KR20010080759A - Process for preparing a low tfm detergent bar composition - Google Patents

Abstract

A low total fat detergent composition comprising a surfactant, 25-70% total fat, 9-16% colloidal aluminum hydroxide and 12-52% water. The present invention also provides a method for preparing a detergent bar composition comprising a surfactant, 25-70% total fat, 0.5-20% colloidal aluminum hydroxide and 15-52% water, comprising the following steps: provides: having a solids content of the one or more fatty acids or fats 20-55% Al ₂ O ₃ dae Na ₂ O ratio is 0.5 to 1.55: 1 is reacted with the sodium aluminate aluminum at a temperature of 40 to 95 ^o C Obtaining a hydroxide and soap mixture; Adding a predetermined amount of water to the aluminum and soap mixture; Adding additional hydrophobic additives; And converting the product directly.

Description

PROCESS FOR PREPARING A LOW TFM DETERGENT BAR COMPOSITION}

Based on personal cleansing soaps, conventional detergent bars contain at least about 70% TFM by weight, the remainder being water (about 10-20%) and other ingredients such as pigments, flavors, preservatives and the like. Structural and fillers are also present in these compositions in small amounts to replace some soap in the bar while maintaining the desired bar hardness. A few known fillers include starch, kaolin and talc.

Hard ungrind soaps containing less than 35% moisture are also available. These bars have a TFM of about 30-65%. TFM reduction was achieved using insoluble particulates and / or soluble silicates.

The milled bars generally have a water content of about 8-15% and the hard unmilled bars have a water content of about 20-35%.

Swiss patent 226570 (1943) teaches the use of colloidal alumina hydrate mixed with "powder soap wort root" and sodium-naphthalene sulfonate. In the presence of water the colloidal alumina gel forms a hard uniform mass that can be packaged and sold. However, this means a cast bar.

IN 176384 incorporates up to 20% of colloidal aluminum hydroxide (A-gel) to provide a low TFM content detergent composition with a high water to TFM ratio without affecting the hardness, cleaning and laddering properties of the bar Is starting. The A-gel / TFM combination allowed the bar formulation to have a higher water content while using lower levels of TFM. This document also discloses a method which makes it possible to produce low TFM bars with a high water content but with a satisfactory hardness by providing a balanced combination of aluminum hydroxide and TFM. This application reacts a fatty acid or acid precursor of an active detergent with aluminum containing an alkaline substance such as sodium aluminate to form a colloidal alumina hydrate in situ to form what is obtained by floding. Teach that.

In this document, the disclosed A-gel concentration is 20% by weight or less, but the example is limited to using 7.5% by weight of A-gel in combination with 40 TFM with additional structuring agents such as 5% by weight of alkaline silicates. do.

It has been found that when A-gels are used up to 9.0% by weight, good process capability cannot be prepared without additional structural agents and / or without increasing TFM. However, bars with A-gels of 16.0% by weight or more will be very difficult to process and will adversely affect sensory and physical properties.

In addition, the fatty acid or acid precursor of the active detergent is present in an alumina (Al ₂ O ₃ ) to sodium oxide (Na ₂ O) in a weight ratio of 0.5 to 1.55 and has a solid content of 20 to 55% and provides excellent bar properties. It has also been found to react with aluminum containing alkaline substances such as sodium aluminate to produce aluminum hydroxide in situ. These bars have improved hardness and softer feel. This reaction can take place in a wider temperature range of 40 to 95 ^° C.

The present invention relates to a synergistic composition of a soap / detergent bar for personal or textile cleaning. The present invention is particularly directed to an improved detergent composition composition bar that is low in total fat matter (TFM) with good sensory and physical properties. The present invention also relates to a method for producing a soap / detergent bar, in particular to an improved method for producing a detergent bar with a low total fat content.

Therefore, according to a first aspect of the present invention, there is provided a low TFM content detergent composition having excellent sensory and physical properties, including:

25 to 70 weight percent total fatty matter;

9.0-16% by weight of colloidal aluminum hydroxide (A-gel);

12 to 52 weight percent water; And

Optionally other liquid benefit agents (the remaining being other conventional ingredients).

