CN117582384A - Liquid composition containing capsules and shampoo packed in container - Google Patents

Liquid composition containing capsules and shampoo packed in container Download PDF

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Publication number
CN117582384A
CN117582384A CN202311037984.6A CN202311037984A CN117582384A CN 117582384 A CN117582384 A CN 117582384A CN 202311037984 A CN202311037984 A CN 202311037984A CN 117582384 A CN117582384 A CN 117582384A
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China
Prior art keywords
capsule
liquid composition
mass
oil
shampoo
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CN202311037984.6A
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Chinese (zh)
Inventor
波多野明男
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George Olivier Co ltd
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George Olivier Co ltd
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Abstract

The present invention provides a capsule liquid composition which can keep a dispersed state for a long time in a liquid medium with high fluidity. A capsule-containing liquid composition comprising (E) oil-containing capsules dispersed in a liquid medium containing at least the following components (A) to (D), wherein the content of each component in the capsule-containing liquid composition is as follows: 5 to 20 mass% of (A) anionic surfactant; 0.5 to 10 mass% of an amphoteric surfactant; (C) 0.05 to 2 mass% of a cationized polymer; (D) 0.5-6% by mass of a thickener; 0.01 to 2 mass percent of (E) oil-containing capsule.

Description

Liquid composition containing capsules and shampoo packed in container
Technical Field
The present invention relates to a capsule liquid composition in which oil-containing capsules are dispersed in a liquid medium, and more particularly, to a capsule liquid composition in which oil-containing capsules can be kept in a dispersed state in a liquid medium having high fluidity for a long period of time. The present invention also relates to a packaged shampoo containing the capsule liquid composition in a container.
Background
As components having various useful properties such as physiological activities and aroma, a variety of lipophilic substances are known. As a method for stably incorporating such a lipophilic component into a liquid medium mainly composed of water, there is known a method using an oil-containing capsule in which an oil phase containing a lipophilic component is encapsulated with a wall material such as a hydrophilic polymer (for example, patent document 1).
Such an oil-containing capsule is easily broken at the time of use, that is, easily broken by physical stress at the time of use, dilution with water, or the like, and thus releases an internal oil component to exert an effect. The liquid composition containing such an oil-containing capsule is used for cleaning skin, hair, and fibers such as clothing.
Prior art literature
Patent literature
Patent document 1: patent publication No. 4256787
Disclosure of Invention
Technical problem
Since the oil-containing capsules have a lower specific gravity than water, they tend to float up when they are mixed in a liquid medium having a high fluidity and stored for a long period of time. If the oil-containing capsules after floating up are intended to be dispersed again uniformly, the oil-containing capsules are destroyed. Therefore, when an oil-containing capsule is to be mixed with a liquid medium, it is necessary to select a liquid medium having low fluidity.
The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a capsule-containing liquid composition in which an oil-containing capsule can be maintained in a dispersed state in a liquid medium having high fluidity for a long period of time.
Means for solving the problems
The present inventors have studied to solve the above problems, and as a result, have found that the above problems can be solved by dispersing an oil-containing capsule in a liquid medium containing an anionic surfactant, an amphoteric surfactant, a cationized polymer and a thickener, and have completed the present invention. Specifically, the present invention is as follows.
[ 1 ] A capsule-containing liquid composition comprising (E) oil-containing capsules dispersed in a liquid medium containing at least the following components (A) to (D),
the capsule-containing liquid composition comprises the following components in percentage by weight:
(A) 5 to 20 mass% of anionic surfactant;
(B) 0.5 to 10 mass percent of amphoteric surfactant;
(C) 0.05 to 2 mass% of a cationized polymer;
(D) 0.5 to 6 mass percent of thickener; and
(E) 0.01 to 2 mass percent of oil-containing capsule.
The capsule-containing liquid composition according to [ 1 ], wherein the acrylic acid ester copolymer is contained as the thickener (D).
The capsule-containing liquid composition according to [ 1 ], wherein the cationized cellulose is contained as the cationized polymer (C).
The capsule-containing liquid composition according to [ 1 ], wherein the liquid medium contains (F) a nonionic surfactant,
the content of the capsule-containing liquid composition is 1-20 mass% of (F) nonionic surfactant.
The capsule-containing liquid composition according to [ 1 ], wherein the liquid medium contains (G) a polyol,
the content of the (G) polyol in the capsule-containing liquid composition is 0.05-8 mass%.
The capsule liquid composition according to [ 1 ], wherein the specific gravity of the oil-containing capsule (E) is 0.80 to 0.98g/cm 3
The capsule-containing liquid composition according to [ 1 ], wherein the viscosity of the liquid medium is 8000 to 36000 mPa.s.
The capsule-containing liquid composition according to any one of [ 1 ] to [ 7 ], wherein the capsule-containing liquid composition is used for shampooing.
The packaged shampoo according to item [ 9 ], which is obtained by storing the capsule-containing liquid composition according to item [ 8 ] in a container having at least a storage portion.
The packaged shampoo according to item 9, wherein at least a part of the storage portion is made of a transparent material that visibly stores the capsule-containing liquid composition.
The packaged shampoo according to item [ 11 ], wherein the container comprises a discharge portion capable of discharging the contained capsule liquid composition.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the capsule liquid composition of the present invention, the oil-containing capsules can be kept in a dispersed state in a liquid medium having high fluidity for a long period of time.
