Crystal E Leach

US Patent:

60606363, May 9, 2000

Filed:

Aug 1, 1997

Appl. No.:

8/905264

Inventors:

Ali Yahiaoui - Roswell GA
Jack Nelson Lindon - Alpharetta GA
Arthur Edward Garavaglia - Alpharetta GA
Crystal Sutphin Leach - Atlanta GA
Connie Lynn Hetzler - Alpharetta GA
Garry Roland Woltman - Neenah WI
David Charles Potts - Dunwoody GA

Assignee:

Kimberly-Clark Worldwide, Inc. - Neenah WI

International Classification:

A61F 1315

US Classification:

604367

Abstract:

Disclosed is an improved structure that includes a nonwoven web including a viscoelastant treatment. The treated web, when contacted by a viscoelastic fluid such as menses alters the viscoelastic properties of the fluid and enhances its wicking and distribution throughout the absorbent structure. A desirable viscoelastant is a alkyl polyglycoside, particularly those having 8 to 10 carbon atoms in the alkyl chain. When applied so as to provide an amount of about 0. 1% to about 5. 0% solids add-on based on the weight of the dry nonwoven web, rapid fluid wicking and distribution may be obtained. Other viscoelastants are disclosed. Advantageously the treatment may be applied as a high solids composition using conventional application means such as spray coaters and the like or as an internal additive. The absorbent structure finds particular utility as a distribution layer component of a sanitary napkin for absorbing menses as well as other blood handling products such as surgical drapes, for example.