초록 ▼

An improvement for a process wherein a strip of fastener material is formed into the surface of urethane foam or the like during molding in a mold. The fastener material includes a backing strip having an outer surface adapted to mate with the foam material during molding and a fastener strip having

An improvement for a process wherein a strip of fastener material is formed into the surface of urethane foam or the like during molding in a mold. The fastener material includes a backing strip having an outer surface adapted to mate with the foam material during molding and a fastener strip having an outer surface comprising one-half of a fastening system such as hook and loop fastening material. The backing strip and the fastener strip are attached to one another with their respective inner surfaces in face-to-face relationship with their outer surfaces facing outward. The fastener material fits within a longitudinal groove in the mold and the backing material overlaps the groove.

대표청구항 ▼

A process wherein a strip of fastener material is formed into the surface of an article during molding of liquid foam-forming material in a mold to form the article, wherein the fastener material comprises a backing strip having an outer surface adapted to mate with the foam material during molding

A process wherein a strip of fastener material is formed into the surface of an article during molding of liquid foam-forming material in a mold to form the article, wherein the fastener material comprises a backing strip having an outer surface adapted to mate with the foam material during molding and a fastener strip having an outer surface comprising one-half of a touch fastening system, wherein the backing strip and the fastener strip are attached to one another with their respective inner surfaces in face-to-face relationship and with their outer surfaces facing outward, and wherein the fastener strip fits within a groove in the mold and the backing strip overlaps the groove, wherein in order to prevent the liquid foam-forming material from entering the groove during the molding and contaminating the outer surface of the fastener strip said process includes the steps of: (a) forming the backing strip so that it is wider than the fastener strip; (b) disposing the fastener strip on the backing strip so as to have side strips on the inner surface of the backing strip exposed on either side of outer edges of the fastener strip; (c) disposing a pair of strips of polyethylene film along respective ones of the exposed side strips with the film strips attached to the side strips along lines adjacent the outer edges of the fastener strip and extending between the outer edges of the fastener strip and outer edges of the backing strip, portions of the film strips adjacent the outer edges of the backing strip remaining unattached so as to form gasket strips of the film along the side strips on either side of the fastener strip adjacent the outer edges of the backing strip; and (d) positioning the fastener material, prior to introducing the foam-forming liquid into the mold, in the mold with the gasket strips forming a pair of gaskets between the backing strip and the mold adjacent the groove where the backing strip overlaps the mold.