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Disposable diaper

A disposable, diaper technology, applied in non-woven fabrics, clothing, textiles and papermaking, etc., can solve the problems of high energy, high production costs, and inability to perform bonding force, etc., to achieve the effect of reducing costs and improving bonding force

Active Publication Date: 2011-10-05
DAIO PAPER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, such a fleece material sheet, in which the bonding force is adjusted by locally melting the hair-like elements, is not preferable because the melted part is hardened, so when used in articles that come into contact with the skin, such as disposable diapers, there is a feeling of stiffness. of
Furthermore, since a heat source is required at the time of manufacture, much energy is required, and the production cost also becomes high.
[0014] In addition, since the pattern of the roller must be changed when the design is changed, there is a disadvantage that the design cannot be easily changed.
[0015] In addition, once the melting treatment is performed, the subsequent recovery of the bonding force cannot be performed, so it is impossible to design, for example, to suppress the bonding force only when bonding is not required.

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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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0101] figure 1 It is fastening type disposable diaper Z1 which concerns on 1st Embodiment of this invention. This disposable diaper Z has: a liquid-permeable top sheet 11 located on the user's skin side; a liquid-impermeable back sheet 12 located on the outside of the product and substantially impervious to liquid; and an absorber 13, It is arranged between the surface sheet 11 and the back sheet 12, and is, for example, rectangular or preferably hourglass-shaped and has a certain degree of rigidity. Fastening belts for fastening are provided on the left and right side edges of the back side. Y1, Y2.

[0102] The fastening tapes Y1 and Y2 are formed of the hook surface material of the surface buckle except for the parts bonded to the left and right side edges and the front end part constituting the grip part, and the joint part X1 joining the hook surface material is arranged. On the ventral side of the outer surface of the back sheet 12.

[0103] The back sheet 12 is wide...

no. 2 approach

[0137] In the first embodiment, the loop material sheet is pasted on the back sheet as the joint portion X1 of the fastening tapes Y1, Y2, but in the second embodiment, the loop material sheet is not pasted on the back sheet. On the back sheet, instead, a part of the outer surface of the back sheet 12 itself is appropriately embossed to form a matte material portion, and this is used as the joining portion X1, which is a so-called non-target tape form. Figure 4 The disposable diaper Z2 of this 2nd Embodiment is shown. Hereinafter, the second embodiment will be described focusing on points different from the first embodiment.

[0138] The backsheet 12 of the first aspect does not necessarily have to be equipped with the nonwoven fabric sheet 12B for exterior, but in the second aspect, the nonwoven fabric sheet 12B or the woven fabric is usually arranged on the outer surface side in order to improve the skin feel and form a junction. piece.

[0139] The bonding method of the ...

no. 3 approach

[0149] Figure 5 The disposable diaper Z3 of 3rd Embodiment is shown. The junction part X1 of the disposable diaper Z3 of 3rd aspect is formed by the assembly of some junction part unit x, x.... These joining part units x, x... are formed by dividing the nap material sheet of the surface button into small pieces. Furthermore, the junction is formed by five regions having different sizes of these junction units x, x..., the largest junction unit is used in the central region D1, and the peel strength is the highest. The size of the junction unit used is Since the region D2 adjacent to the region D1 becomes smaller in order, and the region D3 further adjacent to the region D2 becomes smaller, the peel strength is configured to decrease toward both side edges. In addition, the size of the junction part units x, x... may be the same in each region, and the peeling strength with the hook surface material may differ in each region by making it differ in arrangement|positioning den...

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Abstract

A fastening type disposable diaper with improved fastening ability. A disposable diaper has an engagement section constructed such that the strength against separation between the engagement section and a fastening tape is stepwise or continuously reduced from the center in the lateral direction of the product toward both left and right side edges. Alternatively, the disposable diaper has an engagement section constructed from a female member sheet formed such that female-shape elements of a female base sheet are exposed from holes (21a, 21a) of a perforated cover sheet (21).

Description

technical field [0001] The present invention relates to a disposable diaper, and in particular, relates to joining fastening tapes disposed on either the left and right side edges of the back side or the abdomen side to the left and right sides of the corresponding abdomen side or the back side. This is an unfolded disposable diaper that is worn on a joint portion arranged between side edge portions. Background technique [0002] Known are the following unfolded disposable diapers: the disposable diaper has a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber interposed between the two sheets. The fastening belts on the left and right edge portions of the side portion are fastened to fastening portions arranged at predetermined positions on the abdominal portion for wearing. [0003] Among such disposable diapers, there is a disposable diaper that uses a surface buckle mechanism as a fastening mechanism. The loop material sheet is bonded over the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F13/56A61F13/49A44B18/00D04H11/08
Inventor 宇都宫毅鸟越启滋
Owner DAIO PAPER CORP
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