Whether in print professional magazines, or in exhibitions and seminars, it is possible to hear comments such as the "rapid development" of flexographic printing technology, but recently few gravure techniques have been heard to adapt to changing conditions. The market needs to make progress. A typical example of this is the computer-to-platemaking technology known by flexographic printers as "breakthrough progress." They have overlooked the fact that computer-to-plate technology has been used for many years in gravure printing. The problem is that people in the gravure printing industry are only concerned with burying their heads in production and neglecting self-promotion.
There is no doubt that the gravure printing industry has encountered many challenges in recent years, which has caused the paper product processing companies and printer manufacturers' creativity to be tested. This situation occurred a few years ago with environmental issues. At present, several corresponding solutions have been taken. Some paper product processing companies have used single-component solvent-based inks to increase the recycling rate of the solvent. Some paper processing companies use water-based inks to print on paper and paperboard as much as possible. Other companies use combustion devices to eliminate solvents.
There are more and more short-lived jobs, and profits are not as good as before, but they also face fierce competition from offset and flexo—not to mention the potential of digital printing—all of which are in the gravure industry. The problems that must be addressed squarely in order to maintain the existing market share.
The gravure printing industry must actively meet the challenges brought about by the globalization of business. Multinational food companies intended to monopolize the market have grown stronger, and the decreasing number of users further increases their monopoly power. Multinational corporations involved in the processing of paper products are interested in acquiring new companies in important markets, thereby enhancing their strength in the fierce market competition.
All of the above factors have forced the gravure printing industry to wake up and re-emphasize its advantages. Various new technologies have been adopted to make gravure printing the printing process that companies value.
Schiavi, which produces flexo presses and gravure presses, has excellent conditions and can rely on its technical and market expertise to provide customers with effective solutions.
The following outlines some of the new technologies that Schiavi and Bobst Registron are working on.
1. New type of press management and real-time production quality control electronics 2. Electronic drive connected by fiber optic network 3. Advanced tension control device to adapt to more and more printed materials (also to comply with strict waste management regulations) And new materials developed by film makers.
3. Improved printer control device can make the printer run at high speed (2,000 feet per minute) as required. It is absolutely safe and reliable. 4. The quality control device and fault prevention and identification device promptly prompt the operator before the fault is wasted. Effectively reduce waste 5. Print online follow-up processing device. The flexibility of the gravure printing press has been improved over the past, enabling on-line subsequent processing such as dry bonding, wet bonding, and solventless coating; PVDC coating; cold sealing; hot melt processing; Oil and solvent-based varnish coating treatment (The above-mentioned subsequent processing can also be performed on a flexographic printer; however, problems are more likely to occur when the printer is operated).
6. Develop gravure printing machines that use water-based inks, and pay attention to environmental issues. Our efforts and research efforts are mainly focused on two issues that are of common concern in the industry, namely, waste reduction and short-run printing. As long as these two basic problems can be effectively solved, the gravure printing industry can obtain the necessary profit margin for maintaining competitiveness.
Reducing wastage of waste film, paper, and composite materials in vehicles and cars; setting up roll paper force control values, adjusting color control devices and register control devices to prepare for the next job, expensive printing presses It's only time to idle and idle - all these conditions are reminiscent of waste in the production process (whether it's raw materials, energy, or waste associated with the time). We are engaged in a never-ending battle to minimize the negative factors that affect the efficiency of machine production and the profitability of enterprises.
Due to the intensified market competition, the profits of paper product processing printers are declining. If you consider the cost structure of packaging materials, you can say that the cost structure includes many factors: raw material costs, labor, energy, and processing costs. Due to the cost of raw materials, the cost of ink and the cost of adhesives account for 70% of the cost of sales, the waste caused in the production process has a great influence on the profits of the company. As long as the waste of a few percentage points is reduced, it will greatly help increase corporate profits. So far, in order to reduce the waste caused in the printing process, we have taken the following measures:
The structure of the printing apparatus is more compact, and the length of the web passing path is shortened by about 30% by adopting a printing roller presetting device, and a short-range web register adjusting device (installed in the dryer frame) can also be configured.
