JP6113461B2 - Shampoo composition - Google Patents

Description

  The present invention relates to a shampoo composition for cleaning hair.

  2. Description of the Related Art Conventionally, hair washing compositions containing layered clay minerals are known. In Patent Document 1, a shampoo composition containing a carboxylic acid surfactant, a cationic surfactant, and a higher alcohol and not containing an amphoteric polymer and a cationic polymer, and further containing a water-swellable clay mineral What to do is disclosed. Patent Document 1 discloses that the separation caused in the shampoo composition is suppressed by containing the water-swellable clay mineral. Patent Document 2 discloses a hair cleansing composition containing an anionic surfactant, a water-swellable clay mineral, and a silicone elastomer. It is disclosed in Patent Document 2 that the touch such as smoothness of hair is improved by containing a water-swellable clay mineral and a silicone elastomer in this composition.

JP 2005-187342 A JP 2012-148994 A

  When layered clay minerals such as water-swellable clay minerals were included in the shampoo composition, the clay minerals sometimes settled easily. This sedimentation represents the poor dispersibility of the layered clay mineral in the composition, and it is desired to improve the dispersibility of the layered clay mineral.

  In view of the above circumstances, an object of the present invention is to provide a shampoo composition having high dispersibility of a layered clay mineral.

  As a result of intensive studies by the present inventors, a shampoo composition containing a general anionic surfactant as a detergency component, a lamellar clay mineral, dilauroyl glutamic acid lysine salt, dilauroyl glutamic acid lysine salt, or xanthan gum Was added, the dispersibility of the layered clay mineral was improved, and the present invention was completed.

  That is, the shampoo composition according to the present invention is characterized in that a layered clay mineral, dilauroyl glutamate lysine, dilauroyl glutamate lysine salt, or xanthan gum and an anionic surfactant are blended. When lysine dilauroyl glutamate or a salt thereof is blended, it is excellent in fingering when washing from hair.

  The shampoo composition according to the present invention may contain a cationic surfactant and a higher alcohol. These blends lead to an increase in viscosity that enhances the dispersion stability of the layered clay mineral.

The shampoo composition according to the present invention preferably contains a fatty acid amide represented by the following general formula (I) and / or an alkyl glycol hydroxypropyl ether represented by the following general formula (II), A blend of fatty acid amides is preferred. If it is this combination, it will be excellent in fingering when washing away.
[In the above general formula (I), R ¹ —CO represents a fatty acid residue having 12 to 24 carbon atoms, R ² represents an alkanol group having 2 to 4 carbon atoms, and R ³ represents 2 to 4 carbon atoms. The following alkanol groups or alkyl groups having 1 to 3 carbon atoms are represented. ]
[In the general formula (II), R ⁴ represents an alkyl group having 10 to 14 carbon atoms. ]

  According to the shampoo composition of the present invention, since dilauroyl glutamate lysine, dilauroyl glutamate lysine salt, or xanthan gum is blended, good dispersibility of the layered clay mineral is realized.

Based on an embodiment of the present invention, the present invention will be described below.
A shampoo composition according to the present embodiment (hereinafter, “shampoo composition” may be referred to as “shampoo”) includes a layered clay mineral, dilauroyl glutamate lysine, dilauroyl glutamate lysine salt, or xanthan gum (hereinafter referred to as “shampoo”). "Dilauroyl glutamic acid lysine, dilauroyl glutamic acid lysine salt, or xanthan gum" may be referred to as "dilauroyl glutamic acid lysine and the like") and an anionic surfactant are mixed with water (formulation of water The amount is, for example, 60% by mass or more). Moreover, you may mix | blend a well-known raw material for shampoos with the shampoo of this embodiment as an arbitrary raw material as needed.

(Layered clay mineral)
The layered clay mineral blended in the shampoo of this embodiment has a property of taking up water molecules. The layered clay mineral removes dirt and waste on the scalp.

  The shampoo of this embodiment may contain one or more selected from known layered clay minerals such as kaolin, smectite, and bentonite. As a compounding quantity in the layered clay mineral of this embodiment, it is 0.1 mass% or more and 2.0 mass% or less, for example, 0.3 mass% or more and 1.0 mass% or less may be sufficient.

