Coated fabric for airbag

A technology of coated fabrics and airbags, applied in the direction of fabrics, fabric elongation, vehicle safety arrangements, etc., can solve the problems of difficult internal pressure, low elongation of liquid silicone rubber, etc., and achieve excellent mechanical properties and excellent internal pressure The effect of maintaining performance

Inactive Publication Date: 2015-07-29
KOLON IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the coating process of existing coated fabrics, due to the low elongation of liquid silicone rubber, when unfolded, the silicone coating on the seam area is torn or holes are generated to generate air leakage, thereby make it difficult to maintain internal pressure for a certain period of time

Method used

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  • Coated fabric for airbag
  • Coated fabric for airbag
  • Coated fabric for airbag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-7

[0072] The gray cloth for the airbag is woven using 420 denier nylon 66 fibers woven by a jacquard machine. Here, the fabric density is adjusted to a warp density of 53 threads / inch and a weft density of 46 threads / inch.

[0073] The gray cloth undergoes a scouring process by passing through a chemical bath and a water bath, followed by a tentering process under a temperature condition of 160° C. to 180° C., thereby manufacturing an uncoated fabric for an airbag. Here, the fabric density of the woven fabric after scouring was 57 yarns / inch in warp and 49 yarns / inch in weft.

[0074] The uncoated fabric thus produced was coated with a silicon coating agent based on liquid silicone rubber (LSR) resin in an air-knife manner so that the silicone rubber coating amount was 55 g / m 2 up to 95g / m 2 , then dry. after drying,

[0075] The fabric was cured at a vulcanization temperature of 190° C. for 300 seconds to produce a silicon coated fabric for an airbag.

[0076] The elongati...

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Abstract

The present invention relates to a coated fabric for an airbag. Particularly, the present invention provides a coated fabric for an airbag on a surface of which a coating layer including liquid silicone rubber having elongation of 1000% or more, as measured according to Korean Industrial Standards (KS) M 6518, is included, and a method of manufacturing the same. According to the present invention, the elongation of liquid silicone rubber is excellent so that damage to the fabric for an airbag is minimized under a severe condition of high temperature and high pressure is minimized, and thus the airbag may have excellent inflation and deployment performance, and simultaneously provides excellent storage, dimensional stability, and airtightness effect, thereby safely protect passengers even upon vehicle collision and rollover.

Description

technical field [0001] The present invention relates to a coated fabric for an airbag, and more particularly, the present invention relates to a coated fabric for an airbag, wherein the surface of the fabric is coated with a certain liquid silicone rubber so that the Coated fabrics for airbags have excellent mechanical properties as well as excellent internal pressure maintenance properties. Background technique [0002] Generally, an airbag means that when a vehicle traveling at a speed of about 40km / h or more occurs in a frontal collision, the collision sensor is used to sense the impact of the collision, and then the gunpowder is detonated to supply gas to the airbag, thereby enabling Airbags are devices that inflate to protect drivers and passengers. The typical structure of the airbag system is as follows: figure 1 shown. [0003] Such as figure 1 As shown, a typical airbag system is configured to include: an airbag cushion module 100, installed on a steering wheel ...

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
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/77D06M15/693D06M101/30
CPCD06N3/128B60R21/235B60R2021/23514D06N3/0006D06N3/0034D06N3/0036D06N2211/268D06N3/0038Y10T442/20Y10T442/2861Y10T442/2893Y10T442/2902Y10T442/291D06M15/693D06M11/77B60R2021/23519B60R2021/23542D03D1/02D06B1/00D06C3/00D06C11/00D10B2321/02D10B2331/02D10B2331/021D10B2331/04
Inventor 陈慧承金起定金宰亨金亨根尹靖勋李相牧郭东震金熙峻
Owner KOLON IND INC
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