Flexographic Printing Today
The invention of aniline printing in recent years has changed the face of prepress technology. These include preparations for printing images and printing tools, as well as improvements in the design of the press.
The more prominent changes in prepress technology are the following:
1. The introduction of different types of inks can be applied to hundreds of applications;
2. The ink control system can maintain the quality of the ink itself during the printing process;
3. The color separation system has become a reliable reserve in the image manufacturing process of computer hardware and software;
4. The photopolymerization printing plate is better than traditional rubber plate printing quality, durable, and not easily deformed, and can be fitted with a faster installation system. The rubber plate is almost completely replaced;
5. More and more popular metal ink rollers coated with ceramics and lasers; and newly developed computer-controlled plates and laser-printed thin plates.
Pneumatic squeegee blades The new concept air-hanging squeegee blade chamber enhances the control of ink flow and ensures that the squeegee blade can be automatically adjusted to a position that is balanced with the metallic ink roller to maintain the squeegee blade - ink roller - The average pressure of the blade, and simplify the installation process.
The on-board squeegee blade and metal ink roller cleaning system converters are very easy to clean, because they can effectively and quickly switch jobs, a trolley designed by SCHIAVI of Italy is equipped with a pneumatic pump, and three separate loads clean, Partially contaminated and dirty solvent discs, and depending on the scope of application, use water instead. The operator can sequentially place the solvent, clean the metallic ink roller and the doctor blade chamber.
Nitrile printing has become the heaviest printing method in soft printing, stencil printing, preprinting and label printing in addition to photogravure rotary printing under the improvement of prepress and press manufacturing.
SCHIAVI's flexographic printers offer customers a wide range of choices to meet their different technical and financial requirements. From a time-saving point of view, the SCHIAVI SIRIO line of 8-color C1 flex print presses is equipped with a number of automated devices and a fast-paced operation.
The on-line conversion sleeve system printing plate is mounted on the sleeve rather than using a single plate flow tube, so that the sleeve with the old version can be replaced with a new version of the sleeve without changing the sleeve of the printing machine Mandrel. Because the sleeve is very light, an operator can also change it quickly and easily.
Quick-Slide Processor Replacement of the traditional flow presses for plate cylinders and metallic ink rollers. When these cylinders are changed, they need to be replaced by two operators, using double play. However, only one operator is required at present, and the nicknamed 'Hercules' can be used to cope with the surplus. "Hercules" can lift the drum and put it in a new drum for new work.
The computer assists in the placement of the printing cylinders to record the relevant information in the work program. When necessary, the data can be taken out at any time.
The print pressure gauge quick register system makes comparisons based on pre-set values, measures pressure errors that occur during printing, and can perform corrective actions to prevent impact on print quality.
In the operation of today's flexographic printers, 40 to 60% of the time, there is no production, such as replacement work, including the time to install the printing plate, cleaning the metal ink roller and the doctor blade, and so on. Under such circumstances, the machine is not a high output value and it is a waste for the printing company. Therefore, it is very important to save the operating time during the operation.
To achieve this goal, in the machines used in the soft printing industry, more than 90% of C1 flexographic printers have added a number of new functions:
1. Mechanization of printing tables. In the past, these tasks were to be controlled by human hands. Now the machine can do it, and it can speed up 30 to 40 seconds.
2. The new system can automatically adjust the plate cylinder to the correct printing position;
3. The system of pre-set cartridges can prepare all colors at the beginning of printing;
4. Mechanization of printing pressure to reduce wasted time when starting printing.
A variety of systems have been developed for flexographic printers to save conversion time, and flexibility is a major feature. The design of these systems can provide a variety of different uses depending on the advanced level of the machine and the product market as well as the production needs.