Absorbent core with nonwoven web(s) comprising superabsorbent fibers
AssigneeThe Procter & Gamble Company
InventorsBruno Johannes Ehrnsperger, Juliane Kamphus, Simone Seeboth, Saskia Kraemer
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Abstract
An absorbent core including one or more nonwoven webs with superabsorbent fibers. The superabsorbent fibers may include one or more surfactants. The one or more nonwoven webs have an amount of extractables of less than 20 weight-%, and/or an amount of titratable soluble of less than 20%. The nonwoven webs have a capacity of at least 7 g/g. The absorbent core may be used in an absorbent article.
Claims19
An absorbent core comprising one or more nonwoven webs, the one or more nonwoven webs comprising at least 80 weight-% of superabsorbent fibers based on the total weight of the nonwoven web, wherein the superabsorbent fibers comprise one or more surfactants;
- and wherein the absorbent core comprises at least 60 weight-% of the superabsorbent fibers based on the total weight of the absorbent core, wherein the one or more nonwoven webs have an amount of extractables of less than 20 weight-% based on the total weight of the one or more nonwoven webs according to the Extractables Test Method, and wherein the nonwoven webs have a capacity of at least 7 g/g as measured according to the Centrifuge Retention Capacity test set out herein.
An absorbent article comprising:
- a topsheet;
- a backsheet;
- an absorbent core positioned between the topsheet and the backsheet, wherein the absorbent core comprising:
- one or more nonwoven webs, the one or more nonwoven webs comprising at least 80weight-% of superabsorbent fibers based on the total weight of the nonwoven web, wherein the superabsorbent fibers comprise one or more surfactants;
- and wherein the absorbent core comprises at least 60 weight-% of the superabsorbent fibers based on the total weight of the absorbent core, wherein the one or more nonwoven webs have an amount of extractables of less than 20 weight-% based on the total weight of the one or more nonwoven webs according to the Extractables Test Method, and wherein the nonwoven webs have a capacity of at least 7 g/g as measured according to the Centrifuge Retention Capacity test set out herein.
A method of making an absorbent core comprising the steps of
- a) providing superabsorbent fibers;
- b) converting the superabsorbent fibers into a continuous nonwoven web;
- and
- c) (i) forming a continuous absorbent core which comprises one or more separate nonwoven webs with superabsorbent fibers and cutting the continuous absorbent core into separate absorbent cores;
- or
- (ii) cutting the continuous nonwoven web with superabsorbent fibers into separate nonwoven webs with superabsorbent fibers and forming an absorbent core which comprises one or more of the separate nonwoven webs with superabsorbent fibers;
- wherein one or more surfactants are provided on and/or inside the superabsorbent fibers, and/or on the continuous nonwoven web, and/or on the separate sheets of nonwoven web;
- and wherein the nonwoven web(s) have an amount of extractables of less than 20 weight-% based on the total weight of the one or more nonwoven webs, according to the Extractable Test Method, and/or wherein the one or more nonwoven webs have an amount of titratable soluble of less than 20% according to the Titratable Soluble Test Method;
- and
- wherein the nonwoven webs have a capacity of at least 7 g/g as measured according to the Centrifuge Retention Capacity test;
- and
- wherein the absorbent core comprises at least 60 weight-% of the superabsorbent fibers based on the total weight of the absorbent core.
Dependencies are inferred from the claim text.