JP2021095404A - Transparent detergent composition - Google Patents

Abstract

To provide a stable transparent detergent composition that contains oil and fat in high concentrations and has excellent foamability and detergency.SOLUTION: The present disclosure provides a stable transparent detergent composition that contains following (a)-(c) as essential components, the mass ratio of (b) to (a) (b)/(a) ranging from 0.02 to 0.28, achieving excellent foamability and detergency: (a) alkyl ether carboxylate, (b) oil and fat, (c) water.SELECTED DRAWING: None

Description

The present invention relates to a transparent detergent composition containing a high concentration of fats and oils and having excellent foaming properties and detergency.

Currently, clean beauty is popular in the global personal care market, and the natural concept containing botanical ingredients is becoming popular. In general, "clean" means that products and services should consider human and environmental health. This means that it is necessary to consume goods in consideration of resources such as water and food and the ecosystem of animals and plants. That is, it is necessary to make the ingredients that make up cosmetics as environmentally friendly as possible, and to consider how to use them without waste in order to reduce the burden on the environment. For example, when washing hair, if consumers are satisfied with shampoo alone without the need for hair treatment, it can greatly contribute to the reduction of water resources.

In recent years, especially in the Japanese hair care market, many transparent shampoos have been put on the market, and the transparent appearance gives consumers the impression of "cleanness" and "cleanliness". The transparent shampoo is a Water-based preparation mainly composed of a hydrophilic surfactant and a polymer. In addition, these formulations may contain trace amounts of oil components, and various concepts (natural, botanical, clean, etc.) have been proposed depending on the components. However, a transparent shampoo that enhances the conditioning effect and changes the texture by these oil components has not yet been developed. This is because a large amount of oil component does not dissolve transparently in shampoo and becomes cloudy. In general, in order to enhance the conditioning effect and moisturizing effect of hair, oil components such as silicone oil and vegetable oil are often used, and these components are adsorbed on the hair to improve the conditioning effect of the hair. Currently, many rely on hair treatments, hair milk, and hair oils that are high in oil components.

Shampoos have been reported to enhance the conditioning effect during rinsing by producing coacervates with anionic micelles and cationized polymers. When shampoo is diluted with water during rinsing, it causes coacervation by the electrostatic interaction of anionic micelles and cationized polymers, resulting in coacervates. This coacervate improves the conditioning effect during shampoo rinsing and gives a smooth feel. Coacervates containing a cationized polymer have high adsorptivity to hair, and the adsorptive force and feel on the hair surface can be controlled by the molecular weight and the degree of cationization of the cationized polymer. Further, by using an anionic surfactant and an amphoteric surfactant in combination and combining polymers having different degrees of cationization, coacervates having various feels can be formed.

However, although a general shampoo can impart a conditioning effect at the time of rinsing, it cannot impart a high conditioning effect to the hair after drying. In order to achieve a high conditioning effect after drying, it is necessary to solubilize a large amount of oil component in anionic micelles and incorporate a large amount of oil component into the coacervate. This means that it is necessary to achieve a transparent state in which the oil component is dissolved in the shampoo.

JP-A-2017-57187 Japanese Unexamined Patent Publication No. 2016-193886

An object of the present invention is to provide a stable transparent detergent composition containing a high concentration of fats and oils and having excellent foaming properties and detergency.

As a result of diligent studies on the above problems, the present inventors have included the following (a) to (c) as essential components, and set the mass ratio (b) / (a) of (b) to (a) to 0.02 to (a). By setting the value to 0.28, a stable transparent detergent composition having excellent foaming property and detergency was obtained.
(A) Alkyl ether carboxylate (b) Fats and oils (c) Water

According to the present invention, it is possible to obtain a detergent composition capable of transparently dissolving naturally-derived essential oil, vegetable oil, ester oil, etc. in the detergent composition and having excellent foaming property, detergency, stability, and thickening property. It can moisturize and repair skin and hair, and can be washed comfortably with a smooth feel.

