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Effect of a standard colorimetric observer on the reconstruction of reflectance spectra of coloured fabrics / Ali Shams Nateri in COLORATION TECHNOLOGY, Vol. 124, N° 1 (2008)  

[article]  inCOLORATION TECHNOLOGY > Vol. 124, N° 1 (2008) . - p. 14-18 Titre : Effect of a standard colorimetric observer on the reconstruction of reflectance spectra of coloured fabrics Type de document : texte imprimé Auteurs : Ali Shams Nateri, Auteur Année de publication : 2009 Article en page(s) : p. 14-18 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : Principal component analysis is a statistical and mathematical method in colour science, which can be used in compression and reconstruction of reflectance spectra. The goal of this work is to study the effect of standard colorimetric observers and illuminant source combinations on the reconstruction of reflectance spectra of textile fabrics. Several computational approaches were introduced by using different combinations of D65, A and D75 illuminant sources and 2° and 10° standard colorimetric observers in reconstruction reflectance spectra from corresponding tristimulus values. The obtained results indicate that the accuracy of the estimation depends on the type of illuminant sources, standard observers and number of principal components. The best result was achieved by a 2° standard observer with more than four principal components. The optimal numbers of principal components for achieving the imperceptible colorimetric accuracy are 4 and 6 for 2° and 10° standard observers, respectively. DOI : 10.1111/j.1478-4408.2007.00115.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00115.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3134 [article]

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Effect of inorganic salts on ferric oxalate-induced decomposition of CI Acid Black 234 under different weather conditions / Yongchun Dong in COLORATION TECHNOLOGY, Vol. 124, N° 1 (2008)  

[article]  inCOLORATION TECHNOLOGY > Vol. 124, N° 1 (2008) . - p. 19-26 Titre : Effect of inorganic salts on ferric oxalate-induced decomposition of CI Acid Black 234 under different weather conditions Type de document : texte imprimé Auteurs : Yongchun Dong, Auteur ; Kuixiao Li, Auteur ; Rong Qi, Auteur ; Min Yang, Auteur ; Qiufang Wang, Auteur ; Luchun He, Auteur Année de publication : 2009 Article en page(s) : p. 19-26 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : In this study, sodium chloride and sodium sulphate were used for investigating their effects on photocatalytic decomposition of a triazo acid dye, CI Acid Black 234, used widely for the coloration of leather and wool products by the Feiii-oxalate complexes/hydrogen peroxide system under different weather conditions, respectively. Moreover, the photocatalytic degradation and mineralisation of CI Acid Black 234 was also examined by ultraviolet–visible spectrum and total organic carbon measurements. The results indicated that photocatalytic decoloration of CI Acid Black 234 was significantly limited in the presence of inorganic salt. Increasing the concentration of inorganic salt led to a lower decoloration percentage and kinetic reaction constant. The effect of inorganic salt on dye decomposition varied with solar light intensity. Sodium chloride exhibits a much stronger reduction effect on photocatalytic decoloration, degradation and mineralisation than sodium sulphate at similar reaction conditions, especially on a cloudy day. DOI : 10.1111/j.1478-4408.2007.00116.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00116.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3135 [article]

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Synthesis, spectral characterisation and antimicrobial activity of new disazo dyes derived from heterocyclic coupling components / Zeynel Seferoglu in COLORATION TECHNOLOGY, Vol. 124, N° 1 (2008)  

[article]  inCOLORATION TECHNOLOGY > Vol. 124, N° 1 (2008) . - p. 27-35 Titre : Synthesis, spectral characterisation and antimicrobial activity of new disazo dyes derived from heterocyclic coupling components Type de document : texte imprimé Auteurs : Zeynel Seferoglu, Auteur ; Nermin Ertan, Auteur ; Ebru Yilmaz, Auteur ; Güven Uraz, Auteur Année de publication : 2009 Article en page(s) : p. 27-35 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : Two series of new disazo dyes were prepared by diazotising 4,4'-diaminodiphenylsulphonamide and 4,4'-diaminodiphenylurea and coupling with 3-methyl-1-phenyl-pyrazoline-5-one, 2-methylindole, 8-hydroxyquinoline, 2-phenylindole, 1-methyl-2-phenylindole, 3-amino-1-phenyl-pyrazoline-5-one. These dyes were characterised by ultraviolet–visible, Fourier transform infrared, nuclear magnetic resonance spectroscopic techniques and elemental analysis. The spectral characterisation of the dyes was evaluated with respect to visible absorption properties in various solvents. The effects of acid and base on the visible absorption maxima of the dyes were also reported. In addition, the antimicrobial effect of the dyes was evaluated. DOI : 10.1111/j.1478-4408.2007.00117.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00117.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3136 [article]

