Enhanced PAA bleaching of cotton by incorporating a cationic bleach activator / Pavla Krizman Lavric in COLORATION TECHNOLOGY, Vol. 123, N° 4 (2007)  

[article]  inCOLORATION TECHNOLOGY > Vol. 123, N° 4 (2007) . - p. 230-236 Titre : Enhanced PAA bleaching of cotton by incorporating a cationic bleach activator Type de document : texte imprimé Auteurs : Pavla Krizman Lavric, Auteur ; Franci Kovac, Auteur ; Petra Forte Tavčer, Auteur ; Peter Hauser, Auteur ; David Hinks, Auteur Année de publication : 2007 Article en page(s) : p. 230-236 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : Peracetic acid is a well-known alternative to hydrogen peroxide as a bleaching agent for cotton. In this study, a novel cationic bleach activator, N-[4-(triethylammoniomethyl)benzoyl]butyrolactam chloride, was used in combination with peracetic acid to investigate the enhancement of cotton bleaching efficiency. The effects of temperature, pH and concentrations of activator and peracetic acid on the bleaching performance were studied using a statistical design of experiment. Adding activator to a peracetic acid bleaching bath improved the resultant whiteness of the substrate and at optimal conditions produced less fibre damage than when peracetic acid was used alone. In addition, the bleaching performance of both peracetic acid and hydrogen peroxide in the presence of activator was compared. In the absence of activator, the peracetic acid performance was considerably superior to a conventional hydrogen peroxide bleach system in which no bleach activator is present. However, addition of activator to the hydrogen peroxide bath increased the whiteness to a level comparable to peracetic acid. DOI : 10.1111/j.1478-4408.2007.00088.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00088.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3523 [article]

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Review of retail store lighting : implications for colour control of products / David Hinks in COLORATION TECHNOLOGY, Vol. 127, N° 2 (2011)  

[article]  inCOLORATION TECHNOLOGY > Vol. 127, N° 2 (2011) . - p. 121-128 Titre : Review of retail store lighting : implications for colour control of products Type de document : texte imprimé Auteurs : David Hinks, Auteur ; Renzo Shamey, Auteur Année de publication : 2011 Article en page(s) : p. 121-128 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Lumière visible Magasins -- Eclairage Sources de lumière Index. décimale : 621.32 Eclairage Résumé : Lighting variables directly impact all areas of colour science. Lighting is of critical concern to the effective and consistent control of the perceived colour of all products. It is therefore important that all stakeholders involved in managing a commercial supply chain, including product design, colour standards development, manufacture and point of sale, work to understand and control the lighting environment during each stage of a product’s life cycle. New examples of lighting variability in a small and large US retail chain store are presented to illustrate key concepts. Some of the recent published work on retail lighting is reviewed, as well as some of the likely future directions of retail lighting in terms of environmental and technology development. Note de contenu : - Key light sources - Does variability in retail lighting impact sales ? - Disconnection between store design and colour management - Lighting measurements - Assessment of the area lighting in a small store - Assessment of the lighting of a large retail chain store - Future developments DOI : 10.1111/j.1478-4408.2011.00286.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2011.00286.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12226 [article]

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Towards automation of colour/weave selection in Jacquard designs: model verification through visual assessment / Kavita Mathur in COLORATION TECHNOLOGY, Vol. 124, N° 1 (2008)  

[article]  inCOLORATION TECHNOLOGY > Vol. 124, N° 1 (2008) . - p. 48-55 Titre : Towards automation of colour/weave selection in Jacquard designs: model verification through visual assessment Type de document : texte imprimé Auteurs : Kavita Mathur, Auteur ; R. Alan Donaldson, Auteur ; David Hinks, Auteur ; Abdel-Fattah M. Seyman, Auteur Année de publication : 2009 Article en page(s) : p. 48-55 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : A geometric model combined with a colour model to predict the colour contribution of each precoloured yarn in terms of colour attributes of each area of a Jacquard pattern was developed. To validate the predicted calculations colorimetric data), a visual assessment experiment was conducted to evaluate the difference between predicted and the actual colour appearance of the woven pattern. The results from the psychophysical evaluation of the woven samples and their predicted colour values showed high correlation between the predicted and experimental data. Therefore, the model has potential to eliminate subjective evaluations and reduce prototype sample production by automating the process of weave ⁄ colour simulation. DOI : 10.1111/j.1478-4408.2007.00121.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00121.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3139 [article]

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