JP2006248941A - Skin cleanser - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a skin cleanser which has excellent rinsability on washing, gives excellent skin touch (smooth touch, dry touch), after the skin is dried with towel, and has excellent product stability. <P>SOLUTION: This skin cleanser is characterized by containing the emulsion of a polyolefin-based polymer having a melting point of ≥105°C. The polyolefin-based polymer in the polymer emulsion has preferably an average particle diameter of 10 to 1,000 nm. The polyolefin-based polymer is preferably polyethylene or its derivative, polypropylene or its derivative, or their copolymer. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a skin cleansing material excellent in rinsing properties during washing, skin feel after towel drying (smooth feeling, smooth feeling) and product stability.

  A composition that cleans the skin such as the face, body, and fingers is required to have mildness, and at the same time, the skin feel during and after cleaning is also required as an important quality for consumers. In particular, the non-smoothness (good rinsing property) in rinsing during washing, the refreshing skin feel after washing, and the smooth skin feel are the tastes that consumers prefer, and in order to achieve this, Since then, various ideas have been made.

  As a method for improving the rinsing property at the time of washing and the smooth feeling after use, for example, the glass transition temperature (Tg) of the polymer is 0 to 60 ° C., and the transmittance at a concentration of 10% by mass is 50%. It has been proposed to form a skin cleanser by containing the above polymer emulsion in an amount of 0.01 to 10% by mass in terms of solid content (see, for example, Patent Document 1).

  Further, a cleaning composition containing a higher fatty acid salt, a water-insoluble solid powder, an acylated amino acid-based active agent and an amine oxide (see, for example, Patent Document 2), an inorganic powder and a skin containing an anionic surfactant A cleaning material (see, for example, Patent Document 3) has also been proposed.

  In addition, a detergent composition containing a higher fatty acid salt, a sugar surfactant, and a water-insoluble powder has been proposed (see, for example, Patent Document 4).

  Furthermore, a cleaning composition comprising titanium oxide and polyethylene powder is also proposed (see, for example, Patent Document 5).

JP 9-125091 A JP-A-8-3030 JP-A-8-67622 JP-A-4-372700 JP-A-11-269492

  However, since the polymer used in the invention described in Patent Document 1 is a polymer having a glass transition temperature (Tg) of 0 to 60 ° C, it does not become a crystal with an irregular structure in the temperature range of 0 to 60 ° C. Amorphous. For this reason, the use of this skin cleansing agent causes stickiness, and the effect is not sufficient in terms of improving rinsing properties during cleaning.

  In addition, the cleaning materials described in Patent Documents 2 and 3 are insufficient in the effect of achieving both the rinsing property for cleaning and the good skin feel after towel drying. In addition, these cleaning materials mainly use inorganic powder as a constituent component, and this inorganic powder elutes metal ions, which may cause quality problems such as discoloration.

  In the invention described in Patent Document 4, the effect of improving the stickiness during use and the refreshing feeling after use is insufficient, and the dispersion stability of the water-insoluble powder as a component in the product is poor. This is not preferable in terms of product quality.

  In addition, in the invention described in Patent Document 5, the use of titanium oxide and polyethylene powder increases the detergency, but the effect of satisfying both the rinsability during washing and the smooth feeling after towel drying is insufficient. Further, the dispersion stability of the titanium oxide and polyethylene powder in the product is not good.

  The present invention has been made in view of the above, and an object of the present invention is to provide a skin cleanser that is excellent in rinsing rinsability, skin feel after towel drying (smooth feeling, smooth feeling), and product stability. To do.

  As a result of intensive studies in order to solve the above problems, the present inventors have obtained the following knowledge. That is, when a polymer emulsion is added, the component polymer adsorbs to the skin and protects the skin surface, but when the degree of adsorption is appropriate, the skin feel is good. Therefore, a good skin feel can be realized by using a polymer emulsion having a good adsorptivity to the skin surface. Then, when various polymer emulsions were compared and examined, it came to confirm that a specific polymer emulsion has the property to adsorb | suck to the skin surface. The present inventors have found that a skin cleanser containing this polymer emulsion can solve the above-mentioned problems, and have completed the present invention. That is, the present invention provides a skin cleanser characterized by containing a polyolefin polymer emulsion having a polymer melting point of 105 ° C. or higher.

