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Fabric for air bag

A technology for fabrics and airbags, applied in the directions of fabrics, textiles, textiles and papermaking, can solve problems such as rising costs, slippage of stitched parts, and increase in subsequent processes, achieving small slippage, preventing impact and stretching, and slipping. The effect of high resistance

Inactive Publication Date: 2012-05-23
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned patent does not describe that there are two or more filaments of different deniers in the warp and / or weft yarns of the airbag fabric, and does not involve whether the fabric has high slip resistance, so it is impossible to understand that the base fabric for the airbag is deployed. Whether the suture part slips a lot
[0006] In the patent publication number WO2005 / 045123, a method of coating a silicone composition on a fabric carrier and crosslinking is described. This method brings about an increase in cost and cannot meet the requirements of the automotive industry for cost reduction.
[0007] U.S. Patent 09 / 326368 proposes to use welded seams to improve the slip resistance between the sewn part and the base fabric, but because the fabric beads are not completely firm, the airtight structure produced by the polymer beads is damaged
Patent WO2001 / 023219 applies a new method of welding, reinforced with stitched seams, which can improve the resistance to slippage, but since this method usually involves bringing the film on the underside of the fabric into contact with the fabric treated with a second film And under high-frequency energy, polymer beads are formed at the attachment point between the two layers of fabrics, which increases the subsequent process and increases the cost

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The warp direction of the fabric adopts two filaments with different deniers. The proportion of thick-density filaments is 20%, and the difference in size is 25.0%. The thick-density filaments and the fine-density filaments are arranged in a tissue cycle (filaments with 2 to 10 are the smallest unit of a filament with different deniers, and the smallest unit of filaments with different thicknesses are arranged cyclically at intervals). The coarse-fineness filament uses nylon 66 raw yarn with a total fineness of 420 denier, a number of 136 threads, and a circular cross-section, with a breaking strength of 40.5N and a breaking elongation of 23.0%. The fine-fineness filament uses nylon 66 raw yarn with a total fineness of 315 denier, 72 pieces, and a circular cross-section, with a breaking strength of 29.6N and a breaking elongation of 23.5%. The weft filaments all use nylon 66 raw yarn with a total fineness of 420 denier, a number of 136 threads, and a circular cross-secti...

Embodiment 2

[0045] The warp filaments are all nylon 66 raw yarns with a total fineness of 315 denier, a number of 72 threads, and a circular cross section, with a breaking strength of 29.6N and a breaking elongation of 23.5%. There are more than two kinds of filaments with different deniers in the weft direction of the fabric, the proportion of thick-density filaments is 80%, and the size difference rate is 25.0%. The thick-density filaments and the fine-density filaments are arranged in a tissue cycle. The coarse-fineness filament uses nylon 66 raw yarn with a total fineness of 420 denier, a number of 136 threads, and a circular cross-section, with a breaking strength of 40.5N and a breaking elongation of 23.0%. The fine-fineness filament uses nylon 66 raw yarn with a total fineness of 315 denier, 72 pieces, and a circular cross-section, with a breaking strength of 29.6N and a breaking elongation of 23.5%. After warping in batches, a plain weave fabric is woven with a rapier loom, and dri...

Embodiment 3

[0047] Both the warp and weft directions of the fabric adopt two kinds of filaments with different deniers. The proportion of thick-density filaments is 50%, and the difference in size is 25.0%. The thick-density filaments and fine-density filaments are arranged according to the organization cycle. . The coarse-fineness filament uses nylon 66 raw yarn with a total fineness of 420 denier, a number of 136 threads, and a circular cross-section, with a breaking strength of 40.5N and a breaking elongation of 23.0%. The fine-fineness filament uses nylon 66 raw yarn with a total fineness of 315 denier, 72 pieces, and a circular cross-section, with a breaking strength of 29.6N and a breaking elongation of 23.5%. After warping in batches, a double-nozzle water jet loom was used to weave a plain weave fabric, and then dried at 80°C to obtain a fabric with a warp yarn density of 53 yarns / inch and a weft yarn density of 49 yarns / inch.

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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Abstract

The invention discloses a fabric for an air bag. Two or more filaments with different titers exist in warp yarns and / or weft yarns of the fabric, and the titer difference rate of coarse-denier filaments and fine-denier filaments is 5-50 percent. The invention provides a fabric for an air bag, and the slippage in the sewed part is very small when the fabric is spread and is further beneficial to effectively avoiding the impact and stretching of high pressure air flow to the air bag.

Description

Technical field: [0001] The present invention relates to a fabric for airbags with little slippage of the sewn part during deployment. technical background: [0002] In recent years, airbags, as one of automobile safety spare parts, have rapidly increased their installation rate with the increase of people's safety awareness. In the case of normal driving of the car, the airbag is folded and hidden in the cushion. When the car collides head-on and reaches a certain impact strength, the airbag utilizes an air generator triggered by an electronic pulse, which is within two thousandths of a second. It is rapidly inflated by high temperature, high pressure, and high-speed airflow within time, thereby weakening the strong impact caused by severe collisions to ensure the personal safety of the drivers and passengers. The airbag absorbs the kinetic energy of the passengers through the exhaust throttling damping of the airbag to achieve the purpose of protecting the passengers. [0003] ...

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 Patents(China)
IPC IPC(8): D03D1/02D03D15/00D03D15/292D03D15/43
Inventor 庄建国刘晶曹志丹土崎徹
Owner TORAY FIBER RES INST(CHINA) CO LTD
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