WO2010090354A1

WO2010090354A1 - Thickener for the production of solid detergents

Info

Publication number: WO2010090354A1
Application number: PCT/JP2010/052237
Authority: WO
Inventors: 斎藤景太郎; 吉田尚; 池田直哲; 服部達也
Original assignee: 味の素株式会社
Priority date: 2009-02-09
Filing date: 2010-02-09
Publication date: 2010-08-12
Also published as: CN102307980A; JPWO2010090354A1

Abstract

Provided are a solid detergent composition, the hardness of which is enhanced without impairing the foaming properties, and which is prevented from crumbling and dissolving; production of a transparent solid detergent by a simple process which can dispense with an aging step; and a transparent solid detergent which exhibits enhanced transparency for a long period. The solid detergent composition can be produced using a thickener for the production of solid detergents which contains both an acylamino acid amide type gelling agent, and a polyhydric alcohol and/or a higher alcohol.

Description

Thickener for manufacturing solid detergent

The present invention relates to a thickener for producing a solid detergent and a solid detergent composition.

For a long time, there have been a frame kneading method and a mechanical kneading method as methods for producing a solid detergent composition (solid soap).
The frame kneading method was a method used as a method for producing a solid detergent composition having a higher fatty acid as a main component, particularly a transparent solid detergent. The method is as follows: 1) Pour higher fatty acid salt, water, glycerin, sugar, polyhydric alcohol such as sorbitol, and lower monohydric alcohol such as ethanol into the main frame 2) Cut and mold after cooling and solidification 3) Next, a process of volatilizing the volatile components and aging to a certain amount was performed.
In this conventional manufacturing method, after cooling and solidification, it is difficult to remove from the frame, and the aging process takes a long period of about 2 months, and there are problems such as environmental problems due to alcohol scattering during that time, securing of aging space, etc. there were. In addition, there has been a problem that it is easily melted during use and the transparency is lowered.
For such problems, there has been an attempt to limit the oils and fats used to prevent melting and collapsing and to make the composition excellent in transparency (Japanese Patent Laid-Open No. 2001-152197). There has also been an attempt to maintain transparency by blending sodium chloride (JP 2002-256296 A). There has also been an attempt to produce a transparent soap without using a lower alcohol (Japanese Patent Laid-Open No. 63-275700).
However, according to the technique disclosed in Japanese Patent Laid-Open No. 2001-152197, another problem of limiting the feeling of use has occurred due to the limited oils and fats that can be used. The technique disclosed in Japanese Patent Application Laid-Open No. 2002-256296 has caused another problem that foaming properties are weakened. In addition, in the technology of JP-A-63-275700, triethanolamine is used as a neutralizing agent, so that it is used only for extremely limited applications due to the problem of oxidative deterioration and yellowing due to long-term storage. could not.
On the other hand, the mechanical kneading method has also been an old method used as a method for producing a solid detergent composition mainly composed of higher fatty acids and / or synthetic surfactants. As a synthetic surfactant, the main cleaning component is acylamino acid salt, but it has excellent detergency in hard water, its pH is weakly acidic and less irritating to the skin. It has come to be widely used because it gives the skin a moist feeling.
However, solid detergent compositions containing acyl amino acid salts, especially acyl acidic amino acid salts, have higher alcohols such as cetanol as an essential component to improve their difficult processability, but still have other physical properties, particularly prevention of melting and collapsing. It was a big issue.
In order to solve this problem, attempts have been made to add alkaline earth metal salts of acyl acidic amino acids (Japanese Patent Laid-Open No. 50-160304) and attempts to add iminodicarboxylic acid (Japanese Patent Laid-Open No. 53-113806). However, a sufficient effect was not obtained.

