4 drying methods of water-based wood coating.

The application of water-based wood coatings has been recognized by the relevant industries a major trend, to achieve efficient operation there are many difficulties to overcome, drying technology is one of many difficulties.
water-based wood coating drying methods are many, different drying methods on the drying speed of water-based coatings and film quality is obviously different, the following is introduced 4 kinds of water-based wood coating drying methods.
1. Natural drying natural drying has the advantages of simple method and universal application, but at the same time it has the defect of slow drying speed.
under natural conditions, temperature and humidity and wind speed vary from time to time, and the drying speed and film quality are unstable.
2. Hot air drying hot air drying is the use of conflow principle, the temperature of 40-60 degrees C of hot air as a heat carrier, heat energy to the surface of the workware coating, the coating absorbs energy and cured into a membrane heating and drying method.
is often used as a heat source to allow the coating to dry quickly.
the use of hot air drying process, can significantly speed up the coating drying speed, and has a strong compliance characteristics, is a more common way of drying.
3. The advantages of microwave dry microwave heating are that the drying speed is particularly fast, different substances are selectively absorbed for microwaves, there is no form requirement for the dried object, the heating of the coating film is very average, there is no temperature gradient, can dry the thick film.
4. Infrared dry infrared curing can be used to dry the coating of water-based wood coatings.
so-called infrared curing actually refers to the coated furniture plate and its coating in the infrared light, absorbing radiant energy and converted into thermal energy, thus completing the curing of the coating.
infrared curing has the advantages of fast curing speed, rapid heating, good curing quality, but when using infrared heating drying coating, the coating has a clear temperature gradient, its drying is extended from the outside to the inside, which makes it not suitable for drying thick coating film.
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