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EP0443082A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Disposable diapers

Assignee: Kao Corp
•
Filing: 1990-09-04
•
Granted: —
•
Expires: 2010-09-04
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Abstract

Abstract A disposable diaper (1) having a liquid pervious topsheet (2), a liquid impervious and vapor pervious backsheet (3) and an absorbent core (4) interposed between the topsheet and the backsheet includes liquid impervious and vapor pervious barrier sheets (11) between the topsheet and the backsheet, said barrier sheets being extended from the front edge and the rear edge of the diaper to inwards of the front edge and the rear edge of the absorbent core respectively, to thereby form waist barrier parts covering the front edge and the rear edge of the absorbent core, and said barrier sheets being so formed that the strength in the lateral direction of the diaper is higher than the strength in the longitudinal direction of the diaper.

Inventors

  • 👤 Harumitsu Toyoda
  • 👤 Masamichi Senoo
  • 👤 Keiji Abe

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-08 22:53
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/49; A61F13/494; A61F13/49466; A61F13/49007; A61F13/49009; A61F13/49011; A61F13/49012

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 124 words
A disposable diaper having a liquid pervious topsheet, a liquid impervious and vapor pervious backsheet and an absorbent core interposed between the topsheet and the backsheet, said disposable diaper comprising interposing a liquid impervious and vapor pervious barrier sheets between the topsheet and the backsheet, said barrier sheets being extended from the front edge and the rear edge of the diaper to the inwards of the front edge and the rear edge of the absorbent core respectively, to thereby form waist barrier parts covering the front edge and the rear edge of the absorbent core, and said barrier sheets being so formed that the intensity in the lateral direction of the diaper is higher than the intensity in the longitudinal direction of the diaper.
Claim 2
Dependent Claim 36 words
A disposable diaper according to Claim 1, wherein the intensity in the lateral direction of the barrier sheet of the diaper is higher than the intensity in the lateral direction of the backsheet of the diaper.
Claim 3
Dependent Claim 19 words
A disposable diaper according to Claims 1 or 2, wherein said barrier sheet is stretched in the lateral direction.
Claim 4
Dependent Claim 37 words
A disposable diaper according to Claim 1, wherein an elastically expansible member is interposed in the lateral direction between said barrier sheet and topsheet to thereby form an waist part which is capable of expansion and contraction.
Claim 5
Dependent Claim 26 words
A disposable diaper according to Claim 4, wherein said elastically expansible member is disposed apart from the front and rear edge parts of said absorbent core.
Claim 6
Dependent Claim 17 words
A disposable diaper according to Claims 4 or 5, wherein said elastically expansible member is polyurethane foam.

References Cited (Backward Citations)

EP0059015A2 Cited
EP0192965A1 Cited
EP0197736A1 Cited
EP0243013A1 Cited
EP0252413A2 Cited

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