申请人:Konica Minolta Medical & Graphic, Inc.
公开号:EP1829937A1
公开(公告)日:2007-09-05
The present is an image forming method in which at least two types of actinic radiation curable ink-jet inks, which differ in hue, are ejected from an ink-jet recording head onto a recording medium, the image forming method is characterized in that the absolute value of difference ΔS(Slow - Shigh) is 5 - 1, 000 mPa·s, wherein Slow represents a viscosity of the aforesaid actinic radiation curable ink-jet ink measured with a share rate of 11.7 1/s at 25 °C, Shigh represents a viscosity measured with a share rate of 1,000 1/s at 25 °C, and ΔS(Slow - Shigh) represents a difference between the above viscosities. It is possible to realize an image forming method which results in excellent character quality, minimizes color mixing (bleeding), and enables stable recording of highly detailed images under targeted reproduction.
本发明是一种图像形成方法,在该方法中,至少两种色调不同的阳极辐射固化喷墨墨水从喷墨记录头喷射到记录介质上,该图像形成方法的特征在于,差值ΔS(Slow - Shigh)的绝对值为5 - 1,000 mPa-s,其中Slow表示上述阳极辐射固化喷墨墨水的粘度,在25 °C时以11.7 1/s,Shigh 表示在 25 °C 下以 1,000 1/s的分担率测量的粘度,ΔS(Slow - Shigh) 表示上述粘度之间的差值。这样就可以实现一种图像形成方法,它能带来出色的字符质量,最大限度地减少混色(渗色),并能在有针对性的复制下稳定地记录高精细图像。