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Dispersed blue dye composition

A technology of dye composition and disperse blue, applied in the direction of organic dyes, etc., can solve the problems of environmental pollution, lack of performance, low coloring rate, etc.

Inactive Publication Date: 2005-07-20
ZHEJIANG LONGSHENG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, disperse blue 56 also has its own insurmountable shortcomings: the dyeing rate is very low during fabric dyeing, which greatly increases the cost and causes serious environmental pollution; there is uneven dyeing when modern fast printing and dyeing methods are used to dye fabrics , this problem can only be solved by increasing the dyeing time
In order to solve these shortcomings of disperse blue 56, various countries have proposed various blue azo dyes as their substitutes, such as patents DE3347572, DE3023330 and DE3043184, but unfortunately the blue azo dyes described in the above patents are all Does not have the performance of completely replacing disperse blue 56

Method used

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  • Dispersed blue dye composition
  • Dispersed blue dye composition
  • Dispersed blue dye composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 56 former dyes of C.I. disperse blue 56 by weight, 12 grams of former dyes shown in formula (IV), 18 grams of former dyes shown in formula (V), 7 grams of former dyes shown in formula (VI), disperse Agent Reax 83A 65 grams, pure water 140 grams carry out micronization (do dispersion treatment) with sand mill together, then spray dry, obtain blue dye composition of the present invention.

Embodiment 2～12

[0020] According to the preparation method of Example 1, component A (disperse blue 56), component B and component C are blended according to the data shown in the following table 3 as the dye composition used in conjunction, wherein each See Table 1 and Table 2 for the structural formulas of disperse dyes defined by substituents.

[0021] Table 1

[0022]

[0023] R 1

[0024] Table 2

[0025]

[0026] C7

[0027] Example

Embodiment 15

[0029] Take 0.5 grams of the disperse dyes prepared in Examples 1 to 14 and disperse them in 500 milliliters of water, absorb 20 milliliters and mix them with 60 milliliters of water, adjust the pH of the dyeing bath to 5 with acetic acid, heat up to 70°C and put 2 grams of poly The polyester fiber cloth was dyed, and the temperature was raised from 70°C to 130°C within 30 minutes, kept for 40 minutes, and cooled to below 90°C to start sampling. The national standards GB / T3921-1997, GB / T3920-1997, GB / T8427-1998, GB / T5718-1997 were used to test the color fastness to washing, rubbing, light and sublimation respectively. The test results are shown in Table 4.

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Abstract

The present invention relates to one kind of disperse blue dye composition, and the disperse blue dye composition comprises dye A shown in expression (I), one or several kinds of dye B shown in expression (II), and one or several kinds of dye C shown in expression (III). When the disperse blue dye composite of the present invention is used in dyeing hydrophobic fiber material, especially polyester fiber material and acetate fiber material, the disperse blue dye composite has the features of high dyeing degree, high dye fastness, high build up, good level dyeing property, etc.

Description

(1) Technical field [0001] The present invention relates to an azo dye composition. (2) Background technology [0002] C.I. Disperse Blue 56 is recognized as an important blue disperse dye in the world, because it can not only obtain bright color and good light fastness in the dyeing of hydrophobic fibers (especially polyester fibers), which is also Other disperse dyes do not have the performance. However, disperse blue 56 also has its own insurmountable shortcomings: the dyeing rate is very low during fabric dyeing, which greatly increases the cost and causes serious environmental pollution; there is uneven dyeing when modern fast printing and dyeing methods are used to dye fabrics , this problem can only be solved by increasing the dyeing time. In addition, the dye bath is more sensitive to metal ions, especially copper ions, and the amount of pollution in the production process of this dye is extremely large. Therefore, it is also very important to reduce the applicatio...

Claims

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Application Information

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IPC IPC(8): C09B67/36C09B67/38
Inventor 阮伟祥宋瑜
Owner ZHEJIANG LONGSHENG GROUP
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