A kind of superfine fiber synthetic leather special dye and preparation method thereof

A technology of superfine fiber and synthetic leather, applied in dyeing, organic dyes, textiles and papermaking, etc., can solve the problems of single product variety, limited product development, difficulty in meeting market requirements, etc., and achieve simple dyeing process and uniform dyeing Effect

Active Publication Date: 2016-05-04
河北永泰柯瑞特化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the components of microfiber nonwovens need to be dyed in the later stage, and the coloring in the early stage will limit the product development in the later stage, and the product variety is single, which is difficult to meet the market requirements; This method combines the technical advantages of (4) and (5), but also reflects the technical defects of (4) and (5)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A special dye for superfine fiber synthetic leather. The special dye is made of the following raw materials in parts by weight: 20 parts of weak acid dye, 30 parts of metal complex dye, 3 parts of dispersant, and 2 parts of pH regulator.

[0021] Preparation:

[0022] 1) In parts by weight, mix 20 parts of weak acid dye, 30 parts of metal complex dye, 3 parts of dispersant, and 2 parts of pH regulator to obtain a mixture;

[0023] 2) Grind the mixture into a powder with a mesh size greater than 600 through a grinder to obtain a special dye for superfine fiber synthetic leather.

[0024] Weak acid dye is a mixture of one or more weak acid dyes, such as weak acid yellow 4R, weak acid yellow RXL, weak acid red GW, weak acid red RLS, weak acid blue 2RL, weak acid blue 7BF, weak acid black BG , Weak acid black BNG. Metal complex dyes are a mixture of one or more 1:2 metal complex dyes, such as neutral yellow 2GL, neutral yellow GL, neutral red SG, neutral red SB, neutral r...

Embodiment 2

[0026] A special dye for superfine fiber synthetic leather. The special dye is made of the following raw materials in parts by weight: 50 parts of weak acid dye, 70 parts of metal complex dye, 15 parts of dispersant, and 6 parts of pH regulator.

[0027] Preparation:

[0028] 1) In parts by weight, mix 50 parts of weak acid dye, 70 parts of metal complex dye, 15 parts of dispersant, and 6 parts of pH regulator to obtain a mixture;

[0029] 2) Grind the mixture into a powder with a mesh size greater than 600 through a grinder to obtain a special dye for superfine fiber synthetic leather.

[0030] Weak acid dye is a mixture of one or more weak acid dyes, such as weak acid yellow 4R, weak acid yellow RXL, weak acid red GW, weak acid red RLS, weak acid blue 2RL, weak acid blue 7BF, weak acid black BG , Weak acid black BNG. Metal complex dyes are a mixture of one or more 1:2 metal complex dyes, such as neutral yellow 2GL, neutral yellow GL, neutral red SG, neutral red SB, neutral...

Embodiment 3

[0032] A special dye for superfine fiber synthetic leather. The special dye is made of the following raw materials in parts by weight: 35 parts of weak acid dye, 50 parts of metal complex dye, 9 parts of dispersant, and 4 parts of pH regulator.

[0033] Preparation:

[0034]1) In parts by weight, mix 35 parts of weak acid dye, 50 parts of metal complex dye, 9 parts of dispersant, and 4 parts of pH regulator to obtain a mixture;

[0035] 2) Grind the mixture into a powder with a mesh size greater than 600 through a grinder to obtain a special dye for superfine fiber synthetic leather.

[0036] Weak acid dye is a mixture of one or more weak acid dyes, such as weak acid yellow 4R, weak acid yellow RXL, weak acid red GW, weak acid red RLS, weak acid blue 2RL, weak acid blue 7BF, weak acid black BG , Weak acid black BNG. Metal complex dyes are a mixture of one or more 1:2 metal complex dyes, such as neutral yellow 2GL, neutral yellow GL, neutral red SG, neutral red SB, neutral re...

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PUM

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Abstract

The invention relates to a special dye for superfine fiber synthetic leather and a preparation method thereof. The invention adopts multi-component blending modification technology to prepare a special dye for superfine fiber synthetic leather, which is used for dyeing superfine fiber / polyurethane synthetic leather. The preparation method is as follows: in parts by weight, first mix 20-50 parts of weak acid dye, 30-70 parts of metal complex dye, 3-15 parts of dispersant, and 2-6 parts of pH regulator, and then pass through the grinder It can be ground into a powder larger than 600 mesh. This type of dye is used for dyeing microfiber synthetic leather, which can balance the coloring amount between superfine fiber and polyurethane components, and can automatically adjust the pH value required for dyeing during the dyeing process. The dyeing process is simple and uniform , The wet rubbing fastness of the dyed superfine fiber synthetic leather color can reach more than 3 grades, and the dry rubbing fastness can reach more than 4 grades.

Description

technical field [0001] The invention relates to a preparation method of a special dye for superfine fiber synthetic leather. 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. Among them, the superfine fiber non-woven fabric with three-dimensional network structure is used as the reinforcing material, and the superfine fiber synthetic leather obtained by impregnating polyurethane is close to the microstructure in terms of internal microstructure, appearance texture, physical properties and people's wearing comfort. Made of natural leather. According to statistics, as of 2012, the annual production capacity of China's superfine fiber synthetic leather is about 95 million square meters, and the actual annual output is about 75 million square meters. More than 90% of the world's...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/22C09B67/42D06P1/39D06P1/10D06P1/46D06P1/673D06P3/24
Inventor 房永法王亚菊马兴元
Owner 河北永泰柯瑞特化工有限公司
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