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A kind of production method of superfine fiber synthetic leather with density gradient structure

A superfine fiber and density gradient technology, applied in the production field of superfine fiber synthetic leather, can solve the problems of low apparent density and influence of simulation degree, and achieve the effect of plump and soft hand feeling, improved quality and dense surface

Active Publication Date: 2018-06-22
ANAN CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current microfiber synthetic leather products have a uniform density distribution in structure, and the apparent density is lower than that of genuine leather, so it has a greater impact on the degree of simulation

Method used

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  • A kind of production method of superfine fiber synthetic leather with density gradient structure
  • A kind of production method of superfine fiber synthetic leather with density gradient structure
  • A kind of production method of superfine fiber synthetic leather with density gradient structure

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Embodiment Construction

[0017] figure 1 It is a schematic diagram of step 1 in the present invention

[0018] figure 2 It is a schematic diagram of step 2 in the present invention

[0019] image 3 It is a schematic diagram of step 3 in the present invention

[0020] Figure 4 It is a schematic diagram of step 4 in the present invention

[0021] Figure 5 It is a schematic diagram of step 5 in the present invention

[0022] Figure 6 It is a schematic diagram of step 6 in the present invention

[0023] A kind of production method of the superfine fiber synthetic leather with density gradient structure of the present invention comprises the steps:

[0024] 1. Sea-island superfine fiber processing: firstly, the sea component slices (such as polyethylene, water-soluble polyester, water-soluble cellulose and polypropylene slices) and the island component slices (such as polyamide slices, polyester slices) are two The raw materials are made into sea-island superfine fibers through the spinning ...

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Abstract

The invention relates to the technical field of ultrafine fiber synthetic leather, in particular to a production method of ultrafine fiber synthetic leather with a density gradient structure. This production method introduces the application of solvent-free polyurethane, so that solvent-free polyurethane penetrates into the surface layer of superfiber non-woven fabric to form a dense layer, and then implements impregnation, weight reduction, and finishing processes, and finally forms a dense surface layer similar to leather. A structure with a density gradient .

Description

technical field [0001] The invention relates to the technical field of ultrafine fiber synthetic leather, in particular to a production method of ultrafine fiber synthetic leather with a density gradient structure. Background technique [0002] Microfiber synthetic leather is currently the most high-end artificial synthetic material that replaces genuine leather, and has incomparable advantages in terms of physical and chemical properties, simulation performance, and wearing comfort. However, the current microfiber synthetic leather products have a uniform density distribution in structure, and the apparent density is lower than that of genuine leather, so it has a greater impact on the degree of simulation. The density structure of the dermis has a gradient, with the highest surface density and then gradually decreasing downwards. Therefore, the surface of the leather is dense and the pattern is fine, while the base part is soft and soft. The comprehensive effect obtained ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/14D06N3/00D04H1/4382
CPCD04H1/4382D06N3/00D06N3/14D04H1/4383D06N3/0011D06N3/007
Inventor 顾宇霆张鹏林天送
Owner ANAN CHINA
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