Applicator device for applying a fluid or pasty product to keratin fibres

Abstract

An applicator device for applying a product of the fluid or pasty type to keratin fibres includes a central core of elongate shape which extends along a longitudinal axis XX, at least one row of elongate spikes that include a first end embedded in the core and/or in a flexible stem embedded in the central core at two points, and a second, free end, the spikes, the stem(s) and the core being integral, i.e. formed in one piece. According to the invention, all or some of the spikes are part of a row having a surface (a) belonging to a plane (b) curved in a spiral about the axis XX.

1 .- 12 . (canceled) 
     
     
         13 . A device for applying a fluid or pasty product to keratin fibers, comprising:
 an elongate central core extending along a longitudinal axis XX;   at least one row of elongate spikes comprising a first end embedded in the core and/or in at least one flexible stem embedded in the central core at two points; and   a second free end;   the spikes, the stem(s) and the core are integrally formed as a single piece, wherein all or part of the spikes that are part of a row have a surface belonging to a plane curved in a spiral about the XX axis.   
     
     
         14 . The device according to  claim 13 , wherein the spiral plane is defined between first (Y) and second (Y′) transverse axes, which have an angular offset of 1° to 720°. 
     
     
         15 . The device according to  claim 13 , wherein the at least one flexible stem has a spiral shape which is part of the spiral plane. 
     
     
         16 . The device according to  claim 13 , wherein all or part of the spikes each have at least one recess or negative relief defined by the spiral plane. 
     
     
         17 . The device according to  claim 13 , wherein all or part of the spikes each have at least one projection or positive relief. 
     
     
         18 . The device according to  claim 13 , comprising several rows of spikes substantially arranged according to several different spiral planes. 
     
     
         19 . The device according to  claim 13 , wherein it comprises several longitudinal areas having different spike arrangements, at least one of the longitudinal areas being provided with spikes aligned along the XX axis. 
     
     
         20 . The device according to  claim 13 , wherein the spikes have different heights according to their location on the core and/or on the flexible stem. 
     
     
         21 . The device according to  claim 13 , wherein the spikes have embedded bases that are larger than the second free ends and are preferably contiguous. 
     
     
         22 . The device according to  claim 13 , comprising at least one stem that is flexible over a first portion of its length, and spikes implanted in the core over a second portion of its length. 
     
     
         23 . The device according to  claim 13 , wherein the flexible stems form a first assembly and a second assembly, stems of the first assembly being embedded at a distal end of the core and substantially at the middle of the core, stems of the second assembly being embedded substantially at the middle of the core and at a proximal end of the core. 
     
     
         24 . The device according to  claim 13 , wherein it is molded by multi-material injection.