The component (a) alkyl ether carboxylate in the present invention is not particularly limited, but it is preferable that the counterion is an organic base. More preferably, the organic base of the alkyl ether carboxylate is monoisopropylamine (MIPA), triisopropanolamine (TIPA) and the like. The number of carbon atoms in the alkyl chain length is not limited, but is preferably 8 to 16, and the structure of the alkyl chain length is not limited to the straight chain, and branches can also be used. The number of moles of polyoxyethylene addition is also not particularly limited, but is preferably 2 to 12 polyoxyethylene alkyl ethers. Examples of such alkyl ether carboxylate include (C10-12) -palace-2 acetate MIPA, (C10-12) -palace-3 acetate MIPA, (C10-12) -palace-4 acetate MIPA, (C10-). 12) -Palace-6 MIPA acetate, (C10-12) -Palace-10 MIPA acetate, (C10-12) -Palace-12 MIPA acetate, (C12-14) -Palace-2 MIPA acetate, (C12-14) -Palace-3 MIPA acetate, (C12-14) -Palace-4 MIPA acetate, (C12-14) -Palace-6 MIPA acetate, (C12-14) -Palace-10 MIPA acetate, (C12-14) -Palace -12 MIPA acetate, (C10-12) s-palace-2 MIPA acetate, (C10-12) s-palace-3 MIPA acetate, (C10-12) s-palace-4 MIPA acetate, (C10-12) s -Palace-6 MIPA acetate, (C10-12) s-Palace-10 MIPA acetate, (C10-12) s-Palace-12 MIPA acetate, (C12-14) s-Palace-2 MIPA acetate, (C12-14) ) S-Palace-3 acetate MIPA, (C12-14) s-Palace-4 acetate MIPA, (C12-14) s-Palace-6 acetate MIPA, (C12-14) s-Palace-10 acetate MIPA, (C12) -14) s-Palace-12 acetate MIPA, (C10-12) -Palace-2 acetate TIPA, (C10-12) -Palace-3 acetate TIPA, (C10-12) -Palace-4 acetate TIPA, (C10-) 12) -Palace-6 TIPA acetate, (C10-12) -Palace-10 TIPA acetate, (C10-12) -Palace-12 TIPA acetate, (C12-14) -Palace-2 TIPA acetate, (C12-14) -Palace-3 acetate TIPA, (C12-14) -Palace-4 acetate TIPA, (C12-14) -Palace-6 acetate TIPA, (C12-14) -Palace-10 acetate TIPA, (C12-14) -Palace -12 acetate TIPA, (C10-12) s-palace-2 acetate TIPA, (C10-12) s-palace-3 acetate TIPA, (C10-12) s-palace-4 acetate TIPA, (C10-12) s -Palace-6 TIPA acetate, (C10-12) s-Palace-10 TIPA acetate, (C10-12) s-Palace-12 TIPA acetate, (C12-14) s-Palace-2 TIPA acetate, (C12-14) ) S-Palace-3 acetate TIPA, (C12-14) s-Palace-4 acetate T IPA, (C12-14) s-palace-6 acetate TIPA, (C12-14) s-palace-10 acetate TIPA, (C12-14) s-palace-12 acetate TIPA and the like can be mentioned. Commercially available products include (C12-14) s-palace-3 acetate MIPA (product name: Typolsoft ECS-390M, manufactured by Taikou Oil & Fat Chemical Industry Co., Ltd.). These can be used alone or in combination of two or more, regardless of the number of carbon atoms or the number of moles added with polyoxyethylene.

The oil and fat component (b) in the present invention is not particularly limited, but is preferably a liquid oil that is fluid at room temperature. For example, naturally derived essential oils such as rose oil and lavender oil, vegetable oils and fats such as olive oil and jojoba oil, fats and oils such as animal fats and oils, methylheptyl laurate (product name: NIKKOL GS-HML, manufactured by Nikko Chemicals Co., Ltd.), etc. Ester oils, hydrocarbon oils such as squalane (product name: NIKKOL sugar squalane, manufactured by Nikko Chemicals) and hydrogenated farnesen (product name: NEOSSANCE HEMISQUALANE HF, manufactured by Nikko Chemicals), silicone oils such as amodimethicone and dimethiconol, and fragrances. And so on. Solid or semi-solid fats and oils such as shea butter and mango seed fat can be mixed and dissolved with other liquid oils or heated and dissolved before use. One or a combination of two or more of these can be used.

