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Fiber structure

a fiber structure and fiber technology, applied in knitting, ornamental textile articles, protective garments, etc., can solve the problems of low heat retention rate of fiber structures and bulky feeling when worn, and achieve excellent heat retention, excellent wearing comfort, and excellent heat retention

Inactive Publication Date: 2020-02-13
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a fiber structure that can be used as innerwear, such as underwear and T-shirts, with excellent heat retention and wearing comfort. This fiber structure contains viscose rayon fiber, cation dyeable polyester filament yarn, polyacrylic synthetic fiber, and spandex fiber in a specific amount range. The fiber structure has a nap formed on its front or back surface. When the fiber structure is worn and comes into contact with a human body, it quickly generates heat through the hygroscopic heat generation performance of the viscose rayon fiber, which is contained in the fiber structure in a specific amount range. The amount of viscose rayon fiber should be between 15 to 30% by mass for optimal hygroscopic heat generation performance. This invention offers a solution for creating warm and comfortable clothing in cold weather.

Problems solved by technology

However, the outer fabric of these garments is used for improving wind protection and heat retention, which causes a stuffy feeling when worn, and is not suitable to be used for innerwear due to a fabric thickness caused by the three-layer structure.
However, there is still a problem in that these fiber structures have a low heat retention rate.

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

example 1

[0054]30% by mass of viscose rayon staple (1.4 dtex, 38 mm) and 70% by mass of polyacrylic fiber staple (1.0 dtex, 45 mm) were mixed by carding to obtain a spun yarn of 30 s.

[0055]The spun yarn thus obtained, a cation dyeable polyester filament yarn (84 dtex-72 filaments), and a spandex fiber (44 dtex-2 filaments) were cross-knitted by a double knitting machine with a cylinder diameter of 76.2 cm and the number of gauges of 18 gauges / 2.54 cm to obtain a greige.

[0056]The greige thus obtained was processed by processes of heat-setting (185° C., 30 seconds), raising, scouring (70° C.), dyeing (115° C.), drying (130° C.), and heat-setting (130° C.). Only a surface where the cation dyeable polyester filament yarn was exposed to the surface layer was subjected to the raising process to obtain a fabric (fiber structure). As a result, the fabric (fiber structure) with a fabric mass of 330 g / m2 containing 45% by mass of the polyacrylic fiber, 23% by mass of the viscose rayon fiber, 27% by ma...

example 2

[0058]30% by mass of viscose rayon staple (1.4 dtex, 38 mm) and 70% by mass of polyacrylic fiber staple (1.0 dtex, 45 mm) were mixed by carding to obtain a spun yarn of 40 s.

[0059]The spun yarn thus obtained, a cation dyeable polyester filament yarn (84 dtex-96 filaments), and a spandex fiber (44 dtex) were cross-knitted by a double knitting machine with a cylinder diameter of 76.2 cm and the number of gauges of 18 gauges / 2.54 cm to obtain a greige.

[0060]The greige thus obtained was processed by processes of heat-setting (185° C., 30 seconds), raising, scouring (70° C.), dyeing (115° C.), drying (130° C.), and heat-setting (130° C.). Only a surface where the cation dyeable polyester filament yarn was exposed to the surface layer was subjected to the raising process to obtain a fabric (fiber structure). As a result, the fabric (fiber structure) with a fabric mass of 280 g / m2 containing 42% by mass of the polyacrylic fiber, 18% by mass of the viscose rayon fiber, 31% by mass of the ca...

example 3

[0062]30% by mass of viscose rayon staple (1.4 dtex, 38 mm) and 70% by mass of polyacrylic fiber staple (1.0 dtex, 45 mm) were mixed by carding to obtain a spun yarn of 40 s.

[0063]The spun yarn thus obtained, a cation dyeable polyester filament yarn (84 dtex-72 filaments), and a spandex fiber (44 dtex) were cross-knitted by a double knitting machine with a cylinder diameter of 76.2 cm and the number of gauges of 18 gauges / 2.54 cm to obtain a greige.

[0064]The greige thus obtained was processed by processes of heat-setting (185° C., 30 seconds), raising, scouring (70° C.), dyeing (115° C.), drying (130° C.), and heat-setting (130° C.). Only a surface where the cation dyeable polyester filament yarn was exposed to the surface layer was subjected to the raising process to obtain a fabric (fiber structure). As a result, the fabric (fiber structure) with a fabric mass of 300 g / m2 containing 42% by mass of the polyacrylic fiber, 18% by mass of the viscose rayon fiber, 31% by mass of the ca...

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

In order to provide a fiber structure having excellent heat retention and wearing comfort and a garment obtained by using the same, there is provided a fiber structure containing: a viscose rayon fiber in an amount of more than 15% by mass and less than 40% by mass; a cation dyeable polyester filament yarn in an amount of more than 10% by mass and less than 45% by mass; a polyacrylic synthetic fiber in an amount of more than 25% by mass and less than 60% by mass; and a spandex fiber in an amount of more than 3% by mass and less than 15% by mass, wherein the fiber structure has a nap formed on a front surface or a back surface thereof.

Description

TECHNICAL FIELD[0001]The present invention relates to a fiber structure with excellent heat retention and wearing comfort and a garment obtained by using the same, and in particular, to a fiber structure to be used preferably in underwear, T-shirts, etc. which are directly in contact with the skin of a human.BACKGROUND ART[0002]Conventionally, as a means for improving heat retention of a garment and the like, many garments having a three-layer structure including a lining, a heat retentive material such as an inner cotton, and an outer fabric are known (see Patent Document 1). However, the outer fabric of these garments is used for improving wind protection and heat retention, which causes a stuffy feeling when worn, and is not suitable to be used for innerwear due to a fabric thickness caused by the three-layer structure.[0003]In addition, as for a heat retention fiber product suitable to be used for innerwear, a fiber structure containing a viscose rayon fiber, a cation dyeable po...

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): D04B1/16D04B1/18
CPCD04B1/18D10B2201/24D10B2331/10D10B2501/02D10B2401/04D04B1/16D10B2321/08D10B2331/04D10B2403/0111D02G3/04A41B17/00A41D31/06A41D31/12
Inventor ABE, WATARUSUZUKI, AKIHIRO
Owner TORAY IND INC