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What is the cleaning effect of scouring process?

Views: 0     Author: Site Editor     Publish Time: 2020-12-18      Origin: Site

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The cleaning effect of the scouring process is very complicated. First of all, the adhesion of waxy saponification and oily substances on the fabric to the fabric is weakened, and the interface is gradually reduced. Under mechanical action, the oil stain is separated from the fabric and emulsified into an oil-water emulsion to prevent it from being stained again. Non-ionic surfactants are often excellent emulsifiers, while anionic surfactants will form an electric double layer on the oil-wax/water interface to prevent oil particles from agglomerating each other, which is conducive to forming a relatively stable emulsion system.

Secondly, it is necessary to quickly disperse the decomposition products of alkali to prevent recontamination. This will take advantage of the dispersing effect of surfactants, and can also use the effect of other inorganic or organic chelating dispersants.

It is difficult for a single type or structure of surfactants to achieve the above effects effectively at the same time, so it is necessary to compound more than two different types and structures of surfactants. The type, structure and composition can be appropriately adjusted to make it have a suitable hydrophilic-lipophilic balance (HLB) to meet the requirements of emulsified oil; large enough micelles and low enough CMC and surface tension. The scouring liquid system maintains excellent wettability, and has excellent emulsification, dispersibility and cleaning performance.

 

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