KR102331771B1 - Semi-solid detergent - Google Patents

Abstract

Although the compounding quantity of a higher fatty acid and its salt is small, this invention provides the semi-solid-state detergent excellent in storage stability. Component (A): contains a higher fatty acid and/or a salt thereof, component (B): a higher alcohol that is solid at 20°C and has 16 to 20 carbon atoms, and component (C): a carboxyvinyl polymer, wherein the component (A) A semi-solid detergent having a content ratio of 5.0 to 25.0 mass%. The component (C) is preferably an alkyl-modified carboxyvinyl polymer.

Description

Semi-solid detergent

The present invention relates to a semi-solid detergent. More particularly, the present invention relates to a semi-solid detergent useful for face wash, body soap, hand soap, and the like.

A detergent using a fatty acid salt (soap) is widely used because of its excellent detergency for sebum dirt and a refreshing feeling after washing. Moreover, from a viewpoint of the good feeling of use and foaming, semi-solid detergents, such as a gel-form detergent, a cream-form detergent, and a paste-form detergent, are preferable.

Conventionally, creamy detergents in which higher fatty acids are gelled with polyhydric alcohols and nonionic surfactants are generally used. However, such cream detergents contain an excessive amount of higher fatty acids (for example, 30% by mass) in order to form a semi-solid state. above) it is necessary to mix|blend (refer patent document 1).

Japanese Patent Laid-Open No. 2002-167325

In recent years, it is said that a part of a higher fatty acid and its salt (called "higher fatty acid (salt)") causes rough skin, and it is calculated|required to reduce the compounding quantity of a fatty acid. However, when the amount of the fatty acid is reduced in the creamy detergent, the viscosity at room temperature decreases and it becomes difficult to obtain a semi-solid shape, and since the change in viscosity at high temperature becomes large, there is a problem that storage stability is reduced.

Accordingly, it is an object of the present invention to provide a semi-solid detergent having excellent storage stability in spite of a small amount of a higher fatty acid and a salt thereof.

As a result of intensive studies to achieve the above object, the present inventors have found that component (A): a higher fatty acid and/or a salt thereof, component (B): a higher alcohol that is solid at 20°C and has 16 to 20 carbon atoms, and a component (C): According to the semi-solid detergent containing a carboxyvinyl polymer and the content ratio of the component (A) within a specific range, a semi-solid detergent excellent in storage stability is obtained despite a small amount of the higher fatty acid and its salt found something The present invention has been completed based on such knowledge.

That is, the present invention provides a semi-solid detergent comprising the following component (A), the following component (B) and the following component (C), wherein the content of the component (A) is 5.0 to 25.0 mass%:

Component (A): higher fatty acids and/or salts thereof

Component (B): a higher alcohol which is solid at 20°C and has 16 to 20 carbon atoms

Component (C): Carboxyvinylpolymer.

The component (C) is preferably an alkyl-modified carboxyvinyl polymer.

It is preferable that the content rate of the said component (B) is 1.0-10.0 mass %, and, as for the said semi-solid detergent, the content rate of the said component (C) is 0.1-1.0 mass %.

The semi-solid detergent preferably further contains the following component (D):

Component (D): Polysaccharide thickener.

The semi-solid detergent preferably further contains the following component (E):

Component (E): Surfactant.

The component (C) is preferably a (acrylate/alkyl acrylate (C10-30)) crosspolymer.

The semi-solid detergent of the present invention is excellent in storage stability in spite of the small amount of the higher fatty acid and its salt blended. In addition, according to the semi-solid detergent of the present invention, despite a small amount of higher fatty acids and salts thereof, it is excellent in foaming, spreading and foaming of the detergent while maintaining conventional cleaning properties. it becomes possible to

The semi-solid detergent of the present invention includes a higher fatty acid and/or a salt thereof; higher alcohols that are solid at 20° C. and have 16 to 20 carbon atoms; and at least a carboxyvinyl polymer. In addition, in this specification, "component (A)" is a higher fatty acid and/or a salt thereof, a higher alcohol which is solid at 20°C and has 16 to 20 carbon atoms is "component (B)", and a carboxyvinyl polymer is "component ( C)" is sometimes called.

That is, the semi-solid detergent of this invention contains a component (A), a component (B), and a component (C) at least. The semi-solid detergent of this invention may contain components other than the said component (A)-(C). In addition, each component contained in the semi-solid detergent of this invention, for example, each component, such as a component (A), a component (B), a component (C), and another component, may use only 1 type, respectively, 2 More than one species may be used.

