A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 13/49 (2006.01)
Patent
CA 2620625
Multilayer absorbent pads for nappy/diaper pants are manufactured on a unit (1) comprising a first device (3a) and a second device (3b) by which respective first and second layers (4a, 4b) of absorbent material (5) are taken up from two infeed stations, shaped, and transferred to two release stations. The devices (3a, 3b) are synchronized in operation, and associated by way of a transfer station (8) at which the first layer (4a) of absorbent material is joined directly to the second layer (4b) , positioned selectively and with the second layer still retained by suction on the second device (3b) ; the two layers are thereupon compressed simultaneously to form an absorbent pad (2) that emerges from the unit as a stable, one-piece core.
Selon l'invention, des tampons absorbants multicouches, destinés à garnir des couches-culottes, sont fabriqués sur un appareil (1) constitué d'un premier dispositif (3a) et d'un second dispositif (3b) au moyen desquels une première et une seconde couches (4a, 4b) respectives d'un matériau absorbant (5) sont prélevées depuis deux postes d'alimentation, mises en forme, et transférées vers deux postes de dégagement. Les dispositifs (3a, 3b) sont synchronisés pendant le fonctionnement, et associés par un poste de transfert (8) au niveau duquel la première couche (4a) de matériau absorbant est assemblée directement à la seconde couche (4b) pendant que celle-ci, disposée sélectivement, est maintenue en place par aspiration sur le second dispositif (3b). Les deux couches sont ensuite comprimées simultanément pour former un tampon absorbant (2) qui sort de l'appareil sous la forme d'une couche centrale monopièce stable.
Aiolfi Luca
Nanni Stefano
Perego Alberto
Piantoni Matteo
Gdm S.p.a.
Oyen Wiggs Green & Mutala Llp
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