Abstract: A capsule having a cap portion may be torn together with a pulling tab for tearing. The capsule comprises the cap portion and a skirt portion. Two weakening lines for tearing the cap portion are provided between the cap portion and the skirt portion. One of the weakening lines on the cap portion side is inclined to a top of the cap portion with a certain inclination as it approaches near the tear-terminating end. When pulling the pulling tab outwardly, the cap portion is torn along the weakening lines. Then, as it approaches near the tear-terminating end, the cap portion is torn upward toward the top, thereby opening the cap portion. Thus, the cap portion is removed from a cap of a bottle together with the pulling tab in one unit.

Abstract: There is provided a cover for a bottle neck or a capsule in which large and sharp burrs are not easily formed when the capsule is removed. The capsule comprises a cap portion, a skirt portion, and a tearable guarantee strip. Weakening lines are formed at a boundary between the tearable guarantee strip and the cap portion, and at a boundary between the tearable guarantee strip and the skirt portion. The weakening lines comprise linear compressed part and saw-tooth-like compressed parts. The saw-tooth-like compressed parts are formed so as to serrate from the linear compressed part into the tearable guarantee strip. The saw-tooth-like compressed parts may also be formed so as to serrate from the linear compressed part into the skirt portion. The weakening line may also be formed of a plurality of circular arc compressed parts each forming an arc extending into the tearable guarantee strip and each separated from its adjacent arc by a given distance.