An apparatus for manufacturing an individual brush unit constituting a rotary brush by being stacked in multiple layers, includes an anvil having an insertion hole through which a filament group passes, a filament feeding unit which feeds the filament group from a feeder including a ring cutter on a tip and holds the filament group while a predetermined amount of the filament group protrudes outward from the insertion hole of the anvil, and an ultrasonic welder including a horn having a horn tip portion which pushes and radially expands a protruding tip of the filament group and welds a central part of the expanded filament group, to form the individual brush unit. A core of the welded central part is sandwiched between the ring cutter and the horn tip portion and is cut out, to simultaneously form a shaft hole and separate the individual brush unit from the filament group.

The invention relates to method of manufacturing a recess wall lined with bristles for a mouthpiece for simultaneously brushing at a plurality of dental positions, and to a recess wall and mouthpiece manufactured according to the method. In a providing step, an elongate, continuous, bristled sheet part having a first side lined with a plurality of bristles is provided. The elongate sheet part defines a length axis extending parallel to the sheet part and, viewed transverse to the length axis, a cross-sectional shape. The sheet part obtained in the providing step has an initial condition in which the cross-sectional shape has an initial shape, and the length axis is arch-shaped. In a transforming step, the sheet part of the providing step is transformed from the initial condition to a final condition to provide the recess wall. In the final condition the cross-sectional shape has a final U-shape, the length axis is arch shaped, and the first side is a concave inner side of the final U-shape. The first side is in the final condition more concave than in the initial condition.

A cleaning apparatus or an interdental cleaning apparatus and a method for producing a cleaning apparatus or an interdental cleaning apparatus, the method includes: forming a gripping element from a fiber material or from paper or card, providing a cleaning element which comprises at least one filament, arranging at least a portion of the at least one filament of the cleaning element in a receiving portion of the gripping element, connecting the cleaning element to the gripping element by: pressing the receiving portion of the gripping element, or pressing the receiving portion from several sides against the portion, which is arranged in the receiving portion of the filament and/or introducing heat into the receiving portion and/or the portion of the filament.

A method of manufacturing a toothbrush includes steps of providing a carrier having at least a first through hole extending from a front side to a backside of the carrier and at least a first wall element integral with the carrier and extending from the back side in a vicinity of the through hole; introducing a first cleaning element into the first through hole such that an end portion of the first cleaning element is exposed on the backside of the carrier; treating the end portion of the first cleaning element such that it deforms and becomes wider than the first through hole; and deforming the first wall element until it at least partially extends over the deformed end portion of the first cleaning element such that the first cleaning element is effectively retained in its axial position. A brush having structural features resulting from the manufacturing method.

The invention relates to a brush including a brush head body which includes a recess through which a bundle of bristles passes, the securing-side end of which is provided by means of a melt process with a thickened portion for securing the bundle of bristles to the brush head body, wherein the brush head body forms a collar which extends up to the thickened portion and circumferentially surrounds the bundle of bristles and which is provided at a distance from a brush head body surface projected over by the bundle of bristles at the use side, and is bonded to the thickened portion by means of a melting process.

An oral care implement having tooth cleaning elements and an elastomeric soft tissue cleanser. In one aspect, the oral care implement has a handle and a head coupled to the handle, an elastomeric soft tissue cleanser having a plurality of protuberances extending from a rear surface of the head, and a plurality of tooth cleaning elements extending from a front surface of the head. The protuberances of the elastomeric soft tissue cleanser collectively define a convex longitudinal side profile and comprise at least one convex transverse top profile. The plurality of tooth cleaning elements collectively define a concave longitudinal side profile and comprise at least one concave transverse top profile.

A brush product, in particular a toothbrush, having a base body with a head part with a front and a rear side, which includes a bristle carrier with a longitudinal axis and a transverse axis and a bristle field protruding therefrom, wherein the bristle field is formed by at least one group of cleaning elements; a handle part; and a neck part connecting the head part and the handle part; wherein the bristle carrier is provided with bristles which are mounted without being anchored and wherein the bristle carrier includes substantially a central support area, an upper support area, a lower support area, a right support area and a left support area, in which the groups of cleaning elements are arranged. Also, a corresponding method and tool.

An automatic handle assembly system for a paint brush, including a feeding device, a conveying device, a handle pushing device, a pneumatic system, and a control system. The feeding device is used for transporting a glue-filled paint brush head to an entrance of the conveying device. The conveying device is used for realizing transportation, pressing and precise positioning of the paint brush head. The handle pushing device is used for pushing a paint brush handle to precisely insert into the paint brush head. The feeding device, the conveying device, and the handle pushing device are all connected to the pneumatic system and the control system.

According to a method or an apparatus for fastening bristles in a bristle carrier (10) without using an anchor a heating (39) is provided in a tool part configured to transport the bristles. After inserting the bristles into anchoring openings (12) in the bristle carrier (10), the anchoring openings are closed by applying pressure.

An oral care implement that includes a handle and a head with a front surface. A plurality of tooth cleaning elements extend from the front surface. The plurality of tooth cleaning elements may include first and/or second sets of peripheral tooth cleaning elements located adjacent to opposing lateral edges of the head. The peripheral tooth cleaning elements may include elastomeric sleeve portions and bristle tuft portions. The elastomeric sleeve portions may be formed as a part of an integrally formed elastomeric component.