Cleaning agents containing oils derived from natural ingredients

Abstract

The object of the present invention is to provide a novel cleaning composition containing an oil agent comprising fatty acid esters derived from natural oils and fats. [Solution] A means to solve the above problem is a cleaning composition containing an oil agent comprising a lower alkyl ester of fatty acids derived from natural oils and a fatty acid glyceride derived from the same natural oil.

Description

Technical Field

[0001] The present invention relates to a cleaning agent containing an oil agent derived from natural raw materials.

Background Art

[0002] A cleaning composition aimed at removing dirt on the face, hands, etc. may contain an oil agent for the purpose of imparting a moisturizing feeling after cleaning.

[0003] For example, Patent Document 1 describes a facial cleanser containing an oily raw material, an anionic surfactant, and one monoglyceride fatty acid ester selected from glyceryl caprylate, glyceryl capric acid, glyceryl undecylenate, glyceryl laurate, and glyceryl myristate.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In view of the above prior art, the problem to be solved by the present invention is to provide a novel cleaning composition containing an oil agent containing fatty acid esters derived from natural fats and oils.

Means for Solving the Problems

[0006] The present invention for solving the above problems is as follows [1] to

[10] . [1] A cleaning composition containing an oil agent containing a lower alkyl ester of a fatty acid derived from natural fats and oils and a glyceride of the fatty acid derived from natural fats and oils.

[0007] [2] The cleaning composition according to [1], wherein the cleaning agent is contained, and the mass of the cleaning agent is 6 or more when the mass of the oil is set to 1.

[0008] [3] A cleaning composition according to [1] that contains a fragrance and a detergent and satisfies the following conditions (A) and (B): (A) The mass of the cleaning agent is 6 or more when the mass of the oil and fragrance is set to 1. (B) The mass of the oily agent is 0.2 or more when the mass of the fragrance is set to 1.

[0009] [4] The cleaning composition according to any one of [1] to [3], wherein the oil comprises the fatty acid lower alkyl ester and the fatty acid glyceride, and the fatty acid glyceride comprises fatty acid triglyceride, fatty acid diglyceride and fatty acid monoglyceride.

[0010] [5] The cleaning composition according to any one of [1] to [4], wherein the oil is 40% by mass or more and 80% by mass or less of the fatty acid lower alkyl ester, and the fatty acid glyceride is 3% by mass or more and 15% by mass or less as fatty acid triglyceride, 3% by mass or more and 25% by mass or less as fatty acid diglyceride, and 8% by mass or more and 20% by mass or less as fatty acid monoglyceride.

[0011] [6] The cleaning composition according to any one of [1] to [5], wherein the fatty acid lower alkyl ester and / or the fatty acid glyceride are enzymatically transesterified.

[0012] [7] A cleaning composition according to any one of [1] to [6], wherein the ratio of the mass content of linoleic acid and linolenic acid when the total mass of fatty acids contained in the fatty acid lower alkyl ester and the fatty acid glyceride is taken as 1 is 0.25 or less.

[0013] [8] The cleaning composition according to any one of [1] to [7], wherein the lower alkyl of the fatty acid lower alkyl ester is an ethyl group.

[0014] The cleaning composition having the above-described form is a cleaning composition that can maintain a transparent appearance for a long period of time, even under harsh conditions. Furthermore, the cleaning composition having the above-described form is a cleaning composition that does not separate for a long period of time, even under harsh conditions, and provides a moisturizing effect.

[0015] [9] The method also includes a step of blending an oil containing a lower alkyl ester of a fatty acid derived from a natural oil and a fatty acid glyceride derived from the natural oil, for the purpose of producing a cleaning composition.

[0016] In the above manufacturing method, the cleaning composition may contain, in addition to the cleaning agent, an oil or an oil and a fragrance. By using the above manufacturing method, it is possible to provide a cleaning composition that can maintain a transparent appearance for a long period of time even under harsh conditions, even when it contains an oil or an oil and a fragrance. Furthermore, by using the above manufacturing method, it is possible to provide a cleaning composition that does not separate for a long period of time under harsh conditions and provides a moisturizing effect, even when it contains an oil or an oil and a fragrance.

[0017]

[10] This is also a method for improving the stability of a cleaning composition, which involves incorporating an oil containing a lower alkyl ester of fatty acids derived from natural oils and a fatty acid glyceride derived from the natural oils.

[0018] In the above method, the cleaning composition may contain, in addition to the cleaning agent, an oil or an oil and a fragrance. The above method provides a cleaning composition that maintains a transparent appearance for a long period of time under harsh conditions, even when it contains an oil or an oil and a fragrance. Furthermore, the above method provides a cleaning composition that does not separate for a long period of time under harsh conditions and provides a moisturizing effect, even when it contains an oil or an oil and a fragrance. [Effects of the Invention]

[0019] According to the present invention, a novel cleaning composition containing an oil agent comprising fatty acid esters derived from natural oils and fats can be provided. [Modes for carrying out the invention]

[0020] Hereinafter, preferred embodiments of the present invention will be described, but the technical scope of the present invention is not limited to the following embodiments.

