Cleaning agents for plastic film washing lines vary depending on the specific application and cleaning requirements. The selection of cleaning agents should comprehensively consider the following aspects: the material of the cleaning object, type of pollution, cleaning effect requirements, environmental impact, etc. The following are several common cleaning agents used in plastic film cleaning lines:
Water: As the most common cleaning medium, it is used to remove dust, dirt and some substances that are not easy to deposit on the surface. For lighter contamination, appropriate water flushing and spraying are usually sufficient. But some stubborn grease, gunk, or organic matter may require the use of other types of cleaners.
Deionized water: Ultrapure water obtained by removing ions and dissolved solid impurities. Deionized water has a low ion content and can be used to clean ion-sensitive plastic films. It effectively removes scale, pigment residues and other inorganic contaminants.
Surfactant: A commonly used cleaning agent with good decontamination capabilities. For plastic films, you can choose nonionic surfactants, such as polyethers or polyoxyethylene ethers (POE). These surfactants improve water’s wetting and dispersing capabilities, helping to remove grease, stickies, and other organic contaminants.
Acidic cleaning agents: Mainly used to remove contaminants such as rust, scale, and inorganic salts. But for plastic films, you need to be particularly careful when using acidic cleaning agents, because they may have a corrosive effect on the plastic material. If you use an acidic cleaner, make sure you choose the right material and the right concentration to avoid damaging the plastic film.
Alkaline cleaning agent: mainly used to remove grease, organic pollutants and some sticky substances. For some alkali-resistant plastic films, you can choose an alkaline cleaning agent of appropriate concentration for cleaning. However, it should be noted that alkaline cleaning agents may have adverse effects on some plastic materials, so material compatibility testing should be performed before use.
It is necessary to select the appropriate cleaning agent according to the specific situation, and use it correctly according to the instructions and safe operation guidelines of the cleaning agent. At the same time, in order to protect the environment and the safety of workers, relevant laws and regulations should be followed and waste cleaning agents should be properly handled and disposed of.
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