Thin absorbent core made from folded absorbent laminate

Details Thin absorbent core made from folded absorbent laminate Thin absorbent core made from folded absorbent laminate

A - Human Necessities

61

F

A61F 13/15 (2006.01) A61F 13/20 (2006.01) A61F 13/49 (2006.01)

Patent

CA 2389246

A disposable absorbent garment (10) comprising a topsheet (30), abacksheet (32), and an absorbent core (342) disposed between the topsheet and the backsheet. The absorbent core is formed from a folded laminate comprising three layers, including an upper layer (342b), a lower layer (342c) and a central fibrous layer (342a) including from about 50 to about 95 percent by weight superabsorbent polymer and about 5 to about 50 percent by weight stabilizing additives. The upper and lower layers comprise tissue, airlaid fluff pulp or synthetic non-woven fibrous layers. The central fibrous layer is adhesively bonded to both the upper and lower layers, all layers together assisting to maintain the dry and wet integrity of the absorbent core. Folding of the thin absorbent laminate provides an absorbent core that can handle large doses of urine. The folded structure provides a central channel (360) that provides free volume (371) for temporary liquid storage, isolation and containment of bowel movements, and increases the surface area of laminate available for liquid absorption.

L'invention concerne un vêtement absorbant jetable (10) avec une feuille de dessus (30), une feuille de dessous (32) et une partie centrale absorbante (42) placée entre les feuilles de dessus et de dessous. La partie centrale absorbante est formée à partir d'un contrecollé replié composé de trois couches, à savoir une couche supérieure (342b), une couche inférieure (342c) et une couche fibreuse centrale (342a) comprenant environ 60 à 95 % en poids de polymère superabsorbant et environ 5 à 50 % en poids d'additifs de stabilisation. Les couches supérieure et inférieure comprennent du tissu, de la pâte en flocons ou des couches de fibres non tissées synthétiques. La couche fibreuse centrale est collée aux couches supérieure et inférieure, et toutes les couches assurent l'intégrité de la partie centrale tant à l'état sec que mouillé. La partie contrecollée mince et absorbante est repliée, ce qui lui permet de recevoir de grandes quantités d'urine. La structure pliée constitue un canal central (360) qui forme un volume libre (371) permettant de stocker temporairement le liquide, et d'isoler et de bien maintenir l'utilisateur. En outre, elle permet d'augmenter la surface de la partie contrecollée pouvant absorber les liquides.

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