Wet wipes, as a convenient cleaning product, are widely used in personal care, household cleaning, and medical disinfection. Their working principle is primarily based on the synergistic effect of physical wiping and chemical solvents. Cleaning or disinfecting ingredients are carried through a moistened non-woven fabric substrate, effectively removing stains, grease, and microorganisms.
From a physical perspective, the cleaning process of wet wipes relies on mechanical friction. Non-woven fabrics are typically made of polyester, wood pulp, or a blend of fibers. They possess the appropriate softness and strength to adhere to surfaces while removing particles and loose dirt during wiping. Moisture acts as a lubricant during wiping, reducing scratches and helping to dissolve water-soluble stains such as dust and sugar residue.
The chemical cleaning mechanism relies on the active ingredients added to wet wipes. Standard wet wipes typically contain surfactants, such as sodium alkylbenzene sulfonate. These compounds reduce the surface tension of water, emulsifying grease and dirt and dispersing them, making them easier to wipe away. Wet wipes for specialized uses (such as baby wipes or disinfectant wipes) may contain antiseptics (such as alcohol and benzalkonium chloride) or skin-protecting ingredients (such as glycerin and aloe vera extract). Alcohol-based wipes achieve rapid disinfection by denaturing microbial proteins, while quaternary ammonium compounds work by disrupting bacterial cell membranes.
In addition, wet wipes retain their moisture retention thanks to humectants (such as propylene glycol), preventing rapid evaporation and ensuring the active ingredients remain active during storage and use. Some wipes are individually packaged to isolate them from air and prolong their antibacterial effectiveness.
In summary, wet wipes achieve their cleaning or disinfecting functions through the synergistic action of physical wiping and chemical solvents. Designed to balance efficiency and safety, they have become an indispensable hygiene tool in modern life.