JP2009292969A - Liquid detergent composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid detergent composition causing no clogging in a container, stably producing creamy foam, exhibiting excellent conditioning effect after cleansing, and allowing foaming excellently even at a low temperature when the liquid detergent composition is contained in a non-gas type foam dispensing container, and in use, discharged in the foam form from the container. <P>SOLUTION: The liquid detergent composition is stored in the non-gas type foam dispensing container having a porous membrane, and in use, discharged in the foam form from the container via the porous membrane. The liquid detergent composition contains (a) 1-30 mass% of a specific acyl taurine salt (for example, N-decanoyl N-methyl taurine salt and the like), (b) 0.1-15 mass% of an amphoteric surfactant (for example, coconut oil fatty acid amidopropyl betaine, 2-coconut oil fatty acid alkyl-N-carboxyethyl-N-hydroxyethyl imidazolinium betaine, and the like), and (c) 0.01-3 mass% of cationized starch. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a liquid detergent composition that is housed in a non-gas type foam discharge container having a porous film and is discharged in a foam form from the container through the porous film during use. More particularly, the present invention relates to a liquid detergent composition that is free of clogging, provides a creamy and stable foam, is excellent in foam formation even at low temperatures such as in winter, and has excellent conditioning effects after washing.

  Various liquid detergent compositions that are contained in a non-gas type foam discharge container and are discharged from the container in the form of foam during use have been proposed (see, for example, Patent Documents 1 to 6). In the liquid detergent composition contained in such a non-gas type foam discharge container, improvement in foam quality (foam creaminess, foam fineness, etc.), prevention of clogging when discharging into foam, etc. I am trying. In particular, in recent years, demand for consumer usability has been increasing compared to the past, and further improvements in foam quality, improved usability after washing, prevention of clogging, etc. There is a need for improved technology. Conventionally, there has been a problem that foam formation is reduced at low temperatures such as in winter, but a solution to this problem is also desired.

JP-A-5-132700 JP-A-7-252132 JP-A-8-131809 JP 2005-187359 A JP 2005-187411 A Japanese Patent No. 3815538

  The present invention has been made in view of the above circumstances, and is contained in a non-gas type foam discharge container, and in a liquid detergent composition discharged in a foam form from the container at the time of use, there is no clogging, and it is creamy and stable. An object of the present invention is to provide a liquid detergent composition in which foam is obtained, excellent in conditioning effect after washing, and can maintain good foam formation even at low temperatures such as in winter.

  As a result of diligent studies to achieve the above object, the present inventors have come to focus on a specific cationic polymer compound existing in a dissolved state in the composition, and the cationic polymer compound has a specific anionic interface. When combined with a liquid detergent composition containing an active agent and an amphoteric surfactant, these act synergistically to fill the foam discharge container and use it as a foam discharge form. It is found that a creamy and stable foam can be obtained without clogging, and that an excellent conditioning effect can be obtained, and that foam formation is excellent even at low temperatures such as in the winter season. It came.

  That is, the present invention is a liquid detergent composition that is housed in a non-gas type foam discharge container having a porous film and is discharged in a foam form from the container through the porous film at the time of use. Formula (I):

[In the formula (I), R ₁ CO— represents a saturated or unsaturated fatty acid residue (acyl group) having 6 to 10 carbon atoms; R ₂ is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms; M ₁ represents a hydrogen atom, an alkali metal, an alkaline earth metal, ammonium, or an organic amine; n represents an integer of 1 to 3. ]
1 to 30% by mass of a short-chain acyl taurine salt represented by formula (b) 0.1 to 15% by mass of an amphoteric surfactant, and (c) 0.01 to 2% by mass of cationized starch. A liquid detergent composition is provided.

  In the present invention, the component (b) is coconut oil fatty acid amidopropyl betaine, coconut oil fatty acid aminomethylsulfopropylbetaine, 2-coconut oil fatty acid alkyl-N-carboxyethyl-N-hydroxyethylimidazolinium betaine, laurylamino. One or two selected from methyl-bis- (2-hydroxyethyl) -sulfopropylbetaine and N-lauroyl-N- (2-hydroxyethyl) -N ′, N′-bis (carboxyethyl) ethylenediamine Provided is a liquid detergent composition as described above that is more than a species.

