21,540,265 results
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2. MarketLine Company Profile: Hankuk Paper Manufacturing Co., Ltd.
- Published
- 2024
3. Paper Meets Plastic: The Perceived Environmental Friendliness of Product Packaging.
- Author
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Sokolova, Tatiana, Krishna, Aradhna, and Döring, Tim
- Subjects
PLASTICS in packaging ,ENVIRONMENTAL risk ,CONSUMER attitudes ,PACKAGING materials ,PAPER ,CONSUMER preferences ,WILLINGNESS to pay ,COGNITIVE bias - Abstract
Packaging waste makes up more than 10% of the landfilled waste in the United States. While consumers often want to make environmentally friendly product choices, we find that their perceptions of the environmental friendliness of product packaging may systematically deviate from its objective environmental friendliness. Eight studies (N = 4,103) document the perceived environmental friendliness (PEF) bias whereby consumers judge plastic packaging with additional paper to be more environmentally friendly than identical plastic packaging without the paper. The PEF bias is driven by consumers' "paper = good, plastic = bad" beliefs and by proportional reasoning, wherein packaging with a greater paper-to-plastic proportion is judged as more environmentally friendly. We further show that the PEF bias impacts consumers' willingness to pay and product choice. Importantly, this bias can be mitigated by a "minimal packaging sticker" intervention, which increases the environmental friendliness perceptions of plastic-only packaging, rendering plastic-packaged products to be preferable to their plastic-plus-paper-packaged counterparts. This research contributes to the packaging literature in marketing and to research on sustainability while offering practical implications for managers and public policy officials. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
4. Effects of precipitated and ground calcium carbonate coating on mechanical properties of fluting paper.
- Author
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Çiçekler, Mustafa, Üzüm, Velican, and Çopurkuyu, Emrullah
- Subjects
CALCIUM carbonate ,PAPER recycling ,TENSILE tests ,COATING processes ,SURFACE coatings - Abstract
Purpose: The purpose of this study is to investigate the effects of a pigment coating on the mechanical properties of fluting paper. Design/methodology/approach: Two different calcium carbonate pigments were used in the preparation of the coated color, precipitated calcium carbonate (PCC) and ground calcium carbonate (GCC). Fluting paper produced by recycling waste paper was used as base paper. The effects of PCC and GCC pigments on mechanical properties were compared. Ring crush test (RCT), corrugating medium test (CMT), corrugating crush test (CCT), tensile and burst strength tests were applied to the coated papers, and the results were compared to the mechanical properties of base paper. Findings: The tensile and burst indices of the coated papers were found to be higher than base papers about 13.9% and 6.05%, respectively. While the coating process positively affected the RCT and CCT values, it did not show a significant impact on the CMT values. GCC, one of the pigments used in coating colors, had a more effective effect on the mechanical properties of fluting papers compared to PCC. Originality/value: These results suggest that coating of fluting papers has a positive effect on mechanical properties and the use of GCC as a pigment is more effective than PCC. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
5. Using Sustainable Technique to Recycle Waste Paper in Academic Institutions.
- Author
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Mansour, Mustafa M.
- Subjects
PAPER recycling ,WASTE paper ,WASTE recycling ,WASTE management ,ECOLOGICAL impact ,POWER resources ,CARBON offsetting - Abstract
It has been clearly demonstrated that it would be feasible to consider recycling paper in an academic institution. This can be achieved through combining specific waste paper baskets, a pulping machine and power supplied by a renewable energy source, with an already established local paper making company. The paper making company would be able to gain a subsidy from the government which pays them to actually recycle paper, to counteract the cost of the pulped paper which is 30% more expensive than raw wood pulp. The academic institution would save money on waste disposal and decrease its carbon footprint by 600% with savings of up to around 5e6 tons of CO2 per year, instead of the 1e2 tones carbon offset for just recycling the paper normally. This entire process could be adapted for recycling the vast quantities of waste paper produced by students, an initiative which often fails due to the high cost of disposal. This could be achieved through urged use of the same paper disposal methods already in use, with the paper being collected and pulped once a week directly from the student paper waste bins. This research aims to study and limit the quantities of paper consumed in academic institutions in Iraq, by identifying the steps of recycling, and the extent of its environmental and economic impact, on the one hand, and on the other hand, the extent to which the Iraqi university community accepts this idea, and then study these quantities and evaluate them economically and find out the possibility of establishing a paper recycling plant based on these quantities. As well as the current research deals with the accumulation of paper waste caused by the performance of exams. In the third semester of the research, the amount of paper waste at Thi Qar University was calculated as a model for conducting a detailed research study of all departments and colleges of the University. the amount of paper waste was (11,055 tons/year), as well as calculating the cost of paper processing for the University amounted to (126252271 Iraqi dinars) and at the end of the third semester, the amount of paper waste in Iraqi academic institutions for the academic year 2022e2023, approximately (367,60976 tons/year). The cost of preparing exam books in Iraqi academic institutions for the academic year 2022e2023 amounted to approximately (4202150971 Iraqi dinars). The devices used in the practical aspect and each device and its purpose in the paper waste recycling process were explained. In addition, in the fourth chapter of the research, waste recycling was carried out in a practical way, and the results were satisfactory. We proposed a project to establish a paper and cardboard waste recycling plant in Nasiriyah, detailing its technical processes and stages in a mature way, the costs of establishing such projects in detail, as well as the annual profit of the project. At the conclusion of the research, some important recommendations were attached that help the paper waste recycling process and its success. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
6. The Role of Waste Reduction Technology in Sustainable Recycling of Waste Paper at Thi-Qar University.
- Author
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Najm, Noor and Mansour, Mustafa M.
- Subjects
PAPER recycling ,WASTE minimization ,SUSTAINABLE development ,PAPER industry ,SUBSIDIES ,ECOLOGICAL impact - Abstract
The purpose of this study is reducing sustainable paper recycling at Thi-Qar University by using waste reduction techniques. It can be argued with much confidence that the idea of recycling paper can be successfully implemented in an academic institution. This can be done by merging the specific waste paper baskets, pulping machine and power from a renewable source with an already established local paper making company. The methods applied in this study are making company would be able to recoup a government subsidy that pays them to recycle paper in order to offset the cost of pulped paper which is 30% more expensive than raw wood pulp. The academic institution that implements this would save money on waste disposal, and cut its carbon footprint in half, by up to 600%, per year approximately five-six tons of CO
2 instead of one-ton-two tones carbon offset for simply recycling the paper. All these steps could also be applied for recycling of the large amount of waste papers generated by students an idea that encounters high costs in recycling hence being rarely implemented. This could be achieved through urged use of the same paper disposal methods already in use, where the paper collected is pulped from the student paper waste bins once a week. The results of this article are more specific yet indirect environmental benefit concerns the recycling habits of students. By providing the means for students to recycle paper at their places of study, it is hoped that they will adopt similar practices in their homes and other areas of life and show that the practice of paper recycling at Thi-Qar University has a success rate of 98.42%. Additionally, a total revenue of $3,527.98 was collected from the value of recycled paper. This can be important, as it is today's young people who will shape the future condition of the environment. If a more conscientious attitude towards recycling can be established, the cumulative environmental benefits could be very significant. On the economic side, recycling paper can potentially save academic institutions a substantial amount of money on their waste disposal. This is because paper and cardboard often make up a high percentage of the waste and these are materials which can be recycled relatively cheaply. By decreasing the volume of general waste, a decrease in waste disposal costs can be achieved. If institutions take it a step further and decide to purchase only recycled paper products, this can also help accelerate the demand for recycled paper and its long-term economic feasibility. The benefits of paper recycling in academic institutions are undoubtedly far-reaching. Not only are the environmental benefits significant, but also the potential cost savings and impact on student attitudes. Probably the most apparent benefits of paper recycling are the environmental ones. The significance of this research is recycling paper in academic institutions is not only beneficial to the environment but also has potential cost-saving implications and significant educational value for students' attitudes. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
