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Polyurethane artificial leather processing technology

A processing technology and artificial leather technology, which is applied in the field of polyurethane artificial leather processing technology, can solve the problems of complex process and poor leather air permeability, and achieve the effects of excellent physical and chemical properties, wide range of uses, and variety of colors

Inactive Publication Date: 2014-01-15
FUJIAN HAOPAI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process is complicated, and the leather produced has poor air permeability

Method used

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Embodiment Construction

[0020] In order to describe in detail the technical content, structural features, achieved objectives and effects of the present invention, the following will be described in detail in conjunction with the embodiments.

[0021] The polyurethane artificial leather processing technology comprises the following steps:

[0022] (S1) Raw material preparation: prepare polyurethane resin, calcium carbonate powder, wood powder, color paste, DMF and leather auxiliaries and stir evenly, and vacuumize and defoam, and filter to remove large insoluble particles;

[0023] The additives here include but are not limited to defoamers, penetrating agents, leveling agents, and other functional additives such as: hydrolysis resistance, flame retardant, discoloration, antibacterial, temperature adjustment, UV resistance, etc.;

[0024] (S2) Coating of raw materials: Clean the base cloth and dry it, and evenly coat the above-mentioned uniformly stirred raw materials on one side of the base cloth, i...

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Abstract

The invention discloses a polyurethane artificial leather processing technology which comprises the following steps: firstly blending and uniformly stirring polyurethane resin, calcium carbonate powder, wood powder, color paste, DMF (dimethyl formamide) and a leather auxiliary, coating the mixture on one surface of a piece of base cloth, repeatedly washing with water and extruding, coating the mixture of the resin, the color paste, the DMF and methyl ester on one surface with a pattern of release paper, adhering the pattern surface of the release paper and a coating surface of a wet process base, drying at the temperature of 130 DEG C, cooling, and separating the release paper from the base to obtain the artificial leather. The leather produced through the processing technology provided by the invention has excellent air permeability and moisture penetrability.

Description

technical field [0001] The invention relates to a polyurethane artificial leather processing technology. Background technique [0002] Since the advent of artificial leather in the 1940s, because of its appearance, feel, hygiene and other aspects to meet people's needs, the demand has been increasing, greatly expanding the application field of artificial leather, and the technology and technology have been developed rapidly. [0003] Chinese patent ZL98100526.8 discloses a method for making high-strength thermoplastic polyurethane artificial leather, which is made of thermoplastic polyurethane elastomer resin (TPu) 100PHR adding polyolefin 0~30PHR, slip agent 0~20PHR, filler 0~20PHR, modified 0~20PHR of quality agent and 0~15PHR of colorant are made into batch materials. After mixing and melting at 100℃~240℃, the batch materials are selected through one-layer, two-layer, three-layer or multi-layer co-extrusion machines and calenders. The film-forming machine is used to obta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14B32B37/26B32B27/18B32B27/40C08L75/04C08L97/02C08K3/26
Inventor 夏聪燎郑劼
Owner FUJIAN HAOPAI IND
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