Method of producing flow lines in a sanitary product

Details Method of producing flow lines in a sanitary product Method of producing flow lines in a sanitary product

A - Human Necessities

61

F

A61F 13/15 (2006.01) A61F 13/46 (1995.01)

Patent

CA 2219140

A method of making sanitary products giving a high wearing comfort is disclosed. The method comprises steps of forming three superposed interconnected layers (14, 15, 16). The outer layers (14, 16) are made of hydrofobic fibers and the intermediate layer (15) is made of hydrofilic fibers. The top sheet of the sanitary product is constituted by the layer (16), the back sheet is constituted by the layer (14) and the core is constituted by the layer (15). In this intermediate layer (15) flow lines (33) are made by means of a first embossing roller (31) having a pattern of raised ridges. The ridges provide a pattern (38) of groove-formed flow lines (33) allowing a body liquid to be distributed in the core (29) by flowing through the groove-formed flow lines (19).

L'invention concerne un procédé de fabrication d'articles hygiéniques, permettant d'obtenir un grand confort à l'utilisation. Le procédé comprend des étapes qui consistent à former trois couches superposées et reliées entre elles (14, 15, 16). Les couches extérieures (14, 16) sont en fibres hydrophobes, et la couche intermédiaire (15) est en fibre hydrophile. Le dessus de l'article d'hygiène est constitué par la couche (16), le dessous est constitué par la couche (14) et l'intérieur est constitué par la couche (15). Dans cette couche intermédiaire (15), on pratique des lignes d'écoulement (33) à l'aide d'un premier rouleau à repoussage (31). Ces lignes, qui se présentent sous la forme de nervures surélevées, constituent un réseau (38) de lignes d'écoulement (33) en forme de sillon, permettant ainsi aux liquides organiques de se répartir dans la partie intérieure (29) grâce au réseau de ligne d'écoulement (19) en forme de sillon.

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