Cleaning agent

Abstract

The present invention provides a cleaning agent that can be given an excellent thickening effect by adding a cleaning agent thickener to the cleaning composition. [Solution] A detergent characterized by containing the following components (A) and (B) as thickeners for detergents. Component (A): (A-1) Polyglycerin fatty acid ester in which the fatty acid has 12 to 14 carbon atoms and the average degree of polymerization of polyglycerin is 3 to 6. Ingredient (B): (B-1) A propylene glycol fatty acid ester in which the fatty acid is one or more selected from caprylic acid, capric acid, myristic acid, oleic acid, and isostearic acid, and (B-2) Butylene glycol fatty acid ester in which the fatty acid is one or more selected from caprylic acid, capric acid, lauric acid, myristic acid, oleic acid, and isostearic acid. At least one selected from the group consisting of the following.

Description

Technical Field

[0001] The present invention relates to a detergent containing a thickener for detergents that can impart an excellent thickening effect.

Background Art

[0002] Thickeners are generally added to all types of detergents such as shampoos, body washes, facial cleansing foams, hand soaps, and liquid kitchen detergents to improve performance and handling properties. Patent Document 1 reports that when an anionic surfactant such as an alkyl sulfate or an alkyl sulfonate is used as the main detergent component, a thickening effect is exhibited by adding a specific propylene glycol monolaurate.

[0003] On the other hand, in recent years, acyl amino acid-based surfactants have often been used for the purpose of reducing irritation, and it is known that it is more difficult to form viscosity in detergents containing these surfactants. Patent Document 2 reports that appropriate thickening properties can be imparted by blending an N-long-chain acyl acidic amino acid and / or a salt thereof with an amphiphilic substance, an inorganic salt, and water at specific ratios. However, sufficient viscosity cannot be obtained only with the above technique, and in actual formulation examples, other thickeners such as cocamide DEA are also used in combination, leaving problems unsolved.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] The object of the present invention has been addressed in view of the problems of the prior art described above, and is to provide a detergent that can impart an excellent thickening effect even to a detergent that mainly uses an acyl amino acid-based surfactant as a cleaning component. [Means for solving the problem]

[0006] As a result of diligent research by the present inventors, at least one selected from the group consisting of (A-1) polyglycerin fatty acid esters in which the fatty acid has 12 to 14 carbon atoms and the average degree of polymerization of polyglycerin is 3 to 6, (B-1) propylene glycol fatty acid esters in which the fatty acid is one or more selected from caprylic acid, capric acid, myristic acid, oleic acid, and isostearic acid, and (B-2) butylene glycol fatty acid esters in which the fatty acid is one or more selected from caprylic acid, capric acid, lauric acid, myristic acid, oleic acid, and isostearic acid, or (A-2) monoglycerin fat in which the fatty acid has 8 to 14 carbon atoms We have discovered that an excellent thickening effect can be imparted by combining an acid ester and / or a diglycerin fatty acid ester with at least one selected from the group consisting of (B-1) a propylene glycol fatty acid ester in which the fatty acid is one or more selected from caprylic acid, capric acid, myristic acid, oleic acid, and isostearic acid, (B-2) a butylene glycol fatty acid ester in which the fatty acid is one or more selected from caprylic acid, capric acid, lauric acid, myristic acid, oleic acid, and isostearic acid, and (B-3) a propylene glycol fatty acid ester in which the fatty acid is lauric acid, and have thus completed the present invention. [Effects of the Invention]

[0007] The present invention, by using a thickening agent for detergents, can impart sufficient viscosity even when using acyl amino acid-based surfactants, which tend to have low viscosity, as the main cleaning component, thereby providing a detergent with good performance and handling properties. [Modes for carrying out the invention]

[0008] The embodiments for carrying out the present invention will be described in more detail below. The detergent of the present invention contains components (A) and (B) as thickeners for detergents.

