SANITARY NAPKIN

• US 3,575,174 A
• Filed: 07/11/1969
• Issued: 04/20/1971
• Est. Priority Date: 07/11/1969
• Status: Expired due to Term

• Current Assignee: Mogor Ernest
• Original Assignee: Mogor Ernest
• Inventors: MOGOR ERNEST
• Application Number:
  US04/840,962
• Time in Patent Office: 648 Days
• US Class Current: 604/385.01
• CPC Class Codes: A61F 13/47218 with a raised crotch region, e.g. hump
• CPC Class Codes: A61F 13/47272 with a longitudinal raised end, e.g. cup-shaped gluteal groove for edge leakage prevention A61F13/494
• CPC Class Codes: A61F 13/4756 the means consisting of grooves, e.g. channels, depressions or embossments, resulting in a heterogeneous surface level
• CPC Class Codes: A61F 13/4758 the means preventing fluid flow in a longitudinal direction
• CPC Class Codes: A61F 13/51121 characterised by the material
• CPC Class Codes: A61F 13/537 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer A61F13/538 takes precedence
• CPC Class Codes: A61F 13/539 characterised by the connection of the absorbent layers with each other or with the outer layers
• CPC Class Codes: A61F 13/64 Straps, belts, ties or endless bands A61F13/5605, A61F13/5622, A61F13/66 take precedence
• CPC Class Codes: A61F 2013/15821 characterized by the apparatus for manufacturing
• CPC Class Codes: A61F 2013/51409 being a film
• CPC Class Codes: A61F 2013/530131 being made in fibre but being not pulp
• CPC Class Codes: A61F 2013/53721 with capillary means
• CPC Class Codes: A61F 2013/5694 Other non adhesive means than hook and loop-type fastener or belts A61F13/62, A61F13/64 and A61F13/66 take precedence

Abstract

A sanitary napkin which is formed in either a curved or flat configuration, tapered toward its rearward end, and is maintained in its shaped configuration by deep embossed channels impressed through the cover and into the core of the napkin to compression bond the two components together. The deep embossed channels are positioned near the lateral and end edges on the top surface of the napkin and at the rearward end on the bottom surface of the napkin.

Claims

1. A sanitary napkin comprising a core of absorbent fibrous material and a fluid pervious cover overlying at least the top surface of said core, said cover and said core being compression bonded together on the top of said core along relatively narrow embossed lines spaced inwardly from the lateral and end edges of said napkin, said embossed lines forming a dense channel extending longitudinally near each of the lateral edges of said napkin and a dense channel extending transversely near each of the end edges of said napkin, said longitudinally extending channels and transversely extending channels being connected together at their respective ends and being impressed to a depth of at least one-half the thickness of said napkin, and a deeply embossed wedge-shaped channel impressed from the bottom of said napkin at the rearward end thereof, the apex of said wedge-shaped channel being positioned medially and directed towards the forward end of said napkin and extending a distance less than half of the length of said napkin, said wedge-shaped channel forming a correspondingly shaped and positioned ridge on the top of said napkin whereby the napkin is narrowed at the rearward end thereof.

2. The sanitary napkin of claim 1 wherein said napkin is provided with attachment tabs extending beyond the ends thereof.

3. The sanitary napkin of claim 1 wherein said napkin is arcuate longitudinally with its ends being curved upwardly, the arcuate configuration of said napkin being stabilized and maintained by said longitudinally extending dense channels impressed from the top of said napkin.

4. The sanitary napkin of claim 1 wherein said napkin is tabless, the cover being folded back upon itself at the forward and rearward ends thereof and being compression bonded to said napkin within said transversely extending channels impressed from the top of said napkin.

5. The sanitary napkin of claim 1 wherein said cover includes a longitudinally extending fluid-pervious central panel overlying the top surface of said napkin in the area bonded by said longitudinally and transversely extending dense channels, said central panel being of greater free area than the rest of said cover which extends and overlaps said core on the bottom surface thereof.

6. The sanitary napkin of claim 5 wherein said central panel of said cover is a loose knit fabric and the rest of said cover is a nonwoven fabric.