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Innovative technologies for high performance textiles / Ian Holme in COLORATION TECHNOLOGY, Vol. 123, N° 2 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 2 (2007) . - p. 59-73 Titre : Innovative technologies for high performance textiles Type de document : texte imprimé Auteurs : Ian Holme, Auteur Année de publication : 2007 Article en page(s) : p. 59-73 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : Increasing global competition in textiles has created many challenges for European dyers and finishers. The rapid growth in technical textiles and in their end-uses has generated many opportunities for the application of innovative chemical finishes. Novel finishes of high added value for apparel fabrics are also greatly appreciated by a more discerning and demanding consumer market. This review will concentrate on some of the new approaches to producing high added value textiles that provide consumers with greater levels of comfort, safety, aesthetics and functional performance. Some of the technologies to be described are developed to the commercial exploitation stage, while others are still in development but offer potential for the future. Textile finishing personnel and companies must be active in keeping abreast of the developments in chemical finishing that are emerging globally, in order to survive and prosper in this very competitive and cost-conscious sector of the textile industry. The future of textile finishing within Europe depends upon rapid adoption of high performance, high added value finishes that provide innovation and novelty to the consumer, and in seeking out new end-uses and markets for such finishes. Note de contenu : - Easy care, durable press and wrinkle-free finishes - Total easy-care wool knitwear - Ultrahydrophobic surface treatments and self-cleaning finishes - Hydrophilic softeners and moisture management systems - Novel approaches to flame-retardant finishes - New approaches using enzymes - Microencapsulation of chemical finishes and fragrances : Potential areas for growth in microencapsulated finishes - Phase-change materials for thermoregulation - Aromatherapy/fragrance release - Cosmeto-textiles and skin care benefits Antimicrobial and deodorising finishes - Medical textile applications - Insect-repellent and insect-resist treatments - Flame-retardant textiles - Chemical protection - Antimicrobial finishes - Nanocoating technology and smart coatings DOI : 10.1111/j.1478-4408.2007.00064.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00064.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3546 [article]

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Modification of silk with aminated polyepichlorohydrin to improve dyeability with reactive dyes / Xie Weiben in COLORATION TECHNOLOGY, Vol. 123, N° 2 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 2 (2007) . - p. 74-79 Titre : Modification of silk with aminated polyepichlorohydrin to improve dyeability with reactive dyes Type de document : texte imprimé Auteurs : Xie Weiben, Auteur ; He Jinxin, Auteur ; Chen Shuilin, Auteur ; Guoqiang Chen, Auteur ; Peng Taozhi, Auteur Année de publication : 2007 Article en page(s) : p. 74-79 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : Reactive dyes have almost complete exhaustion and ideal fixation on aminated polyepichlorohydrin pretreated silk without addition of salt or alkali. The effects of varying pretreatments and dyeing conditions were studied. The dyeing behaviour of CI Reactive Red 15 on modified silk under pH 6 was investigated. Dyeings of modified silk showed good wash fastness, dry and wet rub fastnesses as well as light fastness. The quality of the dyed silks obtained after pretreatment was shown to be satisfactory and the dyeing effluent was less polluted. Note de contenu : - EXPERIMENTAL : Materials - Pretreatment of silk - Dyeing of unmodified and modified silks - Measurement - Zeta potential testing - Microscopic examination of cross-sections - Fastness testing - Tear strength and elongation testing - RESULTS AND DISCUSSION : Pretreatment of silk with PECH-amine - Comparison of zeta potential of unmodified and modified silds - Investigation of dyeing behaviour - Dyeing properties and dyeing quality - Microscopic analysis - Fastness properties - Mechanical properties DOI : 10.1111/j.1478-4408.2007.00065.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00065.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3547 [article]

