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    • 6. 发明授权
    • Aqueous ink jet inks containing polyol/alkylene oxide condensates as
cosolvents
    • 含有多元醇/氧化烯缩合物的水性喷墨油墨作为助溶剂
    • US5180425A
    • 1993-01-19
    • US788141
    • 1991-11-05
    • Howard MatrickMichele E. ShepardYoung S. You
    • Howard MatrickMichele E. ShepardYoung S. You
    • B41J2/01B41M5/00C09D11/00
    • C09D11/30
    • An ink for ink jet printers which comprises an aqueous carrier medium, pigment dispersion or dye and a polyol/alkylene oxide condensate cosolvent which eliminates film formation on thermal ink jet resistor surfaces thereby eliminating non-uniformity in optical density. The cosolvent present at least 5% has a solubility in water of at least 4.5 parts in 100 parts of water at 25.degree. C. and a general formula: ##STR1## wherein X=--H or --CH.sub.3 ;R=--H, --CH.sub.3, --C.sub.2 H.sub.5, --C.sub.3 H.sub.7, --C.sub.4 H.sub.9, or --CH.sub.2 O(CH.sub.2 CH.sub.2 O).sub.e H;b=0 or 1,a+d+f(c+e)=2-100; andf=1-6, the cosolvent being present in the amount of at least 4.5% based on the total weight of the ink jet ink composition. These inks exhibit freedom from thermal resistor film formation, have excellent decap performance, are storage stable and give images having excellent print quality.
    • 一种用于喷墨打印机的油墨,其包含水性载体介质,颜料分散体或染料和多元醇/环氧烷缩合物共溶剂,其消除热喷墨电阻表面上的成膜,从而消除光密度的不均匀性。 存在至少5%的共溶剂在25℃下在100份水中的溶解度至少为4.5份,通式为:其中X = -H或-CH 3; R = -H,-CH 3,-C 2 H 5,-C 3 H 7,-C 4 H 9或-CH 2 O(CH 2 CH 2 O)e H; b = 0或1,a + d + f(c + e)= 2-100; 和f = 1-6,共溶剂以基于喷墨油墨组合物的总重量的至少4.5%的量存在。 这些油墨表现出不受热电阻膜形成的影响,具有优异的脱色性能,储存稳定性,并给出具有优异印刷质量的图像。