Systems, devices, and methods including a sonic makeup applicator brush

Abstract

A brush comprises a plurality of filaments having a crimp structure and a J structure to provide a full distribution of filaments at an end surface of the brush, wherein the crimp structure of a majority of the filaments is configured with a period length of 2 mm to 5 mm and a peak to peak length of not greater than 0.8 mm, and the J structure is configured with a long length about 0.02 inches to about 1.2 inches, and a difference between the long length and a short length is about 0.2 inches to about 0.5 inches.

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 
     
         1 . A brush, comprising a plurality of filaments having a crimp structure and a J structure to provide a full distribution of filaments at an end surface of the brush, wherein the crimp structure of a majority of the filaments is configured with a period length of 2 mm to 5 mm and a peak to peak length of not greater than 0.8 mm, and the J structure is configured with a long length about 0.02 inches to about 1.2 inches, and a difference between the long length and a short length is about 0.2 inches to about 0.5 inches. 
     
     
         2 . The brush of  claim 1 , wherein a majority of the filaments have a diameter of about 0.002 inches to about 0.02 inches. 
     
     
         3 . The brush of  claim 1 , wherein the long length ends in a taper and the short length ends in a round end or flat cut end. 
     
     
         4 . The brush of  claim 1 , wherein the filaments are bent, and a bent portion of the filament is inserted within a recess in a base of the brush, the bent filaments define the long length and the short length of the J structure. 
     
     
         5 . The brush of  claim 1 , wherein the filaments comprise a blend of filaments of different diameters. 
     
     
         6 . The brush of  claim 5 , comprising a total weight of filaments, wherein the total weight includes from 70 wt % to 90 wt % of 3 mil filaments, from 5 wt % to 20 wt % of 4 mil filaments, and from 5 wt % to 20 wt % of 5 mil filaments, wherein mil is defined as one-thousandth (0.001) of an inch. 
     
     
         7 . The brush of  claim 1 , wherein the filaments comprise a plurality of cross-sectional shapes. 
     
     
         8 . The brush of  claim 1 , wherein the filaments comprise solid and hollow filaments. 
     
     
         9 . The brush of  claim 1 , wherein the filaments are made from polybutylene terephthalate polyester or a thermoplastic elastomer or a combination thereof. 
     
     
         10 . The brush of  claim 1 , comprising a plurality of tufts of filaments, each tuft being separated by spaces from other tufts at a base of the brush, and the filaments fill in the spaces between the tufts to give a uniform distribution of the filaments at a distal end of the brush. 
     
     
         11 . A method for applying a liquid cosmetic, comprising:
 applying a liquid cosmetic to a skin surface with the brush of  claim 1  oscillating at a frequency of about 150 to about 185 Hz and at an amplitude between about 1 degree to 18 degrees peak to peak.   
     
     
         12 . A brush appliance, comprising:
 a brush head coupled to an electro-mechanical resonator of the appliance, wherein the brush head is configured to reciprocate at a sonic frequency; and   one or more magnets on the brush head or the appliance, wherein the one or more magnets are configured to attract iron-containing loose particles.   
     
     
         13 . The brush appliance of  claim 12 , wherein the magnets are permanent or electro-magnetic magnets. 
     
     
         14 . The brush appliance of  claim 12 , comprising:
 one or more brush head magnets positioned on the brush head; and   one or more appliance magnets positioned on the appliance adjacent to the brush head, wherein the one or more brush head magnets are positionable between a first and second position, the first position is a position wherein the brush head magnets have a magnetic field strength, and the second position is a shunt position wherein the magnetic field strength of the brush head magnets is reduced.   
     
     
         15 . The appliance of  claim 12 , comprising a timer to shut off the appliance after being on for a predetermined time period. 
     
     
         16 . The appliance of  claim 12 , wherein the brush head magnets are positioned on a first ring, and the appliance magnets are positioned on a second ring adjacent to the first ring, wherein the first ring is rotatable to align the brush head magnets with the appliance magnets. 
     
     
         17 . A method for applying a dry cosmetic, comprising:
 applying a dry cosmetic to a skin surface with a brush reciprocating at a sonic frequency having a plurality of filaments, wherein the majority of the filaments have a diameter of 3 to 5 mils and a length of 0.3 to 0.7 inches.   
     
     
         18 . The method of  claim 17 , wherein the dry cosmetic is a loose powder or compacted cake. 
     
     
         19 . The method of  claim 17 , wherein the brush head has an oscillating amplitude of 2 degrees to 3 degrees. 
     
     
         20 . The method of  claim 17 , comprising exfoliating skin cells with the brush.