The object of the present invention is to provide a solid detergent composition that can increase hardness without impairing foaming and prevent melting and collapse, and a transparent solid detergent composition does not require a lower monohydric alcohol and does not require an aging step. The present invention provides a simple cleaning method and a solid detergent composition having improved transparency and durability (transparency with time).
As a result of intensive studies to solve the above-mentioned problems, the above-mentioned solid detergent is obtained by using an acylamino acid amide gelling agent and a thickener for producing a solid detergent containing a polyhydric alcohol and / or a higher alcohol. The present inventors have found that a composition can be provided and have completed the present invention.
That is, the present invention includes the following aspects.
[1] A thickener for producing a solid detergent, comprising a gelling agent and a polyhydric alcohol and / or a higher alcohol.
[2] The thickener for producing a solid detergent according to [1], wherein the gelling agent is an acylamino acid amide.
[3] The thickening agent for producing a solid detergent according to [2], wherein the acylamino acid amide is one or more of the group selected from lauroylglutamic acid dibutylamide and 2-ethylhexanoylglutamic acid dibutylamide Agent.
[4] The solid amino acid amide according to [2], wherein the acylamino acid amide is a mixture of lauroyl glutamic acid dibutylamide and 2-ethylhexanoyl glutamic acid dibutylamide in a mass ratio of 2: 8 to 8: 2. Thickener.
[5] The thickener for producing a solid detergent according to [1] to [4], wherein the dissolution temperature is 40 ° C. to 110 ° C.
[6] A solid detergent composition containing the thickener for producing a solid detergent according to [1] to [5].
[7] The solid detergent composition according to [6], which contains 5 to 40% by mass of water based on the total amount of the solid detergent composition.
[8] The solid detergent composition according to [6], which contains 25 to 40% by mass of water based on the total amount of the solid detergent composition.
[9] A step of dissolving a higher fatty acid or a salt thereof by heating A step of adding the thickener for producing a solid detergent according to [1] to [5] and stirring with heating;
Cooling step;
The manufacturing method of the solid cleaning composition containing this.
[10] A step of kneading the surfactant and the thickener for producing the solid detergent according to [1] to [5];
The manufacturing method of the solid cleaning composition containing this.
[11] The method according to any one of [9] to [10], further comprising adding water so as to be 5 to 40% by mass relative to the total amount of the solid detergent composition.
[12] The production method according to any one of [9] to [10], further comprising adding water so that the total amount of the solid detergent composition is 25 to 40% by mass.
[13] A solid detergent composition obtained by the production method according to any one of [9] to [12].
According to the present invention, it has become possible to provide a solid detergent composition capable of increasing hardness without impairing foaming and preventing melting and collapsing. In particular, for transparent solid detergent compositions, it has become possible to provide an extremely simple production method that can reduce the production time by eliminating the need for a lower monohydric alcohol and no aging step, and a product with improved transparency and durability.
The thickener for producing a solid detergent of the present invention (hereinafter also simply referred to as a thickener) contains a gelling agent and a polyhydric alcohol and / or a higher alcohol.
The gelling agent used in the thickener of the present invention is not particularly limited as long as it has the ability to harden oil to form a gel, but specifically, aromatic aldehydes such as benzylidene sorbitol and many others. A condensate of a monohydric alcohol; a condensate of a higher fatty acid with a polyhydric alcohol, a saccharide, such as behenic acid / glycosyl eicosandioate, behenic acid / polyglyceryl eicosandioate, dextrin palmitate, inulin stearate; lauroylglutamic acid dibutylamide, Examples include acylamino acid amides such as 2-ethylhexanoylglutamic acid dibutylamide, dioctanoyllysine amide, dioctanoyllysine 2-ethylhexylamide; acylamino acid esters such as lauroylglutamine ethyl ester; and peptide derivatives. These may be used alone or in combination of two or more. From the viewpoint that a thickener having transparency can be obtained, acylamino acid amides and acylamino acid esters are preferred. Lauroyl glutamic acid dibutylamide, 2-ethylhexanoyl glutamic acid dibutylamide, lauroyl glutamine ethyl ester, dioctanoyl lysine amide, dioctyl Octanoyl lysine 2-ethylhexylamide is more preferable, lauroyl glutamic acid dibutylamide, 2-ethylhexanoyl glutamic acid dibutylamide, lauroyl glutamine ethyl ester, dioctanoyl lysine 2-ethylhexylamide is more preferable, lauroyl glutamic acid dibutylamide, 2-ethyl Hexanoyl glutamic acid dibutylamide is even more preferred. Further, a mixture of lauroyl glutamic acid dibutylamide and 2-ethylhexyl glutamic acid dibutylamide (mass mixing ratio 2: 8 to 8: 2) is particularly preferable from the viewpoint that transparency and strength of the product can be imparted.
