JP2018009146A - Cleaning composition - Google Patents

Abstract

[PROBLEMS] To provide a cleaning composition for acylamino acids having good foaming and foam retention effects, quick rinsing and excellent skin feel after drying.
A cleaning composition containing the following components (A), (B) and (C), wherein the weight ratio of (A) / (B) is 0.2 to 5 and ((A) + (B) ) / (C) weight ratio is 2.5 to 10.0:
(A) N-lauroylglycine or a salt thereof (B) N-myristoylglycine or a salt thereof (C) an N-acyl acidic amino acid having an acyl group having 8 to 24 carbon atoms or a salt thereof.
[Selection figure] None

Description

  The present invention relates to a detergent composition excellent in foam characteristics, rinsing and feel after washing.

  In recent years, there has been a demand for cleaners for the body and hair that have not only high detergency but also low skin irritation and good usability. Among these, amino acid-based detergent components are attracting attention. For example, detergents that combine acyl acidic amino acids and acyl neutral amino acids (Patent Documents 1 and 2), N-lauroyl glycine salts, and N-myristoyl glycine salts. A combined cleaning agent (Patent Document 3) has been studied. However, if there is a problem with foaming, or if the amount of acyl glutamate characterized by mildness that gives moist feeling is high, for example, among acyl acidic amino acids, slow rinsing and give a slimy feeling. It has been known.

Japanese Unexamined Patent Publication No. 5-156287 Japanese Patent Laid-Open No. 11-323379 JP 2001-31993

  It is an object of the present invention to provide a cleaning composition having good foaming and foam retention effects, quick rinsing and excellent skin feel after drying.

  As a result of intensive studies to solve the above problems, the present inventors have identified N-lauroylglycine or a salt thereof, N-myristoylglycine or a salt thereof, and a specific N-acyl acidic amino acid or a salt thereof. By blending with ingredients to make a composition with a specific blending ratio, it has excellent foaming and foam retention effects, quick rinsing, refreshing after drying but feeling moist, etc. The present invention has been completed.

That is, the present invention is as follows.
[1] A cleaning composition containing the following components (A), (B) and (C), wherein the weight ratio of (A) / (B) is 0.2 to 5 and ((A) + (B)) / C ratio by weight is 2.5 to 10.0.
(A) N-lauroylglycine or a salt thereof (B) N-myristoylglycine or a salt thereof (C) an N-acyl acidic amino acid having an acyl group having 8 to 24 carbon atoms or a salt thereof.
[2] The detergent composition according to [1], wherein the acidic amino acid of (C) is glutamic acid or aspartic acid.
[3] The detergent composition according to [1] or [2], wherein the salt of (C) an N-acyl acidic amino acid is a salt with at least one selected from the group consisting of sodium, potassium and triethanolamine. .
[4] (C) is at least one selected from the group consisting of N-lauroyl glutamic acid, N-myristoyl glutamic acid, N-cocoyl glutamic acid, sodium salts thereof, potassium salts thereof and triethanolamine salts thereof. The cleaning composition according to any one of [1] to [3].
[5] The detergent composition according to [1] to [4], wherein the salt of (A) N-lauroylglycine is a salt with at least one selected from the group consisting of sodium, potassium and triethanolamine.
[6] The detergent composition according to [1] to [5], wherein the salt of (B) N-myristoylglycine is a salt with at least one selected from the group consisting of sodium, potassium and triethanolamine.
[7] The cleaning composition according to [1] to [6], which is a liquid.
[8] The cleaning composition according to [7], wherein the pH is 6 to 10.

ADVANTAGE OF THE INVENTION According to this invention, the detergent composition excellent in usability | operativity, such as foaming power, such as foaming and foam holding | maintenance, and quickness can be provided.
ADVANTAGE OF THE INVENTION According to this invention, the washing | cleaning agent composition which can provide the moist washability which remained moisturizing property after washing | cleaning can be provided.

The present invention
(A) N-lauroylglycine or a salt thereof, (B) N-myristoylglycine or a salt thereof and (C) an N-acyl acidic amino acid having an acyl group having 8 to 24 carbon atoms or a salt thereof in a specific ratio (Hereinafter sometimes abbreviated as the cleaning composition of the present invention).

(A) Examples of the salt of N-lauroylglycine include alkali metal salts such as lithium salt, sodium salt and potassium salt; alkaline earth metal salts such as calcium salt and magnesium salt; monoethanolamine, diethanolamine and triethanolamine (TEA ) Alkanolamine salts such as salts; ammonium salts; and basic organic salts. Of these, alkali metal salts and alkanolamine salts are preferable, and sodium salts, potassium salts, and triethanolamine salts are more preferable in obtaining foams having excellent foaming and foam retention.
In addition, when preparing the cleaning composition of the present invention, component (A) is added together with N-lauroylglycine and a substance that forms the above salt (for example, sodium hydroxide, potassium hydroxide, TEA, etc.). It may be neutralized and in the form of a salt.

