JP2016056148A - Skin detergent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a skin detergent composition containing a scrubbing agent without unpleasant skin irritation and foreign body sensation and the like when washing the skin, having an excellent feeling of use while being able to exhibit a sufficient scrubbing effect, and providing a good condition to the skin after washing.SOLUTION: The invention provides a skin detergent composition containing (PEG-400/1,4-butanediol/SMDI) copolymer particles as a scrubbing agent. If desired, at least one kind of surfactant selected from the group consisting of an anionic surfactant, amphoteric surfactant, and nonionic surfactant can be contained.SELECTED DRAWING: None

Description

  The present invention relates to a skin cleansing composition.

  2. Description of the Related Art Conventionally, a skin cleanser composition containing a scrub agent has been provided with the expectation of an effect of removing dirt on the skin and a massage effect that moderately stimulates the skin. As the scrubbing agent used, scrubbing agents such as polyethylene powder, walnut shell particles, and crystalline cellulose that exhibit the above-described effects are widely used.

  However, these general-purpose scrub agents are excellent in removing dirt on the skin and massaging on the skin. However, depending on the size and amount of the particles to be mixed, unpleasant skin irritation may occur during washing, or a foreign body sensation. There arises a problem that the effect of imparting a smooth feel and a smooth feel to the skin after washing is inferior.

  Therefore, in recent years, cleaning cosmetics that can use urethane foam powder as a novel scrubbing agent and exhibit a good feeling of use have been proposed (for example, see Patent Document 1).

JP 2012-140363 A

  The present invention has been made in view of the above-described prior art, has no unpleasant skin irritation feeling or foreign object feeling at the time of washing, is excellent in use feeling and can exhibit a sufficient scrub effect, and after washing It is an object of the present invention to provide a skin cleanser composition containing a scrubbing agent that improves the skin condition of the skin.

That is, the present invention
[1] A skin cleanser composition comprising (PEG-400 / 1,4-butanediol / SMDI) copolymer particles as a scrub agent,
[2] The skin cleanser composition according to [1], wherein a content of a component having a particle diameter of 100 μm or more and 850 μm or less is 0.4 to 10% by mass in 100% by mass of the total composition. object,
[3] In the above [1] or [2], containing at least one surfactant selected from the group of anionic surfactants, amphoteric surfactants and nonionic surfactants It relates to the described skin cleansing composition.

  The skin cleanser composition of the present invention does not give an unpleasant skin irritation feeling or a foreign body sensation at the time of washing, and is excellent in use feeling and exerts a sufficient scrub effect. In addition, the skin cleanser composition of the present invention can impart a smooth and smooth feeling to the washed skin, and has an effect of improving the skin condition.

  The particles contained as a scrub agent in the skin cleansing composition of the present invention are (PEG-400 / 1,4-butanediol / SMDI) copolymer. The (PEG-400 / 1,4-butanediol / SMDI) copolymer used is the INCI name (International Cosmetic Ingredient Dictionary and Handbook, 15th edition, Volume 2, CTFA, 2014, p. 2360): PEG- It is a compound represented by 400/1, 4-BUTANEDIOL / SMDI COPYLYMER.

  In order to make the (PEG-400 / 1,4-butanediol / SMDI) copolymer a particle that is a scrub agent, it may be finely pulverized by a known method, and the obtained particle is JIS standard (JIS Z 8815 or the like). ) Sieve may be used for further classification. In the present specification, (PEG-400 / 1,4-butanediol / SMDI) copolymer particles may be referred to as “particle A”. In the present invention, the shape of the particle A used is not particularly limited, and examples thereof include a spherical shape, an elliptical shape, a scale shape, a flake shape, a plate shape, a rod shape, and a needle shape.

  The particles A used in the present invention include components having a particle size of 100 μm or more and 850 μm or less, that is, (PEG-400 / 1,4-butanediol / SMDI) copolymer particles having a particle size of 100 μm or more and 850 μm or less. In the present specification, the component having a particle size of 100 μm or more and 850 μm or less ((PEG-400 / 1,4-butanediol / SMDI) copolymer particle having a particle size of 100 μm or more and 850 μm or less) may be referred to as “component a”. is there.

