METHOD FOR COLOURING TOOTHBRUSH FILAMENTS
The method involves providing a wear and tear indicating die stuff into a medium that is set under above-atmospheric pressure. Toothbrush filaments (1) and/or a wear and tear part are supplied with a consumable-medium-mixture that stays under pressure for a predetermined application time, where the...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | The method involves providing a wear and tear indicating die stuff into a medium that is set under above-atmospheric pressure. Toothbrush filaments (1) and/or a wear and tear part are supplied with a consumable-medium-mixture that stays under pressure for a predetermined application time, where the medium comprises carbon-dioxide as constituent. The wear and tear indicating dyestuff is dissolved in water before it is provided into the carbon-dioxide. Plastic filaments made of polymer e.g. polyamide, are used as the toothbrush filaments. Independent claims are also included for the following: (1) a method for manufacturing a toothbrush (2) a toothbrush head with filaments (3) a toothbrush with a head. |
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