Aspects of the present disclosure include a heat brush with a handle and a base. The base includes a heating surface and a bristle that has a protrusion. The protrusion may have any of several structures. Other aspects are also described and claimed.

The present disclosure provides a method for preparing a porous antibacterial fiber brush. Fiber masterbatch made of ultra-fine reaming silica gel, silver-based antibacterial agent and other materials is melted, drawn, cut, polished and then dried to make the porous antibacterial fiber brush. A large number of micropores are distributed on the surface of the porous antibacterial fiber brush, which absorb cosmetic residues on the skin surface and tiny dirt in the pores, and realize efficient cleaning of the surface of human skin.

Proposed is a toothbrush having pairs of bristles configured in a bundle, each of the pair of bristles being composed of a first bristle having a fine end portion and a second bristle having a flat end portion, thereby more efficiently removing food remnants that are stuck between teeth or remain on the surfaces of teeth, and efficiently removing food remnants stuck between teeth and dental braces even when the dental braces are installed on the teeth.

An oral-care implement comprises a mounting surface having a longitudinal axis and a transverse axis perpendicular to the longitudinal axis and a plurality of filaments outwardly extending from the mounting surface in at least one direction not parallel to either one of the longitudinal axis and the transverse axis, each filament having a free end terminating with a tip. At least some of the filaments possess at least one functional characteristic selected from the group consisting of filament's structure, composition, cross-sectional shape, tip geometry, and any combination thereof. A plurality of filament tips comprises a working surface that includes at least a first color and a second color different from the first color. The at least first color forms at least one scaled-up image graphically replicating the at least one functional characteristic, thereby visually communicating to a consumer that the oral-care implement includes filaments having certain functional characteristic(s)and that the oral-care implement possesses superior efficacy attributable to said filaments.

An oral care implement that includes a handle and a head. The head may include a support structure and a monolithic cleaning unit coupled thereto. The monolithic cleaning unit may include a base portion coupled to the support structure and a plurality of bristles extending therefrom. At least one, or each, of the plurality of bristles may comprise a body having an outer surface and a rib extending from the outer surface. The rib may be longitudinally elongated in some embodiments and it may be helical in other embodiments. Furthermore, there may be more than one rib extending from the outer surface of the body. The monolithic cleaning unit may be formed of an elastomeric material.

Polishing media in the form of bristles made from a porous polymer-based material, apparatus and systems including the media, and methods of forming and using the media, apparatus, and systems are disclosed. A method of manufacturing bristles for use in polishing a workpiece which includes a non-planar surface includes the steps of combining a liquid polymer material and a foaming agent to form a foamed polymeric material, and separating the foamed polymeric material into a plurality of bristles. The foaming agent is configured to impart a porosity to the polymeric material, where the porosity is characterized by a density in the range of 0.3 to 1.2 g/cm.sup.3.

A lice brush includes a body that supports a plurality of bristles. The body also includes a handle. One or more of the plurality of bristles is configured for use in brushing a user's hair for lice. In particular, one or more of the bristles includes recesses, grooves, indentations, notches, pits or similar inwardly-extending spaces configured to facilitate removal of lice as the bristles pass through the hair. Multiple bristles can be provided in a bristle unit and multiple bristle units can be employed in a bristle assembly of the brush.

The cosmetic product applicator has an arithmetic mean height S.sub.a of a surface of the applicator in at least one portion A of the applicator that is strictly greater than 10.0 m, this height being calculated in accordance with the following formula:

[00001]$S_a=\frac{1}{A}.Math.{}_A.Math..Math.z\left(x,.Math.y\right).Math..Math.\mathrm{dxdy},$ in which: A is the portion of the applicator in question, and x, y and z represent the coordinates of the surface of the applicator in an orthogonal system of Cartesian coordinates, with z corresponding to a measurement axis of the height.

A monofilament bristle (200) is disclosed that comprises coextruded core (210) and sheath components (220). The sheath component (220) has an outer surface (218) and surrounds a first portion (215) of the core component (210). A second portion (216) of the core component (210) protrudes from a top terminal end (203) of the sheath component (220) to form an exposed tip portion (203). In one embodiment, the exposed tip portion (203) of the core component (210) has an outer surface (217) that includes friction-enhancing features. In another embodiment, the exposed tip portion (203) is tapered and has an outer surface (217) with a first roughness and the outer surface (218) of the sheath component (220) has a second roughness, the second roughness being greater than the first roughness. In a further embodiment, the core component (210) has an outer surface (217) configured to have higher coefficient of friction than the outer surface (218) of the sheath component (220). In other embodiments, an oral care implement (100) including one or more of the monofilaments described herein is disclosed.

Polishing media in the form of bristles made from a porous, non-porous, or minimally porous polymer-based material, apparatus and systems including the media, and methods of forming and using the media, apparatus, and systems are disclosed. An exemplary method of manufacturing bristles for use in polishing a workpiece which includes a non-planar surface includes the steps of combining a liquid polymer comprising a TDI polyester pre-polymer having an NCO content in the range of 5% with a curative to form a polymeric material, separating the foamed polymeric material into a plurality of bristles, and stitching the bristles onto a platen.