| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a standing pouch type packaging bag with a steam exhaust function for microwave oven heating which stably releases moisture in the bag and does not stain the periphery of the bag and the inside of a microwave oven in heating the bag in the oven. <P>SOLUTION: This standing pouch type packaging bag with a steam exhaust function is manufactured of a laminate film comprising a base material film and a sealant layer. A fin-like folding part is formed at the predetermined front face of one of two side faces forming a bag body roughly in parallel with an opening of a bag body in the bag width direction covering the bag width. A patterned heat seal part having a non-sealed part with an exhaust opening is formed continuously with both side end edge seal parts at the predetermined position of at least one side end edge of the bag body. Furthermore, an easy peel tape material or an easy peel layer is formed in a predetermined length between two inside faces of the side film forming the body of the bag in the width direction of the bag contacting with the opening and the folding part. <P>COPYRIGHT: (C)2007,JPO&INPIT |