In addition, in this specification, the content rate of each component (for example, a component (A), a component (B), a component (C), and another component) contained in the semi-solid-state detergent of this invention is semi-solid, respectively It can select suitably within the described range so that the content rate of the sum total in a washing|cleaning agent may become 100 mass % or less.

In addition, in this specification, a "semi-solid state" means properties, such as a gel form, cream form, and paste form, with low fluidity|liquidity. For example, "semi-solid phase" refers to a polypropylene tube container (100 mL capacity, 5 mm inner diameter of the discharge port) filled with 50 g of cleaning agent up to the discharge port, and the discharge port of this tube container is directed downward in an atmosphere of 20 ° C. It is a state in which it is difficult to fall off when held for a second.

[Component (A): higher fatty acids and/or salts thereof]

The higher fatty acid and/or its salt (higher fatty acid (salt)) as component (A) is either or both of a higher fatty acid and a higher fatty acid salt, and the semi-solid detergent of the present invention has the ability to clean, foam, foam and Contributes to storage stability. A component (A) may use only 1 type and may use 2 or more types.

As said higher fatty acid, For example, C10-C22 higher fatty acids, such as lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, behenic acid; vegetable oils such as olive oil, palm oil, palm oil, and cottonseed oil; and animal fats and oils such as fish oil and beef tallow.

As a salt in the said higher fatty acid salt, For example, alkali metal salts, such as a sodium salt and potassium salt; Alkanolamine salts, such as a monoethanolamine salt, a diethanolamine salt, and a triethanolamine salt, etc. are mentioned. The higher fatty acid salt in the semi-solid detergent of the present invention may be a higher fatty acid salt prepared in advance as a salt, or blended as a higher fatty acid and a base, respectively, in the process of producing a semi-solid detergent, a higher fatty acid and It may be formed from a base.

As for component (A), a C10-20 higher fatty acid (salt) is especially preferable. When carbon number of a higher fatty acid (salt) is 10 or more, the viscosity of a semi-solid-state detergent becomes moderate and it is excellent in washing|cleaning property. When carbon number of a higher fatty acid (salt) is 20 or less, since it is excellent in water affinity, it is more excellent in foaming, and it is excellent in storage stability. The carbon number of the said higher fatty acid (salt) becomes more preferably 12-18, More preferably, 12-14 (especially lauric acid and myristic acid) from a viewpoint of being excellent in foaming and foaming quality.

It is preferable that a component (A) contains myristic acid especially from a viewpoint of maintaining a semi-solid phase and making it more excellent in storage stability, and making foaming and foaming quality more excellent. Moreover, it is preferable to contain lauric acid from a viewpoint of making it more excellent in water affinity and especially making initial foaming more excellent.

The content rate of the component (A) in the semi-solid detergent of this invention is 5.0-25.0 mass % as mentioned above with respect to 100 mass % of semi-solid-state detergents of this invention, Preferably it is 6.0-22.0 mass %, More preferably Preferably, it is 10.0-20.0 mass %. When the said content rate is 5.0 mass % or more, it exhibits washing|cleaning property and functions as a washing|cleaning agent, it is excellent in foaming and foaming quality, it becomes a moderate viscosity, and it is excellent in storage stability. When the said content rate is 25.0 mass % or less, it makes it difficult to raise|generate skin roughness, and it is excellent in the spreading|spreading at the time of application|coating. The content rate of the said component (A) is the sum total of the content rate of all the components (A) in the semi-solid detergent of this invention.

When component (A) contains myristic acid, it is preferable that the content rate of the myristic acid in the semi-solid detergent of this invention is 10.0 mass % or more with respect to 100 mass % of total amounts of component (A), and more preferable Preferably it is 20.0 mass % or more, More preferably, it is 30.0 mass % or more, Especially preferably, it is 50.0 mass % or more. Moreover, when component (A) contains lauric acid, it is preferable that the content rate of lauric acid in the semi-solid detergent of this invention is 10.0 mass % or more with respect to 100 mass % of total amounts of component (A), More preferably, it is 20.0 mass % or more, More preferably, it is 30.0 mass % or more, Especially preferably, it is 50.0 mass % or more. Moreover, it is preferable that the content rate of the said lauric acid is 80.0 mass % or less.

