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Fabrication of high-quality silica photonic crystals on polyester fabrics by gravitational sedimentation self-assembly / Lan Zhou in COLORATION TECHNOLOGY, Vol. 131, N° 6 (12/2015)  

[article]  inCOLORATION TECHNOLOGY > Vol. 131, N° 6 (12/2015) . - p. 413-423 Titre : Fabrication of high-quality silica photonic crystals on polyester fabrics by gravitational sedimentation self-assembly Type de document : texte imprimé Auteurs : Lan Zhou, Auteur ; Yujiang Wu, Auteur ; Guojin Liu, Auteur ; Yichen Li, Auteur ; Qinguo Fan, Auteur ; Jianzhong Shao, Auteur Année de publication : 2015 Article en page(s) : p. 413-423 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composés inorganiques -- Synthèse Cristaux photoniques Gel de silice Microsphères Polyesters Silice La silice est la forme naturelle du dioxyde de silicium (SiO2) qui entre dans la composition de nombreux minéraux. La silice existe à l'état libre sous différentes formes cristallines ou amorphes et à l'état combiné dans les silicates, les groupes SiO2 étant alors liés à d'autres atomes (Al : Aluminium, Fe : Fer, Mg : Magnésium, Ca : Calcium, Na : Sodium, K : Potassium...). Les silicates sont les constituants principaux du manteau et de l'écorce terrestre. La silice libre est également très abondante dans la nature, sous forme de quartz, de calcédoine et de terre de diatomée. La silice représente 60,6 % de la masse de la croûte terrestre continentale. Systèmes auto-assemblés Textiles et tissus synthétiques Index. décimale : 667.3 Teinture et impression des tissus Résumé : A series of monodispersed silica microspheres with favourable sphericity and different diameters in the range 180–380 nm were prepared by adjusting the concentrations of tetraethylorthosilicate, ammonia, and deionised water by the Stöber method. In different self-assembly conditions, the quality of silica photonic crystals on a polyester fabric substrate was investigated by field-emission scanning electron microscopy for the morphology of the crystal structures and by spectrometry for their stop band intensities. High-quality silica photonic crystals with a face-centred cubic (fcc) array on polyester fabrics were produced at a low evaporation rate by adopting a high-relative-humidity controlled condition with a medium mass fraction of colloidal silica, and exhibited brilliant and variable structural colours, depending on the photonic band gap regulated by the spherical size of the silica microspheres and the viewing angles. Note de contenu : - EXPERIMENTAL : Reagents and materials - Synthesis of monodispersed silica colloidal microspheres - Self-assembly of silica colloidal microspheres on polyester fabrics by gravitational sedimentation - Characterisation - RESULTS AND DISCUSSION : Synthesis of monodispersed silica colloidal microspheres - Influential factors of self-assembly in the fabrication of silica photonic crystals on the surface of polyester fabric DOI : 10.1111/cote.12164 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12164 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25087 [article]

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Controlling fibrillation – experiences of the dyeing and finishing of lyocell fibres / Jim Taylor in COLORATION TECHNOLOGY, Vol. 131, N° 6 (12/2015)  

[article]  inCOLORATION TECHNOLOGY > Vol. 131, N° 6 (12/2015) . - p. 424-433 Titre : Controlling fibrillation – experiences of the dyeing and finishing of lyocell fibres Type de document : texte imprimé Auteurs : Jim Taylor, Auteur Année de publication : 2015 Article en page(s) : p. 424-433 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Fibres cellulosiques Fibres textiles synthétiques -- Finition Fibrillation Marketing Production Teinture -- Fibres textiles synthétiques Tricot Index. décimale : 667.3 Teinture et impression des tissus Résumé : This review centres on the development of dyeing and finishing technologies for lyocell (TENCEL®) fibres since they were introduced onto the market in 1992. Initially, it will look at the reason for starting manufacture of the fibre and its manufacturing technology. An overview of basic dyeing performance is followed by a critical assessment of the fibre's introduction into the commercial world and the problems that ensued from its fibrillation property. The review then outlines the pioneering process development efforts made in Japan. Dye machinery manufacturers also played an important role in developing processing routes, particularly, but not exclusively, Then, Thies, and Krantz. Courtaulds Tencel formed an alliance with Sir T & A Wardles of Courtaulds Textiles, setting up a project to demonstrate successful jet processing of lyocell fabrics. Investment in jet dyeing machines and personnel was critical: the review explains how it was done and results that were achieved. It also considers how to control fabric behaviour in relation to creasing and fibrillation. The latter phenomenon held the fibre back from knitted applications. Both Courtaulds and Lenzing developed non-fibrillating versions of the fibres. This review covers these advances, as well as how new markets have been developed for the fibre, such as workwear and bed sheeting. It concludes by looking at the key market segments today and how Lenzing sees the lyocell market evolving. Note de contenu : - The lyocell production process - Fundamental dyeing behaviour - Fundamental fibre properties and their influence on dyeing and finishing - Basic process for standard TENCEL - Processing in garment form - The nidom development - Piece processing on jet machines - The Sir T & A Wardles project - Continued development of the piece process - The importance of woven fabric construction in wet processing - Peirce's fabric cover factor theory - Knitted fabric structures - The development of non-fibrillating lyocell - Comparison of TENCEL A100 and LF - Lyocell is not just peach skin - Chemical finishing is the key - Pretreatment with NaOH - Lyocell markets today and in the future - Expansion of products and markets DOI : 10.1111/cote.12184 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12184 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25088 [article]

