JP2009256242A - Solid manicure remover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solid manicure remover that has excellent portability, usability, coating easiness to an objective removal part and safety not obtained by a manicure removal of liquid, etc., is partially and easily corrected, prevents vaporization of a solvent etc., to the fullest extent and simply predicts a repurchase timing since a reduction degree by use is easy to understand. <P>SOLUTION: The solid manicure remover is a manicure remover containing at least a propylene carbonate and a polyethylene glycol exhibiting a freezing point of ≥48°C and is solid at 45°C. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a solid nail remover that can effectively remove nail enamels applied to nails, and more specifically, it can be safely carried, can be easily corrected, The present invention relates to a solid nail remover that can prevent vaporization of the substance to the maximum.

Conventionally, a beauty nail remover can effectively remove beauty nail materials such as nail enamel applied to nails.
In recent years, more and more women carry beauty nails, and along with them, beauty nail removers such as a light removal liquid are also carried, and the application and correction of beauty nails are frequently performed on the go. ing.

In general, the nail polish is corrected (extruded portion) by using a light-removing solution soaked in absorbent cotton or the like, or by a pen type that removes the solvent from the pen tip.
However, it is troublesome to carry the former light-removing liquid, etc., and there is a problem in safety. In the latter pen type, a color material penetrates into the pen tip, and it becomes colored and dirty, causing clogging. However, the current situation is that it cannot be used regularly for a long time, and further, there are problems such as not knowing how the solution is reduced.

  On the other hand, conventional nail polish removers generally have a gel-type, cream-type, or highly viscous liquid type composition. For example, (1) (a) 20 to 95% by weight of propylene carbonate, (b) 2 to 75% by weight of a lower alcohol selected from the group consisting of ethanol, isopropyl alcohol and n-propyl alcohol, and (c) a carboxyvinyl polymer 0.1 to 5% by weight and (d) 0.1 to 5% by weight of ethylenediaminetetrapolyoxyethylenepolyoxypropylene gel-like enamel remover (for example, see Patent Document 1), 2) Appearance is transparent by including an organically modified clay mineral obtained by treating smectite-type clay minerals with specific quaternary ammonium ions and propylene carbonate, and has excellent safety, storage stability, and usability. Beauty nail remover exhibiting properties (see, for example, Patent Document 2), (3) bentonite and propylene carbonate (For example, refer to Patent Document 3), (4) a solvent containing 0.1 to 50% by weight of silica and the balance comprising a wetting agent, and the weight ratio of the wetting agent to the solvent A gel-like nail enamel remover having a value of 4 or less (see, for example, Patent Document 4), (5) 40 to 80% by weight of propylene carbonate, and selected from the group consisting of diisopropyl adipate, diisobutyl adipate and diethoxyethyl succinate Nail enamel remover containing 10 to 50% by weight of one or more of the above, a nail enamel remover formed by filling the nail enamel remover into a container having a large number of projections having a massage function (for example, , Patent Document 5), (6) Organic solvent for paint, polymer or copolymer of lower aliphatic alcohol ester of methacrylic acid , A polymer or copolymer of a lower aliphatic alcohol ester of acrylic acid or a polymer or copolymer of a higher fatty acid ester of vinyl alcohol and, if desired, lipids such as white petrolatum, castor oil, polyethylene glycol and the like A gel-like, cream nail paint remover comprising a (or) wetting agent and / or a thickener and / or a gelling agent is known (see, for example, Patent Document 6).

The nail polish remover described in each of these documents can be easily applied to the location where the nail polish is applied with a liquid or the like (location to be removed). Since the composition is premised on a liquid or the like, there are problems such that solidification becomes insufficient, stability with time cannot be obtained, and removal operation cannot be performed sufficiently. There is no solid nail remover as a prior art at present.
Japanese Patent Laid-Open No. 4-164012 (Claims etc.) JP-A-10-182359 (Claims, Examples, etc.) JP-A-11-139937 (Claims, Examples, etc.) JP 2000-95646 A (claims, examples, etc.) JP 2005-206560 A (Claims, Examples, etc.) Japanese Patent Publication No. 36-10500 (Claims, Examples, etc.)

  The present invention is to solve this problem in view of the problems and current state of the prior art described above, and is intended to eliminate portability, usability, and intended removal location that cannot be obtained with a liquid nail polish remover. An object of the present invention is to provide a solid beauty nail remover that can be applied easily, is safe, can be partially corrected, and prevents vaporization of solvents and the like to the maximum.

  In view of the above-mentioned conventional problems and the like, the present inventors intend to solve this problem. At least propylene carbonate and a specific polyethylene glycol are contained, and the target solid beauty is a solid at a specific temperature. The inventors have found that a nail remover can be obtained, and have completed the present invention.

