JP2000302639A - Sheet-like pack cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject cosmetic in the form of a sheet bearing an application layer, having high cornoid lamella-removing effect and sensing no pain when peeled off the skin. SOLUTION: This cosmetic in the form of a sheet bearing an application layer, is obtained by formulating (A) a dextrin and (B) at least one polymeric compound pref. 40,000-500,000 in molecular weight, selected from the group consisting of polyvinylpyrrolidone, copolymers of alkyl (meth)acrylate and dimethylaminoethyl (meth)acrylate, poly(2-acrylamido-2-methylpropanesulfonic acid) and polymethacryloyloxytrimethylammonium. It is preferable that the above cosmetic ingredients are applied onto a polyester film and a hydrophobic or hydrophilic nonwoven fabric is laminated thereon as the application layer, and the above cosmetic ingredients contain powder as well.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a pack cosmetic. More specifically, the present invention relates to a sheet-shaped pack cosmetic for removing square plugs and dirt formed in pores.

[0002]

2. Description of the Related Art In recent years, from the viewpoint of increasing health awareness of women's skin and maintaining the makeup effect, there is a demand for a pack cosmetic that can easily and reliably remove keratotic plugs and dirt clogged in pores.

[0003]

However, conventional peel-off type packs and sheet-type cataplasms used for removing plugs have been used after drying to remove plugs and dirt without fail. When the peel strength is increased, there is a problem that the skin feels pain at the time of peeling and hurts the skin,
There has been a demand for the development of a pack cosmetic that does not cause pain when peeled off and has a high keratotic plug removal effect.

[0004] The present inventors have conducted intensive studies in view of the above-mentioned circumstances. As a result, a sheet-shaped pack cosmetic containing dextrin and a polymer compound has a high effect of removing keratotic plugs and dirt, and has a high peeling effect. The present inventor has found a new finding that he does not feel pain at the time, and has completed the present invention.

[0005] It is an object of the present invention to provide a novel sheet pack cosmetic which has a high keratotic plug removing effect and does not cause pain when peeled off.

[0006]

That is, the present invention provides a pack cosmetic comprising dextrin and a polymer compound, wherein the form is a sheet having an adhesive layer. Is provided.

The present invention also provides the above-mentioned sheet-shaped pack cosmetic, wherein the pack cosmetic is applied on a polyester film, and a hydrophobic or hydrophilic nonwoven fabric is laminated thereon as an adhesive layer. Is what you do.

Further, the present invention provides the above-mentioned sheet-shaped pack cosmetic, characterized in that the pack cosmetic further contains a powder.

[0009] The present invention also relates to the present invention, wherein the high molecular compound is polyvinylpyrrolidone, an alkyl (meth) acrylate and dimethylaminoethyl (meth) acrylate copolymer,
Provided is the above-mentioned sheet-shaped pack cosmetic, which is one or more polymer compounds selected from the group consisting of poly-2-acrylamido-2-methylpropanesulfonic acid and polymethacryloyloxytrimethylammonium. Things.

Further, the present invention provides the above-mentioned sheet-shaped pack cosmetic, wherein the molecular weight of the polymer compound is from 40,000 to 500,000.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below in detail.

The dextrin used in the present invention is not particularly limited as long as it is water-soluble, and may have any molecular weight. Specifically, a commercially available product name INDEX (Natio
nalStarch), Hygroplex HHG (Kurt Richter), Vegetens
OR (Wackherr) and the like.

The amount of dextrin is usually 0.1 to 20% by weight, preferably 0.5 to 15% by weight, based on the total amount of the pack in the pack cosmetic. If the amount is less than 0.1% by weight, the effect of removing the keratotic plug is not sufficient, and if it exceeds 20% by weight, stickiness may be felt and the feeling in use may be deteriorated.

The polymer compound used in the present invention is not particularly limited, but is preferably water-soluble. Moreover, you may mix | blend in the form of an emulsion.

Examples of the high molecular compound include natural compounds such as plant gums such as gum arabic, gum tragacanth, galactan, guar gum, carob gum, karaya gum, gellan gum, and carrageenan;
Microbial macromolecules such as dextran, succinoglucan, and burlan; and animal macromolecules such as collagen, casein, albumin, and gelatin.

