Technical manufacturing process for low-temperature curing amino baking finish

Abstract

The invention discloses a technical manufacturing process for low-temperature curing amino baking finish, which is characterized in that the formula of the low-temperature curing amino baking finish comprises the following raw materials in percentage by weight: 62 to 68 percent of acrylic resin, 20 to 22 percent of amino resin, 0 to 5 percent of dye, 1 to 2 percent of adhesive force promoter, 0.1 to 0.3 percent of leveling agent, 4 to 7 percent of butyl acetate, 2 to 4 percent of diacetone alcohol. The technical manufacturing process comprises the steps of filling the raw materials which are verified to be qualified into a stirring kettle according to a ratio, uniformly dispersing the raw materials by the stirring of a dispersing machine, regulating color, testing performance indexes after color is regulated, filtering if the mixture passes the test, and packaging, wherein when the used amount of the dye is zero, varnish is made, so performance index test can be performed immediately after uniformly stirring and dispersing without regulating color, and the vanish passing the test can be filtered and packaged. When the technical manufacturing process is used, the drying time of the conventional amino baking finish can be reduced greatly, energy cost can be reduced considerably, and the production process is environment-friendly and safe.

Description

technical field [0001] The invention relates to a method for preparing a baking varnish, in particular to a method for manufacturing a low-temperature curing amino baking varnish. Background technique [0002] In the prior art, the drying time of the amino baking varnish used on the surface of metal parts is relatively long, and it generally needs to be dried at 130-150° C. for 30 minutes, and the energy cost is very high. At present, there are also researches on quick-drying amino-based baking varnishes. For example, the patent No. is 200810021672.5, and the Chinese patent titled "Quick-drying amino-based baking varnish and its preparation method" discloses a kind of quick-drying amino-based baking varnish and its preparation method, which includes the following Components: alkyd or acrylic resin, dispersant, pigment, anti-settling agent, polybasic dibasic ester, 582-2 resin, leveling agent, xylene and n-butanol. Although the amino baking varnish made by the technical solu...

AI Technical Summary

Problems solved by technology

Although the amino baking varnish made by the technical solution disclosed in the above patent has shortened the drying time compared with the traditional amino baking varnish, the drying temperature is as high as 170°C, and its components include xylene, which is moderately toxic and also carcinogenic. Therefore, the above-mentioned patents are not clean and environmentally friendly, consume a lot of energy, and are not conducive to the personal safety of operators.