[0021] <Detergent composition> The present invention is a detergent composition containing an oil agent comprising a lower alkyl ester of a fatty acid derived from natural oils and fats and a glyceride of the fatty acid derived from the natural oils and fats. Hereinafter, preferred embodiments of the oil agent will be described.

[0022] (1) Oil agent In the present embodiment, the oil agent contains a lower alkyl ester of a fatty acid derived from natural oils and fats and a glyceride of the fatty acid derived from the natural oils and fats.

[0023] In the present embodiment, the fatty acid glyceride includes fatty acid triglyceride, fatty acid diglyceride, and fatty acid monoglyceride.

[0024] The content mass of the oil agent in the detergent composition is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, more preferably 0.3% by mass or more, more preferably 0.4% by mass or more, and more preferably 0.5% by mass or more of the whole detergent composition.

[0025] The content mass of the oil agent in the detergent composition is preferably 3% by mass or less, more preferably 2.8% by mass or less, more preferably 2.6% by mass or less, more preferably 2.4% by mass or less, and more preferably 2.2% by mass or less of the whole detergent composition.

[0026] (1-1) Natural oils and fats Examples of the natural oils and fats from which the oil agent is derived include natural oils and fats of animal origin and natural oils and fats of plant origin. Among them, it is preferable to use natural oils and fats of plant origin.

[0027] Examples of natural oils derived from plants include palm oil, palm kernel oil, soybean oil, rapeseed oil, high-oleic rapeseed oil, sunflower oil, high-oleic sunflower oil, corn oil, coconut oil, palm olein oil, palm stearin oil, castor oil, peach kernel oil, sesame oil, olive oil, almond oil, avocado oil, jojoba oil, rice bran oil, safflower oil, high-oleic safflower oil, rice bran oil, cottonseed oil, linseed oil, perilla oil, grapeseed oil, chia seed oil, pumpkin seed oil, argan oil, walnut oil, macadamia nut oil, and shea butter. Modified oils obtained by fractionation, hydrogenation, transesterification, etc., and mixtures thereof may also be included. Both refined and unrefined versions of these oils can be used, but refined versions are preferred. Furthermore, in the present invention, it is preferable to use one or more selected from the above oils and fats.

[0028] In this invention, the natural oil is preferably one or more selected from palm oil, palm kernel oil, soybean oil, rapeseed oil, high oleic rapeseed oil, and sunflower oil.

[0029] Furthermore, the natural oils and fats in the present invention are not particularly limited by their fatty acid composition, but it is preferable that they contain a large amount of oleic acid, and the mass ratio of oleic acid in the natural oils and fats to the total fatty acid composition mass is preferably 10% by mass or more, more preferably 35% by mass or more, more preferably 40% by mass or more, more preferably 50% by mass or more, and more preferably 60% by mass or more.

[0030] By using the above-described form of oil, a cleaning composition can be provided that maintains a transparent appearance for a long period of time, even under harsh conditions. Furthermore, by using the above-described form of oil, a cleaning composition can be provided that does not separate for a long period of time, even under harsh conditions, and provides a moisturizing effect.

[0031] (1-2) Lower alkyl esters of fatty acids derived from natural oils and fats Lower alkyl esters of fatty acids derived from natural oils can be produced by transesterification reactions of natural oils.

[0032] In this invention, the term "lower alkyl ester of fatty acid" refers to a lower alkyl ester compound of a fatty acid.

[0033] The amount of lower alkyl fatty acid ester in the oil contained in the cleaning composition according to the present invention is 40% by mass or more and 80% by mass or less of the total oil.

[0034] The amount of fatty acid lower alkyl ester in the oil formulation is preferably 42% by mass or more, more preferably 44% by mass or more, more preferably 46% by mass or more, more preferably 48% by mass or more, more preferably 50% by mass or more, and even more preferably 52% by mass or more of the total amount of the oil formulation.

[0035] The amount of fatty acid lower alkyl ester in the oil formulation is preferably 77% by mass or less, more preferably 74% by mass or less, more preferably 73% by mass or less, more preferably 70% by mass or less, more preferably 67% by mass or less, more preferably 63% by mass or less, and even more preferably less than 63% by mass of the total oil formulation.

[0036] In a preferred embodiment of the present invention, the number of carbon atoms in the lower alkyl group of the fatty acid lower alkyl ester is preferably 1 or more, more preferably 2 or more.

[0037] In a preferred embodiment of the present invention, the number of carbon atoms in the lower alkyl group of the fatty acid lower alkyl ester is preferably 5 or less, more preferably 4 or less, and more preferably 3 or less.

[0038] In particular, it is preferable that the lower alkyl group of the fatty acid lower alkyl ester is an ethyl group (number of carbon atoms: 2).

