In recent years, in the field of offset printing and special printing, the demand for UV curing light has been increasing. Therefore, as a user, it is necessary to understand some of its technical features in order to better operate and maintain. The following five characteristics of light curing technology are summarized. The following is a detailed introduction:
The first point, wide adaptability
Light curing technology can be used on a variety of substrates, such as paper, wood, plastic, metal, leather, stone, glass, ceramics, etc., especially for some heat sensitive materials (such as paper, plastic or electronic components).
The light curing product has high production efficiency and low energy consumption; and the light curing equipment investment is relatively low, and the production line is easy to realize. The plant covers a small area and can save a lot of investment; no solvent, pollution reduction, and resource saving, comprehensive consideration is Economy.
Third point, energy saving
The light-curing product is fast curing at room temperature, and its energy consumption is only 1/10-1/5 of the heat-cured formula. Photocuring requires only the radiant energy used to excite the photoinitiator, without the need to heat the substrate, material and surrounding space like thermal curing, and evaporating the solvent or water for dilution, which consumes a lot of energy.
Fourth, environmentally friendly
Another advantage of the photocured product is that it is essentially free of volatile solvents. The reactive diluent used is a high-boiling organic compound, an acrylic multifunctional monomer, which participates in cross-linking polymerization when cured and becomes part of the cross-linked structure. Therefore, it does not cause air pollution, but also reduces the harm to the human body and the danger of fire. It is an environmentally friendly product.
The curing rate is fast, generally in a few seconds to tens of seconds, and can be cured in the fastest time of 0.05-0.1 seconds. It is the fastest drying and curing speed of various coatings, inks and adhesives. For example, UV fiber coatings have reached the fastest speed of 1500-3000m/min, UV offset inks can also adapt to 100-400m/min printing speed, which can meet the production requirements of large-scale automated assembly lines, greatly improving production efficiency and saving The space where the semi-finished products are stacked.
Due to the high efficiency and high performance of photocuring technology and coatings, the application of photocuring technology in the printing industry has been on the rise in recent years. It has not only been applied in traditional processes, but also in new technologies, such as UV inkjet printing and hybrid ink printing. There is no doubt that the application of photocuring technology will continue to grow in the future.