Color matching and method of pigment in paint factory

Color matching of color materials preparation of color matching Huicong paint net: when using various color materials for color matching, it is necessary to take the standard color card or standard color plate as the benchmark First, it is necessary to make clear the name of the color to be prepared on the color card, then find out the basic color phase of the matching color consistent with the standard color card, and judge the main color and auxiliary color of the color, and the brightness and purity of the color When several kinds of color materials are needed, the order of adding primary and secondary colors, the proportion between them (i.e proportion) and the amount needed should be specified Then choose the color material with better performance and color degree (i.e coloring power), and prepare the mixing equipment and tools, then you can mix the color When the coating operator uses the color material to match the color, if the color coating is not available in time, the main color phase which has been prepared by the primary color coating can be used The so-called main color is to use two or more primary color coatings to mix out the basic color, and then adjust the hue, lightness and purity with the pigment paste The pigment matching of paint factory is to mix the resin, oil, pigment (according to the proportion of color matching), drier and organic solvent to make the finished paint of certain color after grinding and mixing Color matching method: according to the theory of basic color knowledge, the color matching method of color materials can be divided into two kinds of color matching methods: additive color method and subtractive color method The brief description is as follows: (1) Additive color matching: when different wavelengths of color light shine on objects, the wavelengths of color light reflected by different objects are also different The color seen by the human eye is the color that can be presented by the color light in a certain wavelength range, such as blue is the color with the wavelength in the range of 450-500 μ M The color, lightness and purity of this blue are very standard If two different colors of light are used, the color light reflected (refracted) at the same point (on the white screen) will stimulate people's eyes, and the color of the color light seen by people's eyes is more vivid and bright than the color (hue) of the visible color light of single color people's eyes This shows that the color can be added to get a brighter and brighter hue Add colors to get more different bright colors The method of adding colors to get more mixed colors with different brightness is called additive color matching (2) subtractive color matching: there are six main colors in the spectrum of sunlight, namely red, orange, yellow, green, blue and purple According to the knowledge of color theory, the pigment in the object can absorb some color light, but reflect the color light that cannot be absorbed, so as to present the color of the object given by the reflected color light (also a color that can be presented by the color beam within a certain wavelength range) The same is true for the pigment When the sunlight hits the blue pigment, the blue pigment absorbs all orange light, most red and Yellow light The yellow pigment can absorb all the purple light, blue light and the red light which is mostly absorbed by the blue light, so the yellow and blue pigments absorb other color light when they are mixed, and only the green light is left Therefore, green is a mixed color after the color light of other colors is absorbed That is, the color after mixing yellow and blue It can be concluded that a composite color can be obtained after mixing several kinds of pigment colors It absorbs the other primary colors used to mix this color, and reduces the original bright hue, lightness and chroma of those pigment colors That is to say, the hue, lightness and purity are reduced in different degrees This color matching method is called subtractive color matching.