According to a further aspect, it comprises 25 to 70% by weight of total fatty matter, 0.5 to 20% by weight of colloidal aluminum hydroxide (A-gel), 15 to 52% by weight of water and the rest as described herein. There is provided an improved method of making a low TFM detergent bar, another few additives, which comprises the following steps:

a. Aluminum containing an alkaline substance, such as sodium aluminate, having a solids content of 20 to 55% of one or more fatty acids or fats described herein and wherein Al ₂ O ₃ to Na ₂ O are present at a ratio of 0.5 to 1.55: 1. React with to obtain an aluminum hydroxide and soap mixture at 40-95 ^° C .;

b. Adding a predetermined amount of water to the aluminum hydroxide and soap mixture;

c. If desired, adding other minor additives, such as those described herein, to the mixture of step (b);

d. Directly converting the product of step (c) by conventional methods.

The term total fatty matter, commonly omitted by TFM, is used to refer to the weight percent of fatty acids and triglyceride residues present, without considering the accompanying cations.

For soaps with 18 carbon atoms, the accompanying cation will generally be in an amount of about 8% by weight. Other cations may be used, for example, zinc, potassium, magnesium, alkyl ammonium and aluminum as needed.

The term soap means salts of carboxylic fatty acids. Soaps can be derived from triglycerides commonly used in soap production-as a result the carboxylate anions of the soap can contain 8 to 22 carbon atoms.

Soaps can be obtained by saponifying fats and / or fatty acids. Fats and oils commonly used in soap production may be resins, resin stearin, palm oil, palm stearin, soybean oil, fish oil, castor oil, rice bran oil, sunflower oil, coconut oil, babasu oil, palm kernel oil and the like. In this method, the fatty acids are derived from oils / fats selected from coconut, rice bran, peanuts, resins, palms, palm kernel oil, cottonseeds, soybeans, castors and the like. Fatty acid soaps can also be synthesized (eg by petroleum oxidation or by hydrogenation of carbon monoxide by the Fischer-Tropsch method). Resin acids, such as those present in soil oils, can be used. Naphthenic acid is also suitable.

Resin fatty acids can be derived from a variety of zoos and are generally about 1-8% myristic acid, about 21-32% palmitic acid, about 14-31% stearic acid, about 0-4% palmitoleic acid, about 36 -50% oleic acid and about 0-5% linoleic acid. Typical distributions are 2.5% myristic acid, 29% palmitic acid, 23% stearic acid, 2% paletoleic acid, 41.5% oleic acid, and 3% linoleic acid. Also included are other mixtures with similar distributions, such as those derived from palm oil and those derived from various animal resins and pork oils.

Coconut oil contains a fatty acid mixture with a carbon length distribution of approximately 8% C ₈ , 7% C ₁₀ , 48% C ₁₂ , 17% C ₁₄ , 8% C ₁₆ , 2% C ₁₈ , 7% oleic and 2% linoleic acid. (The first six fatty acids listed are saturated). Other raw materials with similar carbon chain length distributions, such as palm kernel oil and babasse kernel oil, are included in the term coconut oil.

According to a further preferred aspect, the present invention provides an improved method of making a low TFM detergent bar comprising:

a. Aluminum containing an alkaline substance such as sodium aluminate having a solids content of 20 to 55% of one or more fatty acids described herein, wherein Al ₂ O ₃ to Na ₂ O are present in a ratio of 1.0 to 1.55: 1; Reacting in the presence of 0.5-2% by weight solubility stabilizer to obtain an aluminum hydroxide and soap mixture at 40-95 ^° C .;

b. Adding a predetermined amount of water to the aluminum hydroxide and soap mixture;

c. If desired, adding other minor additives described herein to the mixture of step (b);

d. Directly converting the product of step (c) by conventional methods.

Solubility stabilizers are conveniently selected from soluble inorganic or organic salts, polymers, other alkaline substances, citric acid, tartaric acid, alkali metal salts of gluconic acid, polyvinyl alcohol and the like. Most preferred solubility stabilizer is potassium chloride.

According to a preferred aspect of the present invention, up to 30% of other liquid benefit agents, such as soap surfactants, skin benefit agents such as moisturizers, emollients, sunscreens, anti-aging compounds are incorporated in a step prior to the milling step. Optionally, these specific benefit agents can be introduced into the macro domain during floating.

The particle size of the aluminum hydroxide may be between 0.1 and 25 μm, preferably with an average particle size of between 2 and 15 μm, most preferably 7 μm.

fatty acid

Typical suitable fatty acid mixtures consist of 5 to 30% coconut fatty acids and 70 to 95% fatty acids such as hardened rice bran oil. Fatty acids derived from other suitable oils / fats such as peanuts, soybeans, resins, palms, palm kernels and the like can also be used in other preferred ratios.

