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Dispersed red dye composition

A technology of dye composition and disperse red, which is applied in the direction of organic dyes, etc., and can solve problems such as inability to meet dyeing needs

Active 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, with the development of new synthetic fibers and polyester microfiber textile fabrics, these dyes have been unable to meet higher dyeing requirements, especially in dyeing uptake, heat migration fastness, water fastness, and light fastness. , level dyeing

Method used

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  • Dispersed red dye composition
  • Dispersed red dye composition
  • Dispersed red dye composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] 30 grams of dye A shown in formula (III), 20 grams of dye B shown in formula (IV), 60 grams of dispersant Reax 83A, and 135 grams of pure water are micronized with a sand mill (doing dispersion treatment), Then spray dry to obtain the disperse red dye composition.

Embodiment 2～10

[0024] According to the preparation method of Example 1, the structures of dyes A and B defined by each substituent are shown in Table 1, and the dye composition is blended with dye A and dye B according to the metering data shown in Table 2.

[0025] Example

[0026]

Embodiment 11

[0028] Take 0.5 grams of the disperse dyes prepared in Examples 1 to 10 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 is dyed, and the temperature is raised from 70°C to 130°C within 30 minutes, kept at a temperature of 40 minutes, and the sample is taken when it is cooled to 90°C. The color fastness is measured by the national standard GB / T3921-1997, GB / T3920-1997, GB / T5718-1997. The test results are shown in Table 3.

[0029]

[0030] Example 4

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PUM

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Abstract

The present invention relates to one kind of disperse red dye composition, and the disperse red dye composition comprises dye A shown in expression (I) and dye B shown in expression (II). When the disperse red dye composition of the present invention is used in dyeing hydrophobic fiber material, especially polyester fiber material and polyamide fiber material, the disperse red dye composition has the features of high dyeing degree, high dye fastness, high build up, good level dyeing property, etc. The disperse red dye composition of the present invention is especially suitable for dyeing superfine polyester fiber material.

Description

(1) Technical field [0001] The invention relates to a disperse dye composition, in particular to a disperse red dye composition applied to dyeing hydrophobic fiber materials. (2) Background technology [0002] It is well known that azo disperse dyes can be used for dyeing synthetic or semi-synthetic hydrophobic fiber materials. However, with the development of new synthetic fibers and polyester microfiber textile fabrics, these dyes have been unable to meet higher dyeing requirements, especially in dyeing uptake, heat migration fastness, water fastness, and light fastness. , Level dyeing. For this reason, the development of a class of dyes or dye compositions with excellent dyeing performance and bright shade has become a hot topic in the dye industry. (3) Contents of the invention [0003] In order to overcome the deficiency of the existing disperse red dye dyeing performance, the invention provides a disperse red dye composition. [0004] The disperse red dye composit...

Claims

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Application Information

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IPC IPC(8): C09B67/38
Inventor 阮伟祥张云保
Owner ZHEJIANG LONGSHENG GROUP
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