(B) As salts of N-myristoylglycine, alkali metal salts such as lithium salt, sodium salt and potassium salt; alkaline earth metal salts such as calcium salt and magnesium salt; monoethanolamine, diethanolamine, triethanolamine (TEA) ) Alkanolamine salts such as salts; ammonium salts; and basic organic salts. Of these, alkali metal salts and alkanolamine salts are preferable, and sodium salts, potassium salts, and triethanolamine salts are more preferable in obtaining foams having excellent foaming and foam retention.
In addition, when preparing the cleaning composition of the present invention, component (B) is added together with N-myristoylglycine and a substance that forms the above salt (for example, sodium hydroxide, potassium hydroxide, TEA, etc.). It may be neutralized and in the form of a salt.

  As the component (C) N-acyl acidic amino acid or salt thereof in the present invention, any of D-form, L-form and DL-form can be used. These N-acyl acidic amino acids or salts thereof may be used alone or in admixture of two or more at any ratio.

  The acyl group of the component (C) N-acyl acidic amino acid or a salt thereof in the present invention is an acyl group derived from a fatty acid having 8 to 24 carbon atoms, and an acyl derived from a fatty acid having 8 to 22 carbon atoms. Group is preferable, and an acyl group derived from a fatty acid having 8 to 18 carbon atoms is more preferable. Examples of the acyl group include lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, isostearic acid and the like, and mixtures thereof such as beef tallow fatty acid, coconut oil fatty acid, palm kernel oil fatty acid and the like. An acyl group derived from lauric acid, myristic acid or coconut oil fatty acid is preferred, and an acyl group derived from lauric acid or coconut oil fatty acid is more preferred.

  Although it will not specifically limit if it is an acidic amino acid as an acidic amino acid in the component (C) in this invention, Glutamic acid, aspartic acid, etc. are mentioned, Glutamic acid and aspartic acid are preferable.

Examples of N-acyl acidic amino acid salts include alkali metal salts such as lithium salts, sodium salts and potassium salts; alkaline earth metal salts such as calcium salts and magnesium salts; monoethanolamine, diethanolamine and triethanolamine (TEA) salts. Alkanolamine salts such as ammonium salts, and basic organic salts. Of these, alkali metal salts and alkanolamine salts are preferable, and sodium salts, potassium salts, and triethanolamine are more preferable in obtaining foams having excellent foaming and storage stability.
In addition, when preparing the cleaning composition of the present invention, component (C) is added together with an N-acyl acidic amino acid and a substance that forms the above salt (for example, sodium hydroxide, potassium hydroxide, TEA, etc.). It may be neutralized to form a salt. Furthermore, the component (C) may contain an unneutralized N-acyl acidic amino acid.

  Specific examples of N-acyl acidic amino acid salts used in the present invention include N-lauroyl glutamic acid, N-myristoyl yl glutamic acid, N-cocoyl (coconut oil fatty acid acyl) glutamic acid, N-lauroyl aspartic acid, N-myristoyl yl. Examples include aspartic acid, monosodium salt, monopotassium salt, and triethanolamine salt of N-cocoylaspartic acid. These may be used alone or in combination of two or more. Among them, N-lauroyl glutamic acid, N-myristoyl glutamic acid, sodium salt, potassium salt or triethanolamine salt of N-cocoyl glutamic acid, or a mixture thereof is preferable. N-lauroyl glutamic acid, potassium salt of N-cocoyl glutamic acid, sodium salt Or a triethanolamine salt or a mixture thereof is more preferable.

  In the cleaning composition of the present invention, the weight ratio of (A) / (B) is 0.2 to 5. The weight ratio (A) / (B) is preferably 0.3 to 3.5, and more preferably 0.4 to 2.3. If it is this range, the cleaning composition excellent in the usability | use_condition etc. can be provided.

  In the cleaning composition of the present invention, the weight ratio of ((A) + (B)) / (C) is 2.5 to 10.0. The weight ratio of ((A) + (B)) / (C) is preferably 3.0 to 9.5, more preferably 3.5 to 9.0. If it is this range, the cleaning composition excellent in the usability | use_condition, the speed of rinse, foam retention power, the moist feeling after drying, etc. can be provided.

  In (A), (B) and (C) in the present invention, synthetic products or commercially available products can be used.

