'Information Recommendation' What are the main varieties of auxiliaries in the formula of laundry detergent?

1) Sodium tripolyphosphate (STPP) Sodium tripolyphosphate, also known as pentasodium, is an inorganic adjuvant used in the formula of washing powder. It can be combined with LAS to exert a synergistic effect and greatly improve the washing performance of LAS, so it can be considered that the two are 'golden mistakes'. The role of sodium tripolyphosphate in laundry detergent products is roughly as follows. ①It has the function of stinging heavy metal ions, that is, softening water. It forms a soluble complex with calcium, magnesium, iron and other metal cations dissolved in water, and maintains its inertness to soften the water. Its calcium binding capacity is 158mg CaO/g (20°C) and 113mg CaO/g (90°C). ②Auxiliary effect, or synergistic effect on soap or nominal. ③It has an emulsification effect on oils and fats. ④ It has a peptizing effect on inorganic solid particles. ⑤ It has buffering function for washing powder. ⑥ Supply a certain alkalinity to the washing liquid. ⑦Make powdery synthetic laundry detergent products have good fluidity, no moisture absorption and no caking. In addition to pentasodium, sodium pyrophosphate, potassium pyrophosphate, sodium trimetaphosphate, sodium hexametaphosphate, trisodium phosphate and other phosphates are important and commonly used auxiliaries in washing powder, and their functions are generally similar. Adding certain auxiliaries to the detergent formula can also improve the quality of detergent technology, so the proper addition of sodium tripolyphosphate is a useful effect that contributes to the washing effect.

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