| 摘要 |
A method of producing brushes by connecting plates of a plastic material, having each tufts of brush bristles attached thereto and projecting from a first face, to an attachment surface portion of a brush body made of plastic, in particular the same plastic, by means of ultrasonic welding of gluing. Each of the plates has a peripheral rim facing the brush body and having an edge formed thereon which acts as an energy concentrator in ultrasonic welding.
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