Detailed Description
Hereinafter, embodiments of the present invention will be described.
Liquid composition containing capsules
The capsule liquid composition according to one embodiment of the present invention is obtained by dispersing (E) oil-containing capsules in a liquid medium containing at least (a) an anionic surfactant, (B) an amphoteric surfactant, (C) a cationized polymer, and (D) a thickener.
It is thought that (a) anionic surfactants and (B) amphoteric surfactants form rope micelles in a liquid medium. And (C) the cationic groups of the cationized polymer interact with the anionic hydrophilic groups of (A) the anionic surfactant and (B) the amphoteric surfactant. From this, it was found that the rope-like micelle formed by the (a) anionic surfactant and the (B) amphoteric surfactant and the (C) cationized polymer form a higher-order network structure in a liquid medium. It is believed that the (D) thickener enhances the higher order network structure.
It is considered that the higher-order network structure is not formed by firmly interacting components, and fluidity of the liquid medium is sufficiently maintained. When the oil-containing capsules (E) are dispersed in a liquid medium having such a higher-order network structure, the oil-containing capsules (E) can be prevented from floating up and kept in a dispersed state for a long period of time, regardless of whether or not the specific gravity of the oil-containing capsules (E) is smaller than that of the liquid medium.
However, the present embodiment is not limited to this mechanism of action.
(A) Anionic surfactants
(A) The anionic surfactant is a surfactant having an anionic hydrophilic group.
In this embodiment, it can be seen that the anionic surfactant (a) forms a rope-like micelle in a liquid medium together with the amphoteric surfactant (B) described later.
Specific examples of the anionic surfactant (a) include:
n-acyl amino acid salts such as N-cocoyl fatty acid acyl-L-glutamic acid triethanolamine (cocoyl glutamic acid TEA), sodium lauroyl methylaminopropionate, sodium lauroyl aspartic acid, sodium stearoyl glutamate, sodium myristoyl glutamate, and sodium palmitoyl proline;
n-acyl taurates such as sodium cocoyl fatty acid methyl taurate (sodium cocoyl methyl taurate) and sodium lauroyl methyl taurate;
alkyl or alkenyl sulfonates such as sodium olefin (C14-16) sulfonate;
polyoxyalkylene alkyl ether sulfates such as sodium polyoxyethylene lauryl ether sulfate (sodium laureth sulfate);
alkyl sulfates such as sodium dodecyl sulfate and sodium hexadecyl sulfate;
saturated or unsaturated fatty acid salts such as sodium laurate and sodium oleate;
polyoxyethylene alkyl ether carboxylates such as polyoxyethylene sodium lauryl ether acetate (e.g., sodium lauryl ether sulfate-4-carboxylate);
phosphate salts such as sodium dodecyl phosphate;
sulfosuccinic acid ester salts such as disodium dodecyl sulfosuccinate.
These anionic surfactants can be used singly or in combination of two or more.
Among them, particularly when the liquid capsule-containing composition of the present embodiment is used for shampoo application, from the viewpoint of feel of use (particularly foaming, good foam retention, etc., low irritation, etc.) as a shampoo, N-acyl amino acid salts, N-acyl taurates, and alkyl or alkenyl sulfonates are preferably used, and among them, N-coco fatty acid acyl-L-glutamic acid triethanolamine (cocoyl glutamic acid TEA), coco fatty acid sodium methyl taurate (cocoyl sodium methyl taurate), sodium olefin (C14-16) sulfonate, etc. are particularly preferably used.
The content of the anionic surfactant (a) in the capsule-containing liquid composition is preferably 5% by mass or more, more preferably 8% by mass or more, and particularly preferably 9% by mass or more. By setting the content of the anionic surfactant (a) to the above lower limit or more, the effect of the present embodiment, that is, the oil-containing capsule is easily maintained in a dispersed state in a liquid medium for a long period of time, can be more effectively exhibited. In addition, when the capsule-containing liquid composition of the present embodiment is used for shampoo applications described later, if the content of the anionic surfactant (a) is not less than the above lower limit, the use feel (particularly, lather, foam retention, hair care feel, etc.) as a shampoo is good.
The content of the anionic surfactant (a) is preferably 20 mass% or less, more preferably 15 mass% or less, and particularly preferably 12 mass% or less. By setting the content of the anionic surfactant (a) to the above upper limit or less, the anionic surfactant (a) is less likely to precipitate even after the capsule-containing liquid composition is stored for a long period of time, and the appearance (particularly, transparency) of the capsule-containing liquid composition is easily and satisfactorily maintained.
In the present embodiment, the content of each component in the capsule liquid composition is the content of the whole capsule liquid composition including the oil-containing capsule (E) described later.
(B) Amphoteric surfactants
(B) The amphoteric surfactant is a surfactant having an anionic group and a cationic group as hydrophilic groups in 1 molecule.
In this embodiment, it can be seen that the amphoteric surfactant (B) forms a rope-like micelle in a liquid medium together with the anionic surfactant (a).
