CH637539A5 - Use of finely divided, water-insoluble alkali metal aluminiumsilicates in hair cleaning compositions, for decreasing the refatting of the hair - Google Patents

Description

637 539

2nd

PATENT CLAIMS

1. Use of finely divided, synthetic, crystallized, bound water-containing, water-insoluble alkali aluminum silicates of the formula

(Kat2 0) x ■ AI2O3 ■ (Si02) y,

in the cat an alkali metal ion, x is a number of 0.7-1.5 and Y is a number of 0.8-6, with a particle size of 1-12 (i, which has a calcium binding capacity of 100-200 mg CaO / g have anhydrous active substance, in an amount of 2-30 wt .-%, based on the total weight of the agent, in hair cleaners to reduce the re-greasing of the hair.

2. Use according to claim 1, characterized in that alkali aluminum silicates are used with rounded corners and edges, the formula

0.7-1.1 Na20 • A1203 • 1.3-3.3 Si02.

3. Use according to claim 1, characterized in that alkali aluminum silicates are used, which of the formula

0.7-1.1 NazO • A1203 • 2.4-3.3 Si02

correspond.

4. Use according to claim 1, characterized in that alkali aluminum silicates are used, which of the formula

0.7-1.1 Na20 • A1203 ■ 3.3-5.3 Si02

correspond.

5. Use according to claim 1, characterized in that alkali aluminum silicates obtainable from calcined kaolin are used, which have the formula

0.7-1.1 Na20 • A1203 • 1.3-2.4 Si02 • 0.5-5.0 H20.

6. Use according to one of the preceding claims in stable liquid suspensions which, in addition to the alkali aluminum silicate, the ethoxylation product of a saturated alcohol having 16-18 C atoms with 1-8 mol of ethylene oxide, preferably 2-7 mol of ethylene oxide, in particular 2-6 mol of ethylene oxide per mole of alcohol, and contain water.

7. Use according to one of the preceding claims in hair cleansing agents, which also 4-30 wt .-%, preferably 5-20 wt .-%, detergent substances in the form of anionic, nonionic or amphoteric surfactants and optionally 0.2-1 wt .-% cationic surfactants, based on the total weight of the agent.

The preceding invention relates to the use of finely divided, synthetic, crystallized, bound water-containing water-insoluble alkali aluminum silicates in hair cleansers to reduce the re-greasing of the hair.

Hair cleansers in liquid or solid form are primarily used for easy hair cleaning.

In addition, however, it is considered desirable if the hair treated with it is given other favorable properties in addition to the required purity. In addition to improving the fullness and feel, improving wet combability, extending the durability of the hairstyle, in particular delaying the regreasing of the hair in order to maintain the aesthetic appearance of the hair over a longer period of time. Attempts have already been made to meet these requirements by adding a wide variety of products, possibly also in the form of aftertreatment agents, but to date no satisfactory solution to the multifaceted problem has been found.

It has now been found that the requirements as a whole, but in particular the demand for a reduction in the regreasing of the hair, can largely be met if finely divided, water-insoluble alkali aluminum silicates are used as the corresponding active ingredient in hair cleaners.

The alkali aluminum silicates to be used according to the invention can be prepared synthetically in a simple manner, e.g. by reaction of water-soluble silicates with water-soluble aluminates in the presence of water. For this purpose, aqueous solutions of the starting materials can be mixed with one another or a component present in the solid state can be reacted with the other component present as an aqueous solution. The desired aluminum silicates are also obtained by mixing the two components present in the solid state in the presence of water. Alkali aluminum silicates can also be produced from Al (OH) 3, A1203 or Si02 by reaction with alkali silicate or aluminate solutions. Finally, such substances also form from the melt, but this process appears to be economically less interesting because of the high melting temperatures required and the need to convert the melt into finely divided products.

The alkali aluminum silicates prepared by precipitation or converted into aqueous suspension in a finely divided state by other processes can be converted from the amorphous to the aged or to the crystalline state by heating to temperatures of 50-200 ° C. The crystalline alkali aluminum silicate present in aqueous suspension can be separated from the remaining aqueous solution by filtration and at temperatures of e.g. Dry 50-800 ° C. Depending on the drying conditions, the product contains more or less bound water. In the usual water-containing shampoo formulations, moist filter cakes or free-flowing suspensions of the alkali aluminum silicates can be assumed.

