| 主权项 |
1. A method of making a touch fastener, the method comprising
filling an array of discrete cavities with moldable resin, the cavities each opening onto an outer surface of a mold and otherwise closed, each cavity having a stem portion extending from the outer mold surface to a head portion undercut on two opposite sides of the stem portion; forming a layer of moldable resin on the outer mold surface, such that the layer of resin interconnects the discrete cavities; at least partially solidifying the resin in the filled cavities to form resin projections extending from the resin layer; and with the cavities remaining closed, withdrawing the projections from their cavities, such that the projections, as withdrawn from their cavities, each comprise a stem and a distal head extending to tips overhanging the resin layer on two opposite ends of the head, wherein the head portion of each cavity is distally bounded by a surface with two opposing inner edges that, as the farthest edges from the outer mold surface, are curved inwardly at least along a central region of the head portion. |
