Application of the hottest digital printing techno

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The application of digital printing technology in carton printing

digital printing technology refers to the use of digital technology to personalize the documents, and then use the prepress layout system to directly transmit the pictures and texts to the digital printing machine through the network to print the final finished products. With the improvement of people's awareness of personalized products, digital printing technology is more and more widely used in daily life and production. Especially in recent years, the application of this technology in carton and carton printing has opened up a new space for its own development

development status

digital printing investors are now interested in packaging printing because it has a broad market and digital technology can provide unusual value. Mr. Venkat punuhtham of Kodak explained: "the digital printing market is a part of Kodak's overall strategy. Kodak is not a digital service provider interested in the packaging field. All digital printers are moving forward in this field and are seizing the market. "Many printing companies have begun to expand the digital printing technology in the packaging field, but before this technology can really penetrate the market, they must fully improve their equipment to meet the packaging printing.

the application of digital printing in packaging means the wide range of printing materials, including high weight materials such as high weight cartons and carton materials. For example, the printing capacity on white ink or various printing materials Three kinds of tone colors, which are mainly used in packaging printing, are rarely used in other printing methods. In the initial development, it was precisely these factors that limited the application of digital printing in packaging to a certain extent. In addition, digital printing has to overcome many problems because of its own characteristics, such as printing density and gloss. While promoting their packaging and printing technology, digital printer manufacturers mainly focus on the following three key factors: feasibility, functionality and printing quality

with the gradual progress of technology, now we can happily see many digital technologies applied in packaging and printing. For example, small batch short version packaging products printing (paper bags, cartons, film packaging products, etc.), packaging design box proofing, corrugated board printing, personalized packaging products printing, packaging products printing with variable data, etc. Nowadays, digital printing has developed to 7-color printing at most, especially suitable for label and packaging printing with spot color and special color requirements, such as enterprise spot color or anti-counterfeiting spot color. The exquisite printing quality can reach up to 2400dpi. The high-precision image of 230 lines/inch ensures that the label and packaging are particularly exquisite. The patented electronic ink makes the printed image sharper, clearer, without blurred edges and diffusion, and can ensure the lasting color of the label and packaging. Some digital printing machines can not only complete high-quality printing quickly and stably, but also integrate processes such as glazing, coating, indentation, die-cutting, folding benefit forming, etc., so as to realize personalized on-demand production. This model has stable quality and high degree of automation, which saves operation preparation time and speeds up delivery

many digital printing users now have digital printing machines for corrugated paper printing, for example, for six color direct printing of corrugated board (in addition to the four colors of yellow, magenta and cyan black, there are also two spot colors of light green and light magenta). They use these to provide customers with smaller batch packaging or test packaging to help them carry out more targeted marketing and provide users with customized products to promote their pop plan

application examples

in order to help packaging and printing enterprises cope with market demand and find new profit growth points, various printing equipment manufacturers are competing to develop digital printing machines with their own advantages. At present, many international well-known manufacturers have launched digital printing systems for the packaging and printing industry and achieved certain success. Among them, inkjet digital printing develops most rapidly. It is necessary to further develop geometric processing methods to allow users to upload individual STL file

1. Xeikon company

xeikon company launched color digital printers for the packaging and printing field, mainly including DCP 320s, DCP 500sp and DCP 500sf a Xeikon DCP 500sp digital printers are mainly used for the printing of folding cartons, paper cups and liquid packaging, with a printing speed of 63. Zhang/h, resolution 600dpi

xeikon's proprietary magnetic particle imaging technology, high-quality hanging technology, powerful color generation tools and accurate registration control are the basis for ensuring the excellent printing quality of its digital printing machine

2. In the field of corrugated board printing, it is still the most decisive in the development of digital ink-jet technology.

the ink-jet printer consists of a dot matrix structure composed of many nozzles. By receiving the layout information of the computer, the ink is emitted from the very thin nozzles, and the direction of ink-jet flight is controlled by the electric field to generate images and graphics on the paper

at present, corrugated boxes have become one of the means for personalized packaging of goods and improving corporate image. Short edition printing and corrugated paper for exhibition have been widely used in foreign countries, and there is still a certain gap in this regard in China

Saigon has always been in a leading position in the digital ink-jet printing industry, and has applied its unique April duo array image color inkjet) technology to the corrugated board printing field to launch a wide width corrugated board digital printing solution - the core of Saigon corjetocorjet is a piezoelectric inkjet head that can be arranged into a variety of arrays and combinations. The nozzle is composed of 512 nozzles, which not only provides speed, quality and stability, but also ensures the printing quality?? In only 5 minutes, the batch t production speed can reach 79 sheets/hour, the thickness of printed corrugated board can reach l OMM, the maximum format can reach 1.55m x 3.2m, and the printing rate of 150 ㎡ =/hour can be 600dpi resolution and "two pass mode" to print 29 full format prints. The whole printing process, from the paper loader providing printing paper to the air dryer and the final automatic unloader, is fully automated

