KR20020005829A - Method of manufacturing a Metal-Sheet-Film - Google Patents

Abstract

PURPOSE: Provided is a preparation method of good quality metal sheet film without pin holes and with a large area of uniform thickness, because the metal is vapor deposited in the molecular level. The existing method of laminating an annealed metal sheet by the roller gives non-uniform thickness and produce only small area metal sheet with many pin holes. CONSTITUTION: The preparation method comprises: making base film for the base material which is used for accessories and interior application, the base films being a mixture of PVC and ABS or polyester alone; vapor depositing a metal layer on the above base film by sputtering, ion beam, electron beam and evaporation method, the metal of the metal layer being chosen from gold, silver and platinum with 10-2,000 angstrom thickness, and coating super light resin layer on the above metal layer in order to protect the metal sheet from human finger prints or soiling by the unwanted materials.

Description

Method for manufacturing metal sheet film {Method of manufacturing a Metal-Sheet-Film}

The present invention relates to a method for producing a metal sheet film, and more particularly, to a method for producing a metal sheet film used as a basic material for accessories and interiors.

Metallic luster is widely used in accessories and interiors. In particular, gold has been used as a material for various valuables and amulets. In recent years, gold foil is deposited on a base film and coated on the gold foil to produce a metal sheet film, and important matters are printed on the metal sheet film and sold as souvenirs.

Conventionally, mechanically rolled gold foil is crimped to a laminating film using a machine such as a roller. As described above, the gold foil mechanically compressed using a roller or the like is not uniform in thickness, there are many pinholes, and the like, and the process is difficult because the gold foil is mechanically compressed. In addition, in order to make the thickness of the gold foil more uniform and to suppress the occurrence of pinholes, the production of a metal sheet film having a small area is inevitably reduced.

Therefore, the technical problem to be achieved by the present invention is to provide a method for producing a metal sheet film, the thickness of the metal layer is uniform, can produce a large area and the productivity can be improved.

1 is a cross-sectional view of a metal sheet film according to an embodiment of the present invention.

Method for producing a metal sheet film of the present invention for achieving the above technical problem, the method comprising the steps of preparing a base film for manufacturing accessories and basic materials for interior; Depositing a metal layer on the base film using any one method selected from the group consisting of sputtering deposition, ion beam deposition, electron beam deposition, and evaporation deposition; And forming an ultrahard resin layer on the metal layer to prevent damage to the metal layer or to print the contents.

In this case, the base film may be made of a synthetic resin or polyester (Polyester) mixed with poly vinyl chloride (PVC) and ABS (Acrylo Butadiene Styrene, ABS) resin.

Further, the metal layer may be made of any one selected from the group consisting of gold, silver, and platinum.

Furthermore, the metal layer may be made of an alloy having gloss of the gold, silver, and platinum.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of a metal sheet film according to embodiments of the present invention.

Referring to FIG. 1, a first embodiment of the present invention will be described. First, a polyester film 100 for preparing accessories and basic materials for interiors is prepared. Since the polyester film has a high elastic strength, there is an advantage in that the metal sheet film according to the present invention can be manufactured thinly. Then, the fingerprint and foreign matter of the person stuck to the surface of the polyester film 100 is removed using an ultrasonic cleaning device. The ultrasonic cleaning device is constituted by an ultrasonic vibrator in a container containing a cleaning liquid. When the ultrasonic vibrator is operated, the cleaning liquid in the container vibrates and the fingerprint and foreign matter can be efficiently removed from the polyester film 100 due to the vibration.

Subsequently, the acrylic coating layer 200 is formed on the polyester film 100 by using a contact material to improve wear resistance and weather resistance of the polyester film 100. Then, plasma etching is performed on the acrylic coating layer 200. This is to modify the surface of the acrylic coating layer 200 to improve adhesion between the acrylic coating layer 200 and the metal layer 300 and to remove contaminants present on the surface of the acrylic coating layer 200.