(Dilauroyl glutamate lysine, etc.)
In the shampoo of this embodiment, dilauroyl glutamic acid lysine, dilauroyl glutamic acid lysine salt (for example, sodium salt of dilauroyl glutamic acid lysine) or xanthan gum is blended in order to improve the dispersibility of the layered clay mineral. If dilauroyl glutamic acid lysine or dilauroyl glutamic acid lysine salt is blended, the shampoo of this embodiment is superior to the finger when washing from the hair, rather than blending xanthan gum. Moreover, if xanthan gum is mix | blended, the dispersibility of a layered clay mineral will improve rather than mix | blending dilauroyl glutamate ricin or dilauroyl glutamate lysine salt.

  The shampoo of this embodiment may contain one or more selected from dilauroyl glutamic acid lysine, dilauroyl glutamic acid lysine salt, and xanthan gum. As a compounding quantity in the shampoo of this embodiment, it is 0.04% or more and 0.5 or less, for example, 0.06 mass% or more and 0.3 mass% or less may be sufficient.

(Anionic surfactant)
The shampoo of this embodiment may contain a known anionic surfactant as a hair washing component.

  Examples of the anionic surfactant include N-acyl amino acid salts, alkyl ether carboxylates, fatty acid amide ether carboxylates, fatty acid amide ether carboxylic acids, carboxylic acid anionic surfactants such as acyl lactates; Acid salt, α-olefin sulfonate, α-sulfo fatty acid methyl ester salt, acyl isethionate, alkyl glycidyl ether sulfonate, alkyl sulfosuccinate, alkyl sulfoacetate, alkyl benzene sulfonate, alkyl naphthalene sulfonate, Sulfonic acid type anionic surfactants such as N-acylmethyl taurate; sulfuric acid such as alkyl sulfate, alkyl ether sulfate, alkyl aryl ether sulfate, fatty acid alkanolamide sulfate, fatty acid monoglyceride sulfate Anionic surfactants; phosphoric acid anionic surfactants such as alkyl phosphates, polyoxyethylene alkyl ether phosphates, alkylaryl ether phosphates, fatty acid amide ether phosphates;

  The shampoo of this embodiment may contain one or more anionic surfactants. The compounding quantity of the anionic surfactant in the shampoo of this embodiment is not specifically limited, For example, they are 5 mass% or more and 15 mass% or less.

(Optional raw material)
The arbitrary raw material mix | blended with the shampoo of this embodiment is suitably selected from a well-known shampoo raw material. Shampoo raw materials include higher alcohols, cationic surfactants, nonionic surfactants, amphoteric surfactants, polyhydric alcohols, sugars, ester oils, oils and fats, polymer compounds, amino acids, animal and plant extracts, microorganism-derived substances, inorganic compounds, Perfumes, preservatives, sequestering agents, UV absorbers and the like.

  If a cationic surfactant and a higher alcohol are added to the shampoo of this embodiment, it is possible to improve the viscosity, improve the dispersibility of the layered clay mineral accompanying the increase in the viscosity, and improve the feel of the hair.

  When a cationic surfactant is blended in the shampoo of this embodiment, the cationic surfactant includes di-long-chain alkyldimethylammonium salts such as distearyldimethylammonium chloride, dicetyldimethylammonium chloride, dicocoyldimethylammonium chloride; Mono long-chain alkyltrimethylammonium salts such as behenyltrimethylammonium chloride, stearyltrimethylammonium chloride, stearyltrimethylammonium bromide, cetyltrimethylammonium bromide; and long-chain alkoxyalkyltrimethylammonium salts such as stearoxypropyltrimethylammonium chloride. The term “long-chain alkyl” as used herein means a linear or branched alkyl group having 8 or more carbon atoms, and when the carbon number is 16 or more and 22 or less, irritation to the skin is suppressed. From the viewpoint of the feel imparted to hair and hair.

  One or more selected from cationic surfactants may be added to the shampoo of this embodiment. The blending amount of the cationic surfactant in the shampoo of the present embodiment is preferably an amount that can ensure the hair washing function by being significantly less than that of the anionic surfactant, and is, for example, 0.5% by mass or less.

  When a higher alcohol is blended in the shampoo of this embodiment, examples of the higher alcohol include linear saturated alcohols such as cetyl alcohol, stearyl alcohol, aralkyl alcohol, and behenyl alcohol; linear unsaturated alcohols such as oleyl alcohol. Branched branched alcohols such as hexyl decanol, octyl dodecanol, isocetyl alcohol, isostearyl alcohol;

  One or more selected from higher alcohols may be blended in the shampoo of this embodiment. The compounding quantity of the higher alcohol in the shampoo of this embodiment is 1.0 mass% or less, for example.