7. Preparation of Paper-Based Fluorescent Sensors and Their Application for the Detection of Cu 2+ in Water.
- Author
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Ma, Yue, Li, Hui, Li, Yufeng, and Wei, Dong
- Subjects
FILTER paper ,ENVIRONMENTAL quality ,POLYETHYLENEIMINE ,ENVIRONMENTAL health ,COPPER - Abstract
Excessive copper (Cu
2+ ) causes adverse effects on human health and the ecological environment. Traditional methods for detecting Cu2+ have drawbacks such as high detection costs, complex operating conditions, and being time consuming. Therefore, there is an urgent need to develop simple detection methods to better meet specific health and environment quality needs. In this work, a paper-based fluorescence sensor was prepared (herein referred to as the as-prepared method) by immersing filter paper in aqueous polyethyleneimine (PEI) solution, and its potential use in Cu2+ detection was investigated. The results showed that the as-prepared paper samples, with fluorescence properties obtained by aggregation-induced luminescence of PEI, have selective recognition of Cu2+ based on the internal filtration effect, and the lowest detection limit is 0.03 μM. In addition, the relative error of this method is in the range of 1.80~2.23%, which is relatively comparable to the national standard method (0.63~630 μM), demonstrating high accuracy. Therefore, paper-based sensors with a simple preparation method have potential applications in the detection of Cu2+ in water. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
8. MarketLine Company Profile: Hankuk Paper Manufacturing Co., Ltd.
- Published
- 2023
9. Synthesis of Water-Dispersible Poly(dimethylsiloxane) and Its Potential Application in the Paper Coating Industry as an Alternative for PFAS-Coated Paper and Single-Use Plastics.
- Author
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Hamdani, Syeda Shamila, Elkholy, Hazem M., Alford, Alexandra, Jackson, Kang, Naveed, Muhammad, Wyman, Ian, Wang, Yun, Li, Kecheng, Haider, Syed W., and Rabnawaz, Muhammad
- Subjects
SINGLE-use plastics ,PAPER industry ,KRAFT paper ,COATINGS industry ,PAPER recycling ,PLASTIC marine debris ,FLUOROALKYL compounds ,BIODEGRADABLE plastics - Abstract
Polyethylene-, polyvinylidene chloride-, and per- and polyfluoroalkyl substance-coated paper generate microplastics or fluorochemicals in the environment. Here, we report an approach for the development of oil-resistant papers using an environmentally friendly, fluorine-free, water-dispersible poly(dimethylsiloxane) (PDMS) coating on kraft paper. Carboxylic-functionalized PDMS (PDMS-COOH) was synthesized and subsequently neutralized with ammonium bicarbonate to obtain a waterborne emulsion, which was then coated onto kraft paper. The water resistance of the coated paper was determined via Cobb60 measurements. The Cobb60 value was reduced to 2.70 ± 0.14 g/m
2 as compared to 87.6 ± 5.1 g/m2 for uncoated paper, suggesting a remarkable improvement in water resistance. Similarly, oil resistance was found to be 12/12 on the kit test scale versus 0/12 for uncoated paper. In addition, the coated paper retained 70–90% of its inherent mechanical properties, and more importantly, the coated paper was recycled via pulp recovery using a standard protocol with a 91.1% yield. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
10. Design and Control of Guide-wheel-type Paper Alignment Mechanism to Improve Production Reliability of Corrugated Paper Plants.
- Author
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Shan-Kuo Yang, Chih-Ming Chen, and Chih-Yung Huang
- Subjects
MANUFACTURING processes ,PAPER products ,COMPUTER software ,MASS production ,SERVOMECHANISMS ,POWER plants ,FERTILITY clinics - Abstract
The manufacturing process for corrugated paper products is usually mass production and batch-by-batch production. Therefore, a high-speed mass production is required. Because the conveyer speed of the production line in a corrugated paper plant is very fast, unwanted material loss or even process interruption may occur during the cutting or clipping process if the corrugated paper on the conveyer is slanted. Hence, the paper alignment on a conveyer is important and necessary. In this study, we install photo-couples at both edges directly over the conveyer path to detect whether or not the corrugated paper is slanted from the number difference between non-activated photo-couples of the two edges. The deviated angle is calculated through a computer program using the detected information, and a servomotor-driven wheel aligns the paper in accordance with the calculated angle. This work reduces the material waste and promotes the production reliability and utility rate of the material for a corrugated paper plant. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
11. Marketing Plan For Recycled Paper Hub Business Project.
- Author
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Pratama, Aditya, Indradewa, Rhian, Rahmat Syah, Tantri Yanuar, and Kustiawan, Unggul
- Subjects
INDUSTRIAL marketing ,RECYCLED paper ,PAPER recycling ,PRIVATE sector ,MARKETING planning - Abstract
Businesses that run in recycling industries are one of the trends that are now in demand by many parties and supported by both national and international governments, but in the practice of these business activities there are many components that must be considered, especially if an entity is in the business to business sector. PT Recycled Paper Hub came as an competitive alternative that offers products in the form of recycled paper materials with low impurity levels which will later be used by companies to be processed again into many forms including packaging. By analyzing and implementing a marketing mix approach in accordance with the vision and mission, analysis data obtained from research on internal and external strengths that are quantitative and qualitative, the data obtained reflects business activities in order to achieve business excellence. In this study, the marketing mix carried by PT Recycled Paper Hub is Direct Marketing NICE. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
12. Raw Materials of Chinese Traditional Handmade paper.
- Author
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Cheuk Kei Chan and Xiaohui Yi
- Published
- 2023
- Full Text
- View/download PDF
13. Clearwater Paper Corp SWOT Analysis.
- Subjects
PAPER products industry ,SWOT analysis - Abstract
A SWOT analysis of Clearwater Paper Corporation is presented.
- Published
- 2024
14. Preparation of nanocellulose-based flexible calcium carbonate to improve filler retention and combustion performance of cigarette paper.