  The particle A used in the present invention contains 90% by mass or more of the component a in 100% by mass of the particle A. In the present invention, since the component a is contained in the particle A in an amount of 90% by mass or more, there is no irritation or foreign material feeling when coming into contact with the skin, and a sufficient scrub effect can be exhibited at the time of washing. Furthermore, after washing, the effect of forming a coating film of the above-mentioned copolymer also exhibits an effect that a smooth and smooth skin feel is obtained.

  In the present invention, a commercial product can be used as the particle A. Specific examples of commercially available products include Aqua Coke C-PC (trade name, manufactured by Sumitomo Seika Co., Ltd., average particle size: 438 μm).

  The content of the particles A in the skin cleanser composition is not particularly limited as long as the desired effect is sufficiently exhibited, but usually the viewpoint of exerting an appropriate scrub effect and the skin condition are improved. From a viewpoint, it is preferable to set it as 0.4 mass% or more in 100 mass% of all compositions, and it is more preferable to set it as 2.5 mass% or more. Further, from the viewpoint of a sense of incongruity when coming into contact with the skin, it is preferably 10% by mass or less, more preferably 7% by mass or less, out of 100% by mass of the total composition.

  Further, the content of the component a in the skin cleanser composition is not particularly limited as long as the desired effect is sufficiently exhibited, but usually the viewpoint of exerting an appropriate scrub effect, and the skin condition is good. From the viewpoint of making the total composition 100% by mass, the content is preferably 0.4% by mass or more, and more preferably 2.5% by mass or more. Further, from the viewpoint of a sense of incongruity when coming into contact with the skin, it is preferably 10% by mass or less, more preferably 7% by mass or less, out of 100% by mass of the total composition.

  From the viewpoint of imparting a cleaning effect to the skin cleansing composition of the present invention and various dosage forms, from the group of anionic surfactants, amphoteric surfactants and nonionic surfactants. At least one selected surfactant may be included.

  Specific examples of the anionic surfactant used include, for example, sodium laurate, triethanolamine laurate, sodium myristate, triethanolamine myristate, sodium palmitate, triethanolamine palmitate, sodium stearate, C12-22 higher fatty acid salts such as triethanolamine stearate, potassium coconut oil fatty acid, coconut oil fatty acid arginine, coconut oil fatty acid triethanolamine; sodium lauryl sulfate, triethanolamine lauryl sulfate, sodium myristyl sulfate, stearyl sulfate Alkyl sulfate esters such as sodium, sodium oleyl sulfate, sodium cetyl sulfate; polyoxyethylene lauryl ether sodium sulfate, polyoxyethylene myristylate Polyoxyethylene alkyl ether sulfates such as sodium sulfate; α-olefin sulfonates such as sodium tetradecene sulfonate; Myristoyl methyl taurine sodium, palmitoyl methyl taurine sodium, stearoyl methyl taurine sodium, oleoyl methyl taurine sodium, coconut oil fatty acid N-acylmethyl taurine salts such as sodium methyltaurine; sulfosuccinic acid alkyl salts such as dioctyl sodium sulfosuccinate and lauryl disodium sulfosuccinate; polyoxyethylene alkyl salts of sulfosuccinic acid such as disodium polyoxyethylene lauryl sulfosuccinate; Monoalkyl phosphate salts such as sodium, sodium cetyl phosphate, diethanolamine cetyl phosphate ; Polyoxyethylene lauryl ether sodium phosphate, polyoxyethylene cetyl ether sodium phosphate, polyoxyethylene oleyl ether sodium phosphate, polyoxyethylene alkylphenyl ether sodium phosphate, polyoxyethylene alkylphenyl ether triethanolamine, etc. Polyoxyethylene alkyl ether phosphate ester salt of N-acyl sarcosine salts such as lauroyl sarcosine potassium, lauroyl sarcosine triethanolamine, sodium myristoyl sarcosine, coconut oil fatty acid sarcosine sodium; lauroylmethylalanine sodium, lauroylmethylalanine triethanolamine, Myristoyl methylalanine sodium, palm oil fatty acid sodium methylalanine Any N-acyl-N-methyl-β-alanine salt; sodium lauroyl glutamate, triethanolamine lauroyl glutamate, sodium myristoyl glutamate, potassium stearoyl glutamate, disodium stearoyl glutamate, sodium palm oil fatty acid acyl glutamate, palm oil fatty acid acyl glutamic acid tri N-acylglutamate such as ethanolamine; N-acylglycine salts such as coconut oil fatty acid acylglycine potassium and coconut oil fatty acid acylglycine sodium; sodium lauryl glycol acetate (sodium dodecane-1,2-diol acetate), lauryl glycol acetate Potassium, sodium myristyl glycol acetate, potassium myristyl glycol acetate, sodium palmitate glycol acetate And alkyl ether glycol acetates such as potassium palmitate glycol acetate, sodium stearyl glycol acetate, potassium stearyl glycol acetate, sodium behenyl glycol acetate and potassium behenyl glycol acetate. The said component may be used individually by 1 type, and may be used in combination of 2 or more types as appropriate. The number of moles of ethylene oxide added is not particularly limited as long as the desired effect is sufficiently exhibited.

