Patent ID: 6790269
Filing Date: 2004-09-14
Classification: C09D

Abstract:
An ink for use in an ink-jet recording comprising a dye and/or a pigment and water as the indispensable components and a water-insoluble solid content of 1% or more of the whole quantity, wherein:the ink further comprises a nonionic surfactant having polyethylene oxide groups and polypropylene oxide groups, which is a substance having the structure shown by the following structural formula 1; and a number x of the added polyethylene oxide groups and a number y of the added polypropylene oxide groups satisfy the relation that 0&lE;10, and the relation thatx/2âˆ’1/3+2, where q and r are respectively the numbers of the methylene groups, and satisfy the relation that9&lE;q+r&lE;11.