JP4141488B2 - Cosmetic pack sheet and beauty method using the same - Google Patents

Description

The present invention relates to a cosmetic pack sheet that retains lotion, emulsion, essence, cream, oil, paste, and the like, and a cosmetic method using the same .

  The cosmetic pack sheet can easily care for the skin, and the action of applying and peeling provides a psychological relaxation effect, and a positive effect can be expected from both short-term and long-term viewpoints. Therefore, it has become one of the major areas of the skincare market, and further development is highly expected.

In terms of dosage form, a gel type in which a hydrophilic gel body is laminated on a support such as a non-woven fabric, and a retention type in which a non-woven fabric or other support body is impregnated and retained with lotion, emulsion, essence, cream, oil, paste, etc. It is. The former is inferior to the skin, but the latter is less occlusive, while the latter is less occlusive, while the latter is currently the mainstream in the market because of the component's skin migration, its feel and cost. It is.

And many improvement goods are marketed with respect to various problems, and many proposals are made | formed by the patent document etc. regarding improvement and improvement. However, there is no proposal for a comprehensive solution in any case. Major problems at present include effects, feeling of use, side effects, convenience, cost, component stability, and the like.

(Effects) Currently commercially available products include low-viscosity smooth hydrophilic holding types, high-viscosity type hydrophilic holding types, oily holding types, and sheet-like gel types. In addition, there are for dry skin and oily skin, but there are differences in oiliness and wetness depending on the part of the face and also in the same person such as T zone, and the individual difference is larger. There are so many different types of products that it is impossible to respond properly. As a result, many users have experienced unsatisfactory use feelings such as eczema and side effects such as rash and itching and irritation due to this mismatch. This seems to include the influence of formulation design using strong emulsification to maintain the uniformity of product components and stability over time.

(Usage feeling and side effects) There are problems such as insufficient adhesion, the above side effects and unpleasant feeling of use. Basically, it is impossible to cover a face with unevenness and the like with a single sheet.

(Regarding cost) The current commercial price is divided into a normal product of 100 to 500 yen and a luxury product of 1000 to 5000 yen or more per batch. As a more recent trend, this type of product is shifting from non-regular products to regular products, and it is expected that the market will require further price reduction and simplification in the future. .

  Among the above-mentioned problems, as a proposal for the effect, (A) a proposal to enhance the effect by laminating a synthetic film or the like on a nonwoven fabric or the like to make it occluded (for example, Patent Documents 1 to 5), ( B) Proposals (for example, Patent Documents 6 to 11) for improving the blocking property and adhesion by using a new material and enhancing the effect thereof (C) Oil-based holding sheets (for example, Patent Documents 12 and 13) and so on. However, with regard to (A), the obstructive effect is excellent, but there is a concern that the adhesion performance is rather deteriorated. In the case of (B), it is considered that the adhesion is extremely excellent, but the handleability is extremely poor because of flexibility, and the most serious problem is the retention of components and the cost thereof. This type of product is a very small field from the viewpoint of the amount of raw materials used in all industries. Therefore, when the raw material is used in other industries, it is generally available at a relatively low cost. However, in cases where the raw material is not, it is often impossible to expect a low cost. In the case of (C), operations such as improvement of water retention of the skin in advance and subsequent wiping are complicated. Furthermore, in any case, it is impossible to cope with the above-mentioned part difference, time difference, individual difference and the like. Next, there is no direct suggestion regarding problems such as feeling of use, adhesion, and cost. As proposals relating to simplicity and stability (for example, Patent Documents 14 to 16), the contained water is separated, stored in a dry state, and restored by supplying water immediately before use. Therefore, it raises a new problem of the appropriate supply of water. Therefore, for the reasons described above, the actual situation is that not only a solution but also an improved product is not commercially available.

JP 2005-281232 A JP 2005-2111425 A JP 2000-119129 A JP-A-11-228344 Japanese Utility Model Publication No. 60-134403 Japanese Patent Laying-Open No. 2005-213176 Japanese Patent Laid-Open No. 2003-300852 JP-A-6-65048 Japanese Patent Laid-Open No. 4-95015 JP-A-4-54108 JP-A-4-54107 JP-A-62-61910 JP 2001-233756 A JP 2006-263377 A JP 2006-249030 A JP 2006-56804 A

Originally, one of the major objectives of the foundation cosmetics, Ru der to compensate for the shortage of components required for normal activity of the skin. To compensate the shortage, from the supplied components, those that require the selection of the skin side, Ru is ideally der incorporated only amount required. It is a free choice, and uniform ingredients such as creams, milky lotions, lotions, etc. are forced to the skin side, without considering individual differences and facial part differences, and changes due to time, timing, physical condition, etc. Many commercial cosmetics that produce push-in, fake healthy skin, and beautiful skin deviate from the above principles, and of course do not fall into finished cosmetics and are therefore considered to belong to the pharmaceutical field. Those falling pharmaceuticals regions, of course the method used, shall analogous thereto also period.
However, reality free method of use, ie, Ru Nodea that has been used cosmetically. As a result, unnecessary or unnecessary amounts of components penetrated into the skin and adhered to the skin, causing various skin troubles (side effects such as eczema and skin irritation or stickiness). It is.

Many cosmetics use surfactants that have a strong emulsifying power from the viewpoint of the stability of the product over time, which measures the penetration and adhesion of ingredients and maintains the uniformity of the ingredients, making it easy Is not separated. Therefore, ing to selectively inhibit uptake of the skin side.

On the other hand, the packs are a method in which components are brought into contact with the skin for a predetermined time, and during that time, the selective components are taken up on the skin side, and the remainder is physically removed. If you look from this point of view, pack such is ideal as a basic cosmetics, Ru why der whose existence value is evaluated.

However, as described in the above [0008], such packs have also been raised with problems such as enhanced effect, improved feeling of use, improved adhesion, and inexpensive appropriate price.
As a result of various examinations, as a means for solving the above-mentioned problems, it has been found that it is appropriate to use the holding type by layering it partially or entirely during use.

The cosmetic pack sheet of the first invention is a cosmetic pack sheet comprising a basic pack sheet and a multi-layer pack sheet installed on the skin surface side of the basic pack sheet, both of the basic pack sheet and the multi-layer pack sheet. The holding layer and the liquid or semi-solid cosmetic held in the holding layer, the cosmetic held in the holding layer of the basic pack sheet is hydrophilic, and at least a part of the multi-layer pack sheet Is characterized in that the cosmetics retained on it are lipophilic.
The cosmetic pack sheet of the second invention is characterized in that, in the first invention, each cosmetic material retained in the retaining layer of the cosmetic pack sheet does not substantially contain a surfactant.
The cosmetic method according to the third aspect of the present invention is the basic method in which the multi-layered pack sheet in which the lipophilic cosmetic material in the cosmetic pack sheet according to claim 1 is retained is used as the skin surface side, and the hydrophilic cosmetic material is retained thereon. It is characterized by using a pack sheet in piles at the time of use.

According to the first invention, the following effects are obtained.
a) Adhesion can be directly improved by using the partial pack sheet for multi-layer. In other words, if a pack sheet for a soft material such as absorbent cotton is used for necessary parts such as the periphery of the eyes, nose, nose tip, nose periphery, and mouth periphery, the adhesion is improved, and as a result, the movement of the components is promoted. can do.
b) By using a hydrophilic sheet and an oleophilic sheet at the time of use, each component is selectively transferred to the skin, where an appropriate balance between moisture and oil is important, and is also sticky. And can prevent skin irritation.
c) By overlaying a hydrophilic sheet and an oleophilic sheet, the degree of improvement in the effect of moisturizing and the like exceeds the case of covering with an occlusive substrate such as a synthetic resin film.
According to the second invention, since the surfactant is not present, the selective uptake of the cosmetic can be performed more smoothly.
According to the third invention, by using the basic pack sheet and the multi-layer pack sheet, suitable new oily and hydrophilic cosmetics can be selectively taken into different parts of the skin quality, and skin irritation and the like can be performed. It is possible to prevent it from happening.

