Ink supply tube provided with gas barrier properties
AssigneeJunkosha Inc.
InventorMasato YOTSUYA
Life of this patent
Estimating the term…
Abstract
The present invention has an object to provide an ink supply tube having an excellent stress crack resistance during sliding while having a high gas barrier property. According to the present invention, an ink supply tube is provided, which includes an inner layer contacting with an ink, an intermediate layer containing at least one layer, and an outer layer, wherein the intermediate layer is a gas barrier layer formed of an ethylene-vinyl alcohol copolymer resin, and an oxygen concentration within a circular region that has a diameter of 100 □m and is centered at the gas barrier layer is 2 to 9 atm %.
Claims8
An ink supply tube having a gas barrier property, comprising an inner layer contacting with an ink, an intermediate layer and an outer layer, wherein the intermediate layer is a gas barrier layer formed of an ethylene-vinyl alcohol copolymer resin, and an oxygen concentration within a circular region that has a diameter of 100 μm and is centered at the gas barrier layer is 2 to 9 atm %.
Dependencies are inferred from the claim text.