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Interaction of phenol red with cetyltrimethylammonium bromide in aqueous solution in COLORATION TECHNOLOGY, Vol. 131, N° 6 (12/2015)  

[article]  inCOLORATION TECHNOLOGY > Vol. 131, N° 6 (12/2015) . - p. 434-438 Titre : Interaction of phenol red with cetyltrimethylammonium bromide in aqueous solution Type de document : texte imprimé Année de publication : 2015 Article en page(s) : p. 434-438 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bromure de cétyl-triméthyl-ammonium Colorants acides Dynamique moléculaire Solutions aqueuses (chimie) Index. décimale : 667.3 Teinture et impression des tissus Résumé : This paper studies the interaction of anionic dye Phenol Red with cationic surfactant cetyltrimethylammonium bromide in aqueous solution and its influence on the formation of cetyltrimethylammonium bromide micelles for the first time. We obtain a series of thermodynamic parameters of the interaction by establishing a reasonable physical model of the association. Moreover, an in-depth study on the variation in the absorption spectrum finds that the value of absorbance at the maximum absorption peak changes regularly with increase in the cetyltrimethylammonium bromide concentration. By establishing the micellisation models and measuring the changes in electrical conductivity with different cetyltrimethylammonium bromide concentrations, the critical micelle concentration values are obtained, which are essentially the same as the range of concentrations of regular change in absorbance, which shows that the formation of the cetyltrimethylammonium bromide micelles have an impact on the association interaction between Phenol Red and cetyltrimethylammonium bromide. All these data and phenomena illustrate a strong interaction between Phenol Red and cetyltrimethylammonium bromide. Note de contenu : - The association equilibrium constant and spectrogram between phenol red and cetyltrimethylammonium bromide in aqueous solution - The micellisation thermodynamic parameters of cetyltrimethylammonium bromide in the absence and in the presence of phenol red DOI : 10.1111/cote.12183 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12183 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25089 [article]

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Improving the photostability of bleached silk without reducing its whiteness / Wang Zongqian in COLORATION TECHNOLOGY, Vol. 131, N° 6 (12/2015)  