The advantages of the cosmetic pack sheet of the present invention are as follows.
a) With regard to adhesion, it is sufficiently effective to use a single-layered or laminated pack sheet of soft material such as absorbent cotton on the necessary parts such as the periphery of the eyes, nose, nose tip, nose periphery, and mouth periphery. It is. As for the effect, if the liquid-impermeable base material layer is used to increase the occlusion, the limited pack usage time and the component transferability will be further enhanced, and the effect will be enhanced within the range of selective uptake. The resulting poor adhesion can be solved by using a multi-layer pack sheet.
b) Correspondence to different skin quality was solved by using a multi-layer pack sheet holding cosmetics having a composition different from the cosmetics held by the basic pack sheet. That is, in respect feeling and side effects, constitute a hydrophilic support layer and a lipophilic holding layer, and was resolved by use when overlaid using respective retaining layer. Further, it has been found that, by separating and holding, there are also effects that exceed the case of using the occlusive substrate, such as a moisturizing effect enhancement. Usually, these two different properties are emulsified and used, but in that case, it becomes uniform, does not separate when attached to the skin, and is not retained, so the supply amount is not controlled, eventually stickiness, skin It becomes a factor such as stimulation. Moreover, when used without emulsification, naturally oil separation and uneven distribution occur, and this also causes stickiness and skin irritation which are different from the above. By superposing the hydrophilic pack sheet and the lipophilic pack sheet, each component is appropriately moved to the skin side within a range that does not cause stickiness and skin irritation while being held in each holding layer. The ratio is naturally considered to be based on selective uptake on the skin side. When the skin retains moderate moisture, it can selectively retain moderate oil. That is, an appropriate balance between moisture and oil is important. If dry skin is supplemented with more oil than necessary, the skin must accept a lot of fatigue to eliminate it, and if not, it can cause various skin problems. is there. That is, a condition for selective capture is necessary. Satisfying this is the layering method according to the present invention in which the hydrophilic pack sheet and the lipophilic pack sheet are layered for a certain period of time in a holding state in which the components can move to the skin surface.
c) The presence of the surfactant is considered to be a negative factor for the selective uptake to proceed smoothly, but this was also confirmed as a result of the use test.

DESCRIPTION粧用packed sheet of the present invention will be described in detail.
The retaining layer retains hydrophilic or lipophilic cosmetics, and is used for the purpose of releasing the cosmetics on the human skin at the time of use and exhibiting the cosmetic effects. Specific examples include paper, cloth, non-woven fabric, woven fabric, towel, blanket, knitted fabric, quilt, and absorbent cotton, and these may be used as a single layer or a laminate. In particular, absorbent cotton is excellent in flexibility, release, retention, etc., and is most preferable as a retention layer. Furthermore, you may laminate | stack a film-form or sheet-form base material layer in order to provide at least one among obstruction | occlusion property, interruption | blocking property, and supportability as needed. Further, it is also possible to configure the multi-layered pack sheet only by this base material layer, or the base material layer and the adhesive layer described in [0021] , and to partially provide the blocking property and / or the blocking property.

  Examples of liquid or semi-solid cosmetics include cosmetics in the form of liquids, lotions, creams, emulsions, oils, pastes, and the like. Moreover, the component should just be accept | permitted as cosmetics.

  Film or sheet base material layers include polyethylene, polypropylene, polyamide, polyester, polyurethane, ethylene-vinyl acetate copolymer, polyvinyl chloride, polybutadiene, cellophane, polychloroprene, polyamino acid, nitrile rubber, butyl rubber or silicone. A thin film or sheet formed of a synthetic resin such as rubber or other natural resin can be used. Further, if necessary, foaming treatment, perforation, water repellency, oil repellency treatment, uneven processing, slit processing, and the like may be performed. A urethane film is excellent in flexibility, and is most preferable as a base material layer. Furthermore, the base material layer and the holding layer may be bonded or fused entirely or partially.

  Examples of water repellency and oil repellency treatment include paraffin treatment, silicon treatment, and fluororesin treatment. This is because when the palm is pressed down or pulled up, the palm and the base material layer can be smoothly peeled off. When peeling is heavy, the skin and the holding layer are peeled off, resulting in a decrease in adhesion.

  As the adhesive, any adhesive may be used as long as it does not interfere with use other than vinyl acetate, acrylic, polyvinyl alcohol, and the like. If necessary, an aqueous pressure-sensitive adhesive such as starch can also be used. The water-based pressure-sensitive adhesive can be used when the adhesion between the base material layer and the holding layer is good. In this case, the water-based pressure-sensitive adhesive dissolves in the water-based cosmetic, and as a result, the degree of freedom of both layers increases and the pack The flexibility of the entire sheet is improved. Moreover, partial adhesion and fusion contribute to improvement in flexibility. The fusion includes an extrusion lamination method.

