Detergent composition

Abstract

To provide a detergent composition which is used in the form of a foam discharged from a non-aerosol former container, has good detergency, good foam quality at a low temperature and good stability at a low temperature.SOLUTION: There is provided a detergent composition which is used in the form of a foam discharged from a non-aerosol former container, wherein the detergent composition comprises (A) a higher fatty acid salt including all of a lauric acid salt, a myristic acid salt and a palmitic acid salt, (B) a desalted lauric acid amidopropyl betaine and (C) a polyhydric alcohol, the content of the component (A) is 0.4 to 8 mass%, the content of the component (B) is 1.5 to 16 mass% and the content of the component (C) is 3 to 50 mass%.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a detergent composition. More specifically, it relates to a detergent composition that is discharged in a foamy state from a non-aerosol former container and has good detergency, good foam quality at low temperatures, and good stability at low temperatures.

Background Art

[0002] Conventionally, as a cleaning component of a detergent composition, higher fatty acid salts have been widely used in order to achieve both detergency and foam quality. In addition, a detergent composition containing a higher fatty acid salt is generally used by foaming it with hands, a foaming net, or the like. However, in recent years, due to the simpler foaming, a detergent composition filled in a non-aerosol former container has been more preferably used.

[0003] As a detergent composition filled in a non-aerosol former container, for example, in Patent Document 1, a cleaning agent containing a higher fatty acid salt in a non-aerosol former container excellent in foam quality and dischargeability has been proposed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the cleaning agent containing a higher fatty acid salt proposed in Patent Document 1, when the cleaning agent is filled in a non-aerosol former container and stored under low-temperature conditions, the foam quality deteriorates due to an increase in viscosity, and precipitation of the higher fatty acid salt in the cleaning agent easily occurs, and further technological improvement has been demanded.

[0006] Therefore, the object of the present invention is to provide a detergent composition that has good cleaning power, good foam quality and stability at low temperatures, and is used by being dispensed as foam from a non-aerosol foamer container. [Means for solving the problem]

[0007] As a result of diligent research, the inventors have found that a detergent composition for use by dispensing it in a foamy form from a non-aerosol foamer container, comprising (A) a higher fatty acid salt containing any of laurate, myristicate, and palmitate, (B) desalted lauric acid amidopropyl betaine, and (C) a polyhydric alcohol, wherein the content of component (A) is 0.4 to 8% by mass, the content of component (B) is 1.5 to 16% by mass, and the content of component (C) is 3 to 50% by mass, solves the above problems and has completed the present invention. [Effects of the Invention]

[0008] The present invention provides a detergent composition that has good cleaning power, good foam quality and stability at low temperatures, and is used by being dispensed as foam from a non-aerosol foamer container.

[0009] The present invention will be described in detail below.

[0010] In this invention, all units indicating content are in mass percent unless otherwise specified.

[0011] In this invention, "low temperature" refers to -5°C.

[0012] From the viewpoint of cleaning power and foam quality at low temperatures, the present invention contains (A) a higher fatty acid salt that includes laurate, myristicate, and palmitate.

[0013] The salts constituting the higher fatty acid salt of component (A) used in the present invention are not particularly limited, but examples include alkali metal salts such as sodium salts and potassium salts, and lower alkanolamine salts. From the viewpoint of stability at low temperatures, sodium salts and potassium salts are preferred for the salts constituting the higher fatty acid salt of component (A), and potassium salts are more preferred.

[0014] The content of component (A) used in the present invention is preferably 0.4 to 8%, more preferably 1 to 7%, and more preferably 2 to 6%. If the content of component (A) is less than 0.4%, the cleaning power and foam quality at low temperatures will be poor. If the content of component (A) exceeds 8%, the stability at low temperatures will be poor.

[0015] From the viewpoint of cleaning power, the present invention contains (B) desalted lauric acid amidopropyl betaine.

[0016] In the present invention, desalted lauric acid amidopropyl betaine is obtained by suppressing the salt content, such as sodium chloride, in the manufacturing process of lauric acid amidopropyl betaine to 1% or less through methods such as ion exchange resin method, reverse osmosis method, membrane filtration method, or electrodialysis method. By including desalted lauric acid amidopropyl betaine, the salt concentration in the detergent composition of the present invention can be reduced.

[0017] The desalted lauric acid amidopropyl betaine used in the present invention can suppress the increase in viscosity of the detergent composition at low temperatures compared to unsalted lauric acid amidopropyl betaine.

[0018] This invention uses desalted lauric acid amidopropyl betaine to suppress the increase in viscosity of the detergent composition at low temperatures, making it easier to dispense the detergent composition at low temperatures and maintaining good foam quality during dispensing.

[0019] Specific examples of the component (B) used in the present invention include Softazoline LPB-R (manufactured by Kawaken Fine Chemicals Co., Ltd.) and the like.

