18 results on '"Poliéster"'
Search Results
2. Poluarea cu microplastice - un pericol global real.
- Author
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Țîntoc, Alina, Pîntea, Ioana, Bălan, Elena, Manea, Alina-Silviana, Orbeanu, Janina, Neacșu, Sorinel Marius, and Mititelu, Magdalena
- Subjects
- *
WATER pollution , *PLASTIC marine debris , *SEWAGE disposal plants , *POLYESTER fibers , *SEWAGE sludge , *POLLUTION management - Abstract
Plastic pollution in the oceans and inland waters is a serious problem that affects not only the aquatic environment, but also humans. People are potentially exposed to microplastics through food, drink and air. Polyester fiber is one of the most abundant types of microplastics in the environment. Much of the fiber that enters wastewater treatment plants reaches sewage sludge, which is used as soil fertilizer in many countries. Therefore, preventive and corrective measures should be taken at international, governmental and consumer level to assess the toxicity of common polymers, to reduce the use of plastic and to encourage the use of alternative materials, recycling and the adoption of sustainable practices in the use of plastics and plastic pollution management. There is growing evidence that microplastic pollution (plastic particles below 5 mm in size) is now present in almost all marine ecosystems, even in remote areas, such as the Arctic and Antarctic. Once released into the marine environment, the ecological fate of microplastics primarily depends on the density of the polymer that influences buoyancy, position in the water column and possible interaction with the biota. [ABSTRACT FROM AUTHOR]
- Published
- 2020
3. Adhesion improvement at polyester fabric-silicone rubber interface by plasmas of argon and air to obtain conveyor belt.
- Author
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SARI, Y. BERRAK and KUTLU, BENGI
- Subjects
SILICONE rubber ,ARGON plasmas ,CONVEYOR belts ,POLYESTERS ,ADHESION ,POLYESTER fibers ,ATOMIC force microscopy - Abstract
Copyright of Industria Textila is the property of Institutul National de Cercetare-Dezvoltare pentru Textile si Pielarie 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
- 2019
- Full Text
- View/download PDF
4. Crimping analysis of textured polyester multifilament yarn.
- Author
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STEPANOVIĆ, JOVANA, ŠARAC, TATJANA, RADMANOVAC, NATAŠA, TRAJKOVIĆ, DUŠAN, and STEPANOVIĆ, JOVAN
- Subjects
YARN ,POLYESTERS ,POLYETHERSULFONE ,POLYESTER fibers - Abstract
Copyright of Industria Textila is the property of Institutul National de Cercetare-Dezvoltare pentru Textile si Pielarie 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
- 2019
- Full Text
- View/download PDF
5. EFFECT OF POLIESTER POY FIBRE CROSS-SECTION ON THE YARN PROPERTIES OF AIRJET TEXTURING.
- Author
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CANOGLU, Suat and YUKSELOGLU, S. Muge
- Subjects
YARN ,POLYESTER fibers ,YARN testing ,TEXTURED yarn ,MICROSCOPY - Abstract
POY yarns are well know and commercialized since 1970s. On the other hand, air-jet textured yarns are very common due to their unique structure which looks like natural spun-staple yarns. In the air-jet texturing process, the yarn is textured by overfeeding into a high-pressure of air to create a looped and more natural yarn appearance and also the bulkiness level of the yarn is controlled by input speed and jet-take out speed. This process reassigns flat, continous synthetic yarns into entangled, convoluted, bulky, spun like structured yarns. They are of higher bulk, exhibits increased covering power, have a more subdued lustre and are warmer in hand. Therefore, air-jet textured yarns possess some unique properties that require investigation. Hence, in this study, first the texturing process is introduced briefly and its principle of manufacturing is illustrated, later four different types of yarns were produced with two different fibre crosssections at the three different nozzle types and three different core yarn feeding. The produced yarn production details are given and their breaking strength, elongation and work of rupture are studied along with their morphological structures by using light microscope and SEM. The aim of this study is to investigate the effect of POY fibre cross-section on air-jet textured yarn mechanical properties. The overall results showed that coarser air-jet textured yarns with a round shape have higher breaking strength, elongation and work of rupture than the trilobal shaped yarns. On the other hand, half matted yarn which was applied TiO
2 has also presented better breaking strength and elongation. [ABSTRACT FROM AUTHOR]- Published
