Films expressing metallic appearance using ultraviolet curable resin and method of manufacturing thereof

A method for manufacturing an interior film for providing a metallic appearance, the method comprises:

• preparing a base sheet;
• forming a UV-curable resin layer on a lower surface of the base sheet, wherein the UV-curable resin layer has hairlines on a surface thereof, the hairlines have a depth ranging from 0.3 μm to 0.7 μm, and the hairlines comprise:
• hairlines extending in a length direction of the film;
• hairlines extending in a width direction of the film, wherein the hairlines extending in the width direction of the film satisfy Equation 1:
• a>b <Equation 1>
• a:
• an angle defined between a length direction (l) of the hairlines extending in the width direction of the film and a length direction of the film, and
• b:
• an angle defined between the length direction (l) of the hairlines extending in the width direction of the film and a width direction of the film;
• forming a metal layer on a lower surface of the UV-curable resin layer;
• forming a primer layer on a lower surface of the metal layer;
• forming an adhesive layer on a lower surface of the primer layer;
• and
• forming a protective layer on an upper surface of the base sheet,
• wherein forming the UV-curable resin layer comprises:
• preparing a first roll with the base sheet placed on a surface thereof;
• placing the first roll adjacent to a second roll having a convex-concave pattern on a surface thereof to form a gap between the first roll and the second roll, and placing a curing lamp in proximity to the first roll and the second roll;
• and
• supplying a UV-curable resin to the gap between the first roll and the second roll and rotating at least one of the first roll or the second roll to form the UV-curable resin layer having the hairlines on the surface thereof.