Molded surface fastener and method for manufacturing the same

Details Molded surface fastener and method for manufacturing the same Molded surface fastener and method for manufacturing the same

A - Human Necessities

44

B

A44B 18/00 (2006.01) B29C 45/14 (2006.01) B29C 45/16 (2006.01)

Patent

CA 2175180

In a molded surface fastener manufacturing method, molten resin is injected or extruded from an injection die or an extrusion nozzle, and at the same time, a coarse mesh core sheet is introduced between the extruded molten resin and the circumferential surface of a die wheel, which has a multiplicity of hook-element-forming circumferential cavities. The core sheet is forced against the circumferen- tial surface of the die wheel by a pressing force of a press roller or under a molten resin pressure at the time of injec- tion to pass part of the molten resin through pores of the core sheet and to fill in the hook-element-forming cavities. As a result, a multiplicity of hook elements are molded, and at the same time, the core sheet is embedded integrally in a plate-like substrate sheet eccentrically to the hook- element-surface side.

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