Alkaline discharge printing disperse dye, preparation method and applications

A technology for discharge printing and disperse dyes, which is applied in the field of alkaline discharge printing disperse dyes and its preparation, can solve the problems of environmental protection and high cost, and achieve the effects of low cost, stable performance and good discharge whiteness

Inactive Publication Date: 2015-12-23
上海贝通色彩科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the current discharge printing process of polyester flannelette mostly adopts the discharge printing process of processing tin reducing agent, but the cost is very high and it is not environmentally friendly.

Method used

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  • Alkaline discharge printing disperse dye, preparation method and applications
  • Alkaline discharge printing disperse dye, preparation method and applications
  • Alkaline discharge printing disperse dye, preparation method and applications

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053]Mix in a certain proportion according to the ratio in the above table, wherein the dispersant is formed by mixing sodium methylnaphthalene sulfonate formaldehyde condensate and sodium lignosulfonate in a mass ratio of 3:7, and then mix the above components evenly Add water for grinding, and spray-dry the slurry obtained by grinding. The spray-drying process conditions are: inlet temperature 130°C, outlet temperature 60°C, after drying, alkaline discharge printing disperse dyes with a particle size of 0.5um are obtained.

Embodiment 2

[0055] The difference between this embodiment and Example 1 is that the dispersant is formed by mixing sodium methylnaphthalenesulfonate formaldehyde condensate and sodium lignosulfonate in a mass ratio of 2:3; the process conditions of spray drying are: inlet temperature 125°C, the outlet temperature is 55°C, and after drying, the alkaline discharge printing disperse dye with a particle size of 0.5um can be obtained.

Embodiment 3

[0057] The difference between this embodiment and Example 1 is that the dispersant is formed by mixing sodium methylnaphthalenesulfonate formaldehyde condensate and sodium lignosulfonate in a mass ratio of 4:6; the process conditions of spray drying are: inlet temperature 128°C, the outlet temperature is 58°C, after drying, the alkaline discharge printing disperse dye with a particle size of 0.2um can be obtained.

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Abstract

The invention relates to the printing and dyeing field, and discloses an alkaline discharge printing disperse dye. The disperse dye is prepared from the following substances, by weight, 0-25% of compounds A, 10-90% of compounds B, 0-40% of compounds C, 0-35% of compounds D and 040% of compounds E, the balance being dispersants. The invention also discloses a preparation method for the above alkaline discharge printing disperse dye and applications. The provided disperse dye has a high white discharging degree, performances are stable, the cost is low, the preparation technology is stable, and good reappearance is achieved.

Description

technical field [0001] The invention relates to the field of printing and dyeing, in particular to an alkaline discharge printing disperse dye and a preparation method and application thereof. Background technique [0002] Alkaline discharge printing of polyester fabrics is a hot new technology developed in the mid-1980s abroad. It is to firstly fix the disperse dyes that can be destroyed by alkalis in the polyester fiber through high temperature and high pressure dyeing, and then print alkaline discharge dyeing pulp. Discharge dyeing technology under high temperature steaming conditions. As early as the mid-1970s, after the British ICI company developed PC-type disperse dyes containing carboxylate groups, it developed polyester fabric resist printing. The polyester fiber with a tight hydrophobic structure can destroy the fixed dye, and the destroyed dye inside the fiber is not easy to remove from the inside of the polyester fiber. The polyester fabric can only be dyed resi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09B67/38C09B67/36C09B67/04C09B67/06D06P1/18D06P1/62D06P1/50D06P3/54
Inventor 张彬肖卫华邱晓兰
Owner 上海贝通色彩科技有限公司
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