The method of stabilization painted bleaching compositions

 

The invention relates to a method of stabilizing insoluble colorant containing hypochlorite compositions intended for bleaching fabrics and hard surfaces. Describes a method of stabilizing insoluble blue dye in the presence of hypokalaemia by a combination of the dye with silicon dioxide or its salt, and at the first stage, carry out the dispersion of dye in the solution containing the salt of silicon dioxide, to obtain the premix dye/Sol of silicon dioxide and in the second stage, carried out mixing the premix with hypogalactia. The method allows to obtain time-stable bleaching compositions, not losing more than 25% of active chlorine after 5 days of storage at 500,5oS. 2 S. and 11 C.p. f-crystals.

Description text in facsimile form (see graphic material)

Claims

1. The method of stabilization of insoluble blue dye in the presence of hypokalaemia by combining the dye with silicon dioxide or its salt, comprising the first stage of the dispersion of dye in the solution containing the salt of silicon dioxide, to obtain the premix cu is where the weight ratio of the salt of silicon dioxide to the dye is of at least 0.5:1.

3. The method of stabilization of insoluble blue dye in the presence of hypokalaemia by combining the dye with silicon dioxide or its salt, where the dye is covered with silicon dioxide.

4. The method according to any of the preceding paragraphs, in which the dye is stable when stored.

5. The method according to any of the preceding paragraphs, in which the combination of insoluble dye and a silicon dioxide or a salt thereof are components containing hypoallegenic composition.

6. The method according to any of the preceding paragraphs, in which hypoallegenic is present in amount of at least 1.5% of the composition.

7. The method according to any of the preceding paragraphs, in which gipogalaktiyu bleach is a hypochlorite bleach.

8. The method according to any of the preceding paragraphs, in which containing hypochlorite composition further comprises a thickening system.

9. The method according to p. 8, in which the thickening system is chosen either from the system, including amphoteric or zwitterionic surfactant and counterion, or from the system, including alkyl or alkoxycarbonyl sulfate and mixtures thereof.

10. The method according to any of the p. 8 or 9, in the cat the>aminoxide,12-18betaine,12-18sulfobetaine and mixtures thereof, and sulphonate counterion.

11. The method according to any of paragraphs.8-10, in which the thickening system comprises a surfactant selected from C16aminoxide, C16betaine and mixtures thereof, and a counterion selected from the group consisting of coolcullen sodium, ecological sodium, toluensulfonate sodium and mixtures thereof.

12. The method according to any of the preceding paragraphs, in which the pH of the composition is from 10 to 14.

13. Whitening composition comprising hypochlorite and insoluble dye, obtained by p. 3.

 

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