About the gravure printing with low yield analysis

Gravure in yield compared with other printing method has obvious shortcomings.The same as the method of the thin film printing, gravure printing machine loss of 6% ~ 7%, and the wastage of the satellite flexo machine is only 1% ~ 2%, difference of shocking.Even as the unit type rotary printing way, because of the paper path length, gravure press loss is much higher than flexo machine, only in a volume, although all need 2 ~ 3 a paper loss of the road, but as a result of gravure press paper clearly than flexo printing machine paper road, so the loss is much higher.That does not include as a result of gravure printing pressure is the largest of all kinds of printing way, therefore gravure press all kinds of groups in the mechanical loss is also the biggest in the history of synchronous speed, thus causing huge losses of gravure in misregister;At the same time, also does not include the gravure due to the effect of ink on the way knife wire (or the knife line) can only be a temporary solution but not eliminate the quality loss caused by forever.

Gravure inherent characteristics of fault is difficult to eliminate, in order to improve the yield, longyin printing group is best efforts, such as the printing width were relaxed and gravure press were over 1600 mm in width, in order to save wire loss, in order to improve the yield.Actually gravure press width is more wide, the substrate on both ends of the width on the alignment, the more difficult it is to control the printing alignment error is bigger.Enterprise practiced constantly updated equipment, strengthen training, but yield little to ascend.This in today's high raw material prices, for gravure enterprises operators, it is a difficult to overcome obstacles.

Gravure such quality problems associated with its inherent defect in printing process, but unfortunately, many peers still did not realize it, for there is such a big loss in the process of printing, often blamed on a line operator skill not jing, or the sense of responsibility is not strong.When making printing process, the management department can't refinement, can only hope that a gleam of gravure pilot field processing ability, and a line operators because of the limitations of knowledge level, at best, can only rely on past experience some incomplete.Thus formed the intaglio printing process control of the embarrassing situation at present: abandon leadership above, below.The yield of flexible packaging industry generally amounted to less than 90%, some even lower the yield of flexible packaging enterprises.Since the existence of intaglio printing quality problem has its inevitability, so thoroughly solve the problem can only learn from other processes, improved or modified intaglio printing process itself.Longyin group hopes to brainstorm, to solve the problem.