Specific examples of the (B) amphoteric surfactant include:
glycine betaines such as dodecyl dimethyl amino acetic acid betaine (dodecyl betaine), cocoalkyl dimethyl amino acetic acid betaine (cocoa betaine), lauramidopropyl dimethyl amino acetic acid betaine (lauramidopropyl betaine), cocofatty acid amidopropyl dimethyl amino acetic acid betaine (cocoamidopropyl betaine);
sulfobetaines such as dodecyl dimethyl amino acid hydroxysulfobetaine (dodecyl hydroxysulfobetaine), cocoalkyl dimethyl amino acid hydroxysulfobetaine (cocoa hydroxysulfobetaine), lauramidopropyl dimethyl amino acid hydroxysulfobetaine (lauramidopropyl hydroxysulfobetaine), cocofatty acid amidopropyl dimethyl amino acid hydroxysulfobetaine (cocoamidopropyl hydroxysulfobetaine), palm fatty acid amidopropyl dimethyl amino acid hydroxysulfobetaine (palm kernel fatty acid amidopropyl hydroxysulfobetaine);
imidazoline betaines such as N-lauroyl-N '-carboxymethyl-N' -hydroxyethyl ethylenediamine sodium (lauroyl amphoacetate Na), N-cocoyl-N '-carboxymethyl-N' -hydroxyethyl ethylenediamine sodium (cocoyl amphoacetate Na), and the like.
These amphoteric surfactants can be used singly or in combination of two or more.
Among them, especially when the liquid capsule-containing composition of the present embodiment is used for shampoo application, it is preferable to use glycine betaine and sulfobetaine from the viewpoint of feel of use as a shampoo (especially foaming, foam quality such as good foam retention, low irritation, etc.), and among these, cocamidopropyl betaine and dodecyldimethylaminoacetic hydroxysulfobetaine are particularly preferable.
The content of the amphoteric surfactant (B) in the capsule-containing liquid composition is preferably 0.5 mass% or more, more preferably 0.7 mass% or more, and particularly preferably 1 mass% or more. When the content of the amphoteric surfactant (B) is equal to or higher than the lower limit, the effect of the present embodiment, that is, the oil-containing capsule is easily maintained in a dispersed state in a liquid medium for a long period of time, is more effectively exhibited.
The content of the amphoteric surfactant (B) is preferably 10 mass% or less, more preferably 6 mass% or less, and particularly preferably 4 mass% or less. By setting the content of the amphoteric surfactant (B) to the above upper limit or less, the amphoteric surfactant (B) is less likely to precipitate even after the capsule-containing liquid composition is stored for a long period of time, and the appearance (particularly, transparency) of the capsule-containing liquid composition is easily and satisfactorily maintained.
(C) Cationized polymers
The cationized polymer is a polymer having a cationic group in the molecule.
In this embodiment, (C) the cationized polymer interacts with a rope micelle formed by (a) the anionic surfactant and (B) the amphoteric surfactant in a liquid medium. In particular, it can be seen that the cationic groups of (C) cationized polymers interact with the anionic hydrophilic groups of (A) anionic surfactants and (B) amphoteric surfactants.
In addition, when the capsule-containing liquid composition of the present embodiment is used for shampoo purposes described below, the (C) cationized polymer can exert a hair care effect on hair.
Cationic polymers can be obtained by introducing cationic nitrogen-containing groups such as quaternary ammonium salts and protonated amino groups into natural polymers or synthetic polymers.
Specific examples of the (C) cationizable polymer include: cationic natural polymers such as cationized cellulose, cationized guar gum, and cationized locust bean gum; homopolymers of diallyl quaternary ammonium salts, diallyl quaternary ammonium salt-acrylamide copolymers, quaternized polyvinylpyrrolidone derivatives, polyethylene glycol polyamine condensates, vinylimidazole trichloride-vinylpyrrolidone copolymers, hydroxyethylcellulose-dimethyldiallyl ammonium chloride copolymers, vinylpyrrolidone-quaternized dimethylaminoethyl methacrylate copolymers, polyvinylpyrrolidone-alkyl aminoacrylates-vinylcaprolactam copolymers, vinylpyrrolidone-methacrylamidopropyl trimethylammonium chloride copolymers, alkylacrylamide-acrylic acid ester-alkylaminoalkylacrylamide-polyethylene glycol methacrylate copolymers, adipic acid-dimethylaminohydroxypropyl ethylenetriamine copolymers, and the like.
These cationized polymers can be used singly or in combination of two or more.
Among them, the cationized cellulose is preferable, and particularly preferable is one obtained by adding glycidyl trimethyl ammonium chloride to hydroxyethyl cellulose (polyquaternium-10).
The content of the cationized polymer (C) in the capsule-containing liquid composition is preferably 0.05 mass% or more, more preferably 0.3 mass% or more, and particularly preferably 0.4 mass% or more. By setting the content of the cationized polymer (C) to the above lower limit value or more, the effect of the present embodiment, that is, the oil-containing capsule is easily maintained in a dispersed state in a liquid medium for a long period of time, is more effectively exhibited. When the content of the cationized polymer (C) is not less than the lower limit, the use feeling (particularly, hair care feeling) as a shampoo is good.
The content of the cationized polymer (C) is preferably 2% by mass or less, more preferably 1% by mass or less, and particularly preferably 0.6% by mass or less. By setting the content of the (C) cationized polymer to the above upper limit or less, the (C) cationized polymer is less likely to precipitate even after long-term storage of the capsule-containing liquid composition, and the appearance (particularly, transparency) of the capsule-containing liquid composition is easily and favorably maintained.