Examples of the polyhydric alcohol used in the thickener of the present invention include ethylene glycol, diethylene glycol, glycerin, propylene glycol, dipropylene glycol, erythritol, 1,3-butylene glycol, pentaerythritol, neopentyl glycol, 1,2- Pentanediol, 1,2-hexanediol, 1,6-hexanediol, 1,2,6-hexanetriol, 1,2-octanediol and the like can be mentioned. These may be used alone or in combination of two or more. From the viewpoint that a thickener capable of exhibiting an effective thickening effect in a small amount can be obtained, ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, neopentyl glycol, 1,2-pentanediol 1,2-hexanediol, 1,2-octanediol are preferred, propylene glycol, dipropylene glycol, 1,3-butylene glycol, 1,2-pentanediol, 1,2-hexanediol, 1,2-octane Diol is more preferable, and propylene glycol, 1,3-butylene glycol, 1,2-pentanediol, and 1,2-hexanediol are still more preferable. From the viewpoint that transparency can be imparted, propylene glycol and 1,3-butylene glycol are particularly preferable.
As the higher alcohol used in the thickener of the present invention, a linear or branched monohydric alcohol having 8 to 30 carbon atoms can be used. Specifically, octanol, decanol, dodecanol, cetanol, stearyl Examples include alcohol, isostearyl alcohol, octyldodecanol, and behenyl alcohol. These may be used alone or in combination of two or more. Octanol, decanol, dodecanol, cetanol, isostearyl alcohol, octyldodecanol are preferred, and dodecanol, cetanol, isostearyl alcohol, octyldodecanol from the viewpoint that a thickener capable of exhibiting an effective thickening effect can be obtained in a small amount. Are more preferable, and cetanol, isostearyl alcohol, and octyldodecanol are still more preferable. From the viewpoint of improving foam quality, cetanol is particularly preferable.
The polyhydric alcohol and higher alcohol used in the thickener of the present invention may be used separately or in combination. From the viewpoint that a transparent solid detergent composition can be produced, polyhydric alcohols are preferable, propylene glycol, 1,3-butylene glycol, 1,2-pentanediol, 1,2-hexanediol are more preferable, propylene glycol, 1,3-butylene glycol is more preferred.
The blending amount of the gelling agent used in the thickener of the present invention is not particularly limited as long as the thickener obtained by completely dissolving the gelling agent maintains effective thickening. From the viewpoint that effective thickening can be exhibited, the range of 1 to 30% by mass with respect to the total weight of the thickening agent is preferable. When the blending amount is lower than 1% by mass, the thickening effect of the obtained thickener tends to be poor, and when the blending amount is larger than 30% by mass, the obtained thickener is obtained. Although there is a thickening effect, the solubility tends to be poor. The lower limit of the blending amount of the gelling agent with respect to the total mass of the gelling agent, polyhydric alcohol and higher alcohol is determined to be completely dissolved at a relatively low temperature in the frame kneading method. From the viewpoint that it is preferable that it is possible to maintain the effective thickening of the obtained thickener, 5% by mass is more preferable, 10% by mass is further preferable, and 15% by mass is even more preferable. The upper limit of the amount of the gelling agent relative to the total mass of the gelling agent, polyhydric alcohol and higher alcohol is 25% by mass from the viewpoint that the effective thickening of the obtained thickener can be maintained and the solubility can be secured. Is more preferable, and 20 mass% is still more preferable.
The thickener of the present invention can be produced by heating and cooling the gelling agent until it is completely dissolved in the polyhydric alcohol and / or higher alcohol. The heating temperature is 95 ° C to 130 ° C. At the time of cooling, it can be commercialized as it is by filling the product container and cooling. The resulting thickener is in the form of a gel, and can be commercialized by crushing, crushing, and crushing to a size that is easy to handle, such as pellets, cubes, and spheres. The dissolution temperature of the resulting thickener is 40 ° C to 110 ° C. In the frame kneading method, it is required to be completely dissolved at a relatively low temperature. Therefore, it is preferable that the solution can be dissolved below the boiling point of water, and from the viewpoint that a transparent solid detergent composition can be produced, 70 ° C. ~ 95 ° C is preferred, 80 ° C to 95 ° C is more preferred, and 85 ° C to 95 ° C is even more preferred.
As one aspect of the present invention, the thickener of the present invention can produce a transparent solid detergent composition even when a lower monohydric alcohol is not used by using a frame kneading method together with a higher fatty acid or a salt thereof. Specifically, the thickener of the present invention and a higher fatty acid or a salt thereof can be dissolved by heating and cooling.
The higher fatty acid or salt thereof used in the solid detergent composition by the frame kneading method of the present invention is not particularly limited as long as it forms a solid detergent composition. A straight chain or branched chain higher fatty acid having 8 to 22 carbon atoms or a salt thereof can be used. Specifically, lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, oleic acid, linoleic acid, Examples include behenic acid, coconut oil fatty acid, and palm oil fatty acid. These may be used alone or in combination of two or more. Examples of the salt used include sodium salts, potassium salts, basic amino acid salts such as lysine and arginine, and the like. These may be used alone or in combination of two or more.
The heating temperature is preferably lower than the boiling point of water, and is 40 ° C to 95 ° C. From the viewpoint that a transparent solid detergent composition can be produced, it is preferably 70 ° C to 95 ° C, more preferably 80 ° C to 95 ° C, and still more preferably 85 ° C to 95 ° C.
The cooling temperature is not particularly limited as long as a solid detergent composition can be prepared, and is 50 ° C. or lower, preferably 40 ° C. or lower.
