A61F2013/530489

Method of forming an absorbent structure

A liquid absorbent structure is made by dry laying a fibrous web having incorporated therein a superabsorbent material, and applying an aqueous composite stabilizer to at least one surface of the web. The aqueous composite stabilizer imparts integrity to the resulting structure without substantially impairing the effectiveness of the superabsorbent material to absorb liquid while forming the absorbent structure without removing the water from aqueous composite stabilizer or drying out the absorbent structure. The absorbent composite absorbs the water from the aqueous composite stabilizer. The absorbent composite comprises about 70% by weight of a superabsorbent material.

MULTI-LAYER UNITARY ABSORBENT STRUCTURES
20200016012 · 2020-01-16 ·

The presently disclosed subject matter relates to multi-layer unitary absorbent structures and their use in absorbent articles. More particularly, the presently disclosed subject matter relates to unitary layered structures having a particular fibrous content that have improved fluid acquisition and retention characteristics.

ABSORBENT ARTICLE WITH HIGH ABSORBENT MATERIAL CONTENT

An absorbent article includes a longitudinal axis extending in a longitudinal direction of the article, a liquid permeable topsheet, a liquid impermeable backsheet, and an absorbent core disposed between the topsheet and backsheet. The absorbent core includes a superabsorbent polymer. The article further includes an acquisition-distribution layer; and at least one channel positioned within a layer located between the topsheet and the backsheet, the at least one channel being substantially free of fibers and superabsorbent polymer. An indentation occurs in at least one of the topsheet and the backsheet that correspond to the at least one channels when the article is loaded with fluid.

Feminine care absorbent article containing nanoporous superabsorbent particles

A feminine care absorbent article comprising an absorbent member positioned between a topsheet and a baffle is provided. The absorbent member contains at least one layer that comprises superabsorbent particles containing nanopores having an average cross-sectional dimension of from about 10 to about 500 nanometers.

Absorbent article having a reduced humidity level

An absorbent article comprising an absorbent member positioned between a topsheet and a backsheet is provided. The absorbent member contains at least one layer that comprises porous superabsorbent particles, wherein the particles exhibit a relative humidity microclimate of about 67% or less after being exposed to an atmosphere having a temperature of about 23? C. and relative humidity of 80% for a time period of 20 minutes.

Disposable absorbent hygiene product with topsheet and acquisition layer

A disposable absorbent hygiene product is provided, including a main part having a body facing surface intended to face the body of a user and a garment facing surface intended to face away from the body of a user. The main part includes a liquid permeable topsheet at the body facing surface, a liquid impermeable backsheet at the garment facing surface, and an absorbent assembly arranged between the topsheet and the backsheet. The liquid permeable topsheet material includes a hydrophilically treated polypropylene spunbond nonwoven or spunbond/meltblown composite nonwoven, having a basis weight of from 8 to 20 g/m.sup.2. An acquisition layer material is provided sandwiched between said topsheet and said absorbent assembly, being an through air bonded nonwoven.

ABSORBENT ARTICLES AND METHODS OF MAKING

An absorbent article comprising an absorbent core sandwiched between a liquid permeable topsheet and a liquid impermeable backsheet, and an acquisition distribution system positioned between said topsheet and said absorbent core, wherein the absorbent core comprises absorbent material selected from the group consisting of cellulose fibers, superabsorbent polymers and combinations thereof, wherein said absorbent material is contained within at least one core wrap substrate enclosing said absorbent material, and wherein a top layer of said core wrap is adhered to a bottom layer of said core wrap to form one or more channels substantially free of said absorbent material, wherein said channels have a length extending along a longitudinal axis and the absorbent core has a length extending along said longitudinal axis and wherein the length of said channels is from 10% to 95% of the length of said absorbent core and wherein said channels each follow a substantially continuous path such as from a first end of a channel to a second end of the same channel wherein the acquisition distribution system is multi-layered and comprises at least one spunbond layer and at least one meltblown layer, and wherein said acquisition distribution system is positioned between said absorbent core and said topsheet such that said spunbond and/or meltblown layers are in direct contact with said absorbent core and said topsheet.

DISPOSABLE ABSORBENT ARTICLE AND METHOD OF PRODUCING THE SAME
20190358094 · 2019-11-28 ·

The present invention relates generally to a system of producing a disposable absorbent article comprising a top sheet, a back sheet, an absorbent core positioned between said top sheet and said back sheet wherein said absorbent core having a core wrap that fully envelopes said absorbent core; said absorbent core comprises a mixture of fluff pulp and superabsorbent polymer (SAP) wherein said absorbent core having composition of SAP higher than composition of fluff pulp, and said SAP is having an Absorbency Under Load (AUL) above 17 g/g at 0.7 psi.

Absorbent article with cushion layer defining air pockets

Disposable absorbent articles and methods of making disposable absorbent articles that comprise: an absorbent structure; and a layer of cushion material configured to minimize user perception of hardness or hard spots in the absorbent structure.

METHOD OF MANUFACTURING ANTIBACTERIAL SUPERABSORBENT POLYMER ABSORBER CONTAINING METAL NANOPARTICLES
20190345600 · 2019-11-14 ·

The present invention relates to a method of manufacturing a superabsorbent polymer absorber containing metal nanoparticles and an application of the superabsorbent polymer absorber which is manufactured by the same and has antibacterial, sterilization, far infrared ray emission, prevention of blood oxidation, and mineral releasing functions. Specifically, the present invention relates to a technique in which metal nanoparticles such as copper, brass, bronze, silver, gold, germanium, and zinc are formed on the superabsorbent polymer by using a water-free manufacturing method, then, when the superabsorbent polymer absorbs water, the metal nanoparticles are naturally and uniformly dispersed, thereby allowing the superabsorbent polymer to exhibit inherent properties of the metal nanoparticles, and an application thereof.