- Author
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Ren, Zixing, Li, Kai, Zheng, Han, Li, Geng, Yu, Zhenhua, An, Liangliang, and Liu, Yuxin
- Subjects
CALCIUM carbonate ,SCANNING electron microscopy ,THERMOGRAVIMETRY ,CIGARETTES ,BOND strengths - Abstract
The addition of calcium carbonate to cigarette paper can enhance its combustion performance and apparent properties. However, it does come at the cost of reduced paper strength. In this study, a flexible calcium carbonate (FCC) was developed through the in-situ formation of calcium carbonate on nanocellulose surfaces. The incorporation of FCC into cigarette paper offered the potential to improve filler retention and combustion performance while maintaining high paper strength. The results of the study demonstrated that when compared to the addition of 30% precipitated calcium carbonate (PCC), the filler retention rate in cigarette paper increased by 31.5% when 30% FCC was used. Scanning electron microscopy images showed that only a minimal number of inorganic particles were observed between the fibers in the FCC-containing paper, indicating appropriate air permeability and fiber-fiber bond strength. Furthermore, when compared to PCC-containing paper, the FCC-containing paper exhibited an 8.8% increase in tensile strength and a 7.5% increase in folding resistance. Additionally, thermogravimetric analysis of the cigarette paper revealed that the incorporation of flexible calcium carbonate effectively lowered the thermal decomposition temperature, leading to a 10.3% increase in the combustion rate of FCC-containing paper. The inclusion of FCC into paper fibers has the potential to enhance air permeability and regulate cigarette burning performance. Consequently, the FCC developed in this study holds promise as a substitute for traditional calcium carbonate fillers in cigarette paper applications. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
15. MarketLine Company Profile: Gould Paper Corporation, Inc.
- Published
- 2024
16. Paper-pop-up design as three-dimensional skillin a higher education context.
- Author
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Springer, Leonardo, Pozo Puértolas, Rafael, and Bajanca, Antonio
- Subjects
GRAPHIC design ,UNIVERSITIES & colleges ,COLLEGE curriculum ,STRUCTURAL design ,HIGHER education - Abstract
Copyright of Grafica: Journal of Graphic Design / Documents de Disseny Gràfic is the property of Universitat Autonoma de Barcelona and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
- Full Text
- View/download PDF
17. Feasibility Study of the Paper Sludge Properties in Manufacturing Recycled Filler.
- Author
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Hyeonggyu Lee, Yong Ju Lee, and Hyoung Jin Kim
- Subjects
PAPER recycling ,PARTICLE size distribution ,RECYCLING management ,RECYCLED products ,CARBONATE minerals - Abstract
The mineralization of inorganic components in paper sludge offers potential for their re-use in various fields. This study synthesized carbonates based on the minerals present in paper sludge and aimed to investigate the control of particle size distribution and particle shape of the synthesized carbonates. First, the physicochemical and thermal properties of paper mill sludge and ash were evaluated using a spectrophotometer, XRF, and TGA. Paper sludge ash was obtained by incinerating the paper sludge, followed by a carbonation reaction using CO
2 gas injection and pH neutralization to produce recycled fillers. The average particle size, crystal lattice structure, and morphology of the recycled fillers were analyzed using a particle size analyzer, XRD, and FE-SEM. The results indicate that the recycled filler produced from coating paper sludge exhibited similar brightness and morphology to conventional paper-based fillers, suggesting its potential to replace commercial PCC (Precipitated Calcium Carbonate). In contrast, the recycled filler manufactured using old corrugated container mill sludge was deemed unsuitable due to its low hydration activity. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
18. Environmental Sustainability and The Demand For Recycled Paper: A Case Study of Production and Supply Chain Management at PT. Recycled Paper Hub in the B2B Industry.
- Author
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Prima, Fachmi Firzandi, Indradewa, Rhian, Rahmat Syah, Tantri Yanuar, and Kustiawan, Unggul
- Subjects
RECYCLED paper ,SUPPLY chain management ,SUSTAINABILITY ,BUSINESS partnerships ,BUSINESS-to-business transactions - Abstract
This paper aims to explore PT. Recycled Paper Hub's response to the increasing demand for recycled paper within the context of sustainable production management and supply chain management, with a focus on the B2B industry. The study encompasses an analysis of the company's practices in managing relationships with suppliers of recycled paper, enhancing operational efficiency, and mitigating environmental impacts from its operations. PT. Recycled Paper Hub, a B2B company specializing in processing recycled paper into bales, faces rising demand for its products. This article presents research findings on how the company addresses the growing market demand through the utilization of advanced production technology and the application of lean manufacturing methods to minimize waste. Furthermore, the research evaluates how PT. Recycled Paper Hub manages relationships with suppliers of recycled paper to ensure stable and high-quality supply. Strategic partnerships with suppliers of recycled paper are identified as key success factors in meeting increasing demand. The research findings indicate that the increased demand for bales of recycled paper not only reduces waste and emissions but also reinforces PT. Recycled Paper Hub's commitment to sustainability. These findings offer valuable insights for the paper industry and other companies seeking to adopt more sustainable business models. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
19. Paper: part and parcel of the agriculture industry.
- Author
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du Toit, Magda
- Subjects
AGRICULTURAL industries ,PAPER industry ,BLUEBERRIES ,FORESTS & forestry ,WASTE paper ,CLIMATE change mitigation ,CITRUS ,ARABLE land - Abstract
The article focuses on the importance of sustainable packaging choices in today's consumer-driven market, particularly emphasizing the shift away from plastic towards alternatives like paper. Topics include the increasing demand for paper packaging post-COVID-19, the characteristics and types of paper used in different applications, and the essential role of both virgin and recycled paper in maintaining a sustainable paper cycle.
- Published
- 2024
20. Unbleached Nanofibrillated Cellulose as Additive and Coating for Kraft Paper.
- Author
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Lengowski, Elaine Cristina, Bonfatti Júnior, Eraldo Antonio, Simon, Leonardo Coelho, Izidio, Vitória Maria Costa, Andrade, Alan Sulato de, Nisgoski, Silvana, and Muniz, Graciela Inês Bolzon de
- Subjects
KRAFT paper ,PAPER pulp ,FOOD packaging ,THERMAL stability ,LIQUEFIED gases ,EUCALYPTUS - Abstract
Although paper packages are biodegradable, their applications in food packaging are limited due to high affinity for absorbing moisture and the high permeability of gases and liquids with surroundings. Therefore, exploring the use biodegradable coatings such as nanocellulose to improve barrier is a relevant strategy. This study assessed the efficacy of unbleached nanofibrillated cellulose (NFC) as an additive to paper and coatings. Using NFC derived from unbleached eucalyptus pulp, a 5% mass addition to the paper pulp and a 2 mm wet nanocellulose coating to kraft paper handsheets made from pine pulp were investigated. In addition, nanocellulose films of similar thicknesses were appraised. The physical, morphological, mechanical, and thermal characteristics of the resulting papers were assessed. Incorporating NFC notably enhanced the morphology area of the paper by padding its pores, thus increasing its density by up to 48% and improving its water barrier properties by up to 50%. The mechanical strength showed significant enhancements, particularly in bursting and tensile strength with increases of up to 134% and 50%, respectively. Anyhow, the films exhibited lower bursting indices and no improvement in the tearing index. Nonetheless, the thermal stability of the handsheets with NFC coating meets the minimum requirements for food packaging. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
