JPH0662384B2 - Double eyelid forming treatment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a double eyelid forming treatment agent used for cosmetics and simple cosmetic molding.

<Prior art> Conventionally, as a method for making a single eyelid look like a double eyelid, a method of drawing a thin black line on the upper eyelid so as to correspond to the fold portion of the double eyelid was used, but at a short distance. Others who saw it could easily discriminate that the line was drawn, so it was necessary to use a large amount of cosmetics of multiple colors and to work as if drawing the double-folded folds on the eyelids. .

Recently, the thickness of the lower edge of the upper eyelid is about 1 to 2 mm
A few tens of μ) tape is applied, and the difference in hardness and elasticity between the part where the tape is applied and the part where it is not applied is used to make a double eyelid, or the rubber latex is made several mm wide on the upper eyelid. After applying and drying, there is a method in which a rubber latex dry coating is pressed by a member having a narrow tip and the folds are forcibly formed and held by the self-adhesiveness of the rubber latex dry coating to form a double eyelid.

<Problems to be Solved by the Invention> However, the above-mentioned methods have their respective drawbacks.

That is, the method of attaching an extremely thin tape having a narrow width to the lower edge of the upper eyelid is extremely difficult to attach the tape to a predetermined position.

Further, in order to manufacture the ultra-thin tape used in this method, a special manufacturing technique is required, which is extremely expensive.

On the other hand, the method of forcibly forming the fold portion after forming the dry coating of the rubber latex is because the dry coating of the rubber latex is surface-bonded with a width of several mm to form the fold portion. The folds appeared to be shallow, with a clear difference from the natural double eyelids.

Further, the wider the surface-adhered portion of the dry coating of rubber latex, the more uncomfortable the eyelid will catch, especially when the eyes are closed.

<Means for Solving the Problems> The present invention has been proposed in view of the above, and is made by mixing a rubber latex with a synthetic resin selected from an acrylic resin, a urethane resin, or a vinyl resin. A treatment agent that forms a double eyelid by applying it to the lower edge of the eyelid and drying it, and 85 to 50 wt% of the rubber latex, an acrylic resin, a urethane resin, or a synthetic resin selected from a vinyl resin. It is characterized by being mixed at a ratio of 15 to 50% by weight.

The rubber latex used in the treatment agent of the present invention described above does not exceed the legal limit standard for harmful substances to the human body and environment, and for example, LA latex of JIS K 6381 (total alkali content is 0.8% or less) is used. To be

Further, the synthetic resin used in the treatment agent of the present invention is improved in the drying property of the above-mentioned rubber latex, and is improved in water resistance and sweat resistance (physiological saline resistance) as a dry coating film physical property, and is supplemented with hardness. Is added for the purpose. As such a synthetic resin, a resin having good compatibility with the above-mentioned rubber latex, a minimum film forming temperature of 20 ° C. or less, and good water resistance and sweat resistance may be used. Can be, but is not particularly limited, for example, emulsion type commercially available acrylic resin, or urethane resin, or vinyl chloride, styrene resin whose solid content is 38 to 55% by weight as shown in Examples described later. Use vinyl resin such as vinyl acetate resin.

The treating agent of the present invention is a mixture of rubber latex and a predetermined synthetic resin as described above, and the mixing ratio thereof is 85 to 50% by weight of rubber latex and 15 to 50% by weight of synthetic resin. If the ratio of the rubber latex is less than 50%, the elasticity and elongation peculiar to the rubber will decrease, which is not preferable.

In order to form a double eyelid using the treatment agent of the present invention described above, with the upper eyelid extended such as closing the pupil or turning down the eyelids, a brush or the like is usually used to apply 2 mm to the lower edge of the upper eyelid. It may be applied in the following width and dried. In addition, this drying may be left at room temperature, or appropriate drying may be performed to shorten the drying time.

The coating film thus obtained has hardness and rubber elasticity, and when the pupil is opened and the upper eyelid is contracted, the portion not coated with the treatment agent contracts, but the coating film does not contract. A fold is formed at the upper end of the double eyelid.

The coating film formed by applying the treatment agent of the present invention must not easily peel off in daily life or cause discomfort such as pulling fishing, and has strong adhesion to the eyelid and expansion / contraction of the eyelid. It has an appropriate rubber elasticity to follow the above, and is harder than the eyelid and has a resistance to bending so as to stably form and maintain the double eyelid.

The specific physical properties of the coating film exhibiting the above properties are an elongation of 300 to 500% and a hardness of JIS K 6301 method.
00-150 is preferable. A coating film having physical properties outside this range cannot form and maintain a stable double eyelid.

For example, if it is a coating film that is only hard, it may peel off because it cannot follow the skin due to the expansion and contraction of the skin such as blinking.
Or, it gives the user a feeling of strangeness such as fishing.

In addition, the coating film shows only rubber elasticity,
For example, when the treatment agent is composed of only rubber latex, the hardness of both natural rubber and synthetic rubber (according to JIS K 6301 method) is only 20 to 100, so the hardness is insufficient and the eyes are opened. Even in the state, the coating film cannot extend with the skin to form the double eyelid.

Further, the coating thickness of the treatment agent of the present invention causes a feeling of discomfort to the user as it is thicker, and at the same time, excessive makeup is required to obscure the level difference after the coating film is formed. Therefore, the coating thickness is preferably 50 to 5 μ, although it depends on the softness of the user's eyelid.

