Cleaner

Abstract

To provide a cleaner that is capable of delivering excellent thickening effect through the addition of a thickener for cleaners to a cleaning composition.SOLUTION: A cleaner comprises, as essential components, the following (A) and (B): (A) a polyglyceryl fatty acid ester, where the fatty acid includes 12 to 14 carbon atoms and the polyglycerin has an average degree of polymerization of 3 to 6, and (B) propylene glycol monolaurate.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a detergent containing a detergent thickener capable of imparting an excellent thickening effect. [Background technology]

[0002] In general, cleaning agents such as shampoos, body shampoos, facial cleansers, hand soaps, and liquid kitchen detergents are generally formulated with thickeners to improve performance and ease of handling. Patent Document 1 reports that when anionic surfactants such as alkyl sulfates and alkyl sulfonates are used as the main cleaning ingredient, the addition of a specific propylene glycol monolaurate ester exhibits a thickening effect.

[0003] On the other hand, in recent years, acylamino acid surfactants are often used to reduce irritation, and it is known that cleaning agents containing these surfactants have difficulty in forming a thickening agent. Patent Document 2 reports that a suitable thickening agent can be imparted by blending an amphiphilic substance, an inorganic salt, and water in a specific ratio with an N-long chain acyl acidic amino acid and / or its salt. However, the above technology alone cannot obtain a sufficient viscosity, and in actual formulations, other thickening agents such as cocamide DEA are also used in combination, leaving problems to be solved. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Special Publication No. 6-31409 [Patent Document 2] Patent No. 3922299 Summary of the Invention [Problem to be solved by the invention]

[0005] The object of the present invention is to provide a cleaning agent that can impart an excellent thickening effect, even in a cleaning agent that contains an acylamino acid surfactant as a main cleaning component, in view of the problems of the conventional technology described above. [Means for solving the problem]

[0006] As a result of extensive research, the present inventors have found that an excellent thickening effect can be imparted by combining (A) a polyglycerol fatty acid ester in which the carbon number of the fatty acid is 12 to 14 and the average polymerization degree of the polyglycerol is 3 to 6, with (B) a propylene glycol monolaurate, and have thus completed the present invention. Effect of the Invention

[0007] By using the detergent thickener of the present invention, sufficient viscosity can be imparted even when an acylamino acid-based surfactant, which tends to have a low viscosity, is used as the main detergent component, thereby providing a detergent with good performance and ease of handling. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, the embodiments of the present invention will be described in more detail. The polyglycerol fatty acid ester (A) used in the present invention is characterized in that it has an alkyl group having 12 to 14 carbon atoms and the average degree of polymerization of polyglycerol is 3 to 6.

[0009] (A) according to the present invention is not particularly limited, and examples thereof 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.).

[0010] (B) according to the present invention is not particularly limited, and examples of commercially available products include "Type BP" (manufactured by Riken Vitamin Co., Ltd.) and "Unisafe PGML" (manufactured by NOF Corp.).

[0011] The blending amount of the (A) polyglycerol fatty acid ester used in the present invention is 0.1 to 10 mass % of the total amount of the detergent, more preferably 0.1 to 5 mass %, and further preferably 0.5 to 3 mass %.

[0012] The blending amount of (B) propylene glycol monolaurate used in the present invention is 0.1 to 5 mass %, more preferably 0.5 to 3 mass %, of the total amount of the detergent.

[0013] The cleaning agent in the present invention is not particularly limited, and examples thereof include products such as hair shampoo, body shampoo, facial cleanser, cleansing agent, hand soap, and liquid kitchen detergent, regardless of whether they are aqueous or emulsion-based.

[0014] The present invention will be described in more detail below with reference to examples of the present invention, but the present invention is not limited thereto. In the following examples, the amounts of ingredients are expressed in mass % unless otherwise specified. EXAMPLES

[0015] The product of the present invention was used to evaluate its thickening performance in a detergent. 1. Preparation method The cleaning agent components shown in Tables 1 and 2 were measured out and mixed uniformly to prepare the reference product, invention products 1 to 9, and comparison products 1 to 5. 2. Evaluation of thickening performance The viscosity at 25°C was measured using a Brookfield viscometer, using a No. 3 rotor at a rotation speed of 30 rpm, after 30 seconds. The evaluation results of thickening performance shown in Tables 1 and 2 are the change in viscosity compared to the viscosity of the standard product, and are indicated as follows according to the degree of thickening. <Description of thickening performance> -: No decrease or change in viscosity was observed compared to the reference product. +: Increased viscosity (up to 200 mPa·s) was observed compared to the reference product. ++: Viscosity has increased significantly compared to the standard (200-1000mPa s). +++: Viscosity significantly increased compared to the standard (1000 mPa s or more).

[0016] [Table 1]

[0017] [Table 2]

[0018] Examples containing a detergent thickener are shown below. All of Examples 1 to 4 showed superior thickening effects compared to the case where the component corresponding to (A) polyglycerol fatty acid ester in the product of the present invention was not contained.

[0019] Example 1: Shampoo Sodium methyl cocoyl 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 Triglyceride Laurate 2.00 Citric acid (appropriate amount) Sodium citrate (appropriate amount) Preservatives (appropriate amount) Purified water remainder Total amount 100.00 (Preparation method) Mix all ingredients uniformly. (Results) When the viscosity of Example 1 was measured in the same manner as in the Examples, it showed a viscosity of 4000 mPa s or more. When triglyceryl laurate was omitted from Example 1, the viscosity was 2900 mPa s, confirming the thickening effect of the present invention.

[0020] 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 laurate 1.50 Tetraglyceryl laurate 2.00 Citric acid (appropriate amount) Sodium citrate (appropriate amount) Preservatives (appropriate amount) Purified water remainder Total amount 100.00 (Preparation method) Mix all ingredients uniformly. (Results) The viscosity of Example 2 was measured in the same manner as in Example 2 and was found to be 2700 mPa s. When tetraglyceryl laurate was omitted from Example 2, the viscosity was 735 mPa s, confirming the thickening effect of the present invention.

[0021] 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 laurate 2.00 Triglyceride myristate 0.80 EDTA-2Na appropriate amount Preservatives (appropriate amount) Purified water remainder Total amount 100.00 (Preparation method) Mix all ingredients uniformly. (Results) When the viscosity of Example 3 was measured in the same manner as in the Examples, it showed a viscosity of 4000 mPa s or more. When triglyceryl myristate was omitted from Example 3, the viscosity was 3100 mPa s, confirming the thickening effect of the present invention.

[0022] 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 Propylene glycol laurate 1.00 Hexaglyceryl myristate 1.00 EDTA-2Na appropriate amount Sodium benzoate appropriate amount Citric acid (appropriate amount) Preservatives (appropriate amount) Purified water remainder Total amount 100.00 (Preparation method) Mix all ingredients uniformly. (Results) The viscosity of Example 4 was measured in the same manner as in the Examples and was found to be 3000 mPa s. When hexaglyceryl myristate was omitted from Example 4, the viscosity was 1230 mPa s, confirming the thickening effect of the present invention. [Industrial Applicability]

[0023] The present invention provides a detergent thickener that exhibits excellent thickening properties by adding it to a low-viscosity detergent, thereby providing a detergent with good performance and ease of handling.

Claims

[Claim 1] A cleaning agent characterized by comprising the following components (A) and (B) as a thickener for the cleaning agent: Component (A) A polyglycerol fatty acid ester in which the fatty acid has 12 to 14 carbon atoms and the average polymerization degree of polyglycerol is 3 to 6. Component (B) Propylene glycol monolaurate

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