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Bioscouring and bleaching of cotton with pectinase enzyme and peracetic acid in one bath / Polonca Presa in COLORATION TECHNOLOGY, Vol. 124, N° 1 (2008)  

[article]  inCOLORATION TECHNOLOGY > Vol. 124, N° 1 (2008) . - p. 36-42 Titre : Bioscouring and bleaching of cotton with pectinase enzyme and peracetic acid in one bath Type de document : texte imprimé Auteurs : Polonca Presa, Auteur ; Petra Forte Tavčer, Auteur Année de publication : 2009 Article en page(s) : p. 36-42 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : Acidic and alkaline pectinases have proved efficient for the scouring of cotton. Peracetic acid can be used as an alternative for the bleaching of cotton. As a result of similar conditions of activity, we decided to try to scour and bleach a cotton fabric with both agents simultaneously in a single bath. Prior to performing these experiments, using the viscometric method we proved that pectinases retained their activity in the presence of peracetic acid. We tried to improve the efficiency of the single-bath treatment with the addition of a chelator. Tetrasodium pyrophosphate, which does not deactivate pectinases, has proved an efficient chelator. The analyses of a cotton fabric treated in a single bath with acidic and alkaline pectinases confirmed the efficiency of such treatment. A sufficient quantity of wax and pectin was removed and, because of that, the absorbance of the treated fabric was improved. The damage to the cotton fibres was negligible and the degree of whiteness obtained was uniform and adequate for further dyeing. DOI : 10.1111/j.1478-4408.2007.00118.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00118.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3137 [article]

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Effect of corona discharge treatment on indigo dyed cotton fabric / Shirin Nourbakhsh in COLORATION TECHNOLOGY, Vol. 124, N° 1 (2008)  

[article]  inCOLORATION TECHNOLOGY > Vol. 124, N° 1 (2008) . - p. 43-47 Titre : Effect of corona discharge treatment on indigo dyed cotton fabric Type de document : texte imprimé Auteurs : Shirin Nourbakhsh, Auteur ; Mohammad Esmail Yazdanshenas, Auteur Année de publication : 2009 Article en page(s) : p. 43-47 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : The present study proposes new conditions for achieving the aged-look effect of denim. Indigo dyed cotton fabrics were treated by corona discharge at different power levels and number of passages. Colorimetric parameters of corona treatment were assessed by the CIE L*a*b* colorimetric system and the pH and colour fastness of samples were tested. The surfaces of dyed samples were studied by scanning electron microscopy and Fourier Transform–infrared ⁄ attenuated total reflectance (FTIR ⁄ ATR) analysis. Under the same conditions of corona treatment, the faded-look effect was reduced as the depth of dyeing was increased. Increasing the power and the number of passages increases L* and b* and decreases a* values. This indicates that samples become lighter and yellower but soaping can reduce yellowness. FTIR ⁄ ATR results show that indigo dye oxidises, and isatin and anthranilic acid are produced. The pH levels of corona-treated samples reduce as the power and number of passages increase. This acidification is in agreement with the results of FTIR ⁄ ATR analysis. DOI : 10.1111/j.1478-4408.2007.00119.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00119.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3138 [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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Functionalisation of lyocell. Part 2 : Synthesis of 6-p-aminoanilino-4-p- (B-sulphatoethylsulphonyl)anilino- 1,3,5-triazin-2(1H)-one / A. H. M. Renfrew in COLORATION TECHNOLOGY, Vol. 124, N° 1 (2008)  

