| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink holder used for the ink cartridge of an inkjet printer and difficult to be twisted by friction resistance with the inner surface of an ink storage container or not to be stored in the ink storage container when stored in the ink storage container.SOLUTION: An ink holder 10 inserted to be stored in an ink storage container is constructed in such a manner that unwoven fabrics are stacked and bonded as a friction reduction sheet 13 to both surfaces of compressed urethane foam 11 obtained by thermally compressing soft polyurethane foam and, when the ink holder 10 is inserted into an ink storage container 21, the surface of the unwoven fabric as the friction reduction sheet 13 comes into contact with the inner surface 22 of the ink storage container 21 to be rubbed. |
