Title:
METHOD FOR PRODUCING A BRISTLE, ESPECIALLY FOR A TOOTHBRUSH
Document Type and Number:
WIPO Patent Application WO1999023912
Kind Code:
A3
Abstract:
The invention relates to a method for producing a bristle, especially for a toothbrush. A filament thread is cooled following extrusion, re-heated and stretched, and optionally heated under stress. According to the invention, the filament thread is heated without any stress or with barely any stress. This allows for additional annealing which considerably improves the wear properties of the bristle in particular.
Inventors:
HANS RAINER (DE)
DRIESEN GEORGES (DE)
ZIMMET HELGE (US)
DRIESEN GEORGES (DE)
ZIMMET HELGE (US)
Application Number:
PCT/EP1998/006904
Publication Date:
July 15, 1999
Filing Date:
October 31, 1998
Export Citation:
Assignee:
BRAUN GMBH (DE)
HANS RAINER (DE)
DRIESEN GEORGES (DE)
ZIMMET HELGE (US)
HANS RAINER (DE)
DRIESEN GEORGES (DE)
ZIMMET HELGE (US)
International Classes:
A46D1/08; B29C69/02; B29C71/02; D01D5/088; D01D10/02; D01F1/06; D01F6/60; D01F6/62; D02J1/22; D02J13/00; B29C35/04; B29C48/00; B29C48/05; B29C55/00; (IPC1-7): B29C71/02; A46D1/00; D02J1/22; D02J13/00
Domestic Patent References:
| WO1998014092A1 | 1998-04-09 |
Foreign References:
| GB598820A | 1948-02-26 | |||
| EP0413833A1 | 1991-02-27 | |||
| US3522342A | 1970-07-28 | |||
| GB2083346A | 1982-03-24 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 006, no. 110 (C - 109) 22 June 1982 (1982-06-22)
Download PDF:
Previous Patent: TOOTH BRUSH TOOTH PASTE TUBE UNDER PRESSURE
Next Patent: PULL-OUT FITTING FOR DRAWERS
Next Patent: PULL-OUT FITTING FOR DRAWERS