(D) Thickening agent
(D) The thickener is a component for increasing the viscosity of the liquid medium. However, the "thickener" in the present embodiment does not include substances classified as (a) to (C) described above or substances classified as (F) to (G) described below.
In this embodiment, (D) the thickener functions to enhance the higher-order network structure formed by (a) the anionic surfactant, (B) the amphoteric surfactant, and (C) the cationized polymer in the liquid medium.
As the thickener (D), a water-soluble polymer can be used. Examples of the water-soluble polymer include: natural polymers, semisynthetic polymers, synthetic polymers, and inorganic polymers.
Examples of the natural polymer include: polysaccharides such as guar gum, locust bean gum, quince seed, carrageenan, xanthan gum, hyaluronic acid, dextrin, pullulan, etc.; proteins such as gelatin, casein, albumin, and collagen.
Examples of the semisynthetic polymer include: cellulose derivatives such as methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, salts thereof, and hydroxypropyl methyl cellulose; alginic acid derivatives such as propylene glycol alginate and alginate.
Examples of the synthetic polymer include: acrylic polymers such as sodium polyacrylate, polyacrylamide, and acrylate copolymers (copolymers of two or more monomers selected from alkyl acrylates (C1-C4), alkyl methacrylates (C1-C4), and acrylic acid and methacrylic acid); vinyl polymers such as polyvinyl alcohol (PVA), polyvinylpyrrolidone (PVP), and carboxyvinyl polymer (carbomer); polyethylene glycol, and the like.
Examples of the inorganic polymer include: bentonite, magnesium aluminum silicate, laponite, hectorite, silicic anhydride, and the like.
The water-soluble polymer may be used singly or in combination of two or more.
Among these water-soluble polymers, acrylic polymers are preferable, and acrylate copolymers are particularly preferable.
The content of the thickener (D) in the capsule-containing liquid composition is preferably 0.5 mass% or more, more preferably 1 mass% or more, and particularly preferably 2 mass% or more. By setting the content of the thickener (D) to the above lower limit value or more, the effect of the present embodiment, that is, the oil-containing capsule is easily maintained in a dispersed state in a liquid medium for a long period of time, is more effectively exhibited.
The content of the thickener (D) is preferably 6% by mass or less, more preferably 4% by mass or less, and particularly preferably 3% by mass or less. When the content of the thickener (D) is not more than the above-mentioned upper limit, particularly when the liquid composition containing capsules of the present embodiment is used for shampoo application, the feel in use (particularly lathering, foam retention, hair feel) as a shampoo is good.
(E) Oil-containing capsule
The oil-containing capsule (E) used in the present embodiment is obtained by encapsulating an oil phase containing a lipophilic component with a wall material such as a hydrophilic polymer.
(E) The type of the oil-containing capsule is not particularly limited as long as it is easily broken at the time of use, that is, easily broken by physical stress or the like at the time of use.
When the capsule liquid composition of the present embodiment is used for shampoo application, the oil-containing capsule is destroyed when the capsule liquid composition is used (i.e., when shampoo is performed), and the internal oil (and the lipophilic component contained therein) is released, so that the hair care effect on hair and the like can be exhibited.
As the capsule wall material, hydrophilic polymers are exemplified by: collagen such as gelatin and hydrolyzed collagen, and derivatives thereof; polysaccharides such as pectin, carrageenan, alginic acid, pullulan, dextrin, guar gum, etc., and derivatives thereof; cellulose derivatives such as methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, and carboxymethyl cellulose; synthetic polymers such as polyvinyl alcohol and acrylic polymers.
The component contained in the oil phase contained in the capsule is not particularly limited as long as it is a water-insoluble component. Specific examples of such water-insoluble components include, for example: animal and vegetable oils such as palm oil, sunflower oil, olive oil, camellia oil, shark liver oil, etc.; hydrocarbon oils such as liquid paraffin and ester oil; various silicone oils such as dimethylpolysiloxane and derivatives thereof. In addition, the oil phase may contain fat-soluble vitamins such as tocopherol and retinol; squalane; perfume, etc.
The content of the component constituting the oil phase in the oil-containing capsule can be set to, for example, 5 to 98% by mass, and further 50 to 96% by mass.
(E) The average particle diameter of the oil-containing capsules is not particularly limited, and may be, for example, 0.1 to 5mm, and further 0.5 to 2mm.
The specific gravity of the oil-containing capsule (E) can be set to, for example, 0.80 to 0.98g/cm 3 And can be set to 0.85-0.95 g/cm 3 . When the oil-containing capsules (E) having such a specific gravity are dispersed in a normal liquid medium and stored for a long period of time, they float up to the upper part of the liquid medium, but according to the present embodiment, even the oil-containing capsules (E) having such a specific gravity can be prevented from floating up and kept in a dispersed state for a long period of time.
The content of the oil-containing capsule (E) in the capsule-containing liquid composition is preferably 0.01 mass% or more, more preferably 0.05 mass% or more, and particularly preferably 0.1 mass% or more. When the content of the oil-containing capsule (E) is not less than the above lower limit, the liquid composition containing a capsule of the present embodiment is excellent in feel of use as a shampoo (particularly, feel of hair care, etc.), particularly when used for shampoo applications.
