How to use Spectrophotometer to control the color difference of coating powder

 The use of early powder coatings was mainly for the protection of metal corrosion. With the continuous progress of powder coating production and application technology, and the strengthening of environmental protection awareness and regulations in various countries around the world, the application range of powder coatings has continued to expand. Powder coating can be said to be really used in all walks of life. Its color is good or bad, and the deviation of color difference directly affects the quality of the product. The application of the powder coating Spectrophotometer is like a ruler, which regulates the color difference range of the powder coating.

    The color matching of general powder coatings belongs to the complex and difficult method of mixing in the law of color mixing. The powder coating Spectrophotometer mainly uses the two-constant theory and spectral matching algorithm, and uses color matching software to select pigments from the pigment library for K/S spectrum compound calculation. Finally, the formula that is more satisfactory in the predicted color difference is provided to the color matching personnel for selection. At the same time, the powder coating Spectrophotometer is used for color monitoring to detect and control color difference in time. The powder coating Spectrophotometer simulates the photosensitive mode of the human eye to distinguish colors, and at the same time digitizes the colors to make abstract colors concrete, making it easier for operators to process and analyze.
    The powder coating Spectrophotometer and software are mainly based on the data of blackboard, whiteboard, hiding power and pigment to establish a database. In addition to establishing the color data of the formula in the database, other raw materials such as varieties with excellent quality or varieties commonly used by enterprises can also be established in a fixed manner, thereby ensuring reliable data and facilitating color matching in future production. Name a database, the amount of selected materials is generally 20-25, and the data is moved in to complete the establishment of a single database. Just specify the name of the database when color matching, and the system will randomly screen the pigments in the database for matching.
    Establishing a database with accurate information can effectively guide the color matching work for a long time, and help the color matching personnel quickly realize their expectations. However, due to objective factors such as equipment (such as machine aging), customer pigment quality fluctuations, and raw material adjustments, the deviation between the sample and the computer's prediction results will continue to increase. With the continuous introduction of new pigments, the database must also be frequently replenished, Correction work.
    Due to the interference of many external environmental factors, the color matching may also change at any time, so it is necessary to use the powder coating Spectrophotometer and color matching system to simultaneously monitor the color changes and make records, and fill the database in time to improve the color data. The combination of
    powder coating Spectrophotometer and color matching software is currently a good method for powder coating color management. The combination of the two minimizes the chromatic aberration of the powder coating color, and also makes his color better !