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    • 3. 发明公开
    • Ink compositions and printing methods for high readability on various types of substrates
    • 对不同的车辆类型的高可读性的油墨组合物和印刷工艺
    • EP1972667A1
    • 2008-09-24
    • EP08005501.5
    • 2008-03-25
    • PITNEY BOWES INC.
    • Auslander, Judith D.Bernard, Richard A.Chen, Mike Y.R.Higashiyama, ShunichiTaniguchi, AkihikoSago, HiromitsuNakamura, Atsushi
    • C09D11/00
    • C09D11/32
    • New blue inks are provided for inkjet printing, especially using piezoelectric printers, on papers which are typically difficult to print with good quality, high-contrast images. The inks are characterized by a color of the ink (color illumination D65) of L*: about 37±5, a*: about 7±7, b*: about -27±8. The inks contain an aqueous vehicle including water and a humectant comprising a polyhydric alcohol, a penetrant, surfactant, and a blue dye. The relative amounts of the aqueous vehicle, the penetrant, the surfactant and the blue dye, are effective to provide an ink having a viscosity and surface tension effective for inkjet printing, especially for piezoelectric printing, having a viscosity of from about 2 to about 4 mPa·s and a surface tension of from 30 to 50 mN/m. Also provided are a process for printing an image and a printed image prepared using the ink.
    • 提供了新的蓝墨水的喷墨印刷,尤其爱用压电打印机,在文件一般是很难以优良的品质,高对比度的图像进行打印。 约37±5,*::约7±7,b *的油墨由油墨(彩色照明D65)的L *的颜色特征的。大约-27±8 该油墨含有在wässrige车辆包括水和湿润剂包括多元醇,渗透剂,表面活性剂,和蓝色染料。 的wässrige车辆,渗透剂,表面活性剂和蓝色染料的相对量,可有效地提供一种具有粘度和表面张力有效地用于喷墨印刷用油墨,特别是爱用于压电打印,从约2至约4具有的粘度 毫帕·秒和从30到50mN / m时的表面张力。 所以本发明提供一种处理用于打印图像和使用该油墨制得的印刷图像。