PACKAGING BAG

• Main Authors: TAKECHI YOHEI, KUDO RURI
• Format: Patent
• Language: English; Japanese
• Published: 15.09.2016
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a packaging bag that has stable opening properties and a neat cut area and allows even a left-handed person to have the same usability, and is superior in re-opening property.SOLUTION: There is provided a packaging bag which is formed by sealing a peripheral edge with sealant layers of a top laminate and a reverse laminate opposed to each other, has re-sealing means at an opening part, and is provided with an easy-to-open means between the re-sealing means and a top seal part. The easy-to-open means consists of an easy-to-open processing part provided at outer edges of right and left side seal parts; a surface half-cut line "a" provided to the top laminate and having an upward convex shape; a top half-cut line "b" having a downward convex shape; a linear reverse half-cut line provided to the reverse laminate, the top half-cut line "a" and top half-cut line "b" being provided symmetrically about the reverse half-cut line along a vertical direction and also in contact with each other, and those two top half-cut lines each having a start point and an end point at one point on a side seal part.SELECTED DRAWING: Figure 1 【課題】安定した開封性を備え、切り口が綺麗であり、左右利き手の異なる人でも同じ使い勝手が得られ、しかも再開封性に優れた包装袋を提案するものである。【解決手段】表面積層体と裏面積層体の、シーラント層同士を対向させ、周縁をシールしてなり、開口部に再封止手段を有し、再封止手段とトップシール部の間に、易開封手段を設けてなる包装袋であって、該易開封手段は、左右サイドシール部外縁に設けた易開封加工部と、表面積層体に設けた上に凸の形状を有する表面ハーフカット線ａと、下に凸の形状を有する表面ハーフカット線ｂと、裏面積層体に設けた直線状の裏面ハーフカット線とからなり、表面ハーフカット線ａと表面ハーフカット線ｂは、裏面ハーフカット線を中心に上下対称に、かつ接触するように設けられ、これら２本の表面ハーフカット線は、いずれもサイドシール部上の１点を始点および終点とする。【選択図】図１