Absorbent structure for use in an absorbent article
First Claim
1. Absorbent structure for use in an absorbent article, the absorbent structure comprising:
- two different material types which are in direct or indirect contact with each other so that liquid may be transferred between the material types, wherein a first material type of said two different material types is constituted by material which swells when absorbing body fluid and a second material type of said two different material types is constituted by material which collapses when absorbing body fluid, and wherein a volume increase in the first material type is essentially equal to a volume reduction in the second material type when the absorbent structure is saturated with liquid, whereby the absorbent structure has a volume that is substantially the same both in a wet and in a dry state.
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Accused Products
Abstract
An absorbent structure for use in an absorbent article such as a diaper, an incontinence guard, a sanitary napkin, or the like wherein the absorbent structure has two different material types, which are in direct or indirect contact with each other so that liquid can be transferred between the material types. The first material type is constituted by material which swells when absorbing body fluid and the second material type is constituted by material which collapses when absorbing body fluid, wherein the volume increase in the first material type is essentially equal to the volume reduction in the second material type when the absorbent structure is saturated with liquid, whereby the absorbent structure has substantially the same volume both in a wet and in a dry state.
70 Citations
12 Claims
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1. Absorbent structure for use in an absorbent article, the absorbent structure comprising:
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two different material types which are in direct or indirect contact with each other so that liquid may be transferred between the material types, wherein a first material type of said two different material types is constituted by material which swells when absorbing body fluid and a second material type of said two different material types is constituted by material which collapses when absorbing body fluid, and wherein a volume increase in the first material type is essentially equal to a volume reduction in the second material type when the absorbent structure is saturated with liquid, whereby the absorbent structure has a volume that is substantially the same both in a wet and in a dry state. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An absorbent article intended for female users, with such a shape and size that the absorbent article may be substantially accommodated in a crotch region of a pair of panties and having a longitudinal direction, a transverse direction and a thickness direction, the article comprising:
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a liquid-pervious cover layer, a liquid-impervious cover layer, and an absorbent body arranged between the two cover layers wherein a hump is arranged at the liquid-pervious cover layer of the article, the hump comprising absorbent material of a first material type and absorbent material of a second material type, wherein the first material type is constituted by material which swells when absorbing body fluid and the second material type is constituted by material which collapses when absorbing body fluid, and wherein a volume increase in the first material type is essentially equal to volume reduction in the second material type when the hump is saturated with liquid, whereby the hump has a volume that is substantially the same both in a wet and in a dry state. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification