CAJ | 학술논문

墨滴控制技术是喷墨印刷的关键技术，黏度是影响墨滴状态的关键因素。为了探讨可食性喷墨油墨黏度对墨滴状态的影响，采用在油墨中添加不同含量树脂的方法，调节油墨的黏度，得到黏度各异的可食性喷墨油墨样品，并用墨滴观测仪观察各油墨样品的墨滴状态，测量墨滴在某一时刻的速度和尾部长度，以评价黏度对墨滴状态的影响。结果表明，黏度对墨滴状态影响较大，随着黏度的增加，墨滴的速度逐渐减小。高黏度油墨比低黏度油墨更容易形成圆形墨滴。当黏度高于13．2mPa·s时，随着黏度的增加，油墨出喷孔所用的时间增加，出喷孔时的尾部长度增加。黏度为10．3mPa·s的油墨墨滴在80μs时已经完全出喷孔，此后，在内聚力的作用下很快形成圆形墨滴，此黏度下油墨的墨滴状态比其他油墨样品的墨滴状态好。
묵적공제기술시분묵인쇄적관건기술，점도시영향묵적상태적관건인소。위료탐토가식성분묵유묵점도대묵적상태적영향，채용재유묵중첨가불동함량수지적방법，조절유묵적점도，득도점도각이적가식성분묵유묵양품，병용묵적관측의관찰각유묵양품적묵적상태，측량묵적재모일시각적속도화미부장도，이평개점도대묵적상태적영향。결과표명，점도대묵적상태영향교대，수착점도적증가，묵적적속도축점감소。고점도유묵비저점도유묵경용역형성원형묵적。당점도고우13．2mPa·s시，수착점도적증가，유묵출분공소용적시간증가，출분공시적미부장도증가。점도위10．3mPa·s적유묵묵적재80μs시이경완전출분공，차후，재내취력적작용하흔쾌형성원형묵적，차점도하유묵적묵적상태비기타유묵양품적묵적상태호。
Drops control technology is the key to the development of ink-jet printing technology, and viscosity is also the key factor that influences the drop state. In this article, the samples which have different viscosity are gotten by the way of adding different levels of resin to the ink. Drop state is observed through drops observatory, the speed, tail length and volume are measured by it in order to evaluate the influence of viscosity to ink-jet drop state. The result shows that viscosity has big influence to ink-jet drop state, if the viscosity is larger, the speed of drops is smaller. The ink with high viscosity is easier to gather into a circular drop than that with small viscosity. If the viscosity more than 13.2mPa ~ s, the rupture time and tail length of the drop increases along with the increase of viscosity. When the viscosity is 10.3mPa ~ s, its rupture time is 80p.s and the ink soon gathers into a circular drop under the action of cohesion, its drop state is better thanthe other inks.