ugg milano The yield of azo dye Acid Red One impro

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Red single azo dyes to improve the yield of

trathermYellowP a 1345NT (CKC); KayalonFastYellowG (KYK); LumacelYellowG (LG): SeriplasYellowGD (YCL); SerisolFastYellowGD (YCL); SublaprintYellow70000 (HDC); SupracetFastYellowG (HDC); TertraneseYellowN a 2GLC (CKC) and so on. Well-known name as a solvent dyes are: ElbasolYellowG (HDC); KeyplastYellowGC (KEY): OpasYellow130 (KKK) and so on. Nippon Kayaku Company (KKK) 1979 年 special open day has been patented Zhao 56-38358 (1979), introduces a 4-amino-2-chloroaniline as a raw material, 2,[link widoczny dla zalogowanych], acetylation of a chlorine generating an acetyl-4 aniline, heavy nitride,[link widoczny dla zalogowanych], and the coupling of phenyl phenol generated dye for polyester dyeing, than C. I. Disperse Yellow 3 has better resistance to sublimation fastness and washing fastness (after finishing resin), available from strong yellow. Red single azo dyes to improve the yield of Sumitomo Chemical Company of Japan published patent at special open Zhao 56-97262 showed that diazotization of aromatic amine acid coupling with H acid,[link widoczny dla zalogowanych], in the thiourea and non-ionic surfactants conducted, can shorten the coupling time and improve yield. For example, diazotization of sulfanilic acid and H acid thiourea and C18H37N [(CH2CH20JH] 2 in the presence of at pH0.5 ~ 1.5,5 ~ 10 ℃ coupling 5 hours,[link widoczny dla zalogowanych], then sodium hydroxide and get a one-amino-2 a [(to a sulfonate phenyl) azo] benzoic acid to 8 for a one or two sulfonic acid trisodium salt of 3,6,[link widoczny dla zalogowanych], the yield of 92.6%. dye structure is: NaO3SHONH2SO3Na when the coupling, if not adding thiourea and C8H37N [(CHCH0) H], coupling for 12 hours, the yield has only 67.4%, if the use of urea instead of thiourea, coupled 5 hours, the yield is only 74. 6%. disperse dye mixture of disperse dyes with similar structures of polyester mixture with polyester dyeing, the dye mixture used could achieve better synergy effect on the dyeing and fastness properties conducive to improvement. According to the Japanese of the Japanese drug company to apply for Zhao 56-99257 special opening introduction to the following mixture of three dyes (mix ratio of 5:3:2) get red dye polyester blue; ... / CH2CH20 - ~ CH. ... N (CH2CH20 - ~) CH.. N-: b N: NNcHcH. cHcH: cHCH3 than the mixture of polyester dyed or C.I. C.I. Disperse Blue 82 Disperse Blue 106 has better resistance to sublimation fastness and moisture fastness. Disperse Orange SE -B's quality improvement Disperse Orange SE-B (C.I. Disperse Orange 13), also known as disperse orange country B, is a more important double-azo dyes. the dye in the \a product name, manufacturer throughout the seven countries, including India, the company has 5 production. in Jiangsu, Zhejiang, Hunan and other places there are a number of factory production. Disperse Orange SE-B from aniline diazotization, coupling with p-toluidine, and then diazotization, coupling with phenol in the system. structure is: <\ a / the dye is not only suitable for dyeing polyester and its blends, but also for cellulose acetate, nylon, acrylic, polyvinyl chloride fiber dyeing, can also be used in the coloring of plastics. The dye in the polyester on the Fast 6 ~ 7, perspiration and resistance to washing are all 5. The solvent orange dye and C.I. 52 for the same chemical structure.
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