[Component (B): a higher alcohol which is solid at 20°C and has 16 to 20 carbon atoms]

The component (B), which is a solid at 20°C and a higher alcohol having 16 to 20 carbon atoms, forms a semi-solid phase in a state where the compounding amount of the component (A) is small by combined use with the component (C), and has storage stability has the effect of improving Specifically, a detergent can be made into a semi-solid state by using the higher alcohol which is solid at 20 degreeC. In addition, among the higher alcohols that are solid at 20 ° C, by using those having 16 or more carbon atoms, the detergent becomes a suitable viscosity and becomes difficult to sag, and by using those having 20 or less carbon atoms, the lipophilicity does not become too high, and it is estimated that it is due to a suitable thing, Since the detergent has a gel structure, it is excellent in storage stability in a semi-solid phase. A component (B) may use only 1 type and may use 2 or more types.

As a component (B), cetanol (cetyl alcohol), stearyl alcohol, arachidyl alcohol, cetostearyl alcohol, etc. are mentioned, for example. Moreover, as alcohol containing a component (B), lanolin alcohol etc. are mentioned, for example. Among them, stearyl alcohol is preferable from the viewpoint of more excellent spread at the time of application.

Although the content rate of the component (B) in the semi-solid detergent of this invention is not specifically limited, 1.0-10.0 mass % is preferable with respect to 100 mass % of semi-solid-state detergents of this invention, More preferably, 3.0-6.0 mass %am. If the content is 1.0 mass% or more, the effect of blending the component (B) is sufficiently obtained, and since the semi-solid detergent has a more suitable viscosity, it is difficult to sag and is excellent in usability and storage stability. When the said content rate is 10.0 mass % or less, it suppresses that a semi-solid-state detergent hardens, and it is excellent in spreading|spreading. The content rate of the said component (B) is the sum total of the content rate of all the components (B) in the semi-solid detergent of this invention.

[Component (C): Carboxyvinyl Polymer]

The carboxyvinyl polymer which is a component (C) forms a semi-solid phase in the state with little compounding quantity of a component (A) by combined use with a component (B), and has the effect|action which improves storage stability. A component (C) may use only 1 type and may use 2 or more types.

As component (C), carboxyvinyl polymer which is mainly a polymer of acrylic acid, and alkyl-modified carboxyvinyl polymer which is mainly a copolymer of acrylic acid and alkyl methacrylate (for example, total carbon number 10-30 (C10-C30)) are mentioned. can Especially, it is preferable that it is an alkyl-modified carboxyvinyl polymer. When the component (C) is an alkyl-modified carboxyvinyl polymer, it is presumed that the lipophilicity of the component (C) is improved by the alkyl-modified moiety, and the affinity of the component (A) and water is further improved, and the semi-solid state The viscosity of a detergent becomes more moderate, and it is excellent in storage stability.

The carboxyvinyl polymer is not particularly limited, but is expressed as "CARBOMER" by the INCI name (International Cosmetic Ingredient Dictionary and Handbook, 15th Edition, Volume 1, 2014, p.582-583) compounds can be mentioned. The alkyl-modified carboxyvinyl polymer is not particularly limited, but “ACRYLATES/C10-30 ALKYL ACRYLATE” by INCI name (International Cosmetic Ingredient Dictionary and Handbook, 15th Edition, Volume 1, 2014, p.63-64) CROSSPOLYMER ((acrylate/alkyl acrylate (C10-30)) cross polymer)" is mentioned. It is preferable that the component (C) is, in particular, a (acrylate/alkyl acrylate (C10-30)) crosspolymer.

Commercially available products of the carboxyvinyl polymer include, for example, trade name "Carbopol 934 Polymer", trade name "Carbopol 940 Polymer", trade name "Carbopol 941 Polymer", trade name "Carbopol 980 Polymer", trade name "Carbopol 981 Polymer", trade name " Carbopol 1342 Polymer", trade name "Carbopol 2984 Polymer", trade name "Carbopol Ultrez 10 Polymer", trade name "Carbopol ETD 2050 Polymer" (above, manufactured by Lubrizol Advanced Materials), trade name "AQUPEC HV-501", trade name "AQUPEC HV-" 504", brand name "AQUPEC HV-505" (above, manufactured by Sumitomo Seika Co., Ltd.), brand name "Hibiswako 104", brand name "Hibiswako 105" (above, manufactured by Wako Junyaku Kogyo Co., Ltd.), etc. can be heard Commercial products of the alkyl-modified carboxyvinyl polymer include, for example, trade name "PEMULEN TR-1", trade name "PEMULEN TR-2", trade name "Carbopol ETD 2020 Polymer", trade name "Carbopol ULTREZ 20 Polymer", trade name "Carbopol" ULTREZ 21 Polymer" and "Carbopol SC-200 Polymer" (above, manufactured by Lubrizol Advanced Materials).

