JP2818831B2 - Eyelash cosmetics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The invention of claim 1 provides the present invention with a luster and a firmness that makes the eyelashes wet, less sticky during use, and a natural finish. In addition, the present invention relates to an eyelash cosmetic having extremely high external transparency which does not cause flaking (the film peels off and becomes white flakes) with time after application.

Invention of Claim 2 The present invention provides a luster and a firmness that makes the eyelashes wet, reduces stickiness during use, and provides a natural finish. The present invention relates to an eyelash cosmetic that does not cause flakes and has a clear color in both appearance color and application color.

[Background Art] In recent years, transparent eyelash cosmetics mainly composed of a water-soluble polymer have been used for the purpose of obtaining a natural finish and having a transparent feeling that is gentle on the eyes. It is becoming. A base material obtained by neutralizing a water-soluble carboxyvinyl polymer with a basic substance is mainly used as a transparent eyelash cosmetic because of its excellent feel in use. Furthermore, for the purpose of giving gloss, firmness, curl effect to eyelashes, polyvinyl alcohol,
Copolymers of polyvinylpyrrolidone and polyvinyl acetate and the like have been blended.

However, the blending of these water-soluble polymers causes flaking over time after application (the film peels off and becomes white flakes)
, Turbidity, impairing transparency, stickiness, etc., the amount of the compounding is limited. For this reason, there has not yet been obtained a cosmetic having a sufficient function as a transparent eyelash cosmetic which gives the eyelashes freshness and a sufficient elasticity and curl effect.

The invention of claim 2 The conventional ordinary eyelash cosmetics are blended with a synthetic resin emulsion for the purpose of making the eyelashes look darker and longer, for curling the eyelashes, for glossing the eyelashes, and the like. I have. On the other hand, in recent years, eyelash cosmetics of various colors have been studied according to consumer's tastes, and have widely penetrated the market. However, when a pigment is blended with ordinary eyelash cosmetics in order to obtain various color tones, the base color results in a cloudy hue, which is not satisfactory.

[Problems to be Solved by the Invention] In view of the above circumstances, the inventors of the present invention have given a luster as if wet to the eyelashes, and have a sufficient firmness and curling effect, and have a low stickiness during use and a natural As a result of intensive research on cosmetics for eyelashes that give a good finish and that do not cause flaking even after application to the eyelashes and evolve over time, a base consisting of a water-soluble carboxyvinyl polymer and a basic substance It has been found that all these problems can be solved by adding a specific substance to the present invention, and the present invention has been completed.

Inventors of Claim 2 In view of the above circumstances, the present inventors have considered the color of the pigment,
It brings out the texture as it is, has a clear coloration in both the appearance color and the application color, and gives a sufficient gloss and curl effect with a gloss that gets wet on the eyelashes, and also has less sticky when used,
As a result of intensive research on eyelash cosmetics that give a natural finish and do not cause flaking even after application to the eyelashes, water-soluble carboxyvinyl polymer,
It has been found that all of these problems can be solved by blending a specific substance with a base composed of a basic substance and a pigment, and the present invention has been completed.

Means for Solving the Problems Invention of Claim 1 That is, the present invention is an eyelash cosmetic comprising a water-soluble carboxyvinyl polymer, a basic substance, and dextrin.

That is, the present invention is an eyelash cosmetic comprising a water-soluble carboxyvinyl polymer, a basic substance, dextrin, and a pigment.

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

The water-soluble carboxyvinyl polymer used in claim 1 or 2 of the present invention is not particularly limited, and those marketed include Carbopol 940, Carbopol 941, and Carbopol 934 (all BF Goodrich Chemi
cal), Hibiswako 104, Hibiswako 105
(All manufactured by Wako Pure Chemical Industries, Ltd.). The compounding amount is appropriately determined depending on the feeling of use and the desired viscosity, but is generally 0.05 to 5% by weight based on the total amount of the cosmetic.

The basic substance used in claim 1 or 2 of the present invention is not particularly limited, and examples thereof include hydroxides such as sodium hydroxide and potassium hydroxide, L-arginine, and L-arginine.
Basic amino acids such as lysine; amines such as triethanolamine and 2-amino-2-methylpropanol; and ammonia. The amount of the basic substance is not particularly limited as long as it is determined according to the type of the carboxyvinyl polymer, the amount of the carboxyvinyl polymer, and the intended viscosity.
Usually, it is about 0.05 to 3.0% by weight.

The dextrin used in claim 1 or 2 of the present invention is a general term for an intermediate stage product that degrades starch to maltose, and is obtained by treating starch with an enzyme, an acid, heat, or the like, and (C ₆ H ₁₀ O ₅ ) It is represented by nxH ₂ O, and is not particularly limited as long as it is soluble in water. Among those on the market, amicol (manufactured by Nisseki Chemical Co., Ltd.), Paindex, A Soluble Starch, Arabix, Pine Flow, Glister (all manufactured by Matsutani Chemical Co., Ltd.), Soluble Starch # 16 (manufactured by Nichirin Chemical Co., Ltd.) and Sandex (manufactured by Sanwa Starch Co., Ltd.). The compounding amount is preferably 0.5 to 30% by weight based on the total amount of the cosmetic, more preferably 1 to 2%.
5% by weight. If it is less than 0.5% by weight, the cosmetic effect such as giving gloss and firmness to the eyelashes is not sufficient, and if it exceeds 30% by weight, the sticky feel becomes poor.

