| 摘要 |
Packing containers and packing container blanks of the type used for the packaging of e.g. milk and juice often are of the so-called gable-top type, the top closure also serving as an opening arrangement with a pouring spout which can be folded out. The parts (9, 10) forming the pouring spout (14) may be coated partly with a seal-preventing substance so as to make it possible for the pouring spout to be detached and let out in spite of the heat-sealing of the top. The seal-preventing coating (15) in accordance with the invention is covered by a film (16) which extends along the upper edge region of the packing container (1), which provides a better defined sealing strength, a tighter top seal, and protects the said coating (15) both before and after the conversion of the packing container blank (2) to packing containers (1) |
