Application of HP high-speed thermal inkjet system in the field of self-adhesive
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The high-speed thermal inkjet system is a relatively new digital printing technology that has only entered the Chinese market in recent years. It has been rapidly promoted and used in a short period of time, which shows that it has a strong vitality. Self-adhesive labels are also the fastest growing area of business in the printing industry. Therefore, it is of practical significance to explore the application of thermal inkjet systems in the field of self-adhesive.
Type, use and characteristics of inkjet equipment
Inkjet printing equipment is divided into four categories: printers, inkjet printers, printing systems, digital printers.
Printer
There are many types of printers, including inkjet printers and inkjet printers, as well as laser printers, thermal printers, and thermal transfer printers that use non-inkjet printing. Its products include Epson, HP, Canon and other brands, mainly for office and commercial printing. The printer was used in the printing industry. In the mid-1990s, after the anti-counterfeiting industry introduced the telephone code anti-counterfeiting mark, it was used to print the digital of the anti-counterfeit mark. The digital number of the original telephone code anti-counterfeiting mark was printed by the printer. However, due to the high price of the printer, small enterprises could not purchase and could not print on the flat sheet. Most companies used the printer to complete the printing of the logo. Mainly made with HP 5000 and inkjet printers.
Printer
The printer technology originated in the United Kingdom, the United States and Germany in the last century. Its core technology is complex and its technical content is high. The printer entered China in the 1980s, with France's Imaje and Britain's Domino having the highest market share in China. The history of China's inkjet printer manufacturing is relatively short. In recent years, some domestic products have been listed. At present, the inkjet printer has been widely used in the beverage, brewing, electrical, building materials and other industries for printing real-time personalized information such as production date, batch number and simple image. In the printing industry, the printer is mainly used for anti-counterfeiting labels and bills with personalized information. It can be composed of one or more printers to quickly and accurately print one set or simultaneously print multiple sets of serial numbers. . It should be pointed out here that the characters and numbers printed by the printer must be the same as the direction of the printing paper, that is, the text, number and paper direction are 180° parallel. In this direction, 1 row to 6 rows can be printed. Numbers, letters or 1 row to 3 rows of Chinese characters. If this limit is exceeded, the printer cannot be completed. As an industrial production equipment, the printer is relatively popular.
Printing system
The high-speed printing system features online printing with high-speed printing equipment, online printing of static and dynamic databases and icons (also available as off-line printing). The nozzle part of the printing system is a horizontal combination of multiple nozzles, which can not only complete the horizontal direction. Printing can also complete vertical printing. For example, a set of personalized numbers or texts with a length of 50 mm, including 25 characters, and a character arrangement direction of 90° to the paper feed direction, the inkjet printer cannot complete the printing of this type. The printing system can accomplish such a task by combining the nozzles. At the same time, due to the high precision (ie resolution) of the printing system, high-speed and stable printing of one-dimensional and two-dimensional codes can be completed. The printing system has a short time to enter China, mainly used in the printing industry. The representative brands include Sai Angel, Jie Ming, and Creation.
Digital printing machine
Everyone has a lot of knowledge about digital printing machines. Mentioned that personalized printing must mention digital printing machines, representing HP HP, INDIGO and other brands. The application objects are fast printing and personalized printing, such as personalized stamp printing by China Philatelic Corporation, and bar code printing in the field of anti-counterfeiting, such as Zhaoxin, Oriental International, and Guangdong Zhengqi.
Development space of printing system
The above four models are closely related to the printing machine, which is the printer and the printing system. Because the printer is constrained by the nozzle and the paper feeding direction (the original design of the printer is required to be printed on the production line of the production line and The serial number, even if the phone code label was produced after a period of time, only a few printers combined to print digital), we can not ask for more complicated printing requirements, so we must meet the market. The new demand is only to transform and update the labor tools, and the printing system is produced under such requirements.
The market space of the printing system is mainly in the following three aspects:
Self-adhesive barcode label
With the rapid development and wide application of bar code technology, people's requirements for the quality, speed and efficiency of bar code printing are also increasing. Especially in logistics systems, ERP systems, and invoicing systems, self-adhesive bar code labels have become indispensable. The lack of automated management of information carriers has enabled bar code printing to break through small-scale production and shift to large-scale production.
At present, the process of personalized barcode labeling is two, one is directly completed by the digital printing machine, and the other is that the printing of the individual part is completed by the laser printer or the barcode printer after the printing machine completes the common part printing. The former is costly and the latter is inefficient. Take medicines as an example. Generally, the annual dosage is tens of millions or even hundreds of millions. No matter which of the above two methods is used, there are contradictions. If the personalized barcode label prints its common part through the label machine, and the personalized barcode printing is completed by the printing system of the printing machine, the quality and speed can meet the requirements of the customer, and its comprehensive The best results.
Bill business
It adopts the printing system to typeset, the direction is not limited, and it has the characteristics of high resolution, which can print the digital, bar code, text and other information on the invoice. It avoids the problem that the printer can only be typeset in the same direction; at the same time, it solves the problem of low printing precision of the printer (mainly after the coating is scratched, the number is sometimes not clear).
