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US5807366: Absorbent article having a particle size gradient

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Filing Information

Inventor(s) John Milani ·
Assignee(s) None listed in document.
Attorney/Agent(s) Alexander; David J.Jones & Askew, L.L.P. ·
Primary Examiner John G. Weiss ·
Assistant Examiner Dennis Ruhl ·
Application Number US8878298
Filing date 06/18/1997
Issue date 09/15/1998
Predicted expiration date 12/08/2014
U.S. Classifications 604/368  · 604/385.1  ·
International Classifications A61F 1315  ·
Kind CodeA
International Classifications 604368;385.1;358 ·
Related U.S. Application DataThis is a continuation of application Ser. No. 08/351,966 filed Dec. 8, 1994, now abandoned.
15 Claims, No Drawings


Abstract

An absorbent structure containing an absorbent particle size gradient is disclosed. The absorbent structure may also include a fiber size gradient. The absorbent structure may also include absorbent particles coupled to loosely distributed fibers and more particularly, the absorbent particles may be electrostatically coupled to the loosely distributed fibers.

Independent Claims | See all claims (15)

  1. 1. An absorbent article having a length dimension, a width dimension and a height dimension, the absorbent article comprising: absorbent particles, which have been subjected to corona charging present in a generally continuous size gradient in at least one said dimension of the absorbent article.
  2. 8. An absorbent article having a length dimension, a width dimension and a height dimension comprising:multiple-sized fibers and multiple-sized absorbent particles which have been subjected to corona charging;wherein the multiple-sized absorbent particles are present in a particle size gradient in the width dimension of the absorbent article; andwherein the size gradient includes a coarse particle zone and a fine particle zone and wherein the coarse particle zone is centrally located in the absorbent article.
  3. 9. An absorbent article having a length dimension, a width dimension and a height dimension comprising:multiple-sized fibers and multiple-sized absorbent particles which have been subjected to corona charging;wherein the multiple-sized absorbent particles are present in a particle size gradient which includes a coarse particle zone and a fine particle zone;wherein the multiple-sized fibers are present in a fiber size gradient which includes a coarse fiber zone and a fine fiber zone;wherein the coarse fiber zone is combined with the coarse particle zone and wherein the fine fiber zone is combined with the fine particle zone; andwherein said coarse fiber zone and said coarse particle zone are centrally located in the absorbent article.
  4. 10. An absorbent article having a length dimension, a width dimension and a height dimension, the absorbent article comprising: absorbent particles, which have been subjected to corona charging, wherein the absorbent particles are present in a size gradient in the length dimension of the absorbent article.

References Cited

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Patent Family

Document NumberAssigneeInventorsIssue/Pub Date
AU4961696 KIMBERLY CLARK CO MILANI JOHN Jun 1996
MX9704192 KIMBERLY CLARK WORDLWIDE INC MILANI JOHN Sep 1997
US5807366 John Milani Sep 1998