  Specific examples of amphoteric surfactants used include coconut oil fatty acid amidopropyl betaine, palm oil fatty acid amidopropyl betaine, lauric acid amidopropyl betaine, myristic acid amidopropyl betaine, ricinoleic acid amidopropyl betaine, lauric acid amidopropyl Amidopropyl betaine-type amphoteric surfactants such as hydroxysulfobetaine, palm kernel oil fatty acid acyl-N-carboxyethyl-N-hydroxyethylethylenediamine sodium, amidopropyldimethylamine oxide laurate; lauryldimethylaminoacetic acid betaine, coconut oil alkyldimethyl Aminoacetic acid betaine, stearyldimethylaminoacetic acid betaine, stearyldihydroxyethylbetaine, 2-alkyl-N-carboxymethyl-N-hydride Xyethyl imidazolinium betaine, sodium undecylhydroxyethyl imidazolinium betaine, N-coconut oil fatty acid acyl-N'-carboxyethyl-N'-hydroxyethylethylenediamine sodium (coconut oil alkylcarboxyethyl hydroxyethyl imidazolinium betaine sodium ), Aminoacetic acid betaine-type amphoteric surfactants such as sodium laurylaminodipropionate; lauric acid amidopropyl hydroxysulfobetaine, lauryl hydroxysulfobetaine, coconut oil fatty acid hydroxysulfobetaine, myristic amidopropyl hydroxysulfobetaine, oleamidopropyl Such as hydroxysulfobetaine, laurylsulfobetaine, cocosulfobetaine, cocamidopropylhydroxysultain Ruhobetain type amphoteric surfactants, and the like. The said component may be used individually by 1 type, and may be used in combination of 2 or more types as appropriate.

  Specific examples of the nonionic surfactant to be used include, for example, polyethylene glycol monolaurate, polyethylene glycol dilaurate, polyethylene glycol monomyristate, polyethylene glycol monopalmitate, polyethylene glycol dipalmitate, polyethylene glycol monostearate, Polyoxyethylene fatty acids such as polyethylene glycol distearate, polyethylene glycol monoisostearate, polyethylene glycol diisostearate, polyethylene glycol monooleate, polyethylene glycol dioleate; polyoxyethylene (capryl / capric acid) glyceryl, polyoxyethylene coconut oil fatty acid Glyceryl, polyoxyethylene glyceryl monooleate, monomyris Polyoxyethylene glyceryl fatty acid esters such as polyoxyethylene glyceryl acid, polyoxyethylene glyceryl monostearate, polyoxyethylene glyceryl monoisostearate, polyoxyethylene glyceryl diisostearate, polyoxyethylene glyceryl triisostearate; polyoxymonolaurate Ethylene sorbitan, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan tristearate, polyoxyethylene sorbitan monoisostearate, polyoxyethylene sorbitan triisostearate, polyoxyethylene sorbitan monooleate , Polyoxyethylene sorbitan trioleate, mono coconut oil fatty acid poly Polyoxyethylene sorbitan, sesquioleate, polyoxyethylene sorbitan, such as polyoxyethylene sorbitan fatty acid esters such as sesquistearate polyoxyethylene sorbitan. The said component may be used individually by 1 type, and may be used in combination of 2 or more types as appropriate. The number of moles of ethylene oxide added is not particularly limited as long as the desired effect is sufficiently exhibited.

