JPH01143818A - Two-phase type nail enamel removing liquid - Google Patents

Abstract

PURPOSE:To obtain the title removing liquid, having beautiful appearance due to a liquid oil present as stable pearly globules without an bad influence, such as damaging or whitening nails, by blending acetone with the liquid oil, water and power. CONSTITUTION:A nail enamel removing liquid obtained by blending 50-95wt.% acetone with 1-50wt.% liquid oil (e.g., liquid paraffin or polydimethylsiloxane) having poor compatibility with the acetone and specific gravity equal to or somewhat higher than that of acetone water mixed phase, 1-30wt.% water and 0.001-0.5wt.% powder. Although oil droplets can be floated or settled by changing the constituent ratio of the acetone and water, the ratio of acetone : water is preferably within the range of 10:1-5:1 in aspects of removing effects of enamel and clouding of liquids. If powder having a pearly luster is used, the oil droplets provide beautiful pearly globules. The above-mentioned liquid oil is readily dispersed in the afore-mentioned removing liquid and the dispersion stability is excellent.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a nail enamel removal solution that does not damage nails or cause any harmful effects such as whitening, and has a beautiful appearance.

(Prior art) Conventionally, nail enamel removal solutions mainly contain organic solvents such as acetone, ethyl acetate, and butyl acetate in order to dissolve and remove nitrocellulose, which is the main component of enamel. The force was strong and caused damage to the skin and nails.

Therefore, in order to protect the skin and nails, the amount of water added to the ingredients is increased, and moisturizers such as glycerin and oil are generally added, but as a result, the main purpose of removing enamel is poor. Not only that, but it also tends to cause precipitation and separation of oil, resulting in an unfavorable appearance.

Furthermore, JP-A-57-122013 proposes a two-liquid layer nail remover with an oil layer, but strong stirring is required to disperse the oil phase, and if it is allowed to stand still, It has the disadvantage that it is difficult to use because it immediately separates into two layers.

(Means for Solving the Problems) The present invention was developed as a result of extensive research in view of the above circumstances, and the results are as follows: 50-95% by weight of acetone, 1-30% by weight of water, 1% of liquid oil
By blending 0°001 to 0.5% by weight of powder into ~50% by weight of liquid, the liquid oil exists as stable pearl-like globules and is easily dispersed by shaking, resulting in stable dispersion. The present invention was completed based on the discovery that the present invention is also excellent.

That is, the present invention uses powder to stably exist liquid oil, which is a protective ingredient for the skin and nails, in the form of pearl-like globules in a nail enamel removal solution consisting of acetone and water, thereby achieving a beautiful appearance. Not only that, the liquid oil is easily dispersed, it is stable and easy to use, and at the same time it protects the skin and nails.

The liquid oil used in the present invention has poor compatibility with acetone and must have a specific gravity equivalent to or slightly higher than that of the acetone/water mixed liquid phase, and must be carbonized liquid oil such as liquid paraffin, squalane, and liquid polyisobutylene. Hydrogen and silicone-based liquid oils such as polymethylsiloxane are preferable. Highly polar esters may dissolve in the acetone/water mixed liquid phase, or cause wrinkles or distortion on the surface of the oil droplets. Furthermore, if the viscosity of the liquid oil is high, the dispersion of the oil content during shaking will be poor, and the formation of oil droplets will be delayed when the product is left standing.

The powder used in the present invention may be any powder normally used in cosmetics, such as mica, talc, kaolin, red iron oxide, yellow iron oxide, black iron oxide, titanium oxide, zinc white, silicic anhydride, calcium carbonate. , barium sulfate, carbon black, carbon dioxide, chromium oxide, carbon black, fish scale foil, titanium mica, titanium mica treated with iron oxide, titanium mica treated with iron oxide, titanium mica treated with carmine, titanium mica treated with carmine, crystalline cellulose, etc., but fish scale foil, mica When powders with pearl luster such as titanium, iron oxide treated mica titanium, condensate treated mica titanium, carmine treated titanium mica, etc. are used, the oil droplets become beautiful pearl-like globules.

By changing the composition ratio of acetone and water, it is possible to make oil droplets float or settle.
Increasing the ratio of water worsens the enamel removal effect, and increasing the amount of acetone tends to cause clouding. Therefore, acetone:water 20:1 to 5:3, preferably 10:1
The ratio is about 5:1.

In addition to these ingredients, ingredients normally used in enamel removal solutions, such as solvents such as ethyl acetate, butyl acetate, and propylene carbonate, glycerin, 1.3-7' ethylene glycol, propylene glycol, and dipropylene glycol. , humectants such as ethylene glycol, polymeric thickeners such as carboxyvinyl polymer, hydroxypropyl cellulose, ethyl cellulose, carboxy cellulose, etc.
Colorants, fragrances, etc. may also be added.

Next, the present invention will be explained in more detail with reference to Examples.

(Left below) [Example 1] Prescription table - 1 Prescription of Example 1 "Polymer acetone solution = 1% hydroxyethylcellulose acetone melt manufacturing method (1) to (6) The components were mixed and homogenized in sequence by stirring, Next, add the component (7) while stirring, and then add the component (8) in order.Finally, add the component Qω (9).

In Example 1, many stable pearl-like globules with a spherical shape of 4 to 5 muφ settled at the bottom of the container and were very beautiful.

(The following is a blank space) [Example 2] Prescription manufacturing method + 1) - (6) were mixed and homogenized in sequence, and while stirring, component (7) was added, and in order, component (8) was processed, and ( 9), add the α0 component.

Example 2 was beautiful, exhibiting many stable red, pearl-like luster oil droplets with a spherical diameter of 2 to 41-φ.

(Effect of the invention) Fish v4 containing the ingredients of Example 1 and Practical Examples 1 to (8) of the present invention
30 people for three products: Comparative Example 1 (corresponding to JP-A No. 57-122013) excluding the foil and Comparative Example 2 excluding components (8) to α0 from Example 1, which is a conventional enamel removal solution. A panel of participants used the product every day for two weeks, and the results were surveyed using a questionnaire.

The questionnaire is 1. The results were evaluated on a five-point scale from (poor) to 5 (good), and the average scores are shown in Table 3.

From the results shown in Table 3, Example 1, which is a product of the present invention, was easy to disperse liquid oil by shaking, was stable, and was easy to use, and at the same time had excellent enamel removal effects and skin and nail protection effects. .

Claims (1)

[Claims] It consists of 50-95% by weight of acetone, 1-50% by weight of liquid oil, 1-30% by weight of water, and 0.001-0.5% by weight of powder, and the liquid oil exists as stable pearl-like globules. A two-phase nail enamel removal solution featuring: