Importance

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Abstract

A wire core brush composed of a core comprising at least two wires twisted together between which are held bristle-forming elements, which form bristles that protrude from the core, characterized in that the wire core brush has been produced in such a way that after the twisting, it has first bristles protruding from the core essentially in the radial direction with a first length and also has second bristles protruding from the core essentially in the radial direction with a second length that is greater than the first length so that the second bristles protrude beyond the first bristles essentially in the radial direction; after this, the brush has been pulled through a hot tube whose inner diameter and temperature are selected and matched to the residence time of the brush in the tube so that a section of the second bristles is permanently oriented essentially parallel to the longitudinal axis of the wire core.

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First Claim