Diaper easy-to-wear when standing

A diaper, easy technology, applied in the field of unfolded disposable diapers, can solve the problem of not being easy to wear, etc.

CN1476817AInactive Publication Date: 2004-02-25KAO CORP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2004-02-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

A disposable diaper easy to put on a wearer in a standing position comprising a liquid permeable topsheet 2, a liquid impermeable backsheet 3, an absorbent member 4 interposed between the two sheets and having a pair of laterally extensible side parts on the below-waist portion of one longitudinal end section and a pair of standing gathers, wherein the region having the absorbent member in the crotch section contains a region having a lateral flexural stiffness of 25 gf / 50 mm or less, the standing gathers are formed by fixing an elastic member at a fixing extension ratio of 100% or higher, and the standing gathers on each side, when extended in their non-fixed state, have a tensile load of from 20 to 120 gf at an effective extension ratio (fixing extension ratio - 30%), and provides a tensile load increase rate of 1.0 gf / % or lower required to extend from a 20% extension ratio to the effective extension ratio.
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Description

technical field

[0001] The present invention relates to a disposable diaper which can be easily worn in any state of a lying state (hereinafter referred to as "lying") and a standing state (hereinafter referred to as "standing"). The present invention also relates to an unfolded disposable diaper which is good in wearability both lying down and standing up, and has good absorbency and leak-proof performance. The present invention further relates to an unfolded disposable diaper which has good wearability while standing, and has good absorbency and leak-proof performance. Background technique

[0002] Existing disposable diapers are mostly known as unfolded disposable diapers with fastening tapes, and underpants-type disposable diapers that are pre-formed into panties. It can be used from the beginning, and the manufacturing cost is relatively low, so it is widely used.

[0003] Conventional general unfolded disposable diapers are designed to be worn by a wearer (baby, etc....

Examples

Embodiment 1

[0181] manufacture figure 1 -- image 3 Disposable diapers in the form shown.

[0182] Disposable diapers produced, the width between the thighs (W4) of the minimum width part of the inseam, the width (W2) of the absorber arrangement area, the width of the width (W3) of the high rigidity area and the bending rigidity, of the low rigidity area Width (W1) and bending rigidity, elongation rate of drape of diaper distribution state, tensile load increase rate, effective elongation rate (stretch rate of drape at the time of diaper distribution--30%) The tensile load, the ratio of the saturated absorbent capacity on both sides of the longitudinal center line CL (section F / section G), are shown in Table 1, respectively. As an elastic member for draped gathers, two belt-shaped elastic members are bonded and fixed to a nonwoven fabric and arranged.

[0183] In addition, as the absorber, the method according to the above-mentioned ① is used, in which a relatively hard portion is form...

Embodiment 2

[0185] The width (W3) and bending rigidity of the high rigidity area and the width (W1) and bending rigidity of the low rigidity area figure 1 , A disposable diaper having the same structure as in Example 1 was produced except that it was replaced by those shown in Table 1.

Embodiment 3、4

[0187] A disposable diaper having the same structure as in Example 1 was produced except that an absorber with relatively low bending rigidity was used as a whole, and the absorber arrangement region shown in Table 1 was formed.

[0188] Furthermore, in the diapers of Examples 1, 2, and 3, the tensile load at a constant stretch ratio in the width direction of the waist part E of the first part B was lower than the tensile load at the same stretch ratio in the width direction of the waist part D of the first part B. The tensile load is large. In addition, the width (width in the width direction of the diaper) of the stretched parts on each side in the contracted state is about 40mm. The tensile load at the middle point of stretching when a pair of fastening belts are stretched along the width direction of the diaper In the range of 30-150gf.

[0189] benchmark

[0190] A commercially available expandable disposable diaper from Kao Corporation (trade name: Miu Ershu (No Leakage...