Zhengzhou Rainbow Rubber Products Factory Contact: Fengjing Li phone: 15038139303 13613852984 QQ: 284163392 Address: Zhengzhou Zhongyuan District Xisanhuan Ping Wancun six groups http://www.zzhhxjzp.com/ colored rubber rubber products manufacturing method coloring coloring coloring methods are mainly two kinds of surface and mixing. Table surface is sprayed onto the surface of the colorant of rubber products, rubber products colored. The method for static products have a certain effect on the dynamic products, colorants easy to peel, easy to fade. Coloring is the main method of mixing colored rubber, two sub-solution method and mixing method. There are several ways in which the mixing method colored powder, paste colored masterbatch pellets coloring and shading. Coloring solution method is the method by which the rubber is dissolved into a good solvent solution of a certain concentration, then the coloring agents in addition to sulfur outer rubber compounding agent is added to the solution, stirred and mixed uniformly at a certain temperature the solvent was removed by drying, and finally addition of sulfur on the mixing machine. This complex operation coloring methods, coloring agents and with dispersed unevenly, there is color, solvent difficult recovery, pollution of the environment, has been less used. Mixing method is a method of coloring this approach is currently the most commonly used colored rubber products, is the first colorant is added directly or mixed with a carrier plus one rubber compound, mixed by mixing machine, rubber coloring. Specific methods are as follows. This method is a direct coloring dry powdered colorant added along with a small rubber material together in the open mill mixing. The advantage of this method is simple, low cost, but the mixing dust, pollution of the environment, and difficult to disperse evenly, there is color, perfect if particles are too thick, it will result in color dots, stripes or chromatography cross contamination and other quality problems, has been less used. For ease of use, can be powdered colorant and stearic acid, sulfate, etc., and formed into predispersed colorant, the market has been sold. The paste method is a coloring agent with the first liquid colorant (such as a plasticizer) were mixed with a three-roll mill to form a paste or slurry, and then press a certain proportion is added to the rubber kneading. This method avoids dust flying, but also conducive to the colorant dispersed in rubber, color uniformity. But the content of the colorant in low paste, coloring is not high, transport capacity, loss, user inconvenience. Preparation pellets coloring colorant pellets are mainly two. The first method and other powdered ingredients granulation methods, the first powdered colorant infiltration with a surfactant, and then by the wax or the resin melt after the melt extrusion granulation; second method is to use a colorant Surfactant infiltration back via action of mechanical forces colorant grain refiner to prepare a certain concentration of the dispersion, and then mixed with the latex coprecipitation, after drying flaking granulation. Wherein the surfactant is mostly anionic and nonionic, such as fatty acid salts, sulfonates, etc., usually a latex of natural rubber latex. This granular colorants easy to use, good dispersion, no dust, no pollution, bright color, hair color uniformity, no color, is a promising method of coloring. However, the granular colorant preparation process complicated, high cost, limited its wide application. This approach is colored masterbatch first colorants, plasticizers and rubber parts of the other ingredients and raw rubber through the open mill blend concentration of about 50% of the coloring agent masterbatch, then the proportion of adding to colored rubber. This method of fine particles, hard dispersed more effective colorant coloring, hair color uniformity, no color. Note the concentration of the coloring agent masterbatch masterbatch and deduct the amount of time with the other ingredients.