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    • 4. 发明公开
    • A water-based ink, ink jet recording method using same, and equipment using same
    • WässrigeTinte,Tintenstrahl-Aufzeichnungsverfahren und Vorrichtung unter Verwendung derselben。
    • EP0622429A2
    • 1994-11-02
    • EP94106082.4
    • 1994-04-19
    • CANON KABUSHIKI KAISHA
    • Kashiwazaki, Akio, c/o Canon Kabushiki KaishaSuga, Yuko, c/o Canon Kabushiki KaishaTakaide, Aya, c/o Canon Kabushiki Kaisha
    • C09D11/00B41J2/01
    • C09D11/326C09D11/037
    • 57 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 the groups (a) to (c): (a) a polymer having a hydrophilic part and a hydrophobic part, the polymer containing, as a monomer making up the hydrophilic part, 3 to 25 mol% of at least one monomer containing a long-chain nonionic group, which is selected from the following formulae (I) to (III), and 5 to 60 mol% of α,β- ethylenic unsaturated carboxylic acid,



      where R is H or CH 3 , m and n are each a numeral from 2 to 24, I is a numeral from 1 to 12, p is a numeral from 1 to 12, and q is a numeral from 1 to 16; (b) a polymer having a hydrophilic part and a hydrophobic part, the polymer containing, as a monomer making up the hydrophobic part, 5 to 70 mol% of at least one monomer selected from the following formulae (IV) and (V),


      where R 1 i H or CH 3 and R 2 is an alkyl group with 1 to 5 carbons; and (c) 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。 所使用的分散剂是至少一种选自(a) - (c)的化合物:(a)具有亲水部分和疏水部分的聚合物,该聚合物含有构成亲水部分的单体3-25 mol%的至少一种含有长链非离子基团的单体,其选自下式(I)至(III),和5至60mol%的α,β-烯属不饱和羧酸,CH 2 = C( (CH 2 CH 2 O)n - (CH 2)H(II)CH 2 = C(R)-COO - (CH 2 CH 2 O)p - 苯基 - (CH 2 CH 2 O) CH2)qH(III)其中R是H或CH3,m和n各自为2至24的数字,l为1至12的数,p为1至12的数,q为1的数 至16;(b)具有亲水部分和疏水部分的聚合物,所述聚合物含有作为构成疏水部分的单体的5-70摩尔%的至少一种选自下式(IV)和( V), 其中R1 i H或CH3和R2是具有1的烷基 至5个碳; 和(c)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。