Improvements relating to bleaching compositions

Details Improvements relating to bleaching compositions Improvements relating to bleaching compositions

C - Chemistry, Metallurgy

11

D

C11D 3/06 (2006.01) C11D 3/33 (2006.01) C11D 3/36 (2006.01) C11D 3/39 (2006.01)

Patent

CA 2255809

The invention relates to an aqueous bleaching composition of pH 1-3 which comprises: a) 0.1-15 w.t.% surfactant; b) 3-15 w.t.% hydrogen peroxide or a source thereof; c) 0.5-10 w.t.% disodium dihydrogen pyrophosphate; d) 0.1-3 w.t.% of at least one metal ion complexing agent other than (c); and e) 0.01-1 w.t.% perfume. The invention also provides a process for removing stains from textile articles which comprises the step of treating the articles with a composition as described above.

L'invention concerne une composition de blanchiment aqueuse dont le pH se situe entre 1 et 3. Cette composition comprend (a) 0,1 à 15 % en poids de tensio-actif; (b) 3 à 15 % en poids de peroxyde d'hydrogène ou d'une source de ce dernier; (c) 0,5 à 10 % en poids de disodium dihydrogène pyrophosphate; (d) 0,1 à 1 % en poids d'au moins un agent complexant d'ions métalliques autre que (c); et (e) 0,01 à 1 % en poids de parfum. L'invention concerne aussi un procédé pour enlever les tâches sur des articles textiles, qui consiste à traiter les articles avec une composition susmentionnée.

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