Examples of the pigment used in the second aspect of the present invention include talc, kaolin, calcium carbonate, zinc white, titanium dioxide, red iron oxide, yellow iron oxide, black iron oxide, ultramarine blue, titanium coated mica, and mica / iron oxide. / Titanium oxide, bismuth oxychloride, red iron oxide, binder pigment, Gunjo pink, chromium hydroxide, mica titanium, chromium oxide, aluminum cobalt oxide, navy blue, black iron oxide, carbon black, silicic anhydride, magnesium silicate, bentonite ,
Mica, sericite, zirconium oxide, barium sulfate, magnesium oxide, zinc oxide, titanium oxide, light calcium carbonate, heavy calcium carbonate, light magnesium carbonate, heavy magnesium carbonate, calamine, nylon powder, polyethylene powder, cellulose powder, acrylic Resin, phthalocyanine blue, herringdon pink, Hansa Yellow, Tartrazine Al Lake, Lisor Rubin BC
A and the like. The compounding amount is 0.05% by weight to 2% of the total amount of the cosmetic.
0% by weight is preferred.

The eyelash cosmetic according to claim 1 or 2 of the present invention has good storage stability over time and stability when exposed to ultraviolet irradiation, and sodium hexametaphosphate to maintain quality.
It is preferable to add a sequestering agent such as sodium edetate and sodium gluconate. If necessary, lower alcohols such as ethanol and isopropanol, 1,3-
Butylene glycol, dipropylene glycol, polyhydric alcohols such as glycerin and sorbitol, surfactants,
Contains other water-soluble polymers, hair protection agents such as seaweed extract and keratin derivatives, humectants such as chondroitin sulfate sodium and sodium hyaluronate, drugs, pigments, preservatives, fragrances, antioxidants, ultraviolet absorbers, etc. You can also. Naturally, these components must be within qualitative and quantitative ranges that do not impair the effects of the present invention.

[Examples] Next, the present invention will be described in more detail with reference to examples.
The present invention is not limited by this. The compounding amount is% by weight. Prior to the examples, an effect test method and an evaluation method will be described.

Usability (freshness, gloss, beam) The tester actually applied the cosmetic for eyelashes, and carried out a sensory evaluation on the refreshment at the time of use, the gloss after use, and the beam.

：: Very good ○: Good △: Slightly poor ×: Poor Makeup stickiness (presence or absence of powdering) The tester actually applied eyelash cosmetics and evaluated the presence or absence of powdering over time.

Transparency (L value) It was measured using Hitachi Color Analyzer 607. Thickness 1
A sample was taken in a glass cell of cm, light of 380 to 780 nm was transmitted, and the transparency was evaluated by measuring the L value of a standard white plate placed behind.

L value 90 or more: Totally transparent L value 80-89: Slightly opaque L value 70-79: Pretty opaque L value 69 or less: Almost opaque Example 1-3, Comparative examples 1-5 For eyelashes according to the formulation shown in Table-1 Cosmetics were manufactured and evaluated for each.

(Production method) Dissolve (1), (3), (4), (5) and (7) in (6),
Into this, (9) was dissolved in (8) and (2) were added, and the mixture was stirred uniformly to obtain eyelash cosmetics.

As is clear from Table 1, Examples 1 to 3 gave gloss to the eyelashes, and were confirmed to be clear eyelash cosmetics with a refreshing feel of use and good makeup.

Example 4 Eyelash cosmetics were manufactured according to the formulations shown in Table 2 and evaluated.

(Manufacturing method) (1) (3) to (5) (7) to (12) were dissolved and dispersed in (6), and (13) was separately dissolved in (12) and (2). In addition, the mixture was stirred uniformly to obtain eyelash cosmetics.

As is evident from Table 2, Example 4 gave a gloss to the eyelashes, and was confirmed to be a cosmetic material for eyelashes having a refreshing feel of use and excellent makeup. Further, the eyelash cosmetic of Example 4 had a clear color in both the appearance color and the application color.

[Effects of the Invention] The eyelash cosmetic according to claim 1 of the present invention gives a luster and a firmness to the eyelashes, gives less stickiness during use, and provides a natural finish, and after application, it is time-lapsed. The eyelash cosmetic according to claim 2, which has extremely high appearance and transparency without causing flaking (the film peels off and forms white flakes).
Gives the eyelashes a wet shine, firmness, less stickiness during use, a natural finish, and no flaking (the film peels off and becomes white flakes) over time after application. Both the appearance color and the application color have clear hues.

Claims (2)

(57) [Claims] 1. An eyelash cosmetic comprising a water-soluble carboxyvinyl polymer, a basic substance, and dextrin. 2. An eyelash cosmetic comprising a water-soluble carboxyvinyl polymer, a basic substance, dextrin, and a pigment.