The precipitation conditions can already contribute to the formation of the required small particle sizes of 1-12 (i), whereby the mixed aluminum and silicate solutions - which can also be fed into the reaction vessel at the same time - are exposed to strong shear forces by For example, the suspension is stirred intensively. If crystallized alkali aluminum silicates are produced - these are used according to the invention - the formation of large, possibly penetrating crystals is prevented by slowly stirring the crystallizing mass.

Nevertheless, undesirable agglomeration of crystal particles can occur during drying, so that it is advisable to use these secondary particles in a suitable manner, e.g. by air sighting. Alkaline aluminum silicates obtained in the coarser state, which have been ground to the desired grain size, can also be used5

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turn. For this purpose, z. B. mills and / or Winsich-ter or their combinations.

In addition to the sharp-edged alkali aluminum silicates of the composition mentioned, products according to the invention in which the alkali aluminum silicate crystallites have rounded corners and edges can also be used according to the invention. These are specifically synthetically produced crystalline alkali aluminum silicates of the composition

0.7-1.1 Kat2 O • A1203 • 1.3-3.3 Si02,

in the cat represents an alkali application, preferably a sodium cation.

If you want to produce the alkali aluminum silicates with rounded corners and edges, it is advantageous to start from an approach whose molar composition is preferably in the range

2.5-6.0 Cat2 O ■ A1203 • 0.5-5.0 Si02 • 60-200 HzO

is, where Kat2 has the meaning given above and in particular means the sodium ion. This approach can be brought to crystallization in the usual way. This is advantageously done by heating the batch to 70-120 ° C., preferably to 80-95 ° C., with stirring, for at least 6 hours. The crystalline product can be isolated in a simple manner by separating the liquid phase. If necessary, it is advisable to wash and dry the products with water before further processing. Even when working with an approach, the composition of which differs little from that specified above, products with rounded corners and edges are still obtained, especially if the deviation relates only to one of the four concentration parameters specified above.

Furthermore, according to the invention, it is also possible to use finely divided, water-insoluble alkali aluminum silicates which have been precipitated and aged or crystallized in the presence of water-soluble inorganic or organic dispersants. Products of this type are accessible in a technically simpler manner, since the aluminate and silicate solutions mixed with one another no longer have to be exposed to strong shear forces, as a result of which the considerable energy expenditure required for this is eliminated, as is the grinding and air sifting of the dry product. Suitable water-soluble organic dispersants are surfactants, non-surfactant-like aromatic sulfonic acids and compounds with complex formation capacity for calcium. The dispersants mentioned can be introduced into the reaction mixture in any manner before or during the precipitation. B. submitted as a solution or dissolved in the aluminate and / or silicate solution. Particularly good effects are achieved when the dispersant is dissolved in the silicate solution. The amount of the dispersant should be at least 0.05% by weight, preferably 0.1-5% by weight, based on the total amount of precipitation. For aging or crystallization, the precipitate is z. B. '/ heated to temperatures of 50-200 ° C for 2-24 hour (s). From the large number of useful dispersants, some are mentioned below which in no way impair the use of the products in hair cleansers, e.g. Sodium lauryl ether sulfate, sodium polyacrylate, hydroxyethane phosphonate, amino-tris-methylene phosphonate and others.

As already indicated above, liquid suspensions of the alkali aluminum silicates can also be used in the manufacture of liquid hair cleaning agents.

Such stable liquid suspensions essentially contain A) finely divided, bound water-containing compounds of the above formula s (Kat2 0) x • A1203 ■ (Si02) y,

in which Kat, x and y have the meanings listed there and B) the ethoxylation product of a saturated alcohol having 16-18 carbon atoms with 1-8 io moles of ethylene oxide per mole of the alcohol, and water. It is preferably an ethoxylation product with 2-7, in particular with 2-6 moles of ethylene oxide per mole of the alcohol; it is particularly expedient to use derivatives of straight-chain alcohols. However, derivatives of branched-chain alcohols, in particular alcohols prepared by oxosynthesis, can also be used.