[0039] By using the above-described form of oil, a cleaning composition can be provided that maintains a transparent appearance for a long period of time, even under harsh conditions. Furthermore, by using the above-described form of oil, a cleaning composition can be provided that does not separate for a long period of time, even under harsh conditions, and provides a moisturizing effect.

[0040] (1-3) Fatty acid glycerides derived from natural oils and fats Fatty acid glycerides derived from natural oils and fats can be produced by transesterification of natural oils and fats. In this invention, fatty acid glycerides refer to ester compounds of fatty acids and glycerol. Esters include mono, di, and triesters. The fatty acid glycerides in this invention have a fatty acid composition derived from natural oils and fats.

[0041] The amount of fatty acid glycerides in the oil is preferably 14% by mass or more, more preferably 17% by mass or more, more preferably 20% by mass or more, more preferably 23.5% by mass or more, more preferably 27% by mass or more, more preferably 30% by mass or more, more preferably 33.5% by mass or more, and even more preferably 36% by mass or more of the total amount of oil.

[0042] The amount of fatty acid glycerides in the oil is preferably 60% by mass or less, more preferably 57.5% by mass or less, more preferably 55% by mass or less, more preferably 52.5% by mass or less, more preferably 50% by mass or less, more preferably 47.5% by mass or less, more preferably 45% by mass or less, and even more preferably 43% by mass or less of the total amount of the oil.

[0043] (A) Fatty acid triglycerides The amount of fatty acid triglycerides in the oil contained in the cleaning composition according to the present invention is 3% by mass or more and 15% by mass or less of the total amount of oil.

[0044] The amount of fatty acid triglycerides in the oil formulation is preferably 3.5% by mass or more, more preferably 4% by mass or more, more preferably 4.5% by mass or more, more preferably 5% by mass or more, more preferably 5.5% by mass or more, and even more preferably 6% by mass or more of the total oil formulation.

[0045] The amount of fatty acid triglycerides in the oil formulation is preferably 14% by mass or less of the total oil formulation, more preferably 13% by mass or less, more preferably 12% by mass or less, more preferably 11% by mass or less, more preferably 10% by mass or less, more preferably 9% by mass or less, and even more preferably 8% by mass or less.

[0046] (B) Fatty acid diglycerides The amount of fatty acid diglycerides in the oil contained in the cleaning composition according to the present invention is 3% by mass or more and 25% by mass or less of the total oil.

[0047] The amount of fatty acid diglycerides in the oil formulation is preferably 5% by mass or more, more preferably 7% by mass or more, more preferably 9% by mass or more, more preferably 11% by mass or more, more preferably 13% by mass or more, more preferably 15% by mass or more, and even more preferably 16% by mass or more of the total oil formulation.

[0048] The amount of fatty acid diglycerides in the oil formulation is preferably 24% by mass or less, more preferably 23% by mass or less, more preferably 22% by mass or less, more preferably 21% by mass or less, more preferably 20% by mass or less, and even more preferably 19% by mass or less of the total amount of the oil formulation.

[0049] (C) Fatty acid monoglycerides The amount of fatty acid monoglycerides in the oil contained in the cleaning composition according to the present invention is 8% by mass or more and 20% by mass or less of the total oil.

[0050] The amount of fatty acid monoglycerides in the oil formulation is preferably 8.5% by mass or more, more preferably 9% by mass or more, more preferably 10% by mass or more, more preferably 11% by mass or more, more preferably 11.5% by mass or more, more preferably 12.5% ​​by mass or more, and even more preferably 14% by mass or more of the total oil formulation.

[0051] The amount of fatty acid monoglycerides in the oil formulation is preferably 19.5% by mass or less, more preferably 19% by mass or less, more preferably 18.5% by mass or less, more preferably 18% by mass or less, more preferably 17.5% by mass or less, more preferably 17% by mass or less, and even more preferably 16% by mass or less of the total amount of the oil formulation.

[0052] By using the above-described form of oil, a cleaning composition can be provided that maintains a transparent appearance for a long period of time, even under harsh conditions. Furthermore, by using the above-described form of oil, a cleaning composition can be provided that does not separate for a long period of time, even under harsh conditions, and provides a moisturizing effect.

[0053] (1-4) Fatty acid residues of lower alkyl esters and fatty acid glycerides The number of carbon atoms in the fatty acid residues of the fatty acid lower alkyl esters and fatty acid glycerides in the oil is preferably 6 or more, more preferably 12 or more, and more preferably 16 or more.

[0054] The number of carbon atoms in the fatty acid residues of the fatty acid lower alkyl esters and fatty acid glycerides in the oil is preferably 24 or less, more preferably 20 or less, and more preferably 18 or less.

[0055] Examples of fatty acids include acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, behenic acid, erucic acid, ricinoleic acid, and others. Alternatively, a blend of fatty acids derived from natural oils containing these fatty acids may also be used.

