A - Human Necessities – 44 – B
Patent
A - Human Necessities
44
B
A44B 18/00 (2006.01) A41F 1/00 (2006.01) A43C 11/10 (2006.01)
Patent
CA 2204223
In production of a molded surface fastener with backing, molten resin is extruded to the surface of a die wheel, which has in the surface a multiplicity of engaging-element-forming cavities and, at the same time, the cavities are filled with the molten resin. During that time, the die wheel is rotated to continuously mold a multiplicity of engaging elements on the front surface of the substrate sheet. Meanwhile, the backing sheet is pressed against the rear surface of the substrate sheet on the die wheel by a pressing roller to integrally join the backing sheet and the substrate sheet together at a selected pattern of regions.
Procédé de moulage d'éléments de fixation sur une feuille contrecollée à un support, par extrusion de résine en fusion à la surface d'une matrice en forme de roue présentant une pluralité d'empreintes creuses, remplies par la résine. Au fur et à mesure que la roue tourne, elle dépose de façon continue sur la face supérieure de la feuille les éléments de fixation moulés. En même temps, le support est contrecollé à la face inférieure de la feuille en des points déterminés, par l'action d'un rouleau qui presse les deux feuilles ensemble contre la matrice.
Murasaki Ryuichi
Gowling Lafleur Henderson Llp
Ykk Corporation
LandOfFree
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