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Producing method of PU divert film

A production method and film technology, applied in chemical instruments and methods, lamination auxiliary operations, lamination devices, etc., can solve the problems that imitation leather cannot be used for synthetic leather, hand feeling, appearance without real leather effect, etc.

Active Publication Date: 2008-06-25
ZHEJIANG HEXIN NEW MATERIAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The film made by the above method has no microporous structure inside, and the feel and appearance have no real leather effect, so it cannot be used to make artificial leather synthetic leather

Method used

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  • Producing method of PU divert film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A. Impregnated water repellent formula:

[0030] 100 parts of pure water;

[0031] Water-repellent agent RF-5020 (30% solid content) 3 parts.

[0032] B. Wet slurry formula:

[0033] Polyether, polycarbon type polyurethane resin (model HX-3025A) 100 parts;

[0034] 50 parts of DMF solvent;

[0035] Solvent colorant JQ-512 3 parts;

[0036] Wood powder (model FD600 / 30) 5 parts.

[0037] C. Dry slurry process formula:

[0038] Top coat:

[0039] 100 parts of polycarbonate polyurethane resin;

[0040] Solvent (DMF60%, MEK40%) 10 parts;

[0041] 15 parts of colorant;

[0042] Leveling agent 1 part.

[0043] Primer:

[0044] 100 parts of polycarbonate polyurethane resin;

[0045] Solvent (DMF25%, MEK75%) 10 parts;

[0046] 10 parts of colorant;

[0047] Leveling agent 1 part.

Embodiment 2

[0049] A. Impregnated water repellent formula:

[0050] 100 parts of pure water;

[0051] Water-repellent agent RF-5020 (solid content 30%) 10 parts.

[0052] The prescription of B and C is with embodiment 1.

Embodiment 3

[0054] A. Impregnated water repellent formula:

[0055] 100 parts of pure water;

[0056] Water-repellent agent RF-5020 (30% solid content) 3 parts.

[0057] B. Wet slurry formula:

[0058] 30 parts of polyester polyurethane resin (model HX-7060AHV);

[0059] 70 parts of polyester polyurethane resin (model HX-7025BHV);

[0060] 50 copies of DMF;

[0061] 2 parts of solvent-based colorant RW500J;

[0062] Wood powder (model FD600 / 30) 5 parts.

[0063] C. Dry slurry process formula:

[0064] Top coat:

[0065] 100 parts of polyester polyurethane resin (HX-8030);

[0066] Solvent (DMF83%, MEK17%) 50 parts;

[0067] 10 parts of colorant;

[0068] Leveling agent 1 part.

[0069] Primer:

[0070] 100 parts of polyester polyurethane resin (HX-930);

[0071] Solvent (DMF30%, MEK70%) 40 parts;

[0072] 10 parts of colorant;

[0073] Leveling agent 1 part.

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Abstract

The invention relates to a method for preparing a PU transfer membrane, which comprises that: (a) water-poking treatment is applied to plain woven oxford cloth; (b) a wet-process polyurethane (PU) coating is plated on the plain woven oxford cloth; (c) a PU dry-process transferring coating with a leather grain is compounded on the wet-process polyurethane coating; (d) the plain woven oxford cloth is stripped and the PU transfer membrane is prepared. The water-poking treatment for the oxford cloth reduces the adhesive force between the PU transfer membrane and the oxford cloth; thereby the purpose of stripping is achieved effectively. Hand feel, flexibility and permeability of the membrane are improved by a microspore structure inside the wet-process polyurethane coating. The dry-process transfer coating is a PU coating with a leather grain, thus increasing the effect of leather imitation. The PU transfer membrane prepared by the method can be used as materials for car interior decoration such as an attaching leather membrane for a panel mesa. The PU transfer membrane can also be compounded with such substrates as underlayer oxhide, micro fiber leather, etc. to the surface of which the PU wet-process coating is hardly applied, thus the PU transfer membrane is manufactured into imitating leather with good leather effect.

Description

technical field [0001] The invention relates to a method for making a PU transfer film, which belongs to the field of plastic film production technology. Background technique [0002] Existing plastic films, including TPU (thermoplastic polyurethane) films, are generally produced by calendering, extrusion, blow molding, etc., and are made after cooling and shaping. They are used as inner and outer layer materials of composite films and are used in various foods. , soup stock and packaging film for daily necessities, etc., composite materials for textiles, etc. The film made by the above method has no microporous structure inside, has no real leather effect in hand feeling and appearance, and cannot be used to make artificial leather synthetic leather. Contents of the invention [0003] The present invention aims to propose a method for making a PU (polyurethane) transfer film, which can produce a PU transfer film with a microporous structure inside, a leather effect in ha...

Claims

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Application Information

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IPC IPC(8): B32B37/02B32B37/15B32B38/06B32B38/10B29C41/24B29C41/34
Inventor 许志沈玉美任立鸣汪旗方福强顾海云
Owner ZHEJIANG HEXIN NEW MATERIAL CO LTD
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