Aluminum containing alkaline substances

It is desirable to produce aluminum hydroxide in situ while saponifying fats / fatty acids. The at least one fat / fatty acid has a solids content of 20 to 55%, preferably 30 to 55%, and the ratio of Al ₂ O ₃ to Na ₂ O is 0.5 to 1.55: 1, preferably 1.0 to 1.5: 1. Saponified with aluminum containing an alkaline substance, such as sodium aluminate present, can be obtained a mixture of aluminum hydroxide and soap at a temperature of 40 to 95 ^o C, preferably 60 to 95 ^o C. Solubility stabilizers may be selected from soluble inorganic or organic salts, polymers, other alkaline materials, citric acid, tartaric acid, alkali metal salts of gluconic acid, polyvinyl alcohol, and the like, and may be further incorporated. Most preferred solubility stabilizer is potassium chloride.

In certain embodiments, specifically in those associated with the process of the invention, soluble inorganic salts are preferably present to improve the quality of the aluminum hydroxide formed, which inorganic salts may preferably be potassium chloride. .

Commercially available aluminum hydroxide having a particle size distribution of 20 to 40 μm, or aluminum hydroxide prepared by reacting a sodium aluminate solution with a mineral acid such as hydrochloric acid may be incorporated.

Benefit agents

Soap surfactants may be anionic, nonionic, cationic, amphoteric or zwitterionic or mixtures thereof. Examples of moisturizers and humectants are polyols, glycerol, cetyl alcohol, carbocol 934, ethoxylated castor oil, paraffin oil, lanolin and derivatives thereof. Silicone surfactants such as DC3225C (Dow Corning) and / or silicone emollients, silicone oils (DC-200 X-Dow Corning) may also be included. 4-t-butyl-4'-methoxy dibenzoylmethane (sold under the trade name PARSOL 1789 from Zibaudan), and / or 2-ethyl hexyl methoxy cinnamate (sold under the trade name PARSOL MCX from Zibaudan). Sunscreens, or other UV-A and UV-B sunscreens may also be included.

Other additives

As described in our patent application IN 175386, other additives may also be incorporated, such as one or more particulates that are insoluble in water, such as polysaccharides such as talc, kaolin, starch or modified starch.

Handful of additives

In step (c) of the process according to the invention, minor additives such as perfumes, pigments, preservatives and other conventional additives may be incorporated at concentrations of about 1 to 2% by weight.

Non-soap detergents

The composition according to the invention will preferably comprise a detergent active agent, which is generally selected from both anionic and nonionic detergent actives.

Suitable anionic detergent active compounds are water soluble salts of organic sulfuric acid reaction products having alkyl radicals containing 8 to 22 carbon atoms and radicals selected from sulfonic or sulfuric acid ester radicals and mixtures thereof in the molecular structure.

Examples of suitable anionic detergents are sodium and potassium alcohol sulfates, especially those obtained by sulfated higher alcohols prepared by reducing the glycerides of resins or coconut oils; Sodium and potassium alkyl benzene sulfonates such as those in which the alkyl group contains 9 to 15 carbon atoms; Sodium alkyl glyceryl ether sulfates, especially ethers of resins and coconut alcohols derived higher alcohols; Sodium coconut oil fatty acid monoglyceride sulfate; Sodium and potassium salts of sulfuric acid esters of the reaction product of 1 mole of higher fatty alcohols with 1 to 6 moles of ethylene oxide; Sodium and potassium salts with 1 to 8 units of ethylene oxide molecules of alkyl phenol ethylene oxide ether sulfates having alkyl radicals containing from 4 to 14 carbon atoms; And reaction products of fatty acids esterified with isethionic acid and neutralized with sodium hydroxide (eg, fatty acids are derived from coconut oil and mixtures thereof).

Preferred water-soluble synthetic anionic detergent active compounds are alkali metal (such as sodium and potassium) and alkaline earth metal (such as calcium and magnesium) salts of higher alkyl benzene sulfonates and mixtures with olefin sulfonates and higher alkyl sulfates and higher fatty acid monoglyceride sulfates. to be. Most preferred anionic detergent active compounds are higher alkyl aromatic sulfonates, such as higher alkyl benzene sulfonates containing 6 to 20 carbon atoms in straight or branched alkyl groups, specific examples of which are higher alkyl benzene sulfonates or higher Sodium salts of alkyl toluene, xylene or phenol sulfonates, alkyl naphthalene sulfonates, ammonium dialkyl naphthalene sulfonates, and sodium dionyl naphthalene sulfonates.