[0056] Furthermore, it is preferable that the fatty acid residues of the fatty acid lower alkyl ester and fatty acid glyceride in the oil contain fatty acid residues derived from linoleic acid and linolenic acid.

[0057] Furthermore, the ratio of linoleic acid and linolenic acid content to the total mass of fatty acids contained in the fatty acid residues of the fatty acid lower alkyl esters and fatty acid glycerides in the oil is preferably 0.25 or less, more preferably 0.2 or less, more preferably 0.15 or less, more preferably 0.11 or less, and even more preferably 0.1 or less.

[0058] Furthermore, there is no particularly preferred lower limit for the total content of linoleic acid and linolenic acid when the total mass of fatty acids contained in the fatty acid lower alkyl esters and fatty acid glycerides in the oil is set to 1, but it may be 0.01 or higher, or 0.03 or higher.

[0059] In the present invention, the total mass of saturated fatty acids with C16 or higher, more preferably saturated fatty acids with C16 or higher and C22 or lower, when the total mass of fatty acids contained in the fatty acid alkyl ester is set to 1, is preferably 0.6 or less, more preferably 0.5 or less, more preferably 0.4 or less, and even more preferably 0.3 or less.

[0060] By using the above-described form of oil, a cleaning composition can be provided that maintains a transparent appearance for a long period of time, even under harsh conditions. Furthermore, by using the above-described form of oil, a cleaning composition can be provided that does not separate for a long period of time, even under harsh conditions, and provides a moisturizing effect.

[0061] (1-5) Mass ratio of each substance in the oil formulation

[0062] In the oil formulation, the mass ratio of fatty acid lower alkyl ester to fatty acid glyceride is preferably in the range of 1:0.15 to 1:1.5, more preferably 1:0.2 to 1:1.3, more preferably 1:0.4 to 1:1.2, more preferably 1:0.5 to 1:1.1, more preferably 1:0.6 to 1:1, more preferably 1:0.61 to 1:1, and even more preferably 1:0.62 to 1:1.

[0063] In the oil formulation, the mass ratio of fatty acid lower alkyl ester to fatty acid triglyceride is preferably in the range of 1:0.03 to 1:0.4, more preferably 1:0.05 to 1:0.35, more preferably 1:0.06 to 1:0.3, more preferably 1:0.065 to 1:0.25, more preferably 1:0.07 to 1:0.2, and even more preferably 1:0.095 to 1:0.15.

[0064] In the oil formulation, the mass ratio of fatty acid lower alkyl ester to fatty acid diglyceride is preferably within the range of 1:0.03 to 1:0.65, more preferably 1:0.09 to 1:0.6, more preferably 1:0.15 to 1:0.55, more preferably 1:0.18 to 1:0.5, more preferably 1:0.2 to 1:0.45, and even more preferably within the range of 1:0.25 to 1:0.4.

[0065] In the oil formulation, the mass ratio of fatty acid lower alkyl ester to fatty acid monoglyceride is preferably within the range of 1:0.1 to 1:0.5, more preferably 1:0.12 to 1:0.46, more preferably 1:0.15 to 1:0.42, more preferably 1:0.18 to 1:0.38, more preferably 1:0.2 to 1:0.35, and even more preferably within the range of 1:0.25 to 1:0.35.

[0066] The mass ratio of fatty acid triglycerides to fatty acid diglycerides in the oil formulation is preferably within the range of 1:0.15 to 1:8.5, more preferably 1:0.45 to 1:7.2, more preferably 1:0.75 to 1:6, more preferably 1:1.1 to 1:5.5, more preferably 1:1.3 to 1:5, more preferably 1:1.5 to 1:3.5, more preferably 1:1.5 to 1:3, and even more preferably within the range of 1:1.5 to 1:2.9.

[0067] The mass ratio of fatty acid triglycerides to fatty acid monoglycerides in the oil formulation is preferably within the range of 1:0.5 to 1:7, more preferably 1:0.75 to 1:6, more preferably 1:0.8 to 1:5, more preferably 1:0.9 to 1:4.5, more preferably 1:1 to 1:4, more preferably 1:1 to 1:3, and even more preferably 1:1 to 1:2.5.

[0068] In the oil formulation, the mass ratio of fatty acid diglycerides to fatty acid monoglycerides in the oil formulation is preferably in the range of 1:0.3 to 1:7, more preferably 1:0.35 to 1:5, more preferably 1:0.4 to 1:3, more preferably 1:0.45 to 1:2, more preferably 1:0.5 to 1:1.1, and even more preferably in the range of 1:0.7 to 1:1.

[0069] In the embodiments of the present invention, ratios A(ratio) to B(ratio) can be used in appropriate combinations with each other, regardless of expressions such as "preferably," "more preferably," or "even more preferably."

