JPS61246113A - Manicure - Google Patents

Abstract

PURPOSE:To obtain a manicure having improved resistance to peeling-off, by adding an alkyd resin, sucrose benzoate and acetyl triethyl citrate to a manicure containing nitrocellulose and a solvent. CONSTITUTION:A manicure composed mainly of nitrocellulose and a solvent such as ester, ether or hydrocarbon, etc., is compounded with (A) 4-10wt% alkyd resin, especially alkyd resin modified with versatic acid glycidyl ester, etc., (B) 2.5-8.5wt%, preferably 3.5-6.5wt% sucrose benzoate and (C) 3-7wt%, preferably 4-6wt% acetyl triethyl citrate. The manicure obtained by the above process has excellent resistance to peeling-off with time, and various other properties required in manicure, e.g. applicability to the nail, driability, gloss, removability with a remover, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a nail polish (nail enamel, nail enamel paste coat), *-nail enamel overcoat) with improved peeling properties.

More specifically, the present invention relates to a nail beauty product whose main ingredients are nitrocellulose and a solvent (hereinafter referred to as a solvent-based nail beauty product) that are easy to apply to the nails, have excellent drying properties and gloss, and do not easily peel off over time.

[Conventional technology]

In recent years, the quality of solvent-based nail polishes has significantly improved, especially due to advances in nitrocellulose and caramel, and they have become indispensable as make-up cosmetics. Peeling properties over time are particularly important. Conventionally, nail polishes require ease of application, drying properties, gloss, scratch resistance, water resistance, detergent resistance, and oil resistance. In order to particularly improve the peeling properties among other properties such as peeling properties, various resins such as alkylene, carbonate resins, acrylic resins, and sulfonamide resins are blended into solvent-based nail polishes. Furthermore, various plasticizers such as dibutyl phthalate, acetyl tributyl citrate, dioctyl adipate, tricresyl phosphate, and camphor are blended to plasticize the nitrocellulose and improve its peeling properties.

[Problem that the invention seeks to solve]

However, nail beauty products are applied to the nails of the human body, and therefore, they can be applied to the person's daily activities such as bathing, hair washing, cooking, laundry, office work such as using a typewriter, various sports, etc. Most daily activities have elements that promote the peeling of nail polish. Under such harsh actual conditions of use, the solvent-based nail polishes containing the various resins and plasticizers still have the drawback of insufficient peeling properties.

In view of these circumstances, the present inventors have conducted extensive research to solve the above-mentioned shortcomings, and have found that if alkyd resin, sucrose benzoate, and acetyl triethyl citrate are blended into a solvent-based nail polish, peeling will occur. We have discovered that it has excellent properties and also satisfies the properties of other nail beauty products, and based on this knowledge, we have completed the present invention.

[Means for solving problems]

That is, the present invention provides a solvent-based nail polish containing an alkyl-based resin, sucrose benzoate, and acetyltriethyl citrate.

Hereinafter, the configuration of the present invention will be explained in detail.

As the nitrocellulose used in the present invention, any conventionally known nitrocellulose can be used.

Examples include nitrocellulose R81/2 seconds, nitrocellulose R8174 seconds, and nitrocellulose R3l/8 seconds. One or more types are arbitrarily selected from these.

The blending amount is generally 5 to 25% by weight (hereinafter simply referred to as %) with a wetness of PA of x%.

As the solvent used in the present invention, conventionally known ester, alcohol, and hydrocarbon solvents can be used. Examples include ethyl acetate, butyl acetate, amyl acetate, ethyl alcohol, isopropyl alcohol, butyl alcohol, and toluene. One or more types are arbitrarily selected from these.

The blending amount is generally ω~85%.

The alkyd resin used in the present invention is a synthetic resin based on an ester of a polybasic acid such as phthalic anhydride and a polyhydric alcohol such as glycerin or pentaerythritol, and further modified with various oils, fatty acids, or other modifiers. However, a particularly preferable example is Japanese Patent Publication No. 57-27082.
Examples include persatic acid glycidyl ester-modified alkyd resins described in Japanese Patent Publication No.

The blending amount is 4 to 10%.

sucrose benzoyl sicol chemical corporation) used in the present invention, and its blending amount is selected within the range of z5 to &5%, but preferably 3.5%.
~&5%. If it is less than 25%, the effect of improving the peeling property is not sufficient, and if it exceeds &5%, the peeling property becomes poor, which is not preferable.

The acetyltriethyl citrate used in the present invention is, for example, Citro [F] Flex A-2 (01troflex A-2) manufactured by Pfizer Inc. in the United States, and its blending amount is selected within the range of 3 to 7%. However, it is preferably 4 to 6%. If it is less than 3%, the effect of improving the peeling property will not be sufficient, and if it exceeds 7%, the enamel coating will be easily scratched and the peeling property will be poor, which is not preferable.

In addition to the above-mentioned essential ingredients, the nail beauty preparation of the present invention may contain pigments, dyes, pearlescent agents/organic bentonite-based gelling agents, ultraviolet absorbers, and the like, if necessary.

Of course, these must be used under qualitative and quantitative conditions that do not impair the purpose of the present invention.

〔Effect of the invention〕

The nail beauty product of the present invention has excellent peeling properties and is difficult to peel off when administered orally, and has the characteristics required as a nail beauty product, such as ease of application to nails, drying properties, gloss, and ease of removal with a remover. It also has other properties.