[0009] <Component (A): Glycerin fatty acid ester and / or polyglycerin fatty acid ester> Component (A) is at least one selected from the group consisting of (A-1) polyglycerol fatty acid esters in which the fatty acid has 12 to 14 carbon atoms and the average degree of polymerization of polyglycerol is 3 to 6, and (A-2) monoglycerol fatty acid esters and / or diglycerol fatty acid esters in which the fatty acid has 8 to 14 carbon atoms. Component (A) may be at least one of (A-1) and (A-2), or both (A-1) and (A-2).

[0010] The (A-1) polyglycerol fatty acid ester used in the present invention is characterized in that the fatty acid has 12 to 14 carbon atoms and the average degree of polymerization of the polyglycerol is 3 to 6.

[0011] The (A-1) of the present invention is not particularly limited, but examples include triglyceryl laurate, tetraglyceryl laurate, hexaglyceryl laurate, triglyceryl myristate, tetraglyceryl myristate, and hexaglyceryl myristate. Commercially available products include "NIKKOL Triglyn 1-L" (manufactured by Nikko Chemicals Co., Ltd.), "NIKKOL Hexaglyn 1-L" (manufactured by Nikko Chemicals Co., Ltd.), and "NIKKOL Hexaglyn 1-M" (manufactured by Nikko Chemicals Co., Ltd.).

[0012] Component (A-1) may be a single polyglycerin fatty acid ester or a combination of two or more. Among these, triglyceryl laurate is preferred. The amount of component (A-1) is 0.1 to 10% by mass, more preferably 0.1 to 5% by mass, and even more preferably 0.5 to 3% by mass of the total amount of the detergent.

[0013] The (A-2) monoglycerol fatty acid ester and / or diglycerol fatty acid ester used in the present invention is characterized in that the fatty acid has 8 to 14 carbon atoms.

[0014] The (A-2) of the present invention is not particularly limited, but examples include monoglyceryl caprylate, diglyceryl caprylate, monoglyceryl caprate, diglyceryl caprate, monoglyceryl undecylenate, diglyceryl undecylenate, monoglyceryl laurate, diglyceryl laurate, monoglyceryl myristate, and diglyceryl myristate. Commercially available products include "NIKKOL MGU" (manufactured by Nikko Chemicals Co., Ltd.), "Poem DL-100" (manufactured by Riken Vitamin Co., Ltd.), and "NIKKOL MGM" (manufactured by Nikko Chemicals Co., Ltd.).

[0015] Component (A-2) may be a monoglycerin fatty acid ester and / or a diglycerin fatty acid ester alone, or a combination of two or more. Among these, diglyceryl caprate and diglyceryl laurate are preferred. The amount of component (A-2) is 0.1 to 10% by mass, more preferably 0.1 to 5% by mass, and even more preferably 0.5 to 3% by mass of the total amount of the detergent.

[0016] <Component (B): Propylene glycol fatty acid ester and / or butylene glycol fatty acid ester> Component (B) is at least one selected from the group consisting of (B-1) a propylene glycol fatty acid ester in which the fatty acid is one or more selected from caprylic acid, capric acid, myristic acid, oleic acid, and isostearic acid; (B-2) a butylene glycol fatty acid ester in which the fatty acid is one or more selected from caprylic acid, capric acid, lauric acid, myristic acid, oleic acid, and isostearic acid; and (B-3) a propylene glycol fatty acid ester in which the fatty acid is lauric acid. Component (B) may be at least one of (B-1) to (B-3), and may be a combination of two or more.

[0017] The (B-1) propylene glycol fatty acid ester according to the present invention is characterized in that the fatty acids are caprylic acid, capric acid, myristic acid, oleic acid, and isostearic acid.

[0018] (B-1) according to the present invention is not particularly limited, and examples thereof include propylene glycol monocaprylate, propylene glycol monocaprate, propylene glycol monomyristate, propylene glycol monooleate, and propylene glycol monoisostearate. Examples of commercially available products include "NIKKOL Sefsol-218" (manufactured by Nikko Chemicals Co., Ltd.).

