Talking about combined printing
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Combination printing refers to the combination of two or more different printing methods, online printing of different printing and even post-press processing, that is, one-time paper (or plastic film and other printing materials) to complete a number of printing processes and Printing method for postpress processing.
The previous combination printing mainly refers to the process of adding glazing, marking, slitting, folding, etc. on the printing machine, which is not in the same form and complexity as the combination printing that appears today. The combination printing now referred to mainly refers to the combination of different printing methods, mainly for the convenience of production and processing, cost saving, efficiency improvement, or in order to meet the requirements of anti-counterfeiting and improve the quality of printed matter, such as for processing certain commodities. Packaging, lottery, etc. use a combination of a variety of printing methods and post-press processing. This type of printing has taken up a significant proportion of current printing applications.
Advantages of combined printing
In the past, if a printing method was used to complete a printing product, it usually had to be processed on different single machines. It took a lot of time and the printing loss rate was high. At the same time, different single machines also occupied a large space, and more used. Operators spend a lot of equipment investment. If combined printing is realized, the processing of each process of a product is completed at the same time.
1. High production efficiency
It takes time to carry out the same paper feeding and delivery device when implementing different printing methods on different single machines, and it takes time to load and unload the printed matter. Sometimes due to the complexity of the production process or the performance of the printing material (such as ink drying), some processes will not be able to produce at normal processing speed, which will inevitably make the whole production not smooth enough, affecting the entire production line. Production efficiency. Combination printing can solve the above problems, and the production efficiency can be greatly improved.
2. Low loss rate of printed matter
Every single machine processing should have a certain amount of waste added and put. If several single machines are combined, as long as there is a waste quantity added, this will save the number of waste products, and the loss rate of printed materials will be greatly reduced. The cost is also a considerable amount in a year.
3. Small footprint
The space occupied by each single unit is larger than that of the combined printing machine. The combined printing machine has a compact structure, a small machine footprint, and is more convenient to manage and operate.
4. Less operators
The number of operators equipped in each single unit is more than that of the combined printing machine. The number of single machines is more, the time required for installation and commissioning, maintenance and maintenance by the operators is more, and the working intensity of the operators is Big. With combined printing, the number of operators required can be greatly reduced.
5. Small equipment investment
The total investment of each single unit is larger than the total investment of the combined printing press, so the combined printing machine investment is more economical.
6. Conducive to security
In the past, if the purpose of anti-counterfeiting was to be achieved (only different combinations of printing were used in the production and processing of notes of value), they were usually processed separately on different single machines. The effect was not particularly obvious, and the production batches could not be large. If combined printing is realized, the processing of the anti-counterfeit product can be performed in large quantities.
Combination printing was first used in the printing of banknotes, securities, lottery tickets or notes of value. For example, banknote printing has long been in the process of engraving gravure while adding offset, embossing, punching and marking. At present, the use of different printing methods on high-end packaging products to print, increase the difficulty of counterfeiting, also improve the level of anti-counterfeiting, and can be processed in large quantities.
7. Improve the quality and grade of prints
Different printing methods have different printing characteristics. These features can not be replaced by other printing methods in many occasions. Therefore, different printing methods can be used to obtain better printing effects, so as to improve the quality and grade of printed matter. main purpose. For example, some products need to use the low cost and high quality of offset printing. Some products need to rely on screen printing to print a large thickness of printing ink layer and better light resistance. Some products require special printing materials (such as fluorescent ink, UV). Varnish, etc.) to show its special printing effect. In order to meet these special needs, different printing processes are required for printing.
Common combination press
To achieve combined printing, it is necessary to rely on a combination printing machine. In addition to the special combination printing machine for ticket printing, the combination printing machine has been vigorously developed in other fields. The common combination printing machine is introduced as follows.
1. Heidelberg Speedmaster CD 102 Duo series printing machine
The Heidelberg Speedmaster CD 102 Duo series press consists of a flexographic printing unit (with a doctor blade system and an anilox roller), a drying unit, several offset units, plus two coaters (flexible The printing unit is composed of two drying units in sequence. Since the flexographic printing unit is loaded before and after the offset printing unit, the user can mix the traditional ink, water-based varnish, UV ink, UV varnish and the like as needed. For printing on gold and silver cardboard, cardboard or plastic, it is usually necessary to first print a white background. In the past, two offset printing units must be used to ensure that the opaque white ink is evenly covered on the substrate. The flexographic printing unit of the knife system and the anilox roller can achieve the required thickness of the ink layer, the effect is very remarkable, the production cost is reduced, the time is shortened, and the high quality can be obtained even at a printing speed of 13,000 impressions per hour. printed matter.
2. Drent Goebel Novaprint series press
The Delant-Gerbel Novaprint series presses can be equipped with flexographic printing units, gravure printing units, lithographic printing units, screen printing units and finishing units (such as hot stamping, glazing, laminating, etc.) according to different requirements of users. Units such as die cutting, rolling, punching, marking, and even the latest variable data printing (mainly done by inkjet systems) can be used for packaging printing, commercial printing, direct mail printing, newspapers. Printing of advertising inserts, etc.
The emergence and development of combination printing conforms to the development of today's society, and is the result of the cooperation and common development of technology, technology, machinery, electronics, fiber optics, network, management and so on. The combined printing system has a good openness. Through modular design, it can be operated online or offline, and the production process can be flexibly selected, which of course includes post-press processing. In combination printing, in order to make the printed matter have a certain function, it is necessary to add some finishing processes such as light, hot stamping, die cutting, marking, filming, and the like. These processes were generally implemented on a single machine for post-press processing, and can now be directly added to the production line, so the combined printing will be rapidly developed.