Three Tips For Full Color Inner Frame For Cigarette Printing Machines

Three tips For Full Color Inner Frame For Cigarette printing machines

In the printing process of Full Color Inner Frame For packaging, registration is the primary condition to ensure the quality of printed matter. At present, most of our prints are multi-color printing, and many of them are three-color synthetic printing patterns. Registration directly determines whether the patterns and colors are correct. Therefore, the author introduces three tips to solve the printing press registration problem.

Familiar with all kinds of nesting principles

The nesting position of intaglio printing is achieved by changing the relative position of the material and the plate roller. The Cigarette of Full Color Inner Frame For printing has gradually developed from manual adjustment to automatic cigarette adjustment. From changing the position of the material to change the roller position. The precision of nesting is constantly improved, and the quality of printed matter is constantly improved.

Different types of nesting have different principles. When the longitudinal sleeve position is set, the swing roller sleeve position is the plate roller to maintain a stable position. The position of the swing roller is changed by adjusting the gauge motor, and the length of the material between the color groups is adjusted to move the position of the material to achieve registration. The setting of shaftless printing machine is to maintain the stable position of the material, and achieve the registration by adjusting the position of the plate roller by the servo motor. Lateral sleeve is the material to maintain a stable position, adjust the roller position to achieve registration. The positioner controls the edge position of the unwinding material. Because the printed material will undergo tensile deformation under the action of tension, which directly affects the registration accuracy, so the stability of the material size is the basis of overprinting. Different materials require different pretensile tension. Maintaining stable tension through a closed-loop tension control system allows the material to be relatively stable after pre-stretching.

Strengthen inspection of printed materials

Printed material good or not can produce certain influence to precise set of bits, and there are many factors that can influence the material, such as the material of partial meat (falbala), the tensile strength of the printed material version, version of the roll the identity, roller, in turn, increase control, version control, version of the concentricity of the roller installed correctly or not these are certain influence on the use of printed materials.

Therefore, we should strengthen the inspection of materials, especially for suspected partial meat (flounces) materials can take 5 meters of raw materials, 2 people pull it tight, check whether there is a slack phenomenon, if the slack is serious raw materials must not be used. At the same time, the plate roller must pass strict inspection before use, the diameter of a set of plate roller must be completely consistent, in order to overcome the influence of material stretch on registration, the diameter of plate roller increases in turn, the plate roller concentricity must be within the tolerance range. Before installing the plate roller must carefully clean the surface of the plug and the surface of the plate roller installation hole, to prevent the existence of garbage caused by the plate roller jump caused by the set of inaccurate.

Check equipment carefully before press

Before starting printing, the equipment must be carefully checked to ensure that the equipment is fault-free and the accuracy is guaranteed. To confirm that the socket device is in the correct working condition, the scanning head illumination should be sufficient to correctly identify the mark mark; The surface of the reflector plate is smooth and smooth without dirt; The distance between the reflection plate and the scanning head is correct, which can not touch the film, but also can produce enough reflected light.

To determine the appropriate air supply equipment, material does not produce jitter; Suitable drying temperature, not only to ensure the drying of ink, and do not make the film deformation; Regarding the relationship between air volume and temperature, on the premise of ensuring drying and no material jitter, increasing air volume is preferred. Tension control is also very important, not only to ensure that the material pulling, but also can not produce serious tension; The diameter and circumference of the roll must be carefully confirmed before input into the system to ensure the identity. The pressure of the roller must be suitable so that the film will not change position, and the film will not slide to meet the requirements of the sleeve position.