Composite leather and manufacturing method thereof

A manufacturing method and leather technology, applied in textiles, papermaking, fiber processing, etc., can solve the problems of limited improvement of air permeability and mechanical properties, and achieve the effects of improved wearing experience, good waterproof performance, good air permeability and hand feeling

Active Publication Date: 2018-09-07
广州可那派英皮具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with pure polyacrylate emulsion, the composite emulsion prepared by this invention can improve the hygienic performance, water resistance and mechanical properties of the coating at the same time by utilizing the excellent properties of zinc oxide, but its air permeability and mechanical properties are limited, and further improvement is needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of compound leather and manufacture method thereof, comprises the following steps:

[0041] (1) Prepare the base cloth, impregnate the base cloth with an inorganic mixture, squeeze the liquid and then dry it;

[0042] (2) To prepare slurry, add 8 parts of foaming agent to 80 parts of water-based polyurethane, and mix evenly to obtain water-based polyurethane slurry;

[0043] (3) Squeegee-coating slurry, scrape-coating the water-based polyurethane slurry on the base cloth, drying and cooling to obtain the water-based polyurethane leather bass;

[0044](4) Surface treatment: use a finishing agent to carry out surface finishing treatment on the water-based polyurethane leather bass to obtain composite leather. In the step of preparing the base cloth, the inorganic mixed solution includes 1 mass part of nano-calcium carbonate, 1 mass part of nano-zirconia, 2 mass parts of nano-titanium dioxide, 2 mass parts of nano-zinc oxide, and 100 mass parts of deionized water ...

Embodiment 2

[0048] The difference between Example 2 and Example 1 is that in the step of preparing the base cloth, the base cloth is soaked in the inorganic mixed liquid, and the amount of impregnation is 50% of the weight of the base cloth, and the amount of impregnation after liquid rolling is based on 30% of the weight of the cloth, and the base cloth after the squeezed liquid is dried at 100°C;

[0049] In the described scraping slurry step, the scraping amount of the slurry is 260g / m 2 , the drying temperature is 80°C;

[0050] In the described surface treatment step, the finishing agent is rolled onto the water-based polyurethane leather bass, and the roll coating amount is 20g / m 2 , the drying temperature is 80°C.

Embodiment 3

[0052] The difference between Example 3 and Example 1 is that in the step of preparing the base cloth, the base cloth is dipped in the inorganic mixture, and the amount of impregnation is 70% of the weight of the base cloth. 50% of the weight of the cloth, and the base cloth after the squeezed liquid is dried at 150°C;

[0053] In the described scraping slurry step, the scraping amount of the slurry is 500g / m 2 , the drying temperature is 150°C;

[0054] In the surface treatment step, the finishing agent is rolled onto the water-based polyurethane leather bass, and the amount of roll coating is 40g / m 2 , the drying temperature is 150°C.

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PUM

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Abstract

The invention relates to the field of feather manufacturing and provides a composite leather and a manufacturing method thereof, which is used for solving the problem of increasing leather permeability and strength. The composite leather and the manufacturing method thereof include the following steps: (1) preparing a base cloth, using inorganic hybrid liquid to impregnate the base cloth, rollingliquid and drying;(2) preparing slurry, adding 5-8 parts of foaming agent to 40-80 parts of waterborne polyurethane, evenly mixing and obtaining waterborne polyurethane slurry;(3) scratching the slurry, scratching the waterborne polyurethane slurry on the base cloth, drying and cooling, then obtaining waterborne polyurethane leather bayes;(4) processing surface, conducting surface-finishing processing on the waterborne polyurethane leather bayes by using finishing agent, and obtaining the composite leather. The base cloth impregnated by the inorganic hybrid liquid can effectively prevent the waterborne polyurethane slurry from permeating into the base cloth, and the leather with surface processing has good permeability and feel.

Description

technical field [0001] The invention relates to the field of leather manufacturing, in particular to a composite leather and a manufacturing method thereof. Background technique [0002] At present, most of the synthetic leather resins used in the synthetic leather industry at home and abroad are solvent-based polyurethane resins. The production process of artificial leather and synthetic leather is mainly divided into dry process polyurethane tanning process and wet process polyurethane tanning process. The dry polyurethane tanning process refers to the multi-layer structure formed by volatilizing the solvent in the solvent-based polyurethane resin to obtain a multi-layer film plus a base cloth, including direct coating and scraping method and release paper method. Wet polyurethane tanning process refers to the multi-layer structure with air permeability and moisture permeability and continuous porous layer obtained by the film-forming method in water after the solvent in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/00D06N3/14D06M11/44D06M11/46D06M11/76
CPCD06M11/44D06M11/46D06M11/76D06N3/005D06N3/0059D06N3/0063D06N3/0077D06N3/145D06N2211/28
Inventor 彭俊杰
Owner 广州可那派英皮具有限公司
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