The blending amount of the thickener for producing the solid detergent of the present invention can be 0.05 to 3.0% by mass with respect to the total amount of the solid detergent composition. If it is less than 0.05% by mass, sufficient soap strength cannot be imparted, and if it exceeds 3.0% by mass, strength can be imparted, but foaming may be inhibited. From the viewpoint of imparting sufficient strength, 0.5% by mass or more is preferable, and from the viewpoint of transparency, 0.7% by mass or more is more preferable.
The solid detergent composition by the frame kneading method of the present invention preferably contains water from the viewpoint of foaming and foam quality. The water content is not particularly limited as long as it forms a solid detergent composition, but the lower limit of the water content (% by mass) relative to the total mass of the solid detergent composition is good foaming and foam quality. From the viewpoint that it can be retained, it is preferably 5 or more, more preferably 10 or more, still more preferably 15 or more, still more preferably 20 or more, particularly preferably 25 or more, and particularly preferably 30 or more. On the other hand, the upper limit of the content (% by mass) of water relative to the total mass of the solid detergent composition is preferably 60 or less, and 55 or less, from the viewpoint of maintaining good foaming and foam quality while maintaining the molded state. More preferably, it is more preferably 50 or less, still more preferably 45 or less, still more preferably 40 or less, and particularly preferably 35 or less.
The solid detergent composition may contain an optional component that is usually used for the solid detergent within a range not impairing the above-described action. For example, hydrocarbon oil, silicone oil, ester oil, higher alcohol, nonionic surfactant, anionic surfactant, amphoteric surfactant, moisturizer, powder, chelating agent, antioxidant, preservative, and fragrance It is done.
As a further aspect of the present invention, a solid detergent composition can be produced by using a mechanical kneading method with the surfactant of the present invention together with a surfactant. Specifically, it can be produced by kneading the thickener of the present invention and a surfactant.
The surfactant used in the solid detergent composition by the mechanical kneading method of the present invention is not particularly limited as long as it forms a solid detergent composition. Specifically, acyl amino acid salts such as lauroyl glutamate, lauroyl glycine salt, lauroyl alanine salt, lauroyl threonine salt, cocoyl glutamate, cocoyl glycine salt, cocoyl alanine salt, cocoyl threonine salt, acyl isethione sun salt, alkane Examples include sulfonates, α-olefin sulfonates, alkylsulfosuccinates, alkyl sulfates, and alkyl ether sulfates. These may be used alone or in combination of two or more. Examples of the salt used include sodium salts, potassium salts, basic amino acid salts such as lysine and arginine, and the like. These may be used alone or in combination of two or more. Acyl amino acid salts are preferable from the viewpoint of having an assimilation property and providing a good feel. Lauroyl glutamate, lauroyl glycine salt, lauroyl alanine salt, lauroyl threonine salt, cocoyl glutamate, cocoyl glycine salt, cocoyl alanine salt, A cocoyl threonine salt is more preferable, and lauroyl glutamate, lauroyl glycine salt, cocoyl glutamate, and cocoyl glycine salt are still more preferable.
The temperature at the time of kneading is not particularly limited as long as the solid detergent composition can be produced, but is preferably in the range of 10 to 100 ° C. At the time of kneading, a solid detergent composition can be obtained with or without dissolving the thickener.
The blending amount of the thickener for producing the solid detergent of the present invention can be 0.05 to 3.0% by mass with respect to the total amount of the solid detergent composition. If it is less than 0.05% by mass, sufficient soap strength cannot be imparted, and if it exceeds 3.0% by mass, strength can be imparted, but foaming may be inhibited. From the viewpoint of imparting sufficient strength, 0.5% by mass or more is preferable, and 0.7% by mass or more is more preferable.
The solid detergent composition by the mechanical kneading method of the present invention preferably contains water from the viewpoint of foaming and foam quality. The water content is not particularly limited as long as it forms a solid detergent composition, but the lower limit of the water content (% by mass) relative to the total mass of the solid detergent composition is good foaming and foam quality. From the viewpoint that it can be retained, it is preferably 5 or more, more preferably 10 or more, still more preferably 15 or more, still more preferably 20 or more, particularly preferably 25 or more, and particularly preferably 30 or more. On the other hand, the upper limit of the content (% by mass) of water relative to the total mass of the solid detergent composition is preferably 60 or less, and preferably 55 or less, from the viewpoint of maintaining good foaming and foam quality while maintaining the molded state. More preferably, it is more preferably 50 or less, still more preferably 45 or less, still more preferably 40 or less, and particularly preferably 35 or less.
The solid detergent composition of the present invention may contain an optional component that is usually used for a solid detergent within a range that does not impair the above-described action. Examples include hydrocarbon oils, silicone oils, ester oils, higher alcohols, nonionic surfactants, anionic surfactants, amphoteric surfactants, moisturizers, powders, chelating agents, antioxidants, preservatives, and fragrances. It is done.
The kneading machine to be used is not particularly limited as long as it is usually used, and examples thereof include a three-roll kneader, a kneading extruder, and a twin-screw kneading extruder.

