Disposable absorbent articles having a paper reinforced tape landing

• US 5,527,305 A
• Filed: 05/05/1995
• Issued: 06/18/1996
• Est. Priority Date: 09/23/1993
• Status: Expired due to Fees

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Goulait, David J. K., Rodriguez, Sheila S., Cabell, David W.
• Primary Examiner(s): Green, Randall L.
• Assistant Examiner(s): CLARKE, ROBERT A
• Application Number:
  US08/435,554
• Time in Patent Office: 410 Days
• Field of Search: 604/358, 604/385.1, 604/382, 604/389-391
• US Class Current: 604/390
• CPC Class Codes: A61F 13/58 Adhesive tab fastener elements A61F13/5611, A61F13/5616, A61F13/66 take precedence

Abstract

A disposable absorbent article having an improved internal reinforcement strip comprising a paper (i.e., cellulosic) material. The disposable absorbent article has an adhesive tape fastening system preferably comprising tape tabs disposed adjacent each longitudinal edge and a landing member for refastenably adhering to the tape tabs. The landing member consists of a portion of the external surface of the backsheet. An internal reinforcement strip comprising a paper material is positioned so as to correspond with at least the landing zone. The reinforcement strip is joined to the internal surface of the backsheet. The use of paper for the material of the reinforcement strip provides a low cost yet effective reinforcement of the landing zone and an excellent substrate for printing of indicia that will aid in proper positioning of the absorbent article.

Claims

1. A disposable absorbent article comprising:

a body portion having a first waist region, a second waist region, longitudinal edges, and end edges, said body portion comprising a liquid pervious topsheet, a liquid impervious backsheet joined to said topsheet, and an absorbent core disposed between said topsheet and said backsheet, said backsheet having an internal surface positioned adjacent said absorbent core and an external surface opposed to said internal surface; and

an adhesive tape fastening system comprising;

a) a tape tab disposed adjacent each longitudinal edge of said body portion in said first waist region, each of said tape tabs having a fixed end and a connective end having a fastening surface, said fixed end being joined to said body portion, said connective end extending laterally outward from said longitudinal edge of said body portion, and said fastening surface being coated with an adhesive; and

b) a landing member for refastenably adhering to said adhesive to form a bond during use of the absorbent article, said landing member consisting of at least a portion of said external surface of said backsheet in said second waist region; and

c) an internal reinforcement strip coincident with at least said landing member, said internal reinforcement strip being joined to said internal surface of said backsheet and comprising a paper material having a basis weight of between about 15 lbs. per 3,000 square feet and about 30 lbs. per 3,000 square feet, a total tensile strength of between about 700 g/in and about 18,000 g/in and a cross machine direction tensile strength of between about 200 g/in and about 5,000 g/in.

2. The absorbent article of claim 1 wherein said internal reinforcement strip has an MD stretch of from about 12% to about 20%, and a CD stretch of from about 4% to about 12%.

3. The absorbent article of claim 2 wherein said external surface of said backsheet has a surface roughness having a Mean Leveling Depth of between about 3 microns and about 8 microns.

4. The absorbent article of claim 3 wherein said backsheet has an average nominal caliper of between about 0.020 mm and about 0.036 mm.