Molded disc type bristle technology for mascara and eyebrow

Abstract

A method for manufacturing a cosmetic applicator brush is provided. The cosmetic applicator brush comprises a plurality of discs assembled relative to one another, and each disc has a body with a plurality of bristles extending radially therefrom. The method comprises the step of forming the cosmetic applicator brush by a block core method, where parting lines are formed in both radial and axial directions of the cosmetic applicator brush in the block core method.

1 . A method for manufacturing a cosmetic applicator brush, the cosmetic applicator brush comprising a plurality of discs assembled relative to one another, each disc having a body with a plurality of bristles extending radially therefrom, comprising the step of:
 forming the cosmetic applicator brush by a block core method;   wherein parting lines are formed in both radial and axial directions of the cosmetic applicator brush in the block core method.   
     
     
         2 . The method for manufacturing the cosmetic applicator brush according to  claim 1 ,
 wherein each disc body has a first face with a projection extending therefrom and an opposed second face with an indentation defined therein, wherein the projection and indentation are angularly offset from one another and the interaction of a projection of one disc with the indentation of an adjacent disc maintains the angular relationship between the adjacent discs,   wherein angular offset of the projection and the indentation of each disc is between 0° and 360°, and   wherein the angular offset is different for at least two of the discs.   
     
     
         3 . The method for manufacturing the cosmetic applicator brush according to  claim 1 ,
 wherein the method does not require a split-core parting line structure to provide various arrangements of the plurality of bristles and designs on the plurality of discs.   
     
     
         4 . The method for manufacturing the cosmetic applicator brush according to  claim 1 ,
 wherein adjacent discs are maintained at an angular relationship with respect to one another independent of a disc specific keying element to show a plurality of design variations of the cosmetic applicator brush.