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PP (polypropylene) imitation leather material preparation method

A technology for leather and pulp, applied in the field of preparation of PP imitation leather materials, can solve problems such as environmental and human hazards, and achieve the effects of improving tear resistance and cold resistance, uniform dispersion, and improved dispersibility

Inactive Publication Date: 2020-01-14
WENZHOU XINTAI NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solvents that cannot be recovered during production are discharged into the environment in the form of gas and waste water, causing great harm to the environment and the human body, so it needs to be improved

Method used

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  • PP (polypropylene) imitation leather material preparation method
  • PP (polypropylene) imitation leather material preparation method
  • PP (polypropylene) imitation leather material preparation method

Examples

Experimental program
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Effect test

preparation example Construction

[0036] A preparation method of a PP imitation leather material, comprising the following production steps:

[0037] (1) Prepare base cloth: base cloth selects non-woven fabric for use;

[0038] (2) Take 40-60 parts by weight of polypropylene, 15-25 parts by weight of EVA, 15-25 parts by weight of POE, 15-20 parts by weight of compound filler, 1-5 parts by weight of nano-talcum powder, 0.1-0.2 parts by weight of Polyethylene wax and 5-10 parts by weight of low-temperature AC powder foaming agent are mixed to make a foam coating slurry with a density of 100-300 g / L for later use;

[0039] (3) Take 40-60 parts by weight of polypropylene, 15-25 parts by weight of EVA, 15-25 parts by weight of POE, 0.2-0.4 parts by weight of antioxidant, 5-10 parts by weight of compound filler, 1-2 parts by weight of Anti-cracking agent and 1 to 3 parts by weight of coloring agent are mixed to make a fabric layer slurry with a density of 100 to 150 g / L for later use;

[0040] (4) Coat the standby...

Embodiment 1

[0060] Prepare PP imitation leather according to the above steps, and weigh the raw materials according to the proportion in Table 1, see Table 1 and Table 2 for details.

Embodiment 2

[0062] The difference from Example 1 is that the ratio of raw materials added when preparing PP imitation leather is different, see Table 1 and Table 2 for details.

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Abstract

The invention discloses a PP (polypropylene) imitation leather material preparation method which includes the production steps: (1) preparing a base fabric: selecting a non-woven fabric as the base fabric; (2) preparing intumescent coating slurry for standby application; (3) preparing fabric layer slurry for standby application; (4) coating the standby base fabric with the intumescent coating slurry by a calender, and bonding the base fabric and the intumescent coating slurry by a hot-pressing method; (5) coating the intumescent coating slurry of the base fabric with the standby fabric layer slurry by the calender to prepare a PP imitation leather semi-finished product; (6) feeding the PP imitation leather semi-finished product into a foaming furnace for drying and foaming; (7) embossing the foamed PP imitation leather semi-finished product by a surface treating machine; (8) inspecting an embossed PP imitation leather finished product by a finished product inspection machine to preparesynthetic leather. The preparation method has the advantages that the hand feel of imitation leather prepared from materials is approximate to that of PVC (polyvinyl chloride) synthetic leather, andthe imitation leather is high in strength, resistant to low temperature, non-toxic, environmentally friendly and safe.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a preparation method of a PP imitation leather material. Background technique [0002] Artificial leather is an imitation leather product that looks and feels like leather and can be used instead of it. It is usually made of fabric as the base, coated with synthetic resin and various imitation leathers. [0003] At present, the production and processing of the entire synthetic leather industry is based on solvent-based polyurethane (PU) or polyvinyl chloride (PVC) as the main base, and a large number of organic solvents are used in the production process, such as dimethyl formamide, methyl ethyl ketone, acetone, Toluene, ethyl acetate, etc., these solvents are extremely harmful to the human body. Generally, the solid content of polyurethane resin for synthetic leather is about 30%, and the organic solvent content reaches 70%, and a certain amount of organic solvent wi...

Claims

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Application Information

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IPC IPC(8): D06N3/00D06N3/04D06N3/12
CPCD06N3/12D06N3/045D06N3/0063D06N3/005D06N3/0011D06N2213/03D06N2209/1692D06N2209/103D06N2209/067D06N2211/28
Inventor 陈年福方学武陈姜伟
Owner WENZHOU XINTAI NEW MATERIALS CO LTD
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