Brush manufacture

Details Brush manufacture Brush manufacture

A - Human Necessities

46

D

A46D 3/04 (2006.01) A46B 3/02 (2006.01)

Patent

CA 2255498

A method of fixing bristles into ferrules of brush heads, comprises providing a composition comprising an epoxy resin, applying the composition to end portions of the bristles, locating the end portions of a bunch of the bristles within a ferrule with the resin in contact with the ferrule, and effecting curing of the resin to adhere the bristles to the ferrule. The resin composition is such that the curing is effected in no more than 60 minutes and the resin on curing adheres within and to the ferrule and does not undergo excessive shrinkage during curing or subsequent cooling such that its adhesion to the bristles and the ferrule is not lost. Further, a method of fixing bristles into a ferrule of a brush head, comprises providing a composition comprising an epoxy resin and including a curing agent based upon a fatty acid and an aliphatic amine, the method comprising applying the composition to end portions of the bristles, locating the end portions of a bunch of the bristles in a ferrule with the resin in contact with the ferrule, and effecting curing of the resin to adhere the bristles within and to the ferrule.

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