Alkali-resistant active dye composition
A technology of reactive dyes and compositions, which is applied in organic dyes, dyeing methods, textiles and papermaking, etc., can solve the problems of easy hydrolysis, increased cost, reduced coloring rate and performance, so as to improve alkali resistance and expand The effect of application range
Active Publication Date: 2015-07-15
TIANJIN DEK CHEM
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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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Embodiment 1
[0015] Get 100g active Yanlan KN-R, 2g of hydrosulfite (Na 2 S 2 o 4 ), the sodium lignosulfonate of 28g, 5.0g triethanolamine, after mixing uniformly, make the alkali-resistant reactive dye composition of the present invention, do alkali-resistant comparative test with the active brilliant blue KN-R of not adding printing and dyeing auxiliaries , the test result is: the alkali resistant reactive dye composition of the present invention just has precipitate after 110min when alkali resistance test is carried out, and the reactive brilliant blue KN-R that does not add printing and dyeing auxiliaries just has precipitate in 15min.
[0016] Reactive Yanlan KN-R used in the foregoing examples is produced by Tianjin Dekai Chemical Co., Ltd.
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The invention relates to an alkali-resistant active dye composition, which comprises the following components in part by weight: 100 parts of active brilliant blue KN-R (also called active brilliant blue KN-R), 2 parts of sodium hydrosulfite (Na2S2O4), 28 parts of sodium lignin sulfonate and 5 parts of triethanolamine. With the application of the alkali-resistant active dye composition, the alkali resistance of active brilliant blue KN-R under normal dyeing condition can be improved, and the application range can be enlarged, that is to say the pigment can also be used in cold pad batch dying.
Description
technical field [0001] The invention relates to the technical field of reactive dyes, in particular to an alkali-resistant reactive dye composition. 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 present invention is to overcome the deficien...
Claims
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IPC IPC(8): C09B67/24D06P1/38D06P1/673D06P1/642D06P1/46D06P1/62
Inventor 张兴华刘文祥王焕
Owner TIANJIN DEK CHEM