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A kind of preparation method of polyurethane synthetic leather for microfiber sofa furniture

A technology of polyurethane and synthetic leather, which is applied in the preparation of polyurethane synthetic leather for sofa furniture and the preparation of polyurethane synthetic leather for microfiber sofa furniture. Healthy environment, simple production process, and the effect of improving fullness

Active Publication Date: 2018-12-18
ANHUI ANLI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Instead, the application of polyurethane synthetic leather is increasing year by year, especially the superfiber products, whose perfect flexibility, texture and incision are close to genuine leather, but the production of superfiber synthetic leather uses sea-island fiber cloth base, and requires alkali reduction. Benzene volume or benzene reduction, the production process is relatively complicated, the cost is high, and there are problems such as benzene volatilization and difficult recovery in the reduction process, which has a certain impact on the environment and human health, thus affecting its promotion and application to a certain extent

Method used

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  • A kind of preparation method of polyurethane synthetic leather for microfiber sofa furniture
  • A kind of preparation method of polyurethane synthetic leather for microfiber sofa furniture
  • A kind of preparation method of polyurethane synthetic leather for microfiber sofa furniture

Examples

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Effect test

Embodiment 1

[0031] A kind of microfiber sofa furniture polyurethane synthetic leather of the present invention, concrete implementation comprises the following steps (wherein material components are counted by weight):

[0032] (1) Select the double-sided fiber-fiber fleece base as the wet-process production base fabric, the fiber length of the long-haired side is 3.5-5mm, and the fiber density is 3500-4500 fibers / cm 2 , the opening length of the short hair surface is 1.5-2mm, and the opening density is 5000-6000 fibers / cm 2 , and the long and short hairs are opposite to each other, and the thickness of the cloth base is 1.0-1.2mm;

[0033] (2) Pre-impregnation treatment

[0034] Use non-porous, non-film-forming impregnating resin to pre-impregnate the cloth base. The long-haired side is the front and smooth. The ratio of pre-impregnated materials is:

[0035] Dimethylformamide 300

[0036] SW-4028 100 (solid content 25%, modulus 30)

[0037] Color paste 2

[0038] Coagulation after ...

Embodiment 2

[0053] A kind of microfiber sofa furniture polyurethane synthetic leather of the present invention, concrete implementation comprises the following steps (wherein material components are counted by weight):

[0054] (1) Select the double-sided fiber-fiber fleece base as the wet-process production base fabric, the fiber length of the long-haired side is 3.5-5mm, and the fiber density is 3500-4500 fibers / cm 2 , the opening length of the short hair surface is 1.5-2mm, and the opening density is 5000-6000 fibers / cm 2 , and the long and short hairs are opposite to each other, and the thickness of the cloth base is 1.0-1.2mm;

[0055] (2) Pre-impregnation treatment

[0056] Use non-porous, non-film-forming impregnating resin to pre-impregnate the cloth base. The long-haired side is the front and smooth. The ratio of pre-impregnated materials is:

[0057] Dimethylformamide 300

[0058] SW-4028 100 (30% solid content, 40 modulus)

[0059] Color paste 5

[0060] Coagulation after ...

Embodiment 3

[0075] A kind of microfiber sofa furniture polyurethane synthetic leather of the present invention, concrete implementation comprises the following steps (wherein material components are counted by weight):

[0076] (1) Select the double-sided fiber-fiber fleece base as the wet-process production base fabric, the fiber length of the long-haired side is 3.5-5mm, and the fiber density is 3500-4500 fibers / cm 2 , the opening length of the short hair surface is 1.5-2mm, and the opening density is 5000-6000 fibers / cm 2 , and the long and short hairs are opposite to each other, and the thickness of the cloth base is 1.0-1.2mm;

[0077] (2) Pre-impregnation treatment

[0078] Use non-porous, non-film-forming impregnating resin to pre-impregnate the cloth base. The long-haired side is the front and smooth. The ratio of pre-impregnated materials is:

[0079] Dimethylformamide 300

[0080] SW-4028 100 (28% solid content, 35 modulus)

[0081] Color paste 3

[0082] Coagulation after ...

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Abstract

The invention discloses a preparation method of polyurethane synthetic leather for microfiber sofa furniture, and belongs to the technical field of artificial synthetic leather. The method specifically and sequentially includes the steps of conducting pre-impregnation treatment, secondary impregnation and coating treatment, handfeel filling impregnation, leather kneading and other processes to prepare a microfiber bottom blank, and then conducting dry-method veneering, surface treatment, grain kneading and other post-treatment processes to prepare the finished product. The prepared product is the polyurethane synthetic leather, with flexibility, texture and incisions like those of real leather, for microfiber sofa furniture. The production processes of the product do not need to be reduced, operation is easy, and the production cost is 1 / 2 that of an existing microfiber product.

Description

technical field [0001] The invention relates to a method for preparing polyurethane synthetic leather for sofa furniture, in particular to a method for preparing polyurethane synthetic leather for superfiber sofa furniture, and belongs to the technical field of artificial synthetic leather. Background technique [0002] With the constraints of the natural environment and the strengthening of animal protection awareness around the world, especially the strengthening of environmental protection awareness, the application of leather in the sofa furniture industry is decreasing year by year. Instead, the application of polyurethane synthetic leather is increasing year by year, especially the superfiber products, whose perfect flexibility, texture and incision are close to genuine leather, but the production of superfiber synthetic leather uses sea-island fiber cloth base, and requires alkali reduction. Its production process is relatively complicated and its cost is high, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/14D06N3/00
CPCD06N3/0004D06N3/0075D06N3/0077D06N3/0086D06N3/145D06N2211/14D06N2211/28
Inventor 陈宇王锐林叶奇泉张吕香王燕武黄万里
Owner ANHUI ANLI MATERIAL TECH
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