The content of the oil-containing capsule (E) is preferably 2% by mass or less, more preferably 1.2% by mass or less, and particularly preferably 1% by mass or less. When the content of the oil-containing capsules (E) is equal to or less than the upper limit, it is easy to uniformly disperse the oil-containing capsules (E) in a liquid medium when producing a capsule-containing liquid composition. In the obtained capsule-containing liquid composition, the oil-containing capsules are easily kept in a dispersed state for a long period of time.
(F) Nonionic surfactant
The capsule-containing liquid composition of the present embodiment may further contain (F) a nonionic surfactant in its liquid medium.
Nonionic surfactants are surfactants in which the hydrophilic groups do not dissociate ionically in water.
In a preferred embodiment of the present embodiment, by containing (F) the nonionic surfactant in the liquid medium, even when a component having low solubility is blended in the liquid medium, the nonionic surfactant can suppress precipitation of the component. Therefore, the appearance (particularly, transparency) of the liquid composition containing capsules can be easily maintained. When the capsule-containing liquid composition of the present embodiment is used for shampoo applications described later, the use feeling (particularly foaming and foam retention) as a shampoo is good by containing (F) a nonionic surfactant.
Specific examples of the nonionic surfactant (F) include:
fatty acid alkanolamides such as coconut fatty acid monoethanolamide (cocoamide MEA), coconut fatty acid diethanolamide (cocoamide DEA), lauric acid monoethanolamide (lauramide MEA), lauric acid diethanolamide (lauramide DEA), lauric acid monoisopropanolamide (lauramide MIPA), palmitic acid monoethanolamide (palmitamide MEA), palmitic acid diethanolamide (palmitamide DEA), and coco fatty acid methyl ethanolamide (coco amide methyl MEA);
polyoxyalkylene addition of various polyoxyalkylene groups such as lauryl ether sulfuric acid (polyoxyethylene lauryl ether), cetyl polyether (polyoxyethylene cetyl ether), stearyl polyether (polyoxyethylene stearyl ether), behenyl polyether (polyoxyethylene behenyl ether), isostearyl polyether (polyoxyethylene isostearyl ether), octyldodecyl polyether (polyoxyethylene octyldodecyl ether) and polyoxyethylene-polyoxypropylene cetyl ether to polyoxyalkylene alkyl ethers;
alkyl glucosides such as octyl glucoside and (octyl/decyl) glucoside;
polyoxyalkylene glycols;
alkylene glycol fatty acid esters such as ethylene glycol monostearate and propylene glycol monostearate;
polyalkylene glycol fatty acid esters such as polyethylene glycol distearate, polyethylene glycol diisostearate, polyethylene glycol monooleate and polyethylene glycol dioleate;
sorbitan fatty acid esters such as sorbitan monooleate, sorbitan monoisostearate, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan sesquioleate, sorbitan trioleate, diglycerol sorbitan penta-2-ethylhexanoate, diglycerol sorbitan tetra-2-ethylhexanoic acid, and the like;
polyoxyalkylene glycerin fatty acid esters such as polyoxyethylene glycerin monostearate, polyoxyethylene glycerin monoisostearate and polyoxyethylene glycerin triisostearate;
polyalkylene glycol sorbitan fatty acid esters such as polyethylene glycol sorbitan monooleate, polyethylene glycol sorbitan monostearate, polyethylene glycol sorbitan tetraoleate and polyethylene glycol sorbitan tetraisostearate;
sorbitol fatty acid esters;
polyoxyethylene sorbitol monolaurate, polyoxyethylene sorbitol monooleate, polyoxyethylene sorbitol tetraoleate, polyoxyethylene sorbitol pentaoleate, polyoxyethylene sorbitol monostearate and the like.
These nonionic surfactants can be used singly or in combination of two or more.
Among them, fatty acid alkanolamides, alkyl glucosides, polyalkylene glycol sorbitan fatty acid esters and polyoxyalkylene sorbitol fatty acid esters are preferably used, and cocofatty acid diethanolamide (cocoamide DEA), lauric acid diethanolamide (lauramide DEA), cocofatty acid methyl ethanolamide (cocoamide methyl MEA), (octyl/decyl) glucoside, polyethylene glycol sorbitan tetraisostearate and polyoxyethylene tetraoleate are particularly preferably used.
The content of the nonionic surfactant (F) in the capsule-containing liquid composition is preferably 1% by mass or more, more preferably 3% by mass or more, and particularly preferably 5% by mass or more. By setting the content of the nonionic surfactant (F) to the above lower limit or more, precipitation of components having low solubility can be effectively suppressed, and the appearance (particularly, transparency) of the capsule-containing liquid composition can be easily maintained. When the capsule-containing liquid composition of the present embodiment is used for shampoo applications described later, the use feeling (particularly, lathering and foam retention) as a shampoo is good if the content of the nonionic surfactant (F) is not less than the above lower limit.
The content of the nonionic surfactant (F) is preferably 20 mass% or less, more preferably 18 mass% or less, and particularly preferably 16 mass% or less. By setting the content of the nonionic surfactant (F) to the above upper limit or less, the nonionic surfactant (F) is less likely to precipitate even after the capsule-containing liquid composition is stored for a long period of time, and the appearance (particularly, transparency) of the capsule-containing liquid composition is easily and satisfactorily maintained.