The ethoxylation products used to stabilize the suspension are generally not chemically uniform compounds, but rather usually 20 mixtures in which adducts of different degrees of ethoxylation are present side by side in statistical distribution - including the degree of ethoxylation «zero», which is usually still in small amounts present non-ethoxylated starting material is present. The Äth-25 oxylation products used are practically water-insoluble compounds, their cloud point - determined according to DIN 53917 in aqueous butyl diglycol solution - is usually in the range of 55-85 ° C. Typical, preferably used products are saturated fatty alcohol ethoxylation products derived from tallow fatty acids, which, with a degree of ethoxylation of 2.4, 5 or 7 moles of ethylene oxide, have cloud points of 58, 71.77 or 83 ° C. per mole of the fatty alcohol.

The C16_18 alcohol component is usually a technical mixture, in which alcohols with more and / or fewer carbon atoms - usually in minor amounts of e.g. up to 15% - may be present.

The amount of the ethoxylation product to be used depends essentially on the desired degree of stabilization of the suspension. In general, the concentration of the suspensions on the special ethoxylation products is about 0.5% by weight or more, based on the total weight of the aqueous suspension, preferably in the range of about 1-4% by weight. The concentration of eth-45 oxylation products can also be higher. In this way, concentrations of e.g. 6 wt .-% and more may be appropriate. In most cases, however, the concentration is expediently around 1.3-3% by weight. The usable aqueous suspensions of alkali aluminum 5o niumsilikaten essentially consist of at least 20 wt .-% of component A), at least about 0.5 wt.::% Of component B), and water. Preferred concentrations of the suspensions of alkali aluminum silicates are in the range between about 25 and 40% by weight, in particular between about 28 and 38% by weight, based on the weight of the suspension.

The suspensions can be prepared by simply mixing their components, the alkali aluminum silicates e.g. as such or already moist or in aqueous suspension - if appropriate from the production point of view - can be used. It is particularly advantageous to produce the alkali aluminum silicates which are still moist, e.g. as a filter cake - in a preferably heated - z. B. at 70 ° C - dispersion of the ethoxylation 65 product in water. However, it is of course also possible to use dried, i.e. Alkali aluminum silicates freed from adhering water and still containing water can be used.

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4th

A particular variant of the crystal structure of the alkali aluminum silicates to be used according to the invention are compounds of the formula

0.7-1.1 Na20 • A1203 • 2.4-3.3 Si02

There are no differences from the other alkali aluminum silicates mentioned in the possibility of use in hair cleansing agents to reduce the re-greasing of the hair.

A further variant of the finely divided, water-insoluble alkali aluminum silicates to be used according to the invention are compounds of the formula

0.7-1.1 Na20 • A1203 • 3.3-5.3 Si02

If you want to manufacture such products, it is advantageous to start with an approach whose molar composition is preferably in the range

2.5-4.5 Na20; A1203; 3.5-6.5 Si02; 50-110 H20

lies. This approach can be brought to crystallization in the usual way. This is advantageously done by heating the batch to 100-200 ° C., preferably to 130-160 ° C., with vigorous stirring for at least 6 hours. The crystalline product can be isolated in a simple manner by separating the liquid phase. If necessary, it is advisable to wash the products with water before further processing and to dry them at 20-200 ° C. The products dried in this way still contain bound water. If the products are produced in the manner described, very fine crystallites are obtained which form spherical particles, possibly hollow spheres of 1 to 4 p. Store the diameter together.

Alkali aluminum silicates which can be prepared from calcined (destructured) kaolin by hydrothermal treatment with aqueous alkali hydroxide are also suitable for the use according to the invention in hair cleaning compositions. The formula comes to the products

0.7-1.1 Kat2 O • A1203 • 1.3-2.4 Si02 • 0.5-5.0 H20

to, where Kat is an alkali metal cation, in particular a sodium cation. The production of the alkali aluminum silicates from calcined kaolin leads directly to a very finely divided product without any special technical effort. The hydrothermal treatment of the kaolin previously calcined at 500 to 800 C with aqueous alkali metal hydroxide can be carried out at 50 to 100 ° C. The crystallization reaction taking place is generally complete after 0.5-3 hour (s).