Although component (C) is not specifically limited, It may be neutralized with a basic substance, or may be used after neutralizing with a basic substance. Examples of the basic substance include alkanolamines such as triethanolamine and monoethanolamine, inorganic bases such as ammonia, sodium hydroxide and potassium hydroxide, and basic amino acids such as arginine. Moreover, what is necessary is just to mix|blend the addition amount of the said basic substance suitably according to the kind of component (C) and the said basic substance, and the usage-amount of the component (C).

Although the content rate of the component (C) in the semi-solid detergent of this invention is not specifically limited, 0.1-1.0 mass % is preferable with respect to 100 mass % of semi-solid-state detergents of this invention, More preferably, 0.2-0.7 mass %am. When the content is 0.1 mass% or more, the effect of blending the component (C) is sufficiently obtained, and since the semi-solid detergent becomes a more suitable viscosity, it is difficult to sag and is excellent in usability and storage stability. When the said content rate is 1.0 mass % or less, it suppresses that a semi-solid detergent hardens, and it is excellent in spreading|spreading. The content rate of the said component (C) is the sum total of the content rate of all the components (C) in the semi-solid detergent of this invention.

In the semi-solid detergent of the present invention, the content ratio of the component (B) is 1.0 to 10.0 mass% (preferably 3.0 to 6.0 mass%) with respect to 100 mass% of the semi-solid detergent of the present invention, the component (C) It is especially preferable that the content rate is 0.1-1.0 mass % (preferably 0.2-0.5 mass %). In this case, a semi-solid-state detergent becomes a more moderate viscosity, and is further excellent in storage stability.

[Ingredient (D): Polysaccharide Thickener]

It is preferable that the semi-solid detergent of this invention contains a polysaccharide thickener (it may call "component (D)") further. When the semi-solid detergent of the present invention contains the component (D), while maintaining the semi-solid phase and storage stability, the spreadability is good, the water affinity is better, and the foam quality (especially the texture of the foam, elasticity) is more is improved This is presumed to be due to the component (D) strengthening the film of the foam. A component (D) may use only 1 type and may use 2 or more types.

As the component (D), for example, alginic acid, carrageenan, agar, purcelleran, guar gum, quince seed, konjac mannan, tamarind seed gum, tara gum, dextrin, starch, locust bean gum, gum arabic, garty gum, plant-derived polysaccharide thickeners such as karaya gum, gum tragacanth, arabinogalactan, pectin, and quince; animal-derived polysaccharide thickeners such as chitosan and hyaluronic acid; Microorganism-derived polysaccharide thickeners, such as curdlan, xanthan gum, gellan gum, cyclodextrin, dextran, fullulan, and hyaluronic acid; nonionic cellulose derivatives such as microcrystalline cellulose, methylcellulose, ethylcellulose, hydroxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, and hydroxypropylmethylcellulose; anionic celluloses such as carboxymethyl cellulose; cationized celluloses such as chloride O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethylcellulose; and cationized guar gums such as chloride O-[2-hydroxy-3-(trimethylammonio)propyl]guar gum.

As a commercial item of the ingredient (D), for example, a trade name "Ecogum T" (manufactured by DSP Kokyo Foods & Chemicals Co., Ltd., xanthan gum), a trade name "Inagel Guar Gum CS" (Ina Shokuhin Kogyo Co., Ltd.) manufacture, guar gum), brand name "JAGUAR HP-8" (manufactured by Sansho Corporation, hydroxypropyl guar gum), etc. are mentioned.

When the semi-solid detergent of this invention contains a component (D), The content rate of the component (D) in the semi-solid detergent of this invention is although it does not specifically limit, With respect to 100 mass % of semi-solid-state detergents of this invention, 0.05 -1.0 mass % is preferable, More preferably, it is 0.1-0.5 mass %. The effect of mix|blending a component (D) as the said content rate is 0.05 mass % or more is fully acquired, and the foam quality of a semi-solid detergent becomes more favorable. When the said content rate is 1.0 mass % or less, it suppresses that a semi-solid detergent hardens, and it is excellent in spreading|spreading. The content rate of the said component (D) is the sum total of the content rate of all the components (D) in the semi-solid detergent of this invention.

