Low-VOC (volatile organic compounds) artificial leather and preparation method thereof

A technology of artificial leather and resin layer, which is applied in the field of synthetic leather, can solve the problems of volatilization of VOC and environmental pollution, and achieve the effects of reducing the amount of use, improving the smoothness, and protecting the human body from harm

Inactive Publication Date: 2018-04-06
KUSN ACHILLES ARTIFICIAL LEATHER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional PU surface layer resin contains more than 70% volatile solvents, which are prone to volatile VOC and other harmful substances in high temperature environments, resulting in serious environmental pollution.

Method used

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  • Low-VOC (volatile organic compounds) artificial leather and preparation method thereof
  • Low-VOC (volatile organic compounds) artificial leather and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Low VOC artificial leather, including the first resin layer, the second resin layer and the base fabric layer from top to bottom, the resin layer is composed of polyurethane material, thickener, defoamer and nano-zinc oxide, the first resin layer and the second Both the two resin layers and the second resin layer and the base cloth layer are bonded by an adhesive layer.

[0027] Raw material formula: calculated in parts by mass, the polyurethane material is 90 parts of water-based polyurethane, the thickener is 0.5 parts of polyacrylamide, and the defoamer is 0.2 parts of polyether-modified organosiloxane defoamer and polysiloxane The mixture of defoamers, 3 parts of nano-zinc oxide.

[0028] The preparation method of low-VOC artificial leather comprises the following specific steps:

[0029] S1: Weigh the polyurethane material, thickener and nano zinc oxide, mix 30% of the total mass of the thickener formula with the polyurethane material, stir for 30 minutes, then ad...

Embodiment 2

[0036] Low VOC artificial leather, including the first resin layer, the second resin layer and the base fabric layer from top to bottom, the resin layer is composed of polyurethane material, thickener, defoamer and nano-zinc oxide, the first resin layer and the second Both the two resin layers and the second resin layer and the base cloth layer are bonded by an adhesive layer.

[0037] Raw material formula: Calculated in parts by mass, the polyurethane material is 88 parts of water-based polyurethane, the thickener is a mixture of 0.6 parts of polyacrylamide and polyurethane thickener, and the defoamer is 0.4 parts of polyether-modified organosiloxane A mixture of foaming agent and high-carbon alcohol defoaming agent, 4 parts of nano-zinc oxide.

[0038] The polyurethane material is one or more of water-based polyurethane, polyethylene terephthalate, polybutylene terephthalate, and the thickener is polyacrylamide, polyurethane thickener, aluminum silicate One or more, the def...

Embodiment 3

[0047] Low VOC artificial leather, including the first resin layer, the second resin layer and the base fabric layer from top to bottom, the resin layer is composed of polyurethane material, thickener, defoamer and nano-zinc oxide, the first resin layer and the second Both the two resin layers and the second resin layer and the base cloth layer are bonded by an adhesive layer.

[0048] Raw material formula: calculated in parts by mass, the polyurethane material is 92 parts of polybutylene terephthalate, the thickener is a mixture of polyacrylamide and aluminum silicate 0.6 part, and the defoamer is 0.5 part of polysiloxane defoamer Foaming agent, 6 parts of nanometer zinc oxide.

[0049] The preparation method of low-VOC artificial leather comprises the following specific steps:

[0050] S1: Weigh the polyurethane material, thickener and nano zinc oxide, mix 30% of the total mass of the thickener formula with the polyurethane material, stir for 30 minutes, then add 30% of the...

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Abstract

The invention belongs to the field of synthetic leather, and particularly relates to low-VOC (volatile organic compounds) artificial leather and a preparation method thereof. The low-VOC artificial leather contains a first resin layer, a second resin layer and a base cloth layer from top to bottom sequentially, wherein the resin layer is prepared from the following components in parts by mass: 85-92 parts of polyurethane, 0.2-0.8 parts of a thickener, 0.1-0.6 parts of a defoamer and 3-8 parts of nano-zinc oxide; the first resin layer and the second resin layer are adhered by an adhesive layer,and the second resin layer and the base cloth layer are adhered by an adhesive layer. The low-VOC artificial leather is obtained by steps as follows: preparation of the resin layers from polyurethane, adhering, separating and winding, a product is environmentally friendly, low in energy consumption and excellent in performance and batch production is facilitated.

Description

technical field [0001] The invention relates to the field of synthetic leather, in particular to a low-VOC artificial leather and a preparation method thereof. Background technique [0002] VOCs, or Volatile Organic Compounds, have a huge impact on human health. When the VOC in the confined space reaches a certain concentration, people will feel headache, nausea, vomiting, fatigue, etc. in a short period of time. Memory loss and other serious consequences, while the existing artificial leather will leave some VOC in the manufacturing process, and the leather will be exposed to the air for a long time. With the change of environmental factors such as external temperature, the VOC in the leather will easily volatilize into the air, affecting human health. [0003] PVC artificial leather is an ideal material for leather products such as bags, sofas, and car seat cushions, but its application is limited due to the extensive use of plasticizers, poor oil resistance, and poor ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14D06N3/00
CPCD06N3/0059D06N3/0063D06N3/0077D06N3/0097D06N3/143D06N3/145D06N2205/023D06N2209/0838D06N2209/103D06N2209/1685D06N2211/28
Inventor 赵建明徐青徐雪明
Owner KUSN ACHILLES ARTIFICIAL LEATHER
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