Fabric for airbag, fully moulded airbag as well as manufacturing method thereof

An airbag, fully formed technology, used in vehicle safety arrangements, fabrics, textiles and papermaking, etc., to achieve the effect of reducing costs and good technical results

Active Publication Date: 2014-01-29
KOLON NANJING SPECIAL TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention solves the problems of dimensional stability, flatness, air tightness,

Method used

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  • Fabric for airbag, fully moulded airbag as well as manufacturing method thereof
  • Fabric for airbag, fully moulded airbag as well as manufacturing method thereof
  • Fabric for airbag, fully moulded airbag as well as manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Nylon 66 with a dry heat shrinkage rate of 4.1% and a boiling water shrinkage rate of 4.3% is used as the warp yarn, and a polyester with a dry heat shrinkage rate of 2.2% and a boiling water shrinkage rate of 1.5% is used as the weft yarn. The CEG content in the polyester is 20meq / kg. After the woven fabric is treated with an aqueous solution containing a refining agent at 60°C for 2 minutes, it is dried and shaped in an oven heated by hot air at 150°C for 1 minute, and then coated with 45g / ㎡ of silica gel. In this process, the warp and weft dimensional change rates of the fabric are 3% and 2.5%, respectively, and the strength retention rate of the fabric after heat and humidity aging is above 97%.

[0037] The physical properties of the yarns used in Example 2-Example 4 and Comparative Example 1 and Comparative Example 2 are shown in Table 1, and the physical properties of the fabric obtained using the same method as in Example 1 are shown in Table 2.

[0038]

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Abstract

The invention relates to a fabric for an airbag, wherein the warps and wefts of the fabric consist of polyamide or polyester fibers. The fabric is characterized in that the dry and wet hot shrinking percentages of the polyamide or polyester fibers are below 5%, and the size rate of change of the fabric for the airbag after hot water and hot wind treatment as well as coating of 35-115g/m<2> silica gel resin on the surface of the fabric is less than 3%. The invention further relates to a fully moulded airbag comprising the fabric for the airbag as well as a manufacturing method thereof. On the basis of lowering the cost, the invention solves the problems of size stability, smoothness, air impermeability, high strength, ageing resistance and the like of existing fully moulded airbags.

Description

technical field [0001] The invention relates to a fabric for an airbag. The fabric for the airbag uses polyester yarns to partially or completely replace traditional nylon yarns, and all performance indexes of the airbag meet the requirements. The present invention also relates to a fully formed airbag comprising the fabric for an airbag and a manufacturing method thereof. Background technique [0002] In recent years, automobile airbags have provided greater protection to humans during automobile collisions and reduced injuries. People have higher and higher requirements for airbags, such as good dimensional stability, flatness, airtightness, high strength, aging resistance and low cost. Polyamide fibers (such as nylon 66) can meet all indicators, but they are expensive. The price of polyester is relatively cheap, and its various properties can meet the requirements of airbag fabrics, but its performance will decline after aging due to molecular chain breakage in high-t...

Claims

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Application Information

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IPC IPC(8): D06M15/643D03D1/02D03D15/00D03D3/02B60R21/235D06M101/34D06M101/32D03D15/283D03D15/567
Inventor 张克迪庄坤裴仁稷
Owner KOLON NANJING SPECIAL TEXTILE
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