원문정보
초록
영어
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 or characteristic also affect to the fluidity property not less than the vehicle. In the study, with the same vehicle on each sample, by making the sample to increase pigment content gradually. It can be examined the influence of the pigment to the fluidity of ink. In result we found that the viscosity value of the low shear rate rang has relatively higher value with increasing the pigment content in the ink. According to higher pigment content, yield stress and thixotropy index increases gradually. Structure recovery of the ink is that, the higher pigment content's ink, the less changing shear rate, and it takes less time to recover.
목차
1. 서론
2. 실험
2-1. 시료
2-2. 잉크의 유동성 측정
3. 결과 및 고찰
3-1. Viscosity Profile Curve
3-2. 안료 함량에 따른 yield value 측정 결과
3-3. 안료 함량에 따른 thixotropy index 측정 결과
3-4. Step Change Test
4. 결론
참고문헌