US 12,263,071 B2Granted

Plant-based absorbent article

AssigneeKudos Innovations, Inc.

InventorsEmily Monroe, Amrita Saigal, John Poccia, James Keighley

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Abstract

An absorbent article that is toxin-free and made from plant-based, biobased, all natural, clean ingredients. In one embodiment, the absorbent article is a diaper made from plant-based resin, comprising: (i) a first layer, wherein the first layer is a cotton top sheet with a wax-based coating deposited on an exterior surface of the first layer (adjacent to the wearer's skin, or “user-facing”); and (ii) a second layer, wherein the second layer is an acquisition/distribution layer (ADL), and wherein the ADL is comprised of two sub-layers of different materials, a first sublayer comprising an apertured film acquisition sub-layer disposed on top of, and laminated to, a second sub-layer comprising a non-woven acquisition layer.

Claims20

Dependent claims

A plant-based absorbent article comprising a plurality of layers, the plurality of layers consisting of:

(i) a first layer having a first user-facing surface and a first non-user-facing surface, wherein the first layer is a top sheet consisting of 100% cotton providing a natural hydrophobic fiber layer adjacent to a user's skin and configured to allow fluid to rapidly pass through;
(ii) a second layer having a second user-facing surface and a second non-user-facing surface, wherein the second user-facing surface is immediately adjacent to and in direct contact with the first non-user-facing surface with no intervening layers, and wherein the second layer is an acquisition/distribution layer (ADL) consisting of two sub-layers of different materials, wherein a first sub-layer is an apertured film acquisition layer and a second sub-layer is a non-woven distribution layer, wherein the first sub-layer is immediately adjacent to and in direct contact with the second sub-layer with no intervening sub-layers, and
wherein the apertured film acquisition layer includes perforations that form funnels configured to provide a circuitous path for fluid flow and oriented to prevent fluid flow back towards the first layer;
(iii) a third layer having a third user-facing surface and a third non-user-facing surface, wherein the third user-facing surface is immediately adjacent to and in direct contact with the second non-user-facing surface with no intervening layers, and wherein the third layer is an absorbent core configured to receive and trap the fluid flowing from the second layer;
and
(iv) a fourth layer having a fourth user-facing surface and a fourth non-user-facing surface, wherein the fourth user-facing surface is immediately adjacent to and in direct contact with the third non-user-facing surface with no intervening layers, wherein the fourth layer is a liquid impermeable barrier configured to contain the fluid received and trapped in the absorbent core while allowing air to transfer between the outside environment and the plurality of layers.

3 more elements

A plant-based absorbent article comprising a plurality of layers, the plurality of layers consisting of:

(1) a first layer having a first user-facing surface and a first non-user-facing surface, wherein the first layer is a top sheet consisting of 100% cotton providing a natural hydrophobic fiber layer adjacent to a user's skin and configured to allow fluid to rapidly pass through;
(ii) a second layer having a second user-facing surface and a second non-user-facing surface, wherein the second user-facing surface is immediately adjacent to and in direct contact with the first non-user-facing surface with no intervening layers, and wherein the second layer is an acquisition/distribution layer (ADL) consisting of two sub-layers of different materials, wherein a first sub-layer is a non-woven distribution layer and a second sub-layer is an apertured film acquisition sub-layer, wherein the first sub-layer is immediately adjacent to and in direct contact with the second sub-layer with no intervening sub-layers, and
wherein the apertured film acquisition sub-layer includes perforations that form funnels configured to provide a circuitous path for fluid flow and oriented to prevent fluid flow back towards the first layer;
(iii) a third layer having a third user-facing surface and a third non-user-facing surface, wherein the third user-facing surface is immediately adjacent to and in direct contact with the second non-user-facing surface with no intervening layers, and wherein the third layer is an absorbent core configured to receive and trap the fluid flowing from the second layer;
and
(iv) a fourth layer having a fourth user-facing surface and a fourth non-user-facing surface, wherein the fourth user-facing surface is immediately adjacent to and in direct contact with the third non-user-facing surface with no intervening layers, wherein the fourth layer is a liquid impermeable barrier configured to contain the fluid received and trapped in the absorbent core while allowing air to transfer between the outside environment and the plurality of layers.

3 more elements

A plant-based absorbent article comprising a plurality of layers, the plurality of layers consisting of:

(i) a first layer having a first user-facing surface and a first non-user-facing surface, wherein the first layer is a top sheet consisting of 100% cotton providing a natural hydrophobic fiber layer adjacent to a user's skin and configured to allow fluid to rapidly pass through;
(ii) a second layer having a second user-facing surface and a second non-user-facing surface, wherein the second user-facing surface is immediately adjacent to and in direct contact with the first non-user-facing surface with no intervening layers, and wherein the second layer is an acquisition/distribution layer (ADL) consisting of two sub-layers of different materials, wherein a first sub-layer is an apertured film acquisition layer and a second sub-layer is a non-woven distribution layer, wherein the first sub-layer is immediately adjacent to and in direct contact with the second sub-layer with no intervening sub-layers, and
wherein the apertured film acquisition layer includes perforations that form funnels configured to provide a circuitous path for fluid flow and oriented to prevent fluid flow back towards the first layer;
(iii) a third layer having a third user-facing surface and a third non-user-facing surface, wherein the third user-facing surface is immediately adjacent to and in direct contact with the second non-user-facing surface, and wherein the third layer is an absorbent core configured to receive and trap the fluid flowing from the second layer;
and
(iv) a fourth layer having a fourth user-facing surface and a fourth non-user-facing surface, wherein the fourth user-facing surface is immediately adjacent to and in direct contact with the third non-user-facing surface with no intervening layers, wherein the fourth layer is a liquid impermeable barrier configured to contain the fluid received and trapped in the absorbent core while allowing air to transfer between the outside environment and the plurality of layers,
wherein each layer of the plurality of layers is at least 95% plant-based and does not include any petro-chemical derived materials.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/240,736Filed 26 Apr 2021 · us provisional application
Priority: 27 Apr 2020
Published: US 2021/0330519 A128 Oct 2021
Granted: 1 Apr 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

A61F 13/51121
Topsheet, i.e. the permeable cover or layer facing the skin: characterised by the material
A61F 13/15252
Properties of the article, e.g. stiffness or absorbency: compostable or biodegradable
A61F 13/47
Characterised by the shape: sanitary towels, incontinence pads or napkins
A61F 13/49
Characterised by the shape: specially adapted to be worn around the waist, e.g. diapers or nappies