How to choose the correct UV coating ? www.zy-print.com

How to choose the correct UV coating ?

www.zy-print.com
UV printing environmental protection, fast, high-quality advantages of the advertising market has been widely praised.The coverage of the UV printer is growing rapidly. UV printing is the biggest bright spot is the proliferation of its printing substrate. In the past can not print the glass, ceramics, metal, acrylic, wood and other materials, but now with UV printing can achieve high-quality printing results.


However, UV ink in the glass, ceramics, metal, acrylic and some smooth wood surface adhesion is not good, easy to fall off. So use the coating to help. UV ink attachment is a very important process, however, the UV printer coating is not long in the market, and the quality of the coating are quit different, poor quality coating will not only damage the quality of the equipment will cause damage to the machine. How to choose the correct UV flatbed printer coating? Need to pay attention to the following aspects: 

1, Adhesion
There are several ways to measure adhesion, such as a hundred grid method.
If  require higher  printing product quality,you can also test the printing by flooding or try to boil printed image to see if the  color off.Adhesion is the key to measuring the quality of UV printer coating. The high quality coating should pass the 100 grid test and do not fall off after soaking or boiling water.
 
2, Smoothness
Smoothness is a common performance index in a coating, referring to the ability of the coating to be painted or sprayed on the surface of the object, the brush marks appearing in the coating, and the automatic flow of sprayed fog particles into a flat smooth surface.Poor smoothness of the UV printer coating will affect the decorative effect of printed matter.
More importantly, if the coating surface of the brush marks do not automatically disappear, rugged coating surface may be able to rub the UV printer nozzle, causing significant losses.High-quality coatings should be tightly formulated and quickly flattened after brushing or spraying.

3, Transparency
As a high value-added decorative products, UV prints on the appearance of the requirements are generally high.This requires that the UV printer coating film is colorless and transparent. Now on the market there are some epoxy resin-based configuration of the two-component coating film yellowing, affecting the decorative effect.
 
4, Weatherability
For UV printing products, especially in outdoor use signs, billboards, prints must be long bright as new, color do not fade. In particular, this requires that the UV printer coating has a function of resisting ultraviolet light. Now some of the coating in the long-term light conditions will be yellow, not suitable for outdoor use. Even in the case of UV printing products used indoors, it is generally necessary to consider the use of weather-resistant UV printer coating to ensure product quality.

5, ease of use
The current UV printer coating on the market has two-component and multi-component products, compared to multi-component products, no need to configure the one-component UV inkjet machine coating in the use of a greater advantage.


6, product safety
This is a matter that must be considered.
Solvent-based UV printer coating is not only large smell, but also in the storage caused by security risks, transportation is not convenient. Because of the high investment in UV inkjet printers, it is best to consider a more secure water base UV printer coating in selecting a UV printer coating.If you must use solvent-based coating, it is recommended to separate from the UV printer, put an end to security risks.