| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly reliable ink pack capable of preventing ink from leaking caused by eroding a seal member with an ink solvent in a cylindrical member (a spout) of the ink pack. SOLUTION: The ink pack includes an ink container for storing the ink, the cylindrical member fixed to the ink container and having an ink feeding hole, and a seal member inserted into the cylindrical member and intercepting the communication between the outer part and the inner part of the ink container. In this ink pack, the ink in the ink container is guided to the outer part through the ink feeding needle by inserting an ink feeding needle into the ink feeding hole through the seal member. The seal member is composed of a seal member body consisting of an elastic material and a covering layer consisting of a fluorine-containing elastomer and covering at least the surface of the inner end part side of the seal member body. COPYRIGHT: (C)2009,JPO&INPIT |