- 2016
6. Analysis of lubricants used for spinning of polyester filament yarns.
- Author
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MANCAŞI, IULIAN, ENE, ALEXANDRA, and FĂRÎMĂ, DANIELA
- Subjects
LUBRICATION & lubricants research ,YARN testing ,POLYESTER fibers ,NUCLEAR magnetic resonance ,INFRARED spectroscopy - Abstract
Copyright of Industria Textila is the property of Institutul National de Cercetare-Dezvoltare pentru Textile si Pielarie 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
- 2014
7. Comparison of the evenness, faults and hairiness of compact and conventional spun ring yarns.
- Author
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ALTAS, SEVDA and KADOÕLU, HÜSEYIN
- Subjects
SPUN yarns ,COMPARATIVE studies ,COTTON ,POLYESTER fibers ,VISCOSE ,SPINNING (Textiles) - Abstract
Copyright of Industria Textila is the property of Institutul National de Cercetare-Dezvoltare pentru Textile si Pielarie 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
- 2013
8. INFLUENCIA DEL TIEMPO EN LA FABRICACIÓN DE SISTEMAS FOTOACTIVOS TiO2/POLIESTER.
- Author
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Mejía, Maria Isabel, Marín, Juan Miguel, Díaz, Zaira, Ríos, Luis Alberto, and Restrepo, Gloria
- Subjects
- *
TITANIUM dioxide , *POLYESTER fibers , *IMMERSION in liquids , *DIFFUSION , *SURFACE coatings , *MORPHOLOGY , *MICROSCOPY , *SPECTRUM analysis - Abstract
The support by sol-gel of titanium dioxide appears on polyester fibers using the immersion-diffusion method, using different times of impregnation to determine its effect in the characteristics of the obtained coating. The supported samples were characterized by Scanning Electron Microscopy (SEM), X-Ray Energy Dispersive Spectrometer (EDS), Optical Microscopy (MO) and Fourier Transform Infrared Spectroscopy - Attenuated Total Reflection (FTIR- ATR). The results showed the presence of TiO2 in all prepared systems and different characteristic from the coatings, being the covering obtained to 11 hours the one that displays the best morphologic and structural characteristics. [ABSTRACT FROM AUTHOR]
- Published
- 2007
9. Kinetics of low temperature polyester dyeing with high molecular weight disperse dyes by solvent microemulsion and agrosourced auxiliaries
- Author
-
José María Canal, F. Javier Carrión-Fité, Mònica Ardanuy, Shahram Radei, Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica, Universitat Politècnica de Catalunya. TECTEX - Grup de Recerca en Tecnologia Tèxtil, and Universitat Politècnica de Catalunya. SPPT - Superfícies, Productes i Processos Tèxtils
- Subjects
010407 polymers ,Polymers and Plastics ,Polyester dyeing ,Kinetics ,Butyl acetate ,02 engineering and technology ,Coumarin ,Hot pressing ,coumarin ,01 natural sciences ,Article ,lcsh:QD241-441 ,chemistry.chemical_compound ,Reaction rate constant ,lcsh:Organic chemistry ,Coumarins ,n-butyl acetate ,Microemulsion ,Enginyeria tèxtil::Fabricació tèxtil::Tintura [Àrees temàtiques de la UPC] ,Textile fibers, Synthetic ,o-vanillin ,Poliester ,Tints i tenyit -- Fibres tèxtils sintètiques ,Cinètica química ,General Chemistry ,microemulsion ,021001 nanoscience & nanotechnology ,polyester dyeing ,kinetics ,0104 chemical sciences ,Polyester ,Solvent ,Polyester fibers ,O-vanillin ,chemistry ,Dyeing ,0210 nano-technology ,Dyes and dyeing--Textile fibers, Synthetic ,Fibres tèxtils sintètiques -- Tints i tenyit ,Nuclear chemistry - Abstract
This work focused on the evaluation of the kinetics of dyeing polyester fabrics with high molecular weight disperse dyes, at low temperature by solvent microemulsion. This study also compared the effect of two non-toxic agro-sourced auxiliaries (o-vanillin and coumarin) using a non-toxic organic solvent. A dyeing bath consisting of a micro-emulsion system involving a small proportion of n-butyl acetate was used, and the kinetics of dyeing were analysed at four temperatures (83, 90, 95 and 100 °C). Moreover, the dyeing rate constants, correlation coefficient and activation energies were proposed for this system. It was found that o-vanillin yielded higher dye absorption levels than coumarin, leading to exhaustions of 88% and 87% for Disperse Red 167 and Disperse Blue 79, respectively. K/S values of dyed polyester were also found to be higher for dye baths containing o-vanillin with respect to the ones with coumarin. In terms of hot pressing fastness and wash fastness, generally no adverse influence on fastness properties was reported, while o-vanillin showed slightly better results compared to coumarin.
