Laundry detergent composition and use

Details Laundry detergent composition and use Laundry detergent composition and use

C - Chemistry, Metallurgy

11

D

134/30

C11D 1/12 (2006.01) C11D 3/08 (2006.01) C11D 3/12 (2006.01) C11D 3/20 (2006.01)

Patent

CA 1072853

Abstract of the Disclosure A heavy duty laundry detergent composition, preferably a non- phosphate detergent of improved cleaning power, includes certain proportions of molecular sieve zeolite, preferably partially hydrated type 4A molecular sieve zeolite, sodium carboxy-methyl-oxysuccinate (CMOS), sodium linear higher alkylbenzene sulfonate, higher fatty alcohol polyethoxylate, sodium silicate and anti-redeposition agent. The product has better soil removal properties than those of compositions like it but wherein the CMOS is replaced by sodium tripolyphosphate, sodium citrate or sodium tartrate, and is also superior to similar products wherein the mixture of CMOS and zeolite is re- placed by equal weights of sodium tripolyphosphate, zeolite of CMOS. Usefully detersive products of the invention omit inorganic phosphate builder salt with- out loss of cleaning ability (in fact, some improvement is noted) and contain reduced proportions of molecular sieve zeolite, so as to diminish any problems associated with the deposition of such zeolite on laundry and the resulting objectionable muting of colors of the laundered fabrics. Also described are methods of laundering in which the invented compositions are used.

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