[0019] Component (B-1) may be a single type of propylene glycol fatty acid ester, or a combination of two or more types. Among these, propylene glycol monocaprate is preferred. The blending amount of component (B-1) is 0.1 to 10% by mass based on the total amount of the detergent, more preferably 0.1 to 5% by mass, and still more preferably 0.5 to 3% by mass.

[0020] The (B-2) butylene glycol fatty acid ester according to the present invention is characterized in that the fatty acids are caprylic acid, capric acid, lauric acid, myristic acid, oleic acid, and isostearic acid.

[0021] (B-2) according to the present invention is not particularly limited, and examples thereof include butylene glycol monocaprylate, butylene glycol monocaprate, butylene glycol monolaurate, butylene glycol monomyristate, butylene glycol monooleate, and butylene glycol monoisostearate. Examples of commercially available products include "Compole BL" (manufactured by NOF Corporation).

[0022] Component (B-2) may be a single type of butylene glycol fatty acid ester alone, or may be a combination of two or more types. Among these, butylene glycol monolaurate is preferred. The blending amount of component (B-2) is 0.1 to 10% by mass based on the total amount of the detergent, more preferably 0.1 to 5% by mass, still more preferably 0.5 to 3% by mass.

[0023] The (B-3) propylene glycol fatty acid ester according to the present invention is characterized in that the fatty acid is lauric acid.

[0024] Component (B-3) according to the present invention is not particularly limited, and examples thereof include propylene glycol monolaurate. Commercially available products include "Type BP" (manufactured by Riken Vitamin Co., Ltd.), "Unisafe PGML" (manufactured by NOF Corporation), and the like.

[0025] The blending amount of component (B-3) is 0.1 to 10% by mass based on the total amount of the detergent, more preferably 0.1 to 5% by mass, still more preferably 0.5 to 3% by mass.

[0026] The blending amount of component (A) glycerin fatty acid ester and / or polyglycerin fatty acid ester used in the present invention is 0.1 to 10% by mass based on the total amount of the detergent, more preferably 0.1 to 5% by mass, still more preferably 0.5 to 3% by mass. Within this range, it is preferable from the viewpoints of dischargeability from a pump and ease of spreading when formed into a detergent.

[0027] The blending amount of component (B) propylene glycol fatty acid ester and / or butylene glycol fatty acid ester used in the present invention is 0.1 to 5% by mass based on the total amount of the detergent, more preferably 0.5 to 3% by mass. Within this range, it is preferable from the viewpoints of dischargeability from a pump and ease of spreading when formed into a detergent.

[0028] In the present invention, the ratio of component (A) glycerin fatty acid ester and / or polyglycerin fatty acid ester to component (B) propylene glycol fatty acid ester and / or butylene glycol fatty acid ester is 0.1 to 7, more preferably 0.3 to 4, and even more preferably 1 to 3.

[0029] In the present invention, the combined amount of component (A) glycerin fatty acid ester and / or polyglycerin fatty acid ester and component (B) propylene glycol fatty acid ester and / or butylene glycol fatty acid ester (component (A) + component (B)) is 0.5 to 15% by mass, more preferably 1 to 10% by mass, and even more preferably 2 to 6% by mass, of the total amount of the detergent. Within this range, it is preferable from the viewpoint of dischargeability from the pump and ease of spreading when used as a detergent.

[0030] The detergents used in this invention are not particularly limited and include a range of products such as hair shampoos, body shampoos, facial cleansers, makeup removers, hand soaps, and liquid dish soaps, regardless of whether they are water-based or emulsion-based.

