Preparation method of microfiber leather

A technology of microfiber skin and dry method, which is applied in the direction of final product manufacturing, sustainable manufacturing/processing, textile/flexible product manufacturing, etc., which can solve the problems of high price of natural leather, destruction of ecological balance, limited resources, etc., and achieve uniform thickness , the production process is environmentally friendly, and the treatment method is simple

Inactive Publication Date: 2018-10-12
海宁裘仕制衣有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Natural leather is not only expensive, but also has limited resources, which is not conducive to environmental protection, and also destroys the ecological balance, so there is an urgent need for the emergence of substitutes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The technical solution of the present invention is described in detail below. The embodiment of the present invention is only for illustrating a specific structure, and the scale of the structure is not limited by the embodiment.

[0017] A preparation method of microfiber leather, the production line is sea-island staple fiber → making high-density spunlace non-woven fabric → ironing and shrinkage → wet impregnation with PU resin → toluene reduction and extraction → drying tenter → oiling and softness → kneading Leather → dry PU veneer → functional treatment → microfiber leather;

[0018] Sea-island staple fiber: choose nylon chips and polyethylene chips, and make sea-island staple fibers through blend spinning;

[0019] Made of high-density spunlace non-woven fabric: the sea-island short fibers are fed, opened, carded, and laid to form a fiber layer of a certain thickness, and then the fibers are entangled with each other by the spunlace method to make a fabric with ...

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Abstract

The invention discloses a preparation method of microfiber leather. The production line of the preparation method comprises the following steps: production of a high-density spunlaced nonwoven fabricfrom sea island short fibers, ironing shrinkage, wet impregnation in PU resin, toluene reduction extraction, drying tentering, oiling softening, puffing , dry PU lamination, and functional treatment for producing the microfiber leather. The preparation method has the advantages of simple treatment process and environmentally-friendly production process, the microfiber leather contains no chromiumor other harmful substances, the raw material is a petroleum product, is environmentally friendly and nontoxic, and can be recycled, and the microfiber leather produced by the preparation method has the advantages of uniform thickness, excellent moisture absorption property, excellent air permeability, excellent mold resistance, excellent alkali resistance, excellent aging resistance and excellentwater repellency.

Description

technical field [0001] The invention relates to a method for preparing leather, in particular to a method for preparing superfiber leather. Background technique [0002] As we all know, natural leather is widely used in the production of daily necessities and industrial products because of its excellent natural characteristics. However, with the growth of the world population, the human demand for leather has doubled, and the limited amount of natural leather has long been unable to meet people's needs. [0003] Microfiber leather, the full name of polyurethane microfiber synthetic leather, is a newly developed high-simulation leather, which is based on sea-island microfiber containing PU (polyurethane) and coated with polyurethane resin. Sea-island fiber is to disperse one polymer (such as PA6) in another polymer (such as PE), and the dispersed phase in the fiber section is in the state of "island", while the matrix is ​​equivalent to "sea", that is, a component It is sur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/00D06N3/14
CPCD06N3/0011D06N3/0086D06N3/0097D06N3/14D06N2209/067D06N2209/123D06N2209/146D06N2209/1671Y02P70/62
Inventor 裘诚晨
Owner 海宁裘仕制衣有限公司
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