A61F2013/530802

Disposable absorption product and absorbable core
11752048 · 2023-09-12 ·

An absorbable core of a disposable absorption product, having an upper polyurethane foam layer which is liquid-permeable and a wrapping layer which is capable of absorbing liquid; the wrapping layer comprises an outer part and an inner part; the outer part is a first liquid-permeable sleeve body; the inner part is an accommodating cavity; a lower polyurethane foam layer and a particle layer are provided inside the accommodating cavity; the particle layer is distributed on an upper surface of the lower polyurethane foam layer and is formed by resin particles, organic acid particles and anhydrous bicarbonate particles mixed together. A disposable absorption product comprising said absorbable core is also provided. By integrating polyurethane polymer foam with superabsorbent polymer particles, organic acid particles and anhydrous bicarbonate particles, the absorbable core is good at absorbing and locking liquid, and provides soft and elastic supporting materials which provide great comfort to users.

Feminine hygiene pad with nonwoven topsheet having enhanced skin feel
11813149 · 2023-11-14 · ·

A feminine hygiene pad having a topsheet including a fibrous nonwoven web material having hydrophilic fibers, and an absorbent layer including an open-celled foam formed through polymerization of a high internal phase emulsion (HIPE) is disclosed. The topsheet and the absorbent layer are disposed in direct face-to-face relationship with each other, and attached to each other within a bonding region. Within the bonding region, each first identifiable point of attachment between the topsheet and the absorbent layer has a neighboring second identifiable point of attachment between the topsheet and the absorbent layer within a 6 mm radius of the first identifiable point of attachment.

Absorbent cores and methods for forming absorbent cores

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.

Male incontinence guard and method for manufacturing a male incontinence guard

A male incontinence guard has a fluid-impermeable backsheet, a fluid-permeable topsheet facing a user and an absorbent body arranged between the backsheet and the topsheet. The guard has a longitudinal extension along a longitudinal axis and a transverse extension along a transverse axis. The transverse axis divides the guard into an upper and a lower region. The upper region has a greater maximum extension along the transverse axis than the lower region. The absorbent body has primary and secondary cores arranged in a stacked configuration. The primary core has a greater area in an XY plane than the area of the secondary core. The secondary core has side edges that are at least partly generally parallel to the longitudinal axis. Also disclosed is a method for manufacturing the male incontinence guard.

Male incontinence guard and method for manufacturing a male incontinence guard

A male incontinence guard having a fluid-impermeable backsheet, a fluid-permeable topsheet facing the user and an absorbent body arranged between the backsheet and the topsheet. The guard has a longitudinal extension along a longitudinal axis and a transverse extension along a transverse axis. The transverse axis divides the guard into an upper region and a lower region. The transverse axis extends between first and second lower corner points which define the two outermost points of the guard, which define a first width. The upper region has an inwardly recessed curvature portion extending between first and second upper corner points. The upper corner points define a second width such that the first width is greater than the second width. The corner points are connected by their respective outer side edges. A method for manufacturing a male incontinence guard is disclosed.

TOPSHEETS INTEGRATED WITH HETEROGENOUS MASS LAYER

An absorbent article and method of making the absorbent article are disclosed. The absorbent article having a topsheet, a backsheet, and an absorbent core structure having one or more layers wherein at least one layer is a heterogeneous mass layer, wherein the topsheet and the heterogeneous mass are integrated such that they reside in the same X-Y plane.

ABSORBENT CORES AND METHODS FOR FORMING ABSORBENT CORES
20210085530 · 2021-03-25 ·

Pulpless absorbent cores and methods of manufacture are disclosed. A method of forming a pulpless absorbent core may comprise moving a foraminous forming surface having un-masked portions and masked portions in a machine direction, the un-masked portions defining an absorbent core region. The method may further comprise depositing particulate material at a velocity of less than 1200 meters per minute in the absorbent core region while applying a vacuum. The absorbent core region may comprise: a front core region spanning a first half of the absorbent core region and a rear core region spanning a second half, wherein the front core region trails the rear core region in the machine direction, and the masked portions of the foraminous forming surface block airflow through the forming surface to cause greater than 60% of the particulate material deposited in the absorbent core region to locate in the front core region.

Absorbent cores and methods for forming absorbent cores

Pulpless absorbent cores and methods of manufacture are disclosed. A method of forming a pulpless absorbent core may comprise moving a foraminous forming surface having un-masked portions and masked portions in a machine direction, the un-masked portions defining an absorbent core region. The method may further comprise depositing particulate material at a velocity of less than 1200 meters per minute in the absorbent core region while applying a vacuum. The absorbent core region may comprise: a front core region spanning a first half of the absorbent core region and a rear core region spanning a second half, wherein the front core region trails the rear core region in the machine direction, and the masked portions of the foraminous forming surface block airflow through the forming surface to cause greater than 60% of the particulate material deposited in the absorbent core region to locate in the front core region.

FEMININE HYGIENE PAD AND METHOD FOR ISOLATING MICROORGANISMS FROM A WEARER'S SKIN
20210038444 · 2021-02-11 ·

A method for isolating microorganisms from areas external and proximate a menstruating user's genital area is also disclosed. The method utilizes an absorbent article having a topsheet formed of nonwoven web material having favorable skin-feel qualities associated with nonwovens, and including hydrophilic fibers. A tendency of the topsheet material to absorb and retain discharged menstrual fluid, resulting from presence of hydrophilic fibers, is mitigated by inclusion of an absorbent core structure including suitable absorbent, open-celled foam material disposed directly beneath the topsheet in closely maintained, direct face-to-face contact with the outward-facing surface thereof. The absorbent foam may be suitably manufactured so as to have the ability to effectively draw fluid from the topsheet and retain it away from the topsheet. In such configuration, growth of microorganisms that might by supported by fluid retained by the topsheet, proximate the wearer's skin surfaces, is reduced or prevented.

Osmotic sanitary collection bag
11857402 · 2024-01-02 · ·

An osmotic sanitary collection bag for collecting fluid discharged from the vagina during menstruation. The osmotic sanitary collection bag includes an absorbent sponge having a plurality of drainage apertures disposed therethrough. Elongated adhesive strips extend away from the sponge and are adhered to a first surface of a conventional sanitary device to secure the osmotic sanitary collection bag in place. A collection bag abuts the absorbent sponge and is disposed in underlying relation to the absorbent sponge and the drainage apertures. The absorbent sponge is laced with salt, alcohol, and an odor-masking substance, such as sodium bicarbonate.