Unlock instant, AI-driven research and patent intelligence for your innovation.

Prepration method for waterborne leather

A production method, water-based technology, applied in the direction of chemical instruments and methods, lamination, layered products, etc., can solve problems such as pollution and environmental hazards

Inactive Publication Date: 2013-05-01
DONGGUAN HONGQING LEATHER PROD
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, when general leather is produced with PVC, plasticizers will be released. Leather produced with oily PU will contain a large amount of residual DMF (dimethylformamide), and plasticizers and DMF (dimethylformamide) .Hazardous to human body and environment, will cause serious pollution consequences

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1, a kind of preparation method of water-based leather of this embodiment, comprises the steps:

[0026] The first step is to cover the release paper on the knitted fabric;

[0027] The second step is to scrape and coat the water-based surface coating on the release paper and dry it with a dryer to set the shape;

[0028] The third step is to scrape and coat the water-based adhesive layer on the water-based surface layer and then dry it with a dryer;

[0029] The fourth step is to separate the release paper, and the remaining material is water-based leather.

[0030] The water-based surface layer is prepared from the following raw materials by weight percentage:

[0031] Element polyurethane resin water Water-based color paste Water-based additives Proportion (parts) 70 24 5 1

[0032] The water-based adhesive layer is prepared from the following raw materials by weight percentage:

[0033] ...

Embodiment 2

[0034] Embodiment 2, a kind of preparation method of water-based leather of this embodiment, comprises the steps:

[0035] The first step is to cover the release paper on the knitted fabric;

[0036] The second step is to scrape and coat the water-based surface coating on the release paper and dry it with a dryer to set the shape;

[0037] The third step is to scrape and coat the water-based adhesive layer on the water-based surface layer and then dry it with a dryer;

[0038] The fourth step is to separate the release paper, and the remaining material is water-based leather.

[0039] The water-based surface layer is prepared from the following raw materials by weight percentage:

[0040] Element polyurethane resin water Water-based color paste Water-based additives Proportion (parts) 70 25 8 4

[0041] The water-based adhesive layer is prepared from the following raw materials by weight percentage:

[0042] ...

Embodiment 3

[0043] Embodiment 3, a kind of preparation method of water-based leather of this embodiment, comprises the steps:

[0044] The first step is to cover the release paper on the knitted fabric;

[0045] The second step is to scrape and coat the water-based surface coating on the release paper and dry it with a dryer to set the shape;

[0046] The third step is to scrape and coat the water-based adhesive layer on the water-based surface layer and then dry it with a dryer;

[0047] The fourth step is to separate the release paper, and the remaining material is water-based leather.

[0048] The water-based surface layer is prepared from the following raw materials by weight percentage:

[0049] Element polyurethane resin water Water-based color paste Water-based additives Proportion (parts) 50 30 12 8

[0050] The water-based adhesive layer is prepared from the following raw materials by weight percentage:

[0051] ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the field of artificial leather, in particular to a preparation method for waterborne leather. The preparation method is characterized by comprising the following steps: Step I, a piece of release paper is covered on looped fabric; Step II, waterborne surface coating is coated on the piece of release paper and then is shaped via drying; Step III, a waterborne adhesive coating is coated on the waterborne surface coating and is dried; and Step IV, the piece of the release paper is separated, and as a result, the residual substance is the waterborne leather. The environmental-friendly waterborne leather prepared by the method is not provided with plasticizing agents and organic solvents which are harmful to the environment, and is not harmful to operators and users.

Description

[0001] technical field [0002] The invention relates to the field of artificial leather, in particular to a method for making water-based leather. Background technique [0003] Most people refer to synthetic leather other than real leather as artificial leather or imitation leather, such as PVC and PU leather. When making artificial leather, the first layer of leather is used. In the prior art, when making the top layer of leather, a kind of oily peeling skin is often used to compound with Erlang leather to form the effect of the top layer of leather, and it is convenient for post-processing of the leather. The skin film can be made into Crazy Horse, Fission, Niuba effects. At present, when general leather is produced with PVC, plasticizers will be released, and leather produced with oily PU will contain a large amount of residual DMF (dimethylformamide), and plasticizers and DMF (dimethylformamide) .It is harmful to the human body and the environment, and will c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14B32B37/26B32B27/18B32B27/40
Inventor 程奇
Owner DONGGUAN HONGQING LEATHER PROD