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Diaminoazobenzene type disperse dye and application thereof

An azodiphenylamine type, disperse dye technology, used in organic dyes, dyeing methods, textiles and papermaking, etc., can solve the problems of changes in fiber specific surface area, poor light fastness, etc. Excellent fastness and reproducibility

Active Publication Date: 2014-01-22
JIANGSU YABANG DYE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This also means that the polyester fiber is dyed under strong alkaline conditions, and the specific surface area of ​​the fiber has changed, which may be one of the reasons for the poor light fastness

Method used

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  • Diaminoazobenzene type disperse dye and application thereof
  • Diaminoazobenzene type disperse dye and application thereof
  • Diaminoazobenzene type disperse dye and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Referring to the examples in the invention patent GB1185174A, those skilled in the art can easily prepare dye monomers with structural formulas (a-1) and (a-2) by well-known methods.

[0054] (a-1)

[0055] (a-2)

[0056] Mix the two dye monomers (a-1) and (a-2) obtained in Example 1 with the diffusing agent. The mass ratio of the mixture is: dye monomer (dry product): dispersant MF: lignin sulfonate Sodium acid (85A) = 1:2:1, add appropriate amount of water and other surfactants, sand mill to a certain particle size, preferably less than 1 μm in particle diameter, and then spray dry to obtain commercial (a-1) formula Disperse dyes and (a-2) disperse dyes, wherein (a-1) formula disperse dyes are bright red on polyester fibers, and the maximum absorption wavelength λ in acetone MAX = 510nm; (a-2) formula disperse dye is carnelian on polyester fiber, the maximum absorption wavelength λ in acetone MAX = 528nm.

[0057] With reference to the examples in the inventi...

Embodiment 2

[0063] Referring to the examples in the invention patent GB1202984A, those skilled in the art can easily prepare dye monomers with structural formulas (b-1) and (b-2) by well-known methods. With reference to the commercialization method in Example 1 of the present invention, commercialized (b-1), (b-2) formula disperse dyes are obtained, wherein (b-1) formula disperse dyes are blue on polyester fibers, Maximum absorption wavelength λ in acetone MAX = 612nm; (b-2) formula disperse dye is blue on polyester fiber, and the maximum absorption wavelength λ in acetone MAX = 608nm.

[0064] (b-1)

[0065] (b-2)

[0066] Equally, with reference to the commercialization method in the embodiment in the invention patent GB1202984A and the embodiment 1 of the present invention, those skilled in the art can easily prepare the disperse dyes shown in the general formula of Table 3 with well-known methods.

[0067] table 3

[0068]

Embodiment 3

[0070] Referring to the examples in the invention patent GB1166347A, those skilled in the art can easily prepare dye monomers with structural formulas (c-1), (c-2), (c-3), (c-4) by well-known methods . With reference to the commercialization method in Example 1 of the present invention, (c-1), (c-2), (c-3), (c-4) formula disperse dyes can be obtained, wherein (c-1) formula disperse The dye is reddish-orange on polyester fibers, and has a maximum absorption wavelength λ in acetone MAX = 460nm; (c-2) formula disperse dye is red and orange on polyester fiber, and its maximum absorption wavelength in acetone is λ MAX = 452nm; (c-3) formula disperse dye is yellowish orange on polyester fiber, and the maximum absorption wavelength λ in acetone MAX = 434nm; (c-4) formula disperse dye is yellowish orange on polyester fiber, and its maximum absorption wavelength in acetone is λ MAX = 430nm.

[0071] (c-1)

[0072] (c-2)

[0073] (c-3)

[0074] (c-4)

[0075] Similarly, wi...

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Abstract

The invention discloses a diaminoazobenzene type disperse dye with a general formula (1) as shown in the specification. The diaminoazobenzene type disperse dye has the characteristics of bright shade, excellent dyeing performance and fastnesses and wide pH range. The diaminoazobenzene type disperse dye can be used for performing pretreatment and one-step one-bath dyeing on polyester, polyester superfine fibers and a blend fabric of polyester and cellulose fibers in a strong alkaline bath, performing same-pulp printing on a disperse / active dye of the blend fabric of polyester fibers and cellulose fibers, and performing one-step method alkaline burn-out printing on double-sided plush, non-inverted velvet and super-soft short floss type polyester fabrics.

Description

technical field [0001] The invention relates to the technical fields of fine chemical industry and textile printing and dyeing, in particular to a class of azodianiline disperse dyes and applications thereof. Background technique [0002] There are many types of yellow disperse dyes, such as disazo-type disperse yellow 23, which is banned because it is easy to decompose p-aminoazobenzene; nitrodiphenylamine-type disperse yellow 42, with good fastness, is suitable for For various fibers, the dyeing performance needs to be improved; quinoline-based Disperse Yellow 54 has a bright shade. In recent years, with the prohibition of Disperse Yellow 23, its usage is increasing. The above three disperse dyes can be colored under weak alkaline conditions, but are sensitive to strong alkali. [0003] [0004] [0005] Azodiphenylamine disperse dyes have the comprehensive characteristics of azo dyes and diphenylamine structures, so they have better dyeing performance and fastness,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09B67/38D06P1/18D06P3/54D06P3/26D06P3/42D06P3/85D06P3/872
Inventor 姚雷吴文燕郑冬松吴传龙朱亚伟
Owner JIANGSU YABANG DYE
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