21. Non-Verbal Communication Aspect in Paper Umbrella Craft as Intangible Cultural Heritage in Malang.
- Author
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Anggriani, Swastika Dhesti, Wibisono, Muhammad Nurwiseso, Deffinika, Ifan, and Ramadhan, Elvira Kurnia
- Subjects
PAPER arts ,CULTURAL property ,CITIES & towns ,FIELD research ,NONVERBAL communication ,HANDICRAFT - Abstract
Paper umbrellas are one of the crafts included in the intangible cultural heritage of Malang, East Java. Currently, it is known that there is only one group of craftsmen who still produce this paper umbrella craft. Although not many of them, this paper umbrella craft still exists among people who like traditional handicrafts. This is evident from how often paper umbrella crafts appear at craft exhibitions in cities in Indonesia. Consequently, there is a pressing need for in-depth research on paper umbrella craftsmanship in Malang City. A valuable avenue for exploration is the examination of non-verbal communication aspects inherent in paper umbrella craftsmanship. This study aimed to determine the non-verbal communication aspects contained in paper umbrella crafts. The research employs a descriptive qualitative approach, focusing on analyzing non-verbal communication aspects. Data was collected using unstructured interview methods, documentation, and field surveys. The collected data was reduced for analysis using nonverbal communication theory. The study findings are presented descriptively, detailing the observed non-verbal communication aspects. The findings reveal three distinct categories of non-verbal communication aspects in paper umbrella craftsmanship: fixed features, semi-fixed features, and non-fixed features. Fixed features include shapes depicted on the umbrella. Semi fixed feature is a choice of material used to make paper umbrellas, colors, and motifs. The materials used are bamboo and paper. The colors of the umbrellas are red and green. The motif drawn on the umbrella is a floral motif. Flowers are present because they are the favorite shapes of the craftsmen who make umbrellas. Non-fixed features encompass the entire process of crafting paper umbrellas, from material preparation to final finishing touches. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
22. Treatment of Pulp and Paper Industrial Effluent Using integrated methods: A review.
- Author
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El-Baz, Amro A., El-Gohary, Emad H., Hendy, Ibrahim A., and Mahmoud, Ahmed M.
- Subjects
PAPER industry ,PAPER mills ,INDUSTRIAL wastes ,POLLUTANTS ,WASTEWATER treatment - Abstract
The pulp and paper sector has become one of the most significant industrial sectors in the world due to its economic benefits. After primary metals and chemicals sectors, the pulp and paper industry produces the third-largest quantity of wastewater. With regard to environmental feedbacks, ongoing legal requirements, and energy efficiency measures, pulp and paper mills have recently encountered difficulties managing the ensuing pollutants. This study identify pulp and paper mill wastewaters properties, quantities and discuss the recent developments of affordable methods dealing with pulp and paper mill wastewaters. According to the results of the current study, employing integrated methods which is a mixture of treatment techniques may be more advantageous from an economic and environmental standpoint in order to reduce environmental contaminants and energy recycling. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
23. Model and solution approach to coordinate production-inventory strategies considering nonlinear price-sensitive demand: application to Canadian pulp and paper industry.
- Author
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Ghasemi, Elaheh, Lehoux, Nadia, and Rönnqvist, Mikael
- Subjects
SIMULATED annealing ,PAPER industry ,PRICES ,PAPER pulp ,SUPPLY chains ,VENDOR-managed inventory - Abstract
This study addresses a practical problem within a multi-level supply chain where a wide range of customers can be served through different strategies such as make-to-stock, make-to-order, or vendor-managed inventory. The customer demand is stochastic, and sensitive to pricing associated with different production-inventory strategies. We propose a two-stage stochastic mixed-integer non-linear programming model. In the first stage, decisions are made regarding the selection of production-inventory strategies and pricing to maximise the expected profit. The second stage involves decisions related to production, inventory, and distribution, which are used to evaluate the first-stage decisions under various scenarios with different levels of accuracy. To solve the model, a metaheuristic approach based on the Simulated Annealing algorithm is developed. To showcase the practical applicability of our model and solution approach, we use a real case study in a Canadian pulp and paper supply chain. The results revealed that both the production-inventory strategy assigned to customers and the sales price underwent changes across scenarios. Furthermore, we demonstrated that by implementing the SA algorithm, we could improve the initial profit by up to 1.43% through slight adjustments in the sales price and assigned strategies for customers. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
24. Investigation of deinking efficiencies of trigromi laserjet printed papers depending on the number of recycling.
- Author
-
Yılmaz, Ufuk
- Subjects
COLORIMETRY ,OPTICAL measurements ,PAPER recycling ,OPTICAL properties ,RECYCLED paper - Abstract
Purpose: This study aims to determine the ink removal efficiency of papers with different recycling numbers and to examine some electrophotographic printing properties. Design/methodology/approach: The base papers prepared according to the INGEDE 11p standard are subjected to six recycling stages (RS) under equal conditions. The physical-optical properties of the papers obtained at the end of each RS are measured and CMYK (cyan, magenta, yellow, key) color measurement scales are printed on each paper with electrophotographic printing. Color measurements of the printed papers are measured using the X-Rite eXact spectrophotometer, adhering to the ISO 13655:2017 standard. According to the measurement results of the optical properties, the ink removal efficiency of each recycling step is determined as a percentage (%) using some formulas. Findings: As general, according to DEMLab and IERIC data, it is determined that the ink removal efficiency increased as the recycling repetition increased. In DEMf factor values, the highest deinking efficiency is obtained after the fourth RS. There is no significant difference between the printing properties of the samples. Originality/value: It has been a matter of curiosity that papers lose their properties after how many RS. Many studies have been carried out on this subject and it has been presented by experimental methods that the printability properties of papers increase or decrease after which RS. This study can be a pioneer for future studies. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
25. Predictable by publication: discovery of early highly cited academic papers based on their own features.
- Author
-
Tang, Xiaobo, Zhou, Heshen, and Li, Shixuan
- Abstract
Purpose: Predicting highly cited papers can enable an evaluation of the potential of papers and the early detection and determination of academic achievement value. However, most highly cited paper prediction studies consider early citation information, so predicting highly cited papers by publication is challenging. Therefore, the authors propose a method for predicting early highly cited papers based on their own features. Design/methodology/approach: This research analyzed academic papers published in the Journal of the Association for Computing Machinery (ACM) from 2000 to 2013. Five types of features were extracted: paper features, journal features, author features, reference features and semantic features. Subsequently, the authors applied a deep neural network (DNN), support vector machine (SVM), decision tree (DT) and logistic regression (LGR), and they predicted highly cited papers 1–3 years after publication. Findings: Experimental results showed that early highly cited academic papers are predictable when they are first published. The authors' prediction models showed considerable performance. This study further confirmed that the features of references and authors play an important role in predicting early highly cited papers. In addition, the proportion of high-quality journal references has a more significant impact on prediction. Originality/value: Based on the available information at the time of publication, this study proposed an effective early highly cited paper prediction model. This study facilitates the early discovery and realization of the value of scientific and technological achievements. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
26. MarketLine Company Profile: C&D Newin Paper & Pulp Corp Ltd.
- Published
- 2023
27. Optical and Printing Properties of Deinked Office Waste Printed Paper.
- Author
-
Ghanbarzadeh, B., Ataeefard, M., Etezad, S. M., and Mahdavi, S.
- Subjects
OPTICAL properties ,DEINKING (Waste paper) ,PHOTOGRAPHIC printing ,CELLULASE ,PAPER recycling - Abstract
Deinking waste paper is done in various ways, and research on newer methods is also being done. Traditional deinking methods to remove ink from waste printing papers have a relatively high efficiency compared to contact methods, but in non-contact printing such as electrophotographic printing (LaserJet printers and photocopiers) due to Mixing of the ink with the paper texture during the stabilization of the ink with the help of high heat, the traditional deinking methods are less efficient and it is necessary to use newer methods. In this research, enzymatic deinking of office waste paper was done by a commercial cellulase enzyme in a neutral environment. 15 tests were conducted, and optical and printing properties including the paper were investigated. By measuring the reflection before and after printing and measuring the print density after printing, it was determined that the printability of deinked paper is within the desired range. Eric's number was 128 ppm for sample number 8 and 138 ppm for sample number 12, which has decreased compared to the control sample with an Eric number of 571 ppm. Measuring the reflection before and after printing and measuring the print density after printing, show that the printability of decomposed ink paper is in the desired range. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
28. Expert Survey on the Impact of Cardboard and Paper Recycling Processes, Fiber-Based Composites/Laminates and Regulations, and Their Significance for the Circular Economy and the Sustainability of the German Paper Industry.