[article]  inCOLORATION TECHNOLOGY > Vol. 131, N° 6 (12/2015) . - p. 439-443 Titre : Improving the photostability of bleached silk without reducing its whiteness Type de document : texte imprimé Auteurs : Wang Zongqian, Auteur ; Weiguo Chen, Auteur ; Xuewei Zhou, Auteur ; Chaonan Liu, Auteur ; Keith R. Millington, Auteur Année de publication : 2015 Article en page(s) : p. 439-443 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Absorbeurs de rayonnement ultraviolet Blanchiment Chimie textile Photoabsorption Photostabilité Soie et constituants Index. décimale : 667.3 Teinture et impression des tissus Résumé : Bleached silk is rapidly yellowed by exposure to the ultraviolet radiation present in sunlight. The conventional application of a water-soluble hydroxyphenyl benzotriazole ultraviolet absorber (such as UVFast W) to bleached silk reduces its rate of photoyellowing but has a negative impact on the whiteness of the bleached silk, largely cancelling out the improvements in whiteness achieved during bleaching. Therefore, a series of bleaching processes and aftertreatments using UVFast W on silk were investigated, with the measurement of reflection spectrum, whiteness, yellowness, and strength before and after exposure to ultraviolet radiation. The results show that whiteness of silk treated by oxidation–reduction double bleaching can be increased, and the whiteness of double-bleached silk with 4% UVFast W aftertreatment was even slightly higher than that of the hydrogen-peroxide-bleached silk. After ultraviolet irradiation, double-bleached silk samples with 4% UVFast W treatment resulted in both the highest whiteness and optimum photostability by comparison with unbleached standard silk and hydrogen-peroxide-bleached silk samples with and without 4% UVFast W treatment, and its strength difference was superior to the samples, except for standard silk with 4% UVFast W treatment after exposure to UV radiation for 18 h. Note de contenu : - EXPERIMENTAL : Materials - Oxidative bleaching with hydrogen peroxide - UVFast W treatment process for unbleached and hydrogen-peroxide-bleached silk - UVFast W treatment from a reductive bleach bath - Photostability testing - Yellowness measurement - Whiteness measurement - Colour measurement - Breaking strength test - RESULTS AND DISCUSSION : Colour values of silk and hydrogen-peroxide-bleached silk with and without UVFast W treatment - Colour values of double-bleached silk with and without UVFast W treatment - Photostability of silk and bleached silk with and without UVFast W treatment DOI : 10.1111/cote.12185 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12185 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25090 [article]

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Adsorption behaviour of carbon black/latex by cationised cotton fabrics / Chunxia Wang in COLORATION TECHNOLOGY, Vol. 131, N° 6 (12/2015)  

[article]  inCOLORATION TECHNOLOGY > Vol. 131, N° 6 (12/2015) . - p. 644-450 Titre : Adsorption behaviour of carbon black/latex by cationised cotton fabrics Type de document : texte imprimé Auteurs : Chunxia Wang, Auteur ; Benjamin Tawiah, Auteur ; Rongrong Cui, Auteur ; Liping Zhang, Auteur ; Shaohai Fu, Auteur Année de publication : 2015 Article en page(s) : p. 644-450 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Adsorption Cationisation 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). Dispersions et suspensions Latex Noir de carbone Polymérisation en émulsion Teinture -- Fibres textiles Index. décimale : 667.3 Teinture et impression des tissus Résumé : A carbon black/latex dispersion was prepared by mini-emulsion polymerisation, and its absorption behaviour towards cationised cotton fabric was investigated. The results indicated that the prepared carbon black/latex dispersion had excellent freeze–thaw stability. Cotton fabric that was cationised with 3 g/l of 3-chloro-2-hydroxypropyltrimethyl ammonium chloride at a liquor ratio of 30:1 can be optimally dyed with 4% owf carbon black/latex under the conditions of pH 7.2, 60 °C, and 1 h. The adsorption behaviour of the carbon black/latex towards cationised cotton fabric followed the Langmuir adsorption isotherm, with a lower dyeing rate and a better colour levelness than the ordinary carbon black dispersion with binder. Note de contenu : - EXPERIMENTAL : Materials - Preparation of the carbon black/latex dispersion - Dyeing of cotton fabric - Characterisation of the carbon black/latex dispersion - Colour performance of the dyed cotton fabric - RESULTS AND DISCUSSION : Properties of the carbon black/latex dispersion - Dyeing conditions - Adsorption behaviour of the carbon black/latex towards cationised cotton fabrics - Properties of dyed cotton fabrics DOI : 10.1111/cote.12186 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12186 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25091 [article]

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Extraction of juglone from Pterocarya fraxinifolia leaves for dyeing, anti-fungal finishing, and solar UV protection of wool / Izadyar Ebrahimi in COLORATION TECHNOLOGY, Vol. 131, N° 6 (12/2015)  

