| 摘要 |
A back-to-back hook fastener having hook-shaped fastening elements (1) extending from one side of a base member (7) and anchoring elements (3) extending from an opposite side of the base member(7), the fastening elements (1) and anchoring elements (3) being individually molded integrally with the base member (7). The back-to-back fastener is useful for integrally molding fastening elements (1) into a molded article for subsequent attachment of another part having mating loop elements. Alternatively, the back-to-back fastener is useful, when the anchoring elements (3) are hook-shaped, for joining together loop components of hook and loop fasteners. The back-to-back hook fastener is made by extruding a web of molten thermoplastic resin into the nip formed between two molding rolls (14, 15), the molding rolls (14, 15) having cavities around their peripheries in which the fastening elements (11) and anchoring elements (3) are molded. |
