Patent classifications
A61F2013/530321
ABSORBENT ARTICLES WITH BIOCOMPOSTABLE PROPERTIES
Disclosed is an absorbent article with biocompostable properties, such as a baby diaper, adult incontinence product, or a feminine hygiene pad. Particularly, the present invention is directed to a biocompostable absorbent sanitary article with a high degree of biocompostability. The sanitary article comprises, in one embodiment, at least a top layer, a back layer, and absorbent core, wherein the absorbent core includes a superabsorbent polymer, and wherein at least the superabsorbent polymer is biocompostable.
Absorbent articles with biocompostable properties
Disclosed is an absorbent article with biocompostable properties, such as a baby diaper, adult incontinence product, or a feminine hygiene pad. Particularly, the present invention is directed to a biocompostable absorbent sanitary article with a high degree of biocompostability. The sanitary article comprises, in one embodiment, at least a top layer, a back layer, and absorbent core, wherein the absorbent core includes a superabsorbent polymer, and wherein at least the superabsorbent polymer is biocompostable.
ABSORBENT ARTICLES WITH BIOCOMPOSTABLE PROPERTIES
Disclosed is an absorbent article with biocompostable properties, such as a baby diaper, adult incontinence product, or a feminine hygiene pad. Particularly, the present invention is directed to a biocompostable absorbent sanitary article with a high degree of biocompostability. The sanitary article comprises, in one embodiment, at least a top layer, a back layer, and absorbent core, wherein the absorbent core includes a superabsorbent polymer, and wherein at least the superabsorbent polymer is biocompostable.
ENVIRONMENTALLY-FRIENDLY ABSORBENT ARTICLE AND PROCESS OF MAKING
A method for the manufacture of an absorbent core and/or article comprising the steps of: (i) providing a first, preferably substantially continuous, nonwoven web having a first void volume; (ii) selectively applying heat to said first nonwoven web such that a deposition area of said first nonwoven web increases its void volume to a second void volume that is greater than said first void volume; (iii) depositing absorbent material comprising, preferably consisting of, superabsorbent particles onto the deposition area of said first nonwoven web; (iv) passively or actively cooling the deposition area of said first nonwoven web so that the void volume reduces to substantially the first void volume; (v) optionally combining the first nonwoven web with second and third nonwoven webs such that said first nonwoven web is interposed between said second and third nonwoven webs preferably by joining said webs by mechanical bonding selected from hot pressing and/or ultrasonic bonding; wherein the first nonwoven web consists of a high loft fibrous nonwoven layer that is free of cellulose fibers; said high loft fibrous nonwoven layer comprising, preferably consisting of, a carded air-through bonded nonwoven or drylaid thermobonded nonwoven.
ENVIRONMENTALLY-FRIENDLY ABSORBENT ARTICLE AND PROCESS OF MAKING
An absorbent core for use in an absorbent articles, wherein the absorbent core extends in a transversal direction and a longitudinal direction, and comprises: a fluid-permeable top layer; a bottom layer; one or more central layers sandwiched between the top layer and the bottom layer, each central layer having a front edge, a back edge and two longitudinally extending side edges, wherein the central layer is a high loft fibrous nonwoven layer which is free of cellulose fibers; wherein the high loft fibrous nonwoven layer comprises, preferably consisting of, a carded air-through bonded nonwoven or drylaid thermobonded nonwoven; and wherein the central layer is impregnated with superabsorbent particles such that said particles are comprised through a thickness of said central layer, said thickness extending perpendicular to both the transversal direction and a longitudinal direction, and wherein the high loft fibrous nonwoven layer is substantially free of hotmelt adhesive for immobilizing said superabsorbent particles.