Layered composites for personal care products
AssigneeKimberly-Clark Worldwide, Inc.
InventorsLawrence Howell Sawyer, Andrew Scott Burnes, Sylvia Bandy Little, Lisa Ann Schild
Life of this patent
Estimating the term…
Abstract
There is provided a new multi-layered fibrous material for use in personal care products. In this material, a layer having a mixture of pulp, superabsorbent and binder is adjacent a layer having a very high superabsorbent concentration. The structure is then compacted to a density of between about 0.1 to 0.3 g/cc. These layered structures have better intake properties than traditionally made competitive materials. These structures surprisingly also have better distribution properties than competitive materials. Such a fibrous material is useful in personal care products, like diapers, training pants, incontinence garments and feminine hygiene products.
Claims20
A composite layered material for personal care products comprising a first layer which is a mixture of pulp, binder in an amount between 1 and 6 weight percent and superabsorbent in an amount between 1 and 30 weight percent, adjacent a second layer having a superabsorbent concentration of at least 80 weight percent, wherein said composite layered material has binder in an overall amount of at most 4 weight percent and superabsorbent in an overall amount between 35 and 80 weight percent and is compacted to a density of between about 0.1 to 0.3 g/cc.
A composite layered material for personal care products comprising from two to nine alternating A and B layers, said A layer is a mixture of pulp, binder in an amount between 1 and 6 weight percent and superabsorbent in an amount between 1 and 30 weight percent, and said B layer has a superabsorbent concentration of at least 80 weight percent, wherein said composite layered material has binder in an overall amount of at most 4 weight percent and superabsorbent in an overall amount between 35 and 80 weight percent, is compacted to a density of between about 0.1 to 0.3 g/cc and has a basis weight between 80 and 1200 gsm.
Dependencies are inferred from the claim text.