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US 10,307,298 B2Granted
Multi-layered absorbent article
AssigneeDSG Technology Holdings Ltd.
InventorsGene Varona, Patrick King Yu Tsang, Andrew Wright
Life of this patent
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Abstract
A thin absorbent composite is provided wherein a nonwoven support sheet is hydro-entangled with a carded fiber web to provide a nonwoven substrate. The nonwoven substrate is coated with an absorbent layer comprising microfibrillated cellulose-coated superabsorbent polymer particles. A cover layer is placed above the absorbent layer to provide the absorbent composite. A process for manufacturing the absorbent composite and an absorbent article containing the absorbent composite are also provided.
Claims31
A process for making an absorbent composite, comprising:
- applying super absorbent particles (SAP) to a nonwoven substrate, wherein the SAP is dry when applied to the nonwoven substrate;
- after applying the SAP to the nonwoven substrate, applying microfibrillated cellulose (MFC) to the nonwoven substrate to form WC-coated SAP;
- and
- placing a cover layer on top of the WC-coated SAP to form the absorbent composite wherein the cover layer comprises a tissue or a nonwoven fabric.
1 more element
An absorbent article comprising:
- a multilayer absorbent core comprising:
- a first absorbent composite, the first absorbent composite including a nonwoven substrate comprising a nonwoven support sheet hydro-entangled with a carded fiber web, a cover layer, and an absorbent layer positioned between the nonwoven substrate and the cover layer, the absorbent layer comprising super absorbent polymer particles coated with microfibrillated cellulose, wherein the first absorbent composite has an WC-coated SAP side and a nonwoven substrate side;
- a second absorbent composite positioned adjacent the first absorbent composite, the second absorbent composite including a nonwoven substrate comprising a nonwoven support sheet hydro-entangled with a carded fiber web, a cover layer, and an absorbent layer positioned between the nonwoven substrate and the cover layer, the absorbent layer comprising super absorbent polymer particles coated with microfibrillated cellulose, wherein the second absorbent composite has an WC-coated SAP side and a nonwoven substrate side, wherein the nonwoven substrate side of the second absorbent composite is positioned adjacent the WC-coated SAP side of the first absorbent composite;
- and
- an acquisition distribution layer positioned adjacent the multilayer absorbent.
2 more elements
Dependencies are inferred from the claim text.