Disperse red dye

A disperse dye and monoazo technology, applied in the field of red disperse dyes, can solve the problems of small pH adaptability range, low product strength, easy fading, etc., and achieve strong washing fastness, strong light fastness, and wide pH adaptability range Effect
CN101570648BActive Publication Date: 2013-11-06LEPING SAFELY PHARMA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
LEPING SAFELY PHARMA
Publication Date
2013-11-06

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Abstract

The invention relates to a disperse red dye, mainly containing a monoazo compound according to the right formula: wherein, R is methyl, ethyl and methoxypropyl; X is hydrogen, chlorine, nitro and methoxyl; Y is hydrogen, chloride, nitro and benzensulfonate; Z is hydrogen, chlorine, methyl, methoxyl and nitro. The monoazo compound is prepared by the following steps: adding amino compounds in hydrochloric acid medium, processing diazotation with sodium nitrite and coupling the product of diazotation and pigment red intermediate in alkali liquor. The invention has the advantages that the dye has very strong light fastness, strong washing fastness and sublimation fastness, is insusceptible to sweat stains and friction and can be apllicable to a wide PH value range.
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Description

technical field

[0001] The invention relates to a disperse dye, in particular to a red disperse dye. Background technique

[0002] The disperse dyes required for polyester dyeing should have the following characteristics: high strength, high color fastness, better leveling and lifting rate; currently the red disperse dyes recommended by foreign dye suppliers are C.I.167 and disperse red C.I.R167 , The product strength is low, when dyeing polyester fibers, the amount of dyestuff is large, the fastness is poor, it is easy to fade, and the PH adaptability range is small, so it is urgent to improve. Contents of the invention

[0003] The invention provides a red disperse dye, which overcomes the above-mentioned defects in the prior art.

[0004] In order to achieve the above-mentioned purpose of the invention, the technical scheme adopted in the present invention is: a kind of red disperse dye mainly comprises the monoazo compound of following formula,

[0005]

[0006] I...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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