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Production process of PU transfer coating leather

A production process and film sticking technology, which is applied in the field of PU leather, can solve the problems of cumbersome processing technology and high cost, and achieve the effects of improving physical properties, low cost, and improving tensile strength and tear strength

Active Publication Date: 2014-12-24
TONGXIANG LONGXIANG TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of leather fabric is affordable, easy to wash, easy to process, soft in luster, good in wear resistance and soft in hand, but the processing technology is relatively cumbersome, and the bottom surface is compounded with chemical fiber fabric or cotton cloth, and the cost is high.

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

[0032] A kind of production technique of PU film leather, it comprises the following steps:

[0033] (1) Prepare slurry. The slurry is divided into surface layer slurry and adhesive layer slurry. The surface layer slurry contains the following raw materials in parts by weight: 100 parts of one-component polyurethane resin, 45 parts of MEK, 8 parts of DMF, and 15 parts of toner; The layer paste contains the following raw materials in parts by weight: 100 parts of one-component polyurethane resin, 20 parts of TOL, 4 parts of DMF, 3 parts of accelerator, 8 parts of bridging agent, and 5 parts of toner;

[0034] (2) After splicing and unwinding, use high temperature-resistant, high-viscosity water-soluble paper tape to bond release paper rolls of specified length and type in sequence. The head of the release paper is cut straight without burrs, and the section is consistent with the release paper. The edge is vertical, and the grammage of the release paper is 160g / m 2 ;

[0035]...

Embodiment 2

[0051] A kind of production technique of PU film leather, it comprises the following steps:

[0052](1) Prepare slurry. The slurry is divided into surface layer slurry and adhesive layer slurry. The surface layer slurry contains the following raw materials in parts by weight: 100 parts of one-component polyurethane resin, 55 parts of MEK, 10 parts of DMF, 22 parts of color paste; The layer slurry contains the following raw materials in parts by weight: 100 parts of one-component polyurethane resin, 22 parts of TOL, 5 parts of DMF, 4 parts of accelerator, 9 parts of bridging agent, and 20 parts of color paste;

[0053] (2) After splicing and unwinding, use high temperature-resistant, high-viscosity water-soluble paper tape to bond release paper rolls of specified length and type in sequence. The head of the release paper is cut straight without burrs, and the section is consistent with the release paper. The edge is vertical, and the grammage of the release paper is 160g / m 2 ;...

Embodiment 3

[0070] A kind of production technique of PU film leather, it comprises the following steps:

[0071] (1) Prepare slurry. The slurry is divided into surface layer slurry and adhesive layer slurry. The surface layer slurry contains the following raw materials in parts by weight: 100 parts of one-component polyurethane resin, 65 parts of MEK, 12 parts of DMF, 25 parts of color paste; The layer paste contains the following raw materials in parts by weight: 100 parts of one-component polyurethane resin, 25 parts of TOL, 6 parts of DMF, 6 parts of accelerator, 10 parts of bridging agent, and 10 parts of toner;

[0072] (2) After splicing and unwinding, use high temperature-resistant, high-viscosity water-soluble paper tape to bond release paper rolls of specified length and type in sequence. The head of the release paper is cut straight without burrs, and the section is consistent with the release paper. The edge is vertical, and the grammage of the release paper is 160g / m 2 ;

[...

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Abstract

The invention provides a production process of PU transfer coating leather, belonging to the technical field of PU leather. The production process comprises the following steps: (1) preparing pulp; (2) unreeling paper; (3) coating primarily; (4) drying primarily; (5) cooling primarily; (6) coating secondarily; (7) drying secondarily; (8) cooling secondarily; (9) laminating; (10) pressing; (11) drying thirdly; (12) cooling thirdly; (13) stripping; (14) reeling; (15) tearing edge, trimming and checking out; (16) carrying out surface treatment; and (17) washing and drying. The PU transfer coating leather can achieve the good tensile strength and tearing strength under a condition that the bottom surface of the PU transfer coating leather is not composited with one-side fleece, the production cost is greatly reduced and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of PU leather, in particular to a production process of PU film leather. Background technique [0002] PU is the abbreviation of English poly urethane, and its chemical Chinese name is "polyurethane". PU leather is the skin of polyurethane. Now it is widely used in the decoration of bags, clothing, shoes, vehicles and furniture. It has been increasingly recognized by the market. Its wide application range, large quantity and variety are beyond the satisfaction of traditional natural leather. PU leather is divided into film leather, surface-coated leather, and color-coated leather according to its performance characteristics. PU film leather has the characteristics of rich colors, complete patterns, firmness and fullness, low cost, and high utilization rate. It is most suitable for the production of travel shoes and sports shoes. , sandals, casual shoes, fashion shoes, children's shoes. The research and de...

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): D06N3/14B32B37/02B32B37/26B32B37/10B32B38/16
Inventor 王飞龙
Owner TONGXIANG LONGXIANG TEXTILE
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