  It does not specifically limit as a form of the cleaning composition of this invention, Arbitrary forms, such as solid, liquid, paste, gel, powder, granule, cream, are mentioned. Among these, liquids, powders, and granules are preferable because of excellent handling, and liquids are particularly preferable.

The pH when the cleaning composition of the present invention is a liquid cleaning composition is usually 6 to 10, preferably 7 to 10, and more preferably 7.5 to 9.5. If it is this range, the cleaning composition excellent in the usability | use_condition can be provided.
The pH when the cleaning composition of the present invention is other than a liquid is defined as the pH in a 10% aqueous solution (25 ° C.) and conforms to the above pH range.

  The cleaning composition of the present invention can be produced by a method known per se. For example, the above-mentioned mixture of each component and other additives are mixed, and this mixture is heated in an appropriate solvent such as water, usually at 80 to 90 ° C. for 5 to 10 minutes to uniformly dissolve each component. To do. The obtained composition can be prepared into a desired form of a cleaning composition by a method known per se. For example, each component can be uniformly dissolved by heating, poured into a mold, solidified by cooling, and dried and aged to obtain a solid detergent composition.

  When the cleaning composition of the present invention is liquid, the total content of components (A), (B) and (C) is usually 15 to 40% by weight, preferably 20 to 35% by weight, more preferably 25 to 25% by weight. It can be prepared by a method known per se by adding a suitable solvent so as to be 30% by weight.

In the cleaning composition of the present invention, various commonly used additives can be added as long as the effects of the present invention are not impaired.
For example, higher alcohols such as cetyl alcohol, stearyl alcohol, behenyl alcohol, isostearyl alcohol, octyldodecanol, oleyl alcohol, myristyl alcohol, higher fatty acids such as hardened beef tallow fatty acid, coconut oil fatty acid, palm oil fatty acid and their salts (number of carbon atoms) 6-24 fatty acids or salts thereof), humectants such as trimethylglycine, anionic surfactants (excluding (C) in the present invention), cationic surfactants, amphoteric surfactants, nonionic interfaces Surfactants such as active agents, vegetable oils, animal fats and oils, natural fats and oils derivatives, mineral fats and oils, synthetic fats and oils such as lower and higher fatty acid esters, silicone compounds, polymer substances, animal and plant extracts, amino acids, nucleic acids, vitamins , Enzymes, anti-inflammatory agents, bactericides, antiseptics, antioxidants, UV absorption Standards for cosmetic ingredients such as chelating agents, antiperspirants, oxidation dyes, pH adjusters, pearlizing agents, standard ingredients for cosmetic ingredients, quasi-drug ingredients standards, Japanese pharmacopoeia, Japanese pharmacopoeia ingredient standards, food additives Examples include raw materials described in various official documents such as official official documents.

  The cleaning composition of the present invention can be used in shampoos, facial cleansers, body shampoos, hand soaps, shaving agents, kitchen cleaners, and laundry detergents, depending on the intended use.

  EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, this invention is not limited to these Examples. In the present specification, “%” means “% by weight” unless otherwise specified.

[Preparation of cleaning composition]
Each component of the quantity shown to Tables 1-4 is mixed, and this mixture is heated at 70-80 degreeC, and each component is melt | dissolved uniformly. After cooling, potassium hydroxide was added to adjust the pH to 9.0 to obtain a liquid detergent composition (values of each component in the table indicate% by weight).

Lauroylglycine potassium (Synthesis Example 1)
45.99 g (0.61 mol) of glycine, 94.94 (0.47 mol) of lauric acid, 29.09 g (0.44 mol) of 85% potassium hydroxide and 35.30 g of purified water were mixed, and the mixture was 150 ° C. under a nitrogen stream. For 15 hours. After the reaction, 188.59 g of the obtained product was diluted with 274.71 g of purified water to obtain an aqueous potassium lauroylglycine solution.

Myristoylglycine potassium (Synthesis Example 2)
43.09 g (0.57 mol) of glycine, 101.49 (0.45 mol) of myristic acid, 27.20 g (0.41 mol) of 85% potassium hydroxide and 33.02 g of purified water were mixed, and 150 ° C. under a nitrogen stream. For 15 hours. After the reaction, 191.33 g of the obtained product was diluted with 290.18 g of purified water to obtain a potassium myristoylglycine aqueous solution.