That is, the present invention resides in the following (1) to (3).
(1) A beautiful nail remover containing at least propylene carbonate and polyethylene glycol having a freezing point of 48 ° C. or higher, which is solid at 45 ° C.
(2) A nail polish remover containing at least propylene carbonate and polyethylene glycol having an average molecular weight of 2000 or more, which is solid at 45 ° C.
(3) The solid nail remover according to (2) above, wherein the polyethylene glycol has an average molecular weight of 6000 or more.

The “solid nail remover” defined in the present invention refers to, for example, one that removes a beautiful nail additive or other applied material applied to the nail with a solid nail remover, more specifically. Means for removing nail enamel, glossy material, decoration, glue for attaching a one-touch nail (attached nail) and the like with a solid nail remover.
Further, “solid at 45 ° C.” defined in the present invention means a solid that cannot measure viscosity at 45 ° C.

Hereinafter, embodiments of the present invention will be described in detail.
The beauty nail removal agent of the present invention is a beauty nail removal agent containing at least propylene carbonate and polyethylene glycol having a freezing point of 48 ° C. or higher, and is characterized by being solid at 45 ° C.

Propylene carbonate (also known as propylene carbonate) used in the present invention is a solvent that dissolves and removes the nail polish coating, has low toxicity, and has the molecular formula C ₄ H ₆ O ₃ .
The propylene carbonate that can be used is not particularly limited, and commercially available products such as propylene carbonate (manufactured by Showa Denko KK), propylene carbonate (manufactured by Maruzen Chemical Co., Ltd.), propylene carbonate (manufactured by Nisso Oil Chemical Co., Ltd.) and the like are used. be able to.

The content of these propylene carbonates is preferably 30 to 80% by mass (hereinafter simply referred to as “%”), more preferably 50 to 70%, based on the total amount of the nail polish remover. .
If the content of propylene carbonate is less than 30%, the effect as a removing component of the solid nail remover cannot be exhibited. On the other hand, if it exceeds 80%, the wax component contains the entire volume of propylene carbonate. This is not preferable because it becomes impossible to form or becomes brittle even if it is solidified, making it difficult to maintain the shape.

Polyethylene glycol used in the present invention is a main component for solidifying the nail polish remover, and is stable over time by encapsulating (solidifying) the above-mentioned propylene carbonate, a solubilizing agent component, etc. described later in polyethylene glycol. And polyethylene glycol having a solidification point of 48 ° C. or higher, or an average molecular weight of 2000 or higher, preferably 6000 or higher, more preferably 6000 to 20000. At least one selected from the above or the like (each single or a mixture of two or more, and so on) can be used.
Examples of polyethylene glycol (PEG) that can be used include PEG 2000 (48 to 54 ° C., average molecular weight 2000), PEG 4000 (53 to 57 ° C., average molecular weight 4000), PEG 6000 (56 to 63 ° C., average molecular weight 6000), PEG11000 (56-63 degreeC, average molecular weight 11000), PEG20000 (56-63 degreeC, average molecular weight 20000), PEG500000 (100 degreeC or more, average molecular weight 500000) etc. are mentioned.
Preferred polyethylene glycols are preferably PEG 6000, PEG 11000, and PEG 20000 from the viewpoint of further strength.

The content of these polyethylene glycols is preferably 10 to 70%, more preferably 20 to 50%, based on the total amount of the nail polish remover.
When the polyethylene glycol content is less than 10%, the entire volume of propylene carbonate cannot be included, or even when solidified, it becomes brittle and it is difficult to maintain its shape. On the other hand, if it exceeds 70%, the effect as a solid component of the solid beauty nail remover cannot be exhibited, which is not preferable.

In the present invention, it is desirable to add a solubilizing agent component from the viewpoint of more easily removing the nail polish and further suppressing whitening of the nail and surrounding skin.
As the solubilizer component that can be used, for example, at least one selected from diisopropyl sebacate, diethyl sebacate, diisopropyl adipate, diisobutyl adipate, diethoxyethyl succinate and the like can be used.
The content of these solubilizer components is preferably 0.01 to 40%, more preferably 0.1 to 20%, based on the total amount of the nail polish remover.

