摘要:
Obtaining deep shades and substantially accelerating dyestuff absorption in the dyeing of aromatic polycarbonates with dispersion dyestuffs or developing dyestuffs by carrying out the dyeing process in the presence of an aliphatic, aromatic or mixed aliphatic aromatic carbonate.
摘要:
A method for processing textile fibers is provided. The method comprises: adding a plurality of raw materials for processing textile fibers into a plurality of kettles; preparing supercritical carbon dioxide; obtaining one or more natural plant dyes and one or more natural plant extracts from the plurality of raw materials, and dissolving the one or more natural plant dyes and the one or more natural plant extracts in the supercritical carbon dioxide; dyeing and functionally modifying the textile fibers simultaneously by using the supercritical carbon dioxide carrying a mixture of the one or more natural plant dyes and the one or more natural plant extracts; performing a post-process to recycle the supercritical carbon dioxide; and performing a cleaning process to clean the one or more natural plant dyes and one or more natural plant extracts.
摘要:
Dyestuff mixtures of at least two different dyestuffs of the general formula ##SPC1##In whichX = cn, no.sub.2 or alkylsulphonylY = hydrogen, methyl, ethoxy or methoxyR.sub.1 = hydrogen or alkylR.sub.2 = c.sub.1 -c.sub.4 -alkyl or an optionally substituted phenyl radical or phenylalkyl radicalAc = acyl.Using these mixtures for dyeing of polyester fibres deep clear blue dyeings with good general fastness properties are obtained.
摘要翻译:至少两种不同的通式为:X = CN,NO 2或烷基磺酰基Y =氢,甲基,乙氧基或甲氧基的化合物的染料混合物R1 =氢或烷基R2 = C1-C4-烷基或任意取代的苯基或苯基烷基 Ac =酰基。
摘要:
Azo compounds of low solubility in water and having the formula
WHEREIN R1 is chloro, bromo, cyano or acyl, R2 is cyano or nitro, R3 is alkyl or aryl optionally substituted with nonwater solubilizing substituents, and R7 is alkylene of two to four carbon atoms. These compounds are highly suitable as disperse dyes for dyeing and printing fibres, yarns and textiles whice consist of or contain synthetic or semi-synthetic organic substances of high molecular weight and hydrophobic character. The dyeings obtained are outstandingly fast to light, sublimation and wet treatments.
摘要:
A process for printing and continuous fixation of stabilized dyeing preparations forming azo dyestuffs and of reactive dyestuffs on textile materials containing cellulose or consisting exclusively of cellulose material, comprising a continuous working process of steaming the material printed with the dyeing preparations and reactive dyestuffs, for a short time for developing and fixing the azo dyestuffs using high concentrations of volatile acids with or without use of a counter-current operation method, and of treating then the material according to a known two-phase-fixation process for fixing the reactive dyestuffs and finishing it as usual by washing, soaping and rinsing as well as a process comprising the said very rapid fixation process of stabilized dyeing preparations forming azo dystuffs, by means of acid steam except for the use of reactive dyestuffs and for the use of the two-phase-fixation process which leads to dyeings of azo dyestuffs and of reactive dyestuffs of good fastenesses and brilliancy obtained in a very short time by means of a fully continuous process of fixing azo and reactive dyestuffs and of after-treatment the dyed material.
摘要:
A reactive disperse yellow dye is suitable for supercritical CO2 anhydrous dyeing. The reactive disperse yellow dye in has a parent of azo structure, and has monochlorometriazinyl groups thereon. The reactive disperse yellow dye can be used for supercritical CO2 anhydrous dyeing of cellulose fiber, protein fiber, chemical fiber and the blended fabrics thereof, and has good dyeing effect particularly for cotton-polyester blended products.