| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging bag in which a surface of a content is hardly adhered to an inner face, and a production method thereof.SOLUTION: A packaging bag is formed by, molding a packaging body 1 comprising a base material sheet layer 10, and a hot melt layer 20 formed by transferring a hot melt material to the base material sheet layer 10 by gravure printing, into a bag shape in which the hot melt layer 20 is an inside. By transferring the hot melt material to the base material sheet layer 10 by gravure printing, when forming the hot melt layer 20, simultaneous to transfer, the hot melt layer 20 becomes an irregular shape. Therefore, the packaging body 1 formed by the above-mentioned method is molded into a bag shape in which the hot melt layer 20 is an inside, so that, a surface of a content stored in the packaging bag is hardly adhered to an inner face of the packaging bag.SELECTED DRAWING: Figure 1 |