- Author
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Belle, Jürgen, Hirtz, Daniela, and Sängerlaub, Sven
- Abstract
The European Community is striving for a sustainable society as suggested by the UN's 2015 sustainability goals. The circular economy in the paper and packaging industry is of particular importance here because it consumes many resources. The paper industry in Germany with a fiber recycling rate of 85% in 2022 is already a pioneer and role model for other industries. All materials should be recyclable. Fiber-based composites/laminates are currently becoming increasingly important. Essential questions are: which collection systems and recycling paths should be used for fiber-based composites/laminates, and where are there currently challenges with recycling? To answer these questions, 58 questionnaires answered by German experts and practitioners in the German paper industry were evaluated. Wet-strength papers, adhesives, plastic coatings and wax dispersions were perceived as a problem by 70% of all respondents, and packaging residues by almost 40%. Additionally, 90% stated that the composition of paper for recycling changes regularly due to legislation, trends and innovations, while 60% attributed this to recent changes in legislation. For at least 80%, virgin fibers from packaging are valuable for paper recycling, but only 15% of respondents stated that virgin fibers compensate for the disadvantages of rejects. Almost 90% expected challenges with fiber-based composites/laminates in the existing paper for recycling processes. Overall, the collection and recycling of fiber-based composites/laminates in conventional paper for recycling collection and the recycling system is not desirable. An integrated collection, sorting and recycling system should be considered, especially because a further increase in fiber-based composites is to be expected. In the end, the design for recycling and following recycling guidelines are the key to the recycling industry in the future. Good recyclability of fiber-based composites/laminates would improve their acceptance by paper recyclers. Their virgin fibers are particularly valuable. The results of our study are relevant to the recycling and fiber industry, standard-setting bodies, regulatory authorities and research. The limitation of this study is that experts from the paper industry were interviewed, but the recyclability of the fiber materials was not analyzed by measurement, and the machine technology of the interviewees could not be examined and evaluated. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
29. Boric acid-crosslinked poly(vinyl alcohol): biodegradable, biocompatible, robust, and high-barrier paper coating.
- Author
-
Choe, Shinhyeong, You, Seulki, Park, Kitae, Kim, Youngju, Park, Jehee, Cho, Yongjun, Seo, Jongchul, Yang, Hanseul, and Myung, Jaewook
- Subjects
PLASTIC scrap ,PACKAGING waste ,SURFACE coatings ,PLASTICS in packaging ,KRAFT paper ,BIODEGRADABLE plastics - Abstract
The accumulation of plastic packaging wastes in the natural environment highlights the significance of sustainable alternatives. Paper is widely used as a biodegradable packaging material, but poor mechanical strength, barrier properties, and water resistance limit its utility. Typical paper coating materials applied to overcome such drawbacks, such as polyethylene (PE) and ethylene vinyl alcohol (EVOH), are not desirable for sustainability due to environmental persistence. Here, we report a biodegradable, biocompatible, robust, and high-barrier paper coating strategy using boric acid-crosslinked poly(vinyl alcohol) (PVA). Various crosslinked-PVA solutions were prepared using boric acid (BA) and hydrochloric acid (HCl) as a crosslinker and an acid catalyst, respectively. The solutions were coated onto the Kraft paper (KP) through facile bar coating with epichlorohydrin (ECH) as a binder (henceforth referred to as coated papers). The coated papers (KP-P, KP-PB, KP-PBH) show remarkably improved oxygen (∼0.89 cc m
−2 d−1 ) and water vapor (∼5.17 g m−2 d−1 ) barrier properties as well as tensile strength (∼53.0 MPa) that is retained in moist conditions. The coated papers were significantly mineralized into CO2 (59.2–81.6% over 111 d) in the simulated marine environment biodegradation test. Depolymerization of polymer chains and surface degradation of coated papers are evidenced via FT-IR and SEM, respectively. The microcosm test revealed that the intensive disintegration of the coated papers is synergistically driven by both biotic and abiotic factors (i.e., mechanical stress). Moreover, the in vitro biocompatibility tests employing human embryonic kidney and mouse embryonic fibroblast cells, and in vivo biocompatibility test with mice suggest that the coated papers are highly biocompatible. This work provides a promising strategy for paper packaging that enhances packaging performance without compromising environmental sustainability. [ABSTRACT FROM AUTHOR]- Published
- 2024
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- View/download PDF
30. WASTE PAPER MANAGEMENT OF ACADEMIC INSTITUTE: AN ENVIRONMENTAL AND ECONOMICS PERSPECTIVE OF PAPER RECYCLING.
- Author
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PIRZADA, ABDUL MAJEED, MALLAH, NABI BAKHSH, ZUBERI, MUHAMMAD HASHIM, and ALI, IMRAN
- Subjects
PAPER recycling ,RECYCLED paper ,WASTE paper ,WASTE management ,ENVIRONMENTAL economics - Abstract
This research explores the challenges and limitations faced at the basic level for the recycling of paper in an academic institute. It focuses on encouraging recycled paper use rather than bringing traditional virgin paper to prevent the rate of deforestation for reducing global warming. Data was collected from the academic institute via questionnaire and on-site observation and found that the institute was producing approximately 16 tons of wastepaper in a year. Besides that, another purpose of this research is to estimate the energy and assess the environmental effect by using the life cycle assessment as a tool. The results of this study revealed that traditional virgin paper derived from wood proves to be costly and less environmentally friendly than recycled paper. It also revealed that Traditional virgin paper has greater global warming, human toxicity, smog, acidification, and eutrophication potential than recycled paper. This study concludes that recycled paper does not only prove economically beneficent for any institution, but also beneficial for environment as well. [ABSTRACT FROM AUTHOR]
- Published
- 2023
31. Single-fibre coating and additive manufacturing of multifunctional papers.
- Author
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Mikolei, Joanna Judith, Helbrecht, Christiane, Pleitner, Janine Christin, Stanzel, Mathias, Pardehkhorram, Raheleh, Biesalski, Markus, Schabel, Samuel, and Andrieu-Brunsen, Annette