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Fading of reactive dyes on cellulose under light and perspiration / Dehua Zhuang in COLORATION TECHNOLOGY, Vol. 123, N° 2 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 2 (2007) . - p. 80-85 Titre : Fading of reactive dyes on cellulose under light and perspiration Type de document : texte imprimé Auteurs : Dehua Zhuang, Auteur ; Liyuan Zhang, Auteur ; Dawei Pan, Auteur ; He Jinxin, Auteur Année de publication : 2007 Article en page(s) : p. 80-85 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : The fading of nine reactive dyes on cotton fabrics under light and perspiration was investigated using the ATTS standard and many factors affecting the stability of these dyes were discussed, viz. exposure environment, chromophores of dyes, the pH value and components of the artificial perspiration. The experimental results show that reactive dyes exhibit lowest stability under simultaneous exposure to light, perspiration and oxygen in a wet state. Among all selected dyes, Cu-complex azo reactive dyes appear to be the most sensitive, whereas anthraquinone reactive dyes show the best stability. The pH value of perspiration may also greatly influence the fading of dyes by affecting the hydrolytic stability of dye–fibre bonding. Furthermore, the study on the contribution of artificial perspiration components discloses that some acidic components play major roles in the fading of the dyes and inorganic salts usually decelerate the fading extent. Note de contenu : - EXPERIMENTAL : Materials - Dyeing - testing method and measurement - RESULTS AND DISCUSSION : Fading of reactive under different exposure environments - Fading of reactive dyes with different chromophores under light and perspiration - Effect of the pH value of perspiration on fading of dyes with different types of reactive group - Impact of the artificial perspiration components on photofading of reactive dyes DOI : 10.1111/j.1478-4408.2007.00066.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00066.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3548 [article]

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Improved reactive dyeing of wool with novel trifunctional reactive dyes / H. J. Cho in COLORATION TECHNOLOGY, Vol. 123, N° 2 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 2 (2007) . - p. 86-95 Titre : Improved reactive dyeing of wool with novel trifunctional reactive dyes Type de document : texte imprimé Auteurs : H. J. Cho, Auteur ; B. H. Jia, Auteur Année de publication : 2007 Article en page(s) : p. 86-95 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : The synthesis of a new trifunctional reactive dye is described in this paper by reaction of a di-chloro-s-triazine dye with the specially synthesised amine, N,N'-bis{2[(2-chloroethyl)sulphonyl]ethyl}amine. When applied to wool from boiling dyebaths at pH 5, fixation efficiency values of 96 % were recorded even at heavy depths (3 % owf). In the case of the béta-chloroethyl sulphone group, there is good evidence that elimination to vinyl sulphone occurs readily in mildly acidic dyebaths at the boil. Since elimination is gradual, the reactive species does not form rapidly allowing migration and level dyeing to be achieved. Note de contenu : - EXPERIMENTAL : Chemicals and reagents - Synthetic methods - Analysis of intermediates and dyes - Effect of boiling modified dye 1 in water - Application of the dyes to wool - High-temperature dyeing in the presence of colourless compound 3 - Determination of dyebath exhaustion - Determination of fixation ratio and total fixation efficiency - Assessment of fabric set as a measure of damage in dyeing - RESULTS AND DISCUSSION : CE analysis of dyes and intermediates - Capillary electrophoresis analysis of modified dyes - Spectroscopic analysis of the intermediates - FT-IR analysis of the modified dye 1 - Dyebath analysis - Application of the dyes to wool - High-temperature dyeing properties - Degree of set for wool dyed with modified dye DOI : 10.1111/j.1478-4408.2007.00067.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00067.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3549 [article]

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A study of the properties of ink-jet printed cotton fabric following low-temperature plasma treatment / C. W. M. Yuen in COLORATION TECHNOLOGY, Vol. 123, N° 2 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 2 (2007) . - p. 96-100 Titre : A study of the properties of ink-jet printed cotton fabric following low-temperature plasma treatment Type de document : texte imprimé Auteurs : C. W. M. Yuen, Auteur ; C. W. Kan, Auteur Année de publication : 2007 Article en page(s) : p. 96-100 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : This paper studies the effect of low-temperature plasma treatment on an ink-jet printed cotton fabric. Due to the specific printing and conductivity requirements for ink-jet printing, not all conventional printing chemicals, such as sodium alginate and urea, used for cotton fabric can be directly incorporated into the ink formulation. As a result, the cotton fabric requires pretreatment with the printing chemicals prior to the stage of ink-jet printing. Cotton is pretreated with the printing chemicals by means of a coating method. The aim of this paper was to study the possibility and effectiveness of applying low-temperature plasma treatment to enhance the performance of pretreatment paste containing sodium alginate so as to improve the properties of the ink-jet printed cotton fabric. Experimental results revealed that a low-temperature plasma pretreatment coupled with the ink-jet printing technique could improve the final printed properties of cotton fabric. Note de contenu : - EXPERIMENTAL : Fabric - Low-temperature plasma treatment - Preparation of pretreatment paste - Fabric pretreatment - Printing procedure - Fabric post-treatment - Colour yield measurements - Yellowness index - Scanning electron microscopy - Colour fastness tests - Outline sharpness measurements - RESULTS AND DISCUSSION : Yellowness index - Colour yield measurement - Scanning electron microscopy - Colour fastness test - Outline sharpness of the ink-jet printed fabric DOI : 10.1111/j.1478-4408.2007.00068.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00068.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3550 [article]