[0070] By adopting the above configuration, a cleaning composition can be provided that maintains a transparent appearance for a long period of time, even under harsh conditions. Furthermore, by adopting the above configuration, a cleaning composition can be provided that does not separate for a long period of time, even under harsh conditions, and provides a moisturizing effect.

[0071] (2) Other ingredients The cleaning composition of the present invention may contain optional additives that are normally included in cleaning compositions, as long as they do not impair the effects of the present invention. Examples of such additives include humectants, thickeners, extracts, cleaning aids, pigments, colorants, higher alcohols, pearlescent agents, pH adjusters, salts, plant extracts, cooling agents, preservatives, vitamins, fragrances, UV absorbers, amino acids, humectants, cleaning agents, conditioning components, ethanol, water, and the like, as appropriate.

[0072] In a preferred embodiment of the present invention, the cleaning composition includes, in addition to a cleaning agent, an oil or an oil and a fragrance.

[0073] The amount of fragrance in the cleaning composition is preferably 5% by mass or less, 4% by mass or less, more preferably 3.5% by mass or less, more preferably 3% by mass or less, and more preferably 2.5% by mass or less of the total cleaning composition.

[0074] The amount of fragrance in the cleaning composition is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, more preferably 0.3% by mass or more, more preferably 0.4% by mass or more, and more preferably 0.5% by mass or more of the total cleaning composition.

[0075] The fragrance contained in the cleaning composition may be one type or two or more types.

[0076] The fragrance contained in the cleaning composition is not limited to natural or synthetic fragrances, but it is preferable that it contains natural fragrances.

[0077] Furthermore, the fragrances included in the cleaning composition are not limited to oil-soluble fragrances, water-soluble fragrances, emulsified fragrances, or powdered fragrances. Among these, it is preferable to include oil-soluble fragrances.

[0078] Examples of fragrances include hinokitiol, lavender oil, peppermint oil, orange oil, orange peel oil, ylang-ylang oil, frankincense oil, laurel oil, rosewood oil, geranium oil, rose oil, peppermint oil, neroli oil, chamomile oil, grapefruit oil, ginger oil, tea tree oil, eucalyptus oil, sage oil, cypress oil, sandalwood oil, jasmine oil, thyme oil, marjoram oil, lemon oil, clove oil, cardamom oil, cedarwood oil, cinnamon oil, pine oil, patchouli oil, palmarosa oil, fennel oil, petitgrain oil, bergamot oil, mandarin orange oil, myrrh oil, lemongrass oil, juniper berry oil, vetiver oil, yuzu oil, anise oil, spearmint oil, ravintsara oil, and petitgrain oil. In particular, it is preferable to include orange peel oil, orange oil, and / or peppermint oil as fragrances.

[0079] The amount of detergent in the cleaning composition is preferably 36% by mass or less, more preferably 35% by mass or less, and more preferably 34% by mass or less of the total cleaning composition.

[0080] The amount of detergent in the cleaning composition is preferably 5% by mass or more, more preferably 7% by mass or more, more preferably 8% by mass or more, and more preferably 9% by mass or more of the total cleaning composition.

[0081] Here, examples of cleaning agents include soap, anionic surfactants other than soap, cationic surfactants, amphoteric surfactants, and nonionic surfactants. Among these, it is preferable that they contain alkali metal salts of fatty acids.

[0082] Any anionic surfactant known in the art other than soap can be used, such as alkyl ether carboxylates, alkyl sulfates, alkyl sulfonates, alkyl ether sulfosuccinates, alkyl phosphates, alkyl ether phosphates, and acyl amino acid salts.

[0083] As cationic surfactants, any known in the art can be used, for example, alkyltrimethylammonium salts, dialkyldimethylammonium salts, alkylammonium salts, benzalkonium salts, benzethonium salts, pyridinium salts, imidazolinium salts, etc. As amphoteric surfactants, any known in the art can be used, for example, alkyl acetate betaine, imidazolinium betaine, alkylamidopropyl betaine, alkylhydroxysulfobetaine, etc.

[0084] The soap is preferably an alkaline soap.

[0085] The alkaline soap in this invention is produced from a fatty acid and sodium hydroxide and / or potassium hydroxide.

[0086] Examples of fatty acids that produce alkaline soaps include acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, behenic acid, erucic acid, and ricinoleic acid. Alternatively, a blend of fatty acids derived from natural oils containing these fatty acids may also be used.

[0087] In the cleaning composition of the present invention, the alkaline soap is preferably potassium fatty acid.

[0088] When the mass of the oil is set to 1, the mass of the detergent is preferably 6 or more, more preferably 8 or more, and more preferably 15 or more.

[0089] When the mass of fragrance is set to 1, the mass of oil is preferably 0.2 or more, more preferably 0.25 or more, and more preferably 0.5 or more.

[0090] The amount of fragrance, when the amount of oil is set to 1, is preferably 0.2 or more, more preferably 0.25 or more, and more preferably 0.5 or more.

