Coating technology: pearl pigment color matching

Core tips: 1 Overview The transparency of pearlescent pigment should be fully utilized in color mixing Pearlescent pigments can be combined with ordinary pigments to create a variety of bright colors and high purity colors In fact, pearlescent pigments are often combined with other pigments to enhance the visual effect Some organic pigments with high transparency, such as titanium cyan, titanium cyan, quinacridine red, etc., can create very bright and bright colors with pearlescent pigments At the same time, when the pearlescent pigment has a good arrangement, the color of the reflected light will be stronger, and the color of the scattered light will be much weaker Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Paint Home News: an overview of the deployment of color, should make full use of pearlescent pigment transparency Pearlescent pigments can be used in combination with ordinary pigments to create a variety of colors with bright colors and high purity In fact, pearlescent pigments are often combined with other pigments to enhance the visual effect Some organic pigments with high transparency, such as titanium cyan, titanium cyan, quinacridine red, etc., can create very bright and bright colors with pearlescent pigments At the same time, when the pearlescent pigment has a good arrangement, the color of the reflected light will be stronger, and the color of the scattered light will be much weaker In thinner paint, the effect of bright color will be more obvious It should be noted that the concept of mixing two pearlescent colors is totally different from that of mixing two ordinary colors For general pigments, each color will absorb its complementary; but pearlescent will add the complementary color to the overall color effect For example: ordinary red plus green will get black, but home interference color of pearlescent red plus interference color of pearlescent green will get a pearlescent yellow, and this yellow will be very weak Therefore, it is not recommended to mix two interfering pearlescent pigments, but one interfering pearlescent color can be mixed with a pure white pearlescent color to prepare the color When mixing the pearlescent color, try to avoid using too much colorant, because excessive absorbable color will cover the pearlescent color at the reflection angle The remarkable characteristic of two kinds of pearlescent paint is that the film color changes with the viewing angle When mixing a paint, its color shall be divided into two parts: positive angle of view or reflection angle color; angle of reflection or scattering angle color The following are the steps to prepare pearlescent color: 1 Interference pearlescent pigment is called "interference pearlescent", which is the ultra-high light series color in our products Based on their special optical properties, the coating color can be divided into two parts: positive angle color (the majority) and angle color (the minority) Therefore, when matching with general colors, such as titanium cyan, titanium cyan green and quinoa red, these colors become the main colors of the coating 2 Absorbing pearlescent pigment absorbs color, which has both interference color effect and absorption color effect They make the coating color present interference pearlescent color in positive angle of view, and common absorbing color in grazing angle For example, to tune a purple / blue with a positive viewing angle of red, you need to use titanium cyan as the keynote, and then use ultrahigh red light to provide a red with a positive viewing angle The color you get is purple with red If you use super rust red instead of ultrahigh light red, you get brown Because super rust red is made of iron oxide coated mica, the positive angle of view is red, and the grazing angle is brown The red of super rust red positive angle of view provides a high bright red effect for the coating, while its absorption red is mixed with titanium blue, and the blue plus red becomes brown If you want to mix a metallic red, the formula needs a quidao red as the main tone, and then use two different angles (positive angle of view and grazing angle) red of super rust red to strengthen the red effect of the coating The absorption pearlescent pigment is usually used to mix the deep and strong color Its positive angle of view and grazing angle are the same color For example, dark green and metallic red can be adjusted in this way One of the disadvantages of the transparency of the three shade pearlescent pigment is its weak covering power However, we can add some pigments with stronger covering power to the formula There are several ways to improve the covering power in the formula: 1 The pearlescent powder with fine particle size can improve the covering power, but its pearlescent effect is a softer Satin effect, and the flashing effect is not obvious In order to obtain ideal pearlescent effect and covering power, a part of coarse pearlescent powder can be replaced by a part of fine pearlescent powder 2 Based on the opacity of the metal powder, it can also be added to the paint to improve the covering power, such as aluminum Deng, copper powder, etc., usually 5-10% of the pearlescent pigment 3 When mixing dark color, a small amount of carbon black can provide a good covering power, and adding black can improve the pearlescent reflection color 4 When mixing light colors, titanium dioxide is also helpful to improve the covering power However, the pearlescent effect will be weakened, so if you want to use titanium dioxide, you need to use a large amount of pearlescent pigment to enhance the reflected light color, and the amount of titanium dioxide is the least and just enough to cope with the coverage Opaque pigments or dyes reduce the pearlescent effect It is concluded that pearlescent is colorful, with soft satin luster, twinkling star light and metallic luster According to the following three principles, the best pearlescent effect can be achieved: 1 Add appropriate amount of pearlescent pigment to obtain many reflective / transmissive surfaces, so as to produce good pearlescent effect 2 Arrange the pigment chips in parallel orientation to achieve the best specular reflection; 3 The paint film shall be transparent so that the light can enter and leave freely and unobstructed Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,