JP7664041B2 - Cleaning composition - Google Patents

Description

The present invention relates to a cleaning composition, and more specifically, to a cleaning composition that has good foaming and foam quality (fineness) and is transparent in appearance even under low temperature conditions.

In recent years, an increasing number of consumers are aware that they have sensitive skin, and as a result, detergent compositions are being required to have not only a cleaning function, but also added-value functions such as skin irritation relief and moisturizing power. On the other hand, from the perspective of aesthetic beauty, a transparent appearance is also one of the qualities that consumers desire. However, when surfactants with low solubility are used, although they provide good foaming and excellent cleaning power, it is difficult to maintain a transparent appearance.

Developed detergent compositions include those that combine acylated isethionate, a low-irritant surfactant, with an N-acyl-L-glutamine salt or an N-acyl-β-alanine salt, to provide low irritation and an excellent feel after washing (e.g., Patent Document 1); those that combine acylated isethionate with a taurate surfactant, betaine, or the like, to provide low irritation and excellent makeup removal (e.g., Patent Document 2); those that are transparent and suitable for pumping (e.g., Patent Document 3); and those that combine acylated isethionate with an amphoteric surfactant, an alkanolamide, to provide improved storage stability (e.g., Patent Document 4).

However, although these detergent compositions have the advantage of being mild to the skin, they do not combine the essential elements of foaming and foam quality (fineness) that consumers require when using cleansers such as face washes and body soaps, with a transparent appearance even under low temperature conditions.

JP2002-293722 Special table 2019-514891 JP2009-57383 Special table 2010-513621

The present invention was made in consideration of the above problems, and its purpose is to provide a cleaning composition that has good foaming and foam quality (fineness) and is transparent in appearance even under low temperature conditions.

As a result of intensive research conducted by the inventors in order to achieve the object of the present invention, they discovered that by combining an acylated isethionate, an amphoteric surfactant, an alkyl glucoside, and a cellulose derivative, a cleaning composition can be obtained that has good foaming and foam quality (fineness) and is transparent in appearance even under low temperature conditions, and thus completed the present invention.

The first invention of the present application is a cleaning composition characterized by containing the following components (A) to (D):
(A) Acylated isethionate salt: 2.0% or more of the total weight (B) Amphoteric surfactant: 2.0% or more of the total weight (C) Alkyl polyglucoside: 1.0 to 5.0% of the total weight
(D) Cellulose derivatives: 0.5 to 3.0% of the total mass

It is preferable that the component (B) is a cleaning composition comprising the following components (B1) and (B2):
(B1) one or more selected from lauric acid amidopropyl betaine, myristic acid amidopropyl betaine, and coconut oil fatty acid amidopropyl betaine,
(B2) One or more selected from 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine and N-lauroyl-N'-carboxymethyl-N'-hydroxyethyl ethylenediamine sodium

A second invention is the cleaning composition according to claim 1 or 2, further comprising the following component (E):
(E) Polyhydric alcohol

Preferably, the cleaning composition contains component (E) glycosyltrehalose.

The present invention provides a cleaning composition that has good foaming and foam quality (fineness) and is transparent in appearance even under low temperature conditions.

The cleaning composition of the present invention is described in detail below.

In this specification, "good foaming" means that the detergent composition quickly generates foam (foaming power) when the detergent composition is taken in the hands and lathered. In addition, "good foam quality (fineness)" means that the foam diameter is small when the detergent composition is taken in the hands and lathered.

<Component (A) Acylated isethionate salt>
The component (A) used in the cleansing composition of the present invention is an acylated isethionate. By incorporating the component (A), it is possible to improve foaming while reducing irritation to the skin.

Specific examples of component (A) used in the cleaning composition of the present invention include sodium lauroyl isethionate, sodium lauroyl methyl isethionate, sodium myristoyl isethionate, sodium cocoyl isethionate, and sodium oleoyl isethionate.

In the cleaning composition of the present invention, the blending amount of component (A) is 2.0% by mass or more of the total mass. If it is 2.0% by mass or more, good foaming and foam quality (fineness) can be obtained.

<Component (B): Amphoteric Surfactant>
The component (B) of the present invention is an amphoteric surfactant. By adding the component (B), the foam quality (fineness) is improved and the transparency of the appearance can be maintained even under low temperature conditions.

The amphoteric surfactant of the component (B) of the present invention is not particularly limited, and examples thereof include lauric acid amidopropyl betaine, coconut oil fatty acid amidopropyl betaine, lauryl dimethyl amino acetate betaine, 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine, sodium lauryl aminodiacetate, sodium β-aminopropionate, and N-lauroyl-N'-carboxymethyl-N'-hydroxyethyl ethylenediamine sodium, and one or more of these may be appropriately selected and used.