Further, in the present invention, it is preferable to contain a high melting point oily wax from the viewpoint of further increasing the strength and maintaining a high melting point.
The oil-based wax is not particularly limited, and examples thereof include microcrystalline wax, carnauba wax, candelilla wax, paraffin wax, ceresin, polyethylene wax, mole, beeswax, higher fatty acids (such as stearic acid and behenic acid), and stearyl alcohol. And at least one selected from higher alcohols (such as behenyl alcohol) and sucrose fatty acid esters (such as sugar wax). These oily waxes can be used alone or as a mixture of two or more.
The content of these oily waxes is preferably 5 to 40%, more preferably 15 to 30%, based on the total amount of the nail polish remover.
In the present invention, a modified clay mineral can be further contained from the viewpoint of increasing the strength.
Examples of the modified clay mineral include organic modified clay minerals.
Examples of the organically modified clay mineral that can be used include substances obtained by chemically combining a cationic activator and a nonionic organic polar compound with an organic clay mineral such as bentonite and montmorillonite. Benzyl dimethylstearyl ammonium hectorite [specifically, commercially available Benton 27, Benton 27V (manufactured by ELEMENTIS SPECIALITIES, INC.)], Dimethylstearyl ammonium hectorite [specifically, commercially available Benton 38 , Benton 38V (both are ELEMENTIS SPECIALITIES, INC.)].
The content of these modified clay minerals is preferably 0.1 to 6.0%, more preferably 0.5 to 4.0%, based on the total amount of the nail polish remover.

  Further, the solid nail remover of the present invention includes polyethylene (resin), wax components other than the above oily waxes, perfume, ethyl acetate, butyl acetate, isopropyl alcohol, ethyl, as long as the effects of the present invention are not impaired. Alcohol, butyl alcohol, acetone and the like can be appropriately contained.

The solid nail removal remover of the present invention is formed by mixing the propylene carbonate, polyethylene glycol having a freezing point of 48 ° C. or higher, or polyethylene glycol having an average molecular weight of 2000 or higher, preferably 6000 or higher, and pouring into a mold. By doing, the solid nail material remover which becomes various shapes can be manufactured.
The shape of the resulting solid beauty nail remover is not particularly limited, and can be any shape as long as it is a shape that can maintain a solid state. For example, a cylindrical solid beauty as shown in FIG. A nail remover, a quadrangular prism-shaped solid beauty nail remover as shown in FIG. 1 (b), a solid beauty nail remover having an eraser type corner as shown in FIG. 1 (c), FIG. Examples thereof include a triangular prism-shaped solid beautiful nail remover as shown in d) and a solid beautiful nail remover having an irregular cross section as shown in FIG.
As a preferable shape of the solid nail remover, it is possible to remove a solid nail shape in the form of a cylinder, an elliptical column, a quadrangular column, or a triangular column from the viewpoint of easy removal of the nail polish, strength during use, and shape maintenance. An agent is desirable.

The solid beauty nail remover having these shapes can be used by being held in a solid cosmetic feed-out tool, a holding tool or the like. FIG. 2 is a perspective view illustrating an example of a feeding tool equipped with the solid nail material removing agent of the present invention.
In the feeding tool A, the columnar solid beauty nail material removing agent 12 according to the present invention is attached to the mounting part 11 of the feeding tool body 10, and the turning part 13 serving as the lower part is turned by hand or the like. As a result, the rotating rod portion 14 in the feeding tool main body 10 is rotated so that the mounting portion 11 can move up and down, and the solid nail material removing agent 12 can be fed out. Reference numeral 15 denotes a cap member.

  The thus-configured solid nail remover of the present invention has portability, usability, and ease of application to the intended removal site that cannot be obtained with conventional liquid, cream-like nail remover. Offers a solid nail remover that is safe and easy to modify, can prevent the evaporation of solvents, etc., and can easily predict the reduction due to use. Will be.

  EXAMPLES Next, although an Example and a comparative example demonstrate this invention further more concretely, this invention is not limited at all by the following Example.

Example 1
Propylene carbonate 50%
PEG 20000 (freezing point 56-63 ° C., average molecular weight 20000) 50%
It mixed with the said mixture ratio, melt | dissolved at 70-80 degreeC, and it poured into the shaping | molding die, and obtained the solid nail | claw agent removing agent ((phi) 7.5 * 30mm) shown to Fig.1 (a).

(Example 2)
Propylene carbonate 46.9%
PEG 6000 (freezing point 56-63 ° C., average molecular weight 6000) 23.4%
Stearic acid 23.4%
Carnauba wax 6.3%
It mixed by the said mixing | blending ratio, and the solid beautiful nail | claw remover similar to the said Example 1 was obtained.

(Example 3)
Propylene carbonate 41.7%
PEG 6000 (freezing point 56-63 ° C., average molecular weight 6000) 20.8%
Stearic acid 20.8%
Carnauba wax 16.7%
It mixed by the said mixing | blending ratio, and the solid beautiful nail | claw remover similar to the said Example 1 was obtained.

Example 4
Propylene carbonate 54.8%
PEG 20000 (freezing point 56-63 ° C., average molecular weight 20000) 20.5%
Behenic acid 13.7%
Carnauba wax 11.0%
It mixed by the said mixing | blending ratio, and the solid beautiful nail | claw remover similar to the said Example 1 was obtained.