EXAMPLES Hereinafter, although an Example and a comparative example are given and this invention is demonstrated further in detail, this invention is not limited to these.
[Production Examples 1 to 9]
The gelling agent was preliminarily heated and dissolved in various polyhydric alcohols and / or higher alcohols, and cooled to obtain thickeners for producing solid detergents shown in Table 1. The temperature at which the gelling agent is dissolved by heating and the dissolution temperature of the resulting thickener are shown.

[Mix 1 to 10] Preparation of Mixed Higher Fatty Acid Sodium Higher fatty acids having the composition shown in Table 2 were dissolved by heating, then neutralized with an aqueous sodium hydroxide solution, and then dried to obtain mixed fatty acid sodium.

[Examples 1 to 4, Comparative Examples 1 to 2] Preparation of a frame kneading method solid detergent composition Among the components shown in Table 3, the components other than the thickener and the gelling agent were dissolved by heating at 85 ° C. Then, a thickener or a gelling agent was added thereto (in the comparative example 1, a gelling agent was added, in the comparative example 2, not added), and after stirring and heating at 85 ° C. for 30 minutes, a cylindrical frame having a diameter of 40 mm 20 g was poured into several pieces, cooled to 25 ° C., and then removed from the frame to prepare a solid detergent composition. As evaluation items, ease of removal from the mold, soap strength, transparency, foamability, cloudiness, and melt-disintegration were evaluated. The results are also shown in Table 3. Hereinafter, “sample” means “20 g-unit columnar solid detergent composition”.
[Ease of removal from the formwork]
After cooling and solidification, it was marked as ◎ when it was easily removed from the mold, ○ when it was slightly removed, △ when it was difficult to remove even when force was applied, and x when extremely difficult to remove.
[Soap hardness]
Hardness was measured using a rheometer (Fudo: NRM-2010J-CW) at 25 ° C. with a moving speed of 6 cm / min with a 60-degree conical plunger entering the sample and a load (kg) when entering 10 mm. . When the strength was 7 kg or more, ◎, when it was 6 kg or more and less than 7 kg, ◯, when it was 5 kg or more and less than 6 kg, Δ, or when it was less than 5 kg.
[transparency]
The sample was judged by the following criteria by visual observation. ◎ when it was extremely uniform transparency, ○ when it was uniform transparency, Δ when turbidity occurred but very little, and x when turbidity occurred.
[Foamability]
The sample was wetted with warm water of about 35 ° C. and rubbed with both hands 20-30 times to be foamed. The foaming state at this time was judged, and it was marked as ◎ when extremely good, ◯ when good, Δ when slightly good, and × when poor.
[Transparency over time]
Wet the sample with 1 ml of water and dry as it is. This operation was repeated once a day for 3 days. Transparency after 3 days was evaluated by the same method as described above, that is, when it was very uniform transparency, ◎, when it was uniform, ○, when turbidity occurred but very little, Δ, turbidity occurred When x.
[Solubility to melt]
The sample is immersed in 100 ml of water for 1 hour and then air-dried for 1 hour at room temperature. This process was repeated four times, and the change in hardness before and after the treatment was measured using the rheometer described above. Measure the load (g) when the needle thickness is 1mmφ, 3mm, and the rate of decrease is less than 20% ◎, less than 20-30% ○, more than 30-40% △ when less than, and x when 40% or more.

