Ink Transfer Problem on Cooled Papers and its Causes

냉각된 종이의 잉크수리성에 관한 연구

  • 전성재 (한솔제지 기술연구소) ;
  • 손창만 (한솔제지 기술연구소) ;
  • 홍기안 (한솔제지 기술연구소) ;
  • 윤종태 (부경대학교 인쇄화상공학과)
  • Published : 2006.11.02

Abstract

Paper could be situated in a cooled environment seasonally or regionally otherwise it is forced to be in a controlled circumstance. In this paper, printing problems on a cooled paper are investigated and characterized in terms of paper properties. For this purposes, various kinds of sample are cooled down under a specially designed freezing device and printed for observing their printability. Causes for poor ink transfer on a cooled paper are suggested due to condensation, surface inactivity, and rheological change in ink film. Paperboards with higher amount of binder, thick and/or multi coat layers are more vulnerable to poor ink trap. Severe drying could cause the same effect as that of higher binder formulation. It is shown that more absorptive porous structure is desirable for better ink receptivity in a cooled status. Printing on a dampened surface may be an indicator for ink transferability on a cooled paper. Finally, desirable directions for papermaker and printshop are suggested.

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