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Blue alkali resistant active dye

A technology of reactive dyes and alkali resistance, which is applied in organic dyes, dyeing methods, textiles and papermaking, etc. It can solve the problems of easy hydrolysis, increased cost, and limited application range of alkali resistance.

Active Publication Date: 2011-11-23
TIANJIN DEK CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many blue reactive dyes currently on the market, but KN-R is widely used in the dye industry for its unique shade and application fastness, but its alkali resistance limits its application range. KN-R is widely used in conventional dyeing. That is, under the condition of alkali dyeing at 60°C, it is easy to be hydrolyzed, which reduces its performance such as color uptake, and also increases the cost virtually, and produces dyeing wastewater

Method used

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  • Blue alkali resistant active dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Get 100g Reactive Brilliant Blue KN-R, 2g of thiourea dioxide, and 30g of diffusing agent NNO, after the three materials are mixed uniformly, the alkali-resistant blue reactive dye of the present invention is prepared, and the reactive brilliant blue reactive dye without printing and dyeing auxiliary agent is obtained. Blue KN-R does the alkali-resistance contrast test, and the test result is: when the alkali-resistant blue reactive dye of the present invention carries out the alkali-resistance test, there is precipitate only after 90 minutes, and the reactive brilliant blue that does not add printing and dyeing auxiliaries KN-R has precipitates in 15 minutes.

Embodiment 2

[0020] Get 100g reactive brilliant blue KN-R, the sodium sulfide of 1g, and the diffusion agent NNO of 32g, 3.0g emulsifier A-20, after mixing uniformly, make alkali-resistant blue reactive dyestuff of the present invention, and do not add printing and dyeing aid The active Brilliant Blue KN-R of the agent is used for the alkali resistance contrast test, and the test results are: when the alkali resistant blue reactive dye of the present invention is carried out in the alkali resistance test, there is a precipitate after 100min, and no printing and dyeing auxiliary agent is added. The active Yanlan KN-R has precipitates within 10 minutes.

Embodiment 3

[0022] Get 100g active brilliant blue KN-R, the thiourea dioxide of 0.5g, and the diffusion agent NNO of 31.5g, 2.0g emulsifier C-125, after mixing uniformly, make alkali-resistant blue reactive dyestuff of the present invention, and do not add The reactive Brilliant Blue KN-R of printing and dyeing auxiliaries was tested for alkali resistance, and the test results were: when the alkali-resistant blue reactive dye of the present invention was tested for alkali resistance, there was no precipitate after 150 minutes, and no printing and dyeing was added. The active brilliant blue KN-R of the auxiliary agent has precipitates in 15 minutes.

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Abstract

The invention relates to a blue alkali resistant active dye, which comprises brilliant blue KN-R and a printing and dyeing auxiliary in a weight part ratio of 100:(25-40), wherein the printing and dyeing auxiliary comprises one or a mixture of two of a first auxiliary, a second auxiliary and a third auxiliary; the first auxiliary is one or a mixture of two of sodium sulfide, thiourea dioxide, sodium hydrosulfite and sodium sulfite; the second auxiliary is one or a mixture of two of a dispersing agent MF, a dispersing agent NNO, sodium lignin sulfonate and urea; and the third auxiliary is one or a mixture of two of an emulsifier OS-15, an emulsifier A-20, an emulsifier C-125 and triethanolamine. The alkali resistance of the brilliant blue KN-R under the conventional dyeing conditions is improved, and the application range of the brilliant blue KN-R is widened, namely the brilliant blue KN-R can be used in cold pad batch dyeing.

Description

technical field [0001] The invention relates to the technical field of reactive dyes, in particular to an alkali-resistant blue reactive dye. Background technique [0002] There are many blue reactive dyes currently on the market, but KN-R is widely used in the dye industry for its unique shade and application fastness, but its alkali resistance limits its application range. KN-R is widely used in conventional dyeing. That is, under the condition of alkali dyeing at 60°C, it is easy to be hydrolyzed and separated out, which reduces its performance such as color uptake, and also increases the cost virtually, and produces dyeing wastewater. The invention starts from adding printing and dyeing auxiliaries, improves the alkali resistance of KN-R under conventional dyeing conditions, and expands its application range, that is, it can also be used in cold pad-batch dyeing. Contents of the invention [0003] The purpose of the invention is to overcome the deficiencies in the pri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/24D06P1/38
Inventor 张兴华刘文祥王焕
Owner TIANJIN DEK CHEM
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