| 摘要 |
PURPOSE:To simplify adhesion and combine with waterproofness of an adhered part, by making an resin film an inside face at the mouth of a paper bag etc. of which one side of paper is laminated with the resin film and adhering mouth by the ultrasonic wave or high frequency wave. CONSTITUTION:A resin film 2 is laminated to one face of paper and adhesion is performed between the resin film 2 laminated to the inner face of the paper by exerting the ultrasonic wave or the high frequency wave on the mouth 3 of the bag in adhering. Because the resin film 2 is laminated to the adhering face in such a way, adhesion is easy and at the same time the adhering method of the paper bag etc. combining with waterproofness of the adhered part can be obtained. |
