Journal of Korea Technical Association of The Pulp and Paper Industry (펄프종이기술)

Korea Technical Association of the Pulp and Paper Industry (한국펄프종이공학회)
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Effect of Printing Conditions on Fluting in Heatset Web Offset Printing

Heatset 윤전 오프셋 인쇄에서 인쇄주름에 대한 인쇄조건의 영향

  • Jeon, Sung-Jai (R&D Center, Hansol Paper Co.) ;
  • Youn, Jong-Tae (Div. of Image & Information, College of Engineering, Pukyong National University)
  • 전성재 (한솔제지 기술연구소) ;
  • 윤종태 (부경대학교 공과대학 화상정보공학부)
  • Published : 2009.03.31
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Abstract

A printing defect known as fluting (or waviness) of the web printed by heatset web offset printing process is one of the chronically serious problems deteriorating print quality. In this paper, fluting occurrence on uncoated papers was explored in terms of many printing conditions including drying temperature, fountain solution amount, ink supply, and press configurations. For this purpose, fluting on prints from real press runs was appraised in a quantitative manner. As results, ink supply was a distinctive factor for fluting such that the lower ink amount, the milder fluting. However increase in fountain solution seemed to make fluting severer while the effect of drying temperature was inconsistent for each paper. This result might indicate variable drying requirements for each paper. Thereby it was suggested that the optimum drying conditions related to the printabilities of each paper need to be established to minimize fluting potential. A press with short dryer and drastic cooling unit produced higher fluting. Suggestions for future work were given along with interpretation for the results.

Keywords

References

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