[Component (E): Surfactant]

It is preferable that the semi-solid detergent of this invention contains surfactant (it may call "component (E)") further. As a component (E), a nonionic surfactant, an anionic surfactant, and an amphoteric surfactant are preferable. Especially, an amphoteric surfactant is more preferable from a viewpoint of being more excellent in water affinity and improving foam quality (especially, the texture of foam, elasticity) more while maintaining a semi-solid phase and storage stability. A component (E) may use only 1 type and may use 2 or more types.

Examples of the amphoteric surfactant include alkylamidobetaine type amphoteric surfactants such as amidopropylbetaine laurate and amidopropylbetaine palm oil; glycine-type amphoteric surfactants such as alkylglycine salt, carboxymethylglycine salt, and N-acylaminoethyl-N-2-hydroxyethylglycine salt; aminopropionic acid type amphoteric surfactants such as alkylaminopropionate and alkyliminodipropionate; betaine aminoacetic acid type amphoteric surfactants such as betaine alkyldimethylaminoacetic acid, betaine alkylamidopropyldimethylaminoacetate, and betaine alkyldihydroxyethylaminoacetate; N-alkyl-N,N-dimethylammonium-N-propylsulfonate, N-alkyl-N,N-dimethylammonium-N-(2-hydroxypropyl)sulfonate and N-fatty acid amidopropyl-N,N -sulfobetaine type amphoteric surfactants, such as dimethylammonium-N-(2-hydroxypropyl) sulfonate, and alkylhydroxy sulfobetaine; imidazolinium type amphoteric surfactants, such as alkylcarboxymethylhydroxyethyl imidazolinium betaine, etc. are mentioned.

When the semi-solid detergent of the present invention contains the component (E), the content rate of the component (E) in the semi-solid detergent of the present invention is not particularly limited, 0.5 with respect to 100 mass% of the semi-solid detergent of the present invention -5.0 mass % is preferred. When the content ratio is 0.5 mass% or more, the effect of blending the component (E) is sufficiently obtained, the foaming quality of the semi-solid detergent becomes better, and the dough state (maintaining the semi-solid shape, spreading good, and the state with uniformity in the unfolded state) becomes more favorable. When the said content rate is 5.0 mass % or less, the viscosity fall of a semi-solid detergent does not occur easily. The content rate of the said component (E) is the sum total of the content rate of all the components (E) in the semi-solid detergent of this invention.

[water]

The semi-solid detergent of the present invention comprises water. Although the said water is not specifically limited, Purified water is preferable. Although the content rate of the water in the semi-solid detergent of this invention is not specifically limited, 30.0-90.0 mass % is preferable with respect to 100 mass % of the semi-solid detergents of this invention, More preferably, it is 40.0-85.0 mass %.

[Other Ingredients]

The semi-solid detergent of this invention may contain components (other components) other than the said component (A)-(E) and water within the range which does not impair the objective of this invention. It does not specifically limit as said other component, For example, the component etc. normally used for cosmetics and a quasi-drug are mentioned. Specifically, For example, Lower alcohols, such as ethanol; oily components such as oils and fats, polyhydric alcohols, higher alcohols other than the component (B), ester oils, vegetable oils, and hydrocarbon oils; thickeners other than component (D), such as a cationic polymer; moisturizer; disinfectant; pearlizing agent; scrubs; anti-inflammatory agents such as glycyrrhizic acid and salts thereof; refreshing agents, such as menthol; pH adjusters, such as phosphoric acid and its salts, citric acid and its salts, lactic acid and its salts, sodium hydroxide, and triethanolamine; Spices; UV absorbers; antioxidants; sequestering agents (chelating agents); film-forming high molecular compounds; powder; pigment; pigment; vitamins; amino acids; astringent; whitening agent; animal and plant extracts; Mountain; alkali and the like. In addition, in the said other component, the thing contained in the said component (A)-(E) shall be excluded.

Examples of the scrubbing agent include polyethylene (polyethylene powder), polypropylene (polypropylene powder), crystalline cellulose, hydroxyapatite, polylactic acid, hydrogenated castor oil, paraffin wax, talc, silicon powder, silica, mica, titanium oxide, metal soap, and the like. When the semi-solid detergent of this invention contains a scrubbing agent, the content rate of the scrubbing agent in the semi-solid detergent of this invention is 0.1-20.0 mass % with respect to 100 mass % of the semi-solid-state detergents of this invention.

