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    • 23. 发明授权
    • Recording liquid, recording cartridge, recording method, recording apparatus and recording medium
    • 记录液体,记录盒,记录方法,记录装置和记录介质
    • US06799845B2
    • 2004-10-05
    • US10005606
    • 2001-12-07
    • Tetsuya KanekoMasayuki KoyanoNobutaka OsadaHitoshi Arita
    • Tetsuya KanekoMasayuki KoyanoNobutaka OsadaHitoshi Arita
    • B41J201
    • C09D11/322C09D11/38
    • A recording liquid comprising a coloring agent and water, wherein the recording liquid containing a polyol (A) having a solubility in water at 20° C. of 0.2 wt. % or more and not more than 4.5 wt. %, and at least one compound (B) selected from a group consisting of compound represented by formula (1) R1,R2,R3.N→O (where R1 and R2 are an alkyl group or a hydroxyalkyl group having 1 to 3 carbon atoms, and R3 is an alkyl group or an alkenyl group having 10 to 20 carbon atoms), and of compound represented by formula (2) represented by R4,R5,R6.N—CH2—CO—O−(where R4 and R5 are an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms, and R6 is an alkyl group or alkyl group derived from cocoanut oil having 10 to 16 carbon atoms that may contain an amide group). The recording liquid shows synergistic effect including a high permeability with modified penetrating property capable of eliminating an increasing in optical density at backside-surface of printing medium, anti-color bleeding property, and an effect on reduction of blurring of colors, by combination use of the polyol (A) and compound (B). The polyol (A) has a small molecular weight so that the adsorbing speed onto the surface to be printed is very high, and has a property to render the nitrogen moiety of the compound (B) into positive charge. The compound (B) effectuates on compound (A) to make it to be insoluble.
    • 包含着色剂和水的记录液体,其中含有在20℃下在水中的溶解度为0.2重量%的多元醇(A)的记录液体。 %以上且不超过4.5重量% %和至少一种选自由式(1)表示的化合物组成的组中的化合物(B),R 1,R 2,R 3,N - (其中R 1和R 2是烷基或具有1至3个 碳原子,R 3为碳原子数为10〜20的烷基或链烯基),以及由R 4,R 5,R 6 .N-CH 2 -CO-O - (其中, R 4和R 5是具有1至3个碳原子的烷基或羟烷基,R 6是衍生自可含有酰胺基的具有10至16个碳原子的椰子油的烷基或烷基)。 记录液体具有协同效果,包括具有改进的穿透特性的高渗透性,能够消除打印介质背面的光密度增加,防着色渗色性,以及减少颜色模糊的效果,通过组合使用 多元醇(A)和化合物(B)。 多元醇(A)具有小的分子量,使得要印刷的表面上的吸附速度非常高,并且具有使化合物(B)的氮部分成为正电荷的性质。 化合物(B)对化合物(A)产生不溶解。