JPH10279429A - Cosmetic impregnated in nonwoven fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject cosmetic excellent in feeling when used and high in moisturizing effect by impregnating a nonwoven fabric with a cosmetic composition containing a water-soluble polymer and a polyhydric alcohol so as not to cause its drippings from the nonwoven fabric. SOLUTION: First, (A) a cosmetic composition 10-1,000 cp in viscosity at 30 deg.C is prepared by formulating (i) 0.001-10 wt.% of a water-soluble polymer [pref. carboxyvinyl polymer, carboxymethylcellulose salt, cellulose derivative (salt), alginic acid salt, carrageenan, polyvinylpyrrolidone], (ii) 0.01-50 wt.% of a polyhydric alcohol [pref. glycerol, 1,3-butylene glycol, (di)propylene glycol, polyethylene glycol, sorbitol, 1,2-pentanediol, mabit], and (iii) as necessary, a surfactant, moisturizer, oil, perfume, antiseptic, antioxidant, medicinal agent, water, etc. The objective cosmetic is obtained by impregnating (B) a nonwoven fabric with the component A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-woven fabric impregnated cosmetic used as a sheet pack cosmetic and the like, and more particularly, to a non-woven fabric impregnated cosmetic having a high moisturizing effect without dripping from the non-woven fabric.

[0002]

2. Description of the Related Art Conventionally, nonwoven fabric impregnated cosmetics have been frequently used as, for example, sheet pack cosmetics. The sheet pack cosmetic has a high occlusion effect and can be used not only on the entire face and partly, but also easily on rough areas such as the neck, shoulders, arms, and legs. It has an important role in maintaining the health and beauty of the skin because it has an effect of giving skin smoothness and other effects.

[0003] Nonwoven fabric impregnated cosmetics are prepared by impregnating a nonwoven fabric with a lotion and, when used, must be in close contact with the skin for a certain period of time. At this time, the lotion may drop from the non-woven fabric depending on the amount of the liquid, and if the amount of the liquid is reduced so as not to drip, there is a problem that a feeling of close contact cannot be obtained.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a nonwoven fabric impregnated cosmetic composition which is free from dripping from a nonwoven fabric, has excellent usability, and has a high moisturizing effect.

[0005]

Means for Solving the Problems The inventors of the present invention have made intensive studies to solve the above-mentioned problems, and as a result, have impregnated a nonwoven fabric with a cosmetic composition containing a water-soluble polymer and a polyhydric alcohol. The inventors have found that the above-mentioned problems can be solved, and have completed the present invention.

[0006] That is, the present invention relates to a nonwoven fabric-impregnated cosmetic obtained by impregnating a nonwoven fabric with a cosmetic composition containing a water-soluble polymer and a polyhydric alcohol as main components.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.

The nonwoven fabric-impregnated cosmetic of the present invention is obtained by impregnating a nonwoven fabric with a cosmetic composition containing a water-soluble polymer and a polyhydric alcohol as main components.

The water-soluble polymer used in the present invention may be any one which can be generally used for cosmetics.
Any of a natural water-soluble polymer, a semi-synthetic water-soluble polymer, a synthetic water-soluble polymer, and the like may be used.

Examples of natural water-soluble polymers include guar gum, locust bingham, quince seed, carrageenan, galactan, gum arabic, tragacanth gum,
Pectin, mannan, starch, xanthan gum, dextran, succinoglucan, curdlan, hyaluronic acid, gelatin, casein, albumin, collagen and the like. Among these, carrageenan, xanthan gum and the like are preferably used in terms of usability and the like.

The semi-synthetic water-soluble polymer includes, for example, cellulosic polymers such as methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose or salts thereof (eg, sodium salt, potassium salt, etc.) and methylhydroxypropylcellulose. Starch-based polymers such as soluble starch, carboxymethyl starch, and methyl starch; alginic acid-based polymers such as alginic acid propylene glycol ester and alginates; polysaccharide-based derivatives; Of these, alginates, hydroxypropylcellulose, carboxymethylcellulose and the like are preferably used in terms of usability and the like.

Examples of the synthetic water-soluble polymer include polyvinyl alcohol, polyvinyl pyrrolidone, polyvinyl methyl ether, carboxyvinyl polymer, sodium polyacrylate, polyethylene oxide, and ethylene oxide-propylene oxide block copolymer. Among them, carboxyvinyl polymer, polyvinylpyrrolidone and the like are preferably used in terms of usability and the like.

In the present invention, polyvinyl alcohol, gum arabic, polyvinyl pyrrolidone, and carboxyvinyl polymer having high film-forming ability and adhesiveness (for example, "Carbopol 934" and "Carbopol 940" manufactured by BF Goodrich Co., Ltd.) , "Carbopol 941", etc.), hydroxypropylcellulose (e.g., "HPC-M" of Nippon Soda Co., Ltd.), methylcellulose ("Metroze" of Shin-Etsu Chemical Co., Ltd.) and the like are particularly preferably used. Can be

These water-soluble polymers may be used alone or in combination of two or more.

The amount of the water-soluble polymer is preferably 0.001 to 10% by weight, more preferably 0.05 to 5% by weight, based on the total amount of the cosmetic composition impregnated in the nonwoven fabric.
It is. If the amount is less than 0.001% by weight, the prevention of sagging will not be sufficiently exhibited, while if it is more than 10% by weight, the solubility will decrease and the impregnation of the nonwoven fabric tends to be difficult, which is not preferable.

