Patent ID: 6060146
Filing Date: 2000-05-09
Classification: A44B,B29C,B29L,Y10T

Abstract:
A method of continuously manufacturing a molded surface fastener member having a substrate sheet and a multiplicity of engaging elements, said method comprising the steps of:(a) rotating a die wheel, which has in its circumferential surface a multiplicity of engaging-element-forming cavities, in one direction;(b) rotating an associated roller, which is disposed in confronting relation to said die wheel with a predetermined gap, in a direction opposite to said one direction;(c) continuously injecting first molten resin from a first injection nozzle to the circumferential surface of said die wheel in rotation to mold a first part of said substrate sheet and to fill said engaging-element-forming cavities with part of said first molten resin;(d) continuously injecting second molten resin in a predetermined width from a second injection nozzle to a circumferential surface of said associated roller in rotation to mold a second part of said substrate sheet;(e) continuously supplying a resin-receiving core sheet toward a meeting point of said first and second parts of said substrate sheet, which revolve as carried on the respective circumferential surfaces of said die wheel and said associated roller, to introduce said resin-receiving core sheet between said first and second substrate sheet parts;(f) pressing said first and second substrate sheet parts, with said introduced resin-receiving core sheet being centrally disposed, from opposite sides by said die wheel and said associated roller to form a unitary laminate surface fastener member;(g) cooling said laminate surface fastener member together with said engaging elements; and(h) positively drawing said cooled surface fastener member together with said engaging elements from the circumferential surface of said die wheel.