  In the present specification, the melting point means a thermal transition point of a normal polymer. That is, when the temperature rises, the crystallinity disappears above this temperature and becomes a molten state, and when the temperature falls, it crystallizes at this temperature and the volume is remarkably reduced and hardened. The measurement of the melting point can be usually performed using a temperature modulation differential scanning calorimeter generally used. The polymer used in the skin cleansing material of the present invention is a so-called polyolefin-based polymer, and since many of them do not exhibit a glass transition point (Tg), the heat transition point is expressed using the melting point. Some polyolefin-based polymers exhibit both a glass transition point (Tg) and a melting point, but their glass transition point (Tg) usually exceeds 60 ° C. The present invention is also directed to polymers exhibiting both such glass transition points (Tg) and melting points.

  That is, the skin cleanser of the present invention is characterized by containing a polyolefin polymer emulsion having a polymer melting point of 105 ° C. or higher.

  ADVANTAGE OF THE INVENTION According to this invention, the skin cleansing agent excellent in the rinse property of washing | cleaning, the skin feel (smooth feeling, smooth feeling) after towel drying, and product stability can be provided.

Hereinafter, embodiments of the present invention will be described.
The skin cleanser of the present invention is characterized by containing a polyolefin polymer emulsion having a polymer melting point of 105 ° C. or higher. The polymer emulsion in the present invention refers to a dispersion of polymer fine particles.

  The polymer used as a raw material for the polymer emulsion of the present invention is a polyolefin polymer. Examples of the polyolefin polymer include polyethylene wax, polypropylene wax, oxides thereof, polyethylene oxide wax containing these carboxyl groups, propylene oxide wax, copolymer wax with ethylene and propylene, ethylene copolymer wax, and the like. Oxides, maleic acid addition waxes, and paraffinic waxes used for modification thereof. In particular, polyolefin waxes such as the above-mentioned carboxyl group-containing oxidized polyethylene wax and propylene oxide wax are preferred because they have a high effect of imparting a good skin feel. Although the production of the polymer emulsion will be described later, the melting point of the polymer referred to in the present invention may be 105 ° C. or higher after the production of the polymer emulsion, and the melting point of the polymer itself as the raw material for the polymer emulsion is 105 ° C. It does not have to be above. However, the melting point of the polymer itself, which is the raw material for the polymer emulsion, often coincides with the melting point of the polymer after the production of the polymer emulsion.

  For the production of the polymer emulsion used in the present invention, as disclosed in JP-A-2002-69302, JP-A-2002-69386, etc., a stirrer, a thermometer, a temperature controller, and, if necessary, a high-pressure homogenizer The emulsification equipment connected to each other can be used. However, in the present invention, the method for producing the polymer emulsion is not limited to these methods.

  When the wax is emulsified and dispersed to obtain a polymer emulsion, for the purpose of adjusting the particle size of the polyolefin polymer and improving the stability over time of the resulting emulsion, for example, an appropriate amount of ammonia, alkylamine, monophorin, alkanolamine, An amine compound such as an alkyl alkanolamine, or an alkali metal hydroxide such as lithium hydroxide, sodium hydroxide, or potassium hydroxide can be added.

  In the present invention, among the polymer emulsions obtained as described above, a polyolefin polymer having a melting point of 105 ° C. or higher, preferably 120 ° C. or higher is used. When the melting point of the polyolefin polymer is lower than 105 ° C., stickiness may occur at the time of washing and after towel drying, or the amount of polymer adsorbed on the skin surface is insufficient, and the rinsing property of washing and good skin feel after towel drying. (Smooth feeling, smooth feeling) cannot be realized.

  The particle size of the polyolefin-based polymer in the polymer emulsion can be measured using a particle size measuring apparatus that is usually used, for example, N4SD manufactured by Beckman Coulter, HORIBA LA-920 manufactured by Horiba, or the like.

