Artificial nail having soft back part and method for producing it

Abstract

A method for producing an artificial nail having a soft back part is disclosed, which comprises an injection molding step for inject-molding an artificial nail figure using plastic; a smoother coating step for coating a smoother on an upper side, a lower side or upper and lower sides of the back part so as to smoothen the back part attached to a surface of a natural nail in the inject-molded artificial nail figure; and a smoother penetration step for penetrating the smoother into a surface of the back part of the artificial nail figure, whereby the back part of the artificial nail figure is more flexible and smoother than the front part of the same.

1 . A method for producing an artificial nail having a soft back part, comprising:
 an injection molding step for inject-molding an artificial nail figure using plastic;   a smoother coating step for coating a smoother on an upper side, a lower side or upper and lower sides of the back part so as to smoothen the back part attached to a surface of a natural nail in the inject-molded artificial nail figure; and   a smoother penetration step for penetrating the smoother into a surface of the back part of the artificial nail figure,   whereby the back part of the artificial nail figure is more flexible and smoother than the front part of the same.   
   
   
       2 . The method of  claim 1 , wherein said smoother is at least one among a solvent and a plasticizer or a mixture of the same with respect to a plastic material used for inject-molding the artificial nail figure. 
   
   
       3 . The method of  claim 2 , wherein a smoother is penetrated into a surface of the artificial nail figure by applying one or at least one of heat, ultrasonic waves and high frequency waves in the smoother penetration step. 
   
   
       4 . The method of  claim 2 , further comprising a hardener coating step for coating a hardener on an upper side, a lower side or upper and lower sides of the front part so as to harden a front part of the artificial nail figure before or after the smoother penetration step. 
   
   
       5 . The method of  claim 4 , further comprising a hardener penetration step for penetrating a hardener into a surface of the front part of the artificial nail figure, and said hardener penetration step is performed concurrently along with the smoother penetration step when the hardener coating step is performed before the smoother penetration step, and is performed after the smoother coating step when the hardener coating step is performed after the smoother penetration step. 
   
   
       6 . The method of  claims 1 , wherein said artificial nail figure inject-molded in the injection molding step has a thick front part with the back part getting thinner and thinner in a direction of its end. 
   
   
       7 . The method of  claims 1 , wherein said plastic material in the injection molding step is formed of one selected from PS resin, ABS resin(acrylonitrile butadiene styrene copolymer), SBS block resin(Styrene-Butadiene-Styrene Block Copolymer), EVA resin(Ethylene Vinyl Acetate Copolymer) or is formed of a mixed resin containing at least one selected from the above resins. 
   
   
       8 . In an artificial nail whose back part of a nail shape inject-molded using a plastic is attached to a surface of a natural nail, an artificial nail characterized in that said back part contains a more amount of smoother components as compared to the front part as a smoother is coated on an upper side, a lower side or upper and lower sides and is penetrated into a surface, whereby the back part is more flexible and smoother as compared to the front part. 
   
   
       9 . The artificial nail of  claim 8 , wherein said smoother is at least one among a solvent and a plasticizer with respect to a plastic material or is a mixture of the same. 
   
   
       10 . The artificial nail of  claim 9 , wherein said front part of the artificial nail has a more amount of hardeners as compared to the back part as a hardener is coated on an upper side, a lower side or upper and lower sides and is penetrated into a surface of the same. 
   
   
       11 . The artificial nail of  claims 8 , wherein a front part of said artificial nail is thicker, and said back part is getting thinner and thinner in a direction of its end. 
   
   
       12 . The artificial nail of  claims 8 , wherein a plastic material of the inject-molded artificial nail is formed of one selected from PS resin, ABS resin(acrylonitrile butadiene styrene copolymer), SBS block resin(Styrene-Butadiene-Styrene Block Copolymer), EVA resin(Ethylene Vinyl Acetate Copolymer) or is formed of a mixed resin containing at least one selected from the above resins.