A61F2013/530481

RESPONSIVE ABSORBENT ARTICLES
20230148342 · 2023-05-11 ·

Described herein are responsive absorbent articles. The responsive absorbent articles are capable of producing unique topographies and features upon wetting that add or enhance functionality as compared to conventional absorbent articles. Compositions and methods described herein are useful in a variety of absorbent products.

PARTICULATE WATER-ABSORBING AGENT
20230144119 · 2023-05-11 ·

[Problem] To provide a particulate water-absorbing agent that can significantly reduce re-wet even when pressure is applied to the particulate water-absorbing agent from the outside when the particulate water-absorbing agent is in a swollen state.

[Solution] A particulate water-absorbing agent comprising a surface-crosslinked polyacrylic acid (salt)-based water-absorbing resin as a main component and satisfying the following expression (1).


AAP(2.06 kPa)+RCAP(2.06 kPa)≥0.58×CRC+55.6  (1),

wherein AAP (2.06 kPa) represents absorption capacity (g/g) under a pressure of 2.06 kPa, RCAP (2.06 kPa) represents retention capacity against pressure after swelling (g/g), and CRC represents absorption capacity without pressure (g/g).

Absorbent structures and cores with efficient immobilization of absorbent material

An absorbent structure comprising a planar substrate, an auxiliary glue applied on the substrate, an absorbent material comprising from 80% to 100% by weight of superabsorbent particles deposited on the substrate on an absorbent material deposition area comprising a pattern of absorbent material land areas separated by absorbent material-free junction areas, wherein the deposition area can be notionally divided in eight deposition zones of equal length along the longitudinal direction. A fibrous thermoplastic adhesive layer immobilizes at least some of the absorbent material. The absorbent material is profiled along the longitudinal direction so that at least one of the eight deposition zones is a zone of lower absorbent material amount and the auxiliary glue is absent, or present at a level of at least 50% by weight lower than the average amount of auxiliary glue in at least one of these zones of lower absorbent material amount.

ABSORBENT CORES AND METHODS FOR FORMING ABSORBENT CORES
20230190539 · 2023-06-22 ·

Pulpless absorbent cores and methods of manufacture are disclosed. A method of forming an absorbent core may comprise moving a forming surface in a machine direction, creating a pressure differential across the forming surface, advancing a base carrier sheet on the forming surface in the machine direction, applying a first adhesive onto the base carrier sheet, and applying a first quantity of particulate material onto the first adhesive at a first cross-machine direction width. The method may further comprise depositing a matrix of material onto the first quantity of particulate material at a second cross-machine direction width, the matrix of material comprising a second quantity of particulate material and a second adhesive, wherein the second cross-machine direction width is smaller than the first cross-machine direction width, and wherein the second quantity of particulate material and the adhesive are pre-mixed prior to deposition onto the first quantity of particulate material.

ABSORBENT ARTICLE

Disclosed is an absorbent article comprising a topsheet, a backsheet, an absorbent core disposed between the topsheet and the backsheet, and an outer cover layer for covering the garment-facing side of the backsheet. The absorbent article has a Thickness Under Compression of from about 2.7 mm to about 4.0 mm. The outer cover layer is formed by a muti-fiber layer nonwoven having a basis weight from about 16gsm to about 35gsm and comprising a garment facing layer and a wearer facing layer. The garment facing layer comprises fibers having a diameter of about 11 .Math.m or less, or from about 7 .Math.m to about 11 .Math.m, and the wearer facing layer comprises fibers having a diameter of about 13 .Math.m or more, or from about 13 .Math.m to about 24 .Math.m. A weight ratio of the garment facing layer is from about 20% to about 70% of the multi-fiber layer nonwoven.

Absorbent core for disposable absorbent articles with increased absorption rate and improved integrity

The present disclosure invention relates to a disposable absorbent article (100) comprising a liquid-pervious topsheet (10), a liquid-impervious backsheet (20) and an absorbent assembly (30) between the topsheet (10) and the backsheet (20). The absorbent assembly (30) comprises an absorbent core (40), an upper core wrap (50) and a lower core wrap (60). The absorbent core (40) comprises at least two cavities (70) free of absorbent material wherein the upper core wrap (50) and the lower core wrap (60) are permanently attached to each other, said cavities (70) being interconnected via at least one connecting line (80) comprising absorbent material. The absorbent core (40) has a first basis weight in the zone out of the cavities (70) and the connecting lines (80) and a second basis weight in the connecting lines (80), the first basis weight being greater than the second basis weight. in the cavities (70). The resulting absorbent assembly (30) may show all together a very good integrity, a very good distribution of fluids and a quick rate of absorption.

ADULT DISPOSABLE ABSORBENT ARTICLES AND ARRAYS OF ABSORBENT ARTICLES COMPRISING IMPROVED DESIGNS

An array of packages comprising two or more different sizes of absorbent articles, the array comprising first, second, and third packages comprising first, second, and third absorbent articles having at least first and second sizes. The first, second, and third articles may have an insert length to rise ratio greater than 60%. And, the first, second, and third packages may comprise the same brand name and sub-brand name. And, the first, second, and third absorbent articles may have identical or substantially identical chassis.

FIBROUS LAYER HAVING HYDROPHILIC PROPERTIES AND A FABRIC COMPRISING SUCH LAYER
20230181377 · 2023-06-15 ·

A fibrous layer, wherein surface of the fibres has surface energy below 50 mN/m, characterised in that the calculated strike through time coefficient (cSTT) of the fibrous layer is below 20 and the fibrous layer is bonded in its entire volume at fibre to fibre contact bonding points, wherein the specific fibre surface is the surface area of the fibres in m.sup.2 per 1 m.sup.2 of the fibrous layer, basis weight is the weight of the layer in kg per 1 m.sup.2 of the fibrous layer, the specific void volume is the volume of empty spaces between the fibres in m.sup.3 per 1 m.sup.2 of the fibrous layer.

[00001] cSTT = ( specific fibre surface ) 2 × ( basis weight ) ( specific void volume ) × ( surface energy of fibre surface ) 3 × 600

RECYCLE FRIENDLY AND SUSTAINABLE ABSORBENT ARTICLES
20220362436 · 2022-11-17 ·

An absorbent article comprising a topsheet, a backsheet joined to the topsheet, and an absorbent core positioned intermediate the topsheet and the backsheet and comprising a core absorbent material, in which the core absorbent material comprises superabsorbent polymers with a bio-based content from about 5% to about 100% using ASTM D6866-10, method B and the absorbent article comprises a polyolefin content of at least about 90% by weight, based on a total weight of the absorbent article excluding the core absorbent material.

ABSORBENT ARTICLE

An absorbent article is provided, which effectively utilizes the entire absorber by quickly diffusing a body fluid, and reduces discomfort in a wearer by suppressing unpleasant dampness and twisting after absorption of the body fluid. An absorbent article of the present invention includes a liquid permeable top surface sheet, a liquid impermeable back surface sheet, and an absorber disposed between the top surface sheet and the back surface sheet. A top surface sheet side of the absorbent article is provided with extending a plurality of compressed lines in each of which a plurality of recess portions formed by compressing the top surface sheet and the absorber are arranged. The plurality of compressed lines form intersection regions where the compressed lines intersect with each other. The compressed recess portions are not formed in the intersection regions.