Marketable, slurried kaolins that can be used as the starting material for the production of the alkali aluminum silicates mainly consist of the clay mineral kaolinite with the approximate composition A1203 • 2 Si02 • 2 H20, which has a layer structure. In order to obtain the alkali aluminum silicates to be used according to the invention by hydrothermal treatment with alkali hydroxide, the kaolin must first be destroyed, which is most conveniently carried out by heating the kaolin to temperatures of 500 to 800 C for two to four hours. The x-ray-amorphous water-free metakaolin is formed from the kaolin. In addition to calcining, the kaolin can also be destroyed by mechanical treatment (grinding) or by acid treatment.

The kaolins that can be used as starting material are light powders of great purity; however, their iron content of 2000 to 10,000 ppm Fe is considerably higher than the values of 20 to 100 ppm Fe in the case of the alkali aluminum silicates produced by precipitation from alkali silicate and alkali aluminate solutions. This higher iron content in the alkali aluminum silicates made from kaolin is not a disadvantage when used in hair cleansing agents, since the iron in the form of iron oxide is firmly built into the alkali aluminum silicate grid and is not dissolved out (ppm = part (s) / million parts by weight)

Alkali aluminum silicates which can be used according to the invention can also be prepared from calcined (destructured) kaolin by hydrothermal treatment with aqueous alkali metal hydroxide with the addition of silicon dioxide or a compound providing silicon dioxide. The mixture of alkali aluminum silicates generally obtained varies !; Crystal structure consists of very finely divided crystal particles that have a diameter smaller than 20 p. have and are usually 100% composed of particles smaller than 10 n. In practice, this conversion of the destructured kaolin is preferably carried out using sodium hydroxide solution and water glass. This creates a sodium aluminum silicate J, which has several names in the literature, e.g. B. as molecular sieve 13 X or zeolite NaX (see O. Grubner, P. Jiru and M. Râlek, "Molecular Sieves", Berlin 1968, pp. 32, 85-89), if one takes the approach to hydrothermal Treatment preferably does not stir, possibly introduces low shear energies, and remains at a temperature preferably 10-20 ° C below the boiling temperature (approx. 103 ° C). The conversion reaction can in particular be carried out by stirring the batch, by increasing the temperature (boiling heat at atmospheric pressure or in an autoclave) and by increasing the amount of silicate, i.e. can be influenced by a molar mixture ratio Si02: Na20 of at least 1, in particular 1.0-1.45, such that the sodium aluminum silicate F is formed in addition to or instead of sodium aluminum silicate J. The sodium aluminum silicate F is referred to in the literature as “zeolite P” or “type B” (cf. D.W. Breck, “Zeolite Molecular Sieves”, New York 1974, p. 72). The sodium aluminum silicate F is in the form of crystallites appearing spherical on the outside. In general, the production conditions for sodium aluminum silicate F and for mixtures of J and F are less critical than those for a pure crystal type A.

The fine-particle, water-insoluble alkali aluminum silicates to be used according to the invention can be formulated in the form of both solid and liquid hair cleansing agents, e.g. as a shampoo tablet, as a powdered dry shampoo, optionally in aerosol form and as a liquid shampoo of the usual type. The liquid shampoo is the preferred embodiment.

In addition to the alkali aluminum silicates present in an amount of 2-30% by weight, preferably 5-25% by weight, based on the shampoo as a whole, the liquid shampoos which are preferably used primarily contain detergent substances in an amount of 4-30% by weight .-%, preferably from 5-20 wt .-%, based on the entire shampoo. The main detergent substances to be used are anionic surfactants, e.g. Alkyl sulfates, alkyl aryl sulfonates, alkyl ether sulfates, alkyl aryl ether sulfates, olefin sulfonates, fatty acid alkylolamide sulfates, sarcosides, protein fatty acid condensation products, alkyl polyglycol ether carboxylic acids, sulfated monoglycerides of longer chain fatty acids, alkyl sulfosuccinates and others. Non-ionic surfactants such as e.g. Fatty alcohol polyglycol ethers, fatty acid polyglycol esters, ox-ethylated amines or ox-ethylated amides as well as tertiary

