NEWSPRINT PAPER FOR OFFSET PRINTING, WHICH HAS LESS PAPER BREAK ON PRINTING AND METHOD FOR PREDICTING THE PAPER BREAK

摘要

PROBLEM TO BE SOLVED: To provide a newsprint paper for offset printing, which does not generates paper break on offset printing, is excellent in traveling property and printing workability, and a method for predicting the extent of the occurrence of the paper break in the offset printing paper.;SOLUTION: This newsprint paper for offset printing is obtained, which has a tensile energy absorption in longitudinal direction of the paper of 15.0 to 20.0 J/m² and the ratio of the tensile energy absorption in longitudinal direction to tensile energy absorption in the transverse direction is 1.0 to 1.3 is obtained by adjusting a jet wire ratio on stock papermaking so as to 0.98 to 1.04, By testing the ratio of the tensile energy absorption in the longitudinal direction to the tensile energy absorption in the transverse direction in advance, the occurrence of the paper break in an offset rotary press is predicted.;COPYRIGHT: (C)2007,JPO&INPIT