As described above, it is preferable that the coating film is as thin as possible, but especially when the user's eyelid is hard, there is not much difference between the hardness of the eyelid and the hardness of the coating film, and a double eyelid is formed. Since it is difficult, it is advisable to use a member with a thin tip to press the eyelid at the upper end of the thin film to assist in forming a double eyelid.

Further, when the treatment agent of the present invention is used frequently or over a long period of time, even when the treatment agent is not applied, creases are continuously formed, and a natural double eyelid can be maintained.

Therefore, the treatment agent for double eyelid formation of the present invention can be utilized as a simple and safe cosmetic molding method.

In the double-eyelid-forming treatment agent of the present invention, it is possible to mix, for example, an antioxidant, a pigment, a fragrance, a filler, and other additives usually used for cosmetics.

<Examples> Examples of the present invention will be described below.

The natural rubber latex used in Examples 1 to 9 and Comparative Examples 1 and 3 had the following properties.

Total solid content (%) 62 Total alkali content (%) 0.7 Sludge content (%) 0.09 Coagulation content (%) 0.07 Mechanical stability (sec) 600 Example 1 Natural rubber latex 64 wt% Acrylic Resin emulsion 36 wt% (average molecular weight 1 million; solid content 45%) Example 2 Natural rubber latex 77 wt% Styrene resin emulsion 23 wt% (average molecular weight 1.2 million; solid content 55%) Example 3 Natural rubber latex 70 wt% % Vinyl acetate resin emulsion 30 wt% (average molecular weight 800,000; solid content 40%) Example 4 Natural rubber latex 73 wt% Vinyl chloride resin emulsion 27 wt% (average molecular weight 1.2 million; solid content 50%) Example 5 Natural Rubber latex 76 wt% Acrylonitrile butadiene resin emulsion (average molecular weight 800,000; solid content 40%) 24 wt% Example 6 Natural rubber latex 78 wt% Styrene butadiene Fat emulsion 22 wt% (average molecular weight 1.5 million; solid content 38%) Example 7 Natural rubber latex 74.4 wt% Styrene acrylic copolymer resin emulsion (average molecular weight 1 million; solid content 46%) 20 wt% colloidal silica 5 wt% Fragrance 0.6wt% Example 8 Natural rubber latex 77.8wt% Vinyl acetate acrylic copolymer resin emulsion (average molecular weight 2,000,000; solid content 54%) 22wt% Bactericide 0.1wt% Antioxidant 0.1wt% Example 9 Natural rubber Latex 67.4wt% Vinyl chloride acrylic copolymer resin emulsion (average molecular weight 400,000, solid content 45%) 24wt% Silica microballoon 8wt% Perfume 0.5wt% Antioxidant 0.1wt% Dye Amount Comparative Example 1 Natural rubber latex 100 wt% Comparative Example 2 Vinyl chloride acrylic copolymer resin emulsion (average molecular weight 400,000, solid content 45%) 100 wt% Comparative Example 3 Natural rubber latex 22 wt% Styrene butadiene resin Marujon (average molecular weight 1.5 million; solid content 38%) 78 wt% (Evaluation method) The treatment agents of Examples 1 to 9 and Comparative Examples 1 to 4 were applied onto a single eyelid and dried for 30 minutes and 90 minutes. The condition of the double eyelids formed in the above was visually observed.

Those in which a beautiful natural double eyelid was formed were evaluated as ○. Those in which the double eyelid was formed, but which felt uncomfortable on the skin were evaluated as Δ, and those in which the double eyelid was not formed were evaluated as ×, and the results are shown in Table 1.

As is clear from Table 1, in Examples 1 to 9 of the present invention, a natural double eyelid could be formed, and no discomfort such as pulling fishing occurred. In particular, the treatment agent of Example 9 was easily suitable for repeated makeup after double-fold formation, and was extremely suitable for actual use.

On the other hand, Comparative Example 1 could not form a double eyelid, while Comparative Examples 2 and 3 formed a double eyelid, but the eyelids were dragged, and it was obvious that the eyelids were uncomfortable.

<Effects of the Invention> As described above, the treatment agent for forming a double-fold eyelid of the present invention can form a natural double-fold eyelid simply by applying a width of about 1 to 2 mm to the lower edge of the upper eyelid. It is a thing.

Further, since the above-mentioned application work can be easily performed with a brush or the like, workability is extremely good as compared with the conventional method of attaching a tape.

Further, the treatment agent of the present invention may have a thin coating film to be formed, so that it does not give a feeling of discomfort to the user, and the repeated makeup after forming the double eyelid may be the minimum necessary amount. Because it is good that there are few, economic efficiency is high.

Further, by applying the treatment agent of the present invention, not only the conventional single eyelid can be changed to a double eyelid, but also larger eyes can be formed than in the prior art, and the cosmetic effect is extremely high.

In addition, by continuously using the treatment agent of the present invention, it is possible to make a natural double eyelid in the eyelid without using this treatment agent, which is extremely inexpensive as a substitute for cosmetic surgery, and It's safe.

Claims (1)

[Claims] 1. A double eyelid is formed by mixing a rubber latex and a synthetic resin selected from an acrylic resin, a urethane resin, or a vinyl resin, and applying it to the lower edge of the upper eyelid and drying it. A treating agent, wherein the rubber latex is mixed in a proportion of 85 to 50% by weight, and a synthetic resin selected from an acrylic resin, a urethane resin, or a vinyl resin is mixed in a proportion of 15 to 50% by weight. Treatment agent for double eyelid formation.