CS243296B1 - Detergent with oxidizing and bleaching efficiency - Google Patents

Abstract

Detergent with oxidizing, bleaching and disinfecting efficiency as low as 25 ° C contains surfactants, fillers, softeners, fragrance and other substances surface an active alkyl or activator alkenyl succinic anhydrides. Detergent containing the activator has good oxidation, bleaching and disinfecting ability.

Description

(54) Detergent with oxidative-bleaching efficiency

2

Detergent with oxidizing, bleaching and disinfectant efficiency from 25 ° C, which contains, together with surfactants, fillers, softeners, fragrances and other substances, an alkyl or alkenyl succinic anhydride surfactant. Detergent containing activator has good oxidizing, bleaching and disinfecting properties.

BACKGROUND OF THE INVENTION The present invention relates to an oxidation-bleaching detergent composition comprising a surfactant activator of a peroxy compound.

Conventional detergents contain 15 to 25% peroxygen compound, usually sodium perborate or percarbonate, as a bleach component. These peroxy compounds in solution release hydrogen peroxide, which acts as the bleaching agent itself. Said compositions have an optimum bleaching efficiency at 90 ° C. However, if the detergent composition comprises a peroxy compound activator, the detergent composition already has a bleaching effect from as low as 25 ° C. Also at a temperature of 90 ° C at a content of 1 to 6% sodium perborate, which is in an optimal ratio with a suitable activator, a higher bleaching effect is achieved than with a conventional bleaching composition containing 15 to 25% sodium perborate.

Existing commercial formulations contain tetraacethylenediamine as an activator (NSR 2,816,174), which is relatively expensive and therefore ranges from 2 to 3%, with a sodium perborate content of 8 to 20%. Tetraacetylglycoluril (NSR 1770 854), which has a good activating ability is too expensive for practical use, furthermore acylated carbohydrates such as pentaacetlyglucose (Japanese patents 8,027,333, 8,021,467) and organic acid anhydrides such as phthalic anhydride also have a good activating ability (U.S. Pat. No. 3,979,313) 4,008,167], N-acylimides of organic acids, for example N-acetylphthalimide (U.S. Patent 3,969,257 J.

Reaction of the above activators with a peroxy compound produces a peroxy compound which is an oxidizing agent in the oxidation-bleaching process. The remaining part of the activator molecule has no other function after the release of the peracid. Also, the peracid, when converted to an acid in the oxidation process, has no other function in the wash solution. The peroxyacid concentration in the wash solution is isotropic, although it would be optimal for the highest peracid concentration to be at the phase boundary, e.g. The activator-peroxy compound ratio, which cannot be arbitrary, also affects the bleaching effect achieved.

The above-mentioned disadvantages do not have a detergent with an oxidation-bleaching efficiency from 25 ° C, which contains, in addition to surfactants, fillers, softeners and other substances, a peroxygen compound, characterized in that it contains 0.8 to 18% of a peroxygen activator of formula I

in which it denotes

R is an alkyl or alkenyl radical having a carbon number of 6 to 22, the particle size of which is 0.1 to 3.5 mm.

An advantage of the detergent composition of the invention is that it has a high oxidizing, bleaching and preserving oxidative-bleaching properties upon storage. It is also an advantage that the reaction of the activator with the peroxy compound produces a surfactant peracid whose concentration is not isotropic in solution. The maximum concentration of this acid is at the phase boundary, e.g. on the surface of the scoured fiber. A further advantage is that after peracids have been converted to alkyl succinic acid (or alkenylsuccinic acid), it further acts as a surfactant in solution in the solution. This acid also functions as a calcium soap dispersant in solution. An advantage of the detergent composition according to the invention is that it exhibits an oxidative-bleaching effect from as low as 25 [deg.] C. and these effects are achieved by several times less peroxo compound, usually sodium perborate or percarbonate. The efficacy of the composition of the invention with a composition comprising tetraacetyl glycoluril (which is usually used as a comparative standard), tetraacetylethylenediamine and pentaacetylglucose. However, the detergency of the detergent composition of the present invention is higher because, as mentioned above, the compounds formed during the wash of the activator are surfactants.

Table 1

Bleaching ability Optical remission canvas sensitive to oxidative bleaching

Washing ability Optical remission

The composition of Example 1

The composition of Example 2

The composition of Example 3

The composition of Example 1, containing the same amount of tetraacetyl glycoluril instead of dodecyl succinic anhydride

The composition of Example 1 without activator

The canvas sensitive to oxidative bleaching was bleached with greens sensitive to oxidative bleaching.

Washing ability:

the canvas was artificially soiled with ordinary dirt from fat, pigment, etc.

The tests were performed at a bath temperature of 50 ° C, a time of 30 min., A bath length of 1:50, a detergent concentration of 5 g / l.

The detergent composition according to the invention is produced in a conventional manner. The detergent according to the invention can be used for soaking, prewashing and washing.

All composition data are in% by weight. and weight ratios.

The composition and manufacture of the detergent compositions of the present invention are illustrated in more detail in the following examples. Examples

Example 1

Detergent for washing at 60 ° C has the following composition: sodium dodecylbenzenesulfonate 6%, non-ionic surfactant based on oxyethylated fatty alcohol 6%, sodium higher fatty acid soap 3 ° / o, sodium tripolyphosphate 39 ° / o, sodium sulfate 24 ° / o, sodium silicate (S1O2: Na2O, 2: 1) 4%, carboxymethylcellulose, perfume and optical brightener 2 ° / o, residue29 42

39

45

35

34% water, sodium perborate 5% and dodecyl succinic anhydride with a particle diameter of 0.5 to 1.5 mm 8%.

Example 2

Detergent for washing at 60-90 ° C has the following composition: sodium alkylbenzenesulfonate 6 ° / o, nonionic surfactant based on oxyethylated monoethanolamides of higher fatty acids 3%, sodium soap of higher fatty acids 3%, sodium tripolyphosphate 30 ° / o, silicate sodium (S1O2: Na2O, 2: 1) 10 ° / o, carboxymethylcellulose, perfume and optical brightener 2%, residual water 4%, sodium percarbonate 2%, 2-hexadecenylsuccinic anhydride with particle diameter 0.4 to 1.6 mm 4 5 percent, the remainder to 100% being sodium sulfate.

Example 3

Detergent for mixed and synthetic fabrics for washing at temperatures up to 60 ° C has the following composition: nonionic surfactant 9%, sodium soap of higher fatty acids 4%, sodium tripolyphosphate 36%, sodium silicate (SiO2: Na2O, 2: 1) 5 ° carboxymethylcellulose, perfume and optical brightener 1.5%, residual water 4.5%, sodium perborate 7%, decylsuccinic anhydride with a particle diameter of 0.6 to 1.8 mm 12%, the remainder to 100% being sodium sulfate.

Claims (1)

SUBJECT Detergent having an oxidation-bleaching efficiency of from 25 ° C, containing in addition to surfactants, fillers, emollients and other peroxy compounds, characterized in that it contains from 0.8 to 18% per activator of peroxy compounds of the formula I of the invention R is an alkyl or alkenyl radical having a carbon number of 6 to 22, the particle size of which is 0.1 to 3.5 mm. tavoroirafla, n. p., xivod 7, Most Csna 2,40 KCs