The present invention concerns a method of bundling a plurality of monofilaments into a bundle of monofilaments by means of a laser, a paint brush head including such bundle of monofilaments and a paint brush including such paint brush head.

A method for manufacturing a brushing part, the brushing part being configured in a U-shape in order to be placed on the dentition of a jaw of a user, the brushing part forming a channel inside which is designed to receive all or a portion of said dentition, the brushing part comprising at least one tuft of brushing bristles projecting into the interior of said channel by a free end of the bristles of the at least one tuft, the method comprising the following steps: forming the at least one tuft of bristles by assembling a plurality of bristles by an end opposite the free end, so as to form a base of the at least one tuft; fusing the ends forming the base of the at least one tuft so as to form a fused area in one piece, such that an extension of the fused area in a direction that is transverse to an extension direction of the at least one tuft is greater at one extension of the base in the transverse direction prior to the fusing step; placing the at least one tuft on a mold for overmolding the channel of the brushing part; overmolding the channel and the at least one tuft.

The invention provides for an improved article of manufacturing, being a utility brush that is designed to be made from material that minimizes abrasion to surfaces. This brush is made from materials excluding metal and other materials that can cause abrasion to surfaces upon the utility brush making physical contact with those surfaces. The utility brush being further designed to be made of material that excludes adhesives, where adhesives can be vulnerable to decomposition caused by physical contact with chemical solvents that could be applied to the utility brush or to the surfaces. The brush can be further dimensioned and/or customized, to brush surfaces located within oddly dimensioned and/or difficult to access spaces, including small and/or narrow spaces and crevices.

A method for producing a toothbrush head comprises providing at least two bristle tufts that differ in at least one property; arranging the tufts in a hole-perforation plate comprising holes shaped and distributed according to the desired bristle field; arranging an energy source so that the ends of the bristle tufts and the energy source are arranged contactless, wherein the ends of the bristle tufts to be fused are arranged at different distances to the energy source and are adjusted according to the different property; applying energy to the ends of the bristle tufts until fuse balls are formed; transferring the bristle tufts to a subsequent process position, wherein the distance of the fuse ball of at least one bristle tuft to the hole-perforation plate is different from the distance of said fuse ball to the hole-perforation plate in the fusing position before; over-molding of the fuse balls of the bristle tufts with plastic material thereby forming the brush head or the part (10) thereof.

A brush head (32) including: a supporting portion (42) of a brush neck (40); a plurality of bristle tufts (21), each of which comprises a plurality of bristle strands having a proximal end (23) and a free end (25), wherein each of the plurality of bristle tufts comprises a proximal end head portion (26) melted into a first shape within a mold; and an elastomeric matrix (30) comprising at least a portion of the hard brush neck and the proximal end head portions, wherein the first shape of the proximal end head portion is configured to engage the elastomeric matrix such that the bristle tufts are retained within the elastomeric matrix.

The embodiments of the present disclosure provides a brush manufacturing machine (100) comprising a rotary transportation mechanism (160); a bristle carrier loading station (110); one or more bristle dispensing station (120a-d) comprising a bristle feed mechanism (200), a bristle tuft picker (240), and a bristle plant feeder (250), that plants high-density and short length bristle tufts on a bristle carrier (170) with fine pitch openings; an ultrasonic fusion station (130); a heating station (140); an unloading station (150); and a logic controller system for providing programmed commands, controlling the machine sequence and monitoring the feedback of operating conditions at every station through a network of sensors and actuators.

Disclosed are a toothbrush and a method making the same. The toothbrush includes a handle including a handheld portion and a brush head portion, and a cleaning member fixedly connected with the brush head portion. The cleaning member includes a plurality of bristles and a bristle plate formed by integral melting of the bottom of the plurality of bristles and is fixedly connected with the brush head portion. The bristles are closely arranged and the bottom thereof is melted to form the bristle plate, with the unmelted portions erected on the bristle plate. The integral adhesion force of the bristles is enhanced, and the cleaning area between the bristles and the teeth is increased, thereby facilitating cleaning of the teeth. The toothbrush features a simple process of manufacturing and low costs.

A bristle insert, in particular for a brush, is formed by at least one bristle pack having a plurality of plastic bristles whose ends are fused to each other to form a self-supporting holding element. A brush with such a bristle insert, and a method for manufacturing such a bristle insert is also provided.

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.

The invention relates to a toothbrush that is produced by AFT and has a head part and at least one carrier element connected thereto. A front surface of the head part is formed by the top surfaces of the at least one carrier element and has a non-planar three-dimensional configuration, or is capable of assuming such a configuration during intended use. The invention also relates to a process for producing such a toothbrush.