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Telescopic composite sheets and method for forming pleats thereon

A composite sheet, stretchable technology, applied in transportation and packaging, textiles and papermaking, textiles, etc., can solve the problem of low elongation of the composite sheet 40

Inactive Publication Date: 2003-04-02
UNI CHARM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the portion 40b where no gathers 44 or wrinkles 45 are substantially formed, the gathers 44 or wrinkles 45 can be stretched at a lower tension than the portion 40a, but the elongation of the composite sheet 40 in the longitudinal direction is smaller.

Method used

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  • Telescopic composite sheets and method for forming pleats thereon
  • Telescopic composite sheets and method for forming pleats thereon
  • Telescopic composite sheets and method for forming pleats thereon

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0028] Next, the stretch composite sheet and the method of forming a plurality of gathers in the stretch composite sheet according to the present invention will be described in detail with reference to the drawings.

[0029] figure 1 , 2 are the perspective view of stretchable composite sheet 1, and along figure 1 The end view of the A-A line, image 3 , 4 are respectively along figure 1 The end view of the B-B line, and along the figure 1 The end view of the C-C line. exist figure 1 , the arrow X indicates the longitudinal direction, and the arrow Y indicates the width direction.

[0030] The composite sheet 1 is formed of non-stretchable fiber nonwoven fabrics 2, 3 (sheets) that are substantially superimposed on each other, and a plurality of stretchable elastic members 4 that extend in the longitudinal direction and are arranged side by side at predetermined intervals in the width direction. . The composite sheet 1 has both side edge parts 1a extending in the lo...

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PUM

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Abstract

Provided is a stretchable composite sheet capable of stretching to an almost constant length in the longitudinal direction with an almost identical strength in the whole region in the lateral direction without forming many irregular shrinks and folds and a method for forming many folds on a stretchable composite sheet. A composite sheet 1 comprising substantially non-stretchable nonwoven fabric sheets 2, 3 and a plurality of elastic members 4 extending in a transverse direction and spaced one from another in a longitudinal direction by a given spacing wherein the elastic members 4 are secured in a stretched state to the nonwoven fabric sheets 2, 3. The composite sheet 1 has a plurality of gathers 5 formed by slightly undulated surface of the nonwoven fabric sheets 2, 3 and the elastic members 4 and these gathers 5 are substantially continuous in the longitudinal direction and arranged at substantially regular intervals in the transverse direction.

Description

technical field [0001] The present invention relates to a stretchable composite sheet suitable for wearing articles such as disposable diapers and diaper covers, and a method for forming a plurality of gathers on the stretchable composite sheet. Background technique [0002] As the stretchable sheet, in addition to the elastic stretchability of the sheet itself, it is essentially a stretchable composite sheet in which a plurality of stretchable elastic members are attached to a non-stretchable sheet in a stretched state. Below, according to Figure 10 An example of such a stretchable composite sheet will be described. In addition, in Figure 10 , the arrow X indicates the longitudinal direction, and the arrow Y indicates the width direction. [0003] The composite sheet 40 is composed of overlapping substantially non-stretch fiber nonwoven fabrics 41 and 42 , and a plurality of stretch elastic members 43 arranged side by side at a predetermined distance in the width directi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F13/49A61F5/44A61F13/15A61F13/511A61F13/514D04H13/00D06J1/12
CPCA61F13/4902A61F13/49011Y10T428/24669Y10T428/24628Y10T428/24686Y10T428/24694Y10T428/24702Y10T442/659Y10T442/602Y10T442/601A61F13/511
Inventor 请川一夫礒野正人神尾宏明大庭彻
Owner UNI CHARM CORP