Blind-type development device for drying room; high-efficiency dryer with single-sided opening; precise air temperature control device with tolerance of ±1 degree Celsius; set air supply, circulation and exhaust device; significantly reduce air extraction in printing room Development of drying chambers of different lengths to minimize the web length required for printing operations.
Design and develop a new ink supply system to ensure the ideal ink supply at any speed and reduce the occurrence of ink splashes.
Improve the design structure of the machine to make it easy to operate, clean and maintain.
In cooperation with our electronic equipment division and the Registron branch of the Bobst Group, we have developed a very sensitive web force control device. We like to call our cooperation between PERQ (printer, electronics, register control and quality control) cooperation.
Our gravure presses can be equipped with advanced register and quality control devices developed by the Bobst Registron branch. This allows us to provide customers with comprehensive solutions.
The degree of waste We have made some progress in our efforts to reduce waste (depending on the substrate):
- The waste amount is 4 meters when the paper is fed between the paper rolls;
- Re-start printing the same job, the amount of web waste is equivalent to the length of the fuselage;
- When printing new jobs, the web waste is equivalent to several times the length of the fuselage.
Short-cut printing press Schiavi has been a pioneer in the design and manufacture of gravure presses with quick-change job performance. For example, the Non-Stop (meaning “continuously on the goâ€) model launched in the 1980s was a great success and later became a new reference standard in the industry. It was only after the launch of the Non-Stop press that we began to see that new presses were constantly being developed to meet the need for fast conversion of jobs.
Since then, great progress has been made in accelerating the conversion rate of live jobs, including:
1. The rubber imprinting roller is equipped with a sleeve, which can be replaced quickly (one person can), without tools, without cutting off the web. The replacement of the rubber impression roller can be completed in less than a minute, while it takes 30 minutes on the old press.
2. The squeegee blade holder is equipped with a pneumatic locking device. The squeegee can be replaced without tools. The entire replacement process takes less than a minute. This design structure enables the squeegee blade to have extremely high linearity and reduce the pressure of the squeegee, which is advantageous to prolong the service life of the roller, and increase the printing speed and the printing quality.
3, all inking components are mounted on the carriage type bracket. Printing cylinders and inking units can be replaced at one time or separately.
4, to achieve a computer control and management of the printing press. In this way, the main operating parameters such as roll force, temperature, percentage of air circulation, printing speed and overprinting can be automatically stored and recalled.
Using the above-mentioned device in combination with minor adjustments, it would take up to 45 minutes to replace a job on an 8-color press in a managed printing plant.
However, although such job replacement is not slow, it is not fast for printing jobs that are only a few kilometers long. In this regard, Schiavi has recently achieved some technical results.
Although the trolley-type bracket has advantages in terms of job replacement, it is inconvenient to move and a lot of cleaning devices must be configured, not to mention its high cost. Therefore, there is a need for designing a brand-new quick-change device for work items without using a carriage-type bracket and without using a cleaning device on a printing press. At present, this new quick-change quick-change device has been introduced, so the 8-color printer only needs to stop for 20 minutes. Three presses using this patented technology have been put into operation in Italy and Germany respectively, and more are still in the manufacturing process. The new printer is equipped with a computer-controlled online print cylinder and ink tank cleaning device, and uses a multi-function trolley to replace the drum. In order to further shorten the preparation time of the tuning machine, the computer is also used to automatically regulate the squeegee.
The encouraging conclusion is that there have been some major innovations in today's gravure printing machine technology. From this we can draw some very encouraging conclusions:
1. Rotary gravure printing technology still has vitality. It is working hard to fight and has no intention of handing over the market to other printing technologies. Gravure printing technology is still moving forward.
2. We can and should, like the flexo printing industry or the digital printing industry, spare no efforts to promote the unique advantages our bank has.
3, it is necessary to allow customers to fully understand the advantages of gravure.
