Method for producing color rubber products

Time：2014-10-30 14:19:24    Views：5436

Coloring method of rubber products are mainly surface coloring and mixing coloring two. Surface on the table is a colorant is sprayed to surface of rubber products, rubber products, make coloring. This method has some effect on the dynamic static products, products, colorant, easy stripping, easy to fade. Mixing coloration is at present the main method of rubber coloring, solution method and mixing method two. The mixing method and several methods of dry coloring, paste coloring, coloring and granular masterbatch coloring.

The solution

The method is to use the excellent solvent rubber solution to a certain concentration, and then removal of sulfur colorant and outer rubber compounding agent was added into the solution evenly mixed at a certain temperature drying to remove the solvent, finally in the rubber mixing machine add sulfur. The method of coloring the complex operation, colorants and coordinating agent, dispersing unevenly, color, solvent, pollute the environment, has been less used.

Mixing

This method is most often the rubber coloring, is a colorant is added directly or first mixed with the carrier is added to the rubber compound, by mixing machine mixing, so that the rubber coloring. Specific methods are as follows.

This method of dry coloring is directly to the powder colorant along with small material added in rubber, mixing in the mixing machine. The advantages of this method are simple operation, low cost, but the mixing of dust, pollution of the environment, and is not easy to disperse uniformly, color, if the particle is excellent too thick, can also cause quality problems of color, stripe or chromatography mutual pollution, has been less used. For ease of use, the powder colorant and stearic acid, sulfuric acid and salt together into pre dispersion of colorant, market for sales.

Masterbatch coloring

This method is the first part of coloring agent, plasticizer and rubber other chelating agent and rubber by open mill mixing concentration is about 50% colorant masterbatch, then according to the proportion of added to rubber in the coloring. This method of fine particles, difficult colorant dispersed more effective coloring, hair color uniform, no color difference. Note that the concentration of colorant masterbatch masterbatch and deducting other complexing agent with the amount of time.