From the viewpoint of foaming, it is preferable to combine as component (B1) one selected from lauric acid amidopropyl betaine, myristic acid amidopropyl betaine, and coconut oil fatty acid amidopropyl betaine, and as component (B2) one selected from 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine and N-lauroyl-N'-carboxymethyl-N'-hydroxyethyl ethylenediamine sodium.

In the cleaning composition of the present invention, the blending amount of component (B) is 2.0% by mass or more of the total mass. If it is 2.0% by mass or more, the appearance does not become cloudy under low temperature conditions, and further, due to the synergistic effect with component (C), the foaming and foam quality (fineness) are improved, which is preferable.

<Component (C): Alkyl polyglucoside>
The component (C) used in the cleaning composition of the present invention is an alkyl polyglucoside. Component (C) maintains its appearance transparency even under low temperature conditions, and when combined with component (B), it synergistically improves foaming and foam quality.

Specific examples include decyl glucoside, lauryl glucoside, myristyl glucoside, cocoyl glucoside, etc. In the cleaning composition of the present invention, these alkyl polyglucosides can be used alone or in combination of two or more.

In the cleaning composition of the present invention, the blending amount of component (C) is 1.0 to 5.0% by mass of the total mass. If it is 1.0% by mass or more, the synergistic effect with component (B) will improve foaming and foam quality (fineness), while if it is 5.0% by mass or less, the foam quality (fineness) can be maintained and the sticky feeling characteristic of alkyl polyglucosides is suppressed, which is preferable in terms of feel.

<Component (D) Cellulose Derivative>
The component (D) used in the cleaning composition of the present invention is a cellulose derivative. By adding the component (D), the agent can be thickened and the foam quality (fineness) can be improved.

Specific examples of component (D) include methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methylcellulose, carboxymethyl cellulose, etc. Among these, particularly preferred cellulose derivatives are hydroxyethyl cellulose and hydroxypropyl methylcellulose.

In the cleaning composition of the present invention, the above cellulose derivatives can be used alone or in combination of two or more. The blending amount of component (D) is 0.5 to 3.0% by mass based on the total amount of the cleaning composition. If it is 0.5% by mass or more, the thickening is sufficient, the agent is given a suitable viscosity, and it is easy to use and has sufficient foaming. If it is 3.0% by mass or less, the viscosity is suppressed, it is easy to handle, and it has good foaming.

<Component (E) Polyhydric alcohol>
The component (E) used in the cleaning composition of the present invention is a polyhydric alcohol. By incorporating the component (E), the foam quality becomes finer. Examples of the polyhydric alcohol used in the present invention include glycerin, 1,3-butylene glycol, dipropylene glycol, isoprene glycol, 1,2-pentanediol, 1,2-octanediol, polyethylene glycols having an average molecular weight of 1000 or less, diglycerin, sorbitol, maltitol, and glycosyl trehalose. Among these, preferred polyhydric alcohols are glycerin, dipropylene glycol, and glycosyl trehalose.

In the cleaning composition of the present invention, the polyhydric alcohols may be used alone or in combination of two or more. The amount of component (E) is preferably 10% by mass or more, as this further improves the foam quality (fineness).

Addition of glycosyltrehalose as a polyhydric alcohol can improve foam quality (fineness) as well as foaming.

<Other ingredients>
In addition to the above-mentioned components, the cleaning composition of the present invention may contain other components as appropriate within the scope of the object of the present invention, such as anionic surfactants, nonionic surfactants, powders (pigments, colorants, resins, etc.), physiologically active components, antioxidants, sequestering agents, preservatives, ultraviolet absorbers, fragrances, moisturizers, salts, solvents, neutralizing agents, enzymes, and the like.

The anionic surfactant is not particularly limited, and examples thereof include triethanolamine lauryl sulfate, ammonium lauryl sulfate, sodium lauryl ether sulfate, sodium polyoxyethylene lauryl ether sulfate, potassium polyoxyethylene coconut oil fatty acid amide ether sulfate, sodium lauryl phosphate, and sodium polyoxyethylene lauryl ether acetate. One or more of these may be selected and used as appropriate.

The nonionic surfactant is not particularly limited, but examples thereof include polyoxyethylene cetyl ether, sorbitan monostearate, polyoxyethylene sorbitan triisostearate, polyoxyethylene hydrogenated castor oil, polyoxyethylene monoisostearate, polyoxyethylene glyceryl dioleate, coconut oil fatty acid diethanolamide, coconut oil fatty acid monoethanolamide, coconut oil fatty acid N-methylethanolamide, polyoxyethylene polyoxypropylene glycol, polyethylene glycol monolaurate, etc., and one or more of these may be selected and used as appropriate.

