Claims
- 1. Process for producing continuous synthetic bristle material for use in a toothbrush, said bristle material having a uniformly roughened exterior surface, said process comprising the steps of:
- (a) extruding a continuous filament;
- (b) stretching said continuous filament by subjecting said continuous filament to tension; and
- (c) subjecting said exterior surface of said continuous filament to a mechanical abrasion process following said stretching step, said mechanical abrasion process being accomplished by passing said continuous filament continuously through a paste comprised of abrasive particles, whereby said exterior surface of said continuous filament is uniformly mechanically roughened.
- 2. The process of claim 1, including the step of cooling said continuous filament prior to said stretching step.
- 3. The process of claim 2, wherein said cooling is accomplished by passing said continuous filament through a water bath.
- 4. The process of claim 2 or 3, wherein said stretching step is accomplished by using draw rolls to exert tension on said continuous filament.
- 5. The process of claim 4, wherein said particles are selected from the group consisting of glass beads, corundum, aluminum oxides, carbides, nitrides, kieselguhr, and sand.
- 6. The process of claim 1, including the steps of:
- (a) forming said continuous filament into a bristle bundle following said mechanical abrasion process; and
- (b) securing said bristle bundle to a substrate to provide a cleaning implement.
- 7. The process of claim 6, wherein said bristle bundle is pressed into recesses provided in said substrate and secured to said substrate by welding.
- 8. The process of claim 6, wherein said bristle bundle is pressed into said substrate and secured to said substrate by mechanical means.
- 9. The process of claim 8, wherein said mechanical means comprises a metal fastening.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3833428 |
Oct 1988 |
DEX |
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Parent Case Info
This is a division of application Ser. No. 413,889, filed on Sep. 28, 1989, abandoned.
US Referenced Citations (3)
Foreign Referenced Citations (2)
Number |
Date |
Country |
2228123 |
May 1973 |
FRX |
8600-213-A |
Oct 1986 |
NLX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
413889 |
Sep 1989 |
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