- Published
- 2024
- Full Text
- View/download PDF
32. MarketLine Company Profile: International Paper Co.
- Published
- 2024
33. MarketLine Company Profile: Hankuk Paper Manufacturing Co., Ltd.
- Published
- 2022
34. Filtration Analysis of Microparticles Using Paper-Based Microfluidics.
- Author
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Bhuvaneshwari, K. S., Jeroish, Z. E., Futane, Abhishek, Samsuri, Fahmi, and Narayanamurthy, Vigneswaran
- Abstract
A virus is a sub-microscopic infectious organism that causes diseases in humans, animals, and plants resulting in morbidity and may cause mortality. Proper diagnosis is necessary to initiate the treatment and pave the way to eradicate the viral infection. The current diagnostic kits for nucleic acid amplification assay, blood filtration, single-cell analysis are highly accurate, even though the procedure necessitates large sample volumes, complicated fabrication steps, time-consuming processes, and high costs. The filtration of viral samples from the blood is a tedious process. In this research, we have presented a home-based fabricated paper microfluidic chip to effectively filtrate viral particles from the sample to facilitate the nucleic acid amplification assay. The filtration analysis was exhibited for lateral and vertical flow paper chips fabricated via laser printing and polyethylene terephthalate (PET) encapsulation that circumvents the necessity of a traditional wax printer and hot plate. The results convey that the vertical flow paper chip with grade 4 inlet and outlet filters 98.57% of unnecessary particles from the sample. The paper-based microfluidic chip developed in this research is simple, easy to fabricate, and inexpensive to access in underdeveloped countries. The paper chip can pave the way for applications like lab-on-chip devices, POC assays, rapid nucleic acid amplification tests, cell cultures, and biomolecular research. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
35. Experimental Assessment of Paper Formation Conditions and Structural Two-Sidedness and Their Impacts on Curl Phenomena.
- Author
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Dias, Paulo A. N., Rodrigues, Ricardo, and Reis, Marco S.
- Subjects
FIBER orientation ,IMAGE analysis ,PAPER industry ,PROBLEM solving ,MACHINERY - Abstract
Curl propensity is a critical-to-quality (CTQ) property of paper, as it causes severe problems during printing and other final conversion operations. The main papermaking factor causing the curl phenomenon is the existence of a fiber orientation (FO) gradient across the thickness direction (or ZD), also known as two-sidedness. Therefore, a methodology that characterizes the FO across the ZD is fundamental for papermakers. In this work, we propose and validate an efficient and cost-effective protocol based on sheet splitting and image analysis. Besides assessing the level of FO two-sidedness, the methodology also provides insights into the flow dynamics in the draining zone of the forming section of the paper machine and the drying stresses built into the paper. This information is relevant for monitoring, optimizing, and troubleshooting activities in the paper industry. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
36. Optimisation of Water-Use in Pulp and Paper Mills: A Streamlined Review of Scientific Journal Publications.
- Author
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Ocklind, Felicia, Liback, Kristin, Lundqvist, Lova, Harge, Wilma, and Venkatesh, G.
- Subjects
PAPER pulp ,PULP mills ,PAPER mills ,PAPER industry ,WATER use - Abstract
Copyright of Studia Ecologiae et Bioethicae is the property of Uniwerystet Kardynala Stefana Wyznskiege w Warzawie and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
- Full Text
- View/download PDF
37. Mitsubishi Paper Mills Limited SWOT Analysis.
- Subjects
PAPER industry ,SWOT analysis - Abstract
A SWOT analysis of Mitsubishi Paper Mills Limited is presented.
- Published
- 2023
38. Monitoring of Cleaning Treatments for Paper Heritage with Raman Spectroscopy Mapping.
- Author
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Botti, Sabina, Bonfigli, Francesca, Mezi, Luca, and Flora, Francesco
- Subjects
RAMAN spectroscopy ,PAPER products ,CLEANING ,SPECTRAL imaging - Abstract
In the field of book heritage, it is important to develop cleaning/disinfecting treatments that can slow down the degradation of paper to prevent evident and irreversible damage. The objectives of the cleaning treatments are to remove external contaminants and oxidation and decomposition products of the paper, but these processes must not modify the unique characteristics of the book heritage resulting in irreversible changes in the structure of the paper. Recently, several innovative cleaning treatments were developed with the aim of being minimally invasive; however, to assess the effect of these treatments on paper, it is necessary to use a diagnostic non-destructive, rapid, and affordable process. In previous work, we used surface scanning Raman spectroscopy to develop a diagnostic protocol able to follow the aging processes of the paper, discriminating between hydrolysis and oxidation. In this paper, we applied this protocol to study the action of different types of treatments (hydrogel and EUV irradiation), evaluating both their effectiveness and impact on paper parameters. The results reported here demonstrate that the developed in operando diagnostic procedure can follow the changes in the paper structure comparing them to the variability due to the intrinsic inhomogeneity of paper, without sample contact in a rapid and effective way. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
39. EDITOR'S COMMENTS: Maximizing the Chances of Securing a Revision by Focusing on the Essentials.
- Author
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Brown, Susan
- Published
- 2024
- Full Text
- View/download PDF
40. Paper Textures.
- Author
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Lovett, John
- Subjects
WATERCOLOR ,WATERCOLOR painting ,COTTON fibers ,WOOD-pulp ,PAPER arts - Abstract
Storing and Carrying Paper With all the wetting and scrubbing a good sheet of watercolor paper can handle you would think it was pretty well indestructible. Paper Texture Watercolor paper comes in three main textures: smooth (called hot-pressed), medium (cold-pressed or CP) and rough. Demonstrations, Workshops & Master Painters of the World: WATERCOLOR Choosing a watercolor paper can be one of the most confusing aspects of watercolor painting. [Extracted from the article]
- Published
- 2023
41. Effect of Carbon Fiber Paper with Thickness Gradient on Electromagnetic Shielding Performance of X-Band.
- Author
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Liu, Zhi, Song, Meiping, Liang, Weiqi, Gao, Xueping, and Zhu, Bo
- Subjects
CARBON paper ,ELECTROMAGNETIC shielding ,MULTIPLE scattering (Physics) ,ELECTROMAGNETIC fields ,ELECTROMAGNETIC waves ,CARBON fibers - Abstract
Flexible paper-based materials play a crucial role in the field of flexible electromagnetic shielding due to their thinness and controllable shape. In this study, we employed the wet paper forming technique to prepare carbon fiber paper with a thickness gradient. The electromagnetic shielding performance of the carbon fiber paper varies with the ladder-like thickness distribution. Specifically, an increase in thickness gradient leads to higher reflectance of the carbon fiber paper. Within the X-band frequency range (8.2–12.4 GHz), reflectivity decreases as electromagnetic wave frequency increases, indicating enhanced penetration of electromagnetic waves into the interior of the carbon fiber paper. This enhancement is attributed to an increased fiber content per unit area resulting from a greater thickness gradient, which further enhances reflection loss and promotes internal multiple reflections and scattering effects, leading to increased absorption loss. Notably, at a 5 mm thickness, our carbon fiber paper exhibits an impressive average overall shielding performance, reaching 63.46 dB. Moreover, it exhibits notable air permeability and mechanical properties, thereby assuming a pivotal role in the realm of flexible wearable devices in the foreseeable future. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
42. Oil blotting paper for formalin fixation increases endoscopic ultrasound‐guided tissue acquisition‐collected sample volumes on glass slides.
