Investigate the color of the ink: look for color when buying electroplating varnish . Electroplating varnish is sensitive to ultraviolet light. If the electroplating varnish after construction is continuously exposed to ultraviolet light, such as sunlight and fluorescent lamp, the varnish will continue to reverberate and turn yellow, which is the shortcoming of electroplating varnish. Regarding the conventional electroplating varnish, it is temporarily impossible to fundamentally improve, but the degree of yellowing of the electroplating varnish of different suppliers is different unless a specific non-yellowing or extra-white electroplating varnish is used.
Regarding the discoloration of the ink after electroplating varnish, the primary cause is the problem of the ink. There are some pigments in the ink, such as radiance blue, which is a blue acid lake pigment. It is an organic dye, triphenylmethane dyed on an extender pigment such as aluminum hydroxide, which is composed of insoluble pigment pigment in water. The price is low and the hue is low. Obvious, but its light resistance, solvent resistance and alkali resistance are poor. When a solvent such as an alcohol or an alkali is encountered, the red phase is easily dissolved, weakened or disappeared.
Investigate the color of the ink: look for color when buying electroplating varnish. Electroplating varnish is sensitive to ultraviolet light. If the electroplating varnish after construction is continuously exposed to ultraviolet light, such as sunlight and fluorescent lamp, the varnish will continue to reverberate and turn yellow, which is the shortcoming of electroplating varnish. Regarding the conventional electroplating varnish, it is temporarily impossible to fundamentally improve, but the degree of yellowing of the electroplating varnish of different suppliers is different unless a specific non-yellowing or extra-white electroplating varnish is used.
Regarding the discoloration of the ink after electroplating varnish, the primary cause is the problem of the ink. There are some pigments in the ink, such as radiance blue, which is a blue acid lake pigment. It is an organic dye, triphenylmethane dyed on an extender pigment such as aluminum hydroxide, which is composed of insoluble pigment pigment in water. The price is low and the hue is low. Obvious, but its light resistance, solvent resistance and alkali resistance are poor. When a solvent such as an alcohol or an alkali is encountered, the red phase is easily dissolved, weakened or disappeared.
Another indicator for evaluating the odor of electroplating varnish is the residual odor of electroplating varnish after construction. It can not disappear after a long time. The primary source is that the electroplating varnish is not suitable, and some taste is high but cheap. Chemical substances, which must be fundamentally improved, must be difficult, first and foremost, the cost and the choice of suitable materials.
More importantly, the price of electroplating varnish is acquired. The price of electroplating varnish should be evaluated from the brand and cost performance of ink. Many ink multi-level suppliers are mixed, not to buy high-priced products, or varnish products are not authentic.
We have to consider the transportation cost when we purchase electroplating varnish together, so it is very important to choose a reasonable and reliable varnish supplier. These are the common sense points that our company wants to share today.