Details:
Summary:
In a previous paper, a quantitative expression of wrinkles, which developed in multi-slot hot-air driers, has been introduced. Using the index, effects of fast drying conditions on wrinkle development were studies. In this report quantitative expression of time effects on wrinkle of stored paper as half-life period have been given. To know printing conditions on wrinkle development, effects of printing area and dot percent on wrinkle were studied on various printing area and combinations of dot percent of prints: on wrinkle index was just proportional to printing length, and dot percent effects would be explained by dispersed-continuous phase concept. Other factors such as hot-air slot width and partial pressure of water vapor in drying hot air were mentioned. Significant results of these two reports were summarized at the end of the paper.