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Rapid dyeing method of liquid dye for suede ultrafine fiber synthetic leather

A technology of superfine fiber and liquid dyes, applied in the field of dyeing, can solve the problems of low dye absorption rate, poor dyeing fastness, and long dyeing time, and achieve high dye absorption rate, simple dyeing method, and less discharge of dyeing wastewater Effect

Active Publication Date: 2017-05-10
HUAFON MICROFIBER SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the technical field of superfine fiber synthetic leather, for the dyeing of suede superfine fiber synthetic leather, the single-component dyeing or multi-component dyeing method mainly used by high-temperature and high-pressure dyeing machines, due to the PA6 and The structure and performance of PU components are very different, and the absorption capacity of dyes is different, which leads to long dyeing time of this method, uneven appearance of leather, poor color fastness, non-washing resistance, low dye absorption rate, and dyeing wastewater treatment. difficulty
These problems have brought great pressure to the business

Method used

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  • Rapid dyeing method of liquid dye for suede ultrafine fiber synthetic leather
  • Rapid dyeing method of liquid dye for suede ultrafine fiber synthetic leather

Examples

Experimental program
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Effect test

Embodiment 1

[0022] In parts by weight, pour 1 part of liquid dye Ruby PB into a dry emulsifier, add 0.2 part of sulfated castor oil, 0.5 part of dispersant MF and stir evenly; then add 0.5 part of penetrant JRC and continue stirring ; Finally, add 50 parts of deionized water, stir until the emulsification is uniform, and obtain the dye water treatment solution. Put the filtered dye water treatment solution into a continuous padding tank, and control the base cloth with a liquid rate of 55% through one dipping and one rolling; dry at 130°C for 10 minutes, then cool and roll , You can get dyed superfine fiber synthetic leather.

Embodiment 2

[0024] In parts by weight, pour 1 part of liquid dye Sapphire Blue PR into a dry emulsifier, add 0.4 parts of Pingpingjia O-25, 0.25 parts of dispersant NNO and stir evenly; then add 0.3 parts of penetrant T and continue stirring ; Finally, add 80 parts of deionized water, stir until the emulsification is uniform, and obtain the dye water treatment solution. Put the filtered dye water treatment solution into a continuous padding tank, and control the liquid rate of the base fabric to 60% through one dipping and one rolling; dry it at 120°C for 15 minutes, then cool it and wind it up , You can get dyed superfine fiber synthetic leather.

Embodiment 3

[0026] In parts by weight, pour 1 part of liquid dye black PR into a dry emulsifier, add 1 part of sulfated castor oil, 0.25 part of dispersant CS, and stir well; then add 0.2 part of penetrant JRC, and continue stirring; Finally, add 100 parts of deionized water, stir until the emulsification is uniform, and obtain the dye water treatment solution. Put the filtered dye water treatment solution into a continuous padding tank, and control the base cloth with a liquid rate of 65% through one dipping and one rolling; dry at 110°C for 12 minutes, then cool and wind , You can get dyed superfine fiber synthetic leather.

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Abstract

The invention discloses a rapid dyeing method of a liquid dye for a suede ultrafine fiber synthetic leather. The method comprises the following steps: (1) dipping a reduced ultrafine fiber synthetic leather base fabric in a treatment fluid, and padding, wherein the treatment fluid comprises the following components in parts by weight: 1 part of liquid dye, 0.2-1 part of emulsifier, 0.25-0.5 part of dispersing agent, 0.2-0.5 part of penetrating agent and 50-100 parts of deionized water; and the liquid dye is a mixed solution of a metal complex dye and alcohol or butyl ester at a ratio of 1:2. According to the invention, the treatment fluid is a water-soluble dye solution having very strong permeability and can rapidly permeate the base fabric; a normal-temperature padding method can be used for dyeing; and the dyed ultrafine fiber leather has high dry / wet rubbing fastness and soaking fastness.

Description

technical field [0001] The invention relates to the technical field of synthetic leather, in particular to a dyeing method. Background technique [0002] Natural leather resources are limited, and the production process will produce relatively large pollution. The development of artificial synthetic leather with excellent performance has become the pursuit of human beings. Microfiber synthetic leather is a composite material composed of microfibers and polyurethane. It can resemble real leather in terms of internal microstructure, appearance texture and people's wearing comfort. The development of my country's microfiber synthetic leather industry has only been a few decades, and it has developed rapidly in recent years, but there are still some key technologies that have not been completely broken through, which has become a serious obstacle to the development of microfiber synthetic leather. The dyeing technology of fibrous synthetic leather is one of the bottleneck techno...

Claims

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Application Information

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IPC IPC(8): D06P1/36D06P1/613D06P1/62D06P1/56D06P1/46
CPCD06P1/36D06P1/46D06P1/56D06P1/6133D06P1/627
Inventor 胡雪丽胡忠杰孙向浩张其斌韩芹梁柱
Owner HUAFON MICROFIBER SHANGHAI
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