  Concavity and convexity processing of the base material layer is performed by hot embossing, film forming processing, or the like. The purpose of this is to lighten the peeling of the palm and the base material layer in the same manner as water repellent and oil repellent processing.

  The slit processing is to cut only the base material layer, and this purpose is also to improve the flexibility of the entire pack sheet.

  In the closed type, the holding layer may be divided into a plurality of layers. This improves the flexibility of the entire pack sheet and particularly the adhesion of the holding layer.

  A lump, rod, net, or the like may be adhered and / or included in the holding layer. The purpose is to give a moderate physical stimulus to the skin to obtain a massage effect. Examples thereof include those formed into the above shape using materials such as fiber, paper, cloth, nonwoven fabric, synthetic resin, and natural resin.

As the shape, there are conceivable ones for the whole surface and for a part. For the whole surface, there are a full face type, a combination type of the upper half and the lower half, and the like. Examples of the portion include those for about 100 cm ² or less, such as for nose, mouth, for corner of eye, for cheek, and free size that is cut into an appropriate size for use .

(Use test)
The results of a comparison test with each use of the hydrophilic pack sheet and the lipophilic pack sheet are shown below. Tester: Age 20-50 having normal skin with no functional abnormalities on the face and no abnormalities such as symptoms, deficiencies, deformations, etc. that are judged as skin diseases beyond the range of skin quality that cosmetics can handle Twenty-year-old girls were used as examiners.
Sample: was used in Example 1及 beauty Comparative Example 1-5.

Test method: After washing the face, test using a specified pack sheet for 15 minutes before going to bed, in use (adhesion, side effects), after 1 hour of removal (moisturization, stickiness, side effects) and at the next morning when waking up (moisturization) Check each item three times (status and side effects). On the first week and on the first day, first, one sheet of the specimen 1b is placed on the right half of the face, and half of the specimen 1a is overlaid thereon. Next, the half of the specimen 4 is stuck on the left half. On the first week and the third day, the same procedure is performed on the left and right sides of the sample as in the first day. Similarly, in the second week, the samples (1a, 1b) and (3a, 3b), the third week in the samples (3a, 3b) and (5), the fourth week in the samples (2) and (4), the second Five weeks will be held for (1a, 1b) and (6). In addition, after face washing, cosmetics other than the specimen shall not be used on the face until the next morning confirmation is completed.
Evaluation: Figures in parentheses are the evaluation score, the evaluation score of the left half of the face and the evaluation of the right half of the same sample, and further evaluated by the combined value of the 20 persons.
A. Moisturizing condition of the skin after use (In this test, evaluation was made taking into account the limited use of the multi-layer partial pack sheet)
・ Great improvement (3)
・ Improvement (2)
・ Slightly improved (1)
・ No change (0)
・ Deterioration (0, evaluated in terms of side effects)
B. About degree of skin stickiness after use ・ There is a strong sticky feeling. (3)
・ There is a sticky feeling. (2)
・ Slightly sticky. (1)
・ There is almost no stickiness. (0)
C. Presence or absence of unpleasant symptoms such as itching, irritation, and dryness, and side effects such as eczema and rash during and after use ・ There are particularly strong symptoms. (3)
・ There are strong symptoms. (2)
・ Slightly symptomatic. (1)
·Absent. (0)
D. Adhesion • Very good. (3)
·good. (2)
・ Slightly good. (1)
·Not good. (0)

Test results: shown in the table below.

Discussion:
A. The use of multiple layers of lipophilic pack sheet and hydrophilic pack sheet clearly has a significant effect on improving the moisture retention state compared to the single use of them, and at the same time it is extremely effective in improving stickiness and adhesion. found. Furthermore, there are very few side effects, and the reduction effect is considered to be extremely large.
B. The effect of improving the adhesion of the partial pack sheet for multi-layer is extremely remarkable. It is also effective for improving moisturizing conditions.
C. By applying the multi-layer partial pack sheet only to the skin quality that requires oil, the effect on the moisturizing state was maintained, and a significant improvement in adhesion, stickiness, and side effects could be confirmed.
D. The use of a lipophilic pack sheet alone did not give good results for any of the effects, feeling of use, and side effects.

  Hereinafter, embodiments of the present invention will be described in detail. However, the present invention is not limited to this embodiment.