  In addition, the present invention provides the liquid detergent composition, wherein the component (b) is 2-coconut oil fatty acid alkyl-N-carboxyethyl-N-hydroxyethylimidazolinium betaine and / or coconut oil fatty acid amidopropyl betaine. I will provide a.

  The present invention also provides the above liquid cleaning composition, wherein the non-gas type foam discharge container is a squeeze foamer type container or a pump foamer type container.

  According to the present invention, a liquid detergent composition is contained in a non-gas type foam discharge container having a porous film, and is discharged in a foam form from the container through the porous film at the time of use, and the container is also clogged. There is provided a liquid detergent composition that provides a creamy and stable foam, is excellent in the conditioning effect after washing, and is excellent in foam formation even at low temperatures.

  Hereinafter, the present invention will be described in detail.

  The component (a) used in the present invention is a short chain length acyl taurine salt represented by the following formula (I).

In the above formula (I), R ₁ CO represents a saturated or unsaturated fatty acid residue (acyl group) having 6 to 10 carbon atoms. The acyl group may be linear or branched. Specifically, the acyl group may be a saturated acyl group such as a hexanoyl group, octanoyl group or decanoyl group, an unsaturated acyl group such as a hexenoyl group, an oxenoyl group or a decenoyl group. Groups. When the number of carbon atoms in the acyl group is 5 or less, irritation to hair and skin becomes strong, and there is a feeling of foam and foaming, and a squeaky feeling when rinsing is performed. On the other hand, when the number of carbon atoms is 11 or more, the viscosity increases at a low temperature such as in winter, and the feeling of bubbles at the time of discharge deteriorates.

R ₂ represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms. In the present invention, a methyl group is preferred.

  n shows the integer of 1-3.

M ₁ represents a hydrogen atom, an alkali metal (eg, sodium, potassium, lithium, etc.), an alkaline earth metal (eg, calcium, magnesium, etc.), ammonium or an organic amine (eg, triethanolamine, etc.).

  Specific examples of the component (a) include, for example, N-hexanoyl-N-methyltaurine sodium, N-octanoyl-N-methyltaurine sodium, N-decanoyl-N-methyltaurine sodium, N-hexenoyl-N-methyltaurine. Sodium, N-octenoyl-N-methyltaurine sodium, N-decenoyl-N-methyltaurine sodium, etc., and sodium salts of these exemplary compounds are converted to other alkali metals (potassium, etc.), alkaline earth metals, ammonium, organic The thing replaced with salts, such as amines, etc. are mentioned. However, it is not limited to these examples. (A) A component can use 1 type (s) or 2 or more types.

  (A) The compounding quantity of a component is 1-30 mass% in the liquid detergent composition of this invention, Preferably it is 5-20 mass%. When the blending amount is less than 1% by mass, foaming at the time of shampooing or the like cannot be obtained, and the cleaning power is insufficient. On the other hand, if it exceeds 30% by mass, the system will thicken, the creaminess of the foam at the time of ejection will not be obtained, and the stability will be inferior, and the squeezing at the time of rinsing will become large and the conditioning will not be obtained.

  The amphoteric surfactant as the component (b) used in the present invention is not particularly limited as long as it can be generally used in cosmetics. For example, compounds represented by the following formulas (II) to (V) Can be mentioned.

[In the formula (II), R ₃ represents a linear or branched saturated or unsaturated hydrocarbon group having 7 to 21 carbon atoms; R ₄ and R ₅ each independently represents 1 to 1 carbon atoms; 4 represents an alkyl group or a hydroxyalkyl group; Q represents an alkylene group having 1 to 3 carbon atoms, or a hydroxyalkylene group having 2 to 3 carbon atoms; Z ⁻ represents —COO 2 ^— or —SO ₃ ^— . It represents (wherein, Z ^- is -COO ^- when it is, Q is an alkylene group); k represents an integer of 1 to 5; m represents an integer of 0 or 1. ]

[In the formula (III), R ₆ represents an alkyl or alkenyl group having 9 to 17 carbon atoms; R ₇ represents —CH ₂ COOM ₂ or —CH ₂ CH ₂ COOM ₂ ; R ₈ represents a hydrogen atom, It represents a -CH ₂ COOM ₂ or -CH ₂ CH ₂ COOM _2. Here, M ₂ is a cation that forms a water-soluble salt. ]

