Flexo printing 1000 questions (131-136)

131 What is the "ERC" electronic register control system?

"ERC" is an internationally-designed electronic register control system. In the printing process, it uses the positioning line of a printing unit as a reference, and the dynamic registration of the positioning lines of other printing units and the reference positioning line is transmitted to the main console through the registration sensor and corrected.

This system is currently selling at a higher price.

132 What are the two types of installation of the flexographic unit drying unit?

Installation of the flexo unit drying device usually takes two forms: most are installed below the printing unit, it takes full advantage of the space of the machine, lowers the center of gravity of the machine, and the structure is stable; the other is installed in the printing unit. Above, the heat is transmitted upwards, not to the plate and the ink path, to avoid the ink on the plate or anilox roller to dry too fast, such as the United States Cancon flexo press to use this form.

133 ink drying methods are divided into several types?

Commonly used ink drying methods are: hot air drying, infrared drying and UV (ultraviolet) curing.

134 What is hot air drying?

Hot air drying is the use of electric heating to produce hot air. The hot air is fed into the drying box on the machine through a pipe and the exhaust gas is extracted. It is characterized by fast heating and faster heat release.

135 What is infrared drying?

Infrared drying uses a row of infrared lamps to radiate heat directly to the substrate. The drying speed is faster than hot air drying, but the heat is slower when it is stopped. It is not suitable for the printing and drying of thin paper and plastic films.

136 What is UV curing?

UV curing is for UV inks. As long as the wavelength of the UV lamp is compatible with the ink, the ink cures rapidly within a fraction of a second or even a fraction of a second.