申请人:Brother Kogyo Kabushiki Kaisha
公开号:US07216966B2
公开(公告)日:2007-05-15
A water base ink set for ink-jet recording includes a water base ink which contains an acid dye, and a water base ink which contains a basic dye. The water base ink contains a polymer which has an average molecular weight of 3,000 to 20,000 and which is represented by the following formula (1):
wherein X represents H or COONa, and Y represents H, COONa, SO3Na, or CH2OR in the formula (1). R represents a substituted group having SO3Na with carbon atom or atoms of a number of 1 to 5. When the ink containing the acid dye and the ink containing the basic dye are mixed with each other, then the head discharge section is prevented from any clog-up, and it is possible to perform the stable jetting operation.
一种用于喷墨记录的水性油墨套装,包括一种含有酸性染料的水性油墨和一种含有碱性染料的水性油墨。水性油墨包含一种聚合物,其平均分子量为3,000至20,000,由以下公式(1)表示:其中X代表H或COONa,Y代表H、COONa、SO3Na或CH2OR。在公式(1)中,R代表具有1到5个碳原子的带有SO3Na的取代基。当含有酸性染料的油墨和含有碱性染料的油墨混合在一起时,防止喷头堵塞,并且可以进行稳定的喷射操作。