We hope that there will continue to be good competition among various printing technologies and that we will work hard to meet the challenges of the 21st century. If we say that past experience has given us some understanding, it is that "We will succeed." (Germany) Frank Passarelli
There is no doubt that the gravure printing industry has encountered many challenges in recent years, which has caused the paper product processing companies and printer manufacturers' creativity to be tested. This situation occurred a few years ago with environmental issues. At present, several corresponding solutions have been taken. Some paper product processing companies have used single-component solvent-based inks to increase the recycling rate of the solvent. Some paper processing companies use water-based inks to print on paper and paperboard as much as possible. Other companies use combustion devices to eliminate solvents.
There are more and more short-lived jobs, and profits are not as good as before, but they also face fierce competition from offset and flexo—not to mention the potential of digital printing—all of which are in the gravure industry. The problems that must be addressed squarely in order to maintain the existing market share.
The gravure printing industry must actively meet the challenges brought about by the globalization of business. Multinational food companies intended to monopolize the market have grown stronger, and the decreasing number of users further increases their monopoly power. Multinational corporations involved in the processing of paper products are interested in acquiring new companies in important markets, thereby enhancing their strength in the fierce market competition.
All of the above factors have forced the gravure printing industry to wake up and re-emphasize its advantages. Various new technologies have been adopted to make gravure printing the printing process that companies value.
Schiavi, which produces flexo presses and gravure presses, has excellent conditions and can rely on its technical and market expertise to provide customers with effective solutions.
The following outlines some of the new technologies that Schiavi and Bobst Registron are working on.
1. New type of press management and real-time production quality control electronics 2. Electronic drive connected by fiber optic network 3. Advanced tension control device to adapt to more and more printed materials (also to comply with strict waste management regulations) And new materials developed by film makers.
3. Improved printer control device can make the printer run at high speed (2,000 feet per minute) as required. It is absolutely safe and reliable. 4. The quality control device and fault prevention and identification device promptly prompt the operator before the fault is wasted. Effectively reduce waste 5. Print online follow-up processing device. The flexibility of the gravure printing press has been improved over the past, enabling on-line subsequent processing such as dry bonding, wet bonding, and solventless coating; PVDC coating; cold sealing; hot melt processing; Oil and solvent-based varnish coating treatment (The above-mentioned subsequent processing can also be performed on a flexographic printer; however, problems are more likely to occur when the printer is operated).
6. Develop gravure printing machines that use water-based inks, and pay attention to environmental issues. Our efforts and research efforts are mainly focused on two issues that are of common concern in the industry, namely, waste reduction and short-run printing. As long as these two basic problems can be effectively solved, the gravure printing industry can obtain the necessary profit margin for maintaining competitiveness.
Reducing wastage of waste film, paper, and composite materials in vehicles and cars; setting up roll paper force control values, adjusting color control devices and register control devices to prepare for the next job, expensive printing presses It's only time to idle and idle - all these conditions are reminiscent of waste in the production process (whether it's raw materials, energy, or waste associated with the time). We are engaged in a never-ending battle to minimize the negative factors that affect the efficiency of machine production and the profitability of enterprises.
Due to the intensified market competition, the profits of paper product processing printers are declining. If you consider the cost structure of packaging materials, you can say that the cost structure includes many factors: raw material costs, labor, energy, and processing costs. Due to the cost of raw materials, the cost of ink and the cost of adhesives account for 70% of the cost of sales, the waste caused in the production process has a great influence on the profits of the company. As long as the waste of a few percentage points is reduced, it will greatly help increase corporate profits. So far, in order to reduce the waste caused in the printing process, we have taken the following measures:
The structure of the printing apparatus is more compact, and the length of the web passing path is shortened by about 30% by adopting a printing roller presetting device, and a short-range web register adjusting device (installed in the dryer frame) can also be configured.
Blind-type development device for drying room; high-efficiency dryer with single-sided opening; precise air temperature control device with tolerance of ±1 degree Celsius; set air supply, circulation and exhaust device; significantly reduce air extraction in printing room Development of drying chambers of different lengths to minimize the web length required for printing operations.