[0020] The content of the component (B) used in the present invention is 1.5 to 16%, preferably 2 to 14%, more preferably 4 to 12%. When the content of the component (B) is less than 1.5%, the detergency deteriorates. When the content of the component (B) exceeds 16%, the viscosity of the detergent composition increases and the foam quality at low temperatures deteriorates.

[0021] From the viewpoint of stability at low temperatures, the present invention contains (C) a polyhydric alcohol.

[0022] The component (C) used in the present invention is not particularly limited. For example, glycerin, 1,3-butylene glycol, propylene glycol, dipropylene glycol, sorbitol, etc. may be mentioned, and at least one or more selected from these can be contained. Among them, from the viewpoints of foam quality and stability at low temperatures, glycerin, 1,3-butylene glycol, and propylene glycol are preferable, and glycerin is more preferable.

[0023] The content of the component (C) used in the present invention is 3 to 50%, preferably 5 to 40%, more preferably 10 to 30%. When the content of the component (C) is less than 3%, the stability at low temperatures deteriorates. When the content of the component (C) exceeds 50%, the viscosity of the detergent composition increases and the foam quality at low temperatures deteriorates.

[0024] In the detergent composition of the present invention, within the range not impairing the effects of the present invention, in addition to the above components, as components usually used in cosmetics, surfactants other than the components (A) and (B), oily components, polymer compounds, pH adjusters, sequestering agents, ultraviolet absorbers, fragrances, antioxidants, preservatives, alcohols, humectants, cooling agents, thickeners, vitamins, plant extracts, protein hydrolysates, colorants, etc. can be contained, and one or more of these may be contained.

[0025] The viscosity of the detergent composition in the present invention at -5°C is preferably 1 to 200 mPa·s, more preferably 1 to 150 mPa·s, and even more preferably 1 to 80 mPa·s, from the viewpoint of foam quality at low temperatures. If the viscosity exceeds 200 mPa·s, the foam quality at low temperatures may deteriorate.

[0026] The viscosity of the detergent composition in the present invention at -5°C is measured using a B-type viscometer (model: Digital Viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.) with a No. 2 rotor at a rotational speed of 60 rpm for 1 minute, after filling 120 g of the detergent composition prepared by a conventional method into a 140 g capacity sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.), leaving it to stand at -5°C for 7 days for temperature adjustment.

[0027] The viscosity of the detergent composition in the present invention at 20°C is preferably 1 to 200 mPa·s, more preferably 1 to 150 mPa·s, and even more preferably 1 to 80 mPa·s, from the viewpoint of foam quality. If the viscosity exceeds 200 mPa·s, the foam quality may deteriorate.

[0028] The viscosity of the detergent composition in the present invention at 20°C is measured using a B-type viscometer (model: Digital Viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.) with a No. 2 rotor at a rotational speed of 60 rpm for 1 minute, after filling 120 g of the detergent composition prepared by a conventional method into a 140 g capacity sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.), leaving it to stand at 20°C for 7 days for temperature adjustment.

[0029] The pH of the detergent composition in the present invention at 20°C is not particularly limited, but is preferably 8 to 10.

[0030] The pH of the detergent composition in the present invention at 20°C is measured using a glass electrode type hydrogen ion concentration indicator (F-71, manufactured by Horiba, Ltd.) after filling 120 g of the detergent composition prepared by a conventional method into a 140 g capacity sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.), leaving it to stand at 20°C for 1 day for temperature adjustment.

[0031] The cleaning agent composition used in the present invention is filled into a non-aerosol foamer container and dispensed in a foamy form. That is, it can be filled into a non-aerosol foamer container to create a non-aerosol foamer type cleaning agent product. Alternatively, the cleaning agent composition of the present invention can be filled into a refillable container such as a pouch or plastic container, and then transferred from the refillable container to a non-aerosol foamer container for use.

[0032] Non-aerosol foaming containers for dispensing the detergent composition of the present invention in a foamy form include non-aerosol foaming containers of the type that mix the detergent composition with air to form a foam. More specifically, these include pump foaming containers that can dispense foam by pressing the nozzle and squeeze foaming containers that can dispense foam by squeezing the bottle. From the viewpoint of being able to dispense a fixed amount of foam, pump foaming containers are preferred.

[0033] The non-aerosol foamer container for dispensing the detergent composition of the present invention in a foamy form is not particularly limited, but from the viewpoint of foam quality, it is preferably one that has two or more porous membranes of 100 mesh to 300 mesh inside the dispensing hole, and more preferably one that has two porous membranes of 200 mesh and 255 mesh.

[0034] Specific examples of non-aerosol foaming containers used in the present invention include the F2 type 255 / 200 (manufactured by Yamato Seikan Co., Ltd.).

