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Color changeable artificial leather, and preparation method and color changing method thereof

A color-changing and artificial leather technology, which is applied to textiles, papermaking, and fabric surface trimming, can solve the problems of artificial leather not being able to obtain permanent discoloration effects and unstable discoloration performance of artificial leather, and achieve the effect of simple method, easy application and good stability

Inactive Publication Date: 2015-10-14
FUJIAN POLYTECH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, according to paragraph 0031 of the above-mentioned patent specification, the color-changing performance of the artificial leather obtained by the above-mentioned patent is not stable, and when it is under the action of external stresses such as stretching, jacking up, bending, and folding, the deformed parts will show color changes. , when the external force is removed, the color of the leather surface will return to its original state
Therefore, the artificial leather obtained by the above-mentioned patent cannot obtain the permanent discoloration effect after pressure change

Method used

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  • Color changeable artificial leather, and preparation method and color changing method thereof

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preparation example Construction

[0029] The present invention also provides a method for preparing the above-mentioned color-changing artificial leather, which includes a surface layer forming step. The surface layer forming step is: mixing the surface layer raw materials to form a surface layer slurry, and coating the surface layer slurry On the release paper, after drying at 130-160°C for 40-50S, the surface layer is obtained.

[0030] The beneficial effect of the preparation method of the variable color artificial leather of the present invention is:

[0031] The drying conditions of the surface layer are: 130-160°C, 40-50S. Through the setting of the above drying conditions, the moisture content of the obtained artificial leather surface layer tends to be within the optimum range, thus providing a good foundation for the discoloration effect on the one hand. On the one hand, the product stability of artificial leather is guaranteed.

[0032] Further, it also includes an inner layer forming step, the inne...

Embodiment 1

[0042] A color-changing artificial leather of the present embodiment comprises a surface layer, an inner layer and a foaming layer in order from top to bottom, and the surface layer is prepared from the following raw materials in parts by weight: 40 parts of polyurethane resin, 30 parts of organic solvent, 10 parts of silicon dioxide discoloration powder, 5 parts of matting powder, 0.5 parts of leveling agent and 3 parts of PU toner; the inner layer comprises the following raw materials in parts by weight and is prepared: 98 parts of polyvinyl chloride resin, phthalate di 60 parts of octyl ester, 10 parts of filler, 2 parts of heat stabilizer and 5 parts of PVC color paste; the foam layer is prepared from the following raw materials in parts by weight: 98 parts of polyvinyl chloride resin, dioctyl phthalate 70 parts, 60 parts of filler, 3 parts of stabilizer, 2 parts of foaming agent and 4 parts of PVC color paste. The organic solvent is dimethylformamide (DMF), toluene (TOL) ...

Embodiment 2

[0046] A color-changing artificial leather of the present embodiment comprises a surface layer, an inner layer and a foaming layer sequentially from top to bottom, and the surface layer is prepared from the following raw materials in parts by weight: 50 parts of polyurethane resin, 35 parts of organic solvent, 15 parts of silicon dioxide discoloration powder, 10 parts of matting powder, 1 part of leveling agent and 5 parts of PU toner; the inner layer comprises the following raw materials in parts by weight and is prepared: 102 parts of polyvinyl chloride resin, phthalic acid di 70 parts of octyl esters, 120 parts of fillers, 3 parts of heat stabilizers and 10 parts of PVC color paste; the foam layer is prepared from the following raw materials in parts by weight: 102 parts of polyvinyl chloride resin, dioctyl phthalate 90 parts, 80 parts of filler, 4 parts of stabilizer, 4 parts of foaming agent and 8 parts of PVC color paste. The organic solvent is dimethylformamide (DMF), t...

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Abstract

The invention relates to a color changeable artificial leather, including a surface layer. The surface layer is prepared from the following raw materials by weight: 40-50 parts of polyurethane resin, 30-35 parts of an organic solvent, 10-15 parts of a silica powder discoloration powder, 5-10 parts of a matting powder, 0.5-1 part of a leveling agent and 3-5 parts of a PU toner. The invention also relates to a preparation method of the color changeable artificial leather and the color changing method of the color changeable artificial leather. The color changeable artificial leather of the invention under pressure or high temperature can change color and has the advantage of enduring color changing effect.

Description

technical field [0001] The invention relates to the technical field of leather processing, in particular to a color-changing artificial leather, a preparation method thereof, and a color-changing method. Background technique [0002] Artificial leather in the prior art comprises polyurethane resin surface layer, polyvinyl chloride resin surface layer, polyurethane adhesive and artificial leather base cloth, and the formula of polyurethane resin surface layer is: 100 parts of polyurethane resin, organic solvent (MEK or DMF) 80- 100 parts and 5-10 parts of PU color paste; the formula of the polyvinyl chloride resin surface layer is: 100 parts of polyvinyl chloride resin, 70-90 parts of dioctyl phthalate and filler (CaCO 3 ) 60-80 copies. The above-mentioned artificial leather does not have the property of discoloration. [0003] The Chinese patent application with the application number 201110315112.2 discloses a color-changing PVC artificial leather, and specifically disclo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/18C08L75/04C08K3/36C08L27/06C08K5/12C08K3/26C08J9/10D06C15/00
Inventor 陈金章王艳英陈瑞来姚子斌茅金彬阮宜课钟英元
Owner FUJIAN POLYTECH TECH CO LTD
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