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Nonwoven Fabric

A technology of non-woven fabrics and composite fibers, applied in non-woven fabrics, textiles and papermaking, conjugated synthetic polymer artificial filaments, etc., can solve problems such as softness and skin touch that are difficult to deal with

Active Publication Date: 2015-04-15
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult for this nonwoven fabric to cope with softness, touch, etc., because the surface properties of the nonwoven fabric change depending on the thickness of the fibers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0111] A fiber web was formed by a carding method using thermally extensible core-sheath composite fibers (fiber thickness before elongation: 4 dtex) in which the sheath is polyethylene (PE) and the core is polypropylene (PP). Heat embossing was performed on the fiber web to form a grid-shaped pressure-bonded portion 15 in which the first linear embossment 15 a and the second linear embossment 15 b intersect at an angle of 65 degrees. Each of the first and second linear embossments 15a and 15b has a line width of 0.5mm, and the intervals between the first linear embossments 15a and between the second linear embossments 15b are both 6mm. The area surrounded by the pressure bonding portion 15 is 0.735 cm 2 .

[0112] The obtained hot-embossed fiber web was subjected to a hot-air treatment by a hot-air method using a hot-air blowing device to obtain the nonwoven fabric of Example 1. For the hot air treatment, the treatment temperature (=temperature in the hot air treatment devi...

Embodiment 2

[0114] The processing temperature of hot air treatment is made 135 ℃, and processing time is made 24 seconds, and in addition, carry out hot air treatment while carrying out the suction from the opposite side (mesh surface side) of blowing hot air side, except that, and embodiment 1 Similarly, the nonwoven fabric of Example 2 was obtained.

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Abstract

Disclosed is a nonwoven fabric which comprises heat-fusible composite fibers consisting of a first resin component and a second resin component that has a higher melting point than the first resin component, wherein a contact site of the heat-fusible composite fibers is fused to form a fiber-fusion site. The aforesaid nonwoven fabric has a first surface, wherein said heat-fusible composite fibers are fixed in parallel, and a second surface and, in the first surface, the percentage of the number of sites at which fibers are fixed in parallel to the total number of the aforesaid fiber-fusion sites is 5-30%. It is preferred that said percentage in the first surface exceeds the percentage in the second surface.

Description

technical field [0001] The present invention relates to a nonwoven fabric using heat fusible conjugate fibers. Background technique [0002] Conventionally, as a nonwoven fabric in which fibers are arranged side by side, a technique has been proposed in which filaments (filaments), which are long fibers arranged in one direction, such as long fiber bundles, are used to intermittently form filaments. The joint part does not inhibit the free movement of the yarn, and the original softness of the fiber is reflected in the nonwoven fabric, which is soft and rich in cushioning (refer to Patent Document 1). In addition, a technique for obtaining a composite nonwoven fabric having a concavo-convex structure by fixing filaments such as long fiber bundles to a nonwoven fabric as a base material to improve strength has also been proposed (see Patent Document 2). . [0003] In these nonwoven fabrics, the fibers arranged in one direction are partially fixed to increase the degree of f...

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): D04H1/541D04H1/542D01F8/04A61F13/49A61F13/511
CPCD04H1/541D04H1/5412D04H1/5414
Inventor 丰岛泰生宫本孝信长原进介野田章
Owner KAO CORP