| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink bag or an ink cartridge for an inkjet apparatus which is excellent in suitability with an ink comprising an alcohol, an oil, a pigment and the like and in ink delivering properties and can decrease the remaining liquid of the ink as it has flexibility. SOLUTION: In the ink bag for the inkjet apparatus or the ink cartridge for the inkjet apparatus in which a heat seal layer of a resin film constitutes an inner wall face, both heat seal layers are characterized in that a propylene copolymer comprising propylene and ethylene and/or a 4-8Cα-olefine is incorporated as a main component, and in that the ratio of an eluting part at 0°C in a temperature elevating eluting fractionation method (temperature: 0-140°C, solvent: o-dichlorobenzene) of the propylene copolymer component against the total amount of elute is 0-50 mass%, and the ratio of an eluting part at 60-90°C against the total amount of elute is equal to or more than 5 mass% and less than 70 mass%. COPYRIGHT: (C)2008,JPO&INPIT |