Suitable nonionic detergent active compounds can be broadly described as compounds prepared by condensation of hydrophilic alkylene oxide groups with organic hydrophobic compounds which may be aliphatic or alkyl aromatic. The length of the hydrophilic or polyoxyalkylene radical condensed with a particular hydrophobic group can be easily adjusted to obtain a water soluble compound having the desired degree of balance between hydrophilic and hydrophobic elements.

Specific examples include condensation products with ethylene oxide, such as coconut oil ethylene oxide having 2 to 15 moles of ethylene oxide per mole of coconut alcohol of aliphatic alcohols having 8 to 22 carbon atoms in a straight or branched chain; Condensates of alkyl phenols containing 6 to 12 carbon atoms with 5 to 25 moles of ethylene oxide per mole of alkylphenol; Condensate of the reaction product of ethylenediamine and propylene oxide with ethylene oxide, which contains 40 to 80 weight percent polyoxyethylene radicals and has a molecular weight of 5,000 to 11,000; Tertiary amine oxides of structure R ₃ NO, wherein one R is a group of 8 to 18 carbon atoms and the other is a methyl, ethyl or hydroxyethyl group, for example dimethyldodecylamine oxide; Tertiary phosphine oxide of structure R ₃ PO, wherein one R is an alkyl group of 10 to 18 carbon atoms and the other is an alkyl or hydroxyalkyl group of 1 to 3 carbon atoms each, for example dimethyldodecylphosphine oxide being); And dialkylsulfoxides of structure R ₂ SO, wherein group R is an alkyl group of 10 to 18 carbon atoms and the remainder is methyl or ethyl, for example methyltetradecyl sulfoxide; Fatty acid alkylolamides; Fatty acid alkylolamides and alkyl mercaptan alkylene oxide condensates.

It is also possible to include amphoteric, cationic or zwitterionic detergent actives in the compositions according to the invention.

Reaction step (a) is generally carried out at 40 to 95 ^° C., more preferably at 60 to 95 ^° C. The order of reaction step (a) is important and it is preferred to add fatty acids to sodium aluminate.

The bar is manufactured by conventional methods, for example, by plane cooling or extrusion (floating). As a rule, in the extrusion process, the fatty acids are neutralized with sodium aluminate as such or in the presence of soap detergent activators, a few selected additives are added and dried to the desired moisture content. The dried soap, if not previously added in the mixer, is then mixed with the remaining few additive / soap detergents, mechanically worked in a triple roll mill and floated in the form of billets in vacuo. The billet is later stamped in the form of a bar.

Soap / detergent bars made according to the present invention have been found to have excellent visual appearance, feel, hardness, cleaning and laddering properties.

Descriptions of a few non-limiting examples are provided herein by reference only to the compositions and methods according to the invention and to the description showing comparative results outside the scope of the invention.

Example 1-3

Details of the suitable bar compositions and their properties are shown in Table 1.

Composition (parts by weight) Example 1 Example 2 Example 3 TFM 62 66 56 Soda ash 0.5 0.5 0.5 moisture 19.0 19.0 19.0 Colloidal aluminum hydroxide 12.4 8.0 18 A minority component 0.8 0.8 1.5 Product Specifications Yield stress (Pa.) 3.3 x 10 ⁵ Too soft Very hard Texture 7.5 - 8.7

Samples prepared as described above were tested for hardness (yield stress) and texture (grittiness) by the following method.

Yield stress:

Yield stress quantifies the hardness of the soap bar. The yield stress of the bar at a certain temperature was determined by observing the extent to which the bar was cut by the surveyed cheese wire for a certain time. The instrument consists of a cheese wire (diameter d, cm) attached to a counter balanced arm that can be freely pivoted through a ball race bearing. The billet of soap is positioned so that the wire only contacts one edge of the billet. By applying a load (W g.) Directly on the cheese wire, a constant force appears on the wire to be broken with soap. The area in which the force acts will increase as the depth of cut increases, so the stresses that appear will be exactly balanced by the resistance of the soap and will decrease until the wire stops moving. The stress at this point is equivalent to the yield stress of the soap. The time to reach this point was found to be 30 seconds, so typically a minute of time was chosen to reach the yield stress. After this time the load was removed and the cut lengths (L, cm) were measured. Yield stress is calculated using the following semi-experimental formula:

YS = 3 W x 98.1 (Pa.)