The foam quality of the component (b) fat and oil of the present invention differs depending on the type of fat and oil to be blended. For example, hydrogenated farnesene has a soft and smooth feel, and squalane has a hard and dense feel. Compared with the case where the fat and oil is not blended, when 3 to 5% of the fat and oil is blended, the foam quality is further improved and the feel is good, so that various feels can be realized with an appropriate blending amount.

In the detergent composition of the present invention, the mass ratio (b) / (a) of the component (a) component (b) fat and oil to the alkyl ether carboxylate is 0.02 to 0.28, preferably 0.04. It is ~ 0.2, more preferably 0.12-0.2. When the mass ratio (b) / (a) exceeds 0.28, the ratio of the component (b) increases, so that the foaming property is inferior. By setting the mass ratio (b) / (a) of the component (a) to the component (b) to 0.02 to 0.28, the foaming property can be improved. Since the liquid oil has excellent compatibility with oils such as sebum, the detergency does not depend on the mass ratio, and the larger the ratio of the component (b), the more sufficiently moisturized and the drying can be prevented. On the other hand, the lower limit of the mass ratio (b) / (a) is 0.02, but if the amount of the component (a) is large, it may affect drying and finger passage.

The component (c) water in the present invention is not particularly limited, and examples thereof include purified water, distilled water, and ion-exchanged water.

The component (d) betaine-based amphoteric surfactant in the present invention is not an essential component constituting the present invention, but has an effect of further enhancing the solubility of fats and oils, an effect of improving foaming property, and an anionic surfactant. It may be used to relieve irritation and improve usability. Ingredient (d) Betaine-based amphoteric surfactants include, for example, cocamidopropyl betaine (product name: NIKKOL AM-3130N, manufactured by Nikko Chemicals Co., Ltd.) and lauryl betaine (product name: NIKKOL AM-301, manufactured by Nikko Chemicals Co., Ltd.). Can be mentioned.

The component (e) polyoxyethylene alkyl ether in the present invention is not an essential component constituting the present invention, but has an effect of increasing the solubility of the fat and oil component by blending. Examples of the component (e) polyoxyethylene alkyl ether include laureth-2 (product name: NIKKOL BL-2) and laureth-4 (product name: NIKKOL BL-4.2, manufactured by Nikko Chemicals Co., Ltd.). In particular, by blending Laureth-4, it is possible to transparently dissolve twice the amount of the fat and oil component as compared with the component (a) alone.

The detergent composition of the present invention moisturizes and repairs skin and hair by containing a large amount of liquid oil, and can be washed comfortably with a smooth feel. The face, body, hands, scalp, hair, etc. can be appropriately washed, and at the same time, their dryness can be appropriately prevented.

Further, a highly versatile component contained in a detergent composition such as shampoo can be added to the detergent composition of the present invention as long as the effects of the present invention are not impaired. For example, anionic surfactants such as cocoyl methyl taurine Na (product name: NIKKOL CMT-30, manufactured by Nikko Chemicals) and lauroylmethylalanine Na (product name: NIKKOL alaninate LN-30, manufactured by Nikko Chemicals), cocamide. Amphoteric surfactants such as propyl betaine (product name: NIKKOL AM-3130N, manufactured by Nikko Chemicals) and lauryl betaine (product name: NIKKOL AM-301, manufactured by Nikko Chemicals), (capril / capryl) glucoside (product name: Nonionic surfactants such as GreenAPG 0810 (manufactured by Nikko Chemicals Co., Ltd.) and PPG-24 Glyceres-24 (product name: NIKKOL SG-G2424, manufactured by Nikko Chemicals Co., Ltd.), polyols such as glycerin and DPG, polyquaternium-10 and polyquaternium- Cationic polymers such as 7, pH buffers such as citric acid and arginine, preservatives such as Na benzoate and phenoxyethanol, hydrolyzed proteins, peptides, amino acids, vitamins, ultraviolet absorbers and the like can be blended.

