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    • 8. 发明公开
    • Ink, ink cartridge and ink jet recording method
    • TINTEN,TINTENPATRONE UND TINTENSTRAHLAUFZEICHNUNGSVERFAHREN
    • EP2650334A1
    • 2013-10-16
    • EP13001910.2
    • 2013-04-12
    • Canon Kabushiki Kaisha
    • Saito, TakashiOgasawara, MasashiIkegami, MasayukiIwata, TetsuTsujimura, Masashi
    • C09B47/26C09D11/00
    • C09D11/328B41J2/17503C09B47/26
    • The invention provides an ink containing a coloring material and a water-soluble organic solvent, wherein the coloring material is a compound represented by the following general formula (1), and the water-soluble organic solvent includes an alkanediol having 4 to 6 carbon atoms:

      wherein rings A, B, C and D each indicated by a broken line are, independently of one another, a benzene ring or a nitrogen-containing heteroaromatic ring, the number of the nitrogen-containing heteroaromatic ring is more than 0.0 and 3.0 or less, the remainder is the benzene ring, R 1 is an alkyl group, R 2 is an alkylene group, X is an anilino group having one or more sulfonic groups, m is more than 0.0 and less than 3.9, n is 0.1 or more and less than 4.0, and the sum of m and n is 1.0 or more and less than 4.0.
    • 本发明提供含有着色材料和水溶性有机溶剂的油墨,其中着色材料是由以下通式(1)表示的化合物,水溶性有机溶剂包括具有4-6个碳原子的链烷二醇 :其中由虚线表示的环A,B,C和D彼此独立地为苯环或含氮杂芳环,含氮杂芳环的数目大于0.0和3.0或 较少,其余为苯环,R 1为烷基,R 2为亚烷基,X为具有一个或多个磺酸基的苯胺基,m大于0.0且小于3.9,n为0.1以上 小于4.0,m与n的和为1.0以上且小于4.0。