Examples of semi-synthetic materials include starch-based polymers such as carboxymethyl starch and methylhydroxypropyl starch, methylcellulose, ethylcellulose, methylhydroxypropylcellulose, hydroxyethylcellulose, cellulose sodium sulfate, hydroxypropylcellulose and sodium carboxymethylcellulose. And cellulose-based polymers such as crystalline cellulose, and alginic acid-based polymers such as sodium alginate and propylene glycol alginate.

As synthetic compounds, for example, polyvinyl alcohol, polyvinyl acetate, polyvinyl methyl ether, polyvinyl pyrrolidone, copolymer of vinyl pyrrolidone and vinyl acetate, carboxyvinyl polymer,
Vinyl polymers such as alkyl-modified carboxyvinyl polymers, sodium polyacrylate, polyethyl acrylate, polyalkanolamine, alkyl (meth) acrylate and dimethylaminoethyl (meth)
Acrylic copolymers, acrylic polymers such as poly-2- (meth) acrylamide-2-methylpropanesulfonic acid, polymethacryloyloxytrimethylammonium, vinyl imidazolium methchloride-vinyl pyrrolidone copolymer, methyl vinyl imidazole-vinyl pyrrolidone Copolymer, vinylpyrrolidone-N, N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate.

Among these high molecular compounds, synthetic high molecular compounds are preferable because they have excellent keratotic plug removal effect and low irritation when peeled.

Preferred among the synthetic high molecular compounds are polyvinylpyrrolidone, an alkyl (meth) acrylate and dimethylaminoethyl methacrylate copolymer, poly-2- (meth) acrylamido-2-methylpropanesulfonic acid, polymethacryloyl. Oxytrimethylammonium and the like can be mentioned.

The molecular weight of the high molecular compound is 10,000 to 1
300,000 is preferable, and especially 40,000 to 500,000 is preferable. If the molecular weight is less than 10,000, the effect of removing the keratotic plug is insufficient, and if it exceeds 1.3 million, the synthesis may be difficult. These molecular weights represent the number average molecular weight.

The above-mentioned polymer compounds may be used singly or in combination of two or more. The compounding amount is usually 0.5 to 70% by weight, based on the total amount of the pack agent of the pack cosmetic. Particularly, 3 to 50% by weight is preferable. 0.5
If it is less than 10% by weight, the effect of removing the keratotic plug is not sufficient,
If the content is more than the percentage by weight, it may be difficult to produce a pack cosmetic.

When a powder is added to the pack component of the pack cosmetic of the present invention in addition to the above essential components, drying speeds up and the time until peeling can be shortened.

The powder used in the present invention is not particularly limited, and any shape, particle size and color tone may be used. For example, talc, kaolin, mica, sericite (sericite),
Muscovite, Phlogopite, Synthetic mica, Phlogopite, Biotite, Lithium mica, Permiculite, Magnesium carbonate, Calcium carbonate, Aluminum silicate, Barium silicate, Calcium silicate, Magnesium silicate, Strontium silicate, Metal tungstate , Magnesium, silica, zeolite, barium sulfate, calcined calcium sulfate, (calcined gypsum), calcium phosphate, fluoroapatite, hydroxyapatite, ceramic powder, metal soap (zinc myristate, calcium palmitate, aluminum stearate), boron nitride, etc. Inorganic powder, polyamide resin powder (nylon powder), polyethylene powder, polymethyl methacrylate powder, polystyrene powder, copolymer resin powder of styrene and acrylic acid, benzoguanamine resin powder, polytetrafluoroethylene Ren powder, organic powders such as cellulose powder, titanium dioxide, inorganic white pigments such as zinc oxide, iron oxide (red iron oxide), inorganic red pigments such as titanium acid iron, gamma
-Inorganic brown pigments such as iron oxide; inorganic yellow pigments such as yellow iron oxide and loess; inorganic black pigments such as black iron oxide, carbon black and low titanium oxide; and inorganic purple pigments such as mango violet and cobalt violet. Pigments, inorganic green pigments such as chromium oxide, chromium hydroxide, and cobalt titanate; inorganic blue pigments such as ultramarine and navy blue; titanium oxide coated mica; titanium oxide coated bismuth oxychloride; titanium oxide coated talc; and colored titanium oxide coated Pearl pigments such as mica, bismuth oxychloride, fish scale foil, metal powder pigments such as aluminum powder and copper powder, Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 220, Red No. 226, Red No. 228
No. 4, red No. 405, orange No. 203, orange No. 204, yellow No. 205, yellow No. 401 and blue No. 404, organic pigments such as Red No. 3, Red No. 104, Red No. 106, Red No. 22
7, zirconium such as Red No. 230, Red No. 401, Red No. 505, Orange No. 205, Yellow No. 4, Yellow No. 5, Yellow No. 202, Yellow No. 203, Green No. 3, and Blue No. 1,
Organic pigments such as barium or aluminum lake; natural pigments such as chlorophyll and β-carotene;

