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Shaped nonwoven fabric

A technology of shaping and specific volume, applied in non-woven fabrics, textiles and papermaking, medical science, etc., can solve the problems of reduced shaping retention, damaged shaping parts, low shaping retention, etc., and achieves liquid reflux. The effect of reducing, fast absorption, and short liquid passage time

Pending Publication Date: 2019-07-26
JNC CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the shaped portion is formed by being compressed by the protruding roller, so there is a problem that it is difficult for liquid to pass through.
In addition, there is a problem that the shape retention is low due to the stretching (tension) of the nonwoven fabric, and when the disposable diaper is processed or processed into a sanitary napkin, the shape retention is reduced due to breakage of the shaped part, etc.

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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  • Shaped nonwoven fabric
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  • Shaped nonwoven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] Sample 1 is a shaped nonwoven fabric with openings ( figure 1 ). It can be seen that the specific volume is high and fluffy. In addition, 10 sensory inspectors also obtained high evaluations in the hand feeling evaluation, that is, 8 sensory inspectors evaluated that there was softness, and 5 sensory inspectors evaluated that the cushioning property was high.

[0095] With regard to the absorption performance, the liquid permeability is high due to the punching effect, and the effects of the initial liquid permeability and the repeated liquid permeability are high. In addition, in the liquid return, since the shaping convex part is fluffy, the amount of liquid return is small. The specific volume ratio is 5.9 / 29.2×100=20%.

Embodiment 2

[0097] Sample 2 is a shaped nonwoven fabric with openings ( figure 2 ). It can be seen that the specific volume is high and fluffy. In addition, 10 sensory inspectors also obtained high evaluations in the hand feeling evaluation, that is, 8 sensory inspectors evaluated that there was softness, and 8 sensory inspectors evaluated that the cushioning property was high.

[0098] In terms of absorption performance, also in terms of absorption performance, liquid permeability is high due to the punching effect, and the effects of initial liquid permeability and repeated liquid permeability are high. In addition, in the liquid return, since the shaping convex part is fluffy, the amount of liquid return is small. The specific volume ratio is 4.9 / 30.6×100=16%.

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 purpose of the present invention is to provide a porous shaped nonwoven fabric, which has excellent texture and good liquid permeability, is bulky, and is less susceptible to liquid return. The present invention provides a shaped nonwoven fabric with sections of relatively low specific volume and sections of relatively high specific volume present in parallel lines on the surface of the nonwoven fabric, wherein the low specific volume sections have thermally compressed areas alternating with porous areas and the high specific volume sections have ridges that have not been thermally compressed.

Description

technical field [0001] The invention relates to a fluffy shaped non-woven fabric with openings and products using the same. Background technique [0002] In recent years, nonwoven fabrics used in sanitary materials such as disposable diapers and sanitary napkins (napkins) have been required to be more comfortable and improved. Especially for the surface material, a special nonwoven fabric is used to reduce irritation of the skin or evaporation of urine or menstrual blood. For example, nonwoven fabrics shaped to reduce the contact area with the skin, or nonwoven fabrics with openings to increase absorption speed can be mentioned. [0003] As a conventional non-woven fabric with openings, there is known a non-woven fabric in which the non-woven fabric is sandwiched by a pin roll and a protruding roll on one side, and pierced by a heated needle on one side, thereby forming an opening (such as , refer to Patent Document 1). However, in this method, since the nonwoven fabric i...

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): D04H1/76
CPCD04H1/558D04H1/54A61F13/51104A61F13/51108D04H1/5412D04H1/76
Inventor 寺田博和
Owner JNC CORP
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