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Decolorisation and mineralisation of CI Reactive Black 8 by the Fenton and ultrasound/Fenton methods / Hui Zhang in COLORATION TECHNOLOGY, Vol. 123, N° 2 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 2 (2007) . - p. 101-105 Titre : Decolorisation and mineralisation of CI Reactive Black 8 by the Fenton and ultrasound/Fenton methods Type de document : texte imprimé Auteurs : Hui Zhang, Auteur ; Daobin Zhang, Auteur ; Yi Zhang, Auteur Année de publication : 2007 Article en page(s) : p. 101-105 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : The effects of pH, ferrous ion and hydrogen peroxide dosage on the decolorisation and mineralisation of CI Reactive Black 8 by the Fenton process with/without ultrasonic irradiation were investigated. It was verified that the presence of ultrasonic irradiation did not enhance the decolorisation of CI Reactive Black 8 significantly by Fenton's reagents, but it enhanced the chemical oxygen demand removal efficiency. The enhancement was more pronounced for lower (<0.89 mm) or higher (>1.78 mm) ferrous ion dosage. The optimal pH for chemical oxygen demand removal was 3.0. Chemical oxygen demand removal efficiency increased with the increasing H2O2 dosage and reached the highest level at 5.88 mm, but further increase in H2O2 dosage would not increase removal efficiency significantly. Note de contenu : - Effect of pH on colour and COD removal - Effect of hydrogen peroxide dosage on colour and COD removal - Effect of ferrous ion dosage on colour and COD removal - UV-vis spectra changes in Fenton and US/Fenton system DOI : 10.1111/j.1478-4408.2007.00069.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00069.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3551 [article]

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Adsorption studies on the treatment of textile dyeing effluent by activated carbon prepared from olive stone by ZnCl2 activation / Mehmet Ugurlu in COLORATION TECHNOLOGY, Vol. 123, N° 2 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 2 (2007) . - p. 106-114 Titre : Adsorption studies on the treatment of textile dyeing effluent by activated carbon prepared from olive stone by ZnCl2 activation Type de document : texte imprimé Auteurs : Mehmet Ugurlu, Auteur ; Ahmet Gürses, Auteur ; Cetin Dogar, Auteur Année de publication : 2007 Article en page(s) : p. 106-114 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : This study aimed to investigate the removal of a reactive dye from aqueous solution by adsorption. Activated carbon prepared from olive stone, an agricultural solid by-product, was used as adsorbent. Different amounts of activating agent (ZnCl2) and adsorbent particle size were studied to optimise adsorbent surface area. The adsorption experiments were conducted at different process parameters such as adsorbent dose, temperature, equilibrium time and pH. The experimental results showed that at equilibrium time 120 min, optimum pH ranged between 3 and 4, and adsorbent dosage was 2.0 g 200 ml-1. While the kinetic data support pseudo-second order, a pseudo-first order model shows very poor fit. Adsorption isotherms were obtained at three different temperatures (288, 298 and 308 K). The fitness of adsorption data to the Langmuir and Freundlich isotherms was investigated. In addition, the thermodynamic parameters such as isosteric enthalpy of adsorption (DeltaHads)y, isosteric entropy of adsorption (DeltaSads)y and free energy of adsorption DeltaG0ads were calculated. BET surface area measurements were made to reveal the adsorptive characteristics of the produced active carbon. The surface area of the activated carbon produced with 20 % w/w ZnCl2 solution was 790.25 m2 g-1. Note de contenu : - EXPERIMENTAL : Preparation and characterisation of activated carbon - Adsorption experiments - RESULTS AND DISCUSSION : Effect of initial dye concentrations - Effect of adsorbent dosage - Effect of pH - Kinetics of dye adsorption - Adsorption isotherms - Desorption studies DOI : 10.1111/j.1478-4408.2007.00072.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00072.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3552 [article]

