CAJ | 학술논문

为了有效预测和控制透印,提出采用抗透印值PTR来预测胶印品的透印性。以3种胶版纸和2种新闻纸为纸样,先测试它们的不透明度、油墨吸收性等性能,然后,在3组印刷条件下,利用IGT适性仪打印实地色块,并测量样条色块区与非色块区背面的色度值,考察了5种纸样的抗透印值PTR与印样透印量（用色差△E＊ab表示）之间的关系。研究结果表明,适当降低印刷压力并提高印刷速度可降低印样的透印量；在相同印刷条件下,青墨印样的透印量略大于品红墨印样的透印量。另外,当待印纸样的抗透印值PTR增大时,印刷后纸样印区的透印量就会减小,特别是当测试纸样PTR值＆gt;72%时,无论在何种印刷条件下,其胶印透印量均小于6,可在视觉上认定没有产生透印现象。
위료유효예측화공제투인,제출채용항투인치PTR래예측효인품적투인성。이3충효판지화2충신문지위지양,선측시타문적불투명도、유묵흡수성등성능,연후,재3조인쇄조건하,이용IGT괄성의타인실지색괴,병측량양조색괴구여비색괴구배면적색도치,고찰료5충지양적항투인치PTR여인양투인량（용색차△E＊ab표시）지간적관계。연구결과표명,괄당강저인쇄압력병제고인쇄속도가강저인양적투인량；재상동인쇄조건하,청묵인양적투인량략대우품홍묵인양적투인량。령외,당대인지양적항투인치PTR증대시,인쇄후지양인구적투인량취회감소,특별시당측시지양PTR치＆gt;72%시,무론재하충인쇄조건하,기효인투인량균소우6,가재시각상인정몰유산생투인현상。
In order to predict and control the print-through phenomenon, the value of print-through resistance （ PTR for short） was put forward to predict the print - through of lithograph. The opacities and ink absorptions of 5 given paper samples including 3 offset papers and 2 newsprints were tested, and then some solid color areas were printed on the paper samples with IGT printability tester under three sets of printing condition. Finally,the chromatic values of the negative side of color area and non-color area were measured, and the relationships between their PTR value and the print-through value （ calculated with △E＊ab ） was investigated. The results showed that lower printing press and higher printing speed were helpful to reduce the print-through phenomena. And on the same printing conditions, the print-through value of cyan ink print was slightly larger than that of magenta ink print. In＆amp;nbsp;addition, the increasing of PTR value could lead to the decreasing of the print-through value on the paper prints. In particular, no matter what kind of printing conditions, the print-through values were always little than 6NBS when the PTR values of those paper samples were larger than 72%, which seems to be the absence of print-through phenomenon on the vision.