DE2020968C3 - Bactericide soap - Google Patents

Description

CH = CH

CH = CH

SO ₃ X

in which X represents an alkali metal ion and b) 0.1 to 5% by weight of 2-hydroxy-2 ', 4,4'-trichlorodiphenyl ether.

2. Composition according to claim 1, characterized in that it, based on the amount of soap, 0.01 to 5 % By weight of reducing agents, 0.05 to 0.5% by weight of the optical brightener and 0.5 to 2% by weight Contain 2-hydroxy-2 ', 4,4'-trichlorodiphenyl ether.

3. Composition according to claim 1 and 2, characterized in that it is up to 2 wt .-% Alkali metal salts of complexing agents SO ₃ X

Contain aminopolycarboxylic acids and / or polyphosphonic acids.

4. Composition according to claim 3, characterized in that the complexing agent from the alkali metal salts of ethylenediaminotetraacetic acid and / or the aminotri (methylenephosphonic acid) exist.

5. Composition according to claim 1 to 4, characterized in that the reducing agent from the Sodium or potassium salts of sulphurous acid consist.

It is known that bactericidal active ingredients, in particular halogenated derivatives of phenols, salicylic acid anilides, carbanilides and diphenylmethanes, have the undesirable property of causing yellow to brownish discolouration in soap bars. One already has tries to look at such soaps by adding them of complexing agents and reducing agents, but only with moderate success. It is also known. Add optical brighteners to soaps to improve color. Like a re-examination has shown, however, occurs with the simultaneous presence of bactericidal active ingredients in the oversized In the majority of cases, the fluorescence is extinguished to a large extent or completely, so that the brighteners become

CH = CH-

remain unscrupulous. It was now a bactericide and optical brightener

ίο found soap containing the aforementioned Does not have disadvantages. The invention relates to light-colored, fatty acid alkali metal soaps with a Content of bactericidal active substances and at least one reducing agent from the class of hydrazine, Hydroxylamine and the alkali metal salts of oxo acids of dibasic to tetravalent sulfur, characterized by an amount of soap related salary a) 0.001 to 1% by weight of an optical brightener formula

<■

so, x

in which X represents an alkali metal ion and

b) 0.1 to 5% by weight of 2-hydroxy-2 ', 4,4'-trichlorodiphenyl ether.

The content of reducing agents in the soaps should preferably be 0.01 to 5% by weight and optical Brighteners are 0.05 to 0.5% by weight and of 2-hydroxy-2 ', 4,4'-trichlorodiphenyl ether 0.5 to 2% by weight.

Suitable reducing agents, in addition to hydrazine and hydroxylamine, are expediently as salts sulfuric acid or hydrochloric acid are used, the sodium or potassium salts of oxo acids of divalent and tetravalent sulfur, such as sodium sulfite or sodium pyrosulfite, sodium di-ihionite, sodium sulfoxylate and sodium thiosulfate as well the corresponding potassium salts. Preferably sulfites or pyrosulfites are used.

The soaps are the sodium or potassium salts of 8 to 20, preferably 12 to 18, carbon atoms containing fatty acids of natural or synthetic origin and their mixtures with resin soaps in FraKe. Examples of this are made from coconut or tallow fat

SO ₃ X

soaps derived from acids. Soaps that are different from the fatty acids in olive oil, palm kernel oil, so derive tall oil, soybean oil, cottonseed oil, peanut oil or sunflower oil, the unsaturated portion contained in these fatty acids possibly partially or can be fully hydrogenated. Also suitable are soaps made from carboxylic acids which are produced by paraffin oxidation or oxosynthesis are available. Mixtures of soaps from different origins can also be used.

In a preferred embodiment, contain Soaps still have a complexing effect. These include the alkali metal salts of ho nitrilotriacetic acid,

Ethylenediaminetetraacetic acid, Diethylenetriaminepentaacetic acid, l-hydroxyethane-i.l-diphosphonic acid, Aminotri (methylenephosphonic acid), Ethylenediaminetetra- (methylenephosphonic acid),

Methylenediphosphonic acid, Ethylene diphosphonic acid as well as the higher homologues of the amino

polycarboxylic acids and phosphonic acids. Their amount can be up to i%, preferably 0.05 to 0.5% by weight, based on the amount of soap. By using the aforementioned complexing agents or their mixture, the resistance of the soaps to undesired changes in color or smell improved

The soaps can contain other common ingredients. These include superfatting agents, Skin protection substances and binders, in particular free fatty acids, fatty alcohols, lanolin and fatty acid mono- and dialkylolamides, also protein hydrolysates, starch derivatives, cellulose glycolates and polyglycols. Colorants, fragrances and opacifiers can also be present.

