Tail-Edge Picking, Back-Trap Mottle and Fountain Solution Interference of Model Latex Coatings on a Six-Color Press Predicted by Laboratory Tests, 1991 Coating Conference Proceedings
Important properties of coatings for six-color, sheet-fed offset performance include: (a) tail-edge picking resistance, (b) back-trap mottle resistance, and (c) fountain solution/ink receptivity. This study found that certain laboratory print tests could predict how a series of model latex coatings would perform on a six-color, sheet-fed press with respect to the properties mentioned above. In addition, by using this model latex series in which all variables were held constant except the styrene (S)/butadiene (B) ratio, it was possible to establish the effects of changing latex composition on press performance of the coatings. The details of the effects of latex composition change on press performance and laboratory print testing as well as the correlation between the laboratory and press results will be discussed in this paper.
Tail-Edge Picking, Back-Trap Mottle and Fountain Solution Interference of Model Latex Coatings on a