Examples of the powder include pigments such as Red No. 201, Yellow No. 4, Blue No. 1, and Black No. 401, lake pigments such as Yellow No. 4 Al Lake and Yellow No. 203 Ba Lake, nylon powder, silk powder, silicone powder, cellulose powder, silicone elastomer spherical powder, polymers such as polyethylene powder, colored pigments such as yellow iron oxide, red iron oxide, chromium oxide, carbon black, ultramarine, and Prussian blue, white pigments such as zinc oxide and titanium oxide, extender pigments such as talc, mica, sericite, and kaolin, pearl pigments such as titanium mica, metal salts such as barium sulfate, calcium carbonate, magnesium carbonate, and magnesium silicate, inorganic powders such as silica and alumina, bentonite, smectite, and boron nitride. There are no particular limitations on the shape of these powders (spherical, rod-shaped, needle-shaped, plate-shaped, irregular, flaky, spindle-shaped, etc.).

The above-mentioned physiologically active ingredients include substances that impart some kind of physiological activity to the skin when applied to the skin. Examples include anti-inflammatory agents, anti-aging agents, UV protection agents, tightening agents, antioxidants, moisturizing agents, blood circulation promoters, antibacterial agents, disinfectants, drying agents, cooling agents, warming agents, vitamins, amino acids, wound healing promoters, irritation relief agents, analgesics, cell activators, enzyme components, etc. The above-mentioned physiologically active ingredients include natural plant extracts, seaweed extracts, herbal ingredients, compounds, etc., of which natural plant extracts, seaweed extracts, and herbal ingredients are particularly preferred from the standpoint of safety.

Examples of the above-mentioned natural plant extracts, seaweed extracts, and herbal medicines include angelica tree extract, amacha extract, althea extract, aloe extract, apricot extract, ginkgo extract, fennel extract, oolong tea extract, angelica tree extract, scutellaria extract, phellodendron bark extract, hypericum extract, Dutch mustard extract, orange extract, seawater dried product, seaweed extract, hydrolyzed wheat powder, hydrolyzed silk, chamomile extract, carrot extract, artemisia capillaris extract, licorice extract, kakyoku extract, kiwi extract, cucumber extract, gardenia extract, kumazasa extract, sophora flavescens extract, walnut extract, grapefruit extract, chlorella extract, mulberry extract, black tea extract, yeast extract, collagen, salvia extract, soapwort extract, hawthorn extract, rehmannia extract, lithospermum extract, perilla extract, linden extract, peony extract, white birch extract, and horsetail extract , ivy extract, hawthorn extract, elderberry extract, yarrow extract, peppermint extract, sage extract, cnidium rhizome extract, swertia britannica extract, soybean extract, tsinga extract, thyme extract, tea extract, clove extract, tangerine peel extract, angelica extract, peach kernel extract, dokudami extract, tomato extract, natto extract, carrot extract, garlic extract, wild rose extract, honey, witch hazel extract, sedge extract, bisabolol, loquat extract, poria extract, propolis, loofah extract, peppermint extract, linden extract, hop extract, madonna lily flower extract, horse chestnut extract, soapberry extract, melissa extract, peach extract, saxifrage extract, yuzu extract, mugwort extract, lavender extract, lemon extract, astragalus extract, rosemary extract, royal jelly extract, etc.

In addition, ingredients other than the above-mentioned natural plant extract ingredients, seaweed extract ingredients, and herbal ingredients include, for example, biopolymers such as deoxyribonucleic acid, collagen, elastin, chitin, chitosan, and hydrolyzed eggshell membrane, moisturizing ingredients such as amino acids, sodium lactate, urea, sodium pyrrolidone carboxylate, betaine, and whey, oily ingredients such as sphingolipids, ceramide, cholesterol, cholesterol derivatives, and phospholipids, anti-inflammatory agents such as ε-aminocaproic acid, glycyrrhizic acid, β-glycyrrhetinic acid, lysozyme chloride, guaiazulene, and hydrocortisone, vitamins (A, B2, B6, C, D, and E), calcium pantothenate, These include vitamins such as biotin, nicotinamide, and vitamin C ester; active ingredients such as allantoin, diisopropylamine dichloroacetate, and 4-aminomethylcyclohexanecarboxylic acid; antioxidants such as tocopherol, carotenoids, flavonoids, tannins, lignans, and saponins; cell activators such as α-hydroxy acids and β-hydroxy acids; blood circulation promoters such as γ-oryzanol and vitamin E derivatives; bactericides such as isopropylmethylphenol, triclosan, hinokitiol, and benzalkonium chloride; cooling agents such as l-menthol and peppermint oil; and wound healing agents such as retinol and retinol derivatives.

