A dry dyeing method for superfine fiber synthetic leather without dyeing waste liquid

A technology of superfine fiber and dyeing method, which is applied in the direction of dyeing method, printing, printing device, etc. It can solve the problems of difficulty in meeting market requirements, restricting product development, and single product variety, so as to improve wet rubbing fastness and improve dyeing Effects of fastness and high molecular weight

Active Publication Date: 2018-09-18
SHAANXI UNIV OF SCI & TECH
View PDF4 Cites 0 Cited by
  • 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; A method and a combination of the technical advantages of (4) and (5), also reflects the technical defects of (4) and (5)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Two three-plate printing machines in series are used as dyeing equipment, and the superfine fiber synthetic leather base cloth is dyed by roller coating printing; the specific dyeing method is as follows:

[0028] 1) The superfine fiber synthetic leather base cloth passes through the first three-plate printing machine, and at the first printing position and the second printing position, the emulsified dye is transferred to the superfine fiber synthetic leather base through the transfer action of the printing roller. On both sides of the cloth, the third printing position is squeezed by the printing roller and the support roller to make the dye completely penetrate, and then pass through the oven and dry at 120°C for 10 minutes;

[0029] Wherein, the superfine fiber synthetic leather base cloth is an island-fixed superfine fiber synthetic leather base cloth.

[0030]The emulsifying dye is prepared by the following method: in parts by weight, 10 parts of dye, 7 parts of e...

Embodiment 2

[0036] Two three-plate printing machines in series are used as dyeing equipment, and the superfine fiber synthetic leather base cloth is dyed by roller coating printing; the specific dyeing method is as follows:

[0037] 1) The superfine fiber synthetic leather base cloth passes through the first three-plate printing machine, and at the first printing position and the second printing position, the emulsified dye is transferred to the superfine fiber synthetic leather base through the transfer action of the printing roller. On both sides of the cloth, at the third printing position, the dye is completely infiltrated by the extrusion of the printing roller and the support roller, and then passed through the oven, and dried at 130°C for 7 minutes;

[0038] Wherein, the superfine fiber synthetic leather base cloth is non-island-fixed superfine fiber synthetic leather base cloth.

[0039] The emulsifying dye is prepared by the following method: in parts by weight, 20 parts of dyes,...

Embodiment 3

[0045] Two three-plate printing machines in series are used as dyeing equipment, and the superfine fiber synthetic leather base cloth is dyed by roller coating printing; the specific dyeing method is as follows:

[0046] 1) The superfine fiber synthetic leather base cloth passes through the first three-plate printing machine, and at the first printing position and the second printing position, the emulsified dye is transferred to the superfine fiber synthetic leather base through the transfer action of the printing roller. Both sides of the cloth, in the third printing position, pass the pressing action of the printing roller and the support roller to make the dye completely penetrate, and then pass through the oven and dry at 150 ° C for 5 minutes;

[0047] Wherein, the superfine fiber synthetic leather base cloth is a pie-shaped superfine fiber synthetic leather base cloth.

[0048] The emulsifying dye is prepared by the following method: in parts by weight, 13 parts of dyes...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a superfine fiber synthetic leather dry dyeing method free of dyeing wastewater. A microfiber synthetic leather base cloth passes through a first three-edition printing machine; at a first printing position and a second printing position, through transfer effect of a printing roller, a dye emulsion is transferred to both sides of the superfine fiber synthetic leather base cloth; at a third printing position, through the extrusion effect of a printing roller and a supporting roller, the dye fully penetrates, and dries. The microfiber synthetic leather base cloth passes through passes through a second three-edition printing machine; at a first printing position and a second printing position, through transfer effect of a printing roller, a fixing agent is transferred to both sides of the superfine fiber synthetic leather base cloth; and at a third printing position, through the extrusion effect of a printing roller and a supporting roller, the fixing agent full penetrates and dries. The method realizes uniform deep dyeing, and strong surface coloration; the dyed superfine fiber synthetic leather has color wet rubbing fastness reaching more than grade 3.5, dry rub fastness reaching more than 4.0, and dye absorption rate reaching 100%; and the method does not produce any dyeing wastewater.

Description

technical field [0001] The invention relates to the technical field of ultrafine fiber polyurethane synthetic leather, in particular to a dry dyeing method for ultrafine fiber synthetic leather without dyeing waste liquid. 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 microfiber 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,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/00D06P5/08C08G18/08C08G18/10C08G18/61C08G18/65C08G18/34C08G18/32B41M1/38
CPCB41M1/38C08G18/0823C08G18/10C08G18/61C08G18/6541D06P1/0016D06P1/0032D06P5/08C08G18/348C08G18/3206
Inventor 马兴元段月王海军丁博
Owner SHAANXI UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap