Provided is a method for manufacturing a sheet for use in a tongue plaque cleaner, capable of reliably cutting loops of thread members provided at a given density, and forming thread members each having a shape with an arc portion sufficient enough to scrape off tongue plaque, through steps that are simple, low-cost and suitable for mass production. A method for manufacturing a sheet 1 for use in a tongue plaque cleaner for scraping off tongue plaque, includes: a step of heating a sheet material having multiple looped thread members 2 protruding from one surface of the sheet material, at a temperature below the melting point of the thread members 2; and a step of forming first thread members 3, 8 and second thread members 4, 9 by cutting loops of the thread members 2 heated.

A cell of a brush making device for making at least a part of a toothbrush, having a pin unit having at least one pin, a pin holding sub-unit and a pin guiding sub-unit, the pin having a first section having a first end and a second section having a second end, the first section having a holding structure, and at least one spring section arranged between the first section and the second section, the pin holding sub-unit having a holding structure that is engaged with the holding structure of the pin for fixedly holding the pin, the pin holding sub-unit and the pin guiding sub-unit being arranged for being movable along a first direction towards and away from each other, and the pin guiding sub-unit having a channel for guiding at least a portion of the second section of the pin, the channel being inclined against the first direction.

Embodiments described herein generally relate to a brush, a method of forming a brush, and a structure embodied in a machine readable medium used in a design process are provided. The brush includes a body and a channel configured to deliver a cleaning liquid through holes in the body. The method forms the brush using 3D printing. The structure provides details for making the brush. The disclosure herein allows a method of forming a brush that does not require the removal of active porogen.

The invention relates to a brush, in particular an interdental brush, which comprises a bristle-carrying stem defining a longitudinal direction and having an elongate support core, a bristle area having bristles projecting from the bristle-carrying stem, and a neck element connecting the support core to a handle, wherein the handle, the support core and the neck element are injection moulded integrally from a first plastics component, and wherein a second plastics component in the form of an integral layer and the bristles projecting therefrom is mounted on the support core. The invention also relates to corresponding product groups and to a corresponding method.

Provided is disclosure for hybrid material post-CMP brushes and methods for forming the same. Embodiments of a hybrid material post-CMP brush may comprise at least two layers, where the hybrid brush is used to clean various surfaces, such as surfaces of semiconductor substrates. An example hybrid brush for cleaning a surface includes a mandrel, a molded first layer formed about the mandrel, where the molded first layer comprises a first material, and a molded second layer surrounding the molded first layer, where the molded second layer comprises a second material.

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.

The invention relates to a method for producing a brush, particularly in the form of a mascara applicator, with bristles injection molded out of different injection molding compounds, using an injection mold that has a main cavity, which forms the bristle support, and secondary cavities branching off from this, with each secondary cavity forming a single bristle and with at least one first injection molding compound being injected into the main cavity, followed by a second injection molding compound in successive steps; at least one slider is inserted into the main cavity and closes part of the secondary cavities so that the first injection molding compound only travels into another part of the secondary cavities after which the slider is withdrawn and the second injection molding compound is injected so that it travels into the secondary cavities previously closed by the slider.

An application element and an applicator comprising pluralities of said application elements on a molded support is provided for applying a product such as a cosmetic, a medicinal or a care product. At least one application element of the applicator includes a base portion and at least one thin projection. The thin projection includes at least one surface and wherein the at least one outer surface flushes with at least a portion of an outer surface of the base portion.

A method of producing a brush for the cleaning of electronic components. In this method, a plastic core is prepared and submerged into a solvent to melt the outer surface of the core. While the outer surface of the plastic core is still partially melted, it is rolled through a trough of powdered polyvinyl alcohol (PVA) such that granules of PVA melt into and subsequently become embedded at the outer surface. As the solvent evaporates, the outer surface of the core re-hardens and the granules of PVA become firmly entrapped at the outer surface. The PVA covered shaft is placed in a mold, which is then filled with a PVA solution. As the solution cures, it forms a strong bond with the PVA granules that are embedded at the surface of the plastic core. Thereafter, the mold components are disassembled, leaving behind the finished cored brush.

A resin sheet having hair-like bodies arranged regularly on at least one surface of a base layer containing a thermoplastic resin, the surface with the hair-like bodies having a coefficient of friction, as measured according to KES, of 0.5 or more and 1.0 or less, a deviation of the coefficient of friction, as measured by KES, of 0.010 or more and 0.025 or less, and a deviation of roughness, as measured by KES, of 0.2 or more and 1.5 or less.