Pu Leather Processing Manufacturers Briefly Talk About How To Remove Mildew From Leather!

Leather mildew removal methods can be divided into controlling internal conditions, controlling external environmental factors, and other methods to inhibit or eliminate microorganisms. PU leather processing manufacturers tell you how to prevent leather from mildew.

Methods to prevent mildew:

1. Control elements:

Control internal conditions during the tanning process to eliminate sugar, protein, fat and other nutrients for Aspergillus flavus remaining inside and on the surface of the leather. Without material conditions, Aspergillus flavus is difficult to survive.

2. Control temperature:

Control external environmental factors In addition to nutrients, Aspergillus flavus growth also requires suitable temperature, humidity and pH. Therefore, purifying the air to reduce the number of mold spores; reducing the temperature and humidity of the environment can inhibit the growth of microorganisms.

3. Sterilization method:

1. Fumigation method. The process conditions are very complicated, the cost is high, and the air pollution is serious. It is rarely used now;

2. Radiation source method. This method has a very good effect, but it requires special equipment and has a high one-time investment cost;

3. Add a disinfectant and mildew remover. This mildew removal method is simple to operate and is widely used by leather processing plants.

Types of leather mildew removers:

Currently, the mildew removers used in the leather industry are mainly the following:

1. Inorganic compounds: sodium hypochlorite and salt, sodium chlorite, potassium permanganate solution, iodide, boric acid solution, pyrosulfite, nano-TiO2, nano-SiO2, nano-ZnO, etc.;

2. Organic substances: organic phenols, hydrocarbons, aldehydes, esters, fluorobenzenes, quaternary ammonium salts:, heterocyclic compounds:, organic sulfates;

3. Composite mildew removers: a variety of mildew removers are mixed to achieve better results;