  The average particle size of the polyolefin-based polymer is preferably 10 to 1000 nm, more preferably 50 to 200 nm. If the thickness is less than 10 nm, a good skin feel that cannot be recognized even if the polymer is adsorbed to the skin cannot be expressed. If it exceeds 1000 nm, the polymer is difficult to adsorb to the skin. And good skin feel after towel drying cannot be expressed. Furthermore, polymer emulsions in which the polyolefin-based polymer is polyethylene and its derivatives, polypropylene and its derivatives, or copolymers thereof, not only have a high melting point, but also have high adsorptivity to the skin due to the relationship between hydrophobicity and hydrophilicity. It is preferable because it is easy to express rinsing properties during washing and a good skin feel after towel drying.

  Further, when the polyolefin-based polymer is blended without being emulsified, particularly in a liquid product, since it aggregates and settles and separates, a good skin feel does not appear or the effect of improving a good skin feel is small. For the first time, dispersion stability in various product forms such as liquid and gel can be realized by emulsifying and blending a polyolefin polymer.

  The content of the polymer emulsion in the skin cleanser of the present invention is preferably 0.1 to 10% by mass in terms of solid content. When the content of the polymer emulsion is less than 0.1% by mass, the rinsing properties of washing and the effect of imparting a good skin feel after towel drying are small, and when the content exceeds 10% by mass, the amount of polymer adsorbed on the skin is reduced. Too much reduces the good skin feel after towel drying.

  Examples of polyolefin polymer emulsions used in the present invention include commercially available polyethylene wax emulsions manufactured by Toho Chemical Co., Ltd. under the trade names “Hitech E Series (E-2213, E-9015, E-9015, E -5000, E-5403B, E-6000, E-103N, E-4B, etc.) "and the product name" Hi-Tech P series (P-5060 etc.) "which is a polypropylene wax emulsion. "Series" is preferred.

  Various anionic, amphoteric, nonionic, and cationic surfactants can be arbitrarily used in the skin cleanser of the present invention.

  Specifically, the anionic surfactant is not particularly limited as long as it is used for a normal cleaning agent, and includes a carboxylic acid surfactant, a sulfate surfactant, a sulfonate surfactant, and phosphoric acid. An ester surfactant or the like can be used alone or in combination of two or more.

  As said carboxylic acid-type surfactant, in addition to C12-C22 saturated and unsaturated fatty acids, coconut oil fatty acid, hydrogenated palm oil fatty acid, palm oil fatty acid, hydrogenated palm oil fatty acid, beef tallow fatty acid, hydrogenated beef tallow which are a mixture thereof Fatty acid salts such as potassium salts such as fatty acids, sodium salts, diethanolamine salts, triethanolamine salts, 2-amino-2-methylpropanol salts, 2-amino-2-methylpropanediol salts, lysine salts, arginine salts, alkyl ethers Examples thereof include carboxylates, N-acyl sarcosine salts, N-acyl glutamates, and specific examples include potassium laurate, sodium lauryl ether carboxylate, sodium N-lauroyl sarcosine, sodium N-lauroyl glutamate, N -Lauroyl-N-methyl-β- And La Nin triethanolamine. The fatty acid salt may be blended as it is, or the fatty acid salt and the alkali may be blended separately in the cleaning composition and neutralized.

  Examples of the sulfate surfactants include alkyl sulfates and polyoxyalkylene sulfates, and specific examples include sodium polyoxyethylene lauryl sulfate.

  Examples of the sulfonate-based surfactant include sulfosuccinic acid-based, taurate-based, isethionate-based, α-sulfonic acid-based, and the like. Specific examples include, for example, N-cocoylmethyl taurate sodium, polyoxyethylene alkylsulfosuccinic acid. Examples include sodium acid.

  Examples of the phosphate ester surfactant include alkyl phosphates, and specific examples include monolauryl phosphate triethanolamine and monolauryl phosphate dipotassium.

  The amphoteric surfactant is not particularly limited as long as it is used in ordinary detergents, and carboxybetaine, sulfobetaine, imidazolium betaine, etc. may be used alone or in combination of two or more. Can do.

  Examples of the carboxybetaine surfactant include lauryldimethylaminoacetic acid betaine, coconut oil fatty acid amidopropyl betaine, and the like. Examples of the sulfobetaine surfactant include coconut oil fatty acid dimethylsulfopropylbetaine and lauryldimethylaminohydroxysulfobetaine. Examples of the imidazolium betaine surfactant include coconut oil alkyl-N-hydroxyethyl imidazolinium betaine. In particular, those desalted are preferably used.

