Brush for cosmetic implements and manufacturing method of the same

Abstract

A brush for cosmetic implements includes a brush part attached to a support member; the brush part includes a plurality of synthetic resin fibers whose tip end has a conically tapered surface, and a plurality of fiber bundles composed of a plurality of synthetic resin fibers is formed at least three places in a radial circumferential surface of the support member, and further formed in an axial direction of the support member. Provided is a brush for a cosmetic implements in which a brush bristle having a tapered end is provided around the support member in the radial direction, and a manufacturing method thereof.

Description

BACKGROUND OF THE INVENTIONField of the Invention[0001]The present invention relates to brushes for cosmetic implements and a manufacturing method of the same. More specifically the invention relates to brushes for cosmetic implements such as a mascara brush, having bristles that extends in radial directions of the support member, perpendicular to the axis thereof and a manufacturing method of the same.Description of Related Art[0002]As a brush for cosmetic implements having bristles that extends in radial directions of the support member, perpendicular to the axis thereof, a mascara brush, for example, to apply mascara onto eyelashes is known. In this mascara brush, for example, a large number of the brush bristles are fixed between two twisted wires such that the bristles extend from the wires (the axis) in radial directions, perpendicular to the axis. In addition, some brushes have bristles (fibers), free ends of which are formed to be tapered, and are capable of easily entering ...

AI Technical Summary

Benefits of technology

The patent describes a method for manufacturing a brush for cosmetic uses with tapered tips on the bristles. The method involves bundling synthetic resin fibers on a support member made of metal wires, and then immersing the brush part in a solution bath containing a soluble liquid. The brush part is then rubbed against a polishing / rubbing blade to dissolve and swell the surface of the fibers, resulting in tapered tips on the bristles. This manufacturing process produces a brush with improved mascara retention, prevention of lumping and clumping of lashes, and reduced redipping. Overall, the invention provides a cost-effective and efficient way to manufacture a brush with tapered tips for cosmetic uses.

Problems solved by technology

Accordingly, it is inconvenient to users to have to apply mascara to the eyelashes while paying attention to the position of the brush part.

To eliminate such an inconvenience, it is possible to insert the plural brush parts around all the circumference of the support member, but this raises an additional problem to increase the radius of the support member.

Another method is to implant tapered bristles at plural positions on the circumferential surface of the axial direction by fusing or adhesion, but this further causes to make the length of the bristles (tip part) uneven.

As described above, forming the tip ends of the bristles (fibers) to have a conical shape is difficult by tapering with whetstones or files, and tapering with thermal processing may adversely cause the bristles to fuse to each other.

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