A method of manufacturing a brush includes providing a core wire section having a proximal end and a distal end, and an integral tip on the distal end, forming a bristle element having a throughbore, and inserting the core wire section into the throughbore until the bristle element is received on the core wire section.

A mold insert has at least one filament cavity and a stack of at least a first and second insert plates, wherein the first plate has a front face that closely abuts a front face of the second insert plate. A portion of the a filament cavity is provided in at least one of the front faces of the first and second insert plates such that the filament cavity is open at a top surface of the mold insert but does not extend to a bottom surface of the mold insert. A venting cavity is provided in the same front face of the insert plate in which the portion of the at least one filament cavity is provided. The venting cavity, which is in air-conducting connection with the blind-hole end of the filament cavity, has a depth between 1 μm and 20 μm. A method of manufacturing the mold insert includes providing first and second insert plates, forming a portion of a filament cavity into at least one of the front faces of the insert plates, forming a venting cavity into the front face with the filament cavity, and bringing the front faces of the plates into close abutment to form a filament cavity.

A mold insert has at least one filament cavity and a stack of at least a first and second insert plates, wherein the first plate has a front face that closely abuts a front face of the second insert plate. A portion of the a filament cavity is provided in at least one of the front faces of the first and second insert plates such that the filament cavity is open at a top surface of the mold insert but does not extend to a bottom surface of the mold insert. A venting cavity is provided in the same front face of the insert plate in which the portion of the at least one filament cavity is provided. The venting cavity, which is in air-conducting connection with the blind-hole end of the filament cavity, has a depth between 1 μm and 20 μm. A method of manufacturing the mold insert includes providing first and second insert plates, forming a portion of a filament cavity into at least one of the front faces of the insert plates, forming a venting cavity into the front face with the filament cavity, and bringing the front faces of the plates into close abutment to form a filament cavity.

A method and device for the production of bristle fields for brushes is provided. The method for producing bristle fields includes filling bundle holders (3) of a bristle field support plate (2) with bundles of bristles using at least two different funnel plates (4, 5). The device includes at least two different funnel plates with complementary hole patterns in relation to a complete hole pattern (13) formed by inlet openings (12) of the bundle holders (3) on the bristle field support plate.

An interdental cleaning tool is provided, which is capable of suppressing from being broken. The interdental cleaning tool 1 includes: a base material portion 10 including a base section 11 and a shaft section 12 extending from the base section 11; a soft portion 20 including a covering section 21 that covers a distal end part 12a of the shaft section 12, and a plurality of projections 22 extending from the covering section 21; and an extension soft portion 30 covering a middle part 12b of the shaft section 12, the middle part being located further toward the proximal side than the soft portion 20 so as to extend the covering section 21 toward the proximal side of the shaft section 12, the extension soft portion 30 not being provided with the projections 22.

A brush includes a core wire section having a proximal end and a distal end and a plurality of discs received on the core wire section, the plurality of discs defining a brush head. The brush head is shaped by at least one of trimming the plurality of discs of the brush head and/or bending a portion of the core wire section.

A brush includes a core wire section having a proximal end and a distal end and a plurality of discs received on the core wire section, the plurality of discs defining a brush head. The brush head is shaped by at least one of trimming the plurality of discs of the brush head and/or bending a portion of the core wire section.

A method of manufacturing a brush includes providing a core wire section having a proximal end and a distal end, and an integral tip on the distal end, forming a bristle element having a throughbore, and inserting the core wire section into the throughbore until the bristle element is received on the core wire section.

A method of manufacturing a brush includes providing a core wire section having a proximal end and a distal end, and an integral tip on the distal end, forming a bristle element having a throughbore, and inserting the core wire section into the throughbore until the bristle element is received on the core wire section.

A push broom head comprising a base with a leading edge and a trailing edge separated by a width of the base; and tufts of bristles extending from a surface of the base; the tufts of bristles being arranged in rows of bristles of decreasing stiffness from the leading edge to the trailing edge of the base, with a leading row of very stiff bristles and a trailing row of bendable bristles, thereby combining increased ease of handling by a user for an efficient sweeping action, the leading rows loosening and moving heavier particles and the trailing rows loosening and moving finer particles not acted upon by the stiff leading rows.