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Dispersed dye mixture and application thereof

A technology of disperse dyes and mixtures, which is applied in the field of sub-dye, which can solve the problems of poor light fastness of dyes, achieve excellent rubbing fastness and washing fastness, good compatibility, and save costs

Active Publication Date: 2013-05-22
HANGZHOU JIHUA JIANGDONG CHEMICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the light fastness of dyes with 2,4-dinitroaniline structure is poor, the invention provides a mixture of disperse dyes. The invention uses 2,4-dinitroaniline to synthesize dyes, and through compounding The method of synergy solves the above-mentioned major problems that the industry has always avoided, greatly reduces the cost of color matching dyes, and at the same time can obtain dye compositions with good dyeing depth and excellent light fastness of dyes, which improves economic benefits

Method used

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  • Dispersed dye mixture and application thereof
  • Dispersed dye mixture and application thereof
  • Dispersed dye mixture and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] a) 8 grams of the following formula (Ia) dye:

[0038]

[0039] and 9 grams of a dye of formula (Ib):

[0040]

[0041] and 8.2 g of a dye of formula (Im):

[0042]

[0043] and 8.4 g of a dye of formula (IIa):

[0044]

[0045] Mix the (Ia), (Ib) and (Im) components of component A with the (IIa) component of component B to make disperse dye mixture 1, then use 112 ml of water and 14.4 g of dispersant MF in sand mill Grind together in the machine for 3 hours, and then spray dry (inlet temperature 130°C, outlet temperature 60°C) to obtain a powder (about 50 grams) that is a solid dye product 1 made of disperse dye mixture 1. The dye product 1 is easy to disperse into the water.

Embodiment 2～33

[0047] As shown in Table 1, mix the components of component A with the components of component B to make disperse dye mixtures 2~33, and then mix them together with the water used in Table 1 and the additives used in the sand mill Grind in medium for 4 hours, and then spray dry (inlet temperature 130°C, outlet temperature 60°C) to obtain powder (about 50 grams) that is solid dye product 2~33 made of disperse dye mixture 2~33.

[0048] Table 1

[0049]

[0050]

[0051]

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PUM

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Abstract

The invention relates to the technical field of dispersed dyes. In order to solve the problem that the dyes having a 2,4-dinitraniline structure are all poor in light fastness, the invention provides a dispersed dye mixture which is prepared by the step of mixing component A and component B, wherein the weight percentage of the component A is 10-92%. The 2,4-dinitraniline is used for synthesizing the dye so that the big problem which is always evaded in the industry is solved in a compounding and synergic way; as a result, a dye composition which is good in deep dyeing effect and excellent in light fastness can be obtained while the cost of the color matching dyes is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of disperse dyes, in particular to a disperse azo dye mixture and its application. Background technique [0002] 2,4-Dinitroaniline is often used as the diazo component of light-colored disperse dyes such as red or brown. The reason is that although the nitro group is a strong electron-withdrawing group, the adjacent nitro group will be reduced to a sub- The nitro group and the hexacyclic structure generate azo oxide compounds with nitroso groups in the adjacent position through intramolecular photooxidation. The latter is more likely to undergo further photochemical reactions, resulting in poor light fastness of dyes with this structure. Therefore, the conventional method is to introduce an electron-withdrawing group at the 6-position of the benzene ring to improve the light fastness of the dye, but this causes high raw material costs and reduces economic benefits. Therefore, most dye companies avoid using...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09B67/38D06P1/18D06P1/19D06P3/54
CPCD06P1/18D06P3/54C09B67/0051D06P1/19
Inventor 孙岩峰陈美芬简卫汪雪松
Owner HANGZHOU JIHUA JIANGDONG CHEMICAL CO LTD
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