* 1 Containing raw material powders of 2-ethylhexanoylglutamic acid dibutylamide and lauroylglutamic acid dibutylamide at a mass ratio of 1/1 As is apparent from the results in Table 3, a comparative example corresponds to the conventional frame kneading method. However, none of the ease of removal from the mold, strength, transparency with time, and meltability were satisfactory. Compared with this, it was found that Examples 1 to 4 were remarkably superior in ease of detachment from the mold, hardness, transparency, and unraveling property. In Comparative Example 1 in which the solid gelling agent is added separately, the gelling agent remains undissolved due to the aqueous system even when heated to 95 ° C., and therefore, it is unsatisfactory below or equal to Comparative Example 2 on any evaluation axis. Stayed in results. In addition, it is clear from the results in Table 3 that a soap having excellent ease of removal, hardness, transparency, and unbreakability could be obtained without using ethanol.
[Example 5, Comparative Example 3] Preparation of mechanical kneading method solid detergent composition The total amount of the blended formulation shown in Table 4 was roughly mixed by passing it through a three-roll kneader (manufactured by Nippon Kakko) three times at room temperature, Next, a kneader-extruder (manufactured by Nippon Kako) was passed three times at 45 ° C. to obtain a rod-shaped molded product having a diameter of about 40 mm. About 70 mm each was stamped into a size of 50 mm × 40 mm × 15 mm with a molding machine (manufactured by Nippon Kako) to obtain several solid detergent compositions. As evaluation items, soap strength and foam quality during foaming were evaluated. Hereinafter, the “sample” means a stamped “solid detergent composition in units of 50 mm × 40 mm × 15 mm”.
[Soap hardness]
Hardness was measured using a rheometer (Fudo: NRM-2010J-CW) at 25 ° C. and a moving speed of 6 cm / min with a 1 mm diameter needle entering the sample and measuring the load (kg) when entering 3 mm. ◎ when the strength is 1.4 kg or more, ◯ when the strength is 1.1 kg or more and less than 1.4 kg, Δ when the strength is 0.8 kg or more and less than 1.1 kg, and x when it is less than 0.8 kg.
[Foam quality (creamy)]
The sample was wetted with warm water of about 35 ° C. and rubbed with both hands 20-30 times to be foamed. The creaminess was determined by visually observing the foam quality of the foamed foam based on the following criteria.
When the bubbles were fine and extremely uniform, ◎, when most of the bubbles were fine, ○, when large bubbles occupied the majority, Δ, when the bubbles were large and poorly retained, ×.