The semi-solid detergent of this invention is not specifically limited, It can manufacture by a well-known thru|or a usual method. For example, it can be prepared by mixing each of the above components and stirring with a homomixer.

The semi-solid detergent of the present invention can be used as a face wash, body soap, hand soap, and the like.

Moreover, the form of the semi-solid-state detergent of this invention with which the container was filled with the semi-solid detergent of this invention may be sufficient. As said container, a pump container, a tube container, etc. are mentioned, for example. Especially, the form filled with the tube container is preferable at the point which is excellent in the discharge property of the semi-solid-state cleaning agent of this invention.

In the conventional semi-solid detergent containing a fatty acid (salt), when the compounding quantity of a fatty acid (salt) is reduced, a viscosity will fall and it will become liquid instead of semi-solid. To solve this problem, it is considered to increase the viscosity by blending the carboxyvinyl polymer as a thickener. However, in this case, storage stability is lowered, and the elasticity of the detergent is increased, spreading is deteriorated, the dough is easily broken, the water affinity when foaming on the palm is poor, and there is a problem that foaming is deteriorated. . On the other hand, the semi-solid detergent of the present invention contains a specific higher alcohol [component (B)] and a carboxyvinyl polymer [component (C)] even if the blending amount of the higher fatty acid (salt) [component (A)] is relatively small. By using together, in spite of the small compounding quantity of a fatty acid (salt), it becomes semi-solid and is excellent in storage stability. This is because the component (B) having a strong lipophilic property and the component (C) having hydrophilicity improve the affinity of the component (A) and water, and the component (A) to (C) and water, a conventional fatty acid (salt) It is presumed that this is due to the formation of a gel with high stability that is different from the gel formed with a nonionic surfactant and a polyhydric alcohol. The semi-solid detergent of the present invention is also excellent in cleaning power, spreading, foaming and foaming quality.

Example

Hereinafter, the present invention will be described in more detail based on Examples, but the present invention is not limited only to these Examples. In addition, the compounding quantity described in the table|surface is the compounding quantity of each component (that is, compounding quantity of the active ingredient in each raw material, so-called pure component), except for component (E), and unless otherwise stated, "mass %" is represented by

Examples 1 to 13, Comparative Examples 1 to 4

Using each component (components (A)-(E), water, and other components) described in the table, each cleaning agent of the Example and the comparative example was prepared by the conventional method.

The detail of each component described in a table|surface is as follows.

<Component (A)>

Lauric acid: trade name "EDENOR C12-99" (manufactured by Emery Oleochemicals)

Myristic acid: trade name "EDENOR C14-99" (manufactured by Emery Oleochemicals)

Palmitic acid: trade name "EDENOR C16-98 MY" (manufactured by Emery Oleochemicals)

<Component (B)>

Stearyl Alcohol: trade name "Calchol 8688" (manufactured by Kao Corporation)

Cetanol: trade name "Calchol 6870" (manufactured by Kao Corporation)

Cetostearyl alcohol: trade name "Calchol 6850" (manufactured by Kao Corporation)

<Component (C)>

Component (C-1): trade name "Carbopol SC-200 Polymer" (manufactured by Lubrizol Advanced Materials), (acrylate/alkyl acrylate (C10-30)) crosspolymer

Component (C-2): trade name "PEMULEN TR-1" (manufactured by Lubrizol Advanced Materials), (acrylate/alkyl acrylate (C10-30)) crosspolymer

Component (C-3): trade name "Carbopol Ultrez 21 Polymer" (manufactured by Lubrizol Advanced Materials), (acrylate/alkyl acrylate (C10-30)) crosspolymer

Component (C-4): trade name "Carbopol 980 Polymer" (manufactured by Lubrizol Advanced Materials), carbomer

<Component (D)>

Xanthan Gum: Trade name "Ecogum T" (manufactured by DSP Kokyo Foods & Chemicals Co., Ltd.)

Cationized guar gum: trade name "Ravol gum CG-M" (manufactured by DSP Kokyo Foods & Chemicals Co., Ltd.)

<Component (E)>

Amidopropyl betaine laurate solution (30%): trade name "Ricabion B-300" (manufactured by New Nippon Rica Co., Ltd.), amphoteric surfactant (active ingredient: 30% by mass)

＜Other ingredients＞

Behenyl Alcohol: Trade name "Behenyl Alcohol 2265" (manufactured by Kokyu Alcohol Kogyo Co., Ltd.)

