著者
畑 幸徳
出版者
JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY
雑誌
紙パ技協誌 (ISSN:0022815X)
巻号頁・発行日
vol.14, no.2, pp.90-98, 1960-02-10 (Released:2009-11-17)

In order to establish the standard printability testing method, printing experiments were carried out conbined with orthogonal array which composed with 18 papermaking factors and 7 printing factors .48 samples, consist of finepaper, photo-gravure and newspaper, were made on the test fourdriniermachine.Some parts of each sample were tested physical properties, and the rest were printed by letterpress, lithography or rotogravure on a test rotary printing machine.Each printed sample was determined ink transfer number, printed opacity, and reflection index, specular gloss and uniformity of printed surface, and the results were analysed statistically in order to obtain the relation between printing results and papermaking factors, printing factors or physical properties of sheet.Some experiments were carried out to printing results.Smoothness of paper were tested by 4 types of tester, all the results indicated that smoothness highly correlated with printing results.Among the contributions of all factors on printing results, in the case of fine paper, printing factors are generally greater than others, but in the case of newspaper and photogravure, paper making factors are dominant.Generally speaking, printing factors have greater effect to the ink transfer number and reflection index of printed surface than paper making factors.For the printed opacity and specular gloss of printed surface, this relationship is reversal.Among paper making factors, smoothness is the greatest for any printing results, so that smoothness is the most important in the printability of paper.