| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink supply tube which is not only excellent in fire retardancy, but also free from melt deformation even in a high temperature and, moreover, which can intercept permeation of oxygen from outside and prevent deterioration of staying ink for a long time. SOLUTION: An ink supply tube 1 has a multilayer structure. An inner layer 2 with which ink comes into contact is constituted of polyolefin of which the elasticity modulus in bending is 8000kg/cm<2> or pelow. An intermediate layer 3 is constituted of oxygen barrier resin. An outer layer 4 is constituted of thermoplastic resin containing a fire retardant of 5-40wt.% or of fire-retardant resin having fire retardancy in itself. |