The amount of the powder used in the present invention is preferably 0.05 to 25% by weight, particularly preferably 0.1 to 20% by weight, based on the total amount of the pack agent of the pack cosmetic. If it is less than 0.05% by weight, the effect of removing the keratotic plug is not sufficiently improved, and if it exceeds 25% by weight, it may be difficult to produce a pack cosmetic.

[0025] In addition to the above-mentioned components, components used in general cosmetics, such as,
Propylene glycol, dipropylene glycol, 1,
3-butylene glycol, 1,4-butylene glycol, diethylene glycol, triethylene glycol,
Glycols such as polyethylene glycol of higher molecular weight, glycerin, diglycerin, polyglycerins of higher molecular weight, sorbitol, mannitol, maltitol, xylitol, sugar alcohols such as erythritol, fructose, glucose, galactose,
Sugars such as maltose, lactose and trehalose; avocado oil, camellia oil, turtle oil, macadamia nut oil,
Corn oil, mink oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, sasanqua oil, castor oil, linseed oil, safflower oil, cottonseed oil, eno oil, soybean oil, peanut oil, teaseed oil , Kaya oil, rice bran oil,
Shinagiri oil, Japanese kiri oil, jojoba oil, germ oil, glycerin trioctanoate, glycerin triisopalmitate,
Liquid oils and fats such as cetyl isooctanoate, isopropyl myristate, liquid paraffin, squalane, isoparaffin, methyl silicone, methyl phenyl silicone, cacao butter, coconut oil, horse fat, hydrogenated coconut oil, palm oil, tallow,
Sheep fat, hardened beef tallow, palm kernel oil, lard, beef tallow, mokuro kernel oil, hardened oil, beef tallow, mokuro, hardened castor oil, beeswax, candelilla wax, cotton wax, carnauba wax, bayberry wax, ibota wax, whale wax, Solid oils and waxes such as montan wax, bran wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugar cane wax, isopropyl lanolin fatty acid, hexyl laurate, reduced lanolin, jojoba wax, hard lanolin, shellac wax, ozokerite, petrolatum, microcrystalline wax; Surfactants such as sorbitan fatty acid ester, glycerin fatty acid ester, POE alkyl ether, POE hydrogenated castor oil, POE glycerin fatty acid ester, POE sorbitan fatty acid ester; UV absorbers, chelating agents, vitamins, Bacteriostat, antiphlogistic agents, preservatives, plant extracts such as a drug; a water-swellable clay mineral may be suitably added in amounts not detrimental to the effects of the present invention.

The poultice component of the sheet-shaped pack cosmetic of the present invention is as described above. In the present invention, the form of the sheet-shaped pack cosmetic having a sticking layer (poultice) is used in the present invention.
Thus, it is possible to provide a novel sheet-shaped pack cosmetic which has a high keratotic plug removing effect and does not cause pain when peeled off.

