A detecting machine for a yield rate of bristles of a toothbrush and a detecting method for the bristles are provided. The detecting machine includes a power device and two rotating units, and the two rotating units are rotatably mounted on a side surface of the power unit. The two rotating units are disposed parallel to each other. When in a rotating condition, the two rotating units rotate in opposite rotating directions. When a manufacturer horizontally disposes a toothbrush between the two rotating units, the surfaces of the two rotating units may compress the bristles and pull the bristles toward a direction away from the toothbrush. Therefore the manufacturer can inspect whether the bristles are firmly mounted on the toothbrush.

An antibacterial cosmetic brush bristle material made of a polyester resin filament that has irregularities formed on its surface and comprises 70.0 to 90.0 percent by weight of polytrimethylene terephthalate, 29.2 to 9.9 percent by weight of polybutylene terephthalate, and 0.8 to 0.1 percent by weight of inorganic particles constituting silver-containing soluble glass; a cosmetic brush using such bristle material; and a method of manufacturing such brush.

An antibacterial cosmetic brush bristle material made of a polyester resin filament that has irregularities formed on its surface and comprises 70.0 to 90.0 percent by weight of polytrimethylene terephthalate, 29.2 to 9.9 percent by weight of polybutylene terephthalate, and 0.8 to 0.1 percent by weight of inorganic particles constituting silver-containing soluble glass; a cosmetic brush using such bristle material; and a method of manufacturing such brush.

A spiral bristle (201) includes: a first component (231), a second component (233), and a third component (235), with each of the second and third components (233, 235) wrapping around the first component (231) in a helical and spaced-apart manner, the second and third components (233, 235) isolated from one another by the first component (231). An oral care implement includes the spiral bristle.

A spiral bristle (201) includes: a first component (231), a second component (233), and a third component (235), with each of the second and third components (233, 235) wrapping around the first component (231) in a helical and spaced-apart manner, the second and third components (233, 235) isolated from one another by the first component (231). An oral care implement includes the spiral bristle.

Improvements in the technical field of brush manufacture are provided by a dividing-up device (1), which includes a dividing-up disc (5) with at least two dividing-up indents (6) formed at its circumference. In order for it to be possible to adapt an effective indent volume of the dividing-up indents (6) as desired, the dividing-up device (1) also includes an adjusting device (8), which is designed to adjust the effective indent volume of the dividing-up indents (6) that is available for dividing up clusters (2) of bristles.

Improvements in the technical field of brush manufacture are provided by a dividing-up device (1), which includes a dividing-up disc (5) with at least two dividing-up indents (6) formed at its circumference. In order for it to be possible to adapt an effective indent volume of the dividing-up indents (6) as desired, the dividing-up device (1) also includes an adjusting device (8), which is designed to adjust the effective indent volume of the dividing-up indents (6) that is available for dividing up clusters (2) of bristles.

A mascara brush includes from bristles, wherein the bristles have a solid round or oval cross section with a diameter of about 6 mil, a twisted wire core holding the bristles, the twisted wire core includes 11 to 13 bristles per turn (equivalent to 210?270 bristles per standard size of 27 mm?28 mm brush); and the brush has an average brush diameter between 7.4 mm to 8.2 mm.

A mascara brush includes from bristles, wherein the bristles have a solid round or oval cross section with a diameter of about 6 mil, a twisted wire core holding the bristles, the twisted wire core includes 11 to 13 bristles per turn (equivalent to 210?270 bristles per standard size of 27 mm?28 mm brush); and the brush has an average brush diameter between 7.4 mm to 8.2 mm.

An apparatus (10) for forming multi-filament tufts for use in a brush seal includes a support (14) for retaining an end of a skein (16) of aligned wires or fibers and a glue reservoir (15) dimensioned to receive the skein end. The support (14) and the reservoir (15) being relatively movable whereby the end can be inserted in the glue reservoir (15) so that the adhesive can adhere the wires or fibers at the end to form the tuft. A cutter (13) is also provided for cutting the wires or fibers to length after the wires and fibers are retained by the support (14).