[article]  inCOLORATION TECHNOLOGY > Vol. 124, N° 1 (2008) . - p. 56-61 Titre : Functionalisation of lyocell. Part 2 : Synthesis of 6-p-aminoanilino-4-p- (B-sulphatoethylsulphonyl)anilino- 1,3,5-triazin-2(1H)-one Type de document : texte imprimé Auteurs : A. H. M. Renfrew, Auteur ; I. Bates, Auteur ; Duncan A. S. Phillips, Auteur ; T. Rosenau, Auteur ; T. Tomic, Auteur ; J. Xu, Auteur Année de publication : 2009 Article en page(s) : p. 56-61 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : A new water-soluble monomeric agent for the aminisation of lyocell has been designed and synthesised. The agent, which contains a sulphatoethylsulphonyl group, an s-triazinyl keto–enol tautomeric system and a primary aromatic amine was prepared in acidic media, in good yield from cyanuric chloride, p-aminophenyl-b-sulphatoethylsulphone and p-phenylenediamine, via a triazinyl betaine intermediate. DOI : 10.1111/j.1478-4408.2007.00120.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00120.x/pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3140 [article]

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Effect of a cationising agent on the conventional reactive dyeing of cotton / M. Javaid Mughal in COLORATION TECHNOLOGY, Vol. 124, N° 1 (2008)  

[article]  inCOLORATION TECHNOLOGY > Vol. 124, N° 1 (2008) . - p. 62-65 Titre : Effect of a cationising agent on the conventional reactive dyeing of cotton Type de document : texte imprimé Auteurs : M. Javaid Mughal, Auteur ; M. Naeem, Auteur ; Ausaf Aleem, Auteur ; Rehana Saeed, Auteur ; Kamran Ahmed, Auteur Année de publication : 2009 Article en page(s) : p. 62-65 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : Cationisation of cotton is emerging as an effective tool that may help to solve the environmental problems associated with the dyeing of cotton with reactive dyes. The efficiency of the cationising agent CA200 has been investigated and was found to be more effective when compared with the usual method for reactive dyeing of cotton. Pretreatment of the cotton fabric with the cationising agent increases the rate of dyeing compared with the existing method of reactive dyeing. The colour yields, in terms of the Kubelka–Munk values as a function of the amount of dye fixed, showed that cationisation enhances the colour strength. It also improves the washing fastness, rubbing fastness and depth of shade. The positive environmental impact of this cationisation process is significant and the cationised cotton shows a similar fabric quality as with the normal dyeing process. DOI : 10.1111/j.1478-4408.2007.00122.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00122.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3141 [article]

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Textile coloration industry in India / Mangesh D. Teli in COLORATION TECHNOLOGY, Vol. 124, N° 1 (2008)  

[article]  inCOLORATION TECHNOLOGY > Vol. 124, N° 1 (2008) . - p. 1-13 Titre : Textile coloration industry in India Type de document : texte imprimé Auteurs : Mangesh D. Teli, Auteur Année de publication : 2009 Article en page(s) : p. 1-13 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : This review paper discusses the diversity of the textile sector in India, including its nature, the number of stakeholders and its effect on the overall national economy. It focuses on the significant role the coloration industry is expected to play in the near future, as this is the most problematic step in textile production with respect to profitability, planning and technology. While carrying out analysis of the textile and clothing industry, it also deals with the transformation the industry has undergone in the last two decades in terms of the selection of textile product mix in different regions of India from the point of view of profitability, the use of modern technology and selection criteria of colourants and specialised chemicals. These changes are viewed in respect of improved quality demands, measures undertaken to minimise the pollution level of the environment, and other related factors. In parallel, the growth of the dyestuff and speciality chemical industry, which has a direct relationship with this industry, is also discussed. It attempts to reflect upon the efforts of the Indian government in encouraging modernisation of the textile processing industry in terms of the Technology Upgradation Fund Scheme and other policy supports in relation to the response from the industry. Finally, the paper highlights the amount of human resource development needed to achieve the ambitious targets the government has put before the textile and clothing industry. DOI : 10.1111/j.1478-4408.2007.00114.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00114.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3142 [article]

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