  The content of the surfactant is not particularly limited as long as the desired effect is sufficiently exhibited. However, from the viewpoint of imparting a cleaning effect and various dosage forms, the total composition 100 is generally used. In mass%, Preferably it is 2-10 mass%, More preferably, it is 4-7 mass%. In addition, content of surfactant represents the total amount of anionic surfactant, an amphoteric surfactant, and a nonionic surfactant.

  In the skin cleanser composition according to the present invention, a polyhydric alcohol, a thickener, a refreshing agent, (PEG-400 / 1, 4- Scrub agents other than butanediol / SMDI) copolymer particles, preservatives, antioxidants, chelating agents, vitamins, animal and plant extract extracts, pearling agents, coloring agents, various fragrances, and the like can be appropriately blended depending on the purpose. .

  Specific examples of the polyhydric alcohol include, for example, ethylene glycol, propylene glycol, dipropylene glycol, polyethylene glycol, 1,3-butylene glycol, glycerin, concentrated glycerin, diglycerin, triglycerin, glucose, maltose, maltitol, and sucrose. Mannitol, sorbitol, 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol, 1,2-decanediol and the like.

  Specific examples of the thickening agent include natural polymer compounds such as xanthan gum, guar gum, carrageenan and locust bean gum; cellulose compounds such as methyl cellulose, ethyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, and carboxymethyl cellulose; carboxyvinyl Examples thereof include polymers, acrylic acid / alkyl methacrylate copolymers, and sodium polyacrylate.

  Specific examples of the refreshing agent include 1-menthol, menthyl glyceryl ether, menthyl lactate, 1-menthyl-3-hydroxybutyrate, dl-camphor, eugenol, menthone, mint, menthyl salicylate, and eucalyptus oil. .

  The dosage form of the skin cleansing composition of the present invention is not particularly limited as long as the desired effect is sufficiently exhibited. For example, liquid, gel, sherbet, emulsion, paste, cream, foam It can be prepared in various dosage forms such as a shape. Moreover, since the skin cleanser composition of the present invention exhibits an appropriate scrubbing effect, it can be suitably used for body shampoos, hand soaps, facial cleansers, cleansing lotions, cleansing creams, massage creams and the like.

  EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example, this invention is not limited only to these Examples. The blending amount represents “% by mass” unless otherwise specified. Moreover, all the compounding components were converted into pure components.

(Preparation of scrub agent 1)
A scrub agent 1 was obtained by using Aqua Coke C-PC (trade name, manufactured by Sumitomo Seika Chemicals Co., Ltd., average particle size: 438 μm), which is a commercial product of particle A.

(Preparation of scrub agent 2)
Commercially available Aqua Coke C-PC is classified using a 149 mesh (aperture: 100 μm) and 60 mesh (aperture: 250 μm) sieve, and a scrub agent having a particle size larger than 100 μm and 250 μm or less is used. A scrub agent 2 was prepared.

(Preparation of scrub agent 3)
Commercially available Aqua Coke C-PC is classified using a sieve of 60 mesh (aperture: 250 μm) and 36 mesh (aperture: 425 μm), and a scrub agent having a particle size larger than 250 μm and 425 μm or less is obtained. A scrub agent 3 was prepared.

(Preparation of scrub agent 4)
Commercially available Aqua Coke C-PC is classified using a sieve of 36 mesh (aperture: 425 μm) and 26 mesh (aperture: 600 μm), and a scrub agent having a particle size larger than 425 μm and not larger than 600 μm is obtained. A scrub agent 4 was prepared.

(Preparation of scrub agent 5)
Commercially available Aqua Coke C-PC is classified using a sieve of 26 mesh (aperture: 600 μm) and 18 mesh (aperture: 850 μm), and a scrub agent having a particle size larger than 600 μm and not larger than 850 μm is obtained. A scrub agent 5 was prepared.