8 L x d

Texture

Conventional cleaning in cold water is followed to assess the authenticity by the feeling of trained panelists. Scores are provided from 1 to 10, where score 1 relates to the best feel and 10 relates to the worst feel. Bathroom soaps of acceptable quality generally have a feel score in the range of 7.8 to 8.0.

The data shown in Table 1 show that the physical properties and process capabilities of the bar, such as hardness, are badly affected when the colloidal aluminum hydroxide content is outside the range defined according to the present invention. The bar according to the invention had a good feel score, the bar according to example 2 was too soft to process, and the bar according to example 3 was very hard and grueling.

Example 4-6

Examples 4-6 show aluminum hydroxide in which the specific proportion of Al ₂ O ₃ : Na ₂ O in the process and sodium aluminate according to the invention is changed, compared to a composition prepared conventionally, without the addition of aluminum hydroxide. Explain those made using seeds.

Method of making soap bar:

a. Conventional method:

A 50 kg soap batch was prepared by melting the fatty acid mixture in a crutcher at 80-85 ^° C. and neutralizing with a 48% sodium hydroxide solution in water. Additional water was added to obtain a moisture content of about 33%. The soap mass was spray dried under vacuum and noodle was made. Soap noodle was mixed with soda ash, talc, flavorings, pigments, and titanium dioxide in a sigma mixer and passed through a triple roll mill twice. The milled chips were floated in vacuo into billets. Billets were cut and stamped with tablets.

b. Method according to the prior art:

A 50 kg soap batch was prepared by melting the fatty acid mixture in the crusher at 80-85 ^° C. and neutralizing with 40% sodium aluminate solution. Sodium aluminate solution was prepared by dissolving solid sodium aluminate in water at 90-95 ^° C. Additional water was added to obtain a moisture content of about 36%. The soap mass was spray dried in vacuo and made noodle. Soap noodle was mixed with soda ash, flavors, pigments, and titanium dioxide in a sigma mixer and passed through a triple roll mill twice. The milled chips were floated in vacuo and billed. Billets were cut and stamped with tablets.

c. Method according to the invention:

A 50 kg soap batch was prepared by melting the fatty acid mixture in the crusher at 80-85 ^° C. and neutralizing with 40% sodium aluminate solution. Sodium aluminate solution was prepared by dissolving solid alumina trihydrate in sodium hydroxide at 90-95 ^° C. Additional water was added to obtain a moisture content of about 36%. The soap mass was spray dried in vacuo and made noodle. Soap noodle was mixed with soda ash, flavors, pigments, and titanium dioxide in a sigma mixer and passed through a triple roll mill twice. The milled chips were floated in vacuo and billed. Billets were cut and stamped with tablets.

Samples prepared as described above were tested for hardness (yield stress) and texture (gritness) as described above.

result

Composition (parts by weight) Example 4 (Invention) Example 5 (prior art) Example 6 (control) TFM 62 62 68 Soda ash 0.5 0.5 0.5 Talc - - 11.0 moisture 19.0 19.0 13.2 Colloidal Aluminum Hydroxide Al ₂ O ₃ : Na ₂ O = 1.1 12.4 - - Colloidal Aluminum Hydroxide Al ₂ O ₃ : Na ₂ O = 1.66 - 12.4 - A minority component 0.8 0.8 1.5 Product Specifications Yield Stress (Pa.) 3.3 x 10 ⁵ 3.2 x 10 ⁵ 3.0 x 10 ⁵ Texture 7.5 8.4 8.0

The data shown show that the water content of the bar was increased up to 19.0 as compared to the control having a water content of 13.2, and although the filler content was completely removed, it did not significantly affect the hardness of the bar. However, as compared to the control prepared according to the prior art, the texture of the soap according to the present invention is very excellent. The panelists gave the bar according to the invention significantly lower grit scores compared to the control.

Example 7-11

The following composition was prepared as outlined above:

ingredient Parts by weight 7 8 9 10 11 TFM 62 67 62 72 55 Aluminum hydroxide 12 7 7 7 18 water 20 20 20 15 20 Talc 0 0 5 0 0 Intrusion (mm at 35 ^o C) 4.1 5.3 5.0 4.2 4.0 Yield Stress (kPa at 35 ^o ) 190 130 150 200 200

In connection with the preparation, Example 7 is within the scope of the present invention, and Examples 8-10 have aluminum hydroxide values below the required moisture. Example 11 has aluminum hydroxide levels above the claimed invention.