The dosage form of the detergent composition of the present invention is not particularly limited, but a transparent liquid or a transparent gel is preferable. It can be applied to hair cleansers such as shampoos, as well as skin cleansers such as body soaps, hand soaps, facial cleansers, and cleansing agents.

The transparency of the transparent cleaning agent composition of the present invention is characterized by being visually transparent at room temperature, and more specifically, an ultraviolet visible spectrophotometer (product name: Jasco V-650, JASCO Corporation). A fixed wavelength measurement (620 nm) was performed at room temperature, and a transmittance of 99.5% or more was defined as "transparent".

Hereinafter, the present invention will be described in more detail with reference to examples of the present invention, but the present invention is not limited thereto. In the following examples, the description of the blending amount means mass% unless otherwise specified.

1. 1. Preparation of samples The inventions and comparative products shown in Table 1 were prepared and evaluated.
After stirring and mixing the A phase and the B phase at room temperature, the C phase was added and mixed until uniform to obtain the product of the present invention and the comparative product.
As the component (a), (C12-14) s-palace-3 acetate MIPA (product name: Typolsoft ECS-390M, manufactured by Taikou Yushi Kagaku Kogyo Co., Ltd.) was used. Further, as a comparison of the component (a), Na laureth-5 carboxylate (product name: NIKKOL AKYPO RLM45NV, manufactured by Nikko Chemicals Co., Ltd.), Trideces-4 sodium carboxylate (product name: NIKKOL ECT-3NEX, manufactured by Nikko Chemicals Co., Ltd.) Was used.
As component (b), amodimethicone (product name: KF-8004, manufactured by Shinetsu Chemical Industry Co., Ltd.), hydrogenated farnesen (product name: NEOSSANCE HEMISQUALANE HF, manufactured by Nikko Chemicals Co., Ltd.), methyl heptyl isostearate (product name: NIKKOL GS) -MHIS (manufactured by Nikko Chemicals Co., Ltd.) and Squalane (product name: NIKKOL Sugar Squalane, manufactured by Nikko Chemicals Co., Ltd.) were used, respectively.

2. Transparency evaluation Above 1. Transparency was evaluated using the sample prepared in. As for the solubility, the appearance of the solution on the day after the sample preparation was visually observed, and the transparent one was marked with ◯ and the opaque one was marked with x. Furthermore, a fixed wavelength measurement (620 nm) was performed at room temperature using an ultraviolet-visible spectrophotometer (product name: Jasco V-650, manufactured by JASCO Corporation), and a transmittance of 99.5% or more was defined as "transparent". .. The results are shown in Table 1.

3. 3. Foamability evaluation Above 1. The foaming property was evaluated using the sample prepared in. For foaming property, a 0.5% aqueous solution of each preparation was prepared in 300 mL, stirred with an electric mixer (product name: Pure Black, manufactured by TESCOM) for 20 seconds at room temperature, and the amount of foam immediately after was compared. The scale of the amount of bubbles of 90 mm or more was marked with ⊚, 80 mm or more was marked with 〇, and less than 80 mm was marked with x. The results are shown in Table 1.

4. Detergency evaluation Above 1. The detergency was evaluated using the sample prepared in. The detergency was evaluated by preparing a 5% aqueous solution of each pharmaceutical product and using the artificial sebum shown in Table 2.
Cut a tape with irregularities on the surface (product name: Transpore Surgical Tape, manufactured by 3M) into a 1.5 cm square and attach it to the slide glass, and apply 0.036 g of artificial sebum evenly on it. Allowed to dry for hours. Then, 0.05 g of a 5% aqueous solution of each preparation was added dropwise, and the mixture was blended 20 times with a finger and then tapped 10 times with cotton to visually observe the degree of adsorption of artificial sebum to cotton. Those with high detergency due to adsorption of artificial sebum were rated as 〇, and those with low adsorption and low detergency were rated as x. The results are shown in Table 1.

