Three questions to deepen the understanding of PU color paste

- 2023-03-21-

PU color paste is essentially a color paste. So, let's first understand the definition of color paste. Color paste, from a professional point of view, is to make pastes of different colors according to different resins and objects of use, and then according to different formulation requirements, so as to make the color of the product rich and improve its color. added value etc. Therefore, the color paste can be considered as a colorant.
1. If the color paste is added to the polyurethane resin, how much should the adding ratio be controlled?
This mainly depends on the color requirements and hiding power requirements, as well as the quality of the color paste. For PU color paste, you can try it first, and then judge whether it needs to be adjusted.
2. What is the ratio of silk screen silicone and color paste? In cosmetics, what is the difference between pigment, toner and color paste?
The ratio of screen printing silica gel to color paste, referred to as the ratio, is generally controlled at 10:1, that is, generally about 10% of color paste is added. For pigments, toners, and color pastes in cosmetics, the differences between the three are mainly in the three points of hiding power, moisture level, and ease of cleaning.
3. How to avoid iridescent substances on the surface of rubber products?

This problem is relatively easy to encounter for rubber products. If you want to solve it, you must make a reasonable formula. In addition, some oils and resins should be used as little as possible. By doing these two things, this problem can be well avoided.