Two-way warp knitted fabric

A technology of warp-knitted fabrics and warp-knitted structures, which is applied in warp-knitting, knitting, textiles, and papermaking. It can solve the problems of curling and damage to the balance of expansion and contraction, and achieve the effect of overcoming curling and inhibiting curling.

Inactive Publication Date: 2001-12-12
ASAHI KASEI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the heat setting of the polytrimethylene terephthalate fiber is insufficient, the setting at a high temperature above 180°C will destroy the expansion and contraction balance, resulting in curling

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

[0070] Polytrimethylene terephthalate of 40dtex / 34f is used on the front side, and polyurethane elastic fiber of 22dtex (manufactured by Asahi Kasei Co., Ltd., trade name Roika) is used on the back side, and warped at a draft ratio of 80%. Elastic fiber, woven into half furrow tissue.

[0071] Knitting machine: 28 needles / 2.54cm tricot knitting machine (カ-ルマィャ-company)

[0072] Organization: Front 10 / 23, Back 12 / 10

[0073] Yarn feeding length: front 160mm back 90mm

[0074] Number of columns on the machine: 76 columns / 2.54cm

[0075] The knitted fabric obtained under these knitting conditions was subjected to scouring at 90° C. for 1 minute and presetting at 190° C. for 45 seconds. The density setting during pre-setting is to set the density ratio of the number of columns / number of rows to be 1.83. After heat setting, it is dyed with a liquid flow dyeing machine. Afterwards, the same 110 columns / 2.54cm, 60 rows / 2.54cm as the pre-setting, that is, the final setting is car...

Embodiment 2—5

[0076] Relative to embodiment 1, the front side feeding yarn is shortened to make a high-density fabric, and the density ratio of the set column / row is 1.93. In addition, the sample is made according to embodiment 1. Embodiment 3 is that relative to Embodiment 1, the yarn feeding on the front side is elongated to make a fabric with reduced density, and the density ratio of the set column / row is 1.55. In addition, a sample is made on the basis of Embodiment 1. Embodiment 4 is to make the high-density fabric by shortening the feeding yarn on the reverse side of the fabric relative to Embodiment 1. The density ratio of the number of columns / rows is set to be 1.81. In addition, a sample is made on the basis of Embodiment 1. Embodiment 5 is that relative to embodiment 1, the reverse side of the fabric is fed with longer yarns, and is woven into a low-density fabric. The density ratio of the number of columns / rows is set to be 1.70. In addition, a sample is made on the basis of embod...

Embodiment 6

[0081] The polytrimethylene terephthalate fiber of 40dtex / 34f is used as the front side, and the polyurethane type elastic fiber warped under the condition of 80% with a draft ratio of 22dtex on the back side (Asahi Kasei Industry Co., Ltd., trade name Roika) is woven into Half border tissue.

[0082] Knitting Machine 36 Needle / 2.54cm Tricot Knitting Machine

[0083] Weave Front 10 / 23 Back 12 / 10

[0084] Yarn feeding length front 126mm back 76mm

[0085] The number of columns on the machine is 80 columns / 2.54cm

[0086] The fabric is subjected to relaxation and scouring at 90°C for 1 minute, and presetting at 190°C for 45 seconds. The density during pre-setting is set as: the density ratio of the number of columns / rows is 2.25, 180 columns / 2.54cm×80 rows / 2.54cm. After heat setting, it is dyed with a liquid flow dyeing machine. Then adopt the same conditions as pre-setting 157 columns / 2.54cm×70 rows / 2.54cm for final shaping. The grammage of the two-way warp knitted fabric...

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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PUM

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Abstract

A two-way warp knitted fabric of warp knit structure prepared by cross-knitting a polytrimethylene terephthalate fiber as a front yarn and an elastomer fiber as a back yarn, which has a knitted fabric density ratio represented by the following formula (I): knitted fabric density ratio = number of course/2.54 cm / number of wale/2.54 cm of 1.55 to 2.35. This knitted fabric is a stretchable ground material of knitted fabric for clothes which is suppressed in curl, has a soft feeling and suffers no yellowing.

Description

technical field [0001] The present invention relates to a warp knitted fabric exhibiting elasticity in two directions. Background technique [0002] The elongation direction of elastic fabric (knitted fabric) exists in the warp direction and weft direction, which is called two-way elastic fabric (knitted fabric) (see "Fiber Handbook" [2nd Edition: Textile Society: Maruzen Co., Ltd. Heisei 7 February Published on the 15th] pages 139-140, table 1.74 on page 139, see Japan Textile Management Association "Basic Knowledge of Fiber Products" Japan Clothing Management Association, pages 41-49 [1985]) warp knitted fabric interwoven with elastic yarn Generally known as two-way warp knitted fabrics. Nylon fibers are interwoven with elastic fibers, and elastic yarns form knitted loops for the following products: shorts for underwear, women's underwear, garters, bras, swimsuits for sports, skating and skiing suits, and elastic for diving. Diving suits, cycling shorts, coatings for out...

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(China)
IPC IPC(8): D04B21/00D04B21/18
CPCD04B21/18D04B21/00
Inventor 吉田裕司小野田时雄
Owner ASAHI KASEI KK
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