Effect of atmospheric pressure plasma treatment on the desizing and subsequent colour fading process of cotton denim fabric / C. W. Kan in COLORATION TECHNOLOGY, Vol. 128, N° 5 (2012)  

[article]  inCOLORATION TECHNOLOGY > Vol. 128, N° 5 (2012) . - p. 356-363 Titre : Effect of atmospheric pressure plasma treatment on the desizing and subsequent colour fading process of cotton denim fabric Type de document : texte imprimé Auteurs : C. W. Kan, Auteur ; C. W. M. Yuen, Auteur Année de publication : 2012 Article en page(s) : p. 356-363 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Décoloration Désencollage Jeans Plasma à pression atmosphérique Un plasma à pression atmosphérique (ou plasma à PA ou plasma froid) est le nom donné à une catégorie spéciale de plasma pour lequel la pression approche celle de l’atmosphère. Le plasma à pression atmosphérique marque une nette différence avec le plasma basse et haute pression. En effet, contrairement à ces derniers aucune enceinte de traitement n'est nécessaire. Ce type de plasma peut donc être utilisé directement sur ligne de production, évitant ainsi l'utilisation de vide qui est extrêmement onéreuse. Index. décimale : 667.3 Teinture et impression des tissus Résumé : In this article, the performance of atmospheric pressure plasma treatment in the desizing of grey cotton denim fabric followed by an enzymatic colour fading process was studied. Four atmospheric pressure plasma processing parameters, namely, treatment time, ignition power, reactive gas (oxygen) concentration and jet distance were considered for desizing. In order to investigate the optimum conditions (based on weight change) for atmospheric pressure plasma treatment, an orthogonal array testing strategy was used. The optimum conditions for atmospheric pressure plasma treatment in this study were: treatment time, 5 s/mm; ignition power, 160 W; oxygen concentration, 1%; and jet distance, 3 mm. The level of importance of atmospheric pressure plasma processing parameters based on the orthogonal array testing strategy analysis was in the order: jet distance > ignition power > oxygen concentration > treatment time, and the effect of each processing factor is also discussed. In addition, the desizing effect induced by atmospheric pressure plasma treatment was compared with conventional enzyme desizing treatment. The resultant performance properties were also compared. After conducting desizing with atmospheric pressure plasma treatment, the cotton denim fabric was subjected to an enzymatic colour fading process. The colour fading effect was found to be more significant when compared with the conventional enzymatic colour fading process. Note de contenu : - EXPERIMENTAL : Denim fabric - Atmospheric plasma treatment on denim fabric - Enzyme desizing - Enzymatic colour fading process (cellulase treatment) - Measurement of weight change - Performance properties - Measurement of colour - Surface morphology - X-ray photoelectron spectroscopy analysis - Contact angle and wetting time measurement - RESULTS AND DISCUSSIONS : Optimum conditions for atmospheric pressure plasma treatment - Effect of jet distance - Effect of ignition power - Effect of oxygen concentration - Effect of treatment time - Verifying the optimum conditions - Surface morphology - X-ray photoelectron spectroscopy analysis - Contact angle and wetting time measurement - Performance properties - K/S value - CIE colour coordinates DOI : 10.1111/j.1478-4408.2012.00388.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2012.00388.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15803 [article]

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Effect of enzyme treatment and dyeing on the mechanical properties of linen / C. W. Kan in COLORATION TECHNOLOGY, Vol. 125, N° 5 (2009)  

