PURPOSE: To provide a packing unit that is relatively tough, easy to handle and possible to be automatically filled up by covering a support member and an inner bag member with another liquid sealing outer bag member except for a pouring spout. CONSTITUTION: A packing unit 1 consists of inner and outer bag members 2 and 4. Disposed between these bag members liquid-sealed except for the pouring spout is a support member 3, which can be erected in the using state inside the outer bag member, and modification processing such as fold lines 7a, 7b, rimples or the like is applied on the support member to keep it in shape when erected. The outer bag member can make the support member erect simply and automatically by lightly pushing two outer fold lines 7a to let them mutually come closer for closely sticking and covering the support member. The outer bag member projects beyond two edge parts 14 neighboring top and bottom end walls 9 and 10 of the side part 8 by a half of separation existent against the side part. In consequence, a cover or base plate is formed. The pouring spout 5 is also protected by the support member 3 during filling process.
展开▼
