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This study is about the characterization of pulp and paper from sago fiber waste. The process has several stages: preparing a solution, sago fiber analysis, pulping process, and printing process. The required solutions are NaOH solution (technical), 10% BaCl2 solution, 0.1 N HCl solution, 60% ethanol solution, phenolphthalein indicator solution, 1% starch indicator solution, sindur methyl indicator solution of NaOH titration, borax solution, Na₂S solution (technical), and THIO solution (1 N; 0.1 N). The pulping process is carried out by inserting sago fiber and solutions into a rotary digester machine for 4 hours (170oC). Then, it is removed after 24 hours and dried by a spinner machine. Characterizations on the sample include: chemical and physical properties, mechanical properties, and optical properties. The result shows that sago fiber waste can be used as raw material for paper. The value of grammage of 62 g/m2, thickness of 0.1294 mm, water absorption capacity of 627.27 g/m2, water content of 9.83%, ash content of 26.26%, pH of 7.9, tensile strength of 14.22 MD and 13.33 CD, brightness of 19.8%, and opacity 22.78. The pore diameter of the paper is 4.608 nm. [ABSTRACT FROM AUTHOR]

Super teak is a fast grown species of teak (Tectona grandis Linn. f) derived from several clones. This has facilitated plantation rotations as short as 5 years. The main target of conventional plantation teak was initially for high value logs. Young teak wood from plantation forest usually has a small diameter. Moreover, the wood from very young stems is unsuitable for direct utilization, but advance wood processing technology can improve the wood properties of small diameter logs. This study aimed to assess the potential utilization of young super teak for high quality products namely furniture, flooring, and veneer, and assess the possibility of the use of manufacture waste for pulp paper and wood pellets as side products. The evaluation were carried out according to the National Indonesian Standard and other international standard requirements. 18 logs from wet (Bogor) and dry (Magetan) sites representing large, medium, and small diameter classes were collected. According to SNI 01-0608-1989 Timber for Furniture, 5-year-old super teak was suitable for furniture production. Furthermore, according to SNI 7732.1: 2011: Teak Veneer, the super teak was classified as Grade C because of the presence of sapwood, pinholes, tight and lose knots. According to Australian Timber Flooring Association, 5-year-old super teak was classifiesd as soft flooring group, the same group as mature teak & radiata pine. The young super teak was classified as Class Quality/Group II with very low active alkali consumption and low Kappa Number according to Indonesian wood fibre criteria for pulp and paper materials and Association of Pulp and Paper in Brazil. Finally, based on SNI 802: 2014 Wood Pellet, the super teak was recommended as by-products for utilising the wood waste. [ABSTRACT FROM AUTHOR]

Wood is biomass made from lignocellulose, the main raw material for pulp production, both species of hardwood and softwood. Utilization of as much wood as possible, including less-known wood species, is widely open because the availability of good quality wood for industry raw materials is increasingly limited. In general, all wood species can be used for paper pulp. But the selection of types of lignocellulosic material with specific properties, such as physical, anatomical and chemical, play an important role in efficiently using wood as raw materials for pulp and paper. This research was carried out to examine wood properties (specific gravity, fiber quality and cellulose content) of four less-known hardwoods from natural tropical rainforest in South Sulawesi province of Indonesia and assessed their potential use for paper pulp. Those hardwood species comprised of cempedak (Artocarpus integer Merr.), jabon merah (Anthocephalus macrophyllus Hav.), saling-saling (Artocarpus teysmanii Miq.) and simpur (Dillenia serrata Thunb.). The specific gravity determined by the weight of oven dried wood and volume of air dried wood where the wood volume be measured by water immersion method, the fiber dimensions measured through maceration preparations which was made using the Franklin procedure, while TAPPI method used for chemical analysis. In condition to paper pulp raw material, the specific gravity (0.40 – 0.69) is categorized as moderate, the fiber quality is classified as good (class II), and cellulose content (40.12% - 52.47%) is categorized as moderate to high for all those less-known hardwoods. All four less-known hardwoods studied potentially use for paper pulp raw materials. But simpur has the most potential due to long fiber and higher specific gravity. [ABSTRACT FROM AUTHOR]

Printing inks of various brands are available in the field. Available colors include Cyan, Magenta, Yellow, and Black. Ink is an important parameter in determining print quality. Optical density is one of the important parameters used to control print quality. The optical density of the printed material is a form of ink-paper interaction. This research is oriented toward investigating the optical density value of Cyan printing ink on coated and non-coated paper. The main objective of this research is to analyze the effect of printing ink thickness on the optimal density value. Optical density values of Cyan prints were obtained using densitometer measurements, printed with the IGT method on coated and uncoated paper. The optical density values of several types of ink on the market that have been printed on coated and uncoated paper have never been reported before. [ABSTRACT FROM AUTHOR]

This work relates to the development of recycled paper from waste paper with the objective of optimization of the composition. The paper properties are much affected with composition like amount of waste paper, fresh paper, cotton shreds, adhesives and water. Samples were made by taking different composites and tests were performed to evaluate properties i.e. thickness, coefficient of friction, moisture content, scott bond strength, tensile strength. The testing concluded that the samples which were having cotton shreds and adhesives showed very good results closer to the fresh paper. [ABSTRACT FROM AUTHOR]

Variation of fly ash and pulp paper composition at 110°C for 6 hours was carried out to discern the effect of fly ash and pulp paper addition in papercrete. sixth variations in paper pulp and fly ash composition were employed to perceive the characteristic that occurs in the sample. The papercrete material composition was weighed, mixed until it became homogeneous and then casted in a mold with a size of 18 x 5 x 2 cm3. Papercrete samples were allowed to stand within the mold at room temperature for 24 hours and released from the mold to stand again for the next 24 hours, after which it heated at 110°C for 6 hours. Characterization using XRF, SEM-EDX as well as Mechanical and physical tests carried out after the samples was cold. Papercrete with sample code K6 has the highest flexural strength and density value of 2.03 MPa and 2.4 gr/cm3 while papercrete with sample code K1 has the lowest flexural strength and porosity value of 0.4 MPa and 17.89%. Characterization shows that the chemical composition of the samples was dominated by the oxide compound CaO and SiO2 in papercrete. [ABSTRACT FROM AUTHOR]

The article examines the structure of silk fibers and ways of efficient use of fiber waste. Based on the analysis of the composition and structure of the fibers, it is possible to use them for paper production. The use of short staple fibers in the production of stock paper and the processes of preparing them for incorporation into paper pulp are widely covered. Information is provided on the technological process of cleaning fibers before adding them to paper pulp. The influence of the mass fraction of fibers in paper on its strength, breaking and tearing has been thoroughly analyzed and illustrated by means of graphs. For the production of high-quality paper, for example, valuable paper, for the preparation of paper used in printing, drawing, painting, etc. Fiber semi-finished products must be cut to the required length and separated into individual fibrils before crushing (grinding). The technology of preparation of natural silk waste as raw material for paper production is presented. In addition to silk fiber cotton fiber was also studied in the research work. Theoretically, the effect of fibers in tearing and breaking of paper is shown in the pictures. The use of fibers in the production of anti-counterfeiting paper and the process of adding them to the pulp are given. [ABSTRACT FROM AUTHOR]