The production of architectural interior and exterior wall coatings with color matching technology points
1、Reference to determine
Paint color matching should be carefully studied before the color card or the specified color raising card or the provided paint samples, figure out the color shade range, the main color, the secondary color, the pigment type of the color that needs to be used, and the preliminary formulation of the approximate amount of each pigment in the formula. In addition, the physical properties of the pigment and the color characteristics parameters should be well understood.
2, color paste inspection
The fineness of the color paste should be tested before color matching, and it can be used for color matching only when it reaches the fineness requirement, and the fineness of the color paste is required to be consistent, and the pigment content is consistent. In the preparation of batches, the color paste of different batches can be mixed and homogenized, and then used. Yuhong pigment produces organic pigment color powder for paint.
3、Color mixing
Add the color paste slowly to the reference paint (white paint) or base material with sufficient stirring. When adjusting the color, you should adjust the shade first, and then adjust the hue. For example, when adjusting to dark green paint, it should be dominated by medium chrome yellow pulp, and add iron oxide blue pulp to dark green; with the addition of iron blue pulp, the color gradually deepens, and then add a small amount of carbon black pulp to make the green deepen.
4、Color paste varieties
In the premise of ensuring that the color meets the requirements, the variety of color paste used should be as little as possible, because the more types of color added, the more light is absorbed, the lower its brightness after the color, the darker the color becomes. At the same time, the more varieties of color paste, the greater the workload of color matching. Yuhong pigment’s pigment color powder is bright and colorful.
5、Set aside the base material
When using color paste, you can reserve a part of the base material at the beginning, so that you can consider increasing or decreasing the ratio according to the number and variety of color paste added. However, all the base material and all the ingredients in the formula should be made up and fully mixed before measuring the color. The advantage of adding the base material in parts is to be able to remedy when the color is dark, or to adjust the amount of base material when the required color has been formulated without using the required amount.
