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Patents

Process for Preparing an Absorbent Article:

U.S. Patent No. 9,649,229

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By: Karen McIntyre

Editor, Nonwovens Industry

Jean-Francois Chartrel, Cuts, France.
Assigned to BASF SE, Ludwigshafen, Germany; and Bostik Inc., Wauwatosa, WI.

Filed: 10/24/12
Issued: 5/16/17

A process for manufacturing an absorbent article (1), said article comprising: a first sheet layer (2) presenting an array of absorbent receiving pockets (4, 4a); masses (6) of superabsorbent material, which masses are placed in said absorbent receiving pockets (4, 4a); a second sheet layer (7) placed on top of the first layer; said process comprising the steps of providing a first sheet layer (2); providing an array of pockets (4, 4a) into said first sheet layer with a roll C3 comprising recesses (91a, 91b, 91c) corresponding to the array of absorbent receiving pockets (4, 4a); providing a pre-metered amount of super absorbent polymer (SAP) particulate material (6); said pre-metered amount of SAP material being delivered from a rotating delivering drum (101, 111), said drum having apertures (103a, 103b, 103c, 103d, 113a, 113b, 113c) on its periphery corresponding to the array of pockets (4, 4a), said pre-metered amount of SAP material being delivered from the inner part of said drum (101, 111) through said apertures (103a, 103b, 103c, 103d, 113a, 113b, 113c); providing a second sheet layer (7) material and affixing it for sandwiching with the first sheet layer; finishing the absorbent article, wherein the drum (111) comprises apertures (113a, 113b, 113c) on apexes (114a, 114b, 114c) of an embossed pattern.

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