Cationic polymer: trade name "Merquat 550PR" (manufactured by Lubrizol Advanced Materials)

(evaluation)

Each cleaning agent obtained by the Example and the comparative example was evaluated as follows. The evaluation result was described in the table|surface.

(1) state

50 g of each washing|cleaning agent obtained by the Example and the comparative example was inject|poured into the inside of the tube container (100 mL capacity, 5 mm of inner diameter of a discharge port) made from a polypropylene, and it filled up to the discharge port. Then, the discharge port of this tube container was turned downward, and it hold|maintained for 10 second in a 20 degreeC atmosphere, and the presence or absence of the detergent drooping from the discharge port of a tube container was visually observed. And the following evaluation criteria evaluated the state of a washing|cleaning agent.

[Status evaluation criteria]

◎ (Excellent): There is no drooping of the detergent from the discharge port of the tube container, and the semi-solid state is maintained.

○ (good): There is no sagging of the cleaning agent from the discharge port of the tube container, and slight fluidization is observed on the surface of the cleaning agent.

Δ (usable): A slight drooping of the cleaning agent was observed from the discharge port of the tube container, and clear fluidization was observed on the surface of the cleaning agent.

x (defect): The washing|cleaning agent drooping from the discharge port of a tube container is recognized, and it is liquid.

(2) spread

According to the following evaluation criteria, 4 expert evaluation members evaluated the good spread when each detergent (about 1.0 g) obtained by the Example and the comparative example was spread on the palm.

[Criteria for evaluation of spread at the time of application]

◎ (Excellent): The cleaning agent can be applied uniformly.

(Good): Compared with (double-circle), uniform applicability is slightly inferior.

(triangle|delta) (usable): Compared with (circle), it is inferior to uniform applicability|paintability, but it can be used.

x (defect): Elasticity is high, the spread of an agent is bad, and a cleaning agent cannot be apply|coated uniformly.

(3) foamy

Each cleaning agent (about 1.0 g) obtained in Examples and Comparative Examples was spread on the palm and mixed with an appropriate amount of hot water at about 40 ° C. The foam quality after foaming in the palm of the hand 20 times according to the following evaluation criteria was evaluated by a professional appraiser 4 person performed the evaluation.

[Evaluation standard]

◎ (Excellent): The texture of the foam, elasticity.

○ (Good): Compared with ◎, the texture and elasticity of the foam are slightly inferior.

△ (usable): Compared with ○, the texture and elasticity of the foam are inferior, but it can be used.

x (poor): foaming is bad, and it droops from a palm and falls.

(4) storage stability

50 g of each cleaning agent obtained in Examples and Comparative Examples was poured into a polypropylene tube container (100 mL capacity, 5 mm inner diameter of the discharge port), filled to the discharge port, and stored in a thermostat at 40°C for 4 weeks. Thereafter, the discharge port of the tube container was directed downward for 10 seconds, and the presence or absence of drooping of each cleaning agent from the discharge port of the tube container was visually observed in an atmosphere of 20°C. Moreover, each washing|cleaning agent was discharged on the transparent glass plate in 20 degreeC atmosphere, and the state of each discharged washing|cleaning agent was observed visually. Moreover, the good spread at the time of spreading each washing|cleaning agent (about 1.0 g) on the palm was evaluated. And the presence or absence, state, and spread of the washing|cleaning agent after a preservation|save were evaluated according to the following evaluation criteria by 4 expert evaluation members. In addition, about the cleaning agent whose state was judged to be liquid, evaluation of spreading was not performed.

[Evaluation criteria for storage stability]

◎ (Excellent): There is no drooping of the cleaning agent from the discharge port of the tube container, the semi-solid properties are maintained, and there is a uniform coating property equal to or higher than the evaluation standard △ of the above “(2) Spread”.

○ (Good): There is no drooping of the cleaning agent from the discharge port of the tube container, slight fluidization is observed on the surface of the cleaning agent, and there is a uniform coating property equal to or higher than the evaluation standard △ of the above "(2) spreading".

△ (usable): slight drooping of the cleaning agent from the discharge port of the tube container was observed, clear fluidization was observed on the surface of the cleaning agent, and there was uniform applicability equal to or higher than the evaluation standard △ of the above "(2) spread" .

x1 (defect): The washing|cleaning agent drooping from the discharge port of a tube container was recognized, and it is liquid.

x2 (defective): There is no drooping of the detergent from the discharge port of the tube container, and although the semi-solid property is maintained, the spread of the agent is bad, and a detergent cannot be apply|coated uniformly.