[0031] The present invention will be further described below with reference to examples, but the present invention is not limited thereto. In the following examples, unless otherwise specified, the amount of each ingredient refers to mass percent. [Examples]

[0032] The viscosity-enhancing performance of the present invention was evaluated in detergents using the product of this invention. 1. Preparation method Standard products 1-15, inventive products 1-19, and comparative products 1-4 were prepared by measuring and uniformly mixing the detergent components shown in Tables 1-5. 2. Evaluation of thickening performance The viscosity at 25°C was measured using a B-type viscometer. The conditions were rotor No. 3, rotation speed 30 rpm, and viscosity after 30 seconds was recorded. The viscosity enhancement performance evaluation results described in Tables 1-5 represent the viscosity change compared to the viscosity of the standard product, and are expressed as follows based on the degree of viscosity enhancement. <Notation used in the evaluation of thickening performance> -: No decrease in viscosity or change in viscosity was observed compared to the standard product. +: Compared to the standard product, an increase in viscosity (~200 mPa·s) was observed. ++: Viscosity increased significantly compared to the standard product. (200-1000 mPa·s) +++: Viscosity increased significantly compared to the standard product. (1000 mPa·s or more)

[0033] Comparing the results in Tables 1 and 3, product 1 of the present invention increased in viscosity compared to standard product 1, product 2 increased in viscosity compared to standard product 5, and products 3 to 7 all increased in viscosity compared to standard product 7. In contrast, comparative products 1 and 2 did not increase in viscosity compared to standard products 1 and 5, respectively. From this, it became clear that the present invention can increase the viscosity of detergents by appropriately selecting the type of (A-1) polyglycerin fatty acid ester, (A-2) monoglycerin fatty acid ester, and / or diglycerin fatty acid ester.

[0034] Comparing the results in Tables 1 and 4, products 8-13 of the present invention increased in viscosity compared to standard products 1-6. In contrast, comparative products 3 and 4 did not increase in viscosity compared to standard products 8 and 9. From this, it became clear that the present invention can increase the viscosity of detergents by appropriately selecting the type of (B-1) propylene glycol fatty acid ester, (B-2) butylene glycol fatty acid ester, and (B-3) propylene glycol laurate.

[0035] Comparing the results in Tables 2 and 5, products 14-19 of the present invention were found to be more viscous than standard products 10-15. This indicates that the present invention can increase the viscosity of detergents by appropriately selecting the blending ratio and amount of component (A) glycerin fatty acid ester and / or polyglycerin fatty acid ester and component (B) propylene glycol fatty acid ester and / or butylene glycol.

[0036] [Table 1]

[0037] [Table 2]

[0038] [Table 3]

[0039] [Table 4]

[0040] [Table 5]

[0041] Examples containing a thickening agent for detergents are shown below. In all of Examples 1 to 4, a superior thickening effect was observed compared to cases in which the product of the present invention did not contain the components corresponding to (A-1) polyglycerin fatty acid ester, (A-2) monoglycerin fatty acid ester, and / or diglycerin fatty acid ester.

[0042] Example 1: Shampoo Sodium Cocoyl Methyl Taurate 4.50 (mass%) Sodium Lauroyl Methylalanine 1.50 Cocamidopropyl betaine 4.50 Lauryl betaine 1.75 Polyquaternium-10 0.40 (Caprylyl / Capryl) Glucoside 0.52 Glycerin 1.00 1,3-Butylene glycol 1.00 Propylene glycol laurate 2.00 Diglyceryl caprate 2.00 Appropriate amount of citric acid Sodium citrate (appropriate amount) Preservative (appropriate amount) Purified water remainder Total amount 100.00 (Preparation method) Mix all ingredients uniformly. (Results) When the viscosity of Example 1 was measured using the same method as in the example, it showed a viscosity of 4000 mPa·s or higher. When diglyceryl caprate was removed from Example 1, the viscosity was 2900 mPa·s, confirming the thickening effect of the present invention.

