Preparation method for navy blue or black disperse dye

A disperse dye, navy blue technology, applied in the field of preparation of navy blue or black disperse dyes, can solve the problems of lack of washing fastness and sublimation fastness, etc.

Active Publication Date: 2014-10-08
SHANGHAI ANOKY GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For disperse dyes, products with conventional fastness requirements are still widely used in the market, such as disperse navy blue EXN-SF and disperse navy blue EXN-SF, whic

Method used

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  • Preparation method for navy blue or black disperse dye
  • Preparation method for navy blue or black disperse dye
  • Preparation method for navy blue or black disperse dye

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0093] Example 1

[0094] Take 2 grams of original dye A1 shown in formula (I), 8 grams of A18, 5 grams of original dye B1 shown in formula (II), 7.5 grams of B30, and original dye C6 shown in formula (III) 12.5 grams, take 15 grams of the original dye D3 shown in formula (IV), then add 67 grams of dispersant MF, 8 grams of sodium lignosulfonate, and 153 grams of water for dispersion treatment with a sand mill, and then spray-dried to obtain The dye composition of the present invention.

Example

[0095] Examples 2 to 27

[0096] According to the preparation method of Example 1, according to the data shown in Table 5, at least one dye A, at least one dye B, at least one dye C, at least one dye D and dispersant MF, sodium lignosulfonate were respectively mixed Mixing with water, sanding and dispersing, and spray drying to obtain finished disperse dyes. Among them, the structural formulas of dyes A, B, C, and D defined by each substituent are shown in Tables 1 to 4.

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Example Embodiment

[0107] Example 28

[0108] Take 2.5 grams of the disperse dyes prepared in Examples 1 to 27 and disperse them in 500 ml of water to become a dye suspension, absorb 20 ml of water to mix with 80 ml of water, adjust the pH of the dye bath with acetic acid to be 4 to 5, and heat up to 70 ° C. At the same time, put 5 grams of polyester fiber cloth for dyeing, raise the temperature from 70°C to 130°C within 30 minutes, keep the temperature for 50 minutes, cool down to below 90°C and drain for cleaning. Then put the cloth swatch into 100 ml of reducing cleaning solution containing 1 g / L caustic soda and 3 g / L hydrosulfite for cleaning at 80°C for 20 minutes. According to the national standard GB / T2397-2003, the lifting power of the disperse dyes prepared in Examples 1 to 27 was measured, and the national standards GB / T3921-2008, GB / T3920-2008, GB / T8427-2008, and GB / T5718-1997 were used to test their resistance. Washing, rubbing, light fastness and sublimation fastness. The test re...

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Abstract

The invention discloses a preparation method for a navy blue or black disperse dye. The preparation method for the navy blue or black disperse dye includes: mixing one or more of dye A shown as formula (I), one or more of dye B shown as formula (II), one or more of dye C shown as formula (III) and one or more of dye D shown as formula (IV), then conducting grinding dispersing in an additive and water, and carrying out spray drying; or, subjecting the one or more of dye A shown as formula (I), one or more of dye B shown as formula (II), one or more of dye C shown as formula (III) and one or more of dye D shown as formula (IV) to grinding dispersing in the additive and water and spray drying respectively, then and performing mixing. The disperse dye prepared by the invention has the advantages of high dye-uptake, good deep dyeing property, excellent elevating power, excellent color fastness, and good level dyeing property. (formula (I), formula (II), formula (III), formula (IV)).

Description

technical field [0001] The invention relates to the field of fine chemicals, in particular to a method for preparing navy blue or black disperse dyes. Background technique [0002] Monoazo-type disperse dyes occupy an important position in the dyeing and printing of hydrophobic fibers, especially polyester fiber products, because of their simple synthesis process, low price, complete chromatogram, good application and fastness performance, and are widely used. Disperse dyes. [0003] In recent years, with the enhancement of people's awareness of environmental protection and health, consumers have higher and higher requirements for the color fastness level and ecological performance of textiles. For disperse dyes, products with conventional fastness requirements are still widely used in the market, such as disperse navy blue EXN-SF and disperse navy blue EXN-SF, which are generally composed of C.I. disperse blue 291:1, C.I. Black EXN-SF, these dyes are still lacking in wash...

Claims

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Application Information

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IPC IPC(8): C09B67/38D06P1/18D06P3/54
Inventor 赵敏燕美芳韩伟鹏
Owner SHANGHAI ANOKY GRP
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