초록 ▼

A composite touch fastener has an elongated, sheet-form resin substrate, a fibrous loop strip partially encapsulated in, or otherwise permanently attached to, resin of the substrate, and an array of loop-engageable fastener elements integrally molded with resin of the substrate. The loop strip forms

A composite touch fastener has an elongated, sheet-form resin substrate, a fibrous loop strip partially encapsulated in, or otherwise permanently attached to, resin of the substrate, and an array of loop-engageable fastener elements integrally molded with resin of the substrate. The loop strip forms a discrete band of hook-engageable, free-standing loops along the length of the substrate, and has a substantially constant fiber density across its width. The array of fastener elements is arranged in a discrete band of fastener elements extending longitudinally along the substrate. The fastener product is useful as a repeated use bag closure, with a pair of grooves and a graspable rib integrally molded into the substrate between the fastener elements and loops. The center portion of the closure seals the bag until it is torn away to expose the mating bands of loops and fastener elements. Methods and apparatus are disclosed for continuously molding the resin of the substrate while permanently attaching preformed material, such as loop material staked in discrete regions, to resin of the substrate.

대표청구항 ▼

[What is claimed is:] [1.]a sheet-form resin substrate having a front face from which an array of loop-engageable fastener elements extend in a discrete, longitudinal band, integrally molded with resin of the substrate; anda loop strip carried on the front face of the substrate and comprising a non-

[What is claimed is:] [1.]a sheet-form resin substrate having a front face from which an array of loop-engageable fastener elements extend in a discrete, longitudinal band, integrally molded with resin of the substrate; anda loop strip carried on the front face of the substrate and comprising a non-woven web of fibers forming a discrete band of hook-engageable loops extending along the length of the closure strip,the band of fastener elements extending longitudinally along the length of the closure strip and spaced apart from the band of loops, with the substrate defining a pair of grooves extending longitudinally along the length of the closure strip between the band of loops and the band of fastener elements.