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Airbag fabric and manufacturing method of airbag fabric

A manufacturing method and fabric technology, applied in fabrics, textiles, papermaking, textiles, etc., can solve problems such as insufficient compression of weft yarns, increased number of loom stop times, and decreased warp tension at the selvedge

Active Publication Date: 2022-04-19
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] However, in the case of weaving a high-density fabric that pursues higher strength and low air permeability, in fabric design, for example, the warp and weft are 470dtex, the fabric density of the warp and weft, and the warp and weft are each 1 inch (2.54 cm) of 57 threads, in the method proposed in Patent Document 1, there is a problem that the weft yarn cannot be sufficiently compressed in the selvage portion, causing the warp yarn tension in the selvage portion to decrease, resulting in occurrence of Fluffing of the warp, increase in the number of stops of the loom, and deterioration of flared outward

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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  • Airbag fabric and manufacturing method of airbag fabric
  • Airbag fabric and manufacturing method of airbag fabric
  • Airbag fabric and manufacturing method of airbag fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0102] (Warp, weft)

[0103] As warp yarns and weft yarns, synthetic filaments consisting of nylon 66 with a round cross-sectional shape, monofilament 136 filaments with a single fiber fibre of 3.5 dtex, a total filament of 470 dtex, a tensile strength of 8.5 cN / dtex, and an elongation of 23.5%, and no twist are prepared.

[0104] (Weaving)

[0105] The above-mentioned yarns are used as ground yarns for warp yarns and weft yarns, and a plain weave fabric with a weaving density of 57 threads / 2.54 cm and a weft yarn of 57 threads / 2.54 cm is woven using a water-jet loom with full-width side braces. At this point, the warp tension is adjusted to 0.4cN / dtex.

[0106] At this time, on both sides of the fabric, use sare, additional yarn, and tight edge yarn. As a sareal yarn, nylon 66 monofilaments of 22detex are supplied from the planetary device to 2 strips of cloth on each side. The additional yarn uses the same 22dtex nylon 66 monofilament as the yarn, and is supplied from the cylind...

Embodiment 2

[0111] In addition to the warp yarn and weft yarn weaving density are changed to 55 / 2.54cm, the same as example 1 to make airbag fabric.

[0112] In weaving, it is possible to suppress the receding of the edges of the cloth to a small extent. In the cloth edge of the resulting fabric, the YA with a curl rate of 11% and a YB with a curl rate of 5% are repeatedly configured in a ratio of 1:1, and the curl rate of the YC that constitutes the ground part is 9%, and the resulting fabric, the loose edge is small, and the tight edge state is also uniform and good. The characteristics of the resulting fabric are shown in Table 1.

Embodiment 3

[0114] In addition to changing the weaving density of the warp yarn and the weft yarn to 46 / 2.54 cm, the same as Example 1 to make an airbag fabric.

[0115] In weaving, it is possible to suppress the receding of the edges of the cloth to a small extent. In the cloth edge of the resulting fabric, the YA with a curl rate of 8% and a YB with a curl rate of 5% are repeatedly configured in a ratio of 1:1, and the curl rate of the YC that constitutes the ground is 6%, and the resulting fabric, the loose edge is small, and the tight edge state is also uniform and good. The characteristics of the resulting fabric are 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

A fabric for an airbag is a fabric for an airbag made of synthetic fibers, at least one of the selvedges of the fabric has a weaving yarn YA and a weaving yarn YB having different crimps arranged along the warp direction, The weaving yarn YA and the weaving yarn YB are repeatedly arranged, the crimp rate CA of the weaving yarn YA and the crimp rate CB of the weaving yarn YB satisfy the relationship of CA≥CB×1.2, and the crimp The rate CB is smaller than the crimp rate CA.

Description

Technical field [0001] The present invention relates to fabrics for airbags and fabrics for airbags manufacturing methods. In more detail, the present invention relates to the weaving of high-density fabrics, in particular fabrics for air bags, effectively inhibiting the weaving edge (Japanese: ear) produced near the edge of the cloth (Japanese: ear) near the receding and matsunye (Japanese: ear たぶり) of the production of fabrics and manufacturing methods thereof. Background [0002] In cars, airbags are equipped to ensure the safety of the occupants. Airbags are the following components: in the event of a car crash, the sensor works due to the impact of the collision, and a high-temperature, high-pressure gas is generated in the airbag, through which the airbag expands instantaneously and protects the occupant's face and front head during the collision. [0003] Airbags are generally made by manufacturing and cutting the following base cloth (Japanese: base cloth) (so-called coa...

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): D03D1/02B60R21/16B60R21/235D03D5/00D03D13/00
CPCD03D1/02D03D13/00B60R21/235D03D5/00B60R2021/23509B60R2021/23514B60R2021/23542D10B2505/124D03D15/283D03D15/43
Inventor 山田陆川崎直树田中伸明
Owner TORAY IND INC