- Author
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Yamai, Takuo, Ikezawa, Kenji, Seiki, Yusuke, Watsuji, Ko, Kawamoto, Yasuharu, Hirao, Takeru, Daiku, Kazuma, Maeda, Shingo, Urabe, Makiko, Kai, Yugo, Takada, Ryoji, Mukai, Kaori, Nakabori, Tasuku, Uehara, Hiroyuki, Tsuzaki, Sayoko, Ryu, Ayumi, Tanada, Satoshi, Nagata, Shigenori, and Ohkawa, Kazuyoshi
- Subjects
FORMALDEHYDE ,FILTER paper ,PETROLEUM ,PANCREATIC cancer ,OIL filters - Abstract
Objectives: Endoscopic ultrasound‐guided tissue acquisition (EUS‐TA) is used for pathological diagnosis and obtaining samples for molecular testing, facilitating the initiation of targeted therapies in patients with pancreatic cancer. However, samples obtained via EUS‐TA are often insufficient, requiring more efforts to improve sampling adequacy for molecular testing. Therefore, this study investigated the use of oil blotting paper for formalin fixation of samples obtained via EUS‐TA. Methods: This prospective study enrolled 42 patients who underwent EUS‐TA for pancreatic cancer between September 2020 and February 2022 at the Osaka International Cancer Institute. After a portion of each sample obtained via EUS‐TA was separated for routine histological evaluation, the residual samples were divided into filter paper and oil blotting paper groups for analysis. Accordingly, filter paper and oil blotting paper were used for the formalin fixation process. The total tissue, nuclear, and cytoplasm areas of each sample were quantitatively evaluated using virtual slides, and the specimen volume and histological diagnosis of each sample were evaluated by an expert pathologist. Results: All cases were cytologically diagnosed as adenocarcinoma. The area ratios of the total tissue, nuclear, and cytoplasmic portions were significantly larger in the oil blotting paper group than in the filter paper group. The frequency of cases with large amount of tumor cells was significantly higher in the oil blotting paper group (33.3%) than in the filter paper group (11.9%) (p = 0.035). Conclusions: Oil blotting paper can increase the sample volume obtained via EUS‐TA on glass slides and improve sampling adequacy for molecular testing. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
43. Functionalization of sugarcane bagasse–based paper with amla pomace/titanium dioxide nanoparticles providing antimicrobial protection for food safety.
- Author
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Jain, Prachi, Tripathi, Shefali, Deshmukh, Ram Kumar, Gaikwad, Kirtiraj K., and Singh, Suman
- Abstract
The non-wood pulp fibers in the paper and printing industry have been in demand for economic and environmental necessity. In this communication, the agro-processing waste sugarcane bagasse (SCB) and amla pomace was used to develop a packaging application paper. The physical and mechanical properties of non-wood pulp remain an issue for further application. The synergistic effect of nanoparticle TiO
2 and amla pomace addition into the SCB was investigated. The developed SCB paper evaluated the physical, mechanical, and barriers to moisture. The molecular interaction between the constituents of paper was investigated with FTIR. The paper's morphological crystallinity and surface topology behavior were observed in FESEM, XRD, and AFM analysis. The analysis results indicate that the SCB utilization approach could bring a sustainable solution for non-wood pulp. The mechanical properties of the paper have not been considerably affected by the addition of TiO2. The water vapor barrier quality improved as compared to the control bagasse paper. The microstructural topology of the paper is well elaborated through FESEM and AFM. The crystallinity of the paper has been significantly affected by the addition of TiO2 . The EDX analysis confirms the elemental composition of cellulose and TiO2 particles in the paper sheets. In conclusion, the results may not have significantly affected the paper's performance. The antibacterial effectiveness of paper was determined by analyzing its ability to inhibit the growth of E. coli. It was discovered that the antibacterial activity of paper increased as TiO2 concentration increased. Still, the approach to developing paper from agro-processing waste sources with nanoparticles can take a step toward a sustainable packaging solution. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
44. Multi-Functional Repair and Long-Term Preservation of Paper Relics by Nano-MgO with Aminosilaned Bacterial Cellulose.
- Author
-
Mou, Hongyan, Wu, Ting, Ji, Xingxiang, Zhang, Hongjie, Wu, Xiao, and Fan, Huiming
- Subjects
PRESERVATION of books ,DRUG resistance in bacteria ,HYDROGEN bonding ,MAGNESIUM oxide ,CELLULOSE - Abstract
Paper relics, as carrieres of historical civilization's records and inheritance, could be severely acidic and brittle over time. In this study, the multi-functional dispersion of nanometer magnesium oxide (MgO) carried by 3-aminopropyl triethoxysilane-modified bacterial cellulose (KH550-BC) was applied in the impregnation process to repair aged paper, aiming at solving the key problems of anti-acid and strength recovery in the protection of ancient books. The KH550-BC/MgO treatment demonstrated enhanced functional efficacy in repairing aged paper, attributed to the homogeneous and stable distribution of MgO within the nanofibers of BC networks, with minimal impact on the paper's wettability and color. Furthermore, the treatment facilitated the formation of adequate alkali reserves and hydrogen bonding, resulting in superior anti-aging properties in the treated paper during prolonged preservation. Even after 30 days of hygrothermal aging tests, the paper repaired by KH550-BC/MgO was still in a gently alkaline environment (pH was about 7.56), alongside a 32.18% elevation compared to the untreated paper regarding the tear index. The results of this work indicate that KH550-BC/MgO is an effective reinforcement material for improving the long-term restoration of ancient books. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
45. Research on Strengthening Fragile Paper with Polyvinylamine.
- Author
-
Li, Jing, Shi, Meirong, Li, Yuhu, and Fu, Peng
- Subjects
FOURIER transform infrared spectroscopy ,X-ray photoelectron spectroscopy ,NUCLEAR magnetic resonance spectroscopy - Abstract
Paper documents are an important carrier of information related to human civilization, with the reinforcement and protection of fragile paper documents being a key aspect of their protection. This research utilized amphoteric polyvinylamine polymer as a paper reinforcement agent, strengthening the Xuan paper commonly used in paper documents. Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction spectroscopy (XRD), X-ray photoelectron spectroscopy (XPS), solid-state 13C NMR, and other analytical methods were employed to compare the physical properties, micro-morphology, crystallinity, and aging resistance of the paper before and after reinforcement. Research was conducted on the effects of reinforcement, the aging resistance, and the effects on the fiber structure. The results indicate that polyethylenimine has a filling and bridging effect between the paper fibers. After treatment with polyethylenimine, there was a significant improvement in the folding endurance and tensile strength of the paper. Additionally, the paper maintains a good mechanical strength even after undergoing dry heat and humid aging. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
46. Pinecone-Inspired Humidity-Responsive Paper Actuators with Bilayer Structure.
- Author
-
Seelinger, David, Georges, Hussam, Schäfer, Jan-Lukas, Huong, Jasmin, Tajima, Rena, Mittelstedt, Christan, and Biesalski, Markus
- Subjects
ACTUATORS ,FINITE element method ,WATER vapor ,CELLULOSE fibers ,BILAYERS (Solid state physics) ,NONLINEAR oscillators - Abstract
Many plant materials in nature have the ability to change their shape to respond to external stimuli, such as humidity or moisture, to ensure their survival or safe seed release. A well-known example for this phenomenon is the pinecone, which is able to open its scales at low humidity due to the specific bilayer structures of the scale. Inspired by this, we developed a novel humidity-driven actuator based on paper. This was realized by the lamination of untreated paper made from eucalyptus fibers to a paper–carboxymethyl cellulose (CMC) composite. As observed, the hygroexpansion of the composite can be easily controlled by the amount of CMC in the impregnated paper sheet, which, thus, controls the morphologic deformation of the paper bilayer. For a more detailed understanding of these novel paper soft robots, we also studied the dynamic water vapor adsorption, polymer distribution and hygroexpansion of the paper–polymer composites. Finally, we applied a geometrically nonlinear finite element model to predict the bending behavior of paper bilayers and compared the results to experimental data. From this, we conclude that due to the complexity of structure of the paper composite, a universal prediction of the hygromorphic behavior is not a trivial matter. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