[0043] Example 2: Hand soap Sodium lauroyl methylalanine 4.50 (mass%) Cocamidopropyl betaine 4.50 (Caprylyl / Capryl) Glucoside 2.60 Glycerin 2.00 Propanediol 3.00 Propylene glycol caprate 1.50 Diglyceryl caprylate 2.00 Appropriate amount of citric acid Sodium citrate (appropriate amount) Preservative (appropriate amount) Purified water remainder Total amount 100.00 (Preparation method) Mix all ingredients uniformly. (Results) When the viscosity of Example 2 was measured using the same method as in the Examples, it showed a viscosity of 3100 mPa·s. When diglyceryl caprylate was removed from Example 2, the viscosity was 670 mPa·s, confirming the thickening effect of the present invention.

[0044] Example 3: Body Shampoo TEA cocoyl glutamate 9.00 (mass%) Sodium trideceth-4 carboxylate 5.00 Sodium cocoamphoacetate 4.00 1,3-Butylene glycol 5.00 Propylene glycol oleate 2.00 Triglyceryl laurate 0.80 EDTA-2Na appropriate amount Preservative (appropriate amount) Purified water remainder Total amount 100.00 (Preparation method) Mix all ingredients uniformly. (Results) When the viscosity of Example 3 was measured using the same method as in the other examples, it showed a viscosity of 4000 mPa·s or higher. When triglyceryl laurate was removed from Example 3, the viscosity was 2200 mPa·s, confirming the thickening effect of the present invention.

[0045] Example 4: Shampoo Sodium laureth sulfate 5.40 (mass%) TEA lauryl sulfate 4.20 Sodium lauroamphoacetate 2.90 Polyquaternium-10 0.30 1,3-Butylene glycol 3.00 Butylene glycol laurate 1.00 Hexaglyceryl myristate 1.00 EDTA-2Na appropriate amount Sodium benzoate appropriate amount Appropriate amount of citric acid Preservative (appropriate amount) Purified water remainder Total amount 100.00 (Preparation method) Mix all ingredients uniformly. (Results) When the viscosity of Example 4 was measured using the same method as in the other examples, it showed a viscosity of 2800 mPa·s. When hexaglyceryl myristate was removed from Example 4, the viscosity was 1100 mPa·s, confirming the thickening effect of the present invention. [Industrial applicability]

[0046] The present invention provides a cleaning agent that exhibits excellent viscosity when a thickening agent for cleaning agents is added to a low-viscosity cleaning agent, thereby offering a cleaning agent with good performance and handling properties.

Claims

1. A detergent characterized by containing the following components (A) and (B) as thickeners for detergents. Ingredient (A): (A-1) Polyglycerol fatty acid esters in which the number of carbon atoms in the fatty acid is 12 to 14 and the average degree of polymerization of polyglycerol is 3 to 6. Ingredient (B): (B-1) A propylene glycol fatty acid ester in which the fatty acid is one or more selected from caprylic acid, capric acid, myristic acid, oleic acid, and isostearic acid, and (B-2) Butylene glycol fatty acid ester in which the fatty acid is one or more selected from caprylic acid, capric acid, lauric acid, myristic acid, oleic acid, and isostearic acid. at least one selected from the group consisting of

2. A detergent characterized by containing the following components (A) and (B) as thickeners for detergents. Ingredient (A): (A-2) Monoglycerol fatty acid esters and / or diglycerol fatty acid esters having 8 to 14 carbon atoms in the fatty acid. Ingredient (B): (B-1) Propylene glycol fatty acid ester, in which the fatty acid is one or more selected from caprylic acid, capric acid, myristic acid, oleic acid, and isostearic acid. (B-2) Butylene glycol fatty acid esters in which the fatty acid is one or more selected from caprylic acid, capric acid, lauric acid, myristic acid, oleic acid, and isostearic acid, and (B-3) Propylene glycol fatty acid ester in which the fatty acid is lauric acid at least one selected from the group consisting of

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