The present invention relates to an ink set capable of suppressing the occurrence of expansion and shrink in the print layer and stably printing a high-definition image. More specifically, it relates to an ink set comprising a water-based coloring ink and a water-based coating liquid having an acting of aggregating the water-based coloring ink, wherein a dynamic surface tension value at 25°C at a surface life of 100 ms of the water-based coating liquid is smaller than a dynamic surface tension value at 25°C at a surface life of 100 ms of the water-based coloring ink, a difference between the dynamic surface tension value at 25°C at a surface life of 100 ms of the water-based coating liquid and the dynamic surface tension value at 25°C at a surface life of 100 ms of the water-based coloring ink is 5 mN/m or more and 20 mN/m or less, and the dynamic surface tension value at 25°C at a surface life of 100 ms of the water-based coating liquid is within a range of 20 to 30 mN/m.
本发明涉及一种能够抑制印刷层膨胀和收缩并稳定印刷高清图像的油墨组。更具体地说,它涉及一种由
水性着色油墨和具有聚集
水性着色油墨作用的
水性涂布液组成的油墨组,其中
水性涂布液在表面寿命为 100 毫秒时的 25°C 动态表面张力值小于
水性着色油墨在表面寿命为 100 毫秒时的 25°C 动态表面张力值、
水基涂布液表面寿命为 100 毫秒时 25°C 的动态表面张力值与
水基着色墨
水表面寿命为 100 毫秒时 25°C 的动态表面张力值之差为 5 mN/m 或以上和 20 mN/m 或以下,且
水基涂布液表面寿命为 100 毫秒时 25°C 的动态表面张力值在 20 至 30 mN/m 的范围内。