[article]  inCOLORATION TECHNOLOGY > Vol. 131, N° 6 (12/2015) . - p. 451-457 Titre : Extraction of juglone from Pterocarya fraxinifolia leaves for dyeing, anti-fungal finishing, and solar UV protection of wool Type de document : texte imprimé Auteurs : Izadyar Ebrahimi, Auteur ; Mazeyar Parvinzadeh Gashti, Auteur Année de publication : 2015 Article en page(s) : p. 451-457 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antifongiques Chélates Colorants végétaux Extraction (chimie) Laine Produits naturels Protection contre le rayonnement ultraviolet Sels métalliques Solidité de la couleur Teinture -- Fibres textiles Textiles et tissus -- Finition Index. décimale : 667.3 Teinture et impression des tissus Résumé : In many countries, the search for new sources of natural colourants has recently been intense. This paper deals with the extraction procedure, dyeing behaviour, antifungal activity, and ultraviolet protection of Pterocarya fraxinifolia as a new natural source of dyes. Juglone was found as the main extracted compound after characterisation by ultraviolet-visible spectrophotometry and Fourier transform infrared spectroscopy. Mordanting and subsequent dyeing of wool with extracted juglone were then performed to study the dyeability and antifungal activities. Three metal salts, aluminium sulfate, copper sulfate, and iron sulfate, were used as chelating materials. The colorimetric properties of samples were evaluated using a reflectance spectrophotometer. Furthermore, the washing and light fastness properties were tested according to ISO 105-CO3:1989 and ISO 105-B01:2014. Interestingly, we found P. fraxinifolia to be a source of strong antifungal compounds against microorganisms. Extracted juglone also exhibited strong protection activity against solar ultraviolet rays. Note de contenu : - Ultraviolet absorption by extracted juglone - Assessment of extracted juglone and samples by Fourier transform infrared spectroscopy - Evaluation of wool dyeability - Colour fastness properties - Antifungal assessment - Influence of natural dyeing on ultraviolet protection of wool DOI : 10.1111/cote.12180 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12180 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25092 [article]

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Blue core-shell nanospheres prepared by dyeing poly(styrene-co-methacrylic acid) dispersions / Kuanjun Fang in COLORATION TECHNOLOGY, Vol. 131, N° 6 (12/2015)  

[article]  inCOLORATION TECHNOLOGY > Vol. 131, N° 6 (12/2015) . - p. 458-463 Titre : Blue core-shell nanospheres prepared by dyeing poly(styrene-co-methacrylic acid) dispersions Type de document : texte imprimé Auteurs : Kuanjun Fang, Auteur ; Xiaojie Xua, Auteur ; Yuqing Cai, Auteur ; Longyun Hao, Auteur ; Jianbo Zhang, Auteur ; Yunguo Zhao, Auteur Année de publication : 2015 Article en page(s) : p. 458-463 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Copolymère styrène/acide méthacrylique Copolymères -- Synthèse Nanoparticules Polymères en émulsion Teinture -- Fibres textiles Index. décimale : 667.3 Teinture et impression des tissus Résumé : Blue poly(styrene-co-methacrylic acid) nanospheres were prepared by dyeing polymer dispersions with CI Disperse Blue 56. The coloured nanospheres had a clear shell with a thickness of 32.5 nm. The average diameter of the nanospheres increased from 288 to 353 nm, and the glass transition temperature was raised from 109.6 to 117.9 °C after coloration. Ultraviolet-visible absorption spectra, transmission electron microscopy, and differential scanning calorimetry show that the amino and/or hydroxyl groups of the disperse dyes formed hydrogen bonds with the carboxyl groups on the surfaces of the nanospheres during the coloration process, resulting in increased particle sizes and shell layers. The dye content increased almost linearly with increasing dye concentrations or dyeing temperatures within a certain range. By increasing the pH of the dyeing bath from 4 to 5, the dye content increased sharply from 0.68 to 1.49% because of the ionisation of the carboxyl groups of the macromolecules. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of poly(styrene-co-methacrylic acid) nanosphere dispersions - Preparation and purification of coloured poly(styrene-co-methacrylic acid) nanospheres - Dye contents of the coloured nanospheres - Ultraviolet-visible measurements - Transmission electron microscopy - Differential scanning calorimetry - RESULTS AND DISCUSSION : Morphology of the poly(styrene-co-methacrylic acid) nanospheres - Glass transition temperatures - Ultraviolet-visible spectra of the coloured nanospheres - Dye contents of the coloured poly(styrene-co-methacrylic acid) nanospheres DOI : 10.1111/cote.12181 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12181 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25115 [article]

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Enhanced dyeability of poly(ethylene terephthalate)/organoclay nanocomposite filaments / Ilhan Özen in COLORATION TECHNOLOGY, Vol. 131, N° 6 (12/2015)  

