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Fabric for airbag and method for manufacturing same

A technology of airbag fabric and nylon fiber, which is applied in the direction of fabric, fabric elongation, textiles and papermaking, etc. It can solve the problem of gas leakage, improve leakage prevention and air tightness, ensure durability and dimensional stability Sexuality, the effect of optimizing the wrinkle rate

Inactive Publication Date: 2015-03-11
KOLON IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because of this, it is difficult to simply extrapolate the gas flow and gas leakage in the actual deployed state from the Static Air Permeability (SAP) which has become necessary and measured in the fabric state

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
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  • Fabric for airbag and method for manufacturing same
  • Fabric for airbag and method for manufacturing same
  • Fabric for airbag and method for manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

example 1-7

[0066] Under the conditions (such as the type of yarn, weaving density, weaving tension, tentering heat treatment temperature, etc.) Uncoated fabric used as a woven fabric for airbags.

[0067] The physical properties of the airbag fabric were measured according to the following methods, and the measured physical properties are summarized in Table 1 below.

[0068] a) Dynamic air permeability index (EXP)

[0069] The dynamic air permeability index (EXP) of uncoated fabrics was measured according to the ASTM D 6476 method of the American Society for Testing and Materials.

[0070] Measured by adjusting the peak pressure of the compressed air pressure to 100kPa, setting the lower limit pressure of the air permeability to 30kPa and the upper limit pressure to 70kPa, and measuring the slope between the upper limit and the lower limit when measuring under the condition of a head size of 400cc The dynamic air permeability index (EXP) of the fabric.

[0071] b) Cover factor (CF) ...

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PUM

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Abstract

The present invention relates to fabric for an airbag and to a vehicle airbag comprising same. Particularly, the present invention relates to fabric for an airbag, to a method for manufacturing same, and to a vehicle airbag comprising same, wherein the fabric consists of one or more types of fibers selected from the group consisting of a nylon-based fiber, a polyester-based fiber, a polyolefin-based fiber, and an aramid-based fiber. The fabric has a cover factor of 1,500 to 2,500, and a dynamic air permeability exponent (EXP) of 0.9 to 1.6 measured by the method of American Society for Testing and Materials (ASTM) standard D6476.

Description

technical field [0001] The present invention relates to fabrics for airbags and their manufacturing methods. More particularly, the present invention relates to an airbag fabric having excellent durability to withstand a momentary force when the airbag is inflated, a manufacturing method of the airbag fabric, and an airbag for a vehicle including the airbag fabric. pressure, and excellent internal pressure maintenance performance. Background technique [0002] In general, an airbag refers to a vehicle that senses the impact of a collision on the vehicle with an impact sensor during a frontal collision of a vehicle traveling at a speed of about 40km / h or more, and then explodes gunpowder to supply gas into the airbag cushion. A device that inflates the airbag cushion to protect the driver and passengers. The typical structure of the airbag cushion system is as follows: figure 1 shown. [0003] Such as figure 1 As shown, a typical airbag cushion system is configured to in...

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): D03D1/02B60R21/16
CPCD10B2321/02D10B2331/021B60R2021/23509B60R21/235D03D1/02D10B2331/02D10B2331/04B60R21/16B60R2021/23542D10B2505/124Y10T442/30Y10T442/3065B60R21/23B60R21/232D06C3/00D06C29/00
Inventor 尹靖勋金宰亨金起定陈慧承李相牧郭东震
Owner KOLON IND INC
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