Micro-fiber knitted fabric synthetic leather and manufacturing method thereof

A technology of microfiber and knitted fabrics, applied in knitting, weft knitting, warp knitting, etc., which can solve the problems of superfine fiber synthetic leather usage and dosage limitations, poor color fastness and hand feeling, and incomplete dyeing, etc. Achieve the effects of rich patterns, good elasticity, good wrinkle resistance and air permeability

Active Publication Date: 2010-01-20
山东瑞恒纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main shortcoming of the superfine fiber synthetic leather produced in the market is that most of the superfine fiber synthetic leather is based on non-woven fabrics, focusing on simulating the inner structure of animal skin, while ignoring the colorful, ultra-thin, rich fabric appearance. Requirements for elasticity, deformation resistance and diversity of clothing; and there are still problems such as uneven dyeing, incomplete dyeing, poor color fastness and hand feeling
Due to the production technical characteristics of nonwoven fabrics, the microfiber synthetic leather based on nonwoven fabrics cannot meet these special requirements, which limits the use and amount of microfiber synthetic leather in the clothing industry.

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
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Sea-island superfine fiber production process: the "sea" component water-based polyester and the "island" component polyamide are composite-spun at a weight ratio of 20%:80% to make 1-3 denier Short fibers are spun into yarns with a fineness of 90S by using spinning technology;

[0038](2) base cloth making process: the yarn that step (1) is made is first dyed, warp knitting is carried out after dyeing, and knitting into multi-color layer thickness is 0.5mm base cloth;

[0039] (3) Polyurethane impregnation process: the knitted base fabric obtained in step (3) is impregnated with a colored polyurethane impregnating solution with a concentration of 40%, and then solidified by a coagulant, rolled dry and scraped dry on the surface to obtain a semi-finished synthetic leather product ;

[0040] (4) Removal of "sea" components: the semi-finished synthetic leather is subjected to alkali reduction treatment to dissolve the "sea" components in the sea-island microfibers, a...

Embodiment 2

[0043] (1) Sea-island superfine fiber production process: the water-based polyester of the "sea" component and the polyester of the "island" component are composite-spun at a weight ratio of 80%: 20%, and made into 0.1-0.5 denier Sea-island microfiber filament;

[0044] (2) base fabric making process: the island-in-the-sea type superfine fiber filaments made in step (1) are first dyed, then weft-knitted after dyeing, and knitted into a single-color base fabric with a thickness of 0.2mm;

[0045] (3) Polyurethane impregnation process: the knitted base fabric obtained in step (3) is first subjected to weight reduction treatment, then impregnated with a colored polyurethane impregnating solution with a concentration of 25%, and then solidified by a coagulant, rolled dry and surface Scrape and dry to obtain semi-finished synthetic leather;

[0046] (4) Removal of "sea" components: reduce the amount of benzene in the semi-finished synthetic leather, dissolve the "sea" components i...

Embodiment 3

[0049] (1) Sea-island microfiber manufacturing process: The "sea" component polyethylene and the "island" component polyurethane are blended at a weight ratio of 50%:50% to make a sea-island superfine fiber of 0.6-0.8 denier. Fine short fibers are spun into 60S yarns by using spinning technology;

[0050] (2) base cloth making process: the yarn and conductive fibers made in step (1) are weft-knitted and knitted into a base cloth with a thickness of 1.0mm;

[0051] (3) Polyurethane impregnation process: the knitted base fabric obtained in step (3) is impregnated with a 32% primary color polyurethane impregnating solution, then coagulated with a coagulant, rolled dry and scraped dry on the surface to obtain a synthetic leather semi-finished product ;

[0052] (4) The process of removing "sea" components: use 85-90°C hot toluene to dissolve the "sea" components in the semi-finished synthetic leather products, and then wash and dry them to obtain the single filament fineness 0.0...

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
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Abstract

The invention relates to the technical fields of micro-fiber knitted fabric synthetic leather synthetic leather base fabrics, especially relates to a micro-fiber knitted fabric synthetic leather of which the micro-fiber knitted fabrics are base fabrics and a manufacturing method thereof. The base fabrics of the micro-fiber knitted fabric synthetic leather of the invention are sea-island type micro-fiber knitted fabrics, the thickness of which is 0.03-3.0mm, and the structure of which is warp knitting or weft knitting; the base fabrics have one layer or two layer or more than two layers between which are formed by knitting, the color is homochromy or polychrome, the base fabrics also contain soaking elastic porous polyurethane which accounts for 10-65% of the total weight of the base fabrics, 25-40% is preferred, and at least one surface is suede or elastic porous polyurethane coating.

Description

technical field [0001] The invention relates to the technical field of superfine fiber synthetic leather and synthetic leather base cloth, in particular to a superfine fiber synthetic leather with superfine fiber knitted cloth as the base cloth and a manufacturing method thereof. Background technique [0002] Microfiber synthetic leather is composed of microfiber base cloth and polyurethane. In the base fabric structure, the non-woven fabric with its three-dimensional structure network creates conditions for synthetic leather to catch up with natural leather in terms of base materials. The ultra-fine fibers are three-dimensionally cross-linked together to play the role of skeleton and support, forming a fabric similar to genuine leather. The structure of collagen fibers. Polyurethane is distributed around the fibers, which makes the entire synthetic leather base fabric form a whole, and has many functions, and has many circular and needle-shaped foam structures, and the ove...

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
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14D04B1/16D04B21/00D06B9/00
Inventor 范德强姚忠山
Owner 山东瑞恒纺织有限公司
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