- Published
- 2018
10. Influencia de les condicions de termosolat sobre el rendiment de colorant dispers en tintura de polièster
- Author
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Cabot Álvarez, Andrea, Canal Arias, José María, and Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
- Subjects
Colorimetria ,Tints i tenyit -- Fibres tèxtils sintètiques ,Teixit PES/CO ,Colorimetria -- Indústria tèxtil ,Tintura ,Polièster ,Polyester fibers ,Condicions ,Termosol ,Teixits i tèxtils -- Tints i tenyit ,Colorimetry ,Dyes and dyeing--Textile fibers ,Fibres tèxtils sintètiques -- Tints i tenyit ,Enginyeria tèxtil::Fabricació tèxtil::Tintura [Àrees temàtiques de la UPC] - Abstract
En aquest estudi s’han avaluat les condicions del procés Termosol en la tintura per fibres de polièster. S’ha treballat amb un teixit PES/CO 50/50, però només s’han tenyit les fibres de polièster. Les condicions de procés són temperatura i temps. La temperatura s’ha mantingut constant a 170ºC i s’ha treballat a diferents temps (30, 45, 60, 75 i 90 segons). S’han realitzat dues sèries per cada temps, per comprovar la repetibilitat del procés. Un cop finalitzat el Termosolat, s’ha dut a terme un rentat amb agent Dispersant, per eliminar part del colorant situat a la superfície del teixit. Per últim, també s’ha efectuat un rentat Reductor, per assegurar-nos l’eliminació total del colorant no fixat. Aquest últim rentat s’ha realitzat per comprovar la seva necessitat. Després de cada tractament s’ha calculat la intensitat de color, per mitjà del colorímetre. Per altre banda, s’ha comprovat la composició exacte del teixit, eliminant el component de cotó. Aquest experiment també permet observar la intensitat real de la tintura. Per últim, els resultats obtinguts a 170ºC s’han comparat amb el treball d’un company amb resultats a 180 i 190ºC, per escollir un procés òptim
- Published
- 2018
11. Das Copoymer PVP/VI als Farbübertragungsinhibitor bei der Wische von Polyestergeweben
- Author
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Francisco-Javier Carrión Fité
- Subjects
Enginyeria tèxtil ::Fabricació tèxtil [Àrees temàtiques de la UPC] ,General Chemical Engineering ,Detergents ,Surface active agents ,Disperse dye ,chemistry.chemical_compound ,Polymer chemistry ,medicine ,Copolymer ,Zeolite ,Alkyl ,Cellulose diacetate ,chemistry.chemical_classification ,Dyes and dyeing--Acrylic fibers ,Polyvinylpyrrolidone ,Poliester ,General Chemistry ,Condensed Matter Physics ,Polyester ,Polyester fibers ,Detergents -- Anàlisi ,chemistry ,Chemical engineering ,Polyamide ,Teixits i tèxtils -- Tints i tenyit ,Enginyeria tèxtil ::Fibres tèxtils::Fibres sintètiques [Àrees temàtiques de la UPC] ,medicine.drug - Abstract
The objective of this research was to study the effect of the copolymer polyvinylpyrrolidone/vinylimidazole (PVP/VI) for use as a dye transfer inhibitor (DTI) during the washing of dyed polyester fabric, depending on the detergent components. The DTI was used to find its efficiency during repeated washings of polyester fabric dyed with disperse dyes. At the same time, its efficiency was tested for preventing dye migration to other fabrics, such as polyester, cellulose diacetate, acrylic, polyamide, cotton and wool. The influence of anionic (SDBS) and non-ionic (alkyl ethoxylates with 6 EO-groups) surfactants in different proportions and with zeolite as a builder and the aforementioned DTI was tested. Results of CIELAB colour differences were obtained for the dyed and undyed polyester fabrics after five washings.