47. Preparation of Filter Paper from Bamboo and Investigating the Effect of Additives.
- Author
-
Karchangi, Zahra Kazemi, Nazarnezhad, Noureddin, Labidi, Jalel, and Sharifi, Seyed Hassan
- Subjects
FILTER paper ,BAMBOO ,AIR filters ,POLYVINYL alcohol ,SURFACE area ,CARBOXYL group ,NATURAL fibers ,HYDROXYL group - Abstract
As air pollution escalates, the need for air filters increases. It is better that the filters used be based on natural fibers, such as non-wood fibers, which cause low damage to the environment. However, the short fiber lengths, low apparent densities, and high volumes of non-wood materials can make it challenging to prepare filter paper with the required mechanical and physical properties. In that context, this study focused on utilizing bamboo fibers to fabricate filter paper by employing the anthraquinone soda pulping method. The pulp underwent bleaching and oxidation processes, with the incorporation of cationic starch (CS) and polyvinyl alcohol (PVA) to enhance resistance properties, resulting in the creation of handmade filter papers. The findings revealed that the tear, burst, and tensile strength of filter paper increased with the oxidation and addition of CS and PVA. Air permeability increased with addition of PVA and combination of CS and PVA. FTIR demonstrated the conversion of hydroxyl groups in cellulose chains to carboxyl groups due to oxidation. SEM images illustrated alterations in the fiber structure post-oxidation treatment, with CS reducing pores while PVA and the CS-PVA combination enlarged pore size and enhanced porosity. The BET surface area surface area expanded with oxidation and the addition of the CS-PVA blend, indicating heightened filter paper porosity. Notably, the combined inclusion of CS and PVA not only augmented mechanical strength but also increased porosity while maintaining pore size. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
48. Valorization of Grass Clipping Waste: A Sustainable Approach to Cellulose Extraction and Paper Manufacturing.
- Author
-
Taurbekov, Azamat, Kaidar, Bayan, Baltabay, Akniyet, Imash, Aigerim, Ko, Weon-Bae, Ko, Jeong-Won, Atamanov, Meiram, Mansurov, Zulkhair, and Smagulova, Gaukhar
- Subjects
FOURIER transform infrared spectroscopy ,SULFATE minerals ,BARIUM sulfate ,SCANNING electron microscopy ,PAPER arts - Abstract
This study investigates the physical, mechanical, and structural characteristics of handmade paper samples derived from cellulose extracted from grass clippings using two distinct methods as follows: (1) alkali treatment and (2) alkali treatment followed by bleaching, coupled with the incorporation of barium sulfate as a mineral filler. Our investigation revealed that the handmade paper samples' densities, moisture contents, and thicknesses varied within the ranges of 0.436 to 0.549 g/cm
3 , 5.60 to 2.51%, and 0.41 to 0.50 mm, respectively. The tensile strength and folding endurance of the papers produced through alkali treatment with barium sulfate were notably superior to those produced from bleached pulp and barium sulfate. Our analysis indicates that several critical factors, including paper density, thickness, the crystallinity index, and the microfibrillar structure of cellulose, intricately influence the mechanical and strength properties of the samples. Using Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) techniques, we identified characteristic cellulose bonds and examined cellulose's crystalline and amorphous phases. Additionally, the crystallinity index of the samples was determined using both the Segal and peak deconvolution methods. Scanning electron microscopy (SEM) micrographs revealed interconnected networks of cellulose fibers with varying thicknesses and lengths, along with incorporated mineral filler within the cellulose fiber structure. Variations in mineral particle retention were attributed to the presence or absence of cellulose microfibrils. These findings contribute to our understanding of the observed strength characteristics of the paper samples and underscore the potential applications of cellulose derived from grass clippings, especially when combined with barium sulfate as a mineral filler in paper production. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
49. Air-Drying Time Affects Mortality of Pyrethroid-Susceptible Aedes aegypti Exposed to Transfluthrin-Treated Filter Papers.
- Author
-
Kim, Dae-Yun, Hii, Jeffrey, and Chareonviriyaphap, Theeraphap
- Subjects
AEDES aegypti ,FILTER paper ,HIGH throughput screening (Drug development) ,DISEASE vectors ,MOSQUITO control ,PYRETHROIDS - Abstract
Simple Summary: This study emphasizes the significance of appropriate air-drying times in toxicity bioassays to accurately establish sublethal concentrations and discriminating concentrations for resistance detection in mosquitoes to a highly volatile pyrethroid, namely, transfluthrin. The high-throughput screening system toxicity bioassay study demonstrated consistent dose-dependent responses in susceptible mosquito populations. Our findings emphasize the importance of accurate susceptibility testing to facilitate early resistance detection. The air-drying duration significantly affected the efficacy of transfluthrin: after drying for 24 h, the concentration needed to achieve the same level of efficacy was 2.8 times higher compared to the concentration needed after 1 h of drying. This is the first study to evaluate spatial repellents using a high-throughput screening system toxicity bioassay, yielding precise sublethal concentrations and discriminating concentrations for varying air-drying times of transfluthrin-treated filter papers. The study underscores the importance of early detection of resistant mosquito populations and emphasizes the need to optimize air-drying durations in toxicity bioassays. Selecting the right concentrations and assessing behavioral responses are crucial for developing effective mosquito control strategies with spatial repellents. This research enhances our understanding of resistance dynamics and provides guidance for practical implementation in vector control programs. Increasing temperature can enhance the geographical spread and behavior of disease vector mosquitoes, exposing vulnerable populations to Aedes-borne viruses and infections. To address this risk, cost-effective and sustained intervention vector control tools are required, such as volatile pyrethroid spatial repellents. This study used a high-throughput screening system toxicity bioassay to determine the discriminating concentrations of transfluthrin-treated filter papers with variable air-drying times exposed to pyrethroid-susceptible Aedes aegypti mosquitoes. At the highest transfluthrin concentration (0.01706%), a significant reduction in mosquito mortality was observed in filter papers air-dried for 24 h compared to those air-dried for 1 h (odds ratio = 0.390, p < 0.001, 95% confidence interval: 0.23–0.66). Conversely, no significant difference in mortality was found between filter papers air-dried for 1 h and those air-dried for 12 h (odds ratio = 0.646, p = 0.107, 95% confidence interval: 0.38–1.10). The discriminating concentration was 2.8-fold higher for transfluthrin-treated filter papers air-dried for 24 h than it was for papers air-dried for 1 h, and it increased 5-fold from 1 h to 336 h of air-drying. These results show that the optimal air-drying period of transfluthrin-treated filter paper is critical, as higher discriminating concentration values may lead to underestimations of insecticide resistance. The instability of transfluthrin-treated papers necessitates the use of the World Health Organization (WHO) bottle bioassay, which is the preferred method for determining mosquito susceptibility to volatile insecticides. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
50. Development and Evolution of Papermaking in Ancient China based on the Uses and Forms of Paper.
- Author
-
Xiaohui Yi
- Published
- 2023
- Full Text
- View/download PDF
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