Wherein (IV), R ₉ is an alkyl group having 7 to 19 carbon atoms, an alkenyl group or an alkylphenyl group substituted with an alkyl group having a carbon number of 7~15,; R _10, R ₁₁ are each Independently, a hydrogen atom, —OH, —CH ₂ COOM ₃ , —CH ₂ CH ₂ COOM ₃ are represented. However, R ₁₀ and R ₁₁ are not simultaneously a hydrogen atom or —OH. Here, M ₃ represents a hydrogen atom, sodium, potassium, alkanolamine, or alkaline earth metal. ]

[In the formula (V), R ₁₂ represents an alkyl group or alkenyl group having 5 to 19 carbon atoms; A represents R ₁₃ OM ₄ or R ₁₃ OR ₁₄ COOM ₄ (wherein R ₁₃ represents the number of carbon atoms) Represents an alkyl group having 1 to 4; R ₁₄ represents an alkylene group having 1 to 4 carbon atoms or an alkylene group substituted with an OH group; and two M _{4 s} independently represent a hydrogen atom, an alkali metal or an alkanolamine. B represents R ₁₄ COOM ₄ or CH ₂ COHCH ₂ SO ₃ M ₄ (where R ₁₄ and M ₄ are as defined above); G represents any anion. . ]

  Specific examples of the component (b) include, for example, N-decyl betaine, cetyl betaine, stearyl betaine, coconut oil alkyl betaine, coconut oil fatty acid amide propyl betaine, lauric acid amide propyl betaine, lauric acid amide methyl betaine, myristic acid amide. Methyl betaine, amidomethyl betaine palmitate, amidomethyl betaine stearate, coconut oil fatty acid dimethylsulfopropyl betaine, stearyl dimethylsulfopropyl betaine, coconut oil fatty acid aminomethylsulfopropyl betaine, stearylaminomethyldimethylsulfopropyl betaine, myristylaminomethyldimethyl Sulfopropyl betaine, laurylaminomethyl-bis- (2-hydroxyethyl) -sulfopropyl betaine, N-lauroyl-N- (2- Droxyethyl) -N-carboxymethylethylenediamine, N-lauroyl-N- (2-hydroxyethyl) -N ′, N′-bis (carboxyethyl) ethylenediamine, N-lauroyl-N′-carboxymethyl-N′-carboxymethoxy Ethylethylenediamine, N-lauroyl-N'-carboxyethyl-N '-(2-hydroxyethyl) -ethylenediamine, N-lauroyl-N'-carboxyethoxyethylethylenediamine, N-lauroyl-N'-carboxyethyl-N'- Carboxyethoxyethylethylenediamine, 2-coconut oil fatty acid alkyl-N-carboxyethyl-N-hydroxyethyl imidazolinium betaine, 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine, etc. It is below. However, it is not limited to these examples. Among them, coconut oil fatty acid amidopropyl betaine, coconut oil fatty acid aminomethylsulfopropylbetaine, 2-coconut oil fatty acid alkyl-N-carboxyethyl-N-hydroxyethylimidazolinium betaine, laurylaminomethyl-bis- (2-hydroxyethyl) -Sulfopropylbetaine, N-lauroyl-N- (2-hydroxyethyl) -N ', N'-bis (carboxyethyl) ethylenediamine, etc. are preferably used, especially coconut oil fatty acid amidopropylbetaine, 2-coconut oil Fatty acid alkyl-N-carboxyethyl-N-hydroxyethyl imidazolinium betaine is most preferably used. (B) A component can use 1 type (s) or 2 or more types.

  (B) The compounding quantity of a component is 0.1-15 mass% in the liquid detergent composition of this invention, Preferably it is 1-10 mass%. When the blending amount is less than 0.1% by mass, it is difficult to obtain a good conditioning effect. On the other hand, when the blending amount exceeds 15% by mass, the system thickens and the feel of bubbles during ejection becomes worse.

