Applicator for cosmetic product, in particular mascara, and associated applicator assembly

Abstract

An applicator cosmetic product includes a core and a plurality of protuberances. The core extends along a longitudinal extension direction from a first end (e.g., a proximal end) towards a second, opposite free end (e.g., a distal end). The protuberances project from the core towards an opposite free end. The protuberances can be arranged in a plurality of first longitudinal rows regularly distributed around the core, and in a plurality of second longitudinal rows regularly distributed around the core and alternating regularly with the first longitudinal rows. The first longitudinal rows have, along the core, a rectilinear increase in the height of the protuberances from the proximal end towards a distal portion. The second longitudinal rows have, along the core, a rectilinear decrease in the height of the protuberances from the proximal end towards the distal portion.

1 . An applicator for cosmetic product, comprising:
 a core extending along a longitudinal extension direction from a first end, referred to as the proximal end, towards a second, opposite free end, referred to as the distal end, and   a plurality of protuberances projecting from the core towards an opposite free end,   
       wherein said protuberances are arranged in a plurality of first longitudinal rows regularly distributed around the core, and in a plurality of second longitudinal rows regularly distributed around the core and alternating regularly with the first longitudinal rows, 
       the first longitudinal rows having along the core a rectilinear increase in the height of the protuberances from the proximal end towards a distal portion and the second longitudinal rows having along the core a rectilinear decrease in the height of the protuberances from the proximal end towards the distal portion. 
     
     
         2 . The applicator according to  claim 1 , wherein the rectilinear increase of the first longitudinal row and/or the rectilinear decrease of the second longitudinal row extend over ¾ to 9/10 ths  of the length of the core. 
     
     
         3 . The applicator according to  claim 1 , wherein the rectilinear increase of the first longitudinal row and/or the rectilinear decrease of the second longitudinal row are monotonic. 
     
     
         4 . The applicator according to  claim 1 , wherein the increase and/or the decrease in the height between each successive protuberance of the same first or second longitudinal row is between 0.05 mm and 0.2 mm, preferably equal to 0.07 mm. 
     
     
         5 . The applicator according to  claim 1 , wherein the protuberances of the first and second longitudinal rows located in the distal portion have a rectilinear decrease in their height along the core and/or a constant height in the direction of the distal end. 
     
     
         6 . The applicator according to  claim 1 , wherein the distal portion extends over a length of between ¼ and 1/10 th  of the length of the core. 
     
     
         7 . The applicator according to  claim 1 , wherein the core has a diameter decreasing towards the distal end in the distal portion and/or the core has a constant diameter over a whole length extending from the proximal end towards the distal portion. 
     
     
         8 . The applicator according to  claim 1 , wherein the applicator comprises the same number of first and second longitudinal rows. 
     
     
         9 . The applicator according to  claim 1 , wherein the protuberances of the first longitudinal rows are offset by half a pitch relative to the protuberances of the second longitudinal rows. 
     
     
         10 . The applicator according to  claim 1 , wherein the free end of the protuberances defines an envelope surface, the envelope surface having at least one hollow extending angularly over at least part of the periphery of the envelope. 
     
     
         11 . The applicator according to  claim 10 , wherein the hollow has a bottom wherein the height of the protuberances of the first and second longitudinal rows is substantially similar. 
     
     
         12 . The applicator according to  claim 10 , wherein the hollow is located in the middle of the length of the core. 
     
     
         13 . The applicator according to  claim 1 , wherein the protuberances of the first and second longitudinal rows are arranged in first and second radial rows, the first radial rows of the protuberances of the first longitudinal rows alternating regularly with the second radial rows of the protuberances of the second longitudinal rows. 
     
     
         14 . The applicator according to  claim 1 , wherein in a first portion of the applicator extending from the proximal end towards the hollow, the protuberances of the first longitudinal rows have a lower height than the protuberances of the second longitudinal rows and/or in a second portion of the applicator extending from the hollow towards the distal portion, the protuberances of the first longitudinal rows have a height lower than the protuberances of the second longitudinal rows. 
     
     
         15 . The applicator according to  claim 1 , wherein the protuberances of the first longitudinal rows are of a first type and the protuberances of the second longitudinal rows are of a second type, the first type and the second type being different in nature selected from diameter, material, shape, color, hardness and flexibility. 
     
     
         16 . An applicator assembly for cosmetic product, comprising:
 a container comprising a body forming a reservoir configured to contain the cosmetic product, and   an applicator of the cosmetic product according to  claim 1  adapted to be attached to the container, so that the applicator is housed inside the reservoir.