Process for rounding the bristle tips of toothbrushes and toothb

Details Process for rounding the bristle tips of toothbrushes and toothb Process for rounding the bristle tips of toothbrushes and toothb

1986-09-05

1988-08-09

Echols, P. W.

Brush, broom, and mop making

Processes

21912173, 264 26, A46D 104

Patent

active

047623730

ABSTRACT:
The present invention relates to a method for rounding the bristle tips of toothbrushes by the action of laser radiation, characterized in that the rounding process is effected in an electrostatic field, thus avoiding the fusion of the individual bristles as well as the formation of a mushroom-like bristle tip.

REFERENCES:
patent: 2386966 (1945-10-01), MacMillin
patent: 4147488 (1979-04-01), Chiron
patent: 4441227 (1984-04-01), d'Argembeau
patent: 4613470 (1986-09-01), Aftalion

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