Specific examples of the polyhydric alcohol used in the present invention include glycerin, dynamite glycerin,
1,3-butylene glycol, propylene glycol,
Dipropylene glycol, sorbitol, xylitol, ethylene glycol, diethylene glycol, diglycerin, polyethylene glycol, polyglycerin,
Examples thereof include polyethylene glycol monoethyl ether, diethylene glycol monoethyl ether, ethylene glycol dimethyl ether, 1,2-pentanediol, hexylene glycol, and mavit. Among these, glycerin, from the viewpoint of usability, moisturizing effect, etc.
1,3-butylene glycol, propylene glycol,
Dipropylene glycol, polyethylene glycol, sorbitol 1,2-pentanediol, hexylene glycol, mavit and the like are particularly preferably used.

These polyhydric alcohols may be used alone or in combination of two or more.

The amount of the polyhydric alcohol is preferably 0.01 to 50% by weight, more preferably 0.05 to 30% by weight, based on the total amount of the cosmetic composition impregnated in the nonwoven fabric. If it is less than 0.01% by weight, the moisturizing effect is not sufficiently exhibited, while if it is more than 50% by weight, although the moisturizing effect is improved, it tends to have a sticky feeling of use, which is not preferable.

The cosmetic composition containing the above components has a viscosity at 30 ° C. of 10 to 1000 cp from the viewpoint of preventing dripping.
s, more preferably 30 to 500 c
ps.

In the cosmetic composition impregnated in the nonwoven fabric,
In addition to the above essential components, qualitative and quantitative ranges that do not impair the effects of the present invention, as needed, surfactants, moisturizers, oils, fragrances, preservatives, antioxidants usually used in cosmetics , A chelating agent, a drug, water and the like.

In the present invention, the nonwoven fabric is impregnated with the cosmetic composition containing the above components, and the impregnation method and the like can be performed by known means. Further, as the nonwoven fabric, those conventionally used in nonwoven fabric impregnated cosmetics can be optionally used.

[0022]

Next, the present invention will be described in more detail by way of examples. Suruga, The present invention is not limited by these examples. In addition, all compounding amounts are weight%.

Prior to the examples, test methods and evaluation methods used in the present example will be described.

[Evaluation of Usability] For each of the female panels (10 persons), each sample (non-woven fabric impregnated cosmetic) having the composition shown in Table 1 below was applied to the face for 10 minutes, and was used. The overall feeling of moist use was evaluated. Evaluation ◎: 8 or more out of 10 respondents are good ○: 6 to 7 out of 10 respondents are good △: 4 to 5 of 10 respondents are good ×: 3 or less are good Answer.

[Evaluation of Moisturizing Property] For each of the female panels (10 persons), each sample (non-woven fabric impregnated cosmetic) having the composition shown in Table 1 was actually applied to the face for 10 minutes and used. The skin conductance of the face (the coated part of the non-woven fabric impregnated cosmetic material) was measured one hour after use.
The moisture retention was evaluated from the change rate (%) of the conductance shown in FIG.

The rate of change of skin conductance (%)
Reflects the effect of the use of non-woven fabric impregnated cosmetics on the water absorption and moisture retention capacity of the stratum corneum, and when the rate of change is large, the water content of the stratum corneum is reduced, and so on. Means poor moisture retention.

[0027]

[Equation 1] Conductance change rate (%) = (Conductance after treatment / Conductance before treatment) × 100 Evaluation ：: Conductance change rate is 0.7 or more and 1.0 or less Δ: Conductance change rate is 0.3 or more and 0.7 or less Less than ×: Conductance change rate is less than 0.3.

(Examples 1 and 2) A lotion having the formulation shown in the following Table 1 was prepared, and 1 g of the lotion was impregnated into a nonwoven fabric (100% cotton, 30 g / cm ² basis weight) and applied to the face. , Usability and moisture retention were evaluated.

[0029]

[Table 1] Table 1 (Manufacturing method) Raw materials are added to purified water and dissolved by stirring. However, xanthan gum is added to purified water after wetting with glycerin.

As is clear from the results in Table 1, the product of the present invention did not sag as compared with the comparative product, and was extremely excellent in both usability and moisturizing effect.

[0031]

As described in detail above, according to the present invention,
Provided is a nonwoven fabric impregnated cosmetic that does not sag, is excellent in usability and moisturizing effect, and can contribute to maintaining beautiful skin.

Claims (6)

[Claims] 1. A non-woven fabric impregnated cosmetic comprising a non-woven fabric impregnated with a cosmetic composition containing a water-soluble polymer and a polyhydric alcohol as main components. 2. The water-soluble polymer is one or more selected from carboxyvinyl polymers, carboxymethylcellulose salts, cellulose derivatives or salts thereof, alginate, carrageenan, polyvinylpyrrolidone, and xanthan gum. The nonwoven fabric impregnated cosmetic according to the above. 3. The polyhydric alcohol is glycerin, 1,3-
The nonwoven fabric impregnation according to claim 1 or 2, wherein the nonwoven fabric is at least one selected from butylene glycol, propylene glycol, dipropylene glycol, polyethylene glycol, sorbitol, 1,2-pentanediol, hexylene glycol, and mavit. Cosmetics. 4. The nonwoven fabric impregnated nonwoven fabric according to any one of claims 1 to 3, wherein 0.001 to 10% by weight of a water-soluble polymer is incorporated in the total amount of the cosmetic composition. 5. The nonwoven fabric impregnated nonwoven fabric according to any one of claims 1 to 4, wherein the polyhydric alcohol is blended in an amount of 0.01 to 50% by weight based on the total amount of the cosmetic composition. 6. The cosmetic composition has a viscosity of 10 to 1000 c.
The nonwoven fabric impregnated nonwoven fabric according to any one of claims 1 to 5, which has a ps (30 ° C).