Journal of the Korean Graphic Arts Communication Society (한국인쇄학회지)
- Volume 20 Issue 2
- /
- Pages.7-18
- /
- 2002
- /
- 1226-1149(pISSN)
Rheological Properties According to the Hardness of Dampening solution for Lithographic Ink
축임물의 경도에 따른 평판인쇄잉크의 유동성 변화
- Cho, Jin-Woo (Dept. of Graphic Arts Engineering, Graduate School of Pukyong National University) ;
- Kim, Sung-Bin (Division of Image & Information, College of Engineering, Pukyong National University) ;
- Park, Jeung-Min (Dept. of Graphic Arts Engineering, Graduate School of Pukyong National University)
- Published : 2002.10.01
Abstract
The emulsification of lithographic printing inks are very important to determine printing quality. In this study, we measured the variation of water pickup according to the hardness of water in dampening solution. In order to observe the rheorogical properties of the emulsified inks, we measured the viscosity, the elastic return, the thixotropy area and yield stress value of the emulsified inks. In this paper, we found that the water pickup of the ink increase the hardness of water with the amount of dampening solution. Also, The viscosity, the yield stress value and the thixotropy area were increase by the water pickup of the ink.
Keywords