Allochroic artificial leather and preparation method thereof

A technology of artificial leather and color-changing layer, applied in the field of artificial leather, can solve problems such as poor surface friction, and achieve the effects of easy operation, improved wear resistance, and easy promotion

Active Publication Date: 2015-12-09
FUJIAN POLYTECH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the color-changing artificial leather obtained by the above-mentioned raw material design or preparation method can realize the color-changing effect, its surface wear resistance is tested by a friction testing machine, and the number of frictions can only reach 20,000 times. Therefore, there is a problem of poor surface friction.

Method used

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  • Allochroic artificial leather and preparation method thereof

Examples

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preparation example Construction

[0019] The present invention also provides a method for preparing the above-mentioned color-changing artificial leather. The preparation raw materials for the surface layer are mixed according to the above-mentioned ratio to form a surface layer slurry, and the surface layer slurry is coated on a release paper, and heated at 130-160° C. Dry under the same conditions for 60-70S; mix the raw materials for the preparation of the color-changing layer according to the above ratio to form a color-changing layer slurry, and then apply the color-changing layer slurry on the dried surface layer slurry at 150-170 Dry at ℃ for 70-80S; mix the preparation raw materials of the foam layer according to the above ratio to form a foam layer slurry, and then apply the foam layer slurry on the dried color-changing layer slurry, at 170 The foaming reaction is carried out at -190°C, and the time of the foaming reaction is 80-90 seconds, and then the polyurethane adhesive is coated on the foam layer...

Embodiment 1

[0028] A preparation method of color-changing artificial leather. The surface layer raw materials of 100 parts by weight of polyurethane resin, 80 parts by weight of MEK and 1 part by weight of (A-375) stripping aid are weighed and mixed to form a surface layer slurry, and the coating gap is set first. , and then coated the surface layer slurry on the release paper, dried at 130°C for 60S; weighed 100 parts by weight of polyvinyl chloride resin, 80 parts by weight of dioctyl phthalate, calcium bicarbonate 40 parts by weight, 1 part by weight of BaZn stabilizer and 3 parts by weight of PVC color paste are mixed together to form a color-changing layer slurry, and then the color-changing layer slurry is coated on the dried surface layer slurry , dried at 150°C for 70S; weighed 100 parts by weight of polyvinyl chloride resin, 80 parts by weight of dioctyl phthalate, CaCO 3 60 parts by weight, 2 parts by weight of KZn stabilizer and 3 parts by weight of AC foaming agent are mixed t...

Embodiment 2

[0030] A preparation method of color-changing artificial leather. The surface layer raw materials of 100 parts by weight of polyurethane resin, 100 parts by weight of MEK and 3 parts by weight of (A-375) stripping aid are weighed and mixed to form a surface layer slurry, and the coating gap is first set , and then coated the surface layer slurry on the release paper, dried at 160°C for 70S; weighed 100 parts by weight of polyvinyl chloride resin, 100 parts by weight of dioctyl phthalate, calcium bicarbonate 60 parts by weight, 3 parts by weight of BaZn stabilizer and 5 parts by weight of PVC color paste are mixed to form the color-changing layer slurry, and then the color-changing layer slurry is coated on the dried surface layer slurry , dried at 170°C for 80S; weighed 100 parts by weight of polyvinyl chloride resin, 90 parts by weight of dioctyl phthalate, CaCO 370 parts by weight, 3 parts by weight of KZn stabilizer and 4 parts by weight of AC foaming agent are mixed togeth...

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Abstract

The invention relates to allochroic artificial leather which sequentially comprises a surface layer, an allochroic layer and a foaming layer from top to bottom. The surface layer is prepared from, by weight, 100 parts of polyurethane resin and 80-100 parts of organic solvent; the allochroic layer is prepared from, by weight, 100 parts of polyvinyl chloride resin, 80-100 parts of dioctyl phthalate, 40-60 parts of calcium bicarbonate, 1-3 parts of heat stabilizers and 3-5 parts of PVC color paste; the foaming layer is prepared from, by weight, 100 parts of polyvinyl chloride resin, 80-90 parts of dioctyl phthalate, 60-70 parts of filling agents, 2-3 parts of stabilizers and 3-4 parts of foaming agents. The invention further relates to a preparation method of the allochroic artificial leather. The allochroic artificial leather has the advantages of significantly improving the wear-resisting property of the overall structure of the allochroic artificial leather.

Description

technical field [0001] The invention relates to artificial leather technology, in particular to a color-changing artificial leather and a preparation method thereof. Background technique [0002] Artificial leather is a plastic product that looks and feels like leather and can be used instead of it. At present, in order to adapt to the demand for artificial leather of various colors, the color-changing artificial leather in the prior art adopts 100 parts of polyurethane resin, 80-100 parts of organic solvent and 1-3 parts of (A-375) stripping agent as the raw material design. Layer; use 100 parts of polyurethane color-changing resin with specifications of PBS-N01, 20-40 parts of organic solvent and 1-3 parts of PU color paste as the color-changing layer; use 100 parts of polyvinyl chloride resin, dioctyl phthalate The raw materials of 70-90 parts of ester, 50-60 parts of filler, 2-3 parts of KZn stabilizer and 3-4 parts of AC foaming agent are designed as the foaming layer....

Claims

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Application Information

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IPC IPC(8): D06N3/08D06N3/00
Inventor 陈瑞来王艳英陈金章张彬钟英元茅金彬林芙蓉陈尚泰
Owner FUJIAN POLYTECH TECH CO LTD
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