| 摘要 |
PROBLEM TO BE SOLVED: To prevent ink from adhering to the periphery of an ink supply needle or the surface of an elastic sealing material and spreading to the outside when the ink supply needle is drawn out. SOLUTION: An elastic sealing material 6 to be fitted in the ink supply hole 5a made in a tubular member 5 bonded to an ink bag comprises first and second members 6A, 6B and an ink supply needle 8 is stuck through the first and second members 6A, 6B in order to introduce the ink in the ink bag to the outside through the ink supply needle 8. The first and second members are made of a rubber material impermeable to ink having an elastic recovery power for enclosing the inserting part of ink supply needle after it is drawn out. Ink adhering to the periphery of the ink supply needle when it is drawn out from the second member 6B is wiped off by the first member and stored in the space 6C between both members 6A, 6B. Ink adhering to the surface of the second member 6B from the periphery of the ink supply needle is also stored. Since both members 6A, 6B are impermeable to ink, the ink does not spread to the outside. |