Potassium lauroyl glutamate (Synthesis Example 3)
240 g (1.28 mol) of monosodium L-glutamate monohydrate was suspended in 377 mL of purified water, and 130.9 g of 48% potassium hydroxide was added thereto to prepare a pH 11.5 aqueous solution. Cooled to. To this, 259.2 g of lauric acid chloride and 165.9 g of 48% aqueous potassium hydroxide solution were added dropwise at the same time, and then the temperature of the reaction system was raised to 30 ° C. and stirred for 1.5 hours, and further raised to 70 ° C. Stir for 1 hour to complete the reaction. Purified water and 35% hydrochloric acid were added to the obtained reaction product to obtain a potassium lauroyl glutamate aqueous solution adjusted to pH 8.9.

Potassium cocoyl glutamate (Synthesis Example 4)
120 g (0.64 mol) of monosodium L-glutamate monohydrate was suspended in 188.4 mL of purified water, and 65.5 g of 48% potassium hydroxide was added thereto to prepare an aqueous solution having a pH of 11.5. Cooled to 15 ° C. To this, 129.6 g of coconut oil fatty acid chloride and 82.9 g of 48% potassium hydroxide aqueous solution were dropped simultaneously, and then the temperature of the reaction system was raised to 30 ° C., and stirring was continued for 1.5 hours, and further to 70 ° C. The mixture was stirred for 1 hour to complete the reaction. Purified water and 35% hydrochloric acid were added to the obtained reaction product to obtain a potassium cocoyl glutamate aqueous solution adjusted to pH 8.9.

  About each cleaning composition obtained according to the above, various characteristics were evaluated on the following references | standards. The results are shown in Tables 1-4.

[Bubbling, foam retention]
Each composition was adjusted to 0.24% with ion-exchanged water, and 50 mL was stirred for 5 seconds with a home-use mixer (trade name “Mirther”, manufactured by Iwatani Corp.), then left still for 1 minute and 5 minutes. The amount of subsequent foam (mL) was measured.

The “bubble amount” was evaluated based on the bubble amount (mL) after 1 minute.
◎; 260 or more ○; 240 or more and less than 260 Δ; 230 or more and less than 260 ×;

“Bubble retention” was evaluated by measuring the amount of foam (mL) after 5 minutes and using the amount of foam after 5 minutes / 1.
◎; 90 or more ○; 85 or more and less than 90 △; 80 or more and less than 85 ×; less than 80

[Usage feeling]
Panelists of 10 men and women use each composition to wash their hands with tap water at 40 ° C, and evaluate each composition in terms of foaming (foam), ease of rinsing, and hand feel after drying according to the following criteria: did.

Regarding “foaming (foam)”, 3 was good, 2 was normal, 1 was weak.
Regarding “ease of rinsing”, it was 3; fast, 2; normal, 1; slow.
Regarding “feel after drying”, 3: moist feeling and refreshing feeling, 2; normal, 1; lacking moist feeling and refreshing feeling.

In addition, the average value by the reference | standard shown above was computed, and it evaluated as follows by the average value.
Good (◯); 2.2 or more Normal (Δ); 1.3 or more and less than 2.2 Defect (x); Less than 1.3.

  It was confirmed that the cleaning compositions of Examples 1 to 12 were excellent in foaming and foam retention, and had a good feeling of use required for the cleaning composition.

  According to the present invention, it is possible to provide a cleaning agent that is excellent in foaming and foam retention and has a good feeling of use.

Claims (8)

A cleaning composition containing the following components (A), (B) and (C), wherein the weight ratio of (A) / (B) is 0.2 to 5 and ((A) + (B) ) / (C) weight ratio is 2.5 to 10.0:
(A) N-lauroylglycine or a salt thereof (B) N-myristoylglycine or a salt thereof (C) an N-acyl acidic amino acid having an acyl group having 8 to 24 carbon atoms or a salt thereof.   The detergent composition according to claim 1, wherein the acidic amino acid of (C) is glutamic acid or aspartic acid.   (C) The detergent composition according to claim 1 or 2, wherein the salt of the N-acyl acidic amino acid is a salt with at least one selected from the group consisting of sodium, potassium and triethanolamine.   (C) is at least one selected from the group consisting of N-lauroyl glutamic acid, N-myristoyl glutamic acid, N-cocoyl glutamic acid, sodium salts thereof, potassium salts thereof and triethanolamine salts thereof. The cleaning composition of any one of 1-3.   (A) The detergent composition according to any one of claims 1 to 4, wherein the salt of N-lauroylglycine is a salt with at least one selected from the group consisting of sodium, potassium and triethanolamine.   (B) The detergent composition according to any one of claims 1 to 5, wherein the salt of N-myristoylglycine is a salt with at least one selected from the group consisting of sodium, potassium and triethanolamine.   It is a liquid, The cleaning composition of any one of Claims 1-6.   The cleaning composition according to claim 7, wherein the pH is 6 to 10.