Disposable diaper with tab fasteners having a perforated cover strip

• US 3,967,624 A
• Filed: 04/04/1975
• Issued: 07/06/1976
• Est. Priority Date: 04/04/1975
• Status: Expired due to Term

• Current Assignee: Johnson & Johnson
• Original Assignee: Johnson & Johnson
• Inventors: Milnamow, John P.
• Primary Examiner(s): Medbery, Aldrich F.
• Application Number:
  US05/565,295
• Time in Patent Office: 459 Days
• Field of Search: 128/284, 128/287, 24/67
• US Class Current: 604/378
• CPC Class Codes: A61F 13/58 Adhesive tab fastener elements A61F13/5611, A61F13/5616, A61F13/66 take precedence

Abstract

A disposable diaper is provided with adhesive tab fasteners having the tacky surfaces thereof protected by perforated cover strips. The tacky areas presented through the perforations provide points of temporary attachment of the tab fastener free working ends to a diaper facing sheet so that the free working ends do not interfere with diaper manufacturing and packaging machinery.

Claims

1. A disposable diaper which comprises a moisture-impermeable backing sheet forming a diaper outside surface for direction away from an infant when the diaper is worn by that infant, a moisture-retaining layer adhered to the backing sheet and having a facing which forms a diaper inside surface for direction toward the infant, tab fastener means having a fixed end secured to said diaper backing sheet and a free working end provided with a layer of pressure-sensitive adhesive presenting a tacky surface facing in the same direction as the diaper inside surface, a means for removably holding said free working end in contact with said inside surface comprising a perforated cover strip releasably held on said tacky surface;

said free working end being folded over the edge of the diaper in abutment with said diaper inside surface and said tacky surface defining a limited adhesive contact with said facing at a plurality of attachment points through the perforations in said cover strip.

2. The disposable diaper in accordance with claim 1 wherein said pressure-sensitive adhesive protrudes into the perforations of said cover strip.

3. The disposable diaper in accordance with claim 1 wherein said layer of pressure-sensitive adhesive is thicker than said cover strip.

4. The disposable diaper in accordance with claim 1 wherein a minor portion of said cover strip is perforated.

5. The disposable diaper in accordance with claim 1 wherein the diameter of said perforations is at least about three times the thickness of said cover strip.

6. The disposable diaper in accordance with claim 1 wherein said layer of pressure-sensitive adhesive is foamed.