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Method for producing synthetic leather having air permeability

A water-soluble polyurethane and fabric technology, applied in the field of synthetic leather manufacturing, can solve the problems of non-environmental friendliness, non-breathable synthetic leather, pollutants, etc.

Active Publication Date: 2012-12-05
HYUNDAI MOTOR CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, since the surface of the fabric is completely covered by the film, as shown in the images of FIGS. 6A, 6B, 7A and 7B, the synthetic leather manufactured by the above-mentioned conventional method in which the film thus formed is bonded to the surface of the fabric by an adhesive is not Breathability similar to genuine leather
[0006] Moreover, the use of adhesives causes pollutants and odors such as volatile organic compounds (VOCs), not to mention the use of solvents that may be harmful to humans such as toluene and MEK are not environmentally friendly

Method used

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  • Method for producing synthetic leather having air permeability
  • Method for producing synthetic leather having air permeability
  • Method for producing synthetic leather having air permeability

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Embodiment Construction

[0040] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments within the spirit and scope of the invention as defined by the appended claims.

[0041] It should be understood that the term "vehicle" or "vehicular" or other similar terms as used herein includes motor vehicles in general, for example, passenger vehicles including sport utility vehicles (SUVs), buses, trucks, commercial vehicles of all kinds, including various Ships and marine craft, aircraft, etc., and include hybrid vehicles, electric vehicles, p...

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Abstract

Disclosed is a synthetic leather produced by directly coating a water-soluble synthetic resin solution on the surface of a fabric to form a film thereon such that fine gaps formed on the fabric are partially left open to have a certain degree of air permeability. In particular, a brushing process is used for brushing the surface of a fabric using a brushing machine to raise a nap. Next, a hydrolysis-resistant and flame-retardant resin solution is coated on the back of the fabric, which is opposite to the surface on which the nap is raised, to reinforce the back of the fabric. A film forming process then applies a water-soluble polyurethane resin solution to the nap raised on the surface of the fabric to form a film on the surface of the fabric thereby producing a synthetic leather product that has air permeability properties that are superior to genuine leather.

Description

technical field [0001] The present disclosure relates to a method of manufacturing synthetic leather. More particularly, the present disclosure relates to a method of manufacturing a synthetic leather suitable for vehicle interior materials such as seat covers, door trim sheets, etc., and having improved air permeability similar to genuine leather. Moreover, the synthetic leather produced by the present invention has enhanced hydrolysis and chemical resistance, enhanced flame retardancy, which genuine leather does not have, and at the same time has improved adhesion between fabric and film along with improved film texture. Background technique [0002] In general, synthetic leather is formed by forming a film on which a leather pattern or other predetermined pattern is embossed with a synthetic resin such as polyvinyl alcohol (PVA) or polyurethane (PU) on a release paper (RP), and attaching it with an adhesive. Fabrics are produced by bonding the resulting film to a woven, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14D06B15/00D06B1/02D06P1/00D06P5/08D06M15/564
CPCD06N3/14D06M15/564D06B15/00D06N2211/28D06F7/00D06N3/08D06P1/00D06B1/02D06P5/08D06N3/004D06C11/00D06C23/04D06N3/00
Inventor 姜建尹美姃吴政锡李省勋郑基然高昌锡
Owner HYUNDAI MOTOR CO LTD
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