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Amine oxides or ampholytes such as betaines and sulfobetaines, alkylaminocarboxylic acids, imidazoline derivatives are used. If, in addition, antistatic properties are to be imparted to the hair treated with the hair cleaning agents described, cationic detergent substances in the form of quaternary ammonium compounds in an amount of 0.2-1% by weight, based on the total shampoo, can also be incorporated into the shampoo. The hair cleansing agents can also contain other conventional additives, such as thickening agents, foam improvers and foam stabilizers, agents for adjusting the pH, opacifiers, pearlescent agents, perfume oils, solubilizers for perfume oils, preservatives, anti-dandruff agents, dyes and other auxiliaries.

For example, the production of the alkali aluminum silicates to be used according to the invention is first described, for which no protection is sought here. Percentage concentration data are by weight.

The aluminate solution was mixed with the silicate solution in a vessel with 151 contents with vigorous stirring. Was stirred with a stirrer with a dispersing disc at 3000 revolutions / min. Both solutions were at room temperature. An X-ray amorphous sodium aluminum silicate was formed as the primary precipitation product under an exothermic reaction. After stirring for 10 minutes, the suspension of the precipitate was transferred to a crystallization tank where it remained for 6 hours at 90 ° C. with stirring (250 revolutions / min) for the purpose of crystallization. After the lye had been suctioned off from the crystal slurry and washed with deionized water until the wash water running off had a pH of approximately 10, the filter residue was dried. Instead of the dried sodium aluminum silicates, the suspension of the crystallization product or the crystal slurry was also used to produce the hair cleansing agents. The water contents were determined by heating the pre-dried products at 800 ° C. for one hour. The sodium aluminum silicates, washed or neutralized and then dried to a pH of approx. 10, were then ground in a ball mill. The grain size distribution was determined using a sedimentation balance.

Production conditions for sodium aluminum silicate A

precipitation

2.985 kg aluminate solution of the composition: 17.7% Na? 0.15.8% A1203, 66.6% H20 0.15 kg caustic soda 9.420 kg water

2.445 kg of a 25.8% sodium silicate solution of the composition 1 Na20 ■ 6.0 Si02, freshly prepared from commercially available water glass and slightly alkali-soluble silica

Crystallization

6 hours at 90 ° C drying

For 24 hours at 100 CC composition

0.9 Na20 • 1 A1203 • 2.04 SiO, • 4.3 H, 0 (= 21.6%

H20)

Degree of crystallization fully crystalline.

Calcium binding capacity

170 mg Ca / g active substance.

In the particle size distribution determined by sedimentation analysis, the maximum particle size was found at 3-6 | i.

Production conditions for sodium aluminum silicate B

precipitation

7.63 kg of an aluminate solution of the composition s 13.2% Na20; 8.0% A1203; 78.8% H20;

2.37 kg of a sodium silicate solution of the composition 8.0% Na20; 26.9% SiO 2; 65.1% H20;

Mixing ratio in mol

3.24 Na20; 1.0 A1203; 1.78 Si02; 70.3 H20;

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Crystallization

At 90 ° C for 6 hours;

Drying

At 100 ° C for 24 hours;

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Composition of the dried product

0.99 NazO • 1.00 A1203 • 1.83 Si02 • 4.0 H20; (= 20.9% H20)

Crystal shape

20 cubic with very rounded corners and edges;

average particle diameter 5.4 | i

Calcium binding capacity 25 172 mg / g active substance

Production conditions for the sodium aluminum silicate C

30 precipitation

12.15 kg of an aluminate solution of the composition 14.5% Na20; 5.4% A1203; 80.1% H20;

2.87 kg of a sodium silicate solution with the composition 0.8% Na20; 26.9% SiO 2; 65.1% H20;

35 batch ratio in mol

5.0 Na20; 1.0 A1203; 2.0 Si02; 100 H20;

Crystallization

At 90 ° C for 1 hour;

40

Drying

Hot atomization of a suspension of the washed product (pH 10) at 295 ° C; Fat content of the suspension 46%;

45 Composition of the dried product 0.96 Na20 • 1 A1203 • 1.96 Si02 • 4 H20;

Crystal shape cubic with strongly rounded corners and edges; 50 water content 20.5%;

average particle diameter 5.4 n.

