초록 ▼

A method of forming a fastener is provided, including (a) forming, from a thermoformable material, a preform product having a sheet-form base and an array of preform stems integrally molded with and extending from the base to corresponding terminal ends; (b) heating the terminal ends of the stems to

A method of forming a fastener is provided, including (a) forming, from a thermoformable material, a preform product having a sheet-form base and an array of preform stems integrally molded with and extending from the base to corresponding terminal ends; (b) heating the terminal ends of the stems to a predetermined softening temperature, while maintaining the sheet-form base and a lower portion of each stem at a temperature lower than the softening temperature; and (c) contacting the terminal ends with a contact surface that is at a predetermined forming temperature, lower than the softening temperature, to deform the terminal ends to form heads therefrom that overhang the sheet-form base. Fasteners and other methods of forming them are also provided.

대표청구항 ▼

1. An attachment strip for attaching a mesh screen to a surface, comprising: (a) a substantially planar base; (b) a plurality of elongated stems extending from said base; and (c) a plurality of heads, each head being disposed at a terminal end of one of said stems, at least a portion of said he

1. An attachment strip for attaching a mesh screen to a surface, comprising: (a) a substantially planar base; (b) a plurality of elongated stems extending from said base; and (c) a plurality of heads, each head being disposed at a terminal end of one of said stems, at least a portion of said heads having a rough surface having a sandpaper-like surface texture wherein the sandpaper-like surface has sufficient surface roughness to increase the peel strength of fastener by from about 10 to 100%, relative to the peel strength of a similar fastener element having a head to which no surface roughness has been imparted. 2. The attachment strip of claim 1 wherein the sandpaper-like surface has a surface roughness of from about 10 to 200 microns. 3. The attachment strip of claim 1 wherein said heads are substantially mushroom shaped. 4. The attachment strip of claim 1 wherein said heads are substantially disc-shaped. 5. The attachment strip of claim 1 wherein said heads are of a shape selected from the group consisting of wavy and pyramidal-shaped. 6. The attachment strip of claim 1 wherein the heads include a domed portion. 7. A fastener element comprising: an elongated stem extending from and molded integrally with a substantially planar based; and a head disposed at a terminal end of the stem, at least a portion of said head having a rough surface with a sandpaper-like surface texture; wherein said rough surface has sufficient surface roughness to increase the peel strength of the fastener by from about 10 to 100%, relative to the peel strength of a similar fastener having heads to which no surface roughness has been imparted. 8. The fastener element of claim 7 wherein the sandpaper-like surface has a surface roughness of from about 10 to 200 microns. 9. The fastener element of claim 7 wherein said head is substantially mushroom shaped. 10. The fastener element of claim 7 wherein said head is substantially disc-shaped. 11. The fastener element of claim 7 wherein said head is of a shape selected from the group consisting of wavy and pyramidal-shaped. 12. The fastener element of claim 7 wherein the head includes a domed portion.