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Disposable diaper and manufacturing method thereof

A disposable, diaper technology, applied in medical science, bandages, absorbent pads, etc., can solve problems such as unrecorded adhesion

Active Publication Date: 2015-09-02
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in Patent Document 5, it is not described how to set the adhesive force between each of the front end portion, the main body portion, and the fixing portion of the tape and the elastic member.

Method used

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  • Disposable diaper and manufacturing method thereof
  • Disposable diaper and manufacturing method thereof
  • Disposable diaper and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

no. 2 Embodiment approach

[0351] According to the second embodiment, in addition to the effects similar to those of the first embodiment, the following effects can be obtained.

[0352] Usually, the front end side of the side panel is inclined or twisted in the pulling direction when pulling to put on the diaper, and the load tends to act on the nonwoven fabric and the adhesive application portion. In addition, during wearing, the non-woven fabric is wrinkled due to the movement of the abdomen and the feet or a pulling force not parallel to the stretching direction acts on it, resulting in a large load. Therefore, it is particularly easy for the elastic member to come off at the elastic member fixing portion close to the tape base joining portion. On the other hand, in the second embodiment, the side panels are less likely to be affected by the burden on the nonwoven fabrics 131, 132 and the adhesive application portion due to the pulling direction during wearing or the movement after wearing. The cen...

Embodiment 1

[0582] In Example 1, the above-mentioned Figure 64 , Figure 65 Disposable diaper having the structure shown in the first embodiment of the eighth invention shown. For the absorbent main body 102 including the absorber, "Merries (registered trademark) Sarasara Air through" manufactured by Kao Corporation and cut into such Figure 64 Rectangular part shown in the extended and unfolded state.

[0583] On the two rectangular sheets 431, 432 constituting the stretchable waist sheet 403, use a grammage of 13g / m 2 SMS non-woven fabric. The length in the Y direction of the two sheets 431 and 432 is 100 mm, and the length in the X direction is 84 mm. For the plurality of linear elastic bodies 433 constituting the stretchable waist panel 403, 780 dtex spandex elastic fibers are used. The stretchable waist panel 403 is formed by arranging the linear elastic body stretched by the linear elastic body 433 at an elongation ratio of 200% between the two non-woven fabrics 431, 432 at an...

Embodiment 2

[0590] In Example 2, the production has the above Figure 67 This is a disposable diaper having the structure shown in the second embodiment of the stretchable waist panel 403 shown. In the disposable diaper of Example 2, the disposable diaper was produced in the same manner as in Example 1 except that the distance d1 and the formed angle γ were changed.

[0591] In the disposable diaper of Example 2, the distance d1 between the first fixing part 406 and the second fixing part 407 is 0 mm, and the distance d2 between the lower edge 407 a of the second fixing part 407 and the lower edge 442 a of the sheet base material 442 is 10 mm. . An angle γ formed by a straight line connecting the lowest end point α of the first fixing portion 406 and the lowest end point β of the second fixing portion 407 and an imaginary straight line parallel to the centerline CW is 90°.

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PUM

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Abstract

A disposable diaper (1) includes an oblong absorbent assembly (5) having a topsheet (2), a backsheet (3), an absorbent member (4) between the two sheets and a pair of stretch panels (6) fixed on both lateral side edges of the absorbent assembly along the longitudinal direction of the absorbent assembly. A fastening tape having an attachment portion (71) is fixed to the outer edge portion (6A) of the stretch panel (6). The stretch panel (6) has an elasticized portion (6B) inward in the direction Y from the outer edge portion (6A). There is no adhesive bonds at which any members constructing the stretch panel (6) are bonded to each other with an adhesive in a region of the stretch panel (6) outward in the direction Y from the elasticized portion (6B), the region containing the outer edge portion (6A). The inner end (73t) of a tape base portion (73) is located outward in the direction X from the elastic member (62t) that is the innermost in the direction X of the plurality of elastic members (62).

Description

technical field [0001] The present invention relates to a disposable diaper and a method of manufacturing the same. Background technique [0002] In the prior art, a so-called unfolded sheet-type disposable diaper is known, which has a substantially elongated absorbency including a front sheet, a back sheet, and an absorbent body disposed between these two sheets. the main body; and a pair of elastic sheets arranged on both sides of the absorbent main body along the longitudinal direction of the main body; The attached portion of the belt is attached to the attached area of ​​the non-skin-facing surface of the absorbent main body to wear it on the wearer. For example, Patent Document 1 describes an unfolded disposable diaper that includes a stretchable side panel containing a specific elastic body that recovers slowly. As an example of the side panel, Patent Document 1 Figure 6 It describes that a plurality of linear elastic regions including the elastic body and extending...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/49A61F13/56
CPCA61F13/62A61F13/49015A61F13/5622A61F13/15756A61F13/5633A61F13/622A61F13/49A61F13/56
Inventor 福田优子武井忍藤中知子一万田俊明
Owner KAO CORP