申请人:Konica Minolta, Inc.
公开号:EP2835265A1
公开(公告)日:2015-02-11
An inkjet recording method comprising: a step for shooting onto a recording medium an active-light-ray-curable inkjet ink that includes a photo - polymerizable compound, a wax, a photopolymerization initiator, and a coloring material, and that undergoes sol-gel phase transition in a reversible manner in accordance with temperature; and a step for curing the ink by irradiating an active light ray onto the ink that has been shot onto the recording medium, wherein the image-forming method further comprises including a (meta) acrylate compound (B) having a molecular weight of 300-1500 and a ClogP value within the range 4.0 to 7.0, the wax content being 1.0-10 percent by mass of the total mass of the ink, and the temperature of the recording medium at active light ray irradiation being set such that the saturation solubility of the wax with respect to the ink constitutes 0.5 percent by mass or less. According to this image-forming method, blooming is suppressed in a wax-containing inkjet ink that can be cured with active rays.
一种喷墨记录方法,包括将主动光射线固化喷墨墨水射到记录介质上的步骤,该墨水包括光聚合化合物、蜡、光聚合引发剂和着色材料,并根据温度以可逆方式发生溶胶-凝胶相变;以及通过将有源光射线照射到已射到记录介质上的墨水上以固化墨水的步骤,其中,图像形成方法进一步包括包括(元)丙烯酸酯化合物(B),其分子量为 300-1500 且 ClogP 值在 4.0至7.0,蜡含量为油墨总质量的1.0-10%(按质量计),记录介质在主动光射线照射下的温度设定为蜡相对于油墨的饱和溶解度为0.5%(按质量计)或更低。根据这种图像形成方法,含蜡喷墨墨水中的开花现象得到了抑制,这种墨水可以用主动光线固化。