  The nonionic surfactant is not particularly limited as long as it is used for ordinary detergents, and polyoxyalkylene addition type, mono- or diethanolamide type, amine oxide type, sugar type, glycerin type and the like alone. , Or a combination of two or more.

  Examples of the polyoxyalkylene addition type include polyoxyethylene lauryl ether, polyoxyethylene sorbitan monooleate, polyethylene glycol fatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxypropylene / polyoxyethylene lauryl ether, and the like. .

  Examples of the mono- or diethanolamide type include lauric acid monoethanolamide, coconut oil fatty acid diethanolamide, and N-polyhydroxyalkyl fatty acid amide.

  Examples of the sugar system include sugar ether-based alkyl saccharide systems, sugar amide systems, and sorbitan fatty acid ester systems.

  Examples of the amine oxide include lauryl dimethylamine oxide which is an acyl tertiary amine oxide, lauryl dimethyl phosphine oxide which is an acyl tertiary phosphine oxide, and the like.

  Examples of the cationic surfactant include mono- or dialkyl-added quaternary ammonium salts having a linear or branched alkyl group, and those obtained by adding an alkylene oxide to the alkyl group. Of these, linear monoalkyl quaternary ammonium salts having 12 to 16 carbon atoms, quaternary ammonium salts having a branched alkyl group having 20 to 28 carbon atoms, and the like are particularly preferable.

  These surfactants can be used singly or in combination of two or more, and are preferably contained in an amount of 2% by mass or more in the skin cleanser of the present invention. This is because if the amount is less than 2% by mass, foaming during washing is poor.

  In addition to the above components, any component that is usually used in a skin cleanser can be appropriately blended within a range that does not interfere with the effects of the present invention. Examples of optional ingredients that can be incorporated into the skin cleanser include glycols such as ethylene glycol and polyethylene glycol, polyols such as propylene glycol, glycerin and sorbitol, oils such as silicones and higher alcohols, fungicides, Anti-dandruff agents, vitamins, cooling agents, protein derivatives, water-soluble polymer compounds, water-swelling clay minerals, inorganic salts, preservatives, pH adjusters, sequestering agents, ultraviolet absorbers, animal and plant extracts or derivatives thereof, Examples include pigments and fragrances. In addition, the compounding quantity of these arbitrary components can be normally mix | blended in the range which does not prevent the effect of this invention.

  A list of perfume ingredients used as perfumes can be found in various publications such as “Perfume and Flavor Chemicals”, Vol. I and II, Steffen Arctander, Allured Pub. Co. (1994) and "Synthetic fragrance chemistry and commercial knowledge", Motoichi Into, Chemical Industry Daily (1996) and "Perfume and Flavor Materials of Natural Origin", Stephen Arctander, Allred Pub. Co. (1994) and "Encyclopedia of Scents", edited by Japan Fragrance Association, Asakura Shoten (1989) and "Performer Material Performance V.3.3", Boelens Aroma Chemical Information Service (1996) and "Flower oil". , Danute Lajaujis Anonis, Allured Pub. Co. (1993), etc., each of which is incorporated herein by reference.

  Examples of the perfume solvent include ethanol, benzyl benzoate, acetin (triacetin), MMB acetate (3-methoxy-3-methylbutyl acetate), ethylene glycol dibutyrate, hexylene glycol, dibutyl sebacate, deltile extra (isopropyl). Myristate), methyl carbitol (diethylene glycol monomethyl ether), carbitol (diethylene glycol monoethyl ether), TEG (triethylene glycol), benzyl benzoate, propylene glycol, diethyl phthalate, tripropylene glycol, aboline (dimethyl phthalate), Deltyl prime (isopropyl palmitate), dipropylene glycol DPG-FC (dipropylene glycol), farnesene, di Cutyl adipate, tributyrin (glyceryl tributanoate), hydrolite-5 (1,2-pentanediol), propylene glycol diacetate, cetyl acetate (hexadecyl acetate), ethyl abiate, avaline (methyl abiate), citroflex A-2 (acetyl triethyl citrate), Citroflex A-4 (tributyl acetyl citrate), Citroflex No. 2 (triethyl citrate), Citroflex No. 4 (tributyl citrate), Durafix (methyl dihydroabietate), MITD (isotridecyl myristate), polylimonene (limonene polymer), 1,3-butylene glycol and the like.