- Published
- 2013
- Full Text
- View/download PDF
12. Modificación química y enzimática de tejidos de poliéster
- Author
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López Pérez, David, López Pérez, David R., Rodríguez Sorigué, María Cristina, and Universitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials
- Subjects
Textile fibers, Synthetic ,Enzimas ,Silk-like ,Química ,Enginyeria tèxtil::Fabricació tèxtil::Acabats tèxtils [Àrees temàtiques de la UPC] ,Decorticado ,Tintura ,Polyester fibers ,Textile finishing ,Ensosado ,Fibres tèxtils sintètiques ,Modificación ,Teixits i tèxtils -- Acabat -- TFG ,Poliéster ,Poliester -- TFG - Published
- 2015
13. Incorporación de micro/nanoesferas en poliésteres degradables y su influencia en procesos de cristalización
- Author
-
López Sánchez, Gonzalo, Puiggalí Bellalta, Jordi, Universitat Politècnica de Catalunya. Departament d'Enginyeria Química, and Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
- Subjects
Polyester fibers ,Textile fibers, Synthetic ,Poliester ,Fibres tèxtils sintètiques ,Enginyeria dels materials::Materials plàstics i polímers [Àrees temàtiques de la UPC] - Abstract
En el presente proyecto se ha estudiado un nuevo poliéster degradable que puede prepararse a partir de fuentes renovables, el poliéster 9,9, prestando atención a su síntesis, caracterización fisicoquímica y estudio de su proceso de cristalización. Por otra parte, se ha considerado la posibilidad de preparar nanoesferas de silica funcionalizadas para su utilización como agente reforzante del poliéster 9,9. La síntesis del polímero se efectuó mediante una policondensación térmica utilizando 1,9- nonanodiol y ácido azelaico. Las condiciones de reacción (temperatura, tiempo, exceso del reactivo más volátil) se variaron para encontrar las más idóneas para alcanzar un peso molecular típico de una polimerización por condensación. El polímero se caracterizo mediante GPC y espectroscopias de IR y RMN. La cristalización del poliéster se estudió mediante microscopia óptica, que permitió observar la morfología característica, determinar la densidad de nucleación y la velocidad de crecimiento. La evolución de los parámetros morfológicos como espaciado interlamelar, espesor cristalino y espesor amorfo se siguió mediante difracción de rayos X utilizando radiación sincrotrón. Se obtuvieron micro/nanopartículas de sílica de tamaño homogéneo y bien diferenciado, utilizando tetraetilortosilicato como precursor. Las partículas tras ser caracterizadas fueron funcionalizadas con (3-aminopropil)trimetoxisilano. El análisis XPS permitió determinar la presencia de nitrógeno en la superficie de las micro/nanoesferas preparadas. El grupo amina de las esferas funcionalizadas se consideró apto para reaccionar con el monómero de ácido azelaico, por lo que en una última etapa se prepararon composites mediante una polimerización in situ en presencia de los distintos tipos de partículas de sílica preparadas (e.g. micro / nano, funcionalizadas / sin funcionalizar).
- Published
- 2012
14. Influence des mélanges en polyglucoside avec un tensioactif anionique dans le lavage d'un tissu en polyester
- Author
-
Carrión Fité, Francisco Javier|||0000-0002-7933-3945
- Subjects
Lavado ,Washing ,Fibres tèxtils -- Anàlisi ,Agents tensioactius ,Poliglucósido ,Poliester ,Polyester ,Surface active agents ,Tensioactif ,Polyester fibers ,Detergents -- Anàlisi ,Lavage ,Polyglucoside ,Surfactant ,Tensioactivo ,Enginyeria tèxtil ::Indústria tèxtil [Àrees temàtiques de la UPC] ,Poliéster - Abstract
El notable desarrollo de los tensioactivosno iónicos como componentes dominantes en las formulaciones detergentes requiere la comprensión de sus prestaciones durante el lavado, no solamente como productos separados sino también como mezclas binarias con tensioactivo aniónico. Con objeto de obtener buenos niveles de biodegradabilidad y toxicidad han aparecido en el mercado los alquil poliglucósidos (APGs). Estos tensioactivos no iónicos, obtenidos de sustancias naturales, son 100% biodegradables y resultan muy interesantes para su aplicación en el lavado. En este trabajo se presenta el comportamiento del APG: C12-C14 con 1,4 grupos glucósido (no iónico), por separado y en mezcla con LAS, en diferentes proporciones de mezcla de estos tensioactivos aniónico con no iónico, sin coadyuvante, con objeto de mostrar su efecto detergente en el tejido de poliéster, ensuciado previamente con impurezas sólida y líquida (negro de humo y ácido oleico). Asimismo, teniendo en cuenta el sangrado de los tejidos teñidos durante el lavado, se obtuvo la decoloración de poliéster teñido y su correspondiente manchado en el mismo artículo y en