Teach you how to clean up the color printing board correctly
Most of the coatings can be used as solid lubricants and meet the lubrication requirements of most forming processes. Some coatings can improve the lubricity of coatings by adjusting the formulation. If the lubricity of the coating is insufficient, the lubricity can be improved by applying oil, waxing and covering with peelable protective film. However, attention should be paid to the simple absorption of dirt by the wet lubricant, which should be removed before the device. The strippable protective film should also be removed as soon as possible after construction.
In the process of printing plate cleaning, pay attention to control the concentration and temperature of cleaning solution. If the concentration of the cleaning solution is too low, the surface of the base material is not cleaned cleanly, resulting in defects in the subsequent edge coating treatment, and then affecting the coating quality; if the concentration is too high, the zinc and aluminum contained in the galvanized sheet belong to amphoteric metals, and in the hot alkali solution, the surface of the zinc and aluminum layer simply forms the carboxylate, which forms severe corrosion, and then affects the chemical coating effect at the back.
Chemical cleaning agents generally contain surface active agents, and the best temperature for various surface active agents to play a role is different (what are the methods to prevent the fading of printing boards). If the temperature is too high, the stability of the surfactant will decrease, which will decrease the oil removal ability of the cleaning liquid. If the temperature is too low, the saponification reaction speed is slow, and the oil pollution can not be thoroughly eradicated. At the same time, a lot of bubbles will affect the cleaning effect. In addition, too high temperature of the cleaning solution will accelerate the corrosion of zinc and aluminum layers when adding or subtracting the solution.
Printing board manufacturers to introduce the mechanism of action, advantages and uses of antibacterial color coated board, in order to help you purchase in the future when you have demand.
Antibacterial color coated steel plate, special top coat design can kill Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa and other common bacteria, can avoid the environmental pollution caused by bacteria and mold reproduction, and reduce the impact on human health.
Antibacterial mechanism
The key technology of antibacterial color coated steel plate is that there is silver ion in the top coat.
The specific mechanism is as follows:
1. Interfere with cell wall synthesis. In addition, the cell wall of the cell was damaged by the cross-linking of the polysaccharide and the cell wall.
2. Damage of cell membrane. Cell membrane is an important part of bacterial cell life activity. If cell membrane is damaged or destroyed, it will lead to bacterial death.
3. Inhibit protein synthesis. The process of protein synthesis is changed, stopped and bacteria die.
4. Block the replication of genetic information, including the synthesis of DNA and RNA, and the transcription of mRNA by DNA template.
Purpose: it is mainly used in food and drug purification production workshop. Food and drug industry belongs to the national special supervision industry, which has extremely strict requirements on the sanitary environment of the purification workshop. Unqualified sanitary environment will directly affect the safety of food and drugs.