| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink supply tube that entirely has flexibility and has a high durability against repeated bending, has a high barrier property, and does not alter ink even in the case of reuse after retaining ink in a state that the ink resides in the tube for a long time, and to provide also its manufacturing method. SOLUTION: An ink supply tube 1 is of a multilayer constitution. In an inner layer 3 in contact with ink and an outer layer 2 in contact with external air, a blend is arranged, which is mainly composed of 60-95wt.% polyolefin and 40-5wt.% of modified polyolefin, having 800MPa or less of modulus of bending elasticity at normal temperature and 1000MPa or less of that at 0 deg.C. In an intermediate layer 5, ethylene-vinyl acetate copolymer saponified matter is arranged, in which ethylene content is 25-50mol%, and saponification degree is 96% or more. |
