Plastic colorant how to correctly apply the index of coloring force? Next, I will introduce you to the three most used methods.

First, when the same pigment is used in different plastic colorants, its color performance and its coloring force and other indicators are not the same, to be exact, mention the pigment in plastic coloring color performance must mention its application.

Second, standard depth in colorimetry, the absolute depth of the pigment can be determined by the color depth of the sample prepared under standard conditions to achieve a certain amount of color depth necessary to express. Its expression method is the standard depth, 1/3 standard depth, 1/25 standard depth. This representation can be visually represented by Schmelzer's color-light continuous depth chart.

Third, the maximum absorption wavelength of the colorant determines its color, and the absorption capacity at the maximum absorption wavelength determines its coloring power. But the coloring power is not only related to its chemical structure, but also related to the dispersability of the pigment. The better the dispersability of the pigment, the higher its coloring power. Pigment coloring power and color matching have very important significance. For example, if you need to match deep tones, you should choose varieties with high coloring power, and when you need to match light tones, you should choose varieties with low coloring power (inorganic pigments). When a pigment is missing in color matching, or the price is more expensive, other colors of the same color can be used instead, but the coloring force of the two pigments is different when matching the same hue.

The above is the plastic colorant three kinds of application coloring power indicators.

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