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Environment-friendly foaming artificial leather and preparation method thereof

An artificial leather and environmental protection technology, applied in the field of artificial leather, can solve the problems of water pollution, air pollution, high toxicity of dioctyl phthalate, etc., and achieve the effects of reducing energy consumption and reducing foaming temperature

Active Publication Date: 2016-11-09
FUJIAN POLYTECH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the foamed artificial leather obtained by adopting the above-mentioned raw material design and preparation method is good in performance, the used AC foaming agent of the above-mentioned foamed artificial leather contains azodicarbonamide, and the used plasticizer is dioctyl phthalate (DEHP). ), azodicarbonamide is heated to decompose nitrogen oxides and carbon monoxide to pollute the air, azodicarbonamide will also pollute the water in the environment, and dioctyl phthalate is highly toxic. The country prohibits the use of azodicarbonamide and dioctyl phthalate, and the existing foamed artificial leather often does not comply with EU REACH regulations because of containing these two substances

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

[0025] The preparation method of the environment-friendly foamed artificial leather of this embodiment is to weigh and mix the raw materials of 100 parts by weight of polyurethane resin, 80 parts by weight of MEK and 7 parts by weight of PU color paste to form a surface layer slurry, first set the coating gap, and then The surface layer slurry is coated on the release paper, and dried at 100°C for 65S; weigh 100 parts by weight of polyvinyl chloride resin, 70 parts by weight of dioctyl terephthalate, CaCO 3 The raw materials of 50 parts by weight, 2 parts by weight of KZn and 3 parts by weight of protein foaming powder are mixed to form a foam layer slurry, and then the foam layer slurry is coated on the surface layer slurry after drying, at 160 The foaming reaction is carried out under the condition of ℃, the time of the foaming reaction is 80S, and then the polyurethane adhesive is coated on the foam layer slurry, and the foam layer slurry is passed through the polyurethane ...

Embodiment 2

[0027] The preparation method of the environment-friendly foamed artificial leather of this embodiment is to weigh and mix the raw materials of 100 parts by weight of polyurethane resin, 100 parts by weight of MEK and 7 parts by weight of PU color paste to form a surface layer slurry, first set the coating gap, and then The surface layer slurry was coated on the release paper, and dried at 150°C for 100 seconds; weighed 100 parts by weight of polyvinyl chloride resin, 90 parts by weight of dioctyl terephthalate, CaCO 3 The raw materials of 70 parts by weight, 3 parts by weight of KZn and 5 parts by weight of protein foaming powder are mixed to form a foamed layer slurry, and then the foamed layer slurry is coated on the surface layer slurry after drying, at 170 The foaming reaction is carried out under the condition of ℃, and the time of the foaming reaction is 120S, and then the polyurethane adhesive is coated on the foam layer slurry, and the foam layer slurry is passed thro...

Embodiment 3

[0029] The preparation method of the environment-friendly foamed artificial leather of this embodiment is to weigh and mix the raw materials of 100 parts by weight of polyurethane resin, 90 parts by weight of MEK and 5 parts by weight of PU color paste to form a surface layer slurry, first set the coating gap, and then The surface layer slurry is coated on the release paper, and dried at 125°C for 85S; weigh 100 parts by weight of polyvinyl chloride resin, 80 parts by weight of dioctyl terephthalate, CaCO 3 The raw materials of 60 parts by weight, 2.5 parts by weight of KZn and 4 parts by weight of protein foaming powder are mixed to form a foamed layer slurry, and then the foamed layer slurry is coated on the surface layer slurry after drying, at 165 The foaming reaction is carried out under the condition of ℃, and the time of the foaming reaction is 100S, and then the polyurethane adhesive is coated on the foam layer slurry, and the foam layer slurry is passed through the po...

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 environment-friendly foaming artificial leather which comprises a face layer and a foaming layer. The face layer is prepared from, by weight, 100 parts of polyurethane resin, 80-100 parts of organic solvent and 3-7 parts of PU color paste. The foaming layer is prepared from, by weight, 100 parts of polyvinyl chloride resin, 70-90 parts of dioctyl terephthalate, 50-70 parts of filler, 2-3 parts of stabilizer and 2-10 parts of foaming agent, wherein the foaming agent is protein foaming powder. The invention further relates to a preparation method of the environment-friendly foaming artificial leather. The environment-friendly foaming artificial leather contains no azodicarbonamide or dioctyl phthalate, complies with European Union REACH laws and regulations and is more environmentally friendly. The preparation method of the environment-friendly foaming artificial leather has the advantages that the process is simple and convenient, and energy consumption is low.

Description

technical field [0001] The invention relates to the technical field of artificial leather, in particular to an environmentally friendly foamed artificial leather and a preparation method thereof. Background technique [0002] Artificial leather is a product that looks and feels like leather and can partially replace it. Foamed artificial leather is a kind of artificial leather. It is usually based on knitted fabric. The surface layer paste contains foaming agent and its additives. When it is gelled, it foams to form a microporous structure. Plump and soft, it is often used in the production of gloves, bags, clothing and furniture. [0003] Foamed artificial leather in the prior art adopts the raw material design of 100 parts of polyurethane resin, 80-100 parts of organic solvent and 3-7 parts of PU color paste as the surface layer; adopts 100 parts of polyvinyl chloride resin, dioctyl phthalate The raw materials of (DEHP) 70-80 parts, filler 50-70 parts, stabilizer 2-3 par...

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): D06N3/00
CPCD06N3/0043D06N3/0059D06N2211/28
Inventor 陈金章王艳英陈瑞来阮宜课吴李煌陈海金蔡美良茅金彬
Owner FUJIAN POLYTECH TECH CO LTD
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