3. Agfa the, FA Dory inkjet digital printer

dotri, a subsidiary of Agfa, has rich experience in the development of digital printing equipment. It is committed to researching digital printing solutions that can meet industrial applications and has developed 7 industry-leading spice (single pass inkjet colorengine) technologies. Spice technology adopts the piezoelectric on-demand inkjet method. The inkjet head is fixed during printing, and the printing material moves, which improves the stability and reliability of the equipment and prolongs the service life of the equipment. The adaptability of the factory digital printer to the substrate includes a wide range of paper and synthetic materials, and can print up to 30 μ M BOPP and 450g/㎡ thick paperboard

4. Post processing technology

in packaging and printing, post printing processing and processing problems are often involved, such as polishing, hot stamping, die cutting, indentation, paste box, etc., which requires digital printing machine manufacturers to take this into account. Some companies are at the forefront of post press technology, such as Kongsberg al series box sample making machine of ESCO, which can handle all kinds of corrugated board, folding carton and other materials such as foam board and sheet. On this basis, Ascot launched the Kongsberg digital paper processing center (DCM) for packaging and pop industries on drupa 2004, which can be used for post press processing of corrugated boards of different sizes

difficulties faced

digital printing has made great progress in the packaging and printing industry in foreign countries, but in China, although the application of digital printing in the packaging and printing field is beginning to take shape, the application situation is not satisfactory. The main constraints can be summarized as follows:

1. Traditional concepts affect the development of digital printing

affected by traditional printing, packaging and printing enterprises Product manufacturers and consumers lack sufficient knowledge and understanding of digital printing and digital printing, and even some misunderstandings always compare the price and quality of traditional printing with digital printing. Based on this, we should further strengthen the work of market publicity and guidance

2. The investment cost of digital printing is too high, which makes investment enterprises flinch

at present, the price of digital printing machines is generally too high. Its high price of tens of thousands or even millions of dollars has deterred many packaging and printing enterprises. At present, after all, it has not formed a large enough scale and influence. Domestic packaging and printing enterprises lack sufficient confidence and grasp of the market. Most people still hold a wait-and-see attitude towards the future of digital printing in the packaging field, which largely hinders the development of digital printing in the domestic packaging and printing industry

3. Consumers are price sensitive and do not have a good understanding of digital printing technology

on the other hand, the price of digital printing products is still relatively high relative to the affordability and consumption level of domestic consumers. Many stores specializing in digital printing to bring energy efficiency place their main customers in large enterprises, and their choice of supply sources tends to be "multiple copies". For the simple printing of general customers whose recycling market range will exceed 5.3 billion yuan by recycling cobalt, nickel, manganese, lithium, iron and aluminum, the price is still very expensive because the overall cost is difficult to fall. Moreover, customers do not know enough about digital printing technology, and know little about its application in paperboard and carton

4. Printing quality needs to be further improved

although the quality of digital printing has been greatly improved, there is still a certain gap compared with traditional printing, especially in terms of density, gloss and color. Under the condition that customers have high requirements for the printing quality of product packaging, the current digital printing quality can not fully meet the requirements

5. Cooperation between digital printing machine and post press processing

the digital printing machine used by many enterprises can only realize printing function without post-processing processing function. If the digital printing machine has strong processability and integrates the post-processing of cardboard boxes and the processing and forming system, its personalized production speed will be greatly accelerated, which will be more convenient for users, save the construction period and speed up the delivery

in addition, many packaging and printing enterprises also lack sufficient experience in the cooperation between digital printing and post press processing, and need to spend some time and energy to understand, familiarize and master

domestic market analysis and future development trend

the current application of digital printing described above mainly focuses on ink-jet printing. As another way of digital printing, electronic photography technology can also gradually develop to cartons and paperboards in the future, mainly Xerox and cromapess. Xerox's maximum printing format is sra3. Cromapess has two types of width: 32cm and socm. The maximum length that can be output is LLMO. The ink is mainly HP Indio products. E-Print (Indigo series products use liquid toner. From a technical point of view, the toner needs to be melted on the paper, so it is inevitable to heat the printing material. The basic heating temperature is about 180 ℃, while ink printing does not need such heating, it only needs to be dried. From this comparison, the machine demand using ink technology reaches 200000 m2, which is more suitable for the improvement of equipment, and can be developed to cardboard and carton printing.

Many printing enterprises choose digital printing technology because they see that the whole world is developing in the direction of fast and personalized, which is the general trend. For large product supply

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