(G) Polyhydric alcohol
The capsule-containing liquid composition of the present embodiment may further contain (G) a polyol in its liquid medium.
(G) The polyol has two or more hydroxyl groups in the molecule. However, the substances contained in the nonionic surfactant (F) are not included in the polyol (G) of the present embodiment.
In a preferred embodiment of the present embodiment, the liquid medium contains (G) a polyol, and thus, when the liquid composition containing capsules of the present embodiment is used for shampoo application, the feel of the shampoo (in particular, lathering, foam retention, and hair care feel) is good.
Specific (G) polyols include, for example: lower polyols such as ethylene glycol, propylene glycol (1, 2-propanediol), 1, 3-propanediol, glycerol, 1, 2-butanediol, 1, 3-butanediol, 1, 2-pentanediol, 1, 2-hexanediol, and 1,2, 4-butanetriol; ethers of polyhydric alcohols such as diethylene glycol, dipropylene glycol, and diglycerol; sugar such as glucose, maltose, sucrose, and fructose; sugar alcohols such as xylitol, sorbitol, inositol, and maltitol. These can be used singly or in combination of two or more.
Among them, glycerol, 1, 2-hexanediol, 1, 3-butanediol, 1, 3-propanediol are preferably used, and glycerol and 1, 2-hexanediol are particularly preferably used.
The content of the polyol (G) in the capsule-containing liquid composition is preferably 0.05 mass% or more, more preferably 0.1 mass% or more, and particularly preferably 0.2 mass% or more. When the content of the polyol (G) is not less than the above lower limit, particularly when the liquid composition containing capsules of the present embodiment is used for shampoo application, the feel in use (particularly lathering, foam retention) as a shampoo is good.
The content of the (G) polyol is preferably 8 mass% or less, more preferably 5 mass% or less, and particularly preferably 3 mass% or less. By setting the content of the polyol (G) to the above upper limit value or less, the feel in use (particularly the foaming rate and the foam amount) as a shampoo is good.
Other ingredients
The above-mentioned capsule liquid composition may contain a pH adjuster such as sodium hydroxide or citric acid within a range that does not impair the effects of the present embodiment; a salt; chelating agents such as EDTA; preservatives such as phenoxyethanol and methyl paraben; perfume, etc.
In addition, when the liquid composition containing capsules of the present embodiment is used for shampoo application, a hair conditioner may be blended from the viewpoint of improving the hair care effect on hair, and the like.
Viscosity of the mixture
The viscosity of the liquid medium in the capsule-containing liquid composition of the present embodiment is preferably 8000mpa·s or more, more preferably 10,000mpa·s or more, and particularly preferably 12000mpa·s or more. By setting the viscosity of the liquid medium to the above lower limit or more, the effect of the present embodiment, that is, the oil-containing capsule is easily maintained in a dispersed state for a long period of time, is more effectively exhibited.
The viscosity of the liquid medium is preferably 36000mpa·s or less, more preferably 33000mpa·s or less, and particularly preferably 30000mpa·s or less. In particular, in the case where the capsule-containing liquid composition of the present embodiment is formed into a liquid composition contained in a container, if the viscosity of the liquid medium is equal to or lower than the upper limit value, the capsule-containing liquid composition can be easily taken out of the container during use.
pH
The liquid composition containing capsules of the present embodiment preferably has a pH of 5.0 to 7.0, more preferably 5.5 to 6.8. By setting the pH of the liquid medium within this range, the effect of the present embodiment, that is, the oil-containing capsules are kept in a dispersed state for a long period of time, is easily exhibited. In addition, the appearance (particularly, transparency) of the liquid composition containing capsules can be easily maintained.
Method of manufacture
The method of producing the capsule-containing liquid composition of the present embodiment is not particularly limited as long as it is a combination of the above components. For example, the components other than the oil-containing capsules (E) are mixed with water and dissolved by stirring, thereby preparing a liquid medium. The oil-containing capsule (E) is added to the liquid medium obtained, and the mixture is stirred slowly to prevent the capsule from being destroyed, thereby obtaining a capsule-containing liquid composition.
Use of the same
In addition to shampoo applications, the capsule-containing liquid composition of the present embodiment can be used for skin cleansing applications, fiber cleansing applications, and the like. Among them, the shampoo application is a particularly suitable application of the capsule-containing liquid composition of the present embodiment.
The above capsule-containing liquid composition forms a composition in which the oil-containing capsules can be kept in a dispersed state in a liquid medium for a long period of time.
The capsule-containing liquid composition of the present embodiment is usually provided after being contained in a container. As a particularly suitable embodiment of the capsule liquid composition, the following shampoo in a container is mentioned.
Shampoo in container
The packaged shampoo according to an embodiment of the present invention is a packaged shampoo for shampoo applications, wherein the capsule-containing liquid composition according to the above embodiment is contained in a container having at least a containing portion.
The container used in the present embodiment may be provided with at least a container portion capable of containing the liquid composition containing capsules. However, the container preferably includes a discharge portion capable of discharging the capsule-containing liquid composition stored in the storage portion. Examples of such a container include: dispenser containers, tubular containers, squeeze containers, etc. Among these, the dispenser container is a particularly preferred solution.
