CRITICAL ANALYSIS OF PRESS MAKE-READY TIME IN MULTI COLOUR SHEET FED OFFSET PRESSES AND POSSIBLE REDUCTION OF PRESS SET-UP TIME THROUGH INTRODUCTION OF DIFFERENT TECHNOLOGY IN VARIOUS UNITS OF THESE PRESSES
Shammi Mehra1 & Anjan Kumar Baral Ph.D 2
- Research Scholar, Department of Printing Technology, Guru Jambheshwar University of Science & Technology, Hisar
- Professor, Department of Printing Technology, Guru Jambheshwar University of Science & Technology, Hisar
Sheet fed offset printing is a mature form of printing and is widely used all over the world due its high level of print quality, successfully being able to print on a wide range of printing substrates and high speed of operation. In the recent years, multi colour sheet fed offset presses are being manufactured to reduce press set-up time, so that a greater number of jobs, especially short run length jobs can be printed effectively withing the press hours. Technology has certainly played a major role in terms of increasing press speed, minimizing the press set-up time, reducing raw material wastage, minimizing human touch during the press operation, possible reduction of wastage and maximizing profit. In this research work, the makeready time of the multi colour sheet fed offset presses with different levels of press automation is analysed and in the second step is aimed at to find out the possible impact of different technology on press set-up time of these presses.
Keywords: Lithography, Sheet fed offset, Makeready, Technology, Infeed Unit, Printing Unit, inking unit, Dampening unit, Delivery unit, Press set-up time.