materiales textiles blancos (tejido multifibra), al ser lavados al mismo tiempo con tales tensioactivos y sus mezclas, utilizando zeolita como coadyuvante y carbonato sódico. El tejido de poliéster antes de su lavado fue teñido con colorantes dispersos. The remarkable emergence of nonionic surfactants as key components in detergent formulations requires an understanding of their benefits during washing, not only as separate products but also as binary mixtures with anionic surfactants. In order to obtain good levels of biodegradability and ecotoxicity, alkyl polyglucosides (APGs) have appeared on the market. These nonionic surfactants, which are obtained from natural substances, are 100% biodegradable and may be usefully applied to the washing process. In this work we examined the behaviour of the APG C12-C14 with 1.4 glucoside groups (nonionic), separately and in a mixture with LAS, in various proportions and without a builder. The aim was to show its effect as a detergent for washing polyester fabric, which had been previously soiled with solid and liquid impurities (carbon black and oleic acid). By taking the bleed of dyed fabrics into account during washing, it was possible to decolour dyed polyester, soiled white polyester and white textile materials (multifibre fabrics) by washing them at the same time with the abovementioned surfactants and their mixtures and by using builders such as zeolite and sodium carbonate. The poliéster fabric was dyed with dispersed dyes. Le développement remarquable des tensioactifs non ioniques en tant que composants dominants dans les formulations de lessive passe par la compréhension de leurs prestations pendant le lavage, non seulement pris séparément, mais aussi en tant que mélanges binaires contenant un tensioactif anionique. Pour obtenir de bons niveaux de biodégradabilité et de toxicité, les alkylpolyglucosides (APG) ont fait leur apparition sur le marché. Ces tensioactifs non ioniques, tirés de substances naturelles, sont 100 % biodégradables et sont très intéressants, appliqués au lavage. L’étude propose une présentation de l’APG : C12-C14 avec 1,4 groupes glucosides (non ioniques), séparément et en mélange avec du LAS, dans différentes proportions de mélange de ces tensioactifs anionique et non ionique, sans adjuvant, pour montrer l’effet détergent sur le tisú en polyester, préalablement taché avec des impuretés solides et liquides (noir de fumée et acide oléique). En outre, compte tenu du dégorgement des tissus teints pendant le lavage, le polyester teint s’est décoloré et le même article a été taché, de même que les textiles blancs (tissu multifibre), lavés en même temps avec ces tensioactifs et leurs mélanges, en utilisant de la zéolite comme adjuvant et du carbonate de sodium. Le tissu en polyester avant lavage abatí été teint avec des colorants dispersés.
- Published
- 2006
15. Método de análisis cuantitativo de las mezclas lana-fibra de poliéster
- Author
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Gacén Guillén, Joaquín
- Subjects
Polyester fibers ,Llana ,Wool ,Poliester ,Mescla ,Enginyeria tèxtil ::Teixits [Àrees temàtiques de la UPC] - Abstract
El objeto del presente trabajo es el estudio de un método de análisis cuantitativo de las mezclas de lana-fibra de poliéster, que permita determinar con suficiente seguridad en qué proporción internvienen ambas fibras en una mezcla de las mismas.
- Published
- 1960
16. Determinación de la densidad de la fibra poliester por el método de 'columna gradiente de densidades'
- Author
-
Puente Garrido, Publio
- Subjects
Fibres de poliester ,Polyester fibers ,Poliester ,Enginyeria tèxtil ::Fibres tèxtils [Àrees temàtiques de la UPC] ,Enginyeria tèxtil ::Fibres tèxtils::Fibres sintètiques [Àrees temàtiques de la UPC] ,Fibres tèxtils ,densitat ,Textile fibers ,Densidad - Abstract
En la industria se presentan a veces problemas en las tinturas de fibras de poliester que son difíciles de resolver y producen lamentables pérdidas de tiempo. La causa de ello es, en algunos casos, la estructura cristalina de las fibras. Estas, cuando están excesivamente cristalizadas hacen que sea más lenta la difusión de los colorantes, y al mismo tiempo disminuye la capacidad de absorción por los mismos, con la consiguiente reducción del rendimiento de la tintura previamente calculado, además de producir efectos secundarios, como son la disminución de la solidez de las tinturas a determinados tratamientos. Este problema se agrava, cuando existen en un tejido fibras de poliester de diferentes partidas, que, en caso de tener distinta cristalinidad, producirá diferentes grados de absorción del colorante, originando en aparición de borrados.
