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Woven or knitted fabric containing two different types of yarns and clothing containing the fabric

a technology of woven or knitted fabric and yarn, which is applied in the direction of knitting, ornamental textile articles, weaving, etc., can solve the problems of small inferior air permeability, and uncomfortable feeling, so as to facilitate the air permeability of the fabric, reduce the amount of deformation in the fiber configuration, and minimize the change in the dimension and configuration of the fabric

Inactive Publication Date: 2009-10-22
TEJIN FIBERS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008]An object of the present invention is to provide a woven or knitted fabric containing two different types of yarns and clothing containing the same wherein, although the opening area of the fabric increases as it absorbs moisture to facilitate the air-permeability of the fabric and the opening area of the fabric decreases as it becomes dry to reduce the air-permeability, the change in dimension and configuration of the fabric is minimized.
[0009]The inventors of the present invention have diligently studied to achieve the above-mentioned object and found that it is possible to minimize the change in dimension of a woven or knitted fabric obtained from a two types of yarns different from each other in self-elongating property upon absorbing water, by providing a specific difference in yarn length in the weave or knit stitch, wherein the change in dimension of the fabric becomes less between the wet state and the dry state, and the opening area of the fabric increases due to the water absorption (moisture absorption) to facilitate the air-permeability, while the opening area of the fabric decreases when dried to lower the air-permeability. Based on such knowledge, the present invention has been completed.

Problems solved by technology

There has been a problem in that, when a woven or knitted fabric of synthetic fiber or natural fiber is applied to a clothing wherein sweat may be produced during the use, such as sportswear or underwear, an uncomfortable feeling occurs due to the dampness, and the inferior air-permeability, by caused by the sweat.
However, in the side-by-side type conjugated fiber, an amount of deformation in fiber configuration is small even if a large amount of moisture is absorbed, whereby the performance thereof has not been sufficiently exhibited.
Further, there is another problem in that special production facilities are necessary for simultaneously spinning the two kinds of polymers, resulting in increase in the production cost.
However, this woven or knitted fabric is problematic in that the fabric dimension is becomes unstable because the fabric largely changes from the planar structure to the three-dimensional structure when absorbing moisture.
In addition, as a yarn twisting process is necessary, there is a problem in that the production cost rises.

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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  • Woven or knitted fabric containing two different types of yarns and clothing containing the fabric
  • Woven or knitted fabric containing two different types of yarns and clothing containing the fabric
  • Woven or knitted fabric containing two different types of yarns and clothing containing the fabric

Examples

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Effect test

example 1

[0156]A polyetherester polymer consisting of 49.8 parts by mass of hard segments formed from polybutylene terephthalate and 50.2 parts by mass of soft segments formed from polyoxyethylene glycol having a number-average molecular weight of 4,000 was melted at 230° C. and the resultant melt was extruded through a spinneret for spinning a monofilament at an extrusion rate of 3.05 g / min. Streams of this melt-extruded polymer were taken up through two godet rollers at a speed of 705 m / min and then wound at a speed of 750 m / min (so that a winding draft is 1.06), resulting in an elastic yarn (1) having a high water-absorbing and self-elongating property and a yarn count of 44 dtex / one filament. The self-elongation of this yarn (1) upon absorbing water was 10% in the axial direction of the filament, and the shrinkage thereof in boiling water was 8%.

[0157]Also, a conventional polyethylene terephthalate multifilament yarn (84 dtex / 24 filaments) having a shrinkage of 10% in boiling water and a...

example 2

[0159]A covered yarn (composite yarn) was produced from a core yarn consisting of the yarn (1) having a high water-absorbing and self-elongating property which is the same that as used in Example 1, and a sheath yarn consisting of the yarn (2) formed from polyethylene terephthalate multifilament (33 dtex / 12 filaments) having a shrinkage of 10% in boiling water and a self-elongation of 1% in a wet state, at a draft of the core yarn of 30% (1.3 times), with the number of turnings of the sheath yarn of 350 / m (in the Z direction). The covered yarn a and a polyethylene terephthalate multifilament yarn b (84 dtex / 72 filaments) having a shrinkage in boiling water of 8% and a self-elongation of 1% or less were fed to a 24 gauge double circular knitting machine to produce a knitted fabric having a knitting structure as shown in FIG. 8 at densities of 38 courses / 2.54 cm and 32 wales / 2.54 cm. This knitted fabric was subjected to the dyeing and finishing treatment. A ratio A / B in mean yarn leng...

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 woven or knitted fabric, formed from two types of yarns different in self-elongating property upon absorbing water and capable of facilitating the air-permeability when wetted with water, is constituted so that a ratio A / B of a mean length A of high water-absorbing, self-elongating yarns (1) to a mean length B of lower water-absorbing, self-elongating yarns (2) arranged in the same direction as that of the yarn (1) property is adjusted to 0.9 or less, the wetted fabric exhibits a change in roughness of 5% or more.

Description

CROSS REFERENCE[0001]This is a Divisional application of U.S. application Ser. No. 10 / 552,826 filed on Oct. 7, 2005, which is a 371 of PCT Application No. PCT / JP04 / 008904 filed on Jun. 17, 2004, which applications are incorporated herein by reference in their entirety.TECHNICAL FIELD[0002]The present invention relates to a woven or knitted fabric containing two different types of yarns and a clothing containing the fabric. More specifically, the present invention relates to a woven or knitted fabric containing two different types of yarns, wherein the opening area of the fabric increases as it absorbs water to facilitate the air-permeability of the fabric, while the opening area of the fabric decreases as it becomes dry to reduce the air-permeability, and also to a clothing containing the fabric.[0003]The woven or knitted fabric containing two different types of yarns according to the present invention is free from the uncomfortable feeling caused by wetting as well as inferior air-...

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 Applications(United States)
IPC IPC(8): A41D1/00D03D15/00D04B1/00D04B1/14D04B21/14D06C11/00A41B9/00A41B17/00A41D31/00D02G3/28D02G3/32D02G3/44D04B1/16
CPCA41B17/00D10B2403/0331A41D31/00A41D31/02A41D2400/20D02G3/28D02G3/32D02G3/44D03D15/00D03D15/0027D03D15/0083D04B1/16D10B2201/02D10B2201/24D10B2201/28D10B2321/022D10B2321/06D10B2321/10D10B2331/04D10B2401/02D10B2401/046D10B2401/061D10B2403/0114D10B2501/00D10B2501/02D04B21/16D10B2403/023A41B2400/60D10B2403/02Y10T442/3065Y10T442/3179Y10T442/444Y10T428/2395Y10T442/3163Y10T442/45Y10T442/313Y10T442/30Y10T442/438Y10T442/3146Y10T442/3976Y10T442/40Y10T442/3154A41D31/145D03D15/47D03D15/283
Inventor YASUI, SATOSHIMIZOHATA, SEIJIYAMAGUCHI, TAKESHITANAKA, KENGO
Owner TEJIN FIBERS LTD
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