Due to the bar properties, bars containing less aluminum hydroxide have been found to be easier to lose moisture, and in some circumstances can also produce larger amounts of mash. Bars containing a relatively large amount of aluminum hydroxide were easy to crack.

Moreover, when the aluminum hydroxide level drops below about 8%, the soap bars can be too soft (ie have a low yield stress and a high penetration value) and have been found to be relatively difficult to process at a given water content.

As such, the addition of 5% talc improved the hardness but was not sufficient. Bar hardness can only be improved by lowering the water content and increasing the TFM, but results in increased product costs. At a given water content, dropping aluminum hydroxide levels below 8% increases the mash, which can be mitigated by adding talc and reducing the water content.

If the aluminum hydroxide content is increased above about 16%, the bar can retain process capability at a given water content, but it has been found to have a good feel. These relatively high aluminum hydroxide content bars also exhibited significant cracking, reduced rates of weir, and severe wind damage in storage.

Claims (21)

A low total fat detergent composition comprising a surfactant, 25-70% total fat, 9-16% colloidal aluminum hydroxide and 12-52% water. The detergent bar of claim 1, wherein the fatty substance comprises fatty acid and / or triglyceride residues. The detergent bar of claim 1 or 2, wherein said composition further comprises up to 30% by weight of a liquid benefit agent selected from soap surfactants, skin benefit substances, emollients, sunscreens or anti-aging compounds. 4. The detergent bar of claim 3, wherein the liquid benefit agent is added to the bar composition at any stage. 4. The detergent bar of claim 3, wherein the liquid benefit agent is added to the bar composition as a macro domain during floating. The detergent bar of claim 1, wherein the composition comprises a resin fatty acid and / or coconut oil. The detergent bar of claim 1, wherein the aluminum hydroxide has a particle size of 0.1-25 μm. The detergent bar of claim 1, wherein the fatty acid mixture consists of 5-30% coconut fatty acid and 70-95% hardened rice bran oil fatty acid. The detergent bar of claim 1, wherein the aluminum hydroxide is produced in situ during saponification. The method of claim 1, further comprising a solubility stabilizer selected from soluble organic or inorganic salts, polymers, polyvinyl alcohols, alkaline materials, and alkali metal salts of citric acid, tartaric acid, or gluconic acid. Detergent bar. The detergent bar of claim 10, wherein said solubility stabilizer is potassium chloride. 12. The detergent bar of any of claims 1 to 11, wherein the surfactant is an anionic or nonionic surfactant. A method of making a detergent bar composition comprising a surfactant, 25-70% carbohydrate, 0.5-20% colloidal aluminum hydroxide and 15-52% water, comprising the following steps: a) aluminum hydroxide at temperatures between 40 and 95 ^° C. by reacting at least one fatty acid or fat with sodium aluminate having a solids content of 20-55% and an Al ₂ O ₃ to Na ₂ O ratio of 0.5-1.55: 1 Obtaining a seed and soap mixture; b) adding a predetermined amount of water to the aluminum and soap mixture; c) adding additional hydrophobic additives; And d) directly converting the product of step (c). The method of claim 13, wherein the soap is formed from resinous fatty acids and / or coconut oil. The process according to claim 13 or 14, wherein solubility stabilizer of 0.5-2% by weight is added during step (a). The process according to claim 13, wherein said solubility stabilizer is selected from soluble organic or inorganic salts, polymers, alkaline metals, polyvinyl alcohols and alkali metal salts of citric acid, tartaric acid, or gluconic acid. The method according to any one of claims 13 to 16, wherein up to 30% by weight of the liquid benefit agent selected from soap soaps, skin benefit substances, emollients, sunscreens, or anti-aging compounds, or mixtures thereof is added during the process. Which is added to the composition. 18. The method according to any one of claims 13 to 17, wherein the particle size of the aluminum hydroxide is from 0.1 to 25 mu m. 19. The method of any of claims 13-18, wherein the fatty acid comprises a mixture of 5-30% coconut fatty acid and 70-95% hardened rice bran oil fatty acid. The method of claim 13, wherein the ratio of Al ₂ O ₃ to Na ₂ O in step (a) is 1.0-1.5: 1. The process of claim 13, wherein the reaction temperature in step (a) is 60-95 ^° C. 21.