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A kind of yellow acid dye composition and its dyeing application on fiber

A technology for acid dyes and dye compounds, which is applied to acid dye compositions and their dyeing application fields, can solve the problems of insufficient brightness, solubility and dye depth, influence popularization and application, etc., and achieve the effect of excellent dyeing improvement rate.

Active Publication Date: 2020-08-21
ARGUS SHANGHAI TEXTILE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are also deficiencies in vividness, solubility, and dyeing depth, which seriously affect its popularization and application.

Method used

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  • A kind of yellow acid dye composition and its dyeing application on fiber
  • A kind of yellow acid dye composition and its dyeing application on fiber
  • A kind of yellow acid dye composition and its dyeing application on fiber

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0064] The synthetic method of dyestuff 1-3 thus comprises the following operating steps:

[0065] Add 24.2 parts of 2,5-dichloro-4-aminobenzenesulfonic acid to 240ml of water, and add 30 parts of 30% hydrochloric acid, maintain the temperature at 0-5°C, add 23 parts of 30% sodium nitrite aqueous solution dropwise for diazotization Reaction, after the diazonium reaction is completed, add a small amount of sulfamic acid to eliminate a small amount of unreacted sodium nitrite.

[0066] Add 44.2 parts of 2-N,N-dibutylamino-4-(4'-sulfonic acid phenethylamino)-6-methylpyrimidine directly into the diazonium reaction liquid, adjust and maintain pH = 6 with aqueous sodium carbonate -7 for coupling reaction, the reaction temperature is 5-10°C.

[0067] After the coupling reaction is completed, filter and wash to obtain the dye I-3.

[0068] The synthetic reaction formula is:

[0069]

[0070] The general formula (I) represents the same kind of structural general formula or the sy...

Embodiment 1-10 and comparative example 1-2

[0077] The types of dyes and their dosages shown in Table 1 below were used to uniformly mix various dye components according to conventional methods in the art to prepare various yellow acid dye compositions of Examples 1-10 of the present invention.

[0078] "%" in Table 1 means % by weight, based on the total weight of the dye composition.

[0079] Component and component content thereof of the dye composition of table 1 embodiment 1-10

[0080]

[0081]

[0082] Two, the various test data of embodiment

[0083] Test objects: use the yellow acid dye compositions prepared in Examples 1-10 as dye compositions A-J, and use the yellow acid dye compositions prepared in Comparative Examples 1-2 as reference dyes X-Y.

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Abstract

The invention discloses a yellow acidic dye composition and an application thereof on dyeing fibers, and relates to an acidic dye composition and a dyeing application thereof. The yellow acidic dye composition comprises one or more compounds represented by the formula (I) and one or more compounds represented by the formula (II). The provided yellow acidic dye composition has the advantages of excellent dyeing rising rate, good level-dyeing property, strong permeability, and good dyeing fastness, and is capable of uniformly dyeing a whole sock.

Description

technical field [0001] The invention relates to an acid dye composition and its dyeing application, more specifically, it relates to a yellow acid dye composition and its dyeing application on fibers. Background technique [0002] The development of new yellow azo acid dyes with excellent dyeing performance and color fastness has always been an important research topic for current dye workers. [0003] We understand that azo acid dyes refer to azo dyes that contain sulfonic acid groups or carboxyl groups in the molecule, and at the same time have hydroxyl groups in the ortho position of the azo group on the aromatic ring. The synthesis of acid mordant dyes is similar to that of other acid dyes, except that the substituents of diazo components and coupling components are different. Azo dyes are a class of dyes containing an amino chromophore in their molecules. They are the most diverse dyes in synthetic dyeing cards, accounting for more than half of the output in dye indust...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/22C09B67/24D06P1/39D06P3/06D06P3/16D06P3/60
CPCC09B67/0046C09B67/0072D06P1/39D06P3/06D06P3/16D06P3/6008
Inventor 曾建平谢兵郑怡华
Owner ARGUS SHANGHAI TEXTILE CHEM