The present invention provides a brush and a manufacturing method thereof. A brush of the present invention includes: brush hairs; a brush hair part that has a brush coupler to which the brush hairs are attached; a brush body that support an end of the brush coupler; a coupling member that has a first part coupled to the brush body and a second part coupled to the edge of the brush coupler and has a metallic tube; and a fixing member that prevents shaking of the brush coupler between the brush body and the brush coupler, in which the coupling member and the brush body are combined by pressing the portion of the coupling member where the coupling member and the brush body are in contact with each other.

The present invention is a makeup brush with a releasably connectable ferrule and handle, so that the ferrules and handles are interchangeable. The means for releasably connecting the ferrule and the handle may be, for examples, by friction fit or by the inclusion of sliding features, such as a notch and channel, such being additional methods for releasable connectivity beyond those already patented and/or developed by the inventor.

A device for the production of bristle products is provided. The device includes a device (1) for compacting bristle bundles (2), which device (1) includes at least one preparation The the compacting receptacles (5) are designed to remove bristle bundles (2) from the bundle notches (4) of the preparation arrangement (3) and the compacting tools (6) are designed to compact bristle bundles (2) positioned in the compacting receptacles (5).

A crimper for crimping nail brushes includes a pair of guide shafts and an upper jaw coupled to the pair of guide shafts adjacent an upper end portion of the guide shafts. A lower jaw is moveably coupled to the guide shafts, and includes a lower plate and a lower jaw body coupled to the lower plate. An adjustment plate is coupled to the lower end portions of the guide shafts such that the lower jaw is located between the upper jaw and the adjustment plate. An actuating cam is configured to interface with the lower plate and the adjustment plate, with the actuating cam being rotatable between neutral and actuated positions. The upper jaw and lower jaw move toward each other as the actuating cam rotates from the neutral position toward the actuated position and assume a prescribed distance therebetween when the actuating cam is in the actuated position. A size adjustment dial may be positioned on the device to be selectively rotatable to facilitate adjustment of the crimping jaws based to correspond to the size of the nail brush.