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Fabric for air bag

A technology for fabrics and airbags, applied in the directions of fabrics, textiles, textiles, and papermaking, etc., can solve the problems of not involving the slippage resistance of the fabric, the slippage of the stitched part is large, and the incomprehension is not possible.

Active Publication Date: 2011-05-18
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned patents do not describe the standard deviation of the curvature radius of the warp and weft yarn bends of the fabric for airbags and the ratio of the curvature radius of the warp and weft yarn bends, and do not involve the high slip resistance of the fabric. , whether the suture part slips a lot
[0006] In the patent 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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  • Fabric for air bag
  • Fabric for air bag
  • Fabric for air bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The nylon 66 raw yarn with a total fineness of 470 dtex, a number of 72 threads, and a circular cross section is used, the breaking strength is 39.5N, and the breaking elongation is 23.5%. After the sample warping machine is warped, a plain weave fabric is woven with a water jet loom, and dried at 80°C to obtain a fabric with a warp yarn density of 53 yarns / inch and a weft yarn density of 53 yarns / inch. The properties of the base fabric were evaluated and shown in Table 1.

Embodiment 2

[0042] The nylon 66 raw yarn with a total fineness of 470 dtex, a number of 136 threads, and a circular cross-section is used. The breaking strength is 40.5N and the breaking elongation is 23.0%. After the sample warping machine is warped, a plain weave fabric with a density of 53 threads / inch is woven with a water jet loom, and the woven safety zone airbag fabric is heat-set and processed. The results of the processed airbag fabric are shown in Table 1.

Embodiment 3

[0044] The nylon 66 raw yarn with a total fineness of 350 dtex, 72 yarns and a circular cross-section is used, the breaking strength is 29.6N, and the breaking elongation is 23.5%. After being warped by a warping machine, a plain weave fabric is woven with a water jet loom, and dried at a temperature of 80°C to obtain a fabric with a warp yarn density of 59 yarns / inch and a weft yarn density of 59 yarns / inch. The properties of the base fabric were evaluated and shown in Table 1.

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 used by an airbag. On the fabric section, the ration between the standard deviation of the curvature radius of every ten consecutive warp and / or weft curly part and the medium value of the curvature radius thereof is larger than 10.0%. The invention provides the soft and low air permeability fabric used by the airbag; when the airbag is deployed, the closing part has little slippage.

Description

Technical field: [0001] The invention relates to a non-coated fabric of an airbag with small slippage of the stitched part when the airbag is deployed, softness and low air permeability. technical background: [0002] In recent years, airbags, as one of automobile safety spare parts, have rapidly increased their installation rate with the improvement of people's safety awareness. When a car crashes, the driver and passengers will hit the steering wheel and other interior parts at high speed and be injured. The installation of protective systems such as seat belts and airbags in the car can restrain passengers on the seat in the event of a collision, limit the movement distance of the passenger's head and chest, and avoid violent collisions with interior parts, thereby playing a protective role. 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] Airbags can be cl...

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 庄建国曹志丹土崎徹
Owner TORAY IND INC