Anti-Soil-Redeposition Agents

Anti-Soil-Redeposition Agents Soil removal is a dynamic process in which suspended soil may be redeposited on the textile as well as removed during the laundering process. Addition of agents with appropriate soil-repelling functional groups inhibits such redeposition. Carboxymethyl- 

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Synonyms Vinylpyrrolidone/acrylic acid copolymer Uses Surface-act. anti-soil redeposition agent in laundry detergents stabilizer for colloidal disps. 

Uses Anti-soil redeposition agent in laundry liq. and powds. shows surf. act. and can stabilize colloidal dispersions forms complexes with dyes and a variety of aromatic compds. forms hard, solv.-resist. films Properties Powd. sol. in water on neutralization (pH > 4.5 or higher) high m.w. Toxicology LD50 (oral) > 5000 mg/kg low toxicity, no skin/eye irritation Gaftex ACP1004 [ISP]... 

Uses Thickener, stabilizer, suspending agent, dispersant and anti-soil redeposition agent in many types of all-purpose liq. detergent thickener in acid-based bowl cleaners, and for stabilization of oxidizing bleaches anti-calcium encrustation agent in dishwashing liq., powds., and tablets Properties Wh., fluffy powd. sol. in water, alcohols, phenols, pyridine, aldehydes, ketones, lactams, etc. low m.w. pH 2-3 (5% aq. sol n.)... 

In a similar vein, Warren ( ) illustrates the often complex interactions between detergent ingredients, temperature, soil, etc., which must be considered for satisfactory cleaning. He specifically examines the effect of various detergent formulations (and silicates) on soil removal and the prevention of soil redepositon in the presence of carboxymethylcellulose ( 5), a widely used anti-redeposition agent. 

Additional ingredients include enzymes, soil anti-redepositioning agents, foam regulators and fragrances. 

Soil anti-redeposition agents are used to avoid depositioning of already dispersed soil on the fabric again. ->Carboxymethyl cellulose and - carboxymethyl starch are effective, especially on cellulosic fabrics (cotton). To have an effect on other fabric-types, combinations of ->car-boxymethyl cellulose and - methylcellulose are contained in d. 

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