The soaps can be in the form of pieces, bars, sticks, noodles or flakes or as a cream, for example ak Shaving cream., Are present and manufactured and processed by any conventional method. Appropriately one proceeds so that one soap chips with the optical brightener, the bactericid, and the other additives are intimately mixed and with the help of pilier devices or extrusion presses in the desired Form transferred.

The soaps according to the invention are distinguished by a light color, good bactericidal effectiveness and a high resistance to color or odor deterioration during storage and des Usage

Examples

In the following examples, a mixture consisting of 80% sodium tallow soap and 20% sodium coconut soap was used. The soap, which was in the form of flakes and had a water content of 20%, was mixed with the additives, shaped in an extruder and pressed into pieces. The optical brightener added was in the form of a sodium salt. The color values of the soap bars were determined with the aid of a photometer using standardized color filters and the color value proportions χ and y in the CIE standard color table were calculated from them.

ίο The measurement was after five days of storage under a light source similar to daylight repeated

The composition of the bars of soap, the results of the measurement and those perceptible to the eye Color changes are given in the table below. The percentages mean percentages by weight In the “Complexing Agent” column, the abbreviation EDTA means the sodium salt of ethylenediaminetetraacetic acid and HDPA, the sodium salt of 1-hydroxy-1,1-diphosphonic acid. In example 14 was a mixture of the two complexing agents is used.

The comparative samples A and B contained no optical brightener, while in the comparative sample C the reducing agent was missing. In Comparative Samples D and E, the compounds labeled ") were has been replaced by other common substances, namely in this case the optical brightener consisted of the disodium salt of bis [(4-anilino-6-morpholino) -striazinyl] -4,4'-diaminostilbene-2,2'-disulfonic acid and the bactericide from S.S ^ '- tribromosalicylanilide. All Comparative samples were both immediately after manufacture and after the five day exposure darker in color than the pieces assembled according to the invention.

Example table Brightener

Bactc reducing agent ricid

Complexing agents

Color value proportions

after Manufacturing

after 5 layers exposure

Color change after exposure to days

1 0.02 1.0 0.2 VoNa-SuIfIt

2 0.04 1.0 0.2% Na sulfite

3 0.03 1.0 0.2% Na pyrosulfite

4 0.03 1.0 0.02% Na sulfite

5 0.03 1.0 1% Na sulfite

6 0.03 1.0 2% Na sulfite

7 0.03 0.5 0.5% Na sulfite

8 0.03 0.5 0.5% Na pyrosulfite

9 0.03 0.5 0.5% dithionite

10 0.03 0.5 0.5% thiosulfate

11 0.03 0.5 0.5% hydrazine sulfate

12 0.01 0.5 1% Na sulfite

13 0.03 0.5 0.5% Na sulfite

14 0.05 1.0 0.5% Na sulfite

0.23% EDTA 0.312 0.340 0.330 0.338 light to yellowish

0.27% EDTA 0.320 0.324 0.330 0.338 light to yellowish

0.27% EDTA 0.321 0.322 0.332 0.342 light to yellowish

0.325 0.325 0.345 0.352 light to yellow

0.54% EDTA 0.319 0.318 0.329 0.337 unchanged light

0.27% EDTA 0.318 0.318 0.323 0.338 unchanged healing

0.27% EDTA 0.318 0.320 0.325 0.334 unchanged light

0.27% EDTA 0.319 0.325 0.326 0.336 unchanged bright

0.27% EDTA 0.320 0.332 0.325 0.342 light to yellowish

0.27% EDTA 0.330 0.336 0.340 0.348 light to yellow

0.27% EDTA 0.331 0.335 0.337 0.340 light to yellowish

0.54% EDTA 0.325 0.320 0.329 0.335 unchanged bright

0.3% HDPA 0.324 0.319 0.330 0.334 unchanged bright

0.27% EDTA 0.318 0.318 0.324 0.334 unchanged light
0.3% HDPA

A. - 0.5 - Na-SuIfU - E UTA 0.353 0.368 0.377 0.372 yellow to red-brown B. - 0.5 0.2% 0.27% 0.344 0.360 0.345 0.360 unchanged yellow C. 0.03 0.5 - Na-SuIIIt - EDTA 0.327 0.336 0.374 0.357 light to red-brown D. 0.03 *) 0.5 0.2% Na sulfite 0.27% 0.350 0.362 0.375 0.365 yellow to red-brown E. 0.03 0.5 *) 0.2% 0.340 0.355 0.345 0.360 unchanged yellow

Claims (1)

Patent claims: 1. Light-colored, fatty acid alkali metal soaps with a content of bactericidal agents and at least one reducing agent from the class of hydrazine, hydroxyl aromatic and the alkali metal salts of oxo acids of the bivalent bis tetravalent sulfur, characterized by a content related to the amount of soap at a) 0.001 to 1% by weight of an optical brightener the formula