Cosmetic product dispenser including a receptacle equipped with a welded wiper and an applicator

Abstract

The dispenser ( 1 ) includes a receptacle ( 2 ) for containing the cosmetic product ( 7, 7′, 7 ″) and equipped with a threaded neck ( 20 ) and an applicator ( 3 ), typically including a threaded cap ( 30 ), an axial rod ( 32 ) integrated at its [word missing: presumably “end”] into an application material ( 33 ) able to take up a small amount of the product, with the neck ( 20 ) being equipped with a wiper ( 4 ) forming a molded part including a skirt ( 40 ) coaxial to the neck ( 20 ), an upper flange ( 41 ) and a lip ( 42 ) that can wipe the application material ( 33 ), and is characterized in that the wiper ( 4 ), typically via the skirt ( 40 ) and/or the upper flange ( 41 ), cooperates with the neck ( 20 ) by a weld area ( 5 ) such that the wiper ( 4 ) is irreversibly integrated into the neck ( 20 ) by forming a single piece with it.

1 . Dispenser ( 1 ) for cosmetic products ( 7 ,  7 ′,  7 ″) including a receptacle ( 2 ) for containing the cosmetic product ( 7 ,  7 ′,  7 ″) that is equipped with a neck ( 20 ), typically threaded on the outside, and an applicator ( 3 ) that typically includes a cap ( 30 ), usually threaded on the inside, that cooperates with the neck ( 20 ) to seal it and to ensure that the applicator ( 3 ) can be manually gripped, an axial rod ( 32 ) that is integral to the cap ( 30 ) at its upper end and, at its lower end, an application material ( 33 ) that is able to take up a small amount of the product ( 7 ,  7 ′,  7 ″); the neck ( 30 ) has a wiper ( 4 ) that is integral to the neck and that enables wiping of the application material ( 33 ) each time the applicator ( 3 ) is withdrawn from the receptacle ( 2 ) in order to apply the product ( 7 ,  7 ′,  7 ″) to a support; the wiper ( 4 ) forms a part, typically molded, that includes an inner skirt ( 40 ) coaxial to the neck ( 20 ), typically an upper flange ( 41 ) that rests against a lip or upper surface ( 200 ) of the neck ( 20 ), and a lip ( 42 ) inside the body that wipes the application material ( 33 ), inside which the wiper ( 4 ), typically via the skirt ( 40 ) and/or the upper flange ( 41 ) cooperates with the neck ( 20 ) by a weld area ( 5 ) such that the wiper ( 4 ) is irreversibly integrated into the neck ( 20 ) by forming with it a solid bloc part, wherein the weld area ( 5 ) is an area formed: 
 by ultrasonic welding ( 6 ,  61 ), since the materials forming the wiper ( 4 ) and the neck ( 20 ) or the receptacle ( 2 ) are selected so that they can be welded together using ultrasonic welding,    or by laser welding ( 6 ,  63 ), since the materials forming the wiper ( 4 ) and the neck ( 20 ) or the receptacle ( 2 ) are selected so that they can be welded together using laser welding,    or by spin welding ( 6 ,  62 ), since the materials forming the wiper ( 4 ) and the neck ( 20 ) or the receptacle ( 2 ) are selected so that they can be welded together using spin welding,    or by ultrasonic cold forming ( 60 ), since the materials forming the wiper ( 4 ) and the neck ( 20 ) or the receptacle ( 2 ) are selected so that they can be welded together using ultrasonic cold forming,    or by hot die forming ( 64 ), typically with ultrasound, since the materials forming the wiper ( 4 ) and the neck ( 20 ) or the receptacle ( 2 ) are selected so that they can be welded together using hot die forming,    or by high-frequency welding, since the materials forming the wiper ( 4 ) and the neck ( 20 ) or the receptacle ( 2 ) are selected so that they can be welded together using high-frequency welding,    or by induction, as the neck ( 20 ) and/or the wiper ( 4 ) include a metallic material that is able to be heated by induction, and since the materials forming the wiper ( 4 ) and the neck ( 20 ) or the receptacle ( 2 ) are selected so that they can be welded together using induction.    
   
   
       2 . Dispenser according to  claim 1 , wherein the receptacle ( 2 ) is formed of thermoplastic material by molding, blow molding, co-blow molding, injection molding, injection, co-injection, or overmolding.  
   
   
       3 . Dispenser according to  claim 2 , wherein the thermoplastic material is selected from among polyolefins, polystyrenes and styrene-containing copolymers, PVCs, polymethacrylates, polyamides, and polyesters.  
   
   
       4 . Dispenser according to  claim 1 , wherein the receptacle ( 2 ) is made of glass or metal; the metal is typically either aluminum or stainless steel.  
   
   
       5 . Dispenser according to  claim 1 , wherein the wiper ( 4 ) is formed of thermoplastic material by molding, injection, co-injection, or overmolding.  
   
   
       6 . Dispenser according to  claim 5 , wherein the thermoplastic material is selected from among polyolefins, PVCs, acetal resins, polyamides, and polyesters.  
   
   
       7 . Dispenser according to  claim 1 , wherein the weld area ( 5 ) has an area that is typically cylindrical and vertical, formed over all or part of the height of the skirt ( 40 ) coaxial to the neck ( 20 ).  
   
   
       8 . Dispenser according to  claim 1 , wherein the weld area ( 5 ) may include an area that is typically flat, formed over all or part of the upper flange ( 41 ) facing the upper part or lip ( 200 ) of the neck ( 20 ).  
   
   
       9 . Dispenser according to  claim 1 , wherein the wiper ( 4 ) and the neck ( 20 ) also cooperate via ratchet motion means ( 43 ) and ( 22 ), respectively.  
   
   
       10 . Dispenser according to  claim 1 , wherein the cosmetic product ( 7 ) is mascara ( 7 ′) and wherein the support is formed by the eyelashes.  
   
   
       11 . Dispenser according to  claim 1 , wherein the cosmetic product ( 7 ) is nail polish ( 7 ″) and wherein the support is formed by the nails.  
   
   
       12 . Method for manufacturing a dispenser ( 1 ,  1 ′,  1 ″) according to  claim 1 , wherein: 
 a) the receptacle ( 2 ) and the wiper ( 4 ) or, if applicable, its precursor ( 4 ″) are supplied with product,    b) the wiper ( 4 ), or its precursor ( 4 ″) if applicable, is positioned axially inside the neck ( 20 ) of the receptacle ( 2 ),    c) the wiper ( 4 ) or its precursor ( 4 ″) is welded to the neck ( 20 ) by a welding means selected from among: 
 ultrasonic welding ( 61 ),  
 laser welding ( 63 ),  
 spin welding ( 62 ),  
 ultrasonic cold forming ( 60 ),  
 hot die forming ( 64 ),  
 high-frequency welding,  
 induction welding, since the neck or wiper includes a metallic part that can be heated by induction.