  When a nonionic surfactant is blended in the shampoo of this embodiment, a predetermined fatty acid amide, a predetermined alkyl glycol hydroxypropyl ether, or a predetermined fatty acid amide and a predetermined alkyl glycol hydroxypropyl ether may be mixed. With this specific nonionic surfactant, a decrease in dispersibility of the layered clay mineral can be suppressed.

The predetermined fatty acid amide is a fatty acid amide represented by the following formula (I). If this fatty acid amide is blended, the shampoo of this embodiment is excellent as a finger when washing away from the hair.
[In the above general formula (I), R ¹ —CO represents a fatty acid residue having 12 to 24 carbon atoms, R ² represents an alkanol group having 2 to 4 carbon atoms, and R ³ represents 2 to 4 carbon atoms. The following alkanol groups or alkyl groups having 1 to 3 carbon atoms are represented. ]

R ¹ —CO in the above general formula (I) is a fatty acid residue such as lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, linoleic acid, coconut oil fatty acid, isostearic acid, isopalmitic acid, etc. Is mentioned. Examples of R ² in the general formula (I) include a hydroxyethyl group, a hydroxypropyl group, and a hydroxyisopropyl group. Examples of R ³ include a hydroxyethyl group, a hydroxypropyl group, a hydroxyisopropyl group, and a methyl group. Group and ethyl group.

  Examples of the fatty acid amide represented by the general formula (I) include lauric acid diethanolamide, myristic acid diethanolamide, stearic acid diethanolamide, coconut oil fatty acid diethanolamide, and coconut oil fatty acid N-methylethanolamide.

  One or more selected from the above fatty acid amides may be added to the shampoo of this embodiment. The compounding quantity of the said fatty acid amide in the shampoo of this embodiment is 1 to 5 mass%, for example.

The predetermined alkyl glycol hydroxypropyl ether is an alkyl glycol hydroxypropyl ether represented by the following general formula (II). When the raw material is blended, the dispersibility of the layered clay mineral is excellent.
[In the general formula (II), R ⁴ represents an alkyl group having 10 to 14 carbon atoms. ]

  Examples of the alkyl glycol hydroxypropyl ether represented by the general formula (II) include lauryl glycol hydroxypropyl ether and myristyl glycol hydroxypropyl ether.

  One or more selected from the above alkyl glycol hydroxypropyl ethers may be blended in the shampoo of this embodiment. The compounding quantity of the said alkylglycol hydroxypropyl ether in the shampoo of this embodiment is 0.1 to 3 mass%, for example.

(viscosity)
Although the viscosity of the shampoo of this embodiment is not specifically limited, For example, it is 5.0 Pa.s or more and 15 Pa.s or less. Here, the viscosity uses a stress-controlled rheometer “Rheo Stress 6000” manufactured by HAAKE, measuring temperature 25 ° C., cone plate sensor diameter 35 mm and tilt angle 2 °, steady flow curve mode, waiting time 1 minute, It is a value measured under the condition of a shear rate of 36 s- ¹ .

(PH)
The pH of the shampoo of this embodiment may be a general shampoo pH, for example 5.0 or more and 7.0 or less.

(Production method)
The shampoo manufacturing method of the present embodiment includes, for example, a method of blending and stirring the layered clay mineral after blending materials other than the layered clay mineral and sufficiently dispersing the raw materials by stirring while heating.

  EXAMPLES Hereinafter, although this invention is explained in full detail based on an Example, this invention is not interpreted limitedly based on description of this Example.

  Water, Moroccan lava clay, dilauroyl glutamic acid sodium lysine, xanthan gum, (acrylates / alkyl acrylate (C10-30)) crosspolymer, behenyltrimethylammonium chloride, cetyl alcohol, coconut oil fatty acid N-methylethanolamide, glycol distearate , Sodium polyoxyethylene lauryl ether sulfate, disodium lauryl polyoxyethylene sulfosuccinate, alkylamidopropyl betaine, cationized polymer, PEG-32, dipropylene glycol, glycerin, isopropanol, citric acid, sodium chloride, and perfume The shampoo of the following Example and comparative example was manufactured by mix | blending with the raw material which carried out.

