JP2652558B2 - Two-liquid layer remover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a new form of a two-liquid type remover, and more particularly, to a two-layer type remover that has a sufficient treatment effect without stickiness due to oil and has a beautiful appearance. It relates to a liquid layer type remover.

[Conventional technology]

As a remover for removing nail enamel mainly composed of nitrocellulose, conventionally, ketones such as acetone and methyl ethyl ketone, acetates such as ethyl acetate and butyl acetate, and ethyl cellosolve as a base material, and water And an oil component are used.

However, careless blending of water and oil has the drawback that the light-removing effect is reduced and the oil remains sticky, which makes the preparation difficult.

To solve this problem, acetone: water = 9
0.5 to 10 in an aqueous acetone solution having a weight ratio of 5: 5 to 80:20.
A method has been proposed in which 0% by weight of an oil component is blended to form a two-layer type remover (Japanese Patent Laid-Open No. 57-122013).

[Problems to be solved by the invention]

The above-mentioned remover is used in a state where the oil is allowed to settle at the bottom of the container as large oil droplets in a stationary state, and is shaken when used to disperse the oil as fine particles.

However, this remover has a large amount of acetone, which degreases the nails. The degree of fineness of the oil varies depending on the degree of shaking. Therefore, the appearance is not good, and coloring is carried out by blending an oil-soluble dye in order to clarify the separation of the layers and to make the appearance beautiful, but there are few kinds of dyes for coloring the oil layer, and However, the oil-soluble dye is also eluted in the acetone aqueous solution layer, so that it is difficult to obtain a desired coloring.

[Means for solving the problem]

Under such circumstances, the present inventors have conducted intensive studies to solve the above problems, and as a result, if the hydrophobized anhydrous silica is added to a system composed of acetone, water and oil, the precipitated oil is reduced to fine uniform particles. The present invention has been completed by finding that fine particles of oil can be colored by a pigment and that a relatively large amount of oil does not cause stickiness.

That is, the present invention relates to 50-80% by weight of acetone, 10-
40% by weight, oil content 5 to 15% by weight and hydrophobized anhydrous silica
An object of the present invention is to provide a two-liquid type remover containing 0.01 to 2% by weight and containing oil as fine particles.

In the remover of the present invention, acetone dissolves and removes a coating film of nail enamel mainly composed of nitrocellulose, and its compounding amount is 50 to 80% by weight (hereinafter, simply shown as%).
Is preferred. If the amount of acetone is less than 50%, a sufficient light-removing effect cannot be obtained, and if it exceeds 80%, the nails are degreased, which is not preferable. Water also prevents the removal of water from the nails by acetone and provides an emollient effect to rehydrate the nails. The blending amount of water is preferably 10 to 40%, and if it exceeds 40%, the light removing effect is reduced.

As the oil component, any oil may be used as long as it is commonly used in cosmetics. Liquid paraffin, squalane, isopropyl myristate, and the like. The blending amount of these oils is preferably 5 to 15%, and if it exceeds 15%, the light removing effect is reduced and stickiness is caused.

As the hydrophobized anhydrous silica, those obtained by hydrophobizing anhydrous silica by an ordinary method are used. A commercially available product such as Taranotsukus 500 (manufactured by Talco Inc.) can be used. The blending amount of the hydrophobized anhydrous silica is preferably 0.01 to 2%, particularly preferably 0.1 to 0.5%.
When the amount is less than 0.01%, the oil does not become fine particles, and when it exceeds 2%, the hydrophobized anhydrous silica in the oil is eluted into the acetone-water system, which is not preferable.

The two-liquid layer type remover of the present invention is obtained by adding a mixture of acetone and water uniformly to a dispersion of oil-treated hydrophobized anhydrous silica, and adding fine oil particles having a particle diameter of about 0.1 to 1.0 mm. It is prepared by sufficiently stirring to obtain.

If a pigment such as red No. 226, yellow No. 401, ultramarine blue, titanium oxide, iron oxide, zinc white, mica, iron oxide mica titanium is blended with the remover of the present invention, the pigment is reduced to only fine oil droplets. Since it is oriented, does not elute into the acetone-water system, and is stable over time, a remover having a beautiful appearance can be obtained. The pigment may be a treated pigment, a composite pigment, or a processed pigment. It is preferable that the pigment is sufficiently mixed with a part of the oil, and then dispersed in the remaining oil.

The remover of the present invention, in addition to the above components, as long as the purpose is not impaired, fragrance, ultraviolet absorber, salt, beauty agent,
Ethanol, butyl acetate and the like can be blended.

When the remover thus obtained is allowed to stand, oil droplets of fine particles dispersed in the acetone-water system settle at the bottom of the container without coalescing, and exhibit a beautiful two layers. When this is shaken gently at the time of use, fine particles of oil are easily and uniformly redispersed in an acetone-water system, so that light removal treatment can be performed.

〔The invention's effect〕

As described above, the two-liquid layer type remover of the present invention has the following various features.

B) Since the amount of acetone is appropriate, there is no risk of degreasing the nails.

(B) Since the oil content exists as fine particles, the oil presents a new form of two layers with a beautiful appearance when left standing, and can easily and uniformly disperse the oil content when used.

(C) Since the oil layer can be colored with a pigment having a rich color tone and being stable to light or the like, a new form of remover having a beautiful appearance can be provided.

(D) there is no stickiness despite the relatively high oil content,
Has an excellent treatment effect.

〔Example〕

 Next, an example will be described.

Example A remover comprising the components shown in Table 1 was prepared, and its dispersibility in oil droplets, the ability to remove nail enamel, the effect of preventing nail degreasing and the stability over time were examined.

(Preparation method) A: 1 and 2 are uniformly mixed and dissolved.

B: 3 to 8 are uniformly mixed and stirred.

C: Add A to B and stir well.

(Evaluation Criteria) Dispersibility: The remover was lightly shaken to evaluate the dispersibility of oil droplets.

Nail enamel removal power: The removal effect when nail enamel was removed using a remover was evaluated.

Prevention of degreasing of nails: The degreasing prevention effect when using the deodorizing solution was evaluated.

Stability over time: The remover was left in a constant temperature layer at 40 ° C., and the state after 1 day and 7 days was observed.

As is clear from Table 1, the two-liquid layer type remover of the present invention has a good oil droplet dispersibility, a good stability over time, a good nail enamel removal power, and an effect of preventing nail degreasing. Something excellent.

Claims (1)

(57) [Claims] (1) 50-80% by weight of acetone, 10-40% by weight of water,
A two-liquid type remover containing 5 to 15% by weight of oil and 0.01 to 2% by weight of hydrophobized anhydrous silica, wherein the oil is present as fine particles.