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1. (WO2018106158) ABSORBENT PRODUCT COMPRISING FOAM MATERIAL

Pub. No.:    WO/2018/106158    International Application No.:    PCT/SE2016/051217
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Tue Dec 06 00:59:59 CET 2016
IPC: A61F 13/537
A61F 13/475
A61F 13/47
A61F 13/472
B32B 3/24
B32B 5/18
Applicants: ESSITY HYGIENE AND HEALTH AKTIEBOLAG
Inventors: BLOMSTRÖM, Philip
RÖNNBERG, Peter
Title: ABSORBENT PRODUCT COMPRISING FOAM MATERIAL
Abstract:
An absorbent product comprising a liquid permeable topsheet (7), a liquid impermeable backsheet (8), and an absorbent core (11) enclosed between the topsheet (7) and the backsheet (8), said absorbent core (11) comprising an absorbent fibrous layer (9) and a liquid inlet foam layer (1), wherein the absorbent core (11) comprises a transversally central liquid inlet region (23) extending in the longitudinal direction of the absorbent core, in which the liquid inlet foam layer (1) comprises a plurality of inlet openings (3), which covers the liquid inlet region (23), said liquid inlet region (23) having a transversal width (M4), which is equal to, or up to 9 mm smaller than the minimum transversal width (M3) of the absorbent fibrous layer (9), and that side edge regions (5, 6) are arranged in front and rear portions (15, 17) of the absorbent core transversally outside of the liquid inlet region (23), said liquid inlet foam layer (1) being free from liquid inlet openings in the side edge regions (5, 6);and a method of manufacturing an absorbent product (100), comprising the steps of: cutting (130) slits (2) in a central region (4) of a continuous web of liquid inlet foam material (101) and extending (131) the web transversally in the cross machine direction, until the longitudinally central region (4) has a transversal width (M4) which is equal to or up to 9 mm smaller than the transversal minimum width (M3) of the absorbent core (122) whereby the slits (2) are dilated into openings (3); applying adhesive (132) to a continuous web of carrier material (110); combining (133) the continuous web of liquid inlet foam material (101) and cutting (134) inlet foam layer components (126) from the combined web (125); providing (135) absorbent components (122); enclosing (136) the inlet foam layer component (126) and absorbent component (122) between continuous webs of topsheet material (107) and backsheet material (108); joining (137) at least the topsheet material (107) and the backsheet material (108) along the outer edges of the absorbent product; cutting (138) the combined material into a desired shape, thus obtaining the absorbent product (100).