Advances in the dyeing and finishing of technical textiles by M. L. Gulrajani PDF

By M. L. Gulrajani

Using dyes and finishes has an important influence at the aesthetic attraction and performance of technical textiles. Drawing on key study, Advances within the dyeing and completing of technical textiles info vital advances during this box and their diversity of functions. half one experiences advances in dyes and colourants, together with quite a few practical dyes, the results they are often used to create and laws concerning their use. half is going directly to examine completing strategies, similar to using enzymes, nanotechnology and speciality polymers.

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In such a process dyes and antibacterial finishing chemicals are present in a single bath. There have been attempts to incorporate antibacterial functions into the dye molecule itself so that additional finishing may not be necessary. Cationic anthraquinone dyes such as those shown in Fig. 2b and c have been synthesized and evaluated for this purpose [60]. Several such analogous dyes have been reported [61–63]. Antimicrobial cationic anthraquinone dyes with improved hydrolytic stability represented by the structures in Fig.

The degradation process [130] involves catalyzing reductive cleavage of the azo group using NAD(P)H as an electron donor by the Pseudomonas functioning as azoreductase. Degradation of azo dyes using various anaerobic bacteria has also been widely reported [131–136]. However, azo dyes are considered to be essentially non-biodegradable under aerobic conditions. I. Acid Red 88 [137]. 2 Approach towards biodegradable azo dyes Effluents containing lignin and modified lignin from pulp or papermaking processes are known to be degraded by the white rot fungi Phanerochaete chrysosporium [138].

M. R. ), Pigment Handbook, vol. I, 2nd edn, John Wiley & Sons, New York, 1998, p. 829. [12] R. Maisch, M. Weigand, Pearl Luster Pigments, Verlag Moderne Industrie, Landsberg/Lech, Germany, 1991. [13] R. Glausch, M. Kieser, R. Maisch, G. Pfaff, J. Weitzel, in: U. ), Special Effect Pigments, Vincentz Verlag, Hannover, Germany, 1998. [14] G. Pfaff, Chem. unserer Zeit. 31 (1997) 6. [15] K. M. Shau, J. Sugahara, Merck Patent GmbH, Eur. Patent 0763573, 1995. [16] S. Teaney, G. Pfaff, K. Nitta, Eur. Coat.

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