  The cationic starch as the component (c) used in the present invention is preferably a cationic polymer represented by the following formula (VI), and the polymer contains the component (a) and the component (b) according to the present invention. It exists in a good dissolved state in the composition. Thereby, the improvement of effects such as creaminess and stability of the foam when the foam is discharged is achieved.

  In the formula (VI), each symbol represents the following meaning.

X ⁻ represents an anion derived from an inorganic acid or an organic acid.

  a and b are a + b = 1, a is about 0.75 and b is about 0.25, but the component (c) preferably has an average molecular weight of 30,000 to 1,000,000 as shown below. , B is appropriately adjusted so that the component (c) falls within such a molecular weight range.

The component (c) preferably has an average molecular weight of 30,000 to 1,000,000, more preferably 100,000 to 500,000.

In the above formulas, X ^- is Cl ^- and most preferably in the range of, in this case, (c) component is chloride Hidorokishipuropirutorimoniumu starch cosmetics INCI name, starch and quaternary ammonium salt consisting of chloride glycidyl trimethylammonium It is. Hydroxypropyltrimonium chloride starch is commercially available, for example, as “Sensormer CI-50” (manufactured by Nalco Co., Ltd., cationized potato starch), and these commercially available products can be suitably used.

  In the present invention, when other cationic polymer (for example, a cationized cellulose derivative, a cationized guar gum derivative, a dimethyldiallylammonium derivative, etc.) is used instead of the component (c), the creaminess and stability of the foam at the time of foam discharge are improved. The effect of the present invention cannot be obtained.

  (C) The compounding quantity of a component is 0.01-2 mass% in the liquid detergent composition of this invention, Preferably it is 0.1-1 mass%. If the blending amount is less than 0.01% by mass, the squeeze at the time of rinsing becomes large and the conditioning properties deteriorate. On the other hand, when the amount exceeds 2% by mass, the system thickens, the foam feel during discharge is deteriorated, and the container is clogged.

  The liquid detergent composition of the present invention having the above-described structure can obtain creamy foam because the viscosity measured at a temperature of 0 to 50 ° C. with a Brookfield rotary viscometer is as low as about 30 mPa · s or less. Can do. If the viscosity is too high, the foam becomes hard and rough and lacks creaminess, but the liquid cleaning composition of the present invention does not cause such problems.

  The liquid detergent composition of the present invention is suitably used as a hair and skin detergent for hair shampoos, body soaps, hand soaps, facial cleansers, and the like. Other conventional nonionic surfactants, cationic surfactants, cationic polymer compounds, pearlizing agents, viscosity modifiers, hydrotropes, fragrances, dyes, and other additives A thing can also be mix | blended combining arbitrarily in the range which does not impair the effect of this invention.

  The liquid detergent composition of the present invention can be prepared according to a usual method using the components described above.

  The liquid detergent composition of the present invention is accommodated in a non-gas type foam discharge container having a porous film. The non-gas type foam discharge container used in the present invention is of any known type as long as a certain amount of liquid detergent composition is mixed with a certain amount of air and discharged from the container at the time of use as a foam state. But you can. Specifically, for example, a squeeze foamer that is used by pressing the torso of a soft container with fingers, a pump former that is used by pressing the head of a cap equipped with a pump mechanism with fingers, and the like. . In use, the liquid detergent composition in the container is discharged from the container discharge port as a foam by passing a mixture obtained by mixing the liquid detergent composition with air through the porous membrane (one to a plurality of sheets). It is like that. Examples of the porous film include a sponge, a sintered body, and a net. A net having a thin wall is preferable from the viewpoint of usability. The net is preferably 30 to 300 mesh, more preferably 50 to 250 mesh. If it is less than 30 mesh, the pores are too large and foaming is poor, whereas if it exceeds 300 mesh, clogging of the liquid detergent composition tends to occur, which is not preferable. Further, examples of preferable materials for such a mesh include nylon and polyester, but it is needless to say that the material is not limited to these examples.

  The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto. Unless otherwise specified, the blending amount is expressed in mass% with respect to the system in which the component is blended. Cosmetic raw materials are sold by dilution with water because they are easy to use, but all the compounding amounts shown here are pure.

  Prior to the examples, test methods and evaluation criteria for each evaluation used in this example will be described.

