The current status of green printing gives birth to environmentally friendly, energy-saving and high-efficient offset presses

With the continuous improvement of people's awareness of environmental protection, energy saving, consumption reduction, green, and environmental protection have become the inevitable requirements for the development of the printing industry. In China, the green printing evaluation system and green printing standards are being gradually formulated and improved. Government printing, teaching materials for primary and secondary schools, and food and drug packaging are also gradually adopting different green printing standards.

In addition to requiring the printing industry to continuously improve the printing process, green printing adopts inks and plate materials that are more environmentally friendly in printing materials, and also puts forward new requirements for offset printing machines.

First of all, green offset presses should be resource-efficient. With the development of various advanced technologies, there are more and more functions of offset presses. How to save resources while developing multiple functions is a major issue in the research of printing presses. The application of many new technologies can significantly reduce the resources consumed by offset presses. For example, manroland (manroland manuel manuellan secondhand equipment) offsets its teeth using advanced surface treatment technology. It is more durable while improving, reducing the consumption of accessories.

Another aspect of resource conservation is energy conservation. The increase in function will inevitably lead to a substantial increase in power consumption. It is necessary to increase the intensity of technological development in order to make efficient use of electrical energy. Many of the technologies developed by Manroland carry out the concept of saving energy and reducing consumption. For example, in the UV system, the power supply has been improved by 5 to 10% compared with the past, while the power consumption has been reduced by 5%. Most of the heat in the heat recovery system can be used for cooling and cooling of cooling equipment and motors, and 94% of the power consumption of this part can be effectively used.

In addition to energy conservation, environmental protection is also reflected in the use of printing consumables. On the one hand, the use of consumables should be minimized. For example, manroland's optimized design of the powder spraying device greatly improves the efficiency of powder spraying compared to other powder spraying devices, while the amount of powder used is drastically reduced, while protecting the production environment of the workshop. Reduced production costs. On the other hand, comprehensive consideration should be given to the recycling of resources. For example, manroland's cleaning system can improve the cleaning effect and reduce the use of cleaning agents through the recycling of cleaning agents; the cooling water in the ink roller cooling device can be recycled. Use, the heat can be used for print drying, etc.; dampening fluid circulation technology integrates fountain solution cooling, filtration, and various components of the automatic detection and supplement technology.

Second, green offset presses must also be highly efficient. In order to meet the needs of packaging printing, modern offset printing presses have also achieved UV printing, on-line coating, and multiple drying in order to realize multi-color printing, so that the efficiency of offset printing presses can be improved. The more production tasks an offset press has completed in a unit of time, the greater the output, and the less resources it consumes per unit time or unit volume, and the more environmental protection it has.

Reducing scrap rates through technical measures is also an effective way to increase the production efficiency of offset presses. Manroland offset presses have a variety of high quality inspection tools that significantly reduce rejects and production costs. For example, the automatic ink supply and control device, on-line quality detection device, on-line sorting device and on-line monitoring system make the offset printing machine always in the best working condition.

In the process of technological innovation, offset presses must continuously meet the requirements of environmental protection. For example, manroland changed the traditional colloidal water fountain roller to a ceramic fountain roller, and improved the water roller arrangement of the traditional dampening device. Can realize non-alcoholic printing; through the optimization and improvement of the rubber roller, the transmission efficiency of the fountain solution is improved, thereby improving the production efficiency.