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US 2010/0137773 A1Published application
Absorbent products with improved vertical wicking and rewet capability
AssigneeBuckeye Technologies Inc.
InventorsJames R. Gross, Brian E. Boehmer, John P. Erspamer, John Perry Baker
Life of this patent
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Abstract
The present invention relates to an absorbent core for use in an absorbent article and methods to make the absorbent core and absorbent articles. The absorbent core has a discrete wicking layer made with compressible fibers such as a eucalyptus or chemically treated fibers. The absorbent core and articles made with it have improved vertical wicking capacity and superior rewet characteristics.
Claims17
An absorbent core comprising:
- (1) an acquisition layer;
- (2) a storage layer having absorbent capacity, disposed beneath and in fluid communication with the acquisition layer, and
- (3) a physically independent wicking layer disposed beneath and in fluid communication with the storage layer, comprising compressible hardwood pulp and having a density of between about 0.05 and about 0.4 g/cc, where the ratio of the vertical wicking height of the wicking layer to the vertical wicking height of the storage layer is equal to or greater than 1.25.
An absorbent article comprising:
- (A) a liquid permeable top sheet,
- (B) a liquid impermeable back sheet, and
- (C) an absorbent core disposed between the topsheet and the backsheet, comprising:
- (1) an acquisition layer disposed beneath and in fluid communication with the topsheet;
- (2) a storage layer having absorbent capacity disposed beneath and in fluid communication with the acquisition layer, and
- (3) a physically independent wicking layer disposed beneath and in fluid communication with the storage layer, comprising compressible hardwood pulp and having a density of between 0.05 and 0.4 g/cc, where the ratio of the vertical wicking height of the wicking layer to the vertical wicking height of the storage layer is equal to or greater than 1.25.
3 more elements
An absorbent core comprising:
- (1) an acquisition layer;
- (2) a storage layer having absorbent capacity disposed beneath and in fluid communication with the acquisition layer;
- and
- (3) a physically independent wicking layer disposed beneath and in fluid communication with the storage layer, comprising compressible hardwood pulp.
1 more element
An absorbent core comprising:
- (1) an acquisition layer;
- (2) a storage layer having absorbent capacity disposed beneath and in fluid communication with the acquisition layer;
- and
- (3) a physically independent web imprinted wicking layer disposed beneath and in fluid communication with the storage layer, comprising compressible wood pulp in which there is a pattern of densified regions and less densified regions.
1 more element
Dependencies are inferred from the claim text.