[Creaminess of foam at room temperature (at the time of discharge and after 1 minute from the discharge)]
Each sample is filled in a squeeze foamer-type container (having a 150-mesh porous membrane inside the discharge port), and 10 panelists perform normal squeeze operations at room temperature to discharge the contents and pick them up in their hands. The creaminess of the foam was sensory-evaluated at room temperature according to the following evaluation criteria by the appearance and feel of the foam at the time of foam discharge and after 1 minute from the foam discharge.
(Evaluation criteria)
○: foam is creamy and good △: foam is slightly rough, slightly hard or too soft ×: foam is rough, hard or too soft

[Creaminess of foam at low temperature (at the time of discharge and after 1 minute from discharge)]
Each sample is filled in a squeeze foamer-type container (having a 150-mesh porous film inside the discharge port), and 10 panelists perform normal squeeze operations at 0 ° C to discharge the contents. The foam creaminess was sensory-evaluated at 0 ° C. according to the following evaluation criteria based on the appearance and feel of the foam at the time of foam discharge and after 1 minute from the foam discharge.
(Evaluation criteria)
○: foam is creamy and good △: foam is slightly rough, slightly hard or too soft ×: foam is rough, hard or too soft

[Conditioning (no squeaking)]
Ten panelists used each sample for shampooing, and sensory-evaluated the lack of squeaky sensation when rinsing.
(Evaluation criteria)
○: Not very fragile △: Quite squeezed ×: Scratch is severe, finger passage is very bad

[Bubbling]
Ten panelists used each sample for shampooing, and evaluated foaming according to the following evaluation criteria.
(Evaluation criteria)
○: foams well △: normal ×: foaming is bad

[Examples 1-6, Comparative Examples 1-13]
Hair shampoos (liquid detergent compositions) shown in Tables 1 and 2 below were prepared according to a conventional method. These were used as samples and evaluated by the above evaluation method, and the score with the highest evaluation was used as the evaluation result. The results are shown in Tables 1-2. In Tables 1 and 2, “SENSOMER CI-50” (manufactured by Nalco Co., Ltd., cationized potato starch) was used as “cationized starch ^(*) ”.

[Example 7]
A pump former type container (having a porous film inside the discharge port) is used by filling the following sample (liquid detergent composition). According to the seventh embodiment, a creamy and stable foam can be obtained without clogging the container.
(sample)
(Mixed component) (mass%)
N-hexanoyl-N-methyltaurine sodium (C = 6) 20
Palm oil fatty acid amidopropyl betaine 10
Cationized starch (cationized potato starch) 1
Citric acid 0.01
Fragrance 0.001
Ion exchange water

Claims (4)

A liquid cleaning composition contained in a non-gas type foam discharge container having a porous film and discharged in a foam form from the container through the porous film during use, wherein (a) the following formula (I):

[In the formula (I), R ₁ CO— represents a saturated or unsaturated fatty acid residue (acyl group) having 6 to 10 carbon atoms; R ₂ is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms; M ₁ represents a hydrogen atom, an alkali metal, an alkaline earth metal, ammonium, or an organic amine; n represents an integer of 1 to 3. ]
1 to 30% by mass of a short-chain acyl taurine salt represented by formula (b) 0.1 to 15% by mass of an amphoteric surfactant, and (c) 0.01 to 2% by mass of cationized starch. A liquid detergent composition characterized by that.   The component (b) is coconut oil fatty acid amidopropyl betaine, coconut oil fatty acid aminomethylsulfopropylbetaine, 2-coconut oil fatty acid alkyl-N-carboxyethyl-N-hydroxyethylimidazolinium betaine, laurylaminomethyl-bis- ( 2-hydroxyethyl) -sulfopropylbetaine, and N-lauroyl-N- (2-hydroxyethyl) -N ′, N′-bis (carboxyethyl) ethylenediamine, which is one or more. The liquid detergent composition according to claim 1.   The liquid detergent composition according to claim 1 or 2, wherein the component (b) is 2-coconut oil fatty acid alkyl-N-carboxyethyl-N-hydroxyethylimidazolinium betaine and / or coconut oil fatty acid amidopropyl betaine. object.   The liquid detergent composition according to any one of claims 1 to 3, wherein the non-gas type foam discharge container is a squeeze foamer type container or a pump foamer type container.