Specifically, the cataplasm of the pack cosmetic having the above-mentioned components is used as an aggregate of fibers such as nylon, polyester, polyethylene, polypropylene, polyurethane, cellulose, and other hydrophobic woven fabrics, non-woven fabrics, and knitted fabrics. It is preferable to apply it to an aggregate of fibers such as hydrophilic woven fabric, non-woven fabric and knitted fabric such as rayon, or paper, and to provide an adhesive layer on the aggregate to be used as a sheet-shaped pack cosmetic (pap preparation). In the most preferred embodiment of the present invention, a pack cosmetic (pack agent) having the above components is applied on a polyester film, and a polyester nonwoven fabric is laminated thereon as an adhesive layer, or is applied on an OPP film. 80% rayon, 20 polyolefin as the adhesive layer
% Is a sheet-shaped pack cosmetic laminated with a nonwoven fabric having a composition of 100%.

[0028]

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited to only these Examples. The compounding amount represents weight%. Further, the molecular weight of the polymer compound represents a number average molecular weight.

The sheet-shaped pack cosmetics shown in Tables 1 and 2 were produced by a conventional method, subjected to an actual use test, and evaluated by 20 female panels. After an appropriate amount of tap water was applied to the nose of the panel, a 3 x 7 cm square sheet-shaped pack cosmetic was adhered, and was peeled off after being left to dry. By this panel test, the keratotic plug-removing property, pain at the time of peeling, feeling in use, and drying property were evaluated according to the following criteria. The results are shown in Table 1 and Table 2 together.

"Evaluation Criteria" A: Eighteen or more out of 20 were judged to be good. Good: 15 to 17 out of 20 persons were judged to be good. B: 10 to 14 out of 20 persons were judged to be good. ×: Less than 10 out of 20 persons were judged to be good.

[0031]

[Table 1] Sheet pack cosmetics: Examples 1 to 5, Comparative Example 1 ------------------------------- ---------------------------------------- Comparative Example Example Example Example Example Example Example Component 1 1 2 3 4 5 ---------------------------------------- ------------------------------- A. Aqueous phase Ion-exchanged water 27.8 27.8 27.8 27.8 27.8 27.8 Glycerin 3.0 3.0 3.0 3.0 3.0 3.0 Dextrin 4.0 4.0 4.0 4.0 4.0 4.0 Powder phase Ion exchange water 10.0 10.0 10.0 10.0 10.0 10.0 Xanthan gum 0.1 0.1 0.1 0.1 0.1 0.1 Kaolin 3.0 3.0 3.0 3.0 3.0 3.0 Black iron oxide 1.0 1.0 1.0 1.0 1.0 1.0 Silica 0.5 0.5 0.5 0.5 0.5 0.5 C. Alcohol phase Ethyl alcohol 25.0 25.0 25.0 25.0 25.0 25.0 Polyvinylpyrrolidone (molecular weight 8000) 25.0-----(molecular weight 20,000)-25.0----(molecular weight 40,000)--25.0---(molecular weight 200,000)- --25.0--(Molecular weight 500,000)----25.0-(Molecular weight 1,000,000)-----25.0 Macatemia nut oil 0.5 0.5 0.5 0.5 0.5 0.5 Methyl alcohol 0.1 0.1 0.1 0.1 0.1 0.1 -------- -------------------------------------------------- ------------- ------------------------------------- ---------------------------------- Comparative Example Example Example Example Example Example Example Component 11 2 3 4 5 ---------------------------------------------- ------------------------- Square plug removal property △ ○ ◎ ◎ ◎ ◎ Pain at peeling ◎ ◎ ◎ ◎ ◎ ○ ) ◎ ◎ ◎ ◎ ◎ ◎ Drying ◎ ◎ ◎ ◎ ◎ ◎ ----------------- -------------------------------------------------- ----

[Preparation method] While the aqueous phase of A was dissolved by stirring,
A powder base was dispersed with a homomixer, and an alcohol phase dissolved in another kettle was further added, followed by uniform stirring and mixing to obtain a pack base. This pack base was uniformly applied on a polyester film by an applicator having a depth of 0.1 mm, and a polyester nonwoven fabric having a weight of 25 g / m2 2 and a gas permeability of 1.5 seconds was laminated thereon. Then, it was dried to obtain a sheet-like pack having a three-layer structure.

As is clear from the above results, if the molecular weight of the polymer compound is small, the effect of removing the keratotic plug is poor. The molecular weight of a suitable polymer compound is 20,000 to 1,000,000, and more preferably 40,000 to 500,000.

