BRISTLE WITH SURFACE STRUCTURE, BRISTLE MANUFACTURE METHOD, BRUSH WITH SUCH BRISTLE OR TOOTHBRUSH FOR CLEANING INTERDENTAL SPACES Russian patent published in 2000 - IPC

FIELD: manufacture of brush or like products. SUBSTANCE: method involves manufacturing surface-structured plastic brush material by extruding monofilament, during which granulate of second synthetic material is added to first thermally molten synthetic material making main component of monofilament, with first material having lower thermal stability than second material. Size of granules is calculated so that upon subsequent stretching, monofilament is subject in sections free of granulates or with low amount of granulate to stronger cross compression than in sections with increased content of granulate. Brush and bristle have surface structure of first synthetic material forming main component, into which granulate of second synthetic component is embedded. Such structure provides predetermined microrelief with improved cleaning action. EFFECT: increased efficiency and wider range of products manufactured from such bristle. 29 cl, 3 dwg