摘要:
The present invention relates to a process for providing a bleached look in the colour density of the surface of dyed fabric, especially cellulosic fabric such as denim, comprising use of a phenol oxidizing enzyme such as a peroxidase or a laccase, a hydrogen peroxide source and an enhancing agent represented by formula (I).
摘要:
Methods for the deep shade dyeing of melamine fiber-containing textile articles include bringing an undyed melamine fiber-containing textile article into contact with a dye bath containing a dyestuff and an acid donor at a pH of less than about 4.0 and an elevated dyeing temperature greater than about 100°C for a time sufficient to dye the textile article with minimal loss of melamine fibers due to acid hydrolysis. Most preferably, the textile article or articles to be dyed is placed into the dye bath at ambient temperature, and thereafter the dye bath containing the textile article or articles to be dyed is heated to the elevated dyeing temperature, for example, at a rate of between about 0.5 to about 2.0°C per minute. Suitable dyes include non-complexed acid dyes or acid dyes complexed with a metal (e.g., iron, cobalt, copper, aluminum or any transition metal). Suitable acid donors include butyrolactones, ethylene glycol monoformates and ethylene glycol diformates. The textile article may be formed entirely of melamine fibers or may be in the form of a blend of melamine fiber with at least one other type of fiber (e.g., aramid fibers).
n 1 oder 2, Kat ⊕ das Äquivalent eines Kations, Me Kupfer oder Nickel, X einen Rest der Formel CO-O oder SO₂-O und Y Vinyl oder einen Rest der Formel C₂H₄-Q, worin Q für eine unter alkalischen Reaktionsbedingungen abspaltbare Gruppe steht, bedeuten und der Ring A gegebenenfalls substituiert ist und benzoanelliert sein kann, der Ring B substituiert und gegebenenfalls benzoanelliert ist und der Ring C gegebenenfalls substituiert ist, deren Verwendung zum Färben oder Bedrucken von Hydroxygruppen oder Stickstoffatome aufweisenden organischen Substraten sowie neue Hydrazone.
摘要:
The present invention relates to a process for the bichromatic or the trichromatic dyeing or printing of hydroxy-group-containing or nitrogen-containing organic substrates with dye mixtures and also to such dye mixtures and hydroxy-group-containing or nitrogencontaining organic substrates dyed or printed therewith.
摘要:
Dye mixtures comprising a reactive dye having at least one structural unit of formula (1) together with a reactive dye of formula (2), wherein (Q1)0-3 and (Q2)0-3 each independently of the other denote from 0 to 3 identical or different substituents selected from the group halogen, C1-C4alkyl, C1-C4alkoxy, carboxy and sulfo, Z1 and Z2 are each independently of the other a fibre-reactive radical, at least one fibre-reactive radical being contained in the dye of formula (1) and the dye of formula (2) containing at least one fibre-reactive radical Z1 or Z2, are suitable for dyeing cellulosic or nitrogen-containing fibre materials.
摘要:
The present invention relates to a process for providing a bleached look in the colour density of the surface of dyed fabric, especially cellulosic fabric such as denim, comprising use of a phenol oxidizing enzyme such as a peroxidase or a laccase, a hydrogen peroxide source and a phenothiazine or phenoxazine enhancing agent represented by formula (I).
摘要:
A process for producing a black colorant which comprises treating finely powdered amino sugar, protein or polyamide with a naphthoquinone derivative of general formula (1); a cosmetic containing a black colorant thus produced; and a process for coloring a base material with this colorant. In the said formula, R1 represents hydrogen, hydroxy, halogen, α or β; R2 represents hydrogen or hydroxy; R3 represents alkyl, alkenyl, or hydroxyalkyl; and n is 1 or 2.