The detergent composition of the present invention can be suitably used as a skin detergent, such as for face washing, cleansing, body shampoo, hand soap, shaving agent, massage agent, etc. Each of the detergent compositions can be used in the form of a viscous liquid, cream, etc., and is particularly suitable for use as a face washing gel or liquid body shampoo.

Next, the present invention will be described in detail with reference to examples, but the present invention is not limited thereto. Prior to the examples, the test methods and evaluation methods used in each example will be explained.

(1) Evaluation of low-temperature stability A sample was filled into a transparent glass container and stored at 0° C. After 2 weeks and 2 months, the state of dissolution was visually evaluated and the transparency (L value) was measured using a measuring device.

<Visual inspection of dissolution state>
◯: Very good low-temperature stability, transparent appearance after 2 months △: Good low-temperature stability, turbidity and precipitates observed after 2 months ×: Poor low-temperature stability, turbidity and precipitates observed after 2 weeks

<Transparency (L value) measurement>
The transparency of each sample stored at 0°C for 2 months was evaluated by measuring the L value. The L value was measured using a color difference meter (ZE6000) manufactured by Nippon Denshoku Co., Ltd., and was expressed as the transparency when the transparency of distilled water as a control was set to 100. The evaluation criteria were as follows:
◎: 90 or more (transparent state)
○: 80 to 89 (almost transparent)
△: 70-79 (semi-transparent)
Less than 70: (cloudy)

(2) Evaluation of foaming and foam quality (fineness) A panel of 10 experts used the body shampoos of the Examples and Comparative Examples and performed a sensory evaluation of the foaming and foam quality (fineness) during use. The evaluation criteria were as follows. [Foaming during use]
◎: Very good The number of subjects who answered that the foam is good is 8 or more. ○: Good The number of subjects who answered that the foam is good is 6 or more but less than 8. △: Average The number of subjects who answered that the foam is good is 4 or more but less than 6. ×: Poor The number of subjects who answered that the foam is good is less than 4. [Foam quality when used (fineness)]
◎: Very good The number of subjects who answered that the foam quality was good was 8 or more. ○: Good The number of subjects who answered that the foam quality was good was 6 or more but less than 8. △: Average The number of subjects who answered that the foam quality was good was 4 or more but less than 6. ×: Poor The number of subjects who answered that the foam quality was good was less than 4.

Examples 1 to 10, Comparative Examples 1 to 14
Body shampoos with the compositions shown in Tables 1 and 2 were prepared, and their low-temperature stability and foaming and foam quality (fineness) when used were examined. Body shampoo samples were prepared by swelling cellulose derivative (D) in pure water, adding various activators (A) to (C), and polyhydric alcohol (E) to dissolve uniformly. The prepared body shampoos were dispensed into glass bottles and stored at 0°C for two months. The results are shown in Tables 1 and 2.

As is clear from Tables 1 and 2, the body shampoo compositions of Examples 1 to 13 using the components of the present invention all showed superior performance compared to the compositions of Comparative Examples 1 to 12.

Below, another formulation example of the facial cleansing composition of the present invention is given as Example 11. The facial cleansing compositions of these examples were also examined for foaming, foam quality (fineness), and appearance under low temperature conditions.

Example 11 Facial cleansing gel (1) Sodium lauroyl methyl isethionate 5.0
(2) Myristamidopropyl betaine 2.5
(3) Sodium cocoamphoacetate 2.5
(4) Lauryl glucoside 5.0
(5) Hydroxypropyl methylcellulose 2.5
(6) DPG 9.0
(7) Glycosyltrehalose 1.5
(8) Disodium edetate 0.3 (9) Phenoxyethanol 0.5 (10) Fragrance 0.1
(11) Purified water, balance

A cleaning composition having the above composition was prepared by a conventional method, and evaluated for foaming, foam quality (fineness) and appearance at low temperature. All properties were excellent, giving good results.

Claims (2)

A cleaning composition comprising the following components (A) to (E):
(A) Acylated isethionate salt: 2.0% or more of the total weight (B) Amphoteric surfactant: 2.0% or more of the total weight (C) Alkyl polyglucoside: 1.0 to 5.0% of the total weight
(D) at least one cellulose derivative selected from the group consisting of methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, and carboxymethyl cellulose, 0.5 to 3.0% by weight of the total weight
(E) Polyhydric alcohol containing glycosyl trehalose 2. The cleaning composition according to claim 1, wherein the component (B) comprises the following components (B1) and (B2):
(B1) one or more selected from lauric acid amidopropyl betaine, myristic acid amidopropyl betaine, and coconut oil fatty acid amidopropyl betaine,
(B2) One or more selected from 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine and N-lauroyl-N'-carboxymethyl-N'-hydroxyethyl ethylenediamine sodium