Calcium binding capacity 55 172 mg CaO / g active substance.

Production conditions for the potassium aluminum silicate D The sodium aluminum silicate C was first produced. After sucking off the mother liquor and washing the crystal mass with demineralized water up to pH 10, the filter residue was suspended in 6.11 of a 25% KCl solution. The suspension was briefly heated to 80-90 C; it was then cooled and filtered off and washed again.

Drying

24 hours at 100 "C;

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Composition of the dried product

0.35 Na20 • 0.66 K20 • 1.0 A1203 • 1.96 Si02 • 4.3 H20; (Water content 20.3%)

Manufacturing conditions for sodium aluminum silicate E.

precipitation

0.76 kg aluminate solution of the composition: 36.0% Na20, 59.0% A1203, 5.0% water 0.94 kg caustic soda;

9.49 kg water;

3.94 kg of a commercially available sodium silicate solution of the composition:

8.0% Na20.26.9% SiO2, 65.1% H20;

Crystallization

At 90 ° C for 12 hours;

Drying

At 100 ° C for 12 hours;

composition

0.9 Na20 • 1 A1203 • 3.1 Si02 • 5 H20;

Degree of crystallization fully crystalline.

The maximum particle size was 3-6 (i.

Calcium binding capacity

110 mg CaO / g active substance.

Manufacturing conditions for the sodium aluminum silicate F

precipitation

10.0 kg of an aluminate solution of the composition: 0.84 kg NaA102 + 0.17 kg NaOH + 1.83 kg H2O;

7.16 kg of a sodium silicate solution of the composition 8.0% Na20.26.9% SiO2, 65.1% H20;

Crystallization

4 hours at 150 ° C

Drying

Hot atomization of a 30% suspension of the washed product (pH 10);

Composition of the dried product 0.98 Na20 • 1 A1203 • 4.12 Si02 • 4.9 H20;

The particles are spherical in shape; the ball diameter averages around 3-6 n.

Calcium binding capacity

132 mg CaO / g active substance at 50 ° C.

Manufacturing conditions for the sodium aluminum silicate G

precipitation

7.31 kg aluminate (14.8% Na20.9.2% A1203, 76.0% H20)

2.69 kg of silicate (8.0% NaaO, 26.9% SiO 2, 65.1% H20);

Mixing ratio in mol

3.17 Na20, 1.0 A1203, 1.82 Si02.62.5 H20;

Crystallization

At 90 ° C for 6 hours;

Composition of the dried product

1.11 Na20 • 1 A1203 • 1.89 Si02.3.1 H20 (= 16.4% HzO);

Crystal structure

Structural mixed types in a ratio of 1: 1;

Rounded crystallites;

Average particle diameter

5 5.6 m

Calcium binding capacity

105 mg CaO / g active substance at 50 ° C.

Production conditions for the sodium aluminum silicate H 1 made from kaolin. Destructuring of kaolin. To activate the natural kaolin, samples of 1 kg were heated to 700 ° C in a firebrick crucible for 3 hours. The crystalline kaolin A1203.2 i5 Si02 • 2 H20 was converted into the amorphous metakaolin A1203 • 2 Si02.

2. Hydrothermal treatment of the metakaolin Alkaline solution was placed in a stirred vessel and 20 the calcined kaolin was stirred in at temperatures between 20 and 100 ° C. The suspension was brought to the crystallization temperature of 70 to 100 ° C. with stirring and kept at this temperature until the crystallization process was complete. The mother liquor was then suctioned off and the residue was washed with water until the wash water running off had a pH of 9 to 11. The filter cake was dried and then crushed to a fine powder, or it was ground to remove the agglomerates formed during drying. This grinding process was omitted if the filter residue was processed wet or if the drying was carried out using a spray dryer or a current dryer. The hydrothermal treatment of the calcined kaolin can also be carried out according to a continuous procedure.

approach

1.65 kg calcined kaolin

13.35 kg NaOH 10%, mixing at room temperature;

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Crystallization

At 100 ° C for 2 hours;

Drying

45 for 2 hours at 160 3C in a vacuum drying cabinet;

composition

0.88 Na20 • 1 A1203 • 2.14 Si02 • 3.5 H20 (= 18.1% H20);

50 crystal structure

Structural mixed types like Na aluminum silicate G, however ratio 8: 2.