In the solid detergent composition of Comparative Example 3 corresponding to the conventional mechanical kneading method, the soap strength and foam quality were not satisfactory, whereas the solid detergent composition of Example 5 was soap strength, It was clear from the results in Table 4 that the foam quality was remarkably improved.
[Composition Examples 1-12]
Hereinafter, formulation examples of the frame kneading method solid detergent composition will be shown.

Hereinafter, the compounding example of the mechanical kneading method solid cleaning composition is shown.

It is significant that it has become possible to provide a solid detergent composition that can increase hardness without impairing foaming and prevent melting and collapsing. In particular, for transparent solid detergents, it is important to be able to provide a very simple production method that can reduce production time by eliminating the need for lower monohydric alcohol and aging process, and improving transparency and sustainability. deep.

Claims

A thickener for producing a solid detergent, comprising a gelling agent and a polyhydric alcohol and / or a higher alcohol.
The thickener for producing a solid detergent according to [1], wherein the gelling agent is an acylamino acid amide.
The thickener for producing a solid detergent according to [2], wherein the acylamino acid amide is one or more members selected from the group consisting of lauroylglutamic acid dibutylamide and 2-ethylhexanoylglutamic acid dibutylamide.
The thickener for producing a solid detergent according to [2], wherein the acylamino acid amide is a mixture of lauroylglutamic acid dibutylamide and 2-ethylhexanoylglutamic acid dibutylamide in a mass ratio of 2: 8 to 8: 2. .
The thickener for producing a solid detergent according to [1] to [4], wherein the dissolution temperature is 40 ° C to 110 ° C.
A solid detergent composition comprising the thickener for producing the solid detergent according to [1] to [5].
[6] The solid detergent composition according to [6], which contains 5 to 40% by mass of water based on the total amount of the solid detergent composition.
[6] The solid detergent composition according to [6], which contains 25 to 40% by mass of water based on the total amount of the solid detergent composition.
A step of dissolving a higher fatty acid or a salt thereof by heating; a step of adding a thickener for producing a solid detergent according to [1] to [5] and stirring with heating;
Cooling step;
The manufacturing method of the solid cleaning composition containing this.
A step of kneading a surfactant and a thickener for producing a solid detergent according to [1] to [5];
The manufacturing method of the solid cleaning composition containing this.
The method according to any one of [9] to [10], further comprising adding water so as to be 5 to 40% by mass relative to the total amount of the solid detergent composition.
The method according to any one of [9] to [10], further comprising adding water so as to be 25 to 40% by mass relative to the total amount of the solid detergent composition.
[9] A solid detergent composition obtained by the production method according to any one of [12].