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.

Description

TECHNICAL FIELD[0001]The present invention relates to the nano-duplication of the surface of an object, and more particularly, to a method of duplicating the nano-pattern of the surface of an object, by duplicating the fine and beautiful surface of an object, which is to be duplicated, using nano-imprinting and electroforming, thus realizing an original texture.BACKGROUND ART[0002]Generally, the skins or surfaces of objects naturally present in the natural world, such as plants, insects, leather, minerals, trees, fiber, and fabric, have very beautiful and soft structures and textures and exhibit natural colors, and thus research and development into the application thereof to decorate the outer appearances of mass-produced industrial products is ongoing. In particular, because mobile communication portable terminals, PDAs, or notebook computers, which are expensive and are manufactured to be luxurious, should always be carried, the surface thereof is required to have low abrasion an...

AI Technical Summary

Benefits of technology

[0011]According to the present invention, the nano-pattern texture of the surface of the selected object is nano-imprinted, thus manufacturing module master molds, which are then subjected to 2D or 3D edge processing and electroforming, thus manufacturing a large-area unit master mold, from which the same texture can then be duplicated on metal or plastic, thus realizing industrial availability.

[0012]In addition, according to the present invention, because electroforming is performed using the master mold having the nano-pattern texture of the surface of the selected object, the same texture can be duplicated on metal having a uniform thickness, thus realizing industrial availability.

[0013]In addition, according to the present invention, the surface of the selected object, having a beautiful and soft texture, structure and color, can be mass-duplicated and mass-produced, thus realizing convenient effects in industrial use.

Problems solved by technology

The case where an object having a predetermined pattern to be duplicated is soft enables complicated and fine surface duplication but makes it difficult to manufacture a mold for use in such duplication.

Further, although an etching process including photolithography and chemical etching may be applied to produce complicated and fine patterns, it is unsuitable for mass production.

In the case of plastic dolls, wire telephones, automobiles or the like, a molding technique is applied at high pressure using a press so that the same shape or outer appearance is mass-duplicated, whereas, in the case of the skin of insects, plants, processed leather, minerals, fiber, and fabric, repeated duplication of a fine surface texture on the nanometer scale cannot be realized by the magnitude of the pressure of the press, and thus, desired colors and patterns must be realized through additional surface treatment.

However, such additional surface treatment is also problematic in that it is difficult to realize a good texture and structure, as in the skin of the insects, plants, processed leather, minerals, fiber, and fabric.

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