The most popular way to select the appropriate pri

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Select the appropriate printing method to optimize the printing process

different printing methods need to be selected for the printed matter with different requirements. The following are the four most common printing methods when the technology can not complete the breakthrough change: single side; Self turning; Big rollover; Buckle plate. Each of the four methods has its own advantages and can be selected flexibly according to the actual situation

single side is applicable to those printed materials that only need to be printed on one side (most of them are on the front). Its characteristics are: one set of printing plates, one side printing, one bite, such as posters, self-adhesive, etc

self turning is applicable to those small face prints that need to be printed on the front and back. It is used to evaluate the ability of bundles of cables to inhibit flame spread under specified conditions. It is characterized by a set of printing plates, two-sided printing, and one bite, such as dmsheets, small posters, greeting cards, magazines, books, etc

big tumbling is also called tumbling (commonly known as donkey tumbling). It is a form of self tumbling. Its characteristics are: a set of printing plates, double-sided printing, two bites, such as hanging flags, magazines, books and periodicals, etc

plate snapping is restricted by various factors such as the size of the printing machine, paper, cost, post process, etc. Some double-sided printing products need to be combined for plate snapping printing, which is characterized by two sets of plates, double-sided printing and one bite, such as picture books, magazines, books, etc

printing and patchwork should never be underestimated. Making up is the process of putting together a single document that has been completed into a printing layout suitable for use on the computer. This is the most critical printing process for transforming design documents into film distribution documents (or CTPs). The proper way of making up can optimize the technological process, save the cost and reduce the labor intensity of workers. On the contrary, you will get half the result with half the effort

in the process of printing, we should also pay attention to the relationship between the printing pressure and the printing plate: the greater the pressure, the greater the friction. If the printing plate is subject to too much friction, the printing resistance of the printing plate will decline. The high printing pressure can be said to be the primary reason for the decline in the printing resistance of the printing plate. Therefore, there are two principles in offset lithography, one of which is to use as little printing pressure as possible on the premise of ensuring normal image transfer. Another small is to adjust the fountain solution to minimize the amount of liquid supply to compete with the ink on the printing plate

at the same time, pay attention to the relationship between printing pressure and machine maintenance: the operation of offset press depends on two important components, bearing and gear. Excessive printing pressure will increase their load and cause accelerated wear. During the printing process, the transmission ratio between the three rollers is required to be equal at any moment and driven at the same angular speed, so as to ensure that the fatigue life is a function of stress change, sample geometry and experimental conditions. The accuracy and correct meshing of the roller gear will be ensured. After the roller gear is worn, when driving from one tooth to the next, impact and noise will be generated, which will be reflected on the printed matter, and there will be vibration marks and local friction, as well as bars Point deformation, ghosting, etc

the manual of each printing machine is equipped with a detailed maintenance introduction. A clear daily, weekly, monthly, quarterly and annual maintenance plan should be formulated and strictly implemented to ensure the normal operation of the equipment and improve production efficiency. Many printing enterprises give up the maintenance of equipment for the sake of temporary interests because there are many active sources, which will cause fatal damage to the machine, and the gains outweigh the losses

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