(Example 5)
Propylene carbonate 47.1%
PEG 20000 (freezing point 56-63 ° C., average molecular weight 20000) 17.6%
Behenic acid 11.8%
Carnauba wax 23.5%
It mixed by the said mixing | blending ratio, and the solid beautiful nail | claw remover similar to the said Example 1 was obtained.

(Example 6)
Propylene carbonate 65.4%
PEG 6000 (freezing point 56-63 ° C., average molecular weight 6000) 7.0%
Carnauba wax 27.2%
Benton 27 0.4%
It mixed by the said mixing | blending ratio, and the solid beautiful nail | claw remover similar to the said Example 1 was obtained.

(Comparative example 1, trial of solidification of Example 1 described in JP-A-2005-206560)
Propylene carbonate 45.0%
Diisopropyl adipate 40.0%
Octyl palmitate 1.0%
Jojoba oil 1.0%
Polyoxyethylene hydrogenated castor oil 1.0%
Benzyldimethylstearylammonium hectorite 12.0%
Mixing at the above blending ratio, heating at 85 to 95 ° C., and further adding 10% of calcium carbonate in an extra portion is poured into a mold of φ7.5 mm, cooled at −10 ° C. for 1 hour, and then carried out. An attempt was made to obtain the same solid beauty nail remover as in Example 1. However, since it became a paste in about 10 minutes at room temperature, ie 25 ° C., it could not be evaluated as a solid remover. In the above formulation, calcium carbonate or organically modified clay mineral was further increased to attempt solidification, but solidification was not successful.

(Comparative example 2, comparative example by use of PEG that is out of claims)
Propylene carbonate 50%
PEG1000 (freezing point 35-39 ° C., average molecular weight 1000) 50%
It mixed by the said mixing | blending ratio, and the solid beautiful nail | claw remover similar to the said Example 1 was obtained.

The stability with time, removability, and removability after aging were evaluated by the following evaluation methods using the solid nail material removers of Examples 1 to 6 and Comparative Examples 1 and 2 obtained above.
These results are shown in Table 1 below.

(Evaluation method of stability over time)
Each solid beauty nail remover was allowed to stand in a constant temperature bath at 25 ° C. and a humidity of 60 RH for 2 days, and then the appearance change and weight change were evaluated according to the following evaluation criteria.
Appearance change evaluation criteria:
A: No change.
○: Some change is observed, but good.
(Triangle | delta): The whitening is recognized on the surface or the change (water droplet) by moisture absorption is recognized.
X: Whitening and deformation are recognized as a whole, or changes due to moisture absorption (water droplets) and deformation are recognized.
Evaluation criteria for weight change:
◎: Less than 1% ○: 1% or more, less than 2% △: 2% or more, less than 5% ×: 5% or more

(Evaluation method of removability and removability after time)
Applying a commercially available nail polish (Bourgeoi Co., Ltd., “Bourjois (registered trademark) One Second” nail enamel) to nail (10 fingers of both hands) by 5 specialist panelists, drying and removing each solid nail polish The ease of removal was evaluated using the following evaluation criteria. Moreover, it evaluated similarly by the said evaluation method of the said removability using each solid beautiful nail material removal agent after evaluation of the said temporal stability.
Evaluation criteria:
(Double-circle): It removed especially favorable.
○: It was successfully removed.
Δ: It was barely possible to remove.
X: Could not be removed.

(Evaluation method of usability of each solid beauty nail remover)
The usability of the removal itself when each nail remover was used was evaluated according to the following evaluation criteria.
Evaluation criteria:
(Double-circle): When it rubbed on the nail | claw, there was no sense of resistance and it could be used without shape loss.
○: Slight resistance or slight loss of shape was observed.
(Triangle | delta): A slightly heavy feeling of use or a small amount of shape loss was recognized, and it was a little difficult to use.
X: It was difficult to use due to heavy feeling of use or large shape loss.

  As is clear from the results of Table 1 above, Examples 1 to 6, which are the scope of the present invention, are more stable than the Comparative Examples 1 and 2, which are out of the scope of the present invention, removal stability, and removal after aging. As a result, it was found that the film has excellent properties, shape retention and usability.

(A)-(e) is embodiment which shows each shape of the solid beautiful nail material removal agent of this invention. It is the perspective view which saw through the internal structure which shows an example of the feeding tool equipped with the solid beautiful nail material removing agent of this invention.

Claims (3)

  A solid nail remover containing at least propylene carbonate and a polyethylene glycol having a freezing point of 48 ° C or higher, which is solid at 45 ° C.   A nail polish remover containing at least propylene carbonate and polyethylene glycol having an average molecular weight of 2000 or more, which is solid at 45 ° C.   3. The solid nail remover according to claim 2, wherein the polyethylene glycol has an average molecular weight of 6000 or more.

Images