[0091] Furthermore, when the total mass of oils and fragrances is set to 1, the mass of the detergent is preferably 6 or more, more preferably 8 or more, and more preferably 15 or more.

[0092] The amount of fragrance is preferably 0.01 or more, more preferably 0.02 or more, more preferably 0.04 or more, more preferably 0.06 or more, more preferably 0.08 or more, and more preferably 0.1 or more, when the total mass of oil and detergent is set to 1.

[0093] When the total mass of fragrance and detergent is set to 1, the mass of oil is preferably 3 or less, more preferably 2.7 or less, more preferably 2.5 or less, more preferably 2.2 or less, and more preferably 2 or less.

[0094] By adopting the above configuration, a cleaning composition can be provided that maintains a transparent appearance for a long period of time, even under harsh conditions. Furthermore, by adopting the above configuration, a cleaning composition can be provided that does not separate for a long period of time, even under harsh conditions, and provides a moisturizing effect.

[0095] (3) Form of the cleaning composition The cleaning composition of the present invention is preferably in liquid form.

[0096] <Method for producing a cleaning composition> Next, a method for producing the cleaning composition of the present invention will be described. The method for producing the cleaning composition of the present invention includes the step of blending an oil containing a lower alkyl ester of a fatty acid derived from a natural oil and a fatty acid glyceride derived from the natural oil.

[0097] The above manufacturing method makes it possible to provide a cleaning composition that can maintain a transparent appearance for a long period of time, even under harsh conditions. Furthermore, the above manufacturing method makes it possible to provide a cleaning composition that does not separate for a long period of time, even under harsh conditions, and that provides a moisturizing effect.

[0098] The preferred forms of each component and physical properties can be described by referring to the above-mentioned description of the <cleaning composition> of the present invention.

[0099] (1) Production of oils containing fatty acid lower alkyl esters and fatty acid glycerides derived from the aforementioned natural oils and fats. Oils containing fatty acid esters derived from natural oils can be produced by mixing natural oils with lower alcohols and carrying out a transesterification reaction. The transesterification reaction is preferably carried out by an enzymatic method (for example, a transesterification reaction using lipase).

[0100] (2)Blending process The method for producing a cleaning composition in the present invention includes a step of blending an oil containing a lower alkyl ester of fatty acids derived from natural oils and a fatty acid glyceride derived from the natural oils produced in <Method for producing a cleaning composition> (1) with an optional additive that is normally incorporated into a cleaning composition.

[0101] The cleaning composition produced by the above manufacturing method can maintain its transparent appearance for a long period of time, even under harsh conditions. Furthermore, the cleaning composition produced by the above manufacturing method does not separate for a long period of time, even under harsh conditions, and retains its moisturizing properties.

[0102] <Method for improving the stability of cleaning compositions> Next, a method for improving the stability of the cleaning composition of the present invention will be described. The present invention also provides a method for improving the stability of a cleaning composition, which involves incorporating an oil containing a lower alkyl ester of a fatty acid derived from a natural oil and a fatty acid glyceride derived from the same natural oil.

[0103] A preferred embodiment of the method for improving the stability of the cleaning composition of the present invention can provide the matters described above in <Cleaning Composition> and <Method for Manufacturing the Cleaning Composition>. [Examples]

[0104] The present invention will be described in more detail below with reference to examples, but the present invention is not limited to the following examples unless it exceeds the essence of the invention.

[0105] <Manufacturing Example 1> Manufacturing of oils derived from natural oils and fats (corresponding to the oils in this invention; hereinafter simply referred to as oils or oils derived from XX) (1) Manufacturing method A natural oil or fat, such as palm oil, palm kernel oil, soybean oil, rapeseed oil, high-oleic rapeseed oil, or sunflower oil, was mixed with ethanol in a 1:3 molar ratio. Lipozyme TL IM (Novozymes Japan Co., Ltd.) was added at a concentration of 8% by mass of the natural oil or fat, and the mixture was transesterified for 240 minutes at 50°C while stirring. After the transesterification reaction, impurities and glycerin were removed by filtration and purification to obtain an oil derived from natural oils and fats. As a comparative example, a pseudo-oil (see Oil 7 in Table 1) was prepared by mixing 53% by mass of reagent (ethyl oleate, fatty acid lower alkyl ester ratio 99.8% by mass), 32% by mass of reagent (monoolein, fatty acid monoglyceride ratio 52.1% by mass), and 15% by mass of reagent (glycerol dioleate, fatty acid diglyceride ratio 54.1%).

[0106] (2) Analysis Next, the amount of fatty acid glycerides contained in the oils derived from natural oils, and the total amount of linoleic acid and linolenic acid in the total fatty acids of the oils derived from natural oils, were analyzed using standard oil analysis methods (2.4.1.2-2013 (methyl esterification method) and 2.4.2.3-2013 (capillary gas chromatography method)).

