Ghosting Over the years, APR has shared many articles that assist in identifying and reaction to print defects such as dirty print, ink spitting, and ghosting. But as technology, equipment, and operating techniques develop, we find it necessary to revisit these areas of concern that continue to challenge many of us on a daily basis. … Read More...
Articles on Pressroom
Ask a person ordering anilox rolls what his or her greatest fear is, as it relates to anilox rolls, and the answer you're likely to get is "that the darned thing will get scored as soon as we put it in the press." It's a common refrain. Excluding accidental occurrences such as a blade hold-down … Read More...
Introduction This multi-part article will explore some of the more common but less controlled causes for replacing the photopolymer printing plate. Reasons for replacing an expensive photopolymer plates can vary greatly. In Part 1 of this series we focused on many advantages of deep plate cleaning with automatic plate washing systems, including how we extend … Read More...
Introduction There is certainly no shortage of articles written on how to store and handle photopolymer printing plates in order to maximize performance and extend life. We know that exposure to ultraviolet light and ozone damages the plate once it reaches production, but when it comes down to reasons for replacing an expensive photopolymer plate … Read More...
In outlining the process control parameters involved in optimizing the color gamut for flexo print reproduction, it was stated in Part 1 of this series that "the path forward involves the commitment to a stringent process control plan...from prepress and proofing, through plate making and on to print reproduction." In practice, however, the path for … Read More...
Mastering the doctor blade selection process, must start with understanding the many choices of doctor blades and their various uses. However, it is also important to recognize that what is available in doctor blades was developed for rotogravure...not flexo. When discussing with production managers as well as pressmen why they buy the blades they do, … Read More...