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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

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 the finished product, and post-treatment and surface treatment are required after foaming treatment, resulting in many processing steps and insufficient production efficiency

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

Embodiment 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, 0.5 parts of LT-7100 in 30 parts of water, and the surface layer The slurry is fully stirred and mixed evenly, then pumped to a vacuum, and then evenly coated on the front of the plain release paper as the 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 part of LA-1610, 0.2 part of ST-7110 in 50 parts of water, and then make the middle layer slurry After fully stirring and mixing evenly, after vacuuming, apply it evenly on the surface layer to prepare the middle layer. The thickness of the middle layer slurry is 0.09mm; the surface layer and the middle layer are air-dried at 90°C for 3 minutes ;

[0062] 3. Mix 120 parts of AL-2170A, 52 parts of AL-5040B, 0.2 parts of Chisorb 234, and 0.2 parts o...

Embodiment 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, 0.6 parts of LT-7100 in 40 parts of water, fully stir and mix the surface layer slurry After that, it is pumped to a vacuum, and then evenly coated and scratched on the front of the plain release paper as the surface layer, and 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 part of LA-1610, 0.3 part of ST-7110 in 55 parts of water, then fully stir and mix the middle layer slurry evenly before pumping After vacuuming, apply it evenly on the surface layer to make the middle layer. The thickness of the middle layer slurry is 0.12mm; the surface layer and the middle 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, and 0.2 parts of Chisorb 944, mix and stir evenly, then evacuat...

Embodiment 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 parts of LA-1610, 0.4 parts of LT-7100 in 50 parts of water, fully stir and mix the surface layer slurry After that, it is pumped to a vacuum, and then evenly coated and scratched on the front of the plain release paper as the surface layer, and 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, then fully stir the middle layer slurry and pump it evenly After vacuuming, apply it evenly on the surface layer to make the middle layer. The thickness of the middle layer slurry is 0.11mm; the surface layer and the middle layer are air-dried at 90°C for 3 minutes;

[0074] 3. Mix 140 parts of AL-2170A, 62 parts of AL-5040B, 0.3 parts of Chisorb 234, and 0.3 parts of Chisorb 944, mix and stir evenly, then evacuate it, ...

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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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