However, when the conventional liquid composition is made to have such a low viscosity, it is difficult to keep the oil-containing capsules in a dispersed state for a long period of time. In contrast, the capsule liquid composition according to the above-described embodiment can maintain the oil-containing capsules in a dispersed state for a long period of time even at a low viscosity that can be obtained by using the dispenser container, and therefore, the dispenser container can be used appropriately.
In addition, as the capsule liquid composition according to the above-described embodiment, the oil-containing capsules can be kept in a dispersed state for a long period of time, and the appearance (particularly, transparency) of the capsule liquid composition can be maintained for a long period of time. From the viewpoint of easily obtaining these product effects, the packaged shampoo according to the present embodiment preferably makes the internal capsule-containing liquid composition visible. Specifically, at least a part of the housing portion of the container is preferably made of a transparent material that allows the housed capsule-containing liquid composition to be seen.
The embodiments described above are described for the convenience of understanding the present invention, and are not intended to limit the present invention. Therefore, the elements disclosed in the above embodiments are intended to include all technical modifications and equivalents which fall within the technical scope of the present invention.
Description of the numerical ranges
In the present specification, when it is referred to as "X or higher" (X is an arbitrary number) or "Y or lower" (Y is an arbitrary number), unless otherwise specified, the meaning of "preferably greater than X" or "preferably lower than Y" is also included.
In the present specification, when the term "X to Y" (X, Y is an arbitrary number), unless otherwise specified, "X or more and Y or less" is represented, and the term "preferably greater than X" or "preferably less than Y" is also included.
Examples
The present invention will be described in more detail below by showing production examples, test examples, and the like, but the present invention is not limited to the following production examples, test examples, and the like.
Production example 1 production of liquid composition containing capsules-1
The components other than the oil-containing capsules are mixed with water and stirred to dissolve the components, thereby preparing a liquid medium. To the obtained liquid medium, oil-containing capsules were added and stirred slowly to obtain capsule-containing liquid compositions (samples 1 to 15). As the compounding ingredients, the following were used. The blending amounts (% by mass) shown in table 1 are blending amounts in the obtained capsule-containing liquid compositions.
In samples 1 to 14, a capsule liquid composition was obtained in which the oil-containing capsules were uniformly dispersed in the liquid medium, but in sample 15 in which the mixing amount of the oil-containing capsules was large, a part of the oil-containing capsules was destroyed during stirring, and a uniformly dispersed state was not formed.
< test example 1> evaluation of flowability
Each of the capsule-containing liquid compositions of samples 1 to 15 was filled in a pump dispenser, and the pump was pressed a predetermined number of times to discharge about 5 to 10mL of the capsule-containing liquid composition. The force required for pressing the pump section was confirmed and evaluated according to the following criteria. The results are shown in Table 1.
O: the force required for pressing the pump portion is greater than or equal to that of sample 3 (good fluidity)
X: the force required to press the pump section is significantly greater than that of sample 3 (poor flowability)
< test example 2> evaluation of dispersibility of capsules
Immediately after the preparation of each of the capsule liquid compositions of samples 1 to 14, the oil-containing capsules were uniformly dispersed in a liquid medium, and the capsule liquid compositions were filled with 25mL portions into transparent vials having a volume of 30mL, and stored at 40 ℃ and 75% rh for 3 months. Then, the dispersion state of the capsules in the liquid medium was visually observed for each capsule-containing liquid composition, and evaluated according to the following criteria. The results are shown in Table 1.
O: the capsules are uniformly dispersed in a liquid medium.
X: the capsule floats to the upper part of the liquid medium.
-: after the preparation, the oil-containing capsules were not uniformly dispersed in the liquid medium immediately (sample 15)
Evaluation of appearance of test example 3
Immediately after the preparation of each of the capsule liquid compositions of samples 1 to 14, the oil-containing capsules were uniformly dispersed in a liquid medium, and the capsule liquid compositions were filled with 25mL of each in a transparent vial having a volume of 30mL, and stored at room temperature (15 to 28 ℃) for 3 months. Then, the appearance of the liquid medium in the capsule-containing liquid composition was visually observed, and evaluated according to the following criteria. The results are shown in Table 1.
O: no precipitation of the components and the like are generated, and the liquid medium is kept in a colorless transparent state.
Delta: the liquid medium is blue in color but the other side is visible through the vial and remains generally transparent.
X: the precipitation of the component components or the like causes cloudiness or sediment precipitation in the liquid medium
-: immediately after manufacture, the destroyed oily capsules caused cloudiness in the liquid medium (sample 15)
< test example 4> evaluation of feel in use
Panelists washed hair with each of the capsule-containing liquid compositions of samples 1 to 15, and evaluated for three items of foam amount, foam retention, and hair feel (whether or not hair was roughened after washing), according to the following criteria. The results are shown in Table 1.
And (3) the following materials: for wet hair, the foam is increased within 5 seconds and after 1 minute. The finger after washing has very good dredging property.
O: for the wet hair, the foam was sufficiently foamed within 5 seconds and maintained after 1 minute. The finger after washing has very good dredging property.
Delta: for wet hair, the foam is kept for 1 minute after foaming within 5 seconds. The finger after flushing has good dredging property.
X: it can be used for wet hair, with weak foaming and gradually reduced foaming time. After rinsing, the hair is rough.