Security requirement
With the rapid development of the commodity economy, commodity fraud activities have become increasingly rampant. In recent years, the annual output value of counterfeit and shoddy products in China is about 130 billion yuan, and the country loses more than 25 billion yuan in annual tax revenue. Relevant departments have counted the questionnaire data of 283 famous enterprises. These enterprises have 16 categories of more than 650 varieties of famous products being counterfeited, and counterfeiting enterprises are spread over 490 counties and cities. Taking effective technical measures to prevent counterfeit products is a requirement of enterprises. Anti-counterfeiting label is a huge market. According to relevant statistics, the current annual label usage is about 60 billion pieces. By 2010, the sales of anti-counterfeiting products will be about 15 billion yuan.
The products made by the anti-counterfeiting function of the printing system have the characteristics of high technical content and difficult to counterfeit. If you use infrared ink, magnetic ink or spot color ink to print personalized information (currently only Jieming inkjet equipment can provide this service).
As can be seen from the market demand, the printing system has a huge space for development in the future.
Application of high speed printing system on self-adhesive printing equipment
Inkjet technologies currently used in industrial production in the printing industry fall into two broad categories: piezoelectric technology and thermal inkjet technology. Piezoelectric technology is to squeeze the ink out of the nozzle by energizing the piezoelectric crystal to deform its high frequency. The thermal spray technique uses a micro-resistor to rapidly heat the ink in the nozzle, evaporate to form a bubble, and eject a small portion of the ink out of the nozzle for high-frequency printing.
In the printing process, the personalized data is processed by the system processor and transmitted to the nozzle of the system at high speed, so that high-quality personalized graphic printing can be achieved, including numbers, letters, Chinese characters, and one-dimensional Bar code, QR code, etc. A brief introduction to the characteristics of the printing system is now available:
High quality printing
The printing system is different from the general inkjet printer, and its printing precision is up to 600×600DPI, and its inkjet effect is even comparable to that of a laser printer. It can print various numbers, variable data such as barcodes, QR codes, invisible codes, and images. The accuracy of inkjet is determined by the lateral accuracy (number of nozzles) and the longitudinal accuracy (number of ink streams), which is a decisive factor in the quality of the print. This is not only because of the aesthetic appearance of high-precision prints. Generally, the identification barcode and the two-dimensional code are determined by their lateral accuracy. The lateral accuracy of the identification barcode should be above 240 DPI, and the lateral accuracy of the identification two-dimensional code should be above 300 DPI.
Of course, we should not emphasize the high precision, as long as the quality allows, and also pursue the benefits. You can choose 150DPI or 300DPI freely to save consumables and improve efficiency.
Different requirements for printing quality; printing system can print variable numbers such as barcode, QR code, invisible code, image, etc. It can be widely used in various invoices, vouchers, lotteries, personalized advertising letters, packaging. , printing areas such as self-adhesive labels. The highest precision of the creation brand is 220×660DPI, and its longitudinal precision is also very high.
Flexible nozzle combination
Compared with the printer, the printing system is more convenient in terms of nozzle assembly. A number of nozzles can be combined to complete a variety of more complex graphic printing.
According to different models, nozzles with different precision and different widths are available. Multiple nozzle combinations can be made, typically one unit per inch.
The print width comes standard with 8 inches and can be upgraded to 16 inches. There are also 2", 4" or 6" printheads to choose from. Enterprises can choose different nozzle configurations according to their own production requirements. Each half inch is a combined unit. Each of the creations is 2.5 inches. At present, one controller can achieve up to four nozzle combinations, that is, a 10-inch group.
Production efficiency and routine maintenance
The printing system can generally reach 60 meters / minute to 100 meters / minute, of which the angels and Jie Ming can reach about 100 meters / minute; the creation can reach 60 meters / minute to 80 meters / minute. The printing system using the thermal spray technology can spray out the air particles present in the nozzle, thereby reducing problems such as blocking ink and ink leakage, thereby improving the production efficiency and production efficiency of the production enterprise.
Since the thermal printing technology does not require cleaning nozzles and no wearing parts, the maintenance cost is relatively low.
Ink supplies
Water based ink / solvent based ink.
In the case of ink replacement, the piezoelectric printing system replaces the ink and requires re-cleaning of the nozzle. The thermal printing system is a direct replacement of the ink cartridge and does not require cleaning.
It is worth mentioning that the thermal printing system can use colorless fluorescent ink, magnetic anti-counterfeiting ink, infrared anti-counterfeiting ink, and spot color anti-counterfeiting ink to complete the anti-counterfeiting printing of high-precision barcode and two-dimensional code, and can pass various inspection instruments. Inspection and machine reading. This is a breakthrough in the field of high-speed printing. Allow users to have more anti-counterfeiting options to choose.
Based on the above characteristics of the printing system, the manufacturing speed and quality of the self-adhesive label can be significantly improved, the application range of the self-adhesive label can be expanded, and the anti-counterfeiting performance of the self-adhesive label can be greatly enhanced.
Finally, it should be noted that it is impossible for any kind of equipment to be used in the world. Each type of equipment is developed and manufactured under certain historical conditions and certain technical conditions to adapt to specific product objects. It is impossible to negate yesterday's inkjet printer because of the introduction of the printing system today, nor can it negate the printing system and inkjet printer because of the digital printing press.