한국인쇄학회지 (Journal of the Korean Graphic Arts Communication Society)
- 제21권2호
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- Pages.75-87
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- 2003
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- 1226-1149(pISSN)
안료입자크기에 따른 잉크의 레올로지 성질의 변화
Rheological properties According to the Pigment Particle size of Ink
- Park, Jeung-Min (Kwang Myung Ink MFG. Co. Ltd) ;
- Kim, Sung-Bin (Division of Image & Information, College of Engineering, Pukyong National University) ;
- Kim, Jong-Won (Dept. of Image Printing, Incheon City College)
- 발행 : 2003.07.01
초록
Printing inks are mainly composed of pigment and vehicles. Among these components, the Vehicle affect the rheologic property of the ink the most but pigment content of characteristic also after to the fluidity property not less than the vehicle. In the study, It is tested effect to the ink fluidity and structure recovery according to change the pigment particle size. The ink fluidity have been observed by using rheometer at the various conditions and it has been tested to observe what the ink fluidity has different means. In result We have found that the viscosity value of the low shear rate range has relatively higher value with decreasing the pigment particle size in the ink. Also, it has been found that when the pigment particle size decreases, the yield stress gradually increase. In the case of ink's structure recovery, when the pigment particle size decreases in the ink, the less changing shear rate, and it takes less time to recover.
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