Combined printing refers to the combination of two or more different printing methods to complete different printing on-line and even the printing process including post-press processing, that is, multiple printing processes and printing processes (or printing materials such as plastic films) are completed in one pass. Printing method for post-press processing.
The previous combination printing mainly refers to adding glazing, marking, slitting, folding and other processes to the printing machine. In terms of form and complexity, it can no longer be the same as the combination printing that appears today. The combination printing now refers to the combination of different printing methods, which is mainly for the convenience of production and processing, cost savings, and efficiency, or to meet the requirements of anti-counterfeiting and improve the quality of printing, such as processing a commodity Packaging, lottery tickets, etc. use a combination of multiple printing methods and post-press processing techniques. This printing method has already occupied a considerable proportion in the current printing applications.
Advantages of combination printing
In the past, if a different printing method was used to complete a printed product, it was usually processed on different stand-alone machines, which took a lot of time, and the loss rate of the printed products was high. Operators spend a lot of equipment investment. If combined printing is achieved, all the processes of a product are completed at the same time online.
1. High production efficiency
When different printing methods are implemented on different stand-alone machines, the same paper feeding and receiving device is used, and it takes time to load, unload, and transport printed matter. Sometimes due to the complexity of the production process or the performance of the printing material (such as ink drying) and other reasons, some processes cannot be produced at the normal processing speed, which will inevitably make the entire production smooth and affect the entire production line. Production efficiency. Combination printing can solve the above problems, and production efficiency can be greatly improved.
2. Low loss rate of printed matter
Each single-machine processing should have a certain amount of waste product addition. If several single machines are combined, as long as there is a waste product addition number, this saves the waste product addition number, the loss rate of printed products is greatly reduced, saving In addition to the cost, it is also a considerable amount in a year.
3. Small footprint
The space occupied by each stand-alone machine is larger than that of a combined printing machine. The combined printing machine has a compact structure, less machine footprint, and more convenient management and operation.
4. Fewer operators
Each single machine is equipped with more operators than the combined printing machine. The number of single machines is more. The operator spends more time on installation, commissioning, maintenance and maintenance, and the operator's work intensity Big. With combined printing, the number of operators required can be greatly reduced.
5. Small total investment in equipment
The total investment of each single machine is greater than the total investment of the combination printing machine, so the investment of the combination printing machine is more economical.
6. Conducive to anti-counterfeiting
In the past, to achieve the purpose of anti-counterfeiting (only different combination printing was used in the production and processing of value notes), it was usually processed separately on different stand-alone machines. The effect was not particularly obvious, and the production volume could not be large. If combined printing is achieved, anti-counterfeit products can be processed in large quantities.
Combination printing was first used in the printing of banknotes, securities, lottery tickets or notes of value. For example, printing of banknotes has long been accompanied by processes such as offset printing, relief printing, punching and marking while engraving intaglio. At present, the characteristics of different printing methods are used to print on high-end packaging products, which increases the difficulty of counterfeiting, which improves the level of anti-counterfeiting, and can be processed and produced in large quantities.
7. Improve printing quality and grade
Different printing methods have different printing characteristics. These characteristics are irreplaceable by other printing methods in many occasions. Therefore, different printing methods can be used to obtain better printing effects to improve the quality and grade of printed products. This is also combined printing. main purpose. For example, some products need to take advantage of the low cost and high quality of offset printing, some products need to rely on screen printing for larger printing ink layer thickness and better light resistance, and 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, it is required to use different printing processes for printing.
Common combination printing machine
Achieving combination printing depends on the combination printing machine. In addition to the special combination printing machine used for bill printing, the combination printing machine has also been vigorously developed in other fields. The common combination printing machines are introduced as follows.
1. Heidelberg Speedmaster CD 102 Duo series printing machine
Heidelberg Speedmaster CD 102 Duo series printing machine is composed of a flexographic printing unit (with doctor blade system and anilox roller), a drying unit, several offset printing units, plus two glazing units (flexible Plate printing unit) and two drying units in turn. Because the flexographic printing unit is loaded before and after the offset printing unit, users can use traditional ink, water-based varnish, UV ink, UV varnish, etc. as needed. If printing on gold and silver cardboard, cardboard or plastic, usually a layer of white background must be printed first. 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 anilox roller can achieve the required ink layer thickness. The effect is very significant, the production cost is reduced, and the time is shortened. Even at a printing speed of 13,000 prints / hour, high quality can be obtained. printed matter.
2. Drent Goebel Novaprint series printing machine
The Drant-Geber Novaprint series of printing machines can be equipped with flexographic printing units, gravure printing units, lithographic printing units, screen printing units and post-press processing units (such as hot stamping, glazing, laminating, Die cutting, rolling, punching, marking) and other units, and even the latest variable data printing (mainly done by inkjet system), 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 need for cooperation in many aspects such as technology, process, machinery, electronics, optical fiber, network, management and common development. The combination printing system has a good openness. Through modular design, it can be operated online or offline, and the production process can be flexibly selected. This of course also includes post-press processing procedures. In combination printing, in order to make the printed matter have a certain function, it is necessary to add some post-press processing procedures, such as glazing, hot stamping, die cutting, marking, laminating, etc. In the past, these processes were generally realized on a single machine for post-press processing, and can now be directly added to the production line to complete, so combined printing will surely get rapid development.
Tripod Flipchart,Children Folding Easel,Flip-Chart Whiteboard,Children Folding Easel Whiteboard
Dongguan Aoxing Audio Visual Equipment CO.,Ltd , https://www.aoxing-whiteboard.com