- Published
- 1963
17. Das Copoymer PVP/VI als Farbübertragungsinhibitor bei der Wische von Polyestergeweben
- Author
-
Carrión Fité, Francisco Javier, Universitat Politècnica de Catalunya. Departament d'Enginyeria Tèxtil i Paperera, and Universitat Politècnica de Catalunya. TECTEX - Grup de Recerca en Tecnologia Tèxtil
- Subjects
Dyes and dyeing--Acrylic fibers ,Polyester fibers ,Detergents -- Anàlisi ,Enginyeria tèxtil ::Fabricació tèxtil [Àrees temàtiques de la UPC] ,Poliester ,parasitic diseases ,Detergents ,technology, industry, and agriculture ,Teixits i tèxtils -- Tints i tenyit ,Enginyeria tèxtil ::Fibres tèxtils::Fibres sintètiques [Àrees temàtiques de la UPC] ,Surface active agents - Abstract
The objective of this research was to study the effect of the copolymer polyvinylpyrrolidone/vinylimidazole (PVP/VI) for use as a dye transfer inhibitor (DTI) during the washing of dyed polyester fabric, depending on the detergent components. The DTI was used to find its efficiency during repeated washings of polyester fabric dyed with disperse dyes. At the same time, its efficiency was tested fer preventing dye migration to other fabrics, such as polyester, cellulose diacetate, acrylic, polyamide, cotton and wool. The influence of anionic (SDBS) and non-ionic (alkyl ethoxylates with 6 EO-groups) surfactants in different proportions and with zeolite as a builder and the aforementioned DTI was tested. Results of CIELAB colour differences were obtained for the dyed and undyed polyester fabrics after five washings
18. Thermodynamic and kinetic parameters of polyester dyeing with Disperse Blue 56 using bio-based auxiliaries and co-solvent microemulsion
- Author
-
F. J. Carrión-Fité, Mònica Ardanuy, Shahram Radei, José María Canal, Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica, and Universitat Politècnica de Catalunya. TECTEX - Grup de Recerca en Tecnologia Tèxtil
- Subjects
Polymers and Plastics ,ortho-Vanillin ,Polyester ,Kinetic dyeing ,02 engineering and technology ,Coumarin ,010402 general chemistry ,Kinetic energy ,01 natural sciences ,Anthraquinone ,Disperse dye ,chemistry.chemical_compound ,Chemical Engineering (miscellaneous) ,Microemulsion dyeing ,Microemulsion ,Enginyeria tèxtil::Fabricació tèxtil::Tintura [Àrees temàtiques de la UPC] ,Apparent activation energy ,Poliester ,Tints i tenyit -- Fibres tèxtils sintètiques ,n-butylacetate ,021001 nanoscience & nanotechnology ,0104 chemical sciences ,Ortho-vanillin ,Polyester fibers ,chemistry ,Chemical engineering ,Teixits i tèxtils -- Tints i tenyit ,Dyeing ,0210 nano-technology ,Dyes and dyeing--Textile fibers, Synthetic ,Fibres tèxtils sintètiques -- Tints i tenyit - Abstract
The aim of the study was to dye polyester fabric with a low molecular weight anthraquinone type disperse dye (C.I. Disperse Blue 56), with n-butylacetate as co-solvent in the microemulsion system and the presence of two bio-based auxiliaries (ortho-vanillin and coumarin), at temperatures lower than 100℃. In order to investigate the influence of temperature and auxiliaries on the kinetic dyeing process, the energy of the activation was determined by the kinetic rates constants. The activated entropy values were obtained by the theory of absolute rates of dyeing and diffusion of the activated state of the dye for the disorder state of the dyeing system. Higher activated energies were found, as well as higher activated entropy, meaning higher dye absorption, for polyester samples dyed with ortho-vanillin/n-butylacetate compared with polyester samples dyed with coumarin/n-butylacetate. Color strength values of the polyester fabric dyed using the proposed microemulsion dyeing system at low temperature (95℃) were similar to polyester fabric dyed with a conventional dyeing system at high temperature (135℃). Regarding color fastness to washing and ironing, it was found that the use of the auxiliaries did not significantly modify the fastness values of the dyed samples.
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