[0107] Furthermore, the appearance and color of the manufactured oils were visually evaluated by an evaluator specializing in the production of cleaning compositions, specifically for oils derived from natural oils.

[0108] Furthermore, the fragrance was evaluated by six evaluators specializing in the manufacture of cleaning compositions.

[0109] Furthermore, the self-emulsifying properties of the oil were evaluated according to the following evaluation conditions and criteria. 0.015 g of oil was added to a solution prepared by dissolving 0.020 g of xanthan gum in 4.465 g of water, 0.250 g of glycerin, and 0.250 g of propanediol, and the mixture was vigorously stirred for 1 minute using a vortex mixer. The stirred solution was then placed at 40°C and stored for 7 days. After storage, the appearance of the solution was observed, and the oil was evaluated according to the following evaluation criteria.

[0110] ○: Emulsification is maintained. △: Although there is a slight separation of water and oil, the emulsification is maintained. ×: Emulsification is not maintained, and the water and oil components have separated.

[0111] The acid value of oils derived from natural oils was measured in accordance with "Standard Method for Analysis of Oils and Fats 2.3.1 Acid Value" (Japan Oil Chemists' Society).

[0112] Furthermore, the peroxide value (POV) of oils derived from natural oils was measured in accordance with "Standard Methods for Analyzing Oils and Fats 2.5.2 Peroxide Value" (Japan Oil Chemists' Society).

[0113] (3) Results Table 1 shows the analysis results of oils derived from natural oils.

[0114] [Table 1]

[0115] Table 1 shows that oils derived from natural oils were fragrant oils with a fruity or refreshing fermented aroma. Here, even after being stored at 50°C for 7 days, the oxidative degradation odor of the oils derived from palm oil, high-oleic rapeseed oil, or sunflower oil was minimal. Furthermore, the oil derived from palm kernel oil showed no change in fragrance even after being stored at 50°C for 7 days.

[0116] Furthermore, it was found that oils derived from natural oils and fats exhibit excellent self-emulsifying properties.

[0117] (4) Discussion If the total mass of linoleic acid and linolenic acid in the fatty acid lower alkyl esters and fatty acid glycerides of oils derived from natural oils is less than 28.7% by mass, it is thought that the generation of oxidative degradation odor can be suppressed even under harsh conditions.

[0118] Furthermore, oils derived from natural oils are thought to retain their rich aroma and self-emulsifying properties even under harsh conditions.

[0119] <Test Example 1> Examination of the oil content in alkaline soap (1) Methods and Results A cleaning composition was prepared by mixing an alkaline soap base containing 26.5% cleaning agent components, an oil derived from high-oleic sunflower oil (see Oil 1 in Table 1), salt, and water according to the proportions shown in Table 2 below. The compositions were then stored at 50°C for two weeks, and an evaluator specializing in the manufacture of cleaning compositions evaluated the appearance and condition of the compositions according to the criteria shown below.

[0120] Condition evaluation ○: No floating occurs on the surface of the cleaning composition. Also, no white lines are visible on the rim of the container holding the cleaning composition. ×: Floating on the surface of the cleaning composition and a white line on the rim of the container holding the cleaning composition can be observed.

[0121] Furthermore, five evaluators specializing in the manufacture of cleansing compositions evaluated the moisturizing effect according to the criteria shown below.

[0122] • Moisture evaluation The resulting cleansing agent was used to wash the arms, and the moisturizing effect after towel drying was evaluated. ◎It's very moisturizing. ○ It becomes moist. △It becomes slightly moist. × It doesn't moisturize well.

[0123] The results of the appearance, condition, and moisture evaluation are shown in Table 2. The median line in the table indicates that the measurement / evaluation was not performed.

[0124] [Table 2]

[0125] (2) Consideration The results in Table 2 show that by including an oil agent containing a lower alkyl ester of fatty acids derived from natural oils and a fatty acid glyceride derived from natural oils in the cleaning composition, no floating occurs on the surface of the cleaning composition even under harsh conditions. Furthermore, it was found that with this configuration, no white lines appear on the rim of the container holding the cleaning composition, even under harsh conditions.

[0126] <Test Example 2> Examination of the oil content in alkaline soap and fragrance (1) Methods and Results A cleaning composition was prepared by mixing 26.5% alkaline soap base, natural oil-derived oil, fragrance, salt, and water according to the formulations shown in Table 3 below. The compositions were then stored at 50°C for two weeks, and their appearance, condition, and moisture content were evaluated in the same manner as in Test Example 1. The results are shown in Table 3.

[0127] [Table 3]

[0128] (2) Consideration The results in Table 3 show that by setting the content of alkaline soap to 6 or more, relative to the total content of oils and fragrances in the cleaning composition (which is set to 1), no floating occurs on the surface of the cleaning composition even under harsh conditions. Furthermore, it was found that with this configuration, no white lines appear on the rim of the container holding the cleaning composition, even under harsh conditions.

