With a variety of processing technology, appear in front of us, different processing technology, to bring us the effect, is not the same, in the process of processing, there will be some factors affecting the processing performance, then several common factors affecting the drying performance of screen printing processing is what?
1, ink auxiliary agent affect drying performance
In order to adjust the printing adaptability of ink in real time, different properties and composition of auxiliary agents are generally added in the printing process. The addition of auxiliary agent is sometimes to accelerate the drying rate of ink, sometimes in order to slow down the drying rate, according to
The nature of different ink is appropriate to add.
2. The humidity and temperature of the printing environment affect the drying performance
Generally speaking, when the temperature of screen printing processing environment is high, the molecular movement in the ink is accelerated, and the evaporation rate of the solvent is improved. The drying rate of the ink is much faster than that at room temperature. When the temperature is low, the drying rate decreases. Similarly, the humidity of the printing site will also affect the drying speed of the ink oxidation conjunctiva. The higher the relative humidity, the worse the penetration and cohesion of the ink, the more difficult the ink will be to dry.
3, the substrate material affects the speed of drying
The amount of water contained in the substrate of different materials, sizing degree and ink absorption performance are also different, which directly affects the condensation rate of ink in the process of screen printing. In general, less water content, good ink absorbent material in ink drying performance than water content, poor ink absorbent material.
4, different pigments affect the dryness of ink
Due to the different pigments contained in the phenol, phenol, aniline and other components are different and different, when these different pigments in the polymerization reaction with ink, they show in the ink permeability and drying performance will also have a significant difference.