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Fabric and method for its manufacture

A manufacturing method and fabric technology, applied in the direction of fabrics, textiles, papermaking, textiles, etc., can solve the problems of lower warp yarn tension, lower weaving properties, and larger loose edges in the selvage portion, and achieve excellent cutting and sewing properties. Excellent uniform coating properties and the effect of reducing loose edges

Active Publication Date: 2016-03-16
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 coefficient 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. In order to manage the tension during the supply, spring washers are used, with four pieces on the left and right sides. From the vicinity of the warp beam behind the loom, the Two polyester false-twisted textured yarns o...

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

The present invention provides a fabric that reduces loose edges by suppressing the weaving shed retraction at the end of the selvage when weaving a high-density fabric, and is excellent in processing passability and uniform coating properties in the steps of scouring, setting, and coating. , and furthermore, a fabric which is excellent in cutting and sewing properties as a base fabric for an airbag, and a method for producing the same. Fabric, which is a fabric made of synthetic fiber multifilament as ground yarn, wherein the selvedge portion at the end of the fabric contains: leno yarn consisting of filaments with a fineness of 33 dtex or less, long filaments with a fineness of 33 dtex or less Additional yarns made of yarns, and tight edge yarns made of multifilaments having a total fineness of 80% or more relative to the total fineness of the ground yarn. Its production method is, in order to form the selvedge part at the end of the fabric, use filaments with a fineness of 33 dtex or less as leno yarns and additional yarns, and then use a total fineness of 80% or more relative to the total fineness of the above-mentioned ground yarns. Multifilaments of fineness are inserted into the above-mentioned selvedge portion as tight edge yarns, and weaving is performed simultaneously.

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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Patent Type & Authority Patents(China)
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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