[UV curing] is a type of radiation curing that uses electromagnetic radiation such as ultraviolet (UV) or electron beam (EB) radiation coating, radiation polymerization, radiation crosslinking and radiation grafting reactions. Chemical process for converting high molecular weight products into low molecular weight substances, curing not directly on the heating substrate, the system does not contain solvents or contains a small amount of solvents, irradiation liquid film after curing is almost 100%, and low volatility (volatile organic compound) emissions. Therefore, since the late 1960s, the technology has developed rapidly in the world, and its products have been widely used in many industries.
Ultraviolet (UV) belongs to electromagnetic radiation. The electromagnetic spectrum includes radio waves, red lines, visible light, ultraviolet light, X-rays and gamma rays, etc., with a wavelength range from 10m to 14m to 106m, of which ultraviolet light has only a very narrow wavelength range. It can be divided into long wave ultraviolet (UVA), medium wave ultraviolet (UVB), short wave ultraviolet (UVC) and ultra-short wave ultraviolet. The shorter the wavelength, the stronger the energy and the weaker the penetration. Long wave UVA, wavelength between 320nm and 400nm, strong penetration, can penetrate glass, ultraviolet energy and most chemical bonds can easily photochemical reaction, usually photocuring is UVA. Medium wave UVB with wavelength between 280nm and 320nm has weak penetration and strong glass absorption capacity. Sunlight is rich in UVA and UVB rays.
Shortwave ultraviolet, wavelength between 200nm and 280nm, the ozone layer has a strong absorption effect on it, so the solar ultraviolet rays are absorbed by the ozone layer before they are absorbed by the ground, has a strong UVC destructive effect on organisms, can kill bacteria, viruses, UV glue curing lamps so they can be used for disinfection. Uv rays can damage the skin and eyes, while UVA can make the skin dark, saggy and wrinkled. UVB rays can produce acute dermatitis (sunburn) and other diseases, the skin will become red, pain and long-term exposure is also easy to cause skin cancer, so the corresponding light curing operation, should pay attention to protection: (1) appropriate shielding equipment, UV curing machine, uv light source is not easy to give; (2) Proper personal protection, wear long-sleeved clothing and cloth work gloves, wear UV protective glasses and masks, do not look directly at the light bulb.
The above is to explain the characteristics and application of ultraviolet (UV) knowledge. Koinu (Dongguan) Precision Optoelectronics Technology Co., Ltd. is a professional R & D and production of various UVLED point light source, [UVLED line light source], UVLED surface light source and [UV curing machine] manufacturers, and can provide solutions and customization according to the actual needs of customers. The company has Japanese production technology, products are exported to South Korea, Japan, the United States, Brazil and other places. Welcome friends from all walks of life exchange guidance. If you want to know more about the UV curing machine, welcome to consult customer service online or call the company’s service hotline for consultation, we will be happy to provide you with quality service! Some of the information/pictures in this article are from the Internet, only for the purpose of sharing new information in the industry, not for commercial use. If any rights are involved, please inform us immediately, and we will delete it immediately. Thank you.
