Coating technology: color matching technology to solve the problem of color difference of powder coating

Core tip: there is often a problem of color difference between batches in the color matching of organic pigment pre dispersion for powder coating, i.e the color matching of powder coating Many companies around the world have made efforts to solve the technical problem, and developed multi oxidation solutions and high-performance products According to experts from China epoxy Industry Association, Merck uses Benda Lutz's new bonding process to bond flake pigments to the surface of dry powder particles without damaging the flake structure of the pigments, which has a high degree of color persistence; Zen gelhard has developed nine kinds of suitable powders Paint knowledge | precautions for wall paint color selection Recommended introduction: when painting the wall, the owner sometimes has difficulty in choosing what color of the wall paint to paint In fact, there is no ugly color in the wall paint, only the disharmonious color matching The use of wall color contains the knowledge of health Too strong color will stimulate people's perception, make people have a sense of fidgety, affect people's mental health Grasp the basic principles of wall color and paint a colorful space 1、 Wall paint color selection notice 1 Light color is generally used for the top surface Light colors make people feel light, dark colors make people feel heavy Usually, the treatment of rooms is from top to bottom, from shallow to deep For example, the ceiling and walls of rooms are white and Home of coatings: there is often a problem of color difference between batches in the color matching of organic pigment pre dispersion for powder coating, that is, the color matching of powder coating Many companies around the world have made efforts to solve the technical problems, and developed multi oxidation solutions and high-performance products According to experts from China epoxy Industry Association, Merck uses Benda Lutz's new bonding process to bond flake pigments to the surface of dry powder particles without damaging the flake structure of the pigments, which has a high degree of color persistence; Zen gelhard develops nine kinds of bright organic pigments for powder coatings; AkzoNobel develops the color matching system for powder coatings It can be rapidly prepared into various luster and hue powder coatings; backer powder coating company has developed a series of powder coatings with the effect of simulating wood texture, which can show the surface pattern of painted wood; cibageigy and Sun Chemical Company have successfully developed the organic pigment pre dispersion, which can better solve the problem of color saturation of light and dark powder coatings The color difference between batches can be reduced and the weighing error can be reduced by using organic Britain material pre dispersion, which is due to the increase of pigment dosage Therefore, it is easy to use white pigment and a small amount of color pigment to mix the color of powder, especially carbon black The high tinting power of the pre dispersion also reduces the amount of chatter used The organic pigment pre dispersion is made by mixing 40-50% water wet filter cake with resin in kneading machine Through a series of processing technology, water is extruded from the surface of pigment and dispersed in polyester with Tg of about 58 ℃, which is suitable for indoor decoration and has good thermal stability It has chemical stability for common powder coating resin and curing agent, uniform pigment particles, and good performance in thin coating and high gloss powder coating In the production of powder coating, intermediate products should be stored as little as possible Based on this idea, akzonobol powder coating company has developed a unique powder coating, which can quickly match colors and provide any color powder coating formula, including ral color, BS color, NCS color and non-standard colors, with a gloss of 20-90% A polyester system without TGIC is adopted This process can be operated automatically and produce qualified products in a short period of time It can provide all kinds of finish with light, satin and flat light Through the use of a unique extinction base material, the flat polyester powder coating can be obtained, and its flatness is much better than the traditional flat polyester powder coating The company plans to build more color matching systems in Europe and around the world 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,