  These fragrance | flavor solvents can be mix | blended 0.1-99 mass% in a fragrance | flavor composition, Preferably, it is 0.1-10 mass%.

  Examples of the flavor stabilizer include dibutylhydroxytoluene, butylhydroxyanisole, vitamin E and its derivatives, catechin compounds, flavonoid compounds, polyphenol compounds, and the like. These fragrance | flavor stabilizers can be mix | blended 0.0001-10 mass% in a fragrance | flavor composition, Preferably, it is 0.001-5 mass%. Among these, a preferable stabilizer is dibutylhydroxytoluene.

  The skin cleansing agent of the present invention can be prepared according to a conventional method, and its dosage form can be any dosage form such as liquid, paste, solid, and powder.

  Moreover, the skin cleansing agent of the present invention can be used as, for example, a facial cleanser, a body cleanser, a scalp cleanser (shampoo), and the like. When the skin cleansing material of the present invention is in a liquid form, there is no particular restriction on the apparatus for preparing the skin cleansing material, but a plurality of stirring blades that can be mixed with the shearing force, for example, a propeller, a turbine, a disper, etc. A stirrer is desirable.

  Hereinafter, the present invention will be described in more detail based on examples. In addition, this invention is not limited to the following Example. Moreover, in the following examples, “%” represents “% by mass”, and all component amounts described in the examples are converted into pure amounts unless otherwise specified.

Synthesis Example 1 Polyolefin-based polymer emulsion In an emulsification facility having an internal volume of 1.5 liters equipped with a thermometer, a stirrer, and a temperature controller, 300 g of polyethylene oxide having a melting point of 105 ° C., an acid value of 16 mg KOH / g, and a density of 0.93 g / mL, Add 650 g of ion-exchanged water, 25 g each of sodium oleate and sorbitan fatty acid ester as surfactants, and 10 g of 48% aqueous potassium hydroxide solution, and replace with nitrogen, then seal and seal at 150 ° C. for 1 hour at high speed. did. Thereafter, the solution was cooled to 130 ° C., and then passed through a high-pressure homogenizer (gaulin emulsifier) at 400 atm to cool to 40 ° C., thereby obtaining a polymer emulsion (1). The melting point of the polymer constituting the polymer emulsion (1) was 105 ° C., and the average particle size of the polymer was 95 nm.

Synthesis Example 2 Polyolefin Polymer Emulsion Polyethylene oxide “AC-392” having a melting point of 135 ° C. and a density of 0.93 was added to an emulsification facility having an internal volume of 1.5 liters equipped with a thermometer, a stirrer, and a temperature controller (trade name: former Allied) 300 g of chemical), 650 g of ion-exchanged water, and 30 g of Pegnol D-208, Pegnol D-210, and Pegnol D-214 as surfactants (nonionic surfactants) (all manufactured by Toho Chemical Co., Ltd.) Then, 10 g of a 48% potassium hydroxide aqueous solution was added, and the mixture was replaced with nitrogen, followed by high-speed stirring at 160 ° C. for 2 hours. The mixture was emulsified by high-speed stirring and then cooled to obtain a polymer emulsion (2). The melting point of the polymer constituting this polymer emulsion (2) was 135 ° C., and the average particle size of the polymer was 120 nm.

Synthesis Example 3 Polyolefin polymer emulsion In an autoclave of an emulsification facility having an internal capacity of 0.8 L equipped with a stirrer, a thermometer, and a temperature controller, an ethylene (acrylic acid: 20% by mass, melt index 500) copolymer 200 g, Add 6.0 g of high-density polyethylene with a melting point of 137 ° C. and an acid value of 30 mg KOH / g, 10 g of 25% aqueous ammonia and 50 g of soft water, seal it, and stir at 180 ° C. and 7 atm for 5 hours to dissolve and emulsify each component. Distributed. Furthermore, 480 g of water added with 12 g of heated water 25% ammonia water was injected and emulsification was continued. After the emulsification, the polymer emulsion (3) was obtained by cooling to 40 ° C. The melting point of the polymer constituting this polymer emulsion (3) was 137 ° C., and the average particle size of the polymer was 150 nm.

