Low-temperature-deflection-resistant perforated gas-permeable polyvinyl chloride artificial leather and preparation method thereof

A technology of polyvinyl chloride and polyvinyl chloride resin, applied in the field of artificial leather, can solve the problems of insufficient ventilation comfort, poor flexural performance, poor wear resistance, etc., achieve excellent thermal stability and light stability, and good low temperature resistance , the effect of good mechanical strength

Active Publication Date: 2017-11-17
BENECKE CHANGSHUN AUTO TRIMZHANGJIAGANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, artificial leather materials are widely used, and consumers' enthusiasm for product quality is gradually increasing. However, artificial leather generally has the following problems: Although genuine leather materials have good air permeability and hand feel, genuine leather has the following obvious defects: expensive and limited resources. In addition, the leather has poor low temperature flex resistance, poor wear resistance, and the surface is easily damaged. Once sharp objects such as knives, scissors, and needles are encountered, marks will be left on the leather; Good resistance to cleaning and abrasion, but its breathability and comfort are not enough, and the perforated breathable material prepared by ordinary polyvinyl chloride formula has long-term scratch resistance and poor practicability due to its poor flexural performance. Obvious disadvantages; moreover, in the process of surface treatment of artificial leather, substances that are reproductive toxic - N-methylpyrrolidone and N-ethylpyrrolidone are often used, which are harmful to human health
[0003] At the same time, in the production and processing of artificial leather, the calendering method is commonly used, but the temperature in the calendering process in the prior art is too high, which is likely to cause adverse physical or chemical changes in the material itself, and even cause a fire.
However, the temperature is too low to meet the product quality requirements, so the temperature control in the rolling process is relatively strict and demanding, the production cost is high and the efficiency is low, which is not conducive to industrial production

Method used

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  • Low-temperature-deflection-resistant perforated gas-permeable polyvinyl chloride artificial leather and preparation method thereof
  • Low-temperature-deflection-resistant perforated gas-permeable polyvinyl chloride artificial leather and preparation method thereof
  • Low-temperature-deflection-resistant perforated gas-permeable polyvinyl chloride artificial leather and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The feel agent consists of the following components: 10g of paraffin wax, 5g of fatty acid, 2g of microcrystalline wax, 1.8g of sorbitan monooleate polyoxyethylene ether, 1g of sodium polyacrylate, and 0.4g of emulsified silicone oil.

[0033] Weigh the blowing agent component raw material of Example 1 weight part according to Table 1, and fully mix.

[0034] According to Table 2, we weigh the PVC foam layer raw material of Example 1 weight part, first add polyvinyl chloride resin and low-temperature resistant plasticizer in the mixing tank, mix well, add foaming agent, stir for 50min and mix well, let the slurry out, Obtain the PVC foam layer slurry, transfer to the hopper of the twin-roller extruder, the viscosity of the PVC foam layer slurry is 7000cps and is coated on the composite cotton base cloth, and the coating amount of coating is 15g / m Cloth speed 40m / min, kneading and calendering in a twin-roller mixing extruder, followed by temperature 140°C, vacuum degree ...

Embodiment 2

[0038] The hand feeling agent is the same as that in Example 1. According to Table 1, weigh 2 parts by weight of the foaming agent component raw materials in Example 1, and mix well.

[0039] Weigh the PVC foam layer raw material of Example 2 weight parts according to Table 2, first add polyvinyl chloride resin and low temperature resistant plasticizer in the mixing tank, mix evenly, add foaming agent, stir for 40min to mix evenly, let the pulp, Obtain the PVC foam layer slurry, transfer to the hopper of the twin-roller extruder, the viscosity of the PVC foam layer slurry is 15000cps and is coated on the composite cotton base cloth, and the coating amount of coating is 12g / m Cloth speed 30m / min, kneading and calendering in a twin-roller mixing extruder, followed by temperature 140°C, vacuum degree 0.13MPa, calendering time 3min; temperature 140°C, vacuum degree 0.15MPa, calendering time 6min; temperature 160°C, Vacuum degree 0.15MPa, calendering time 5min, after finishing, coo...

Embodiment 3

[0043] The hand feel agent is the same as that in Example 1. According to Table 1, weigh 3 parts by weight of the foaming agent component raw materials in Example 1, and mix well.

[0044] According to Table 2, weigh 3 parts by weight of the PVC foam layer raw material in Example 2, first add polyvinyl chloride resin and low-temperature resistant plasticizer in the mixing tank, mix well, add foaming agent, stir for 40min and mix well, let the slurry out, Obtain the PVC foam layer slurry, transfer to the hopper of the twin-roller extruder, the viscosity of the PVC foam layer slurry is 4000cps and is coated on the composite cotton base cloth, and the coating amount of coating is 20g / m Cloth speed 30m / min, kneading and calendering in a twin-roller mixing extruder, followed by temperature 130°C, vacuum degree 0.2MPa, calendering time 3min; temperature 145°C, vacuum degree 0.13MPa, calendering time 6min; temperature 160°C, Vacuum degree 0.2MPa, calendering time 6min, after finishin...

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Abstract

The invention discloses a low-temperature-deflection-resistant perforated gas-permeable polyvinyl chloride artificial leather and a preparation method thereof, wherein the artificial leather comprises a base cloth layer, a PVC foaming layer, a PVC compact layer and a paint layer. According to the present invention, the low-temperature-deflection-resistant perforated gas-permeable polyvinyl chloride artificial leather prepared by using the formula and the preparation method has characteristics of good mechanical strength, strong toughness, wear resistance and strong low-temperature-deflection resistance, further has advantages of gas permeability and comfort similar to the leather, and further has characteristics of good hand feeling and high security.

Description

technical field [0001] The invention relates to the technical field of artificial leather, in particular to a low-temperature deflection-resistant perforated air-permeable polyvinyl chloride artificial leather and a preparation method thereof. Background technique [0002] At present, artificial leather materials are widely used, and consumers' enthusiasm for product quality is gradually increasing. However, artificial leather generally has the following problems: Although genuine leather materials have good air permeability and hand feel, genuine leather has the following obvious defects: expensive and limited resources. In addition, the leather has poor low temperature flex resistance, poor wear resistance, and the surface is easily damaged. Once sharp objects such as knives, scissors, and needles are encountered, marks will be left on the leather; Good resistance to cleaning and abrasion, but its breathability and comfort are not enough, and the perforated breathable mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/06D06N3/00C08L27/06C08L63/00C08L23/06C08J9/04C09D127/06C09D7/12
CPCC08J9/04C08J2327/06C08L27/06C08L2203/14C08L2205/025C08L2205/03C08L2205/035C09D127/06D06N3/005D06N3/0059D06N3/0061D06N3/0077D06N3/06D06N2209/103D06N2209/123D06N2211/28D06N2213/02C08L63/00C08L23/06C08L91/06C08L33/02C08L83/04C08K5/09
Inventor 蔡东旦陈红梅滕大勇
Owner BENECKE CHANGSHUN AUTO TRIMZHANGJIAGANG
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