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US4662877: Shaped disposal diaper

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Filing Information

Inventor(s) Frank C. Williams ·
Assignee(s) Johnson & Johnson ·
Attorney/Agent(s) Martha A. Michaels ·
Primary Examiner John D. Yasko ·
Application Number US6760695
Filing date 07/30/1985
Issue date 05/05/1987
Predicted expiration date 07/30/2005
U.S. Classifications 604/385.A  ·
International Classifications A61F 1316  ·
Kind CodeA
International Classifications 604385.1;385.2;378;358 ·
Foreign Priority AU6359 - 08/02/1984 ·
14 Claims, No Drawings


Abstract

A disposable diaper has a moisture impermeable backing sheet, a fibrous absorbent batt and a flexible hydrophobic facing sheet overlying the batt, the components being secured together to form a sandwich structure; the facing sheet has an aperture in the central crotch region of the diaper with zones of elastication in the facing sheet tending to apply tensioning forces to the facing sheet for urging the facing sheet (at least in the regions adjacent the aperture) away from the underlying batt structure. With advantage the facing sheet is a breathable web of bonded fibres highly resistant to permeation of moisture. It is preferred that the absorbent batt structure comprises a wood-pulp batt and a non-woven sheet of moisture permeable material overlying the absorbent batt.

Independent Claims | See all claims (14)

  1. 1. A disposable diaper comprising a moisture impermeable backing sheet, a fibrous absorbent batt structure a flexible hydrophobic facing sheet (as herein defined) overlying the absorbent batt, the components being secured together to form a sandwich structure, and an aperture being provided in said facing sheet in the central crotch region of the diaper with zones of elastication being provided in the facing sheet tending to apply tensioning forces to the facing sheet and urging the facing sheet at least in the regions adjacent said aperture away from the underlying batt structure.
  2. 12. A disposable diaper comprising a moisture impermeable backing sheet, a fibrous absorbant batt structure, a flexible facing sheet overlying the absorbant batt, the components being secured together to form a sandwich structure, and an aperture being provided in said facing sheet in the central crotch region of the diaper with zones of elastication being provided in the facing sheet tending to apply tensioning forces to the facing sheet and urging the facing sheet at least in the regions adjacent said aperture away from the underlying batt structure; and wherein said facing sheet is a breathable web of fibres bonded together by a hydrophobic resin and highly resistant to permeation of moisture; said breathable web having a basket sink test time greater than 12 hours.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US4285342 Johnson & Johnson Baby Products Company Mesek Aug 1981
US4324245 Johnson & Johnson Mesek et al. Apr 1982
US4430086 Johnson & Johnson Baby Products Company Repke Feb 1984

Referenced By

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