Synthesis Example 4 Polyolefin Polymer Emulsion A polymer emulsion (4) was prepared in the same manner as in Synthesis Example 1 except that 25 g each of the surfactant in Synthesis Example 1 was used instead of sucrose oleate and decaglycerin monooleate. Obtained. The melting point of the polymer constituting the polymer emulsion (4) was 105 ° C., and the average particle size of the polymer was 200 nm.

Synthesis Example 5 Polyolefin-based polymer emulsion Instead of the oxidized polyethylene in Synthesis Example 1, 300 g of oxidized polyethylene having a melting point of 135 ° C., an acid value of 25 mg KOH / g, and a density of 0.93 g / mL was used, and the surfactant was sodium oleate. The sorbitan fatty acid ester was used in place of 90 g of decaglycerin monolaurate. After replacing with nitrogen, it was sealed and stirred at 160 ° C. for 1 hour at high speed. Thereafter, this solution was cooled to 130 ° C., and then passed through a high-pressure homogenizer under 400 atm and cooled to 40 ° C. to obtain a polymer emulsion (5). The melting point of the polymer constituting this polymer emulsion (5) was 135 ° C., and the average particle size of the polymer was 720 nm.

Comparative Synthesis Example 1 Polyolefin-based polymer emulsion In place of the high-density polyethylene in Synthesis Example 3, 6.0 g of low-density polyethylene having a melting point of 101 ° C. and an acid value of 16 mgKOH / g was used. A polymer emulsion (1) was obtained. The melting point of the polymer constituting this comparative polymer emulsion (1) was 101 ° C., and the average particle size of the polymer was 100 nm.

Comparative Synthesis Example 2 Polyolefin Polymer Emulsion Instead of the ethylene-based (acrylic acid: 20 mass%, melt index 500) copolymer in Synthesis Example 3, an ethylene-based (methacrylic acid: 20 mass%, melt index 500) copolymer A comparative polymer emulsion (2) was obtained in the same manner as in Synthesis Example 3 except that 200 g and 6.0 g of an ethylene copolymer having a melting point of 101 ° C. and an acid value of 16 mg KOH / g were used. The melting point of the polymer constituting this comparative polymer emulsion (2) was 101 ° C., and the average particle size of the polymer was 90 nm.
The outline of the polymer emulsion is shown in the following “Table 1” and “Table 2”.

Comparative Synthesis Example 3 Polyolefin Polymer Powder The polymer emulsion (1) obtained in Synthesis Example 1 was spray-dried under reduced pressure to obtain a comparative polyolefin polymer powder.

Examples 1-5 and Comparative Examples 1-2
Using the polymer emulsions obtained in the above-mentioned polyolefin-based polymer emulsion synthesis examples 1 to 5 and comparative synthesis examples 1 and 2, skin cleansing compositions having the compositions shown in the following “Table 3” were prepared. In the following examples, the fragrance raw material of the fragrance composition used is one of the disclosures of the present specification by citing the list described in [0027] to [0045] of JP-A-2002-128658. Part.

  About the obtained skin cleansing agent, the following method evaluated the rinse property at the time of washing | cleaning, the favorable skin feel (smooth feeling, smooth feeling) after towel drying, and product stability. In addition, what separated the polymer emulsion evaluated by shaking and mixing so that a polymer might become uniform. The results are shown in “Table 4” below.

[Evaluation methods]
Taking 2 g of the skin cleansing agent prepared in the above composition, washing the face, rinsing at the time of washing and good skin feel after towel drying (smooth feeling, smooth feeling) by sensory evaluation by 10 panelists, the following Evaluated by criteria. The score was the average of 10 panelists.

<Rinse when washing>
5 points: No sliminess.
4 points: The slime disappears from the side of the rinse.
3 points: After the bubbles flow, the lukewarm remains, but then disappears immediately.
2 points: After the bubbles flow, the mucus remains, and it takes time to rinse off.
1 point: Even after rinsing, the slime does not disappear.

<Skin feel after towel drying>
5 points: Smooth and smooth.
4 points: Slightly smooth and smooth.
3 points: I do not feel stickiness.
2 points: Slightly sticky.
1 point: Sticky.

<Product stability>
Pyrex (registered trademark) glass bottles were filled and stored in an environment of 50 ° C. for 4 weeks. After storage, the appearance was judged according to the following criteria.