Design and develop a new ink supply system to ensure the ideal ink supply at any speed and reduce the occurrence of ink splashes.
Improve the design structure of the machine to make it easy to operate, clean and maintain.
In cooperation with our electronic equipment division and the Registron branch of the Bobst Group, we have developed a very sensitive web force control device. We like to call our cooperation between PERQ (printer, electronics, register control and quality control) cooperation.
Our gravure presses can be equipped with advanced register and quality control devices developed by the Bobst Registron branch. This allows us to provide customers with comprehensive solutions.
The degree of waste We have made some progress in our efforts to reduce waste (depending on the substrate):
- The waste amount is 4 meters when the paper is fed between the paper rolls;
- Re-start printing the same job, the amount of web waste is equivalent to the length of the fuselage;
- When printing new jobs, the web waste is equivalent to several times the length of the fuselage.
Short-cut printing press Schiavi has been a pioneer in the design and manufacture of gravure presses with quick-change job performance. For example, the Non-Stop (meaning “continuously on the goâ€) model launched in the 1980s was a great success and later became a new reference standard in the industry. It was only after the launch of the Non-Stop press that we began to see that new presses were constantly being developed to meet the need for fast conversion of jobs.
Since then, great progress has been made in accelerating the conversion rate of live jobs, including:
1. The rubber imprinting roller is equipped with a sleeve, which can be replaced quickly (one person can), without tools, without cutting off the web. The replacement of the rubber impression roller can be completed in less than a minute, while it takes 30 minutes on the old press.
2. The squeegee blade holder is equipped with a pneumatic locking device. The squeegee can be replaced without tools. The entire replacement process takes less than a minute. This design structure enables the squeegee blade to have extremely high linearity and reduce the pressure of the squeegee, which is advantageous to prolong the service life of the roller, and increase the printing speed and the printing quality.
3, all inking components are mounted on the carriage type bracket. Printing cylinders and inking units can be replaced at one time or separately.
4, to achieve a computer control and management of the printing press. In this way, the main operating parameters such as roll force, temperature, percentage of air circulation, printing speed and overprinting can be automatically stored and recalled.
Using the above-mentioned device in combination with minor adjustments, it would take up to 45 minutes to replace a job on an 8-color press in a managed printing plant.
However, although such job replacement is not slow, it is not fast for printing jobs that are only a few kilometers long. In this regard, Schiavi has recently achieved some technical results.
Although the trolley-type bracket has advantages in terms of job replacement, it is inconvenient to move and a lot of cleaning devices must be configured, not to mention its high cost. Therefore, there is a need for designing a brand-new quick-change device for work items without using a carriage-type bracket and without using a cleaning device on a printing press. At present, this new quick-change quick-change device has been introduced, so the 8-color printer only needs to stop for 20 minutes. Three presses using this patented technology have been put into operation in Italy and Germany respectively, and more are still in the manufacturing process. The new printer is equipped with a computer-controlled online print cylinder and ink tank cleaning device, and uses a multi-function trolley to replace the drum. In order to further shorten the preparation time of the tuning machine, the computer is also used to automatically regulate the squeegee.
The encouraging conclusion is that there have been some major innovations in today's gravure printing machine technology. From this we can draw some very encouraging conclusions:
1. Rotary gravure printing technology still has vitality. It is working hard to fight and has no intention of handing over the market to other printing technologies. Gravure printing technology is still moving forward.
2. We can and should, like the flexo printing industry or the digital printing industry, spare no efforts to promote the unique advantages our bank has.
3, it is necessary to allow customers to fully understand the advantages of gravure.
We hope that there will continue to be good competition among various printing technologies and that we will work hard to meet the challenges of the 21st century. If we say that past experience has given us some understanding, it is that "We will succeed." (Germany) Frank Passarelli
Zhejiang Hisun Electrical Appliance Co.,Ltd , https://www.cn-hisun.com