Application of UV flexo technology should pay attention to the problem

The promotion and application of UV flexo printing technology in China is still a process from now on. On the one hand, it is a further understanding and understanding of UV flexo printing technology, and on the other hand, it needs to be in the equipment, light source,
Supporting equipment and technology and other aspects of collaborative improvement and improvement. The following are some of the issues related to the application of UV flexo technology in the synthesis of domestic and international information.
First, UV light source. UV flexo requires a UV light source for each color group. Different colors of UV
Flexographic inks have different abilities to absorb purple lines, such as yellow and magenta, which have lower absorptive capacity and are easier to cure and dry, while blue and black absorb ultraviolet light and have less ability to dry. The power of UV lamps can be assigned according to different colors to ensure proper drying of UV inks of various colors, while also saving energy.
Pay attention to the aging of the UV light source and replace the UV lamp in time to prevent incomplete curing and adhesion.
Second, anilox roller. When using UV flexo inks, the anilox roller preferably has a mesh angle of 30
° or 60 °.
Third, rubber roller. The rubber roller must be resistant to UV ink. The rubber roller usually used is usually made of EPDM rubber (EPDM rubber) or silicone rubber.
Fourth, the plate. Although the currently used flexographic printing plates can basically be used for UV flexo inks, it is better to use a plate with better UV resistance, such as DuPont's UVP-67.
Open type plate and so on.
Fifth, the ink viscosity. UV flexo inks have a slightly higher viscosity than water-based inks or solvent-based flexo inks, and they have a wide range and can range from 200 to 500 cps.
Six, storage. UV flexo inks should be strictly protected from light and heat. Storage temperature should be controlled at 5 °C ~ 30 °C, storage shelf life is generally six months.
Seven, additives. UV flexo printing ink commonly used additives are mainly three kinds: 1. UV reactive diluent;
2. UV curing accelerator; 3. UV ink cleaner.
VIII. Security protection: There are two main points for prevention. One is the harm of UV radiation to the human body and the other is the harm of UV ink to the human body.
UV flexo printing inks and their process technologies are still being continuously improved and new varieties and new equipment are emerging. All of these will promote more perfect UV flexo technology.
At present, the installation of UV ink curing systems in foreign countries is increasing, and the existing flexographic printers are constantly changing the UV ink curing system. Replacing water-based inks and solvent-based inks with UV flexo ink has become a development trend, and has been widely applied to wide-width and narrow-width flexographic printing machines.
There is no doubt that the development prospect of UV flexo printing technology is very good. The promotion and application of domestic UV flexo technology needs to be based on our national conditions and the needs of products, as well as the perfection of domestic equipment and equipment. With the increasingly stringent environmental protection requirements and quality requirements, we believe that in the near future, domestic UV flexo technology There must also be a larger development.
The promotion and application of UV flexo printing technology in China is still a process from now on. On the one hand, it is a further understanding and understanding of UV flexo printing technology, and on the other hand, it needs to be in the equipment, light source,
Supporting equipment and technology and other aspects of collaborative improvement and improvement. The following are some of the issues related to the application of UV flexo technology in the synthesis of domestic and international information.
First, UV light source. UV flexo requires a UV light source for each color group. Different colors of UV
Flexographic inks have different abilities to absorb purple lines, such as yellow and magenta, which have lower absorptive capacity and are easier to cure and dry, while blue and black absorb ultraviolet light and have less ability to dry. The power of UV lamps can be assigned according to different colors to ensure proper drying of UV inks of various colors, while also saving energy. Pay attention to the aging of the UV light source and replace the UV lamp in time to prevent incomplete curing and adhesion.
Second, anilox roller. When using UV flexo inks, the anilox roller preferably has a mesh angle of 30
Or 60.
Third, rubber roller. The rubber roller must be resistant to UV ink. The rubber roller usually used is usually made of EPDM rubber (EPDM rubber) or silicone rubber.
Fourth, the plate. Although the currently used flexographic printing plates can basically be used for UV flexo inks, it is better to use a plate with better UV resistance, such as DuPont's UVP-67.
Open type plate and so on.
Fifth, the ink viscosity. UV flexo inks have a slightly higher viscosity than water-based inks or solvent-based flexo inks, and they have a wide range and can range from 200 to 500 cps.
Six, storage. UV flexo inks should be strictly protected from light and heat. Storage temperature should be controlled at 5 °C ~ 30 °C, storage shelf life is generally six months.
Seven, additives. UV flexo printing ink commonly used additives are mainly three kinds: 1. UV reactive diluent;
2. UV curing accelerator; 3. UV ink cleaner.
VIII. Security protection: There are two main points for prevention. One is the harm of UV radiation to the human body and the other is the harm of UV ink to the human body.
UV flexo printing inks and their process technologies are still being continuously improved and new varieties and new equipment are emerging. All of these will promote more perfect UV flexo technology.
At present, the installation of UV ink curing systems in foreign countries is increasing, and the existing flexographic printers are constantly changing the UV ink curing system. Replacing water-based inks and solvent-based inks with UV flexo ink has become a development trend, and has been widely applied to wide-width and narrow-width flexographic printing machines.
There is no doubt that the development prospect of UV flexo printing technology is very good. The promotion and application of domestic UV flexo technology needs to be based on our national conditions and the needs of products, as well as the perfection of domestic equipment and equipment. With the increasingly stringent environmental protection requirements and quality requirements, we believe that in the near future, domestic UV flexo technology There must also be a larger development.