Waterborne foamed velvet solvent-free compound polyurethane synthetic leather for sofas and preparation method of waterborne foamed velvet solvent-free compound polyurethane synthetic leather

A synthetic leather and polyurethane technology, applied in textiles and papermaking, can solve problems such as insufficient production efficiency, poor hydrolysis resistance, and many processing procedures, and achieve simple production procedures, good hydrolysis resistance, and a green production environment.

Active Publication Date: 2020-01-03
ANHUI ANLI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This coating solution is directly coated on the base cloth, which is easy to penetrate into the cloth base, resulting in poor hand feeling and poor hydrolysis resistance of

Method used

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  • Waterborne foamed velvet solvent-free compound polyurethane synthetic leather for sofas and preparation method of waterborne foamed velvet solvent-free compound polyurethane synthetic leather
  • Waterborne foamed velvet solvent-free compound polyurethane synthetic leather for sofas and preparation method of waterborne foamed velvet solvent-free compound polyurethane synthetic leather
  • Waterborne foamed velvet solvent-free compound polyurethane synthetic leather for sofas and preparation method of waterborne foamed velvet solvent-free compound polyurethane synthetic leather

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0059] Example 1:

[0060] 1. Dissolve 160 parts of RU-92-103, 8 parts of color paste, 2 parts of PTEF, 2 parts of 3238, 4 parts of XR-5580, 0.8 parts of LA-1610, and 0.5 parts of LT-7100 in 30 parts of water. The slurry is fully stirred and mixed evenly and then evacuated to a vacuum, and then evenly coated and scraped on the front of the plain weave release paper as a surface layer, and the coating thickness of the surface layer slurry is 0.04mm;

[0061] 2. Dissolve 150 parts of RU-92-279, 8 parts of color paste, 2 parts of 3238, 4 parts of XR-5580, 0.7 parts of LA-1610, 0.2 parts of ST-7110 in 50 parts of water, and then dissolving the intermediate layer slurry. After fully stirring and mixing evenly, after vacuuming, it is evenly coated and scraped on the surface layer to obtain the middle layer. The thickness of the middle layer slurry is 0.09mm; the surface layer and the middle layer are dried by blasting at 90 ° C for 3 minutes. ;

[0062] 3. Mix 120 parts of AL-2170...

Example Embodiment

[0065] Example 2:

[0066] 1. Dissolve 175 parts of RU-92-103, 12 parts of color paste, 3 parts of PTEF, 3 parts of 3238, 0.9 parts of LA-1610, and 0.6 parts of LT-7100 in 40 parts of water, and fully stir and mix the surface layer slurry evenly After pumping to vacuum, and then evenly coating and scraping on the front of the plain weave release paper as a surface layer, the coating thickness of the surface layer slurry is 0.05mm;

[0067] 2. Dissolve 160 parts of RU-92-279, 13 parts of color paste, 2 parts of 3238, 0.8 parts of LA-1610, 0.3 parts of ST-7110 in 55 parts of water, and then fully stir and mix the intermediate layer slurry. After vacuuming, it is evenly coated and scraped on the surface layer to obtain an intermediate layer, and the coating thickness of the intermediate layer slurry is 0.12mm; the surface layer and the intermediate layer are air-dried at 95°C for 2 minutes;

[0068] 3. Mix 140 parts of AL-2170A, 56 parts of AL-5040B, 0.3 parts of Chisorb 234, an...

Example Embodiment

[0071] Example 3:

[0072] 1. Dissolve 155 parts of RU-92-103, 8 parts of color paste, 3 parts of PTEF, 5 parts of 3238, 0.6 part of LA-1610, 0.4 part of LT-7100 in 50 parts of water, and fully stir and mix the surface layer slurry evenly After pumping to vacuum, and then evenly coating and scraping on the front of the plain weave release paper as a surface layer, the coating thickness of the surface layer slurry is 0.05mm;

[0073] 2. Dissolve 140 parts of RU-92-279, 11 parts of color paste, 3 parts of 3238, 0.4 parts of LA-1610, and 0.5 parts of ST-7110 in 55 parts of water, and then fully stir and mix the intermediate layer slurry. After vacuuming, it is evenly coated and scraped on the surface layer to obtain an intermediate layer, and the coating thickness of the intermediate layer slurry is 0.11mm; the surface layer and the intermediate layer are dried by blasting at 90 ° C for 3 minutes;

[0074] 3. Mix 140 parts of AL-2170A, 62 parts of AL-5040B, 0.3 parts of Chisorb ...

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Abstract

The invention discloses waterborne foamed velvet solvent-free compound polyurethane synthetic leather for sofas and a preparation method of the waterborne foamed velvet solvent-free compound polyurethane synthetic leather. The compound polyurethane synthetic leather comprises a wear-proof foamed velvet layer, a waterproof surface layer, a waterborne middle layer, an environment-friendly solvent-free compound adhesive layer and base cloth sequentially from top to bottom. The compound polyurethane synthetic leather has durable soft velvet hand feel, delicate genuine leather texture and excellentwear resistance and durability, hydrolysis resistance lasts for 8-12 years, Wyzenbeek wear resistance is 900,000-1,500,000 times, and Martindale wear resistance is 200,000-300,000 times. In addition,a production process is simple, convenient and environmentally friendly.

Description

technical field [0001] The invention relates to a polyurethane synthetic leather, in particular to a water-based foamed velvet-like solvent-free composite polyurethane synthetic leather for sofas and a preparation method thereof. Background technique [0002] With the continuous development of polyurethane synthetic leather technology, the types of synthetic leather are becoming more and more abundant. Consumers not only pay attention to the appearance of synthetic leather, but also care about the inner quality of leather products. The surface of traditional synthetic leather is coated or sprayed with a layer of resin material, resulting in a smooth leather surface and a strong overall plastic feel. The suede nubuck leather products are more and more favored by consumers because of their rich and delicate suede surface, extremely comfortable hand feeling and good leather effect. [0003] Synthetic leather with velvet feel can generally be prepared by methods such as velvet...

Claims

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Application Information

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IPC IPC(8): D06N3/18D06N3/14D06N3/12D06N3/00
CPCD06N3/183D06N3/145D06N3/147D06N3/146D06N3/128D06N3/0059D06N3/0061D06N3/0036D06N3/0025D06N3/0043D06N3/0088D06N3/0077D06N2201/042D06N2209/1685D06N2209/146
Inventor 刘兵李道鹏王燕武孙心如叶奇泉宋远周王森戴俊黄万里姚克俭
Owner ANHUI ANLI MATERIAL TECH
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