Patent ID: 7293646

Claim:
A plural-chamber container formed of a synthetic resin film and compartmentalized into a plurality of chambers by a peelable partition wall formed by thermally welding opposed parts of the films, characterized by comprising a means for indicating the peeling of the partition wall on the plural-chamber container, wherein said means for indicating the peeling of the partition wall is provided on outer surfaces of the partition wall forming portions of both of the opposed films, and includes: a sign indicating portion provided on the partition wall forming portion on one of the opposed films, a sign shielding portion provided on the partition wall forming portion on the other of the opposed films, a sign which is printed on the sign indicating portion, and a drawing which corresponds to the outline of the sign on the sign indicating portion and is printed on the sign shielding portion, and in that when said partition wall is formed, the sign indicating portion and the sign shielding portion are superimposed and hence a sign is not indicated, and when the partition wall is peeled, the sign indicating portion and the sign shielding portion come apart from each other so that the sign is indicated by the sign indicating portion and the drawing is indicated by the sign shieding portion.