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Production method of PU (polyurethane) peeling leather fabric

A production method and fabric technology, applied in the processing of textile materials, removal of liquid/gas/steam with squeeze rollers, textiles and papermaking, etc., can solve the problems of poor product quality, rough surface, poor quality, etc. Achieve better product quality and lighter weight

Inactive Publication Date: 2013-05-08
PENGCHENG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the dry direct coating method is simpler to manufacture than the wet coating method, and the manufacturing cost is relatively lower, the quality of the PU peeling leather fabric produced by it, such as moisture permeability and air permeability, is not as good as that of the wet coating method.
In addition to the tedious steps, the existing wet coating process mainly has the following disadvantages: 1. The base fabric has not been reasonably screened and selected, so that the quality of the products produced by it is not good
2. The material ratio of the resin material of the substrate layer and the polyurethane slurry of the fabric layer is not reasonable enough, so that the quality of the products produced (mainly the characteristic indicators of weight, softness, breathability, moisture permeability, and non-swelling surface) are not good enough. good
3. There are deficiencies in the treatment process of influent solidification and water washing, so that the quality of the products produced by it is not good

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

[0046] The production method of the PU peeling leather fabric of the present embodiment comprises steps:

[0047] (1) Select the base fabric and roll it up for use. Choose a base fabric with a water-repellent performance of 2.5 and a separation surface of 0.13 kg / cm.

[0048] (2) Apply the prepared resin material evenly on the above-mentioned base cloth, then enter the water tank to solidify, squeeze and wash with water, and carry out shaping and drying to form the base material. The coagulation treatment of the water inlet tank includes sequentially entering the pre-coagulation tank filled with clean water and entering the coagulation tank filled with 12% dimethylformamide (DMF) for coagulation. The water entry angle of the coagulation treatment of the water inlet tank is 48°. Strictly control the water entry angle between 48°. The water entry angle will eventually affect the smoothness of the surface of the PU peeling leather fabric. The coagulation time should be kept at 1...

Embodiment 2

[0051] The production method of the PU peeling leather fabric of the present embodiment comprises steps:

[0052] (1) Select the base fabric and roll it up for use. A base fabric with a water-repellent performance of 3.2 and a separation surface of 0.07 kg / cm was selected.

[0053] (2) Apply the prepared resin material evenly on the above-mentioned base cloth, then enter the water tank to solidify, squeeze and wash with water, and carry out shaping and drying to form the base material. The coagulation treatment of the water inlet tank includes sequentially entering the pre-coagulation tank filled with clean water and entering the coagulation tank filled with 12% dimethylformamide (DMF) for coagulation. The water entry angle of the coagulation treatment of the water inlet tank is 40°. Strictly control the water entry angle between 40°-50°. The water entry angle will eventually affect the smoothness of the surface of the PU peeling leather fabric. The coagulation time should be...

Embodiment 3

[0056] The production method of the PU peeling leather fabric of the present embodiment comprises steps:

[0057] (1) Select the base fabric and roll it up for use. Choose a base fabric with a water-repellent performance of 3.5 and a separation surface of 0.10 kg / cm.

[0058] (2) Apply the prepared resin material evenly on the above-mentioned base cloth, then enter the water tank to solidify, squeeze and wash with water, and carry out shaping and drying to form the base material. The coagulation treatment of the water inlet tank includes sequentially entering the pre-coagulation tank filled with clean water and entering the coagulation tank filled with 10% dimethylformamide (DMF) for coagulation. The water entry angle of the coagulation treatment of the water inlet tank is 50°, and the water entry angle is strictly controlled between 40°-50°. The water entry angle will eventually affect the smoothness of the surface of the PU peeling leather fabric. The coagulation time shoul...

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 a method for industrially producing a fabric, in particular to a production method of a PU (polyurethane) peeling leather fabric. The production method comprises the following steps: (1) selecting the base fabric and reeling the base fabric for later use; (2) uniformly coating the prepared resin material on the base fabric, then solidifying the resin material in a water tank and carrying out setting and drying through extruding and washing to form the substrate; and (3) uniformly coating the prepared polyurethane pulp on coated release paper, then laminating the release paper on the substrate when the release paper is 80% dry and separating the polyurethane fabric layer from the release paper after absolutely drying the polyurethane pulp on the release paper again. The quality of the PU peeling leather fabric produced by the method is better than that of the PU peeling leather fabrics produced by the existing production methods and the PU peeling leather fabric can serve as various processed and laminated underlayer oxhide.

Description

technical field [0001] The invention relates to a method for industrially producing fabrics, in particular to a production method for PU peeled leather fabrics. Background technique [0002] People are beginning to pay more and more attention to environmental protection. Green is synonymous with environmental protection, which means development and sustainable survival. It is also synonymous with future society. It is hope and goal. Because of this, in today's advocacy of environmental protection and energy saving, people have also begun to develop PU (polyurethane) peeling fabrics to replace animal leather, so as to avoid harm to wild animals and damage to the natural environment. [0003] The existing production methods of PU peeling leather fabrics are mainly divided into two types: dry direct coating method and wet coating method. Although the dry direct coating method is simpler to manufacture than the wet coating method, and the manufacturing cost is relatively lower,...

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 Patents(China)
IPC IPC(8): D06N3/12D06B15/00D06B15/02C08L75/04C08K5/42C08K5/20
Inventor 吴新民
Owner PENGCHENG IND