[article]  inCOLORATION TECHNOLOGY > Vol. 125, N° 5 (2009) . - p. 269-276 Titre : Effect of enzyme treatment and dyeing on the mechanical properties of linen Type de document : texte imprimé Auteurs : C. W. Kan, Auteur ; C. W. M. Yuen, Auteur ; Y. L. Lam, Auteur Année de publication : 2009 Article en page(s) : p. 269-276 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : In this paper, different concentrations of cellulase enzyme were used for treating linen fabrics. The pretreated linen fabrics were dyed using a bifunctional reactive dye at various concentrations. The effect of enzyme treatment, together with the dyeing process on the low-stress mechanical properties of the linen fabric, was then investigated. The low-stress mechanical properties were assessed quantitatively, including the tensile, shearing, bending, compression and surface properties of the enzyme-treated and dyed linen fabrics. The results revealed that the enzyme treatment with subsequent dyeing could alter these properties to a greater extent, depending predominantly on the concentration of enzyme used. DOI : 10.1111/j.1478-4408.2009.00206.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2009.00206.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6862 [article]

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Effect of reactive dyeing on the UV protection affected by knitted fabric made from different types of cotton fibre / C. W. Kan in COLORATION TECHNOLOGY, Vol. 132, N° 2 (04/2016)  

[article]  inCOLORATION TECHNOLOGY > Vol. 132, N° 2 (04/2016) . - p. 114-120 Titre : Effect of reactive dyeing on the UV protection affected by knitted fabric made from different types of cotton fibre Type de document : texte imprimé Auteurs : C. W. Kan, Auteur ; C. H. Au, Auteur Année de publication : 2016 Article en page(s) : p. 114-120 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants réactifs 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 végétales Peignage (fibres textiles) Le peignage consiste à paralléliser les fibres et à ne conserver que les plus longues, tout en retirant l'air contenu entre les fibres. Le fil obtenu est lisse et brillant, solide mais moins doux. Protection contre le rayonnement ultraviolet Teinture -- Fibres textiles Tricot Index. décimale : 667.3 Teinture et impression des tissus Résumé : In this study, 100% cotton knitted fabrics made from combed cotton and combed pima cotton were dyed with reactive dye, with different dye concentrations. Colour properties such as CIE L*a*b* values as well as dyeing uniformity of the dyed fabrics were measured. The relationships between colour properties and the ultraviolet protection afforded by cotton knitted fabrics were investigated. Experimental results revealed that dye concentration is the most important factor. In addition, only L* values have a direct mathematical relationship with the ultraviolet protection factor; a* and b* values and dyeing uniformity were not found to have a significant correlation with ultraviolet protection factor values. Meanwhile, knitted fabric made from combed cotton fibre has better ultraviolet protection performance than fabric made from combed pima cotton fibre. Note de contenu : - EXPERIMENTAL : Materials - Combined scouring and bleaching of cotton knitted fabric - Reactive dye dyeing - Ultraviolet protection factor measurement - CIE L*a*b* measurement - RESULTS AND DISCUSSION : Relationship between dye concentration and ultraviolet protection factor - Relationship between fibre type and ultraviolet protection factor - Relationship between colour values and ultraviolet protection factor - Relationship between dyeing levelness and ultraviolet protection factor DOI : 10.1111/cote.12201 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12201 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25854 [article]

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Enhancing textile ink-jet printing with chitosan / C. W. M. Yuen in COLORATION TECHNOLOGY, Vol. 123, N° 4 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 4 (2007) . - p. 267-270 Titre : Enhancing textile ink-jet printing with chitosan Type de document : texte imprimé Auteurs : C. W. M. Yuen, Auteur ; S. K. A. Ku, Auteur ; C. W. Kan, Auteur ; P. S. R. Choi, Auteur Année de publication : 2007 Article en page(s) : p. 267-270 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : Following on from previous research, the possibility of using chitosan in preparing the pretreatment print paste for textile ink-jet printing was investigated but the final colour was not as good as expected. In this study, chitosan was applied separately on cotton fabric for ink-jet printing. A two-bath method was proposed and it was confirmed that a better colour yield was achieved with this method. However, the use of chitosan reduced the tensile strength of the ink-jet printed fabric slightly. DOI : 10.1111/j.1478-4408.2007.00094.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00094.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3529 [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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Technical study of the effect of CO2 laser surface engraving on the colour properties of denim fabric / C. W. Kan in COLORATION TECHNOLOGY, Vol. 126, N° 6 (2010)  

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