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US 5,599,336 AGranted
Absorbent hydrogel fines in absorbent structures
AssigneeThe Procter & Gamble Company
InventorManfred Plischke
Life of this patent
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Abstract
The present invention relates to absorbent structures for disposable absorbent articles containing absorbent hydrogel particles. Particularly, the invention relates to absorbent structures having the absorbent hydrogel particles distributed such that essentially only particles of less than 105 micrometers are distributed in a dusting layer which, in a disposable absorbent article is adjacent the backsheet side of the absorbent article, and particles of 105 micrometers or larger are distributed in a primary layer.
Claims12
An absorbent structure comprising:
- an absorbent dusting layer, said absorbent dusting layer comprising a fibrous matrix in which absorbent hydrogel particles are distributed, wherein at least about 60% of said absorbent hydrogel particles in said dusting layer have a particular size less than 105 micrometers;
- and
- an absorbent primary layer disposed on said dusting layer, said absorbent primary layer comprising a fibrous matrix in which absorbent hydrogel particles are distributed, wherein at least about 70% by weight of said absorbent hydrogel particles in said primary layer have a particle size of 105 micrometers or larger.
A disposable absorbent article comprising:
- a liquid permeable topsheet;
- a liquid impermeable backsheet;
- an absorbent structure disposed between said topsheet and said backsheet, said absorbent structure comprising
- an absorbent dusting layer comprising a fibrous matrix in which absorbent hydrogel particles are distributed, wherein at least about 60% of said absorbent hydrogel particles in said dusting layer have a particle size less than 105 micrometers;
- and
- an absorbent primary layer disposed on said dusting layer, said absorbent primary layer comprising a fibrous matrix in which absorbent hydrogel particles are distributed, wherein at least about 70% by weight of said absorbent hydrogel particles in said primary layer have a particle size of 105 micrometers or larger.
3 more elements
Dependencies are inferred from the claim text.