| 摘要 |
PROBLEM TO BE SOLVED: To prevent ink from scattering when a sealing material is separated. SOLUTION: In the case of separating a sealing material with its end part held, starting at the first sealing face 10b and the second sealing face 10c of an adapter 10 of an ink cartridge, peeling load F slowly decreases at a sharp front part 10a, the last position for separation, as separation comes close to the front point PE. The peeling load F decreases at the rate of 0.02 kgf/mm or below. Therefore, movement of hand of a man separating the sealing material can follow slow decrease of adhesion. Accordingly, the sealing material does not rebound at the moment when the sealing material is separated with the end of the held sealing material returned sufficiently, and ink stuck to the sealing material can be prevented from scattering and staining the surroundings. |