5. Usability evaluation Above 1. The feeling of use was evaluated using the sample prepared in.
As a result of evaluation by a professional sensory evaluator (good finger passage on hair), those with very good finger passage were rated as ⊚, those with good finger passage were rated as 〇, and those with poor finger passage were rated as Δ. The results are shown in Table 1.

6. Viscosity measurement Viscosity at 25 ° C is measured using a B-type viscometer (product name: VISCOMETER TVB-10, manufactured by Toki Sangyo Co., Ltd.), and pH is a glass electrode type hydrogen ion concentration indicator (product name: PH / Direct measurement was performed using ION METER F-72 (manufactured by Horiba Seisakusho Co., Ltd.).

7. Results From Table 1, excellent results were shown in all of transparency, foaming property, and detergency in the range of mass ratio (b) / (a) of 0.02 to 0.28.

An application example of the present invention is shown below. The blending amount is mass%. Formulation Examples 1 to 3 were evaluated by the method described in Example 1 and excellent results were obtained.

Formulation Example 1: Oil-in-shampoo (A) Polyquaternium-10 0.5 (% by mass)
Cocamidopropyl Betaine 3.0
Sodium benzoate 0.6
Citric acid 0.1
Sodium citrate 0.01
Water Residual (B) (C12-14) s-Palace-3 Acetate MIPA 20.0
Hydrogenated polyisobutene 3.0
Propylene glycol laurate 1.0
Lavender oil 0.3
Preparation method: Phase A is heated and uniformly dissolved. After uniform dissolution, stop heating. Phase B is uniformly mixed at room temperature and charged into phase A. After cooling to room temperature and confirming transparent dissolution, the preparation is completed.
Viscosity: 2140 mPa · s
pH: 5.25

Prescription example 2: Oil shower (oil in body soap)
(A) (C12-14) s-palace-3 acetate MIPA 75.0 (mass%)
Almond oil 20.0
Fragrance 1.0
(B) Water residue preparation method: Phase A is uniformly dissolved. Phase A is put into phase B, and after confirming transparent dissolution, the preparation is completed.
Viscosity: 340 mPa · s
pH: 5.81

Prescription Example 3: Foam Hand Soap (A) Glycerin 5.0 (% by mass)
(C12-14) s-Palace-3 Acetate MIPA 5.0
Hydrogenated Farnesene 1.0
Lavender oil 0.3
Phenoxyethanol 0.5
(B) Water residue preparation method: Phase A is uniformly mixed. The A phase is put into the B phase. After warming and confirming transparent dissolution, the preparation is completed.
Viscosity: 10 mPa · s
pH: 5.71

According to the present invention, it is possible to obtain a detergent composition capable of transparently dissolving naturally-derived essential oil, vegetable oil, ester oil, etc. in the detergent composition and having excellent foaming property, detergency, stability, and thickening property. It can be used in compositions that can moisturize and repair skin and hair, have a smooth feel, and can be washed comfortably.

Claims (5)

A transparent detergent composition containing the following (a) to (c) as essential components and having a mass ratio (b) / (a) of (b) to (a) of 0.02 to 0.28.
(A) Alkyl ether carboxylic acid (b) Oil (c) Water The transparent detergent composition according to claim 1, wherein the counterion of the component (a) alkyl ether carboxylate is an organic base. The transparent detergent composition according to claim 1 or 2, wherein the counterion of the component (a) alkyl ether carboxylate is monoisopropylamine or isopropanolamine. The transparent detergent composition according to any one of claims 1 to 3, further comprising the component (d) betaine-based amphoteric surfactant. The transparent detergent composition according to any one of claims 1 to 4, further comprising the component (e) polyoxyethylene alkyl ether.