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What category does laundry detergent belong to?

Laundry detergent belongs to the category of cleaning products and is generally classified as a third-class trademark category. The working principle of laundry detergent is similar to traditional laundry detergent and soap, and the active ingredients are surfactants. The difference is: traditional washing powder and soap use anionic surfactants, mainly sodium alkyl sulfonate and sodium stearate, which are highly alkaline (the PH of washing powder is generally greater than 12), and thus when used It is more irritating and harmful to the skin. The active ingredients of laundry detergent are mainly non-ionic surfactants. Its structure includes a hydrophilic end and a lipophilic end. The lipophilic end combines with stains and then separates the stains from the fabric through physical movement (such as hand rubbing, machine movement). At the same time, surfactants reduce the tension of water, allowing water to reach the surface of the fabric, allowing the active ingredients to work.