Application of Surfactant in Industrial Cleaning Agent


Release time:

2020-06-09

What is industrial cleaning agent
Industrial cleaning agents are mainly used for the cleaning of public facilities and the cleaning of specialized industrial objects, the former corresponds to the civil detergent, while the latter has its particularity. Detergents for public facilities are mainly divided into hard surface manual cleaning agents, hand washing agents, tableware detergents, fabric detergents, etc. Cleaning agents for special industrial purposes are divided into mechanical whole detergents, bottle washing agents, metal cleaning agents, conveyor belt lubrication cleaning agents, etc.
The hard surface cleaning agent in public facilities cleaning agent is mainly to clean the grease, sludge, atmosphere, dust, food and other dirt on the hard surface of the door, wall, glass, fabric, workpiece and other hard surfaces in public places. Such cleaning agents are usually alkaline liquids, some of which contain solvents, such as dipropylene glycol methyl ether. Since hand washing can obtain higher shear force, this type of cleaning agent does not require heavy-duty formulation, and the price of the surfactant used is relatively low, such as the choice to use SLAS. Although amphoteric surfactants provide excellent overall utility in such formulations, they are unacceptably expensive. There are two types of hand-washing agents: one is a water-based hand-washing agent that uses an amphoteric surface-washing agent, and the other is a so-called "waterless" hand-washing agent. The latter may contain water but is solvent-based and generally does not contain two l raw surfactants. Industrial dishwashing detergents are divided into two types: hand washing and machine washing. Hand-washing dishwashing detergent and civilian products have a similar formula, the use of large packaging, generally used in restaurants or hotels. The application of the two surfactants in this type of formulation is consistent with the discussion of the civil dishwashing detergent in Chapter VII. Machine-wash industrial dishwashing detergents require non-foaming surfactants and defoamers, so amphoteric surfactants are not suitable for them. Industrial fabric washing, unlike household laundry, generally requires large capacity equipment to handle large volumes of washed fabrics. Industrial fabric washing generally uses high temperature and strong stirring conditions to deal with the usual heavy soils with strong alkali. SLAS, AED and soaps are typically used as detergents in such formulations, with limited use of amphoteric surface actives.

Used for special industrial cleaning agent and civil detergent is different, the whole cleaning (CIP) refers to the pipeline equipment without disassembly for cleaning, mainly used for beverage, milk, food processing industry. CIP mainly carries out three steps: the first step is the pre-washing cycle, that is, the easy-to-wash adhesive dirt is directly washed with water; the second step is to cycle washing with detergent solution; the third step is to rinse with clean water. The detergent used in the whole cleaning is generally a mixture of caustic soda, sodium gluconate or EDTA, and the surfactant is generally of low foaming or non foaming type, and the application prospect of amphoteric surfactant is not great. Bottle washing agent is very important in the beverage industry, milk industry and wine industry. Its main function is to remove the dirt inside and outside the bottle, make the bottle appearance clean, do not hang water droplets or spots, and make the bottle sterile, especially without pathogens. The bottle washing operation is carried out in a large machine, generally using a spray operation or a combination of immersion/spray operations. In contrast to spray applications in other situations, the bottle washing process does not require foaming, so surfactants are also limited to non-foaming or low-foaming products, and amphoteric surfactants are also not suitable here. Metal cleaning is used in different fields, and different application fields determine the different requirements for cleaning, among which electroplating parts may have the highest requirements for cleanliness. If the lubricant is removed from surfaces that no longer require further finishing, this cleaning requirement is not too high, and the minimum requirement is to remove the scale layer or rust before rolling. Metal cleaning agent can be solvent type, emulsion type or water-based type, the use of spray or immersion can be, acid or alkali type. The current development trend is the transition from solvent-based to water-based, and water-based amphoteric surfactants are often used. The lubrication/cleaning of the conveyor belt plays a very important role in the packaging line, especially in the beverage, milk, and food processing industries. In this special preparation, amphoteric surfactants are often used in combination with soap.
Other types of industrial cleaning agents, such as high-pressure cleaning agents, traffic dirt film removal agents, foam cleaning agents, etc., can use amphoteric surfactants.