Skin-friendly and environment-friendly polyurethane synthetic leather for earphone sleeve and preparing method of leather

An environmentally friendly polyurethane technology, applied in the field of polyurethane materials, can solve problems such as poor hydrolysis resistance and difficulty in meeting environmental protection pressure, and achieve full hand feeling, excellent environmental protection performance, and good hydrolysis resistance.

Inactive Publication Date: 2019-12-06
ANHUI ANLI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the synthetic leather of earphone covers on the market is generally made of soft polyurethane with DMF as the solvent, its hydrolysis resistance is poor and the environmental protection pressure is difficult to meet the standard.

Method used

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  • Skin-friendly and environment-friendly polyurethane synthetic leather for earphone sleeve and preparing method of leather
  • Skin-friendly and environment-friendly polyurethane synthetic leather for earphone sleeve and preparing method of leather
  • Skin-friendly and environment-friendly polyurethane synthetic leather for earphone sleeve and preparing method of leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Mix 80 parts of water-based polyether polyurethane resin, 5 parts of black color paste WH-907, 0.10 parts of water-based leveling agent, 0.10 parts of water-based thickener, and 2 parts of organosilicon compound to make a dry surface layer slurry, and then mix the water-based 80 parts of polyether polyurethane resin, 5 parts of black colorant WH-907, 0.10 part of water-based leveling agent, and 0.10 part of water-based thickener were mixed to make the middle layer slurry, and the dry surface layer slurry was coated on the release paper. The coating thickness is 0.12mm. After drying and curing at 115 °C, a dry surface layer is formed. Then, the intermediate layer slurry is coated on the dry surface layer. The coating thickness is 0.15 mm. After drying and curing at 115 °C, middle layer;

[0037] Mix 100 parts of polyester polyol, 10 parts of aluminum hydroxide, 0.01 part of catalyst DY-5508, and 0.01 part of blowing agent DY-29588 to prepare material A, material B is iso...

Embodiment 2

[0040] Mix 100 parts of water-based polyether polyurethane resin, 8 parts of white color paste WH-101, 0.15 parts of water-based leveling agent, 0.12 parts of water-based thickener, and 3 parts of organosilicon compound to make a dry surface layer slurry, and then mix the water-based 100 parts of polyether polyurethane resin, 8 parts of white color paste WH-101, 0.15 parts of water-based leveling agent, and 0.12 parts of water-based thickener are mixed to make the middle layer slurry, and the dry surface layer slurry is coated on the release paper Above, the coating thickness is 0.15mm, dried and cured at 120℃ to form a dry surface layer, and then the middle layer slurry is coated on the dry surface layer with a coating thickness of 0.20mm, and dried and cured at 120℃ to form a dry surface layer middle layer;

[0041] Mix 100 parts of polyester polyol, 15 parts of aluminum hydroxide, 0.05 parts of catalyst DY-5508, and 0.05 parts of foaming agent DY-29580 to make material A. M...

Embodiment 3

[0044] Mix 120 parts of water-based polyether polyurethane resin, 10 parts of blue color paste WH-603, 0.20 parts of water-based leveling agent, 0.15 parts of water-based thickener, and 4 parts of organosilicon compound to make a dry surface layer slurry, and then mix the water-based 120 parts of polyether polyurethane resin, 10 parts of blue color paste WH-603, 0.20 parts of water-based leveling agent, and 0.15 parts of water-based thickener are mixed to make the middle layer slurry, and the dry surface layer slurry is coated on the release paper On the top, the coating thickness is 0.18mm, dried and cured at 135°C to form a dry surface layer, and then the middle layer slurry is coated on the dry surface layer with a coating thickness of 0.12mm, dried and cured at 135°C to form a dry surface layer middle layer;

[0045] Mix 100 parts of polyester polyol, 20 parts of aluminum hydroxide, 0.1 part of catalyst DY-5508, and 0.1 part of foaming agent DY-2958 to make material A, and...

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Abstract

The invention discloses skin-friendly and environment-friendly polyurethane synthetic leather for an earphone sleeve and a preparing method of the leather. The leather sequentially comprises a dry-method surface layer, a middle layer, a foaming layer and a base cloth layer from outside to inside. The dry-method surface layer is prepared from, by weight, 80-120 parts of waterborne polyether type polyurethane resin, 0.10-0.15 part of a waterborne thickener, 0.10-0.20 part of a waterborne leveling agent, 5-10 parts of waterborne color paste and 2-4 parts of an organic silicon compound. The middlelayer is prepared from, by weight, 80-120 parts of waterborne polyether type polyurethane resin, 0.10-0.15 part of a waterborne thickener, 0.10-0.20 part of a waterborne leveling agent, 5-10 parts ofwaterborne color paste and 1-2 parts of a waterborne crosslinking agent. By means of the waterborne solvent-free process, the finished product can be controlled to be free of DMF, environmentally friendly and healthy; the prepared polyurethane synthetic leather is long in service life, excellent in hydrolysis resistance, soft in surface touch and plump in texture.

Description

technical field [0001] The invention belongs to the field of polyurethane materials, and in particular relates to a skin-friendly and environmentally friendly type polyurethane synthetic leather for earphone sleeves and a preparation method thereof. Background technique [0002] Leather earmuffs refer to a type of earmuffs with a leather surface, and there are many different materials and processes. It is used to relieve the pressure on the human head when the earphone is worn. Using leather is more resistant to soiling than cloth. Leather earmuffs are earmuffs that are made of genuine leather as a raw material. The epidermis can be made of genuine leather, and the other parts can be made of imitation leather, or all of them can be made of genuine leather. Usually the bottom leather is made of high-quality protein leather or ordinary leather, but the comfort level is higher than that of ordinary protein leather earmuffs. Imitation leather earmuffs are divided into high-qu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/00D06N3/14D06M15/647D06M101/38
CPCD06N3/145D06N3/146D06N3/147D06N3/0061D06N3/0027D06N3/0077D06N3/0097D06N3/0043D06N3/0063D06M15/647D06N2209/1664D06N2209/1621D06N2213/03D06M2101/38D06M2200/50
Inventor 陈泽迟红梅阮仁祥张玉萍胡健飞李威威阚道俊
Owner ANHUI ANLI MATERIAL TECH
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