Average particle diameter 55 7.0 (i.

Calcium binding capacity

126 mg CaO / g active substance.

Production conditions 60 for the sodium aluminum silicate J made from kaolin. The destructuring of the kaolin and the hydrothermal treatment were carried out in an analogous manner to that given for H.

65 approach

2.6 kg calcined kaolin,

7.5 kg NaOH 50 percent,

7.5 kg water glass,

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51.5 kg of deionized water,

Mixing at room temperature;

Crystallization

24 hours at 100 CC without stirring;

Drying

In a vacuum drying cabinet at 160 ° C for 2 hours;

composition

0.93 Na20 • 1 A1203 • 3.60 Si02 • 6.8 H20 (= 24.6% H20);

Crystal structure

Sodium aluminum silicate J) as defined above, cubic crystallites;

Average particle diameter 8.0 (x.

Calcium binding capacity

105 mg CaO / g active substance.

The calcium binding capacity was determined as follows:

1 liter of an aqueous solution containing 0.594 g CaCl2 (= 300 mg CaO / 1 = 30 ° d.H) and brought to pH 10 with dilute NaOH is mixed with 1 g alkali aluminum silicate, based on anhydrous active substance. Then the suspension is stirred vigorously at 22 + 2 ° C for 15 min. After filtering off the alkali aluminum silicate, the residual hardness x of the filtrate is determined. From this, the calcium binding capacity for the alkali aluminum silicate is calculated as (30 - X) • 10 mg CaO / g AS. In some cases the determination was carried out at 50 ± 2 ° C.

The following hair cleansers were made:

Example 1 Liquid Shampoo Sodium Lauryl Ether Sulfate,

20% active washing substance 40.0 parts by weight

Sodium aluminum silicate A 10.0 parts by weight

Sodium chloride 5.0 parts by weight

Perfume 0.5 parts by weight

Water 44.5 parts by weight

Example 2 Liquid Shampoo Mixture of Sulfated Ester of Sulfosuccinic Acid and Fatty Alcohol Ether,

28% active washing substance 30.0 parts by weight

Fatty alcohol polyglycol ether 5.0 parts by weight

Coconut fatty acid diethanolamide 5.0 parts by weight

Sodium aluminum silicate E 10.0 parts by weight

Perfume 0.5 parts by weight

Water 49.5 parts by weight

Example 3 Liquid shampoo oleyl acetyl alcohol + approx. 5 mol

Ethylene oxide 10.0 parts by weight of coconut fatty amine derivative with betaine structure

about 30% active washing substance 20.0 parts by weight

Sodium aluminum silicate B 25.0 parts by weight

Perfume 0.5 parts by weight

Water 44.5 parts by weight

Example 4 Liquid Shampoo Sodium Lauryl Ether Sulfate Approx.

28% active washing substance 30.0 parts by weight

Methyl cellulose, 2 percent solution 40.0 parts by weight

Coconut fatty acid diethanolamide potassium aluminum silicate D perfume water

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Example 5 Liquid Shampoo Oleylcetyl Alcohol + Approx. 5 Mol Ethylene Oxide IO Fatty Alcohol Polyglycol Ether Cetyltrimethylammonium Chloride,

25 percent solution of oleic acid diethanolamide sodium aluminum silicate C i5 perfume water

Example 6 Liquid Shampoo 20 Sodium Lauryl Sulfate, 25-28%

Active detergent sodium lauryl ether sulfate, 28%

Active detergent

Lauric acid isopropanolamide 90 percent 25 coconut fatty acid monoethanol amide 95 percent ethylene glycol stearate fatty alcohol polyglycol ether sodium aluminum silicate E 30 perfume water

Example 7 Liquid shampoo

35 sodium lauryl sulfate 90 percent 15.0 parts by weight of hydroxyethyl cellulose 2 percent