(Preparation of each sample)
Using the scrub agents 1 to 5 prepared above, the skin cleanser compositions of Examples 1 to 7 and Comparative Examples 1 to 3 were prepared according to the compositions described in Tables 1 and 2, and subjected to the following evaluation test. . The results are shown in Table 1 and Table 2, respectively.

  In addition, as a polyethylene powder of a comparative example, flow beads CL-8007 (trade name, manufactured by Sumitomo Seika Co., Ltd., average particle size 600 μm) were used. As polylactic acid, Ecoscrub 20PC (trade name, manufactured by Micro Powders, maximum particle size 840 μm) was used. As apricot nuclei, AP grid <spherical shape> # 40-60 (trade name, manufactured by Ichimaru Falcos, particle diameter of 177 μm to 420 μm) was used.

(Sample evaluation)
Each sample of the examples and comparative examples was used by 10 professional panelists in the form of a face cleanser, and the feeling of use (skin irritation / foreign substance feeling) and the scrub feeling (scrub effect) at the time of face washing were in accordance with the following evaluation criteria. Sensory evaluation was performed. Further, the skin condition (smooth feeling / smooth feeling) after washing the face was subjected to sensory evaluation according to the following evaluation criteria. In the evaluation, the result obtained with the largest number of people was taken as the result of each sample.

<Evaluation criteria for skin irritation and foreign body feeling>
○ (Good): No skin irritation / foreign body sensation △ (Inadequate): Skin irritation / foreign body sensation a little × (Poor): Skin irritation / foreign body sensation (painful)

<Evaluation criteria for feeling of scrub>
◎ (pretty good): Scrub effect is sufficient ○ (good): scrub effect is good △ (insufficient): scrub effect is not good × (poor): no scrub effect at all

<Evaluation criteria for skin condition>
◎ (Remarkably good): Excellent smooth and smooth feeling ○ (Good): Excellent smooth and smooth feeling △ (Unsatisfactory): Inferior to smooth and smooth feeling × (Poor): Smooth and smooth feeling There is no

  From the results shown in Tables 1 and 2, the skin cleanser compositions of each example are superior to the feeling of use without giving an unpleasant skin irritation or foreign body feeling during cleaning, as compared to the comparative examples. In addition, it can be seen that an appropriate scrubbing effect is obtained and the skin condition after washing is also good. On the other hand, conventional scrub agents have an excellent scrub effect, but have unpleasant skin irritation and foreign body sensation, and it is difficult to obtain a good skin condition.

  Hereinafter, formulation examples of the skin cleanser composition according to the present invention will be shown. In addition, content is mass%.

(Formulation Example 1: Sherbet-like detergent) Weight%
Lauric acid amidopropyl betaine 3.0
Sodium dodecane-1,2-diol acetate 2.5
(PEG-400 / 1,4-butanediol / SMDI) copolymer 5.0
Polyethylene powder 3.0
Carboxyvinyl polymer appropriate amount l-menthol appropriate amount Preservative appropriate amount Fragrance appropriate amount
Purified water balance 100.0

(Formulation example 2: soft scrub cleaning agent) Weight%
Lauric acid 2.0
Myristic acid 15.0
Palmitic acid 7.0
Stearic acid 3.0
Potassium hydroxide 5.5
Glycerin 12.0
Sorbitol 3.5
Lauric acid amidopropyl betaine 0.5
(PEG-400 / 1,4-butanediol / SMDI) copolymer 2.0
Edetate tetrasodium tetrahydrate 0.1
Preservative appropriate amount
Purified water balance 100.0

Claims (3)

  A skin cleanser composition comprising (PEG-400 / 1,4-butanediol / SMDI) copolymer particles as a scrub agent.   The skin cleanser composition according to claim 1, wherein a content of a component having a particle diameter of 100 µm or more and 850 µm or less is 0.4 to 10% by mass in 100% by mass of the total composition.   The skin cleanser composition according to claim 1 or 2, comprising at least one surfactant selected from the group of an anionic surfactant, an amphoteric surfactant and a nonionic surfactant. object.