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Pants-type disposable diaper and manufacturing method thereof

A manufacturing method and a one-time technology, applied in medical science, absorbent pads, bandages, etc., can solve the problems of cutting, deterioration of display sheet aesthetics, opening holes, etc., and achieve the effect of suppressing cutting marks

Active Publication Date: 2020-08-11
DAIO PAPER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the outer sheet layer and the inner sheet layer, a nonwoven fabric made of a thermoplastic resin having a melting point lower than that of the elastic elastic member is usually used as a raw material. There is a concern that the appearance of the display sheet may be deteriorated due to melting marks or opening holes, and these cutting marks overlap with the display sheet.
In particular, if the display sheet is a thermoplastic sheet such as a general non-woven fabric or a resin film, then of course there is also a concern that the display sheet will be partially cut off by melting, or holes will be opened.

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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  • Pants-type disposable diaper and manufacturing method thereof
  • Pants-type disposable diaper and manufacturing method thereof
  • Pants-type disposable diaper and manufacturing method thereof

Examples

Experimental program
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Embodiment Construction

[0068] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0069] Figure 1 to Figure 6 An example 100 of the underpants type disposable diaper is shown. The dotted part in the cross-sectional view indicates the adhesive used as the joining means for joining the constituent parts located on the front side and the back side, and it is full-surface coating or linear coating with hot-melt adhesive. , curtain coating, sumit coating or spiral coating, or pattern coating (transfer of hot-melt adhesive by letterpress method), etc., or elastic stretchable parts The fixing portion is formed by coating the outer peripheral surface of the elastic elastic member with a coating gun or glue coating instead of the adhesive or together with the adhesive. As the hot-melt adhesive, there are, for example, EVA-based, adhesive rubber-based (elastic), olefin-based, and polyester-polyamide-based adhesives, which can be used without parti...

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Abstract

The present invention addresses the problem of suppressing reduction in the quality of appearance of a logo sheet due to traces of cutting an elastic stretchable member. This problem is solved by the following: when forming exterior bodies (12F, 12B), elastic stretchable members (15, 16, 19) and logo sheets (25) are attached between an inner sheet layer (12H) and an outer sheet layer (12S) to form a portion to be a stretchable region (A2) and a portion to be a non-stretchable region (A1), the logo sheets (25) comprising crepe paper on which an logo is attached and which has a thickness of 50-200 μm and a density of 50-400 kg / m3; then pressurizing the elastic stretchable members (15, 16, 19) at the portion to be the non-stretchable region (A1) from inside the inner sheet layer (12H) and outside the outer sheet layer (12S), and heating the pressurized portion from only inside the inner sheet layer (12H) in order to cut the elastic stretchable members (15, 16, 19).

Description

technical field [0001] The present invention relates to an underpants-type disposable diaper provided with a display sheet on which a pattern or the like is printed, and a method for manufacturing the same. Background technique [0002] Pants-type disposable diapers generally have: an outer body, which constitutes a front body part and a back body part alone or integrally; On the surface, the side edges of the outer body of the front body part and the outer body of the rear body part are joined to form side seals, thereby forming a waist opening and a pair of left and right leg openings. [0003] In such a pants-type disposable diaper, in order to improve the fit to the body, the outer body is formed into a laminated structure having a plurality of sheets, and various elastic elastic members are installed between the sheets in an extended state. , wherein the following structure has relatively high fit to the body: in the waist region determined as the front-rear direction ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/496A61F13/15
CPCA61F13/15585A61F13/15723A61F13/49011A61F13/49017A61F13/496A61F2013/15121A61F2013/1513A61F2013/15146A61F2013/49092A61F13/15A61F13/49A61F13/514
Inventor 大野阳平
Owner DAIO PAPER CORP
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