[0035] The cleansing composition of the present invention is preferably provided in the form of a facial cleanser, body soap, hand soap, shampoo, etc., as a cleansing agent for hair and skin contained in a pump foamer container. [Examples]

[0036] The present invention will be described in more detail below with reference to examples. However, these examples do not limit the present invention in any way.

[0037] In the evaluation tests described herein, the components and their contents in the detergent composition were varied during the tests. The units for indicating the content of each component are all in mass%, and these were prepared by conventional methods.

[0038] In the evaluation tests described in this invention, "cleaning power," "foam quality at low temperatures," and "stability at low temperatures" were evaluated.

[0039] <Cleaning power> Ten expert evaluation panelists applied 0.1g of lanolin as model sebum to the inner arm, then applied 1.0g of the cleansing agent composition, and rinsed with lukewarm water. The average evaluation score was calculated according to the following evaluation criteria, and the cleansing power was evaluated according to the following judgment criteria. -Evaluation Criteria- 5: I felt the cleaning power was very good. 4: I felt it had good cleaning power. 3: I felt the cleaning power was slightly better. 2: I felt the cleaning power was somewhat poor. 1: I felt the cleaning power was poor. -Judgment criteria- ◎: Average rating of 4.0 or higher ○: Average rating is 3.2-3.9 △: Average rating is 2.5-3.1 ×: Average rating is 2.4 or lower

[0040] <Foam quality at low temperatures> Each detergent composition was filled into a non-aerosol foamer container and stored in a room set at -5°C for 7 days. Ten expert evaluation panelists dispensed 1.0 g of the detergent composition from the non-aerosol foamer container in the above-mentioned room. The average evaluation score of the dispensed foam was calculated according to the evaluation criteria below, and the foam quality at low temperatures was evaluated according to the judgment criteria below. A pump-type non-aerosol foamer container was used, and the pump was an F2 type 255 / 200 (manufactured by Yamato Seikan Co., Ltd.).

[0041] -Evaluation Criteria- 5: I felt the foam quality was excellent. 4: I felt the foam quality was good. 3: I felt the foam quality was slightly better. 2: I felt the foam quality was somewhat poor. 1: I felt the foam quality was poor. -Judgment criteria- ◎: Average rating is between 4.0 and 5.0 ○: Average rating is between 3.0 and 4.0 △: Average rating is between 2.0 and 3.0 points. ×: Average rating is less than 2.0 points

[0042] <Stability at low temperatures> One expert evaluation panelist filled a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.) with 120g of each detergent composition, allowed it to stand at -5°C, and then visually inspected the appearance of each detergent composition. The low-temperature stability was then evaluated according to the following criteria. -Judgment criteria- ◎: Maintains a clear liquid state for more than 30 days. ○: Maintains a clear liquid state for 20 to less than 30 days. △: Maintains a clear liquid state for 10 to less than 20 days. ×: Cloudiness or precipitates were observed in less than 10 days.

[0043] [Table 1]

[0044] [Table 2]

[0045] [Table 3]

[0046] Examples 1 to 21, shown in Tables 1 to 3, yielded favorable results regarding "cleaning power," "foam quality at low temperatures," and "stability at low temperatures."

[0047] Examples of the formulation of the detergent composition are given below. The detergent composition shown in Example 22 yielded better results in terms of "cleaning power," "foam quality at low temperatures," and "stability at low temperatures."

[0048] <Example 22> (Detergent composition) Component Content (%) (A) Potassium laurate 2.00 (A) Potassium myristate 1.00 (A) Potassium palmitate 1.00 (B) Lauric acid amidopropyl betaine 8.10 (C) Glycerin 17.80 (C) 1,3-Butylene Glycol 2.10 Phenoxyethanol 0.30 Glycerin mono-2-ethylhexyl ether 0.20 Disodium edetate 0.10 Aloe vera leaf extract 0.01 Scutellaria baicalensis root extract 0.01 Chamomile flower extract 0.01 Dipotassium glycyrrhizinate 0.02 Fragrance 0.70 Water 66.65 Total 100.00 ·Viscosity (-5℃): 17.1mPa·s pH (20℃): 8.6 [Industrial applicability]

[0049] The present invention provides a detergent composition that has good cleaning power, good foam quality and stability at low temperatures, and is used by being dispensed as foam from a non-aerosol foamer container.

Claims

[Claim 1] A detergent composition used by being dispensed in a foamy form from a non-aerosol foamer container, (A) Higher fatty acid salts containing laurate, myristicate, and palmitate, (B) Desalted lauric acid amidopropyl betaine, (C) Glycerin A detergent composition comprising the following: the content of component (A) is 2 to 6% by mass, the content of component (B) is 4 to 12% by mass, and the content of component (C) is 10 to 30% by mass.

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