Ink compositions for ink jet textile printing
AssigneeSeiko Epson Corporation
InventorMakoto Taniguchi
Life of this patent
Estimating the term…
Abstract
An ink composition comprising at least a reactive dye, a surfactant, water, and at least one compound represented by formula (I), the composition having a viscosity of not more than 8.0 m.Pa.s (20° C.), is printed on a woven fabric by means of a piezoelectric type ink jet recording head: wherein EP1, EP2, and EP3 each independently represent an ethyleneoxy or propyleneoxy group; and 1+m+n is a natural number of not less than 1.
Claims27
An ink composition for ink jet textile printing, comprising a reactive dye, a surfactant, water, at least one member selected from the group consisting of urea, thiourea, alkyl-substituted urea, and alkylthioureas, and at least one compound represented by formula (I), said ink composition having a viscosity of not more than 8.0 m.Pa.s (20° C.):
- wherein
- EP1, EP2, and EP3 each independently represent an ethyleneoxy or propyleneoxy group;
- and
- l, m, and n, independently represent 0 or a natural number of not less than 1, provided that at least one of l, m, and n represent 1 or more and the average of 1+m+n in the whole compound represented by formula (I) contained in the ink composition is 1 to 30.
An ink composition for ink jet textile printing, comprising a monochlorotriazinyl derivative dye, an organic solvent having a boiling point of 150° C. or above at atmospheric pressure, a nonionic surfactant, and water, said ink composition having a pH value of 5.5 to 9.0 and a viscosity of not more than 8.0 m.Pa.s (20° C.) and further comprising both urea and dicyandiamide.
An ink jet textile printing method comprising the steps of:
- ejecting ink droplets of an ink composition;
- and depositing the ink droplets onto a woven fabric including a cellulosic fiber,
- said ink composition comprising a monochlorotriazinyl derivative dye, an organic solvent having a boiling point of 150° C. or above at atmospheric pressure, a nonionic surfactant, and water, said ink composition having a pH value of 5.5 to 9.0 and a viscosity of not more than 8.0 m.Pa.s (20° C.),
- said woven fabric having been previously coated with a pretreatment agent comprising a sizing agent, an alkalifying agent, a quaternary ammonium salt or a quaternary amine salt, and a hydrotrope, wherein both urea and dicyandiamide are contained as the hydrotrope contained in the ink composition and/or the pretreatment agent.
An ink jet textile printing method comprising the steps of:
- ejecting ink droplets of an ink composition;
- and depositing the ink droplets onto a woven fabric,
- said ink composition comprising a monochlorotriazinyl derivative dye, an organic solvent having a boiling point of 150° C. or above at atmospheric pressure, a nonionic surfactant, and water, said ink composition having a pH value of 5.5 to 9.0 and a viscosity of not more than 8.0 m.Pa.s (20° C.),
- said ink droplets being ejected by means of an ink jet recording head using a piezoelectric actuator and having a nozzle plate which has an ink-repellent layer provided its surface.
Dependencies are inferred from the claim text.