![]() ![]() Many detergent brands are based on a blend of two or more enzymes - sometimes as much as eight different enzymes. A further desirable effect of cellulases is to impart greater softness and improved color brightness of worn cotton surfaces. In this way, particulate soils attached to microfibrils are removed. Cellulases clean indirectly by gently hydrolyzing certain glycosidic bonds in cotton fibers. Enzymes in (heavy-duty) detergents degrade and thereby help solubilize substrate soils attached to fabrics or hard surfaces (e.g., dishes). Anionic surfactants and polymers further increase the repulsive force between the original soil, the enzymatically degraded soil, and the fabric, which prevents the soil from redepositing on the fabric.īuilders act to chelate, precipitate calcium and magnesium components, to provide alkalinity and buffering capacity, and to inhibit corrosion. Surfactants of various kinds help wash liquor to wet fabrics, and they assist in removing various stains by lowering the surface tension at the interface between the wash liquor and the fabric. Stains are removed by mechanical action assisted by enzymes, surfactants, polymers, and builders. Eng.), Ph.D.Īlthough the detailed ingredient lists for detergents vary considerably across geographies and categories, the main detergency mechanisms are similar.
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