[0034]

[Table 2] Sheet-shaped pack cosmetics: Examples 6 to 14, Comparative Example 2 ------------------------------- ---------------------------------------- Comparative Example Example Example Example Example Example Example 2 6 7 8 9 10 ------------------------------------------ ----------------------------- A. Aqueous phase Deionized water 59.76 59.72 59.59 56.79 49.79 40.79 Sorpitol (70%) 3.0 3.0 3.0 3.0 3.0 3.0 Textrin 2.0 2.0 2.0 2.0 2.0 2.0 Polymethacryloyloxyethyl 15.0 15.0 15.0 15.0 15.0 15.0 Trimethylammonium chloride (Molecular weight 400,000) Powder phase Ion exchange water 10.0 10.0 10.0 10.0 10.0 10.0 Sodium metaphosphate 0.01 0.01 0.01 0.01 0.01 0.01 Titanium dioxide 0.03 0.07 0.2 3.0 10.0 23.0 Alcohol phase Ethyl alcohol 5.0 5.0 5.0 5.0 5.0 5.0 Polyvinylpyrrolidone 5.0 5.0 5.0 5.0 5.0 5.0 (Molecular weight 100,000) Hydamine E acetate 0.1 0.1 0.1 0.1 0.1 0.1 Methyl alcohol 0.1 0.1 0.1 0.1 0.1 0.1 ----------- -------------------------------------------------- ---------- Square plug removal ◎ ◎ ◎ ◎ ◎ ◎ Pain at peeling ◎ ◎ ◎ ◎ ◎ ◎ Feeling in use ◎ ◎ ◎ ◎ ◎ ◎ ◎ Drying △ ○ ◎ ◎ ◎ ◎ --- -------------------------------------------------- ------------------

[Production Method] A three-layered sheet-shaped pack cosmetic was obtained in the same manner as in Example 1 under the same conditions.

As is evident from the above results, blending the powder improves the drying property. However, the compounding amount of the powder was 0.
If it is less than 5% by weight, the effect of increasing the drying property is not sufficient, and 2
If it exceeds 5% by weight, it becomes difficult to produce a sheet pack. Therefore, a suitable amount of the powder is 0.05 to 25.
%, More preferably 0.1 to 20% by weight.

[0037]

According to the present invention, the keratin plugs and dirt formed in the pores are removed favorably to keep the skin in good condition.
In addition, it is possible to provide a sheet-shaped pack cosmetic that can be peeled off smoothly without damaging the skin.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masaaki Ishiwata 1050 Nippa-cho, Kohoku-ku, Yokohama-shi, Kanagawa Inside Shiseido Daiichi Research Center Co., Ltd. (72) Inventor Masanori Maekawa 3-12- Omori Nishi, Ota-ku, Tokyo 10 F term in J-Cosmetics Co., Ltd. (reference) 4C083 AA122 AB172 AB232 AB242 AB282 AB442 AC102 AC122 AC132 AC482 AD011 AD071 AD072 AD091 AD131 AD132 AD241 AD242 AD352 AD662 BB21 CC07 DD12 EE12 EE50 FF05

Claims (5)

[Claims] 1. A pack cosmetic comprising dextrin and a polymer compound, wherein the form is a sheet having an adhesive layer. 2. The sheet-shaped pack cosmetic according to claim 1, wherein the pack cosmetic is applied on a polyester film, and a hydrophobic or hydrophilic nonwoven fabric is laminated thereon as an adhesive layer. 3. The sheet-shaped pack cosmetic according to claim 1, wherein the pack cosmetic further contains a powder. 4. The polymer compound comprises polyvinylpyrrolidone, an alkyl (meth) acrylate and dimethylaminoethyl (meth) acrylate copolymer, poly-2-acrylamido-2-methylpropanesulfonic acid, and polymethacryloyloxytrimethylammonium. The sheet-shaped pack cosmetic according to claim 1, 2 or 3, which is one or more polymer compounds selected from the group. 5. The polymer compound having a molecular weight of 40,000 to 5
5. The method according to claim 1, wherein the number is 10,000.
The sheet pack cosmetic according to the above.