Filar pole-type hook strip structure for a thin-profile hook and loop fastener

Abstract

A filar pole-type hook strip structure for a thin-profile hook and loop fastener comprised of a thick pad-like body that serves as a base material which has a plurality of fixed length strands disposed within to conjoin two fabric layers in an overlaid arrangement. The two fabric layers of the pad-like body are of knit construction and, furthermore, the fixed length strands are monofilament interlaced at a fixed interval between the two interior sides of the fabric layers such that they are weaved together in a parallel, with the arrayed short sections of the fixed length strands having a certain degree of rigidity and extension. The innovative features of the present invention include the horizontal cutting of the fixed length strands at their midpoints so that filar poles of equal length are linearly arrayed along the entire inner surfaces of the two facing fabric layers. After the strands have been cut, the upper extents of the filar poles are brought into close proximity to and subjected to a high temperature heat treatment and then a temperature reduction and shaping treatment such that broad globules are formed at the tips of the filar poles. This provides for the insertion and removal of the globules at the upper extent of the filar posts to and from the wool-like surface along the bottom side of the female loop strip to accomplish both engagement and release for fastening applications.

1 . A filar pole-type hook strip structure for a thin-profile hook and loop fastener comprised of a thick pad-like body that serves as a base material which has a plurality of fixed length strands disposed within to conjoin two fabric layers in an overlaid arrangement; the said two fabric layers of the said pad-like body are of knit construction and, furthermore, the fixed length strands are monofilament interlaced at a fixed interval between the two interior sides of the said fabric layers such that they are weaved together in a parallel, with the arrayed short sections of the said fixed length strands having a certain degree of rigidity and extension, the innovative features of which include: the said fixed length strands are cut horizontally at their midpoints, resulting in filar poles and of equal length linearly arrayed along the entire inner surfaces of the two facing said fabric layers; after the cutting of the said strands, the upper extents of the said filar poles and are brought into close proximity to and subjected to a high temperature heat treatment and then a temperature reduction and shaping treatment such that broad globules are formed at the tips of the said filar poles, thereby providing for the insertion and removal of the said globules at the upper extent of the said filar poles to and from the wool-like surface along the bottom side of a female loop strip to accomplish both engagement and release for fastening applications.