| 摘要 |
PROBLEM TO BE SOLVED: To produce a liquid storing container capable of supplying a liquid while utilizing a stable negative pressure as an essential component of a liquid supplying system. SOLUTION: An ink tank 100 comprises an outer wall 101 having an air intake opening 105, an inner wall 102 having an outer surface with the substantially same shape as that of the inner surface of the outer wall 101, capable of storing a liquid in the inside, and an ink supplying part 103 capable of supplying the liquid to the outside. For producing the ink tank 100, first, a mold corresponding to the outline of the ink tank 100, and substantially cylindrical first and second parisons for the outer wall with a diameter smaller than that of the mold, are prepared. Then, the first and second parisons are expanded by injecting the air into the inside so as to fit the mold. The outer wall 101 and the inner wall 102 are formed such that the area formed by the inner wall 102 and the area formed by the outer wall 101 can be similar figures separable with each other. |
