| 摘要 |
The present invention provides a manufacturing method of a security film with micro-pattern which comprises the following steps: a step for supplying a first film to a pattern formation roller (S110); a step for forming a first pattern unit in which at least more than two patterns having the cross section in a shape of an isosceles triangle with a right angle and a point facing the upward direction are successively arranged in parallel, on one surface of the first film using the pattern formation roller (S120); a step for laminating a second resin layer on the upper side of the first pattern unit using a slot die coater (S130); semi-curing the laminated second resin layer (S140); and a step for forming a second pattern unit in which at least more than two patterns having the cross section in a shape of an isosceles triangle with a right angle and a point facing the downward direction to form a vertical symmetric shape with the first pattern are successively arranged in parallel, by pressing the semi-cured second resin layer laminated on the upper side of the first pattern unit which is formed on one side of the first film (S150). [Reference numerals] (AA) START; (BB) END; (S110) A step for supplying a first film to a pattern formation roller; (S120) A step for forming a first pattern unit on one surface of the first film using the pattern formation roller; (S130) A step for laminating a second resin layer on the upper side of the first pattern unit using a slot die coater; (S140) Semi-curing the laminated second resin layer; (S150) A step for forming a second pattern unit by pressing the semi-cured second resin layer and the first pattern unit |