Solution 35.0 parts by weight

Coconut fatty acid diethanolamide 2.0 parts by weight

Sodium aluminum silicate G 5.0 parts by weight

40 perfume 0.5 parts by weight

Water 42.5 parts by weight

3.0 parts by weight 15.0 parts by weight 0.5 parts by weight 11.5 parts by weight

10.0 parts by weight 15.0 parts by weight

2.0 parts by weight 5.0 parts by weight 5.0 parts by weight 0.5 parts by weight 62.5 parts by weight

12.0 parts by weight

12.0 parts by weight 1.0 part by weight

1.0 part by weight 2.0 parts by weight 1.0 part by weight 12.0 parts by weight 0.5 part by weight 58.5 parts by weight

Example 8 Liquid Shampoo 45 Sodium Lauryl Sulfate 28-30% Active Detergent

Sodium lauryl ether sulfate 28% wash active substance Mixture of fatty alcohol ether sulfates with the addition of pearlescent components

Coconut fatty acid diethanolamide sodium aluminum silicate F perfume

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water

10.0 parts by weight 10.0 parts by weight

20.0 parts by weight 5.0 parts by weight 12.0 parts by weight 0.5 parts by weight 42.5 parts by weight

Example 9 Liquid shampoo 60 sodium lauryl ether sulfate 28% washing active substance hydroxyethyl cellulose 2 percent solution oleic acid diethanolamide 65 zinc pyrithione sodium aluminum silicate H perfume water

30.0 parts by weight

30.0 parts by weight 2.0 parts by weight 2.0 parts by weight 8.0 parts by weight 1.0 part by weight 27.0 parts by weight

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Example 10 Liquid shampoo oleyl acetyl alcohol + approx. 5 mol

Ethylene oxide 10.0 parts by weight of oleyl acetyl alcohol + approx. 10 mol

Ethylene oxide 5.0 parts by weight of coconut fatty amine derivative with betaine

structure 30% active washing substance 10.0 parts by weight

Sodium chloride 2.0 parts by weight

Sodium aluminum silicate I 5.0 parts by weight

Perfume 0.5 parts by weight

Water 67.5 parts by weight

Example 11 Liquid shampoo coconut fat amine derivative with betaine structure

30% active washing substance 20.0 parts by weight of oxyethyl alkyl ammonium phosphate

50 percent 2.0 parts by weight of oleyl acetyl alcohol + approx. 5 mol

Ethylene oxide 10.0 parts by weight

Potassium aluminum silicate D 15.0 parts by weight

Perfume 0.5 parts by weight

Water 52.5 parts by weight

Example 12 Dry Shampoo Fumed Silica Powder

"Aerosil" 200 2.3 parts by weight

Rice starch 70.0 parts by weight

Sodium aluminum silicate A 15.0 parts by weight

Talc 12.0 parts by weight

Isopropyl myristate 0.2 parts by weight

Perfume 0.5 parts by weight

Example 13 Shampoo in tablet form sodium alkyl-Cj 2-Ci 8-sulfate,

powder

Sodium lauryl sulfate, granules sodium sulfate sodium aluminum silicate B perfume

40.0 parts by weight 1.0 part by weight 33.0 parts by weight 25.0 parts by weight 1.0 part by weight OK The shampoos of Examples 1-5 were applied to 25 test persons with greasy hair tested over a period of 6 weeks. A head wash was carried out once a week. The assessment was carried out by trained personnel. Already after the first wash, there was a strong delay in regreasing, so that the weekly wash was sufficient to keep the hair looking good for a week. After 6 weeks it was found that the hair in all test subjects had an improved grip, was significantly fuller and had a significantly improved gloss. The regreasing of the hair was significantly delayed, so that all test persons who previously had to wash the hair at least twice a week now had to wash their hair for a week or more.

In addition, 1-11 one-off comparative washing tests were carried out on test persons with greasy hair with all shampoos from examples 25-1. A common shampoo was used on one half of the head and one of the described shampoos on the other. After a week, the hair was examined by a hairdresser. It was found that the hair treated with the usual shampoo had reached the previous unsightly, greasy state, while the hair treated with the described shampoos was still attractive, loose and plump to the touch.

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