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    • 9. 发明授权
    • Water-based ink
    • 水性油墨
    • US6011098A
    • 2000-01-04
    • US227407
    • 1994-04-14
    • Akio KashiwazakiYuko SugaAya Takaide
    • Akio KashiwazakiYuko SugaAya Takaide
    • C09D11/00C09D11/02C08K5/06
    • C09D11/326C09D11/037
    • A water-based ink containing a pigment, a dispersant for dispersing the pigment, a water-soluble organic solvent, and water. The dispersant used is at least one compound selected from (a) a copolymer having a hydrophilic part and a hydrophobic part, the hydrophilic part having at least one monomer containing a long-chain nonionic group selected from the following formulae (I) to (III), and .alpha., .beta.-ethylenic unsaturated carboxylic acid,CH.sub.2 .dbd.C(R)--COO--(CH.sub.2 CH.sub.2 O).sub.m H (I)CH.sub.2 .dbd.C(R)--COO--(CH.sub.2 CH.sub.2 O).sub.n --(CH.sub.2).sub.l H(II)CH.sub.2 .dbd.C(R)--COO--(CH.sub.2 CH.sub.2 O).sub.p -phenyl-(CH.sub.2).sub.q H (III)where R is H or CH.sub.3, m and n are each a numeral from 2 to 24, l is a numeral from 1 to 12, p is a numeral from 1 to 12, and q is a numeral from 1 to 16; and (b) polyethyleneimine. The ink may be used in an apparatus and according to the present ink jet recording method.
    • 含有颜料的水性油墨,分散颜料的分散剂,水溶性有机溶剂和水。 使用的分散剂是选自(a)具有亲水部分和疏水部分的共聚物中的至少一种化合物,所述亲水部分具有至少一种含有选自下式(I)至(III)中的长链非离子基团的单体 )和α,β-亚乙烯不饱和羧酸,CH2 = C(R)-COO-(CH2CH2O)mH(I)CH2 = C(R)-COO-(CH2CH2O)n-(CH2) = C(R)-COO-(CH 2 CH 2 O)对苯基 - (CH 2)q H(III)其中R为H或CH 3,m和n各自为2至24,l为1至12, p是1至12的数字,q是1至16的数字; 和(b)聚乙烯亚胺。 油墨可以用在装置中并且根据本发明的喷墨记录方法。