Early powder coatings were mainly used for metal corrosion protection. With the continuous progress of powder coating production and application technology and the strengthening of environmental protection awareness and regulations all over the world, the application scope of powder coating is expanding. Powder coating is a real application in all walks of life. Its color and the skewness of color difference directly affect the quality of products. The application of powder coating spectrophotometer is like a ruler, which regulates the color difference range of powder coating.

The color matching of general powder coatings belongs to the complex and difficult mixing method in the color mixing law. Powder coating spectrophotometer mainly uses two constant theory and spectrum matching algorithm, and uses color matching software to screen pigments from pigment library for K / s spectrum compounding calculation. Finally, the formula with ideal color difference prediction is provided to color matching personnel for selection. At the same time, the powder coating spectrophotometer is used for color monitoring to find and control the color difference in time. The powder coating spectrophotometer simulates the photosensitive mode of human eyes for color discrimination. At the same time, it digitizes the color, concretizes the abstract color, and makes it easier for operators to process and analyze.
The spectrophotometer and software of powder coating mainly establish the database based on the data of blackboard, whiteboard, covering power and pigment. 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 fixedly to ensure the reliability of the data and facilitate the color allocation of future production. Name a database. The matching selection materials are generally 20-25. Move the data in, that is, complete the establishment of a single database. In color matching, as long as the name of the database is specified, the system will randomly filter the pigments in the database for matching.
The establishment of an accurate database can effectively guide the color matching work for a long time, which is conducive to the color matching personnel to quickly realize their expectations. However, due to objective factors such as equipment (such as machine aging), customer pigment quality fluctuation, raw material adjustment and so on, the deviation between the sample and the computer prediction results will continue to increase. With the continuous introduction of new pigments, the database should often supplement and correct the pigments.
Due to the interference of many external environmental factors, the color matching may also change at any time. Therefore, the powder coating spectrophotometer and color matching system should be used to monitor the color changes at the same time, make records, and fill the database in time to improve the color data.
The combination of powder coating spectrophotometer and color matching software is a frequently used color management method of powder coating at present. The combination of the two reduces the color difference of powder coating color to a very low level and makes its color better!