WRAPPER FOR VACUUM PACKING, APPARATUS FOR MANUFACTURING THE SAME AND VACUUM PACK USING THE WRAPPER FOR VACUUM PACKING

摘要

PURPOSE: A vacuum pack using a vacuum packing material and a manufacturing device thereof is provided to increases an air induction force at both edge parts of a vacuum pack. CONSTITUTION: A film is divided into multiple areas with a size corresponding to the widthwise size of a vacuum pack A first pattern layer(15a) is formed on the widthwise center of each area of multiple areas A second pattern layer(15b) is formed on the widthwise edge of each area of multiple areas. A first air flow passage is formed by the first pattern layer. A second air flow passage(17b) is formed by the second pattern layer The pattern layer comprises multiple unit patterns respectively with a polygonal shape regularly arranged. A storage unit accommodates liquid separated from the content stored in a vacuum pack by attracting force when vacuum packaging. A feeding part supplies the fluid resin. A pattern formation roller has multiple pattern grooves formed along the circumferential surface on which resin is formed. A pressure roller molds a pattern layer forming an air flow path protruded on a film. A first pattern groove corresponds to a first resin pattern formed in the widthwise center of each of multiple areas of a film. A second pattern groove corresponds to a second resin pattern formed in the widthwise edge of each of multiple areas of a film. The pattern grooves includes multiple unit pattern grooves regularly arranged with a polygonal shape.