Process for producing bristle materials
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United States of America Patent
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Jul 20, 1993
Issued Date -
N/A
app pub date -
Jun 7, 1991
filing date -
Oct 1, 1988
priority date (Note) -
Expired
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Abstract
The present invention relates to a process for producing bristle materials suitable for inserting into toothbrushes and based on synthetic fibres which have been roughened on their surface by mechanical action, in particular by means of a blast apparatus, the roughening being accomplished on the endless fibre strand after stretching. Using these bristle materials, toothbrushes with an improved plaque-removing action can be produced.
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