〔Example〕

Next, the present invention will be explained in more detail with reference to Examples and Comparative Examples. The present invention is not limited thereby. The blending amount is in weight%.

(Left below) (Manufacturing method) After stirring and mixing ◎0◎ [phase], add ■■■■ [phase] @ and ■■■■■, and stir and dissolve. Next, O was added, stirred and dissolved, and then ◎ [phase] was added and stirred and dispersed to obtain a red nail polish.

1 Effect) Ease of application A sample was filled into a 1OfrLt glass bottle with a brush, and the ease of application to the nails (one coat, two coats) was evaluated.

The rating is ○C (good) if it can be applied neatly and smoothly.

Those that were somewhat difficult to apply were rated △ (slightly poor), and those that were extremely difficult to apply were rated X (poor).

Drying performance After applying the sample twice on the nail in a room at 5°C, measure the drying speed to the touch. If it takes 2 to 5 minutes, it is ○, if it takes 5 to 8 minutes, it is △, or more than 8 minutes. Those requiring the following were marked as ×.

The sample was applied uniformly onto a glossy glass plate using a 035 doctor blade, and after drying at room temperature for M hours, the gloss of the coating film was measured using a D-2 type gloss meter at an angle of incidence of 6Q6 - angle of reflection of 600. The value of was measured. For evaluation, those with a measured value of 90 to 100 were rated as Δ, and those with a measured value of 0.90 to 70 were rated as Δ, and those with a measured value of 70 or less were rated as ×.

Hardness (Difficulty in scratching the coating film) Create a uniform coating film on the glass plate using an α35 Dragon doctor blade, dry it at room temperature for a few hours, and then measure it using a Vickers hardness meter (load 259, time 5 seconds). ), and those with a value of 70 to 100 are designated as Δ, those with a value of 0.100 to 130 are designated as Δ, and those with a value of 130 to 160 are designated as X (the higher the value, the softer the coating is and the more easily scratched ).

Flexibility of the coating film: Using an α85 doctor blade, create a sample dry film C size IQ × 50 tx with a thickness of about 60 cm.
After drying with a mallet at room temperature, a tensile tester (tensile speed 20
The elongation at break was measured at tea/m1.

For evaluation, those with this value of 25% to 25% were given OC (moderate flexibility), those with 5 to 35% were given △ (too flexible), and those below 15% were given X (no flexibility).

Peeling characteristics: A sample was applied uniformly onto a nylon plate using a 035-meter doctor blade, and after drying at room temperature for M hours, a cross-cut test I1, which is used in general paint adhesion evaluation, was performed.
mzX1+us 100 pieces) was carried out. The evaluation was as follows: ◯ if the dried paint film remained square with a size of 1 x 1, Δ if it became slightly less square, and × if it became a jagged irregular shape (large peeling area).

Furthermore, as an evaluation of peeling characteristics, each sample was coated with water.

It is expressed as the average value of usage over 3 days by 10 female panelists (100 nails), and those with this value of 05 to Losm are ○,
Those with a diameter of 10 to 15 mm were rated Δ, and those with IJ+as or more were rated ×.

(Left below) Examples 1, 2, 3, 4, 5, 6, 7, 8.9 and Comparative Example 1
, 2, 3, 4, 5, 6, 7, 8, 9, 10° The nail beauty products of Examples 1, 2, 3, 4, 5, 6, 7, and 8.9 containing resin, sucrose benzoate, and acetyl triethyl citrate had the following properties: - ease of application to nails, drying properties, It has excellent coating film gloss, coating hardness (scratch resistance, coating flexibility, and peeling properties (cross-cut test, use test), and as a result,
It can be seen that the overall evaluation is also excellent.

Comparative Examples 1 and 2.3 contain sucrose benzoate and acetyltriethyl citrate, but the resin is not an alkyd resin but an acrylic resin, toluenesulfonamide/formaldehyde resin, and sucrose acetate butyrate. Therefore, the hardness and flexibility of the coating film are poor, and the peeling characteristics are not excellent.

Comparative Examples 4 and 5 contain alky resin, sucrose benzoate, and acetyl triethyl citrate, but Comparative Example 4 contains a small amount of sucrose benzoate, and Comparative Example 5 contains Since the amount of crose benzoate is too large, the hardness of the coating film, the flexibility of the coating film, and the peeling characteristics are inferior, which is not preferable.

Comparative Examples 6, 7, and 8.9 contain alkyd resin and sucrose benzoate, but the plasticizer is not acetyltriethyl citrate but dioctyl adipate,
Since they are dibutyl phthalate, acetyl tributyl citrate, and tricresyl phosphate, they are unfavorable because they have poor coating gloss, coating flexibility, and peeling properties.

Comparative example U contains alkyd resin, sucrose benzoate, and acetyl triethyl citrate, but because the amount of acetyl triethyl citrate is small, comparative example U contains citric acid. If the amount of acetyltriethyl is too large, the hardness and peeling properties of the coating film will be poor, which is not preferable.

Table 2 The above examples show that the solvent-based nail polish of the present invention has excellent peeling properties, ease of application to nails, drying properties, gloss of the paint film, and hardness of the paint film (scratch resistance). ), etc., and it was confirmed that it has sufficient functionality as a nail beauty agent.

Claims (1)

[Claims] A nail beauty product containing nitrocellulose and a solvent, which is characterized by containing an alkyd resin, sucrose benzoate, and acetyltriethyl citrate.