(Product stability standards)
5 points: The polymer emulsion is stably dispersed after 4 weeks.
4 points: The polymer emulsion is stably dispersed after 3 weeks, but separated after 4 weeks.
3 points: The polymer emulsion is stably dispersed after 2 weeks, but separated after 3 weeks.
2 points: The polymer emulsion is stably dispersed after one week, but is separated after two weeks.
1 point: The polymer emulsion is separated in less than one week immediately after blending.

  As shown in the above-mentioned "Table 4", Examples 1 to 5 were excellent in all of the rinsing properties at the time of washing, the good skin feel after the towel drying (smooth feeling, smooth feeling) and the product stability.

[Examples 6 to 17]
Various cleaning materials were prepared according to the compositions shown in Tables 6 to 17 and evaluated in the same manner as in Examples 1 to 5. As a result, it was excellent in all of the rinsing properties at the time of washing, the good skin feel after the towel drying (smooth feeling, smooth feeling) and the product stability. In addition, unless otherwise indicated, the composition of the Example of Examples 1-17 was accommodated in the packaging container shown below, and the effect of this invention was confirmed.

Abbreviations: PP polypropylene, PET polyethylene terephthalate, HDPE
High density polyethylene, LDPE Low density polyethylene, NY Nylon container 1: Bottle (Material: innermost layer HDPE, outermost layer PP), Pump dispenser (Material: PP, PE)
Container 2: Bottle (Material: PET), Pump Dispenser (Material: PP, PE)
Container 3: Bottle (Material: PP), Pump Dispenser (Material: PP, PE)
Container 4: Bottle (Material: HDPE), Pump Dispenser (Material: PP, PE)
Container 5: Bottle (material: soft glass), cap (material: PP)
Container 6: Bag-shaped container (Materials: innermost layer LDPE, intermediate layer aluminum layer, outermost layer PET)
Container 7: Bag-shaped container (Materials: innermost layer LDPE, intermediate layer aluminum vapor deposition layer, outermost layer nylon)
Container 8: Bag-shaped container (Material: Glass vapor deposition)

  The properties of polymer emulsions other than the polymer emulsions (1) to (5) used in the following examples are shown in “Table 5” below.

