Method of duplicating nano pattern texture on object's surface by nano imprinting and electroforming

Abstract

Disclosed is a method of duplicating a nano-pattern texture of the surface of an object through electroforming using an imprint mold, including selecting the object having the surface texture to be duplicated; disposing the selected object and pre-treating the surface thereof; nano-imprinting the surface of the pretreated object, thus duplicating it on a plastic mold; metallizing the surface of the plastic mold through vapor deposition, and performing electroforming, thus manufacturing metal module master molds; trimming the edges of the metal module master molds, performing micro-processing, connecting the metal module master molds, and then performing electroforming, thus manufacturing a large-area metal unit master mold; and electroforming the metal unit master mold, thus producing a duplicate having the surface texture, thus exhibiting an effect in which the skin of a selected natural object can be duplicated on metal having a uniform thickness.

1 . A method of duplicating a nano-pattern texture of a surface of an object through electroforming using an imprint mold, comprising:
 selecting the object having the surface texture to be duplicated;   disposing the selected object and pretreating a surface thereof;   nano-imprinting the surface of the pretreated object, thus duplicating it on a plastic mold;   metallizing a surface of the plastic mold through vapor deposition and performing electroforming, thus manufacturing metal module master molds;   trimming edges of the metal module master molds, performing micro-processing, connecting the metal module master molds, and then performing electroforming, thus manufacturing a large-area metal unit master mold; and   electroforming the metal unit master mold, thus producing a duplicate having the surface texture.   
     
     
         2 . The method according to  claim 1 , further comprising subjecting the duplicate having the surface texture to either vapor deposition or painting for coloring treatment and to coating with a protective film. 
     
     
         3 . The method according to  claim 1 , wherein the object is selected from among natural materials, including animals, plants, insects, and minerals, and artificial materials, including processed materials, woven fabric, and artwork. 
     
     
         4 . The method according to  claim 1 , wherein the pretreating comprises subjecting the surface of the selected object to washing, drying and then nano-thin film treatment to block transfer of impurities so as to facilitate separation of a nano-imprint mold. 
     
     
         5 . The method according to  claim 1 , wherein the nano-imprinting comprises subjecting the surface of the object, which has been subjected to thin film treatment, to PDMS molding, to realize duplication on the mold. 
     
     
         6 . The method according to  claim 5 , wherein the nano-imprinting further comprises hot embossing with a thermoplastic polymer film, to realize duplication on the mold. 
     
     
         7 . The method according to  claim 5 , wherein the nano-imprinting further comprises either UV imprinting or roll imprinting. 
     
     
         8 . The method according to  claim 1 , wherein the nano-imprinting comprises a combination of UV imprinting and roll imprinting. 
     
     
         9 . The method according to  claim 1 , wherein the nano-imprinting comprises a combination of hot embossing and roll imprinting. 
     
     
         10 . The method according to  claim 1 , wherein the metallizing further comprises subjecting the surface of the mold to either spraying or wet silver curing. 
     
     
         11 . The method according to  claim 1 , wherein the micro-processing comprises scanning the surface of the object to be duplicated to set a predetermined standard pattern for connection of the molds and then performing two-dimensional or three-dimensional micro-processing. 
     
     
         12 . The method according to  claim 11 , wherein the micro-processing further comprises nano-processing. 
     
     
         13 . The method according to  claim 1 , wherein the electroforming is performed through either electroplating or electroless plating. 
     
     
         14 . The method according to  claim 13 , wherein the electroplating or electroless plating facilitates separation of the duplicate through thin film treatment. 
     
     
         15 . The method according to  claim 1 , wherein the large-area unit master mold is manufactured by trimming the edges of the module master molds, performing two-dimensional or three-dimensional processing to impart a standard pattern, and connecting trimmed portions of the module master molds. 
     
     
         16 . The method according to  claim 15 , wherein the connecting the module master molds is performed by adhering or welding the module master molds. 
     
     
         17 . The method according to  claim 1 , wherein the unit master mold is manufactured by performing electroforming in a state in which the module master molds are connected to form a large area, thus obtaining a metal unit master mold. 
     
     
         18 . The method according to  claim 1 , wherein the producing the duplicate comprises electroforming the metal unit master mold, thus producing a duplicate made of metal having the surface texture. 
     
     
         19 . A method of duplicating a nano-pattern texture of a surface of an object using an imprint mold, comprising:
 selecting the object, pretreating a surface thereof, performing nano-imprinting to manufacture a plastic mold, metallizing the mold through vapor deposition, and performing electroforming, thus manufacturing metal module master molds;   trimming edges of the metal module master molds, performing two-dimensional or three-dimensional micro-processing to impart a standard pattern set through surface scanning, connecting the metal module master molds, and performing electroforming, thus manufacturing a large-area metal unit master mold; and   producing a duplicate having the surface texture from the unit master mold, and subjecting it to coloring and coating.   
     
     
         20 . The method according to  claim 19 , wherein the standard pattern is shown to be similar to the surface of the object by scanning the surface of the selected object and subjecting the mold to two-dimensional or three-dimensional micro-processing. 
     
     
         21 . The method according to  claim 19 , wherein the duplicate is duplicated in plastic. 
     
     
         22 . The method according to  claim 17 , wherein the object is selected from among natural materials, processed natural materials, processed materials, artwork, and artificial materials. 
     
     
         23 . The method according to  claim 2 , wherein the nano-imprinting comprises a combination of UV imprinting and roll imprinting. 
     
     
         24 . The method according to  claim 2 , wherein the nano-imprinting comprises a combination of hot embossing and roll imprinting. 
     
     
         25 . The method according to  claim 2 , wherein the large-area unit master mold is manufactured by trimming the edges of the module master molds, performing two-dimensional or three-dimensional processing to impart a standard pattern, and connecting trimmed portions of the module master molds. 
     
     
         26 . The method according to  claim 25 , wherein the connecting the module master molds is performed by adhering or welding the module master molds. 
     
     
         27 . The method according to  claim 2 , wherein the producing the duplicate comprises electroforming the metal unit master mold, thus producing a duplicate made of metal having the surface texture.