Woven fabric and process for producing same

A manufacturing method and fabric technology, applied in the direction of fabrics, textiles, papermaking, textiles, etc., can solve the problems of enlarged loose edges, reduced weavability, and reduced warp tension at the edge of the selvage, so as to reduce loose edges and uniform coating Excellent performance, excellent cutting and sewing properties

Active Publication Date: 2015-05-20
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] However, in the current pursuit of cost competitiveness, in order to adapt to the high-speed operation of the loom and the widening of the target fabric, when weaving high-density fabrics, in the means proposed in these patent documents, the operation of the loom is accompanied. As the speed increases, if the tension of the weft yarn runs (fly away) increases, the weft yarn cannot be sufficiently compressed, resulting in a decrease in the tension of the warp yarn at the edge of the selvage.
Then, there is a problem that the number of stops of the loom increases and the weavability decreases due to fluffing due to breakage of a single warp yarn.
In addition, there is a problem that loose edges also become larger

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

[0122] [warp, weft]

[0123] Synthetic fiber composites formed of nylon 6 / 6, having a circular cross-section, a single fiber fineness of 6.52 dtex, a number of filaments of 72, a total fineness of 470 dtex, no twist, a strength of 8.5 cN / dtex, and an elongation of 23.5% were prepared. Silk.

[0124] 〔weaving〕

[0125] With above-mentioned silk as ground yarn, be used for warp yarn, weft yarn, use water-jet loom, weave fabric, condition is that reed width is 227cm, cover factor 2213, the warp yarn tension force during weaving is 180cN / root, loom rotating speed is 800rpm, The warp density is 54 / 2.54cm, and the weft density is 54 / 2.54cm.

[0126] At this time, as the tight edge thread inserted into both selvage parts, it is supplied from the paper tube, and in order to manage the tension during supply, spring washers are used, with four pieces on the left and right sides, and from the vicinity of the warp beam at the rear of the loom, there will be a Two polyester false-twist...

Embodiment 2

[0134] [warp, weft]

[0135] Synthetic fiber made of nylon 6 / 6, round cross section, single fiber fineness 6.52dtex, number of filaments 72, total fineness 470dtex, untwisted, strength 8.5cN / dtex, elongation 23.5% Multifilament as warp and weft.

[0136] 〔weaving〕

[0137] Use above-mentioned silk for warp yarn, weft yarn, use water-jet loom, weave fabric, condition is that reed width is 227cm, cover factor 2213, warp yarn tension during weaving is 180cN / piece, loom speed is 800rpm, warp yarn density 54 / 2.54cm, weft density 54 / 2.54cm.

[0138] At this time, as the tight edge thread inserted into both selvage parts, it is supplied from the paper tube, and in order to manage the tension during supply, spring washers are used, with four pieces on the left and right sides, and from the vicinity of the warp beam at the rear of the loom, there will be a Each 2 polyester false-twisted textured yarns of 334dtex and 96 filaments of crimp rate 30% are paralleled to become a silk with ...

Embodiment 3

[0145] [warp, weft]

[0146] Synthetic fiber made of nylon 6 / 6, circular cross section, single fiber fineness 3.45dtex, number of filaments 136, total fineness 470dtex, untwisted, strength 8.6cN / dtex, elongation 24.7% Multifilament as warp and weft.

[0147] 〔weaving〕

[0148] Use above-mentioned silk for warp yarn, weft yarn, use water-jet loom, weave fabric, condition is that reed width is 227cm, cover factor 2213, warp yarn tension during weaving is 180cN / piece, loom speed is 800rpm, warp yarn density 54 / 2.54cm, weft density 54 / 2.54cm.

[0149] At this time, as the tight edge thread inserted into both selvage parts, it is supplied from the paper tube, and in order to manage the tension during supply, spring washers are used, with four pieces on the left and right sides, and from the vicinity of the warp beam at the rear of the loom, there will be a Each 2 polyester false-twisted textured yarns of 334dtex and 96 filaments of crimp rate 30% are paralleled to become a silk...

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

Woven fabric most suitable as base fabric for airbags is provided in which selvage waving has been reduced by inhibiting the weaving sheds of the selvage edge parts from receding during high-density weaving and which is excellent in terms of smooth processability and even coatability in the steps of scouring, setting, and coating and is excellent also in terms of cuttability and sewability. Also provided is a process for producing the woven fabric. The woven fabric employs synthetic-fiber multifilament yarns as the ground yarns. This woven fabric includes in the selvage weave parts of the edge parts: a leno yarn constituted of a filament having a fineness of 33 dtex or less; an additional yarn constituted of a filament having a fineness of 33 dtex or less; and a selvage-tightening yarn constituted of a multifilament yarn having a total fineness that is 80% or more of the total fineness of the ground yarns. In a process for producing the woven fabric, filaments with a fineness of 33 dtex or less are used as a leno yarn and an additional yarn for forming selvage weave parts at edges parts of woven fabric to conduct weaving while a multifilament yarn having a total fineness that is 80% or more of the total fineness of the ground yarns is being inserted as a selvage-tightening yarn into each selvage weave part.

Description

technical field [0001] The present invention relates to fabrics and methods for their manufacture. In more detail, it relates to a fabric suitable as an airbag base fabric and a method for producing the same. Background technique [0002] Cars are equipped with airbags to ensure the safety of occupants. [0003] When the airbag is in a car collision accident, the sensor is activated by the impact of the collision, and high temperature and high pressure gas is generated in the airbag, and the airbag is instantly inflated by the gas, protecting the occupant's face and forehead during the collision. [0004] Airbags are usually produced as follows: In order to improve heat resistance, flame retardancy, and air cutoff ( Air-blocking properties) and other properties, the base fabric coated or laminated with resin such as silicone is manufactured, cut, and sewn into a bag body. [0005] In addition, there is a so-called non-coated fabric in which synthetic fiber filament yarns ...

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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IPC IPC(8): D03D5/00D03D1/00
CPCD03D1/02D03D5/00D03D13/008D03D15/00D03D15/283D03D15/573B60R21/235B60R2021/23509B60R2021/23542D03D47/32D10B2505/124D03D15/44
Inventor 古庭裕树小原彻也
Owner TORAY IND INC
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