Before starting, don't forget to set good these composite film printing parameters

1, the drying temperature setting before start printing, should according to the types of substrates, printing speed, picture and text area, drying temperature of the ink layer thickness to adjust each unit. In the process of high speed printing, in order to make the ink solvents in rapid evaporation after printing, achieve the purpose of printing ink dry in time, drying temperature setting is important. Drying temperature has a great influence on the composite film quality, the high temperature will cause the film contraction deformation; Ink will dry low temperature thoroughly, cause the ink stick. Various substrates of heat-resistant difference is very big, the temperature Settings depending on the different materials, such as PVC film in the actual production, the drying temperature is commonly 40 ~ 55 ℃, while the OPP film can be dry under 60 ~ 75 ℃. 2, tension general gravure press four period of tension control unit type, respectively is: rolling tension, feed tension, drawing tension and winding tension. They control substrates in the process of feeding, printing, winding steady running, the greater the stability of the tension, substrates and components of the operation more stable, the precision of the tinted will be guaranteed. Composite membrane film tension control is more important than the paper of printing. The size of the tension adjustment, and according to the types of thin film to determine the tensile strength, such as the tensile strength of the CPP, PE is weak, the film easy to tensile deformation, therefore the tension corresponding to a little bit small, and strong tensile strength such as PVC, BOPP film, tension can be a bit bigger accordingly. In film type certain cases, the width and thickness of the film is to determine the important factors of tension size, wide film should be bigger than a narrow thin film tension, the tension of the thin film thickness of membrane. 3, embossing roller and plate cylinder pressure according to the substrate thickness set suitable pressure, the greater the average thickness, the greater the printing pressure is required. 4, the plate cylinder embossing roller diameter circle skillfully according to the printing plate cylinder of the single correct impression cylinder diameter circle skillfully, and immediately in the early stages of the rectifying screw alignment. 5, set the winding tension change curve in the printing process, winding tension is the winding decreases with the increasing of roll diameter, in order to achieve better quality of winding, the advanced package the winding tension curve of gravure press, but shall be set by the operator. Can generally be stored in the host several commonly used curve, convenient for production. 6, various balance roller position zero in all kinds of group balanced roller is for adjustment between board design is not parallel, under normal circumstances should keep balance roll parallel to the guide roller, prevent influence by not parallel pattern alignment.