  The manufactured shampoo was evaluated for dispersibility and fingering during washing. Moreover, the viscosity was measured about the shampoo of Example 2a-2c and 3a-3b. The evaluation criteria for dispersibility and finger washing are as follows.

(Dispersibility (immediately after production))
The shampoo shortly after production was visually observed, and the presence or absence of precipitation of the layered clay mineral was confirmed according to the following criteria.
○: There was no precipitation of layered clay mineral ×: There was precipitation of layered clay mineral

(Dispersibility (after 50 ℃, 1 month))
The produced shampoo was sealed in a glass container and then left in a thermostatic bath at 50 ° C. for 1 month. And the change of the shampoo was confirmed on the following reference | standard by visual observation.
◎: No change was observed ○: Fine spots were observed by visual observation from the bottom of the container ×: The lower part was colored brown by visual observation from the side of the container

(According to fingers when washing off)
Sensory evaluation was performed according to the following criteria for fingering when the manufactured shampoo was washed away from the hair with warm water.
○: Better than standard-: Equivalent to standard ×: Bad than standard

  Tables 1 to 3 below show the raw materials and amounts blended with water for the production of the shampoos of Examples and Comparative Examples, and the dispersibility of the layered clay mineral and the evaluation results according to the instructions at the time of washing.

  In Table 1, it can confirm that the dispersibility result after 50 degreeC and 1 month of Example 1a-1b which mix | blended dilauroyl glutamate ricin sodium or xanthan gum was favorable. Regarding this dispersibility result, the fact that Example 1a was better than Comparative Example 1a was different from the case other than shampoo (see the dispersibility of Composition Nos. 1 and 3 in Table 4 of Reference Examples below). .) Moreover, about the washing-through finger, Example 1a which mix | blended dilauroyl glutamate sodium ricin was a better result than Example 1b which mix | blended xanthan gum.

  In Table 2, it can confirm that Example 2a-2b which mix | blended fatty acid amide or alkylglycol hydroxypropyl ether was excellent in the dispersibility after 50 degreeC and 1 month. Moreover, it can confirm that Example 2a which mix | blended fatty acid amide was excellent in the fingering at the time of washing | cleaning rather than Example 2b which mix | blended alkylglycol hydroxypropyl ether.

(Reference example)
Water and a raw material selected from moroccan lava clay, dilauroyl glutamic acid sodium lysine, xanthan gum, and (acrylates / alkyl acrylate (C10-30)) crosspolymer were blended. 1-4 compositions were prepared.

The dispersibility of the layered clay mineral in each prepared composition was visually observed according to the following criteria.
○: After 1 hour from the preparation, there was no sedimentation of the layered clay mineral. Δ: After 1 hour from the preparation, the layered clay mineral was precipitated. ×: Soon after the preparation, the layered clay mineral. There was precipitation

In Table 4 below, Reference Example Composition No. The raw material mix | blended with water for preparation of 1-4, and the dispersibility of a layered clay mineral are shown.

  In Table 4 above, No. 1 containing dilauroylglutamic acid sodium lysine was used. No. 1 blended with an (acrylates / alkyl acrylate (C10-30)) crosspolymer. Three compositions had higher dispersibility of the layered clay mineral. This dispersibility tendency is completely opposite to that of shampoo (see Example 1a and Comparative Example 1a in Table 1).

Claims (5)

A shampoo composition comprising a layered clay mineral, dilauroyl glutamic acid lysine or a salt thereof, and an anionic surfactant. The shampoo composition according to claim 1, wherein xanthan gum is blended.   The shampoo composition according to claim 1 or 2, wherein a cationic surfactant and a higher alcohol are blended. The shampoo according to any one of claims 1 to 3, wherein a fatty acid amide represented by the following general formula (I) and / or an alkyl glycol hydroxypropyl ether represented by the following general formula (II) is blended. Composition.
[In the general formula (I), R ¹ —CO represents a fatty acid residue having 12 to 24 carbon atoms, R ² represents an alkanol group having 2 to 4 carbon atoms, and R ³ represents 2 to 4 carbon atoms. The following alkanol groups or alkyl groups having 1 to 3 carbon atoms are represented. ]
[In the general formula (II), R ⁴ represents an alkyl group having 10 to 14 carbon atoms. ]   The shampoo composition of Claim 4 with which the fatty acid amide represented by the said general formula (I) was mix | blended.