Nowadays, coatings are used in a wide range of applications in our lives. Many surfaces require a layer of paint to increase the aesthetics and protect objects from wear. However, in the course of use, it often encounters the phenomenon of mildew and deterioration of the paint. What is going on here? Is it possible to use paint preservatives as a perfect solution？

Waterborne pigments are very sensitive to microbial attack. In general, all organic pigments can be used by a variety of bacteria to become a source of carbon and nitrogen for bacteria. In all pigment tests, yellow pigments are most susceptible to microbial degradation due to organic components.

Bacteria are a class of prokaryotic microorganisms. They are a kind of prokaryotic organism with short shape, simple structure and multi-divisional reproduction. It is the most widely distributed organism in the natural world and the main body of natural material circulation. By Bacterial reproduction

Bronopol is a class of high-efficiency, broad-spectrum preservatives with the following distinct advantages: Bronopol at a concentration of ppm can effectively kill bacteria

There are a large number of various microorganisms in the metal working fluid

Modern papermaking mostly uses vegetable fiber cooking and pulping or pulp paper as the main raw material pulping process. Mortar is mainly caused by microorganisms, including filamentous bacteria from water, algae and mold in the air, and a large number of bacteria in waste paper. At the same time, a large number of chemical additives added in paper production, such as: Glues, starches, dyes and fillers are rich in nutrients, which provide abundant food for these microorganisms. In addition, the papermaking process can provide temperature and environment suitable for microbial reproduction, and microorganisms can grow and multiply once they are intervened. When microorganisms grow, they often adhere to the surface of the object (pipes, pool walls, etc. of the slurry process) to form biofilms

Daily chemical products, especially creams and lotions, need to be in contact with the face and skin for a long time.