[article]  inCOLORATION TECHNOLOGY > Vol. 131, N° 6 (12/2015) . - p. 464-473 Titre : Enhanced dyeability of poly(ethylene terephthalate)/organoclay nanocomposite filaments Type de document : texte imprimé Auteurs : Ilhan Özen, Auteur Année de publication : 2015 Article en page(s) : p. 464-473 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Argile Colorants Extrusion filage Matériaux hybrides Montmorillonite Polyéthylène téréphtalate Polymères -- Propriétés thermiques Solidité de la couleur Teinture -- Fibres textiles synthétiques Index. décimale : 667.3 Teinture et impression des tissus Résumé : This study deals with the generation of poly(ethylene terephthalate)/organoclay nanocomposite filaments by the melt-spinning method and with the investigation of their morphological and dyeing properties. Different montmorillonite types of clay (Resadiye and Rockwood) were modified using different intercalating agents, and poly(ethylene terephthalate) nanocomposite filaments containing 0.5 and 1 wt% organoclays were prepared. Afterwards, the filaments were dyed with two disperse dyes (Setapers Red P2G and Setapers Blue TFBL-NEW) at different temperatures (100, 110, and 120 °C) in the absence/presence of a carrier. Organoclays and poly(ethylene terephthalate)/organoclay nanocomposites showed an increased d-spacing between clay layers. Irrespective of clay and surfactant type, poly(ethylene terephthalate)/organoclay nanocomposite filaments dyed at 120 °C in the presence of only a very small amount of carrier showed appreciable dyeability in comparison with neat poly(ethylene terephthalate). The dyeability of the organoclay-containing poly(ethylene terephthalate) samples was found to be better in spite of having increased degrees of crystallinity. Moreover, the colour fastness properties of the clay-containing samples were not affected adversely. Note de contenu : - EXPERIMENTAL : Materials - Surfactant synthesis and clay modification - Preparation of the poly(ethylene terephthalate)/organoclay nanocomposites filaments - Dyeing of the poly(ethylene terephthalate)/organoclay nanocomposites filaments - Characterisation - RESULTS AND DISCUSSION : Morphology - Thermal behaviour - Dyeability - Colour fastness DOI : 10.1111/cote.12179 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12179 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25116 [article]

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Modelling the properties of pigment-printed polypropylene nonwoven fabric using the Box–Behnken technique / Tanveer Hussain in COLORATION TECHNOLOGY, Vol. 131, N° 6 (12/2015)  

[article]  inCOLORATION TECHNOLOGY > Vol. 131, N° 6 (12/2015) . - p. 474-479 Titre : Modelling the properties of pigment-printed polypropylene nonwoven fabric using the Box–Behnken technique Type de document : texte imprimé Auteurs : Tanveer Hussain, Auteur ; Azeem Ulllah, Auteur ; Muhammad Umar, Auteur ; Tanzeel Areeb, Auteur ; Zakariya Zubair, Auteur ; Rashid Masood, Auteur ; Qasim Zia, Auteur Année de publication : 2015 Article en page(s) : p. 474-479 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Déchirure (mécanique) Essais dynamiques Frottements (mécanique) Impression pigmentaire Liants Nontissés Nontissés -- Propriétés mécaniques Perméabilité Polypropylène Réticulation (polymérisation) Statistique Traction (mécanique) Index. décimale : 667.3 Teinture et impression des tissus Résumé : The aim of this study was to develop statistical models for the effect of binder concentration and curing temperature and time on the air permeability, tear strength, tensile strength, and crocking fastness of pigment-printed nonwoven polypropylene fabric. The design and analysis of the experimental work were carried out using Minitab® statistical software according to the Box–Behnken design of response surface methodology. Models were successfully developed. It was found that binder concentration improves the wet crocking and tensile strength while having a negative impact on all other responses. Increase in curing temperature and time affects the fabric tear strength negatively but has a positive effect on wet crocking fastness and fabric tensile strength. It could be concluded that pigment prints of good dry crocking fastness may be obtained on polypropylene nonwovens without deterioration in the mechanical strength and air permeability to a commercially unacceptable level. However, further work is required to improve the wet crocking fastness properties. Note de contenu : - EXPERIMENTAL : Fabric - Pigment printing - Testing - Statistical analysis - RESULTS AND DISCUSSION : Fabric air permeability - Crock fastness - Fabric tensile strength - Fabric tear strength - SCANNING ELECTRONMICROSCOPY DOI : 10.1111/cote.12178 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12178 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25117 [article]

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