[Table 1]

The semi-solid detergent (Example) of this invention was evaluated as being excellent in storage stability, although the compounding quantity of a higher fatty acid (salt) was 20 mass % or less and less than before. In addition, it was evaluated to be excellent in spread and foam quality. On the other hand, when there were few compounding quantities of a component (A) (comparative example 1), it was evaluated that it is inferior to foam quality and storage stability. When the component (B) was not included (Comparative Example 2), it was evaluated as being inferior in storage stability. When the component (C) was not included (Comparative Example 3), it was judged that it did not become semi-solid and was inferior in storage stability. When behenyl alcohol was used without using component (B) (Comparative Example 4), it was evaluated that it is inferior to storage stability.

In addition, below, the prescription example of the semi-solid-state detergent of this invention is shown.

(Formulation Example 1: Cool type)

5.0 mass% of lauric acid

Myristic acid 10.0 mass%

5.0 mass% of stearyl alcohol

(Acrylate/Alkyl Acrylate (C10-30)) Crosspolymer 0.3% by mass

xanthan gum 0.15 mass %

Amidopropyl betaine laurate solution (30%) 3.0% by mass

Appropriate amount of potassium hydroxide (adjusted to pH 9.8)

tetrasodium edetic acid tetrahydrate 0.05 mass %

0.9 mass % l-menthol

Fragrance 0.2% by mass

Purified water remaining

(Formulation Example 2: Moisturizing type)

5.0 mass% of lauric acid

Myristic acid 9.0 mass%

2.0% by mass of palmitic acid

Cetyl alcohol 2.0% by mass

stearyl alcohol 3.0% by mass

(Acrylate/Alkyl Acrylate (C10-30)) Crosspolymer 0.3% by mass

0.2% by mass of cationized guar gum

Amidopropyl betaine laurate solution (30%) 2.0% by mass

Dimethyldiallylammonium chloride-acrylamide copolymer solution (8.5%) 3.0 mass%

Glycerin 30.0 mass%

Appropriate amount of potassium hydroxide (adjusted to pH 9.8)

tetrasodium edetic acid tetrahydrate 0.05 mass %

Fragrance 0.2% by mass

0.1% by mass of hyaluronic acid

Collagen 0.1% by mass

Purified water remaining

(Formulation example 3: scrub type)

5.0 mass% of lauric acid

Myristic acid 10.0 mass%

2.0% by mass of palmitic acid

stearic acid 1.0 mass%

5.0 mass% of stearyl alcohol

(Acrylate/Alkyl Acrylate (C10-30)) Crosspolymer 0.25 mass%

Amidopropyl betaine laurate solution (30%) 2.0% by mass

Glycerin 10.0 mass%

Appropriate amount of potassium hydroxide (adjusted to pH 9.8)

tetrasodium edetic acid tetrahydrate 0.05 mass %

l-menthol 0.3 mass %

Fragrance 0.2% by mass

crystalline cellulose 5.0 mass%

Silica 1.0% by mass

Bentonite 0.5 mass%

Medicinal coal 0.1 mass%

Purified water remaining

Claims (6)

It contains the following component (A), the following component (B), and the following component (C), and the content rate of the said component (A) is 5.0-25.0 mass %,
The component (A) contains myristic acid, and the content ratio of the myristic acid is 10.0 mass% or more with respect to 100 mass% of the total amount of the component (A), semi-solid detergent:
Component (A): higher fatty acids and/or salts thereof
Component (B): a higher alcohol which is solid at 20°C and has 16 to 20 carbon atoms
Component (C): Carboxyvinylpolymer. The method of claim 1,
A semi-solid detergent wherein the component (C) is an alkyl-modified carboxyvinyl polymer. 3. The method according to claim 1 or 2,
The semi-solid detergent whose content rate of the said component (B) is 1.0-10.0 mass %, and the content rate of the said component (C) is 0.1-1.0 mass %. 3. The method according to claim 1 or 2,
A semi-solid detergent containing the following component (D):
Component (D): Polysaccharide thickener. 3. The method according to claim 1 or 2,
A semi-solid detergent containing the following component (E):
Component (E): Surfactant. 3. The method according to claim 1 or 2,
A semi-solid detergent wherein the component (C) is a (acrylate/alkyl acrylate (C10-30)) crosspolymer.