[0129] Furthermore, the results in Table 3 show that by setting the oil content in the cleaning composition to 0.5% by mass or more and 3% by mass or less, no floating occurs on the surface of the cleaning composition even under harsh conditions. In addition, it was found that with the above configuration, no white lines appear on the rim of the container holding the cleaning composition, even under harsh conditions.

[0130] The results in Table 3 show that by setting the oil content to 0.20 or more relative to the fragrance content in the cleaning composition (where the fragrance content is set to 1), no floating occurs on the surface of the cleaning composition even under harsh conditions. Furthermore, it was found that with this configuration, no white lines appear on the rim of the container holding the cleaning composition, even under harsh conditions.

[0131] <Test Example 3> Examination of other oils and fragrances (1) Methods and Results Cleaning compositions were prepared according to the proportions listed in Table 4 below. They were then stored at 50°C for two weeks, and their appearance, condition, and moisture content were evaluated in the same manner as in Test Example 1. The results are shown in Table 4.

[0132] [Table 4]

[0133] (2) Consideration The results in Table 4 show that by incorporating an oil-based formulation containing lower alkyl esters of fatty acids derived from natural oils and fatty acid glycerides derived from natural oils into the cleaning composition, it is possible to provide a cleaning composition that does not separate for a long period of time, even under harsh conditions, regardless of the type of oil used, and that provides a moisturizing effect.

[0134] Furthermore, the results in Table 4 show that by incorporating an oil-based formulation containing lower alkyl esters of fatty acids derived from natural oils and fatty acid glycerides derived from natural oils into the cleaning composition, it is possible to solubilize fragrances regardless of the type of cleaning agent or fragrance, and to provide a cleaning composition that does not separate for a long period of time, even under harsh conditions, and provides a moisturizing effect.

[0135] Furthermore, from the results in Tables 3 and 4, the cleaning composition contains 40% to 80% by mass of lower alkyl fatty acid esters, and Fatty acid glycerides, 3% to 15% by mass as fatty acid triglycerides 3% to 25% by mass as fatty acid diglycerides, As fatty acid monoglycerides, 8% by mass or more and 20% by mass or less, It was found that by using an oil-based agent containing the above-mentioned oil-based agent, a cleaning composition that can maintain a transparent appearance for a long period of time, even under harsh conditions, can be provided. Furthermore, it was found that by using the above-mentioned oil-based agent, a cleaning composition that does not separate for a long period of time, even under harsh conditions, and provides a moisturizing effect can be provided. [Industrial applicability]

[0136] The cleaning composition of the present invention can be used in bath soaps, hair soaps, facial soaps, and hand soaps.

Claims

1. A cleaning composition containing an oily agent comprising a lower alkyl ester of fatty acids derived from natural oils and a fatty acid glyceride derived from the same natural oil.

2. The cleaning composition according to claim 1, wherein it contains a cleaning agent, and the mass of the cleaning agent is 6 or more when the mass of the oil is set to 1.

3. A cleaning composition according to claim 1, containing a fragrance and a cleaning agent, and satisfying the following conditions (A) and (B): (A) The mass of the cleaning agent is 6 or more when the mass of the oil and fragrance is set to 1. (B) The mass of the oily agent is 0.2 or more when the mass of the fragrance is set to 1.

4. The oil comprises the fatty acid lower alkyl ester and the fatty acid glyceride, The aforementioned fatty acid glycerides are A cleaning composition according to claim 1 or 2, comprising fatty acid triglycerides, fatty acid diglycerides, and fatty acid monoglycerides.

5. The aforementioned oily agent The aforementioned fatty acid lower alkyl ester is in an amount of 40% by mass or more and 80% by mass or less, The aforementioned fatty acid glyceride, 3% to 15% by mass as fatty acid triglycerides 3% to 25% by mass as fatty acid diglycerides As fatty acid monoglycerides, 8% by mass or more and 20% by mass or less, A cleaning composition according to claim 1 or 2, including the cleaning composition according to claim 1 or 2.

6. The cleaning composition according to claim 1 or 2, wherein the fatty acid lower alkyl ester and / or the fatty acid glyceride are enzymatically transesterified.

7. The cleaning composition according to claim 1 or 2, wherein the ratio of the mass content of linoleic acid and linolenic acid when the total mass of fatty acids contained in the fatty acid lower alkyl ester and the fatty acid glyceride is taken as 1 is 0.25 or less.

8. The cleaning composition according to claim 1 or 2, wherein the lower alkyl group of the fatty acid lower alkyl ester is an ethyl group.

9. A method for producing a cleaning composition, comprising the step of blending an oil containing a lower alkyl ester of a fatty acid derived from a natural oil and a fatty acid glyceride derived from the natural oil.

10. A method for improving the stability of a cleaning composition, comprising a formulation containing a lower alkyl ester of fatty acids derived from natural oils and a fatty acid glyceride derived from the same natural oil.

Images