Next, a metal layer 300, for example, gold foil is deposited on one surface of the acrylic coating layer 200 by a magnetron sputtering deposition method. The process of forming the metal layer 300 by the magnetron sputtering deposition method is as follows. First, gas is introduced into a reaction chamber provided with a substrate and a target metal, and then maintained in a vacuum state. When a high voltage is applied to the target metal to plasma the gas in the reaction chamber, the plasma collides with the target metal to remove atomic units from the target metal, and the atomic units are deposited on a substrate provided in the reaction chamber. At this time, if a magnetic field is further applied to the target metal, a high density plasma is generated near the target metal. Therefore, using the magnetron sputtering deposition method, a thin film is deposited on the substrate at high speed.

In this embodiment, an inert gas was used as the gas flowing into the reaction chamber, and gold was used to form a gold foil 300 having a thickness of 10 to 2,000 mm 3 on one surface of the acrylic coating layer 200 using gold as a target metal. As such, since the gold foil 300 is deposited in atomic units, a uniform thin film may be formed. Meanwhile, the gold foil 300 may be deposited on other surfaces of the acrylic coating layer 200 according to the use of the metal sheet film. The color of the deposited thin film may be changed by changing the kind of gas introduced into the reaction chamber.

Next, the ultra-hard resin coating layer 400 is formed on the gold foil 300 to protect the gold foil 300 from human fingerprints or foreign substances, to prevent damage to the gold foil 300, and to print desired contents. .

Referring to FIG. 1, a second embodiment of the present invention will be described. First, a film 100 for thickness adjustment is prepared using a synthetic resin obtained by mixing polyvinyl chloride and ABS resin. Then, the ultrasonic cleaning device is used to remove fingerprints and foreign substances of the person on the surface of the thickness adjustment film 100. Subsequently, a gold foil deposition flange 200 of the same material as the film 100 for thickness adjustment is provided, and the gold foil 300 is deposited thereon. Then, the gold foil deposition film 200 in which gold foil is deposited is bonded to the film 100 for thickness adjustment.

The synthetic resin in which the polyvinyl chloride and the ABS resin are mixed can deposit the gold foil 300 more easily than in the case of the polyester film of the first embodiment. On the other hand, the elastic strength is weak to form a thicker than the case of the polyester film of the first embodiment described above, if the thickness is thick, it is difficult to manufacture smoothly. Therefore, when manufacturing a metal sheet film using the synthetic resin which mixed polyvinyl chloride and ABS resin, it consists of the film 100 for thickness adjustment and the film 200 for gold foil deposition. At this time, since the thickness adjusting film 100 and the gold foil deposition film 200 are made of the same material, they are bonded using heat and pressure without using an adhesive.

Next, the ultra-hard resin coating layer 400 is formed on the gold foil 300 to protect the gold foil 300 from human fingerprints or foreign substances, to prevent damage to the gold foil 300, and to print desired contents. .

As described above, according to the method of manufacturing the metal sheet film of the present invention, since the metal is formed by being deposited in atomic units, it is possible to deposit a high quality metal layer having no pinhole and having a uniform thickness.

In addition, the production speed can be improved, and a metal sheet film having a large area can be produced.

Furthermore, there is no mechanical friction in depositing the metal layer, thereby maintaining the inherent gloss of the metal.

Furthermore, in the depositing of the metal layer, gases reacting with the noble metal may be introduced to change the color of the deposited metal layer.

The present invention is not limited to the above embodiments, and it is apparent that many modifications are possible by those skilled in the art within the technical spirit of the present invention.

Claims (5)

Preparing a base film for making accessories and interior materials; Depositing a metal layer on the base film using any one method selected from the group consisting of sputter deposition, ion beam deposition, electron beam deposition, and evaporation deposition; Forming a superhard resin layer on the metal layer to prevent damage to the metal layer or to print contents. The method of claim 1, wherein the base film is made of a synthetic resin or polyester mixed with polyvinyl chloride and ABS resin. The method for producing a metal sheet film according to claim 1, wherein the metal layer has a thickness of 10 to 2,000 kPa. The method of claim 1, wherein the metal layer is made of any one selected from the group consisting of gold, silver, and platinum. The method of claim 1, wherein the metal layer is made of an alloy having gloss of gold, silver, and platinum.