<p>For sealing a container (2) consisting of a barrel portion (3) and a cap portion (4) threaded and tightened on the barrel portion, the sealing label (1) includes a lower portion (1A) for substantially wrapping the barrel portion and an upper portion (1B) for substantially wrapping the cap portion. The sealing label includes horizontal perforations (10) consisting of cut segments (11) and uncut segments (12; 13) extending along a border between the upper portion and the lower portion; a knob portion (1a) disposed at an edge of the upper portion; and inclined perforations (20) consisting of cut segments (21) and uncut segments (22) extending obliquely in the upper portion from the knob portion to the horizontal perforations. <IMAGE></p>