< test example 5> measurement of viscosity and pH
The viscosity and pH were measured for the liquid medium before the addition of the oil-containing capsules to sample 3. The viscosity was measured using a type B viscometer (product name "BROOKFIELD viscometer", manufactured by BROOKFIELD Co.) under conditions of LV-4, 12rpm and 25 ℃. The pH was measured using a pH meter (product name "PHMeter F-52", manufactured by horiba Co., ltd.). The viscosity of the liquid medium of sample 3 was 28000 mPas and the pH was 6.2.
TABLE 1
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1 (polyquaternium-10): the product name "Sensmer 10M Polymer," manufactured by Lubrizol Co., ltd
2 (acrylate copolymer): the product name "ACULYN 33A Rheology Modifer" manufactured by Dow chemical Co., ltd
Onium 3 (polyquaternium-50): the product name "PLAS CIZE L-402W," manufactured by the company of the industry of Cooperation chemical Co., ltd
Onium 4 (oil-containing capsule): the product name "A-CAP yellow_Kyowa_60," manufactured by ACTIVON Co., ltd., korea, specific gravity (20 ℃ C.) was 0.85 to 0.95g/cm3
As shown in table 1, samples meeting the requirements of the present invention also remained in a dispersed state of the capsules after long-term storage. The sample containing the nonionic surfactant and the polyol also maintains its appearance (transparency) even after long-term storage, and is excellent in use feeling, and is suitable as a shampoo composition (shampoo).
Production example 2 production of liquid composition containing capsules-2
The capsule liquid compositions (samples 16 to 29) in which the oil-containing capsules were uniformly dispersed in the liquid medium were obtained in the same manner as in production example 1, except that the types and the amounts of the components to be blended were changed as shown in table 2.
For each of the capsule-containing liquid compositions of samples 16 to 29, the dispersibility, feel and appearance of capsules were evaluated in the same manner as in test examples 1 to 3. The results are shown in Table 2.
In addition, the viscosity and pH of the liquid medium before the oil-containing capsule was added to the sample 18 were measured in the same manner as in test example 4, and the viscosity of the liquid medium of the sample 18 was 15,000mpa·s, and the pH was 6.2.
TABLE 2
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1 (polyquaternium-10): the product name "Sensmer 10M Polymer," manufactured by Lubrizol Co., ltd
2 (acrylate copolymer): the product name "ACULYN 33A Rheology Modifer" manufactured by Dow chemical Co., ltd
Onium 3 (polyquaternium-50): the product name "PLAS CIZE L-402W," manufactured by the company of the industry of Cooperation chemical Co., ltd
Onium 4 (oil-containing capsule): the product name "A-CAP yellow_Kyowa_60", manufactured by ACTIVON Co., ltd., specific gravity (20 ℃ C.) is 0.85 to 0.95g/cm 3
As shown in table 2, among samples 16 to 29, the samples satisfying the requirements of the present invention were also excellent in capsule dispersibility. The samples containing the nonionic surfactant and the polyol are excellent in appearance (transparency) after long-term storage and also excellent in feel in use, and these are also suitable as shampoo compositions (shampoos).

Claims (11)

1. A capsule-containing liquid composition comprising (E) oil-containing capsules dispersed in a liquid medium containing at least the following components (A) to (D),
the capsule-containing liquid composition comprises the following components in percentage by weight:
(A) 5 to 20 mass% of anionic surfactant;
(B) 0.5 to 10 mass percent of amphoteric surfactant;
(C) 0.05 to 2 mass% of a cationized polymer;
(D) 0.5 to 6 mass percent of thickener; and
(E) 0.01 to 2 mass percent of oil-containing capsule.
2. The capsule liquid composition according to claim 1, wherein an acrylate copolymer is contained as the thickener (D).
3. The capsule liquid composition according to claim 1, wherein a cationized cellulose is contained as the cationized polymer (C).
4. The liquid composition according to claim 1, wherein the liquid medium contains (F) a nonionic surfactant,
the content of the capsule-containing liquid composition is 1-20 mass% of (F) nonionic surfactant.
5. The liquid composition according to claim 1, wherein the liquid medium contains (G) a polyol,
the content of the (G) polyol in the capsule-containing liquid composition is 0.05-8 mass%.
6. The capsule liquid composition according to claim 1, wherein the specific gravity of the oil-containing capsule (E) is 0.80 to 0.98g/cm 3
7. The capsule liquid composition according to claim 1, wherein the viscosity of the liquid medium is 8000 to 36000 mPa-s.
8. The capsule liquid composition according to any one of claims 1 to 7, wherein the capsule liquid composition is for shampoo use.
9. A packaged shampoo comprising the capsule-containing liquid composition according to claim 8, which is contained in a container having at least a containing portion.
10. The packaged shampoo of claim 9 wherein at least a portion of the receptacle is comprised of a transparent material that visibly accommodates the capsule-containing liquid composition.
11. The packaged shampoo according to claim 9, wherein the container comprises a discharge portion capable of discharging the contained capsule-containing liquid composition.
CN202311037984.6A 2022-08-18 2023-08-17 Liquid composition containing capsules and shampoo packed in container Pending CN117582384A (en)

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JP2022130647A JP2024027668A (en) 2022-08-18 2022-08-18 Capsule-containing liquid composition and container hair cleanser

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