Biodegradable separable fastener and method for production...

A - Human Necessities – 44 – B

Patent

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A44B 18/00 (2006.01)

Patent

CA 2205945

Disclosed are a biodegradable separable fastener which can be appropriately used as a fastening means for disposable products and a method for the production thereof. In a separable fastener (1) composed of a base part (2) and a multiplicity of engaging elements (3) raised from the obverse side of the base part, the base part (2) and the engaging elements (3) are formed of a biodegradable resin. In a favorable mode, at least the base part of the separable fastener has such a sectional shape as to increase the specific surface area. For example, grooves and/or holes are formed in the base part or holes are extended from the reverse side of the base part to the interiors of the engaging elements. The biodegradable separable fastener having such grooves and/or the holes may be manufactured by forming at least part of the base part with a water-soluble resin and the other part of the fastener with a biodegradable resin and, after the manufacture of the separable fastener, causing the water-soluble resin to dissolve out into a solvent.

Dispositif de fixation amovible biodégradable, pouvant servir à fixer des produits jetables, et procédé de fabrication. Dans un dispositif amovible (1), composé d'une base (2) et d'un grand nombre d'éléments enclencheurs (3) issus du côté recto de la base, la base (2) et les éléments enclencheurs (3) sont constitués d'une résine biodégradable. Dans un mode privilégié, au moins la base du fixateur amovible a une forme transversale permettant d'augmenter l'aire surfacique spécifique. Par exemple, des sillons et (ou) des trous sont formés dans la base, ou encore des trous sont prolongés à partir du côté verso de la base vers l'intérieur des éléments enclencheurs. Un dispositif de fixation amovible biodégradable possédant ces sillons et (ou) ces trous peut être fabriqué par formation d'au moins une partie de la base avec une résine hydrosoluble, et de l'autre partie avec une résine biodégradable et, après obtention du dispositif de fixation biodégradable, par dissolution de la résine hydrosoluble dans un solvant.

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