Applicator for applying product to keratinous fibres with complex core

Abstract

An applicator device for applying a fluid or pasty product to keratinous fibres, includes a core or technically equivalent elongate element extending along a longitudinal axis XX, a plurality of elongate spikes, a first end of which is embedded in the core or in the technically equivalent element and a second end of which is free, the spikes and the core or the technically equivalent element being integral, i.e. formed in one piece. The core and/or the technically equivalent element has at least one recess or negative relief opening on the outer surface of the core or the technically equivalent element at an opening, the at least one recess being obtained by undercutting.

1 .- 10 . (canceled) 
     
     
         11 . An applicator device for applying a fluid or pasty product to keratinous fibers, comprising:
 an elongate element extending along a longitudinal axis XX;   a plurality of elongate spikes having a first end embedded on the elongate element and a second end that is free, wherein the elongate element and the plurality of elongate spikes are integral;   at least one opening on an exterior surface of the elongate element; and   at least one recess or negative relief opening on the exterior surface at the at least one opening wherein the at least one recess or negative relief opening has an undercut profile.   
     
     
         12 . The applicator device according to  claim 11  wherein at least one part of the exterior surface of the elongate element is concave. 
     
     
         13 . The applicator device according to  claim 12 , wherein the elongate element comprises a plurality of contiguous exterior faces and at least of one the contiguous exterior faces includes a surface that is concave relative to the exterior of the elongate element. 
     
     
         14 . The applicator device according to  claim 11 , wherein the at least one opening has an elongate form along the longitudinal axis XX. 
     
     
         15 . The applicator device according to  claim 11 , wherein the at least one opening has a helical form about the longitudinal axis XX. 
     
     
         16 . The applicator device according to  claim 11 , wherein the elongate element comprises a plurality of recesses or negative relief openings radially spaced over a transverse section. 
     
     
         17 . The applicator device according to  claim 11  wherein the elongate element has between 2 and 64 recesses or negative relief openings radially spaced over a transverse section. 
     
     
         18 . The applicator device according to  claim 11  wherein the elongate element has between 2 and 24 openings, in succession along the longitudinal axis XX, which are aligned. 
     
     
         19 . The applicator device according to  claim 19  further comprising a concave face on the elongate element arranged between lines formed by the openings.