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Stereo type non-woven fabric

A non-woven fabric and shape-forming technology, which is applied in the direction of non-woven fabrics, textiles and papermaking, and conjugated synthetic polymer artificial filaments, which can solve the problems of unusability and loss of softness.

Active Publication Date: 2006-01-04
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this nonwoven fabric cannot be used in contact with the skin because it loses softness due to embossing.

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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  • Stereo type non-woven fabric
  • Stereo type non-woven fabric
  • Stereo type non-woven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5 and comparative example 1～11

[0050] Spinning was performed under the conditions shown in Table 1 to obtain concentric core-sheath adhesive composite fibers. The obtained conjugated fibers were processed into short fibers having a fiber length of 51 mm, and two-dimensional mechanical crimping was performed on the short fibers. Orientation index, thermal elongation, and melting point of the resin were measured as described. The results are shown in Table 1.

[0051] Example fiber

Comparative Example Fiber

A

B

C

D

1st resin component (weight%)

1st resin component (weight%)

PP(50)

HDPE(50)

PP(50)

HDPE(50)

PP(50)

HDPE(50)

PP(50)

HDPE(50)

Nozzle temperature (°C)

250

250

250

250

Spinning speed (m / min)

2000

1300

760

390

Fiber diameter (dtex)

3.3

3.3

3.3

3.3

to stretch

none

none

2 times

4 times

Curl p...

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Abstract

The invention provides a three-dimensional form-giving non-woven fabric (10) that is provided with a plurality of the crimping and bonding parts (25) of crimping or bonding constitute fiber. The intersection points of the fiber in the part outside the crimping and bonding part (25) are joined by a means other than crimping and bonding. The crimping and bonding part (25) becomes a concavity (12) and a convexity (11) is formed between the concavities (12), which forms the concave convex crimping and bonding part (25). At least one surface is provided with the concave convex crimping and bondingpart (25). Thermal extensibility fiber, the length of which can be extended by heating, is adopted as the constitute fiber.

Description

technical field [0001] The invention relates to a three-dimensional shaped non-woven fabric with a plurality of convex parts and a manufacturing method thereof. Background technique [0002] In the past, such a scheme has been proposed: a three-dimensionally shaped non-woven fabric whose surface is usually a flat non-woven fabric is formed into a three-dimensional shape, such as an absorbent article, to reduce the contact between the non-woven fabric and the wearer's skin, To prevent hot stuffiness or rashes, or to increase the amount of deformation in the thickness direction so that it fits the skin softly, etc. For example, it has been proposed to use a wrinkled nonwoven fabric as a surface material of an absorbent article (see JP-A-6-128853 and JP-A-9-111631). In addition, it has also been proposed that a latent shrinkable nonwoven fabric sheet and a sheet-shaped object less heat-shrinkable than the nonwoven fabric sheet are overlapped, and after the mutual surfaces are ...

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): D04H3/14D06C23/04D01F8/06D04H1/4291D04H1/541D04H1/76
Inventor 松井学金田学
Owner KAO CORP