Moreover, the various components used in Examples 6 to 16 are as follows.
* 1 Obazoline LB-SF (trade name, manufactured by Toho Chemical Industry Co., Ltd.)
* 2 Emarex 603 (trade name, manufactured by Nippon Emulsion)
* 3 Kunipia F (trade name, manufactured by Kunimine Industries)
* 4 Metroose HPMC60SH-4000 (trade name, manufactured by Shin-Etsu Chemical Co., Ltd.)
* 5 ReoR MS-100 (trade name, manufactured by Lion Chemical Co., Ltd.)
* 6 BY22-055 (trade name, manufactured by Toray Dow Corning Silicone)
* 7 Cybinol PE-3 (trade name, manufactured by Seiden Chemical)
* 8 Melissa extract BG-50 (trade name, manufactured by Koei Kogyo Co., Ltd.)
* 9 Seaweed extract powder (Alps Pharmaceutical)
* 10 Birch extract (Maruzen Pharmaceutical)
* 11 Dipotassium glycyrrhizinate (Maruzen Pharmaceutical)
* 12 Reoir MS-200 (trade name, Lion Chemical Co., Ltd.)
* 13 Triclosan (trade name, manufactured by Ciba Specialty Chemicals)
* 14 Isopropylmethylphenol (Osaka Kasei)
* 15 SANNOL LMT-1430 (trade name, manufactured by Lion Chemical Co., Ltd.)
* 16 Home Lead CD (trade name, manufactured by Lion Chemical Co., Ltd.)
* 17 Amidette 2C (trade name, manufactured by Kawaken Fine Chemicals)
* 18 Leo Guard GP (trade name, manufactured by Lion Chemical Co., Ltd.)
* 19 Oil-soluble licorice extract P-T40N (trade name, manufactured by Maruzen Pharmaceutical)
* 20 Octopirox (brand name, manufactured by Clariant Japan)
* 21 BY22-020 (trade name, manufactured by Toray Dow Corning Silicone)
* 22 EMALEX 116 (trade name, manufactured by Nippon Emulsion)
* 23 Orange Sweet Oil (trade name, manufactured by Ikeda Bussan)
* 24 SH200-10,000cs (trade name, manufactured by Toray Dow Corning Silicone)
* 25 POLYOX WSR-N750 (trade name, manufactured by Union Carbide)
* 26 Polagel NF (trade name, manufactured by American Colloid)
* 27 Amidette 2L (manufactured by Kawaken Fine Chemicals)
* 28 Obazoline LB (trade name, manufactured by Toho Chemical Industry Co., Ltd.)
* 29 EMALEX BHA-10 (trade name, manufactured by Nippon Emulsion)
* 30 SH200-30cs (trade name, manufactured by Toray Dow Corning Silicone)
* 31 Saracos 99 (trade name, manufactured by Cognis Japan)
* 32 LAPONITE XLG (trade name, manufactured by Nippon Silica)
* 33 Enagicol L-30B (trade name, manufactured by Lion Chemical Co., Ltd.)
* 34 Rosemary water (trade name, manufactured by Maruzen Pharmaceutical Co., Ltd.)
* 35 EMALEX HC-5 (trade name, manufactured by Nippon Emulsion)
* 36 Refined jojoba oil (trade name, Koei Kogyo)
* 37 Amisoft LT-12 (trade name, manufactured by Ajinomoto Co., Inc.)
* 38 Softazoline CL (trade name, manufactured by Kawaken Fine Chemicals)
* 39 Kunipia F (trade name, manufactured by Kunimine Industries)
* 40 EMALEX SPO-150 (trade name, manufactured by Nippon Emulsion)
* 41 BY22-060 (trade name, manufactured by Toray Dow Corning Silicone)
* 42 Jaguar C14S (trade name, manufactured by Sange Co., Ltd.)
* 43 ELFANAT-84 (trade name, manufactured by Lion Chemical Co., Ltd.)
* 44 EMALEX GWIS-10 (trade name, manufactured by Nippon Emulsion)
* 45 Kunipia G (trade name, manufactured by Kunimine Industries)
* 46 Sunflower oil (trade name, manufactured by Nikko Chemical)
* 47 Emarex OD-5 (trade name, manufactured by Nippon Emulsion)
* 48 Cethiol HE (trade name, manufactured by Henkel)
* 49 Emarex 715 (trade name, manufactured by Nippon Emulsion)
* 50 PRG # 1000 (trade name, manufactured by Lion Chemical Co., Ltd.)

[Example 6]

[Example 7]

[Example 8]

[Example 9]

[Example 10]

包装容器：フォーマー容器（吉野工業社製）：特開平７−３１５４６３号公報の第２実
施例として記載されたフォーマー容器 [Example 11]

Packaging container: Former container (manufactured by Yoshino Kogyo Co., Ltd.): Former container described as the second embodiment of JP-A-7-315463

[Example 12]

[Example 13]

[Example 14]

包装容器：本組成物を特開２００１−３１４３４２号公報の実施例１〜１３に記載されたシートにシート質量の３倍量を含浸させる。これを更にピロー包装（最内層ＬＤＰＥ、中間層アルミニウム層、最外層ＰＰ）に収容する。 [Example 15]

Packaging container: The composition is impregnated with the sheet described in Examples 1 to 13 of JP-A No. 2001-314342 in an amount of 3 times the sheet mass. This is further accommodated in pillow packaging (innermost layer LDPE, intermediate layer aluminum layer, outermost layer PP).

[Example 16]

[Example 17]

  As described above, according to the present invention, a skin cleanser excellent in rinsing properties during washing, skin feel after towel drying (smooth feeling, smooth feeling) and product stability is provided.

Claims (5)

  A skin cleansing material comprising a polyolefin polymer emulsion having a polymer melting point of 105 ° C or higher.   An average particle size of the polyolefin polymer is 10 to 1000 nm.   The skin cleanser according to claim 1 or 2, wherein the polyolefin-based polymer is polyethylene and a derivative thereof, polypropylene and a derivative thereof, or a copolymer thereof.   Furthermore, surfactant is contained, The skin cleansing material of any one of Claims 1-3 characterized by the above-mentioned.   The skin cleanser according to claim 4, wherein the surfactant is a carboxylic acid anionic surfactant.