Using a non-woven fabric (cotton, basis weight 40 g / m ² ) as a holding layer, one sheet for a predetermined face (length and width 25 × 24 cm) is manufactured, and hydrophilic cosmetic A (no oil added) is impregnated with 25 g / sheet. After that, it is packaged to form a basic pack sheet 1a. Next, using a non-woven fabric (cotton, basis weight 30 g / m ² ) as a retaining layer, two sheets for cheeks (length 6 × 7 cm, cheek type) are manufactured and impregnated with lipophilic cosmetic F 1.5 g / sheet. After that, it is packaged to obtain a multi-layered pack sheet 1b.

(Comparative Example 1)
Using a non-woven fabric (cotton, basis weight 40 g / m ² ) as a retaining layer, one sheet for a predetermined face (vertical and horizontal 25 × 24 cm), then two for the corner of the eye (vertical and horizontal 6 × 7 cm, corner of the corner) is manufactured. A total of three sheets of hydrophilic cosmetic A are impregnated with 30 g, and then packaged to obtain a cosmetic pack sheet 2.

(Comparative Example 2)
Using a nonwoven fabric (cotton, basis weight 40 g / m ² ) as a holding layer, one sheet for a predetermined face (length and width 25 × 24 cm) is manufactured, impregnated with 25 g / sheet of hydrophilic cosmetic A, and then packaged. Basic pack sheet 3a. Next, using a non-woven fabric (cotton, basis weight 40 g / m ² ) as a retaining layer, ^two cheek pieces (length and width 6 × 7 cm, cheek type) were produced, and hydrophilic cosmetic B (oil added) was 2 g / sheet. After impregnating, it is packaged to form a multi-layer pack sheet 3b.

(Comparative Example 3)
Using a nonwoven fabric (cotton, basis weight 40 g / m ² ) as a holding layer, one sheet for a predetermined face (length and width 25 × 24 cm) is manufactured, impregnated with 25 g / sheet of hydrophilic cosmetic A, and then packaged. The cosmetic pack sheet 4 is used.

(Comparative Example 4)
Using a non-woven fabric (cotton, basis weight 40 g / m ² ) as a holding layer, one sheet for a predetermined face (length and width 25 × 24 cm) is manufactured, impregnated with 25 g / sheet of hydrophilic cosmetic B, and then packaged. The cosmetic pack sheet 5 is used.

(Comparative Example 5)
Using a non-woven fabric (cotton, basis weight 30 g / m ² ) as a holding layer, one sheet for a predetermined face (length and width 25 × 24 cm) is manufactured, impregnated with 15 g / sheet of lipophilic cosmetic F, and then packaged. The cosmetic pack sheet 6 is used.

(Cosmetic composition)
Hydrophilic cosmetics A hydrophilic cosmetics B lipophilic cosmetics F
・ Purified water 91.7 89.2
・ BG 3 3
・ Glycerin 3 3
・ Silicon oil 0.2
・ Squalane 0.3 10
・ Trioctanoin 1.5 40
・ Olive oil 48.8
・ Trehalose 1 1
・ Xanthan gum 0.2 0.2
・ PEG-60 hydrogenated castor oil 0.5
・ Aloe extract 0.3 0.3
・ Liquorice extract 0.3 0.3
・ Touki extract 0.3 0.3
・ Vitamin E 1
・ BHT 0.2
・ Methylparaben 0.15 0.15
・ Propylparaben 0.05 0.05
unit:%

Claims (3)

A cosmetic pack sheet made of layered packs seat to be installed based on the pack sheet and this skin surface,
Each of the basic pack sheet and the multi-layer pack sheet has a holding layer and a liquid or semi-solid cosmetic held by the holding layer,
The cosmetic material held in the holding layer of the basic pack sheet is hydrophilic, and at least a part of the multi-layer pack sheet is lipophilic in the cosmetic material held therein. Packing sheet for makeup . Cosmetic pack sheet according to claim 1, wherein the respective cosmetic held by the holding layer of the cosmetic pack sheet is substantially free of surfactant. And the claim 1 layer pack sheet cosmetic of the lipophilic held in cosmetic pack sheet according to the skin surface, sleep heavy basic pack sheet hydrophilic cosmetic is held thereon in use A cosmetic method characterized by using .