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Guanidine derivatives used as peroxide activators for bleaching cellulosic textiles / Jackie Y. Cai in COLORATION TECHNOLOGY, Vol. 123, N° 2 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 2 (2007) . - p. 115-118 Titre : Guanidine derivatives used as peroxide activators for bleaching cellulosic textiles Type de document : texte imprimé Auteurs : Jackie Y. Cai, Auteur ; David J. Evans, Auteur Année de publication : 2007 Article en page(s) : p. 115-118 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acyle En chimie, un acyle ou un groupement acyle est un radical ou un groupe fonctionnel obtenu en enlevant le groupement hydroxyle d'un acide carboxylique. Le groupement acyle correspondant à un acide carboxylique de formule RCOOH aura pour formule RCO–, où l'atome de carbone et celui d'oxygène sont liés par une double liaison (groupement carbonyle). Parmi les acyles les plus courants, on retrouve les chlorures d'acyle comme le chlorure d'éthanoyle ou encore le chlorure de benzoyle. Ces réactifs sont utilisés en tant que source d'ions acylium, utilisé pour fixer des groupements acyles sur des composés variés difficilement synthétisables directement. Les amides, les esters et les thioesters tout comme les cétones ou encore les aldéhydes. Agents de blanchiment Alkyle Les alkyles dérivent des alcanes par la perte d'un atome d'hydrogène. Ils peuvent désigner des radicaux ou des substituants sur des molécules organiques complexes. Les alkyles sont des radicaux hautement instables qui ne sont pas isolables à température ambiante. Coton Le coton est une fibre végétale qui entoure les graines des cotonniers "véritables"(Gossypium sp.), un arbuste de la famille des Malvacées. Cette fibre est généralement transformée en fil qui est tissé pour fabriquer des tissus. Le coton est la plus importante des fibres naturelles produites dans le monde. Depuis le XIXe siècle, il constitue, grâce aux progrès de l'industrialisation et de l'agronomie, la première fibre textile du monde (près de la moitié de la consommation mondiale de fibres textiles). Fibres cellulosiques Guanidine La guanidine est un composé cristallin formée lors de l'oxydation de la guanine. Elle est utilisée dans la production de plastiques et d'explosifs. Elle se trouve également dans l'urine, étant un produit du métabolisme. Elle n'est pas commercialisée telle quelle, mais sous forme de sel (chlorhydrate, acétate, carbonate,...). Elle peut également céder un proton. Son pKa est de l'ordre de 20. UTILISATION : Les sels de guanidine sont des agents chaotropiques qui déstabilisent les interactions faibles impliquées dans la structure spatiale des protéines. Pour cette raison, ils sont utilisés pour provoquer la dénaturation des protéines. Peroxydes Index. décimale : 667.3 Teinture et impression des tissus Résumé : This paper reports on a new technology for bleaching cellulosic textiles. The technology is based on the use of a substituted guanidine additive in a peroxide bleaching system. We have discovered that the addition of an asymmetrically substituted alkyl or acyl guanidine to the peroxide bleaching process significantly enhances the bleaching performance, leading to a whiter and brighter end-product. The new process allows effective bleaching of cellulosic textiles to be achieved under relatively mild conditions, preserving the desirable qualities of bleached substrates. In this paper, the guanidine-based activators are compared with tetra-acetylethylenediamine, one of the most popular activators currently on the market. Note de contenu : - EXPERIMENTAL : Textile substrates - Chemicals - Bleaching methods - Measurements - RESULTS AND DISCUSSION : Bleaching of cotton fabric "with alkyl guanidines and an alkyl biguanide - Effect of bleaching temperature and pH - Bleaching of cotton with acyl guanidines - Bleaching of cellulose blends with the guanidine-based activators DOI : 10.1111/j.1478-4408.2007.00070.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00070.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3553 [article]

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Colour gamut produced by applying mixtures of natural dyes on de-inked mechanical pulp / M. I. Savvidou in COLORATION TECHNOLOGY, Vol. 123, N° 2 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 2 (2007) . - p. 119-123 Titre : Colour gamut produced by applying mixtures of natural dyes on de-inked mechanical pulp Type de document : texte imprimé Auteurs : M. I. Savvidou, Auteur ; D. G. Economides, Auteur Année de publication : 2007 Article en page(s) : p. 119-123 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants végétaux Colorimétrie Plantes marines Teinture -- Fibres textiles Index. décimale : 667.3 Teinture et impression des tissus Résumé : Plants that are available from various regions of Greece were investigated as sources of natural dyes in a paper-dyeing operation. The production of natural dyes was achieved by aquatic extraction of plant materials in order to obtain an environmentally friendly method of producing the dyes. The extracted dyes were applied on de-inked mechanical pulp. A broad variation in shade and colour depth was achieved by applying mixtures of plant extracts in various combinations. The produced colours were found to lie in the first and second quadrant of a two-dimensional chromatic diagram. Note de contenu : - Production of the de-inked mechanical pulp - Storage and extraction of the plant material - Dyeing - Colour measurement DOI : 10.1111/j.1478-4408.2007.00071.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00071.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3554 [article]

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