At present, rubber color matching technology is rarely introduced. In the rubber process technology book is also passed. The color matching of rubber enterprises is mostly based on experience, using trial and visual color matching, sometimes the color agent quality changes, it is difficult to correct and adjust the color difference. Although there are many kinds of colors, there are only a few for rubber coloring. How to make use of this limited coloring pigment to prepare a variety of colors of rubber? As a rubber formula designer, we should first understand the color matching principle and adopt appropriate methods to realize the colored rubber designed.

Rubber color matching can be mixed with red, yellow and blue. You can get all the colors you want. Various colors can be regarded as red, yellow, blue three primary colors mixed with a proportion of the three primary colors, as shown in the figure:

We call red, yellow and blue the primary colours. By blending any two of these three primary colors, red, yellow and blue, you get a variety of other colors. Such as red and yellow mixed, can get orange, yellow and blue mixed, can get green, [but in practice we apply the coloring agent, its coloring power may be very different, so in the proportion of the amount, there are very different]. If the two colours are mixed in different proportions, more tones can be obtained. These colors are collectively called intermediate or secondary colors. If the secondary color and different colors of the primary or secondary color are mixed, it is called secondary color or tertiary color. For example: with orange and green phase deployment, then become olive, green and purple phase deployment, gray, and the second color orange and second color purple phase deployment, then appear brown. Such as the arrangement of three primary colors and two colors, drawn into a triangle color map. You get a bunch of three colors. As shown in figure:

At the same time can also be in the primary color or intercolor basis, add appropriate titanium dioxide [rutile type] or lithopone, you can make pink, light blue and other light color. If you add the right amount of carbon black can be prepared brown, dark green, coffee and other lightness of different colors. It should be pointed out that three basic colorants, red, yellow and blue, were mixed in equal quantities to produce black! Black may be said to be a special example of the third color.

Rubber coloring is different from other materials coloring, because whether it is dry rubber natural rubber or a variety of dry glue glue, or natural latex or synthetic latex, artificial latex, they have a certain color, causing a certain difficulty in coloring. Compounds at the same time, also with many different ingredients added in different colors of rubber additives, rubber to withstand for a period of vulcanization molding under high temperature and high pressure, some still increase the second period of high temperature vulcanization, do not change color, when mixing dispersion, cooperate with other agent has good compatibility, color rubber products under the conditions of use, should have good adaptability, such as weather resistance, resistance transference, Heat resistance, chemical resistance, and environmental protection non-toxic safety, etc., but also take into account the product cost, rubber color staff must be on the basis of ensure the quality of coloring, consider pigment application performance optimization, the application object, comprehensive changes in the interaction of formulation and application process, to choose the right paint, color rubber products produced to meet customer demand. Therefore, rubber rubber color matching is a complex system of pigment chemistry, polymer chemistry and surface physical chemistry.