JP7406298B2 - scalp hair cosmetics - Google Patents

Description

The present invention relates to a scalp and hair cosmetic that eliminates discomfort caused by sebum on the scalp and hair and easily improves the appearance and feel of the hair.

Generally, consumers want to spend the day comfortably with beautiful hairstyles while keeping their scalp and hair clean.

However, the scalp and hair gradually become oily due to sebum and sweat secreted from the scalp, leading to increased discomfort. Moreover, as time passes, hair loses firmness and body, and the sense of volume is impaired, making it difficult to maintain a beautiful hairstyle. This phenomenon is more noticeable during hot seasons when sebum is more likely to be secreted, or after exercise, but consumers can quickly eliminate this discomfort in their scalp and hair and easily improve the look and feel of their hair. I'm looking for a way to do that.

Cosmetics for removing stickiness from hair and the like have conventionally existed, but most of these cosmetics are of the spray type, making it difficult to apply the cosmetics to the scalp and roots of the hair. In addition, after applying cosmetics to hair, it is necessary to wipe off the cosmetics along with sebum, dry, and then style the hair again, which is not always convenient for consumers, and the effects are not sufficient. It wasn't satisfying.

Therefore, it is important to develop scalp and hair cosmetics that can be reliably applied to the scalp and hair, dry quickly after application, and easily improve the appearance and feel of the hair.

Japanese Patent Application Publication No. 7-196459

The present invention was made in view of the above-mentioned background art, and its purpose is to easily improve the appearance and feel of the hair by being able to reliably apply it to the scalp and hair, and drying quickly after application. The purpose of the present invention is to provide scalp and hair cosmetics that can provide the following benefits.

In order to achieve the above object, the present inventors conducted extensive studies, and found that the product contains (A) ethanol, (B) powder, (C) a humectant, and (D) a thickener, In particular, by blending component (C) and component (B) in a predetermined ratio, it can be applied reliably to the scalp and hair, and it dries quickly after application, making it easy to improve the look and feel of the hair. We have discovered a scalp and hair cosmetic that can improve the situation, and have completed the present invention.

That is, the present invention provides (A) 20 to 80% by mass of ethanol; (B) 0.1 to 3% by mass of powder consisting of one or more selected from the group consisting of spherical silica, cellulose, and corn starch; Contains (C) a humectant and (D) 0.2 % by mass of a water-soluble vinyl polymer compound, and the mass ratio (C)/(B) of component (C) to component (B) is 5 or less. (Including 0) A scalp and hair cosmetic.

According to the scalp and hair cosmetic of the present invention, it can be reliably applied to the scalp and hair, and after application, it dries quickly, eliminates discomfort caused by sebum, etc., and easily improves the appearance and feel of the hair. becomes possible.

The scalp and hair cosmetic contains (A) ethanol, (B) powder, (C) a humectant, and (D) a thickener, and the mass ratio of component (C) to component (B) is ( C)/(B) is 5 or less (including 0).

(A) Ethanol increases the drying rate of the scalp and hair cosmetic and gives a refreshing feeling to the scalp. In order to obtain a good drying rate, the amount of ethanol blended is preferably 20% by mass or more.

(B) Powder suppresses stickiness on the scalp and gives hair a soft feel. In order to reliably obtain such effects, it is preferable that the blending amount of the powder (B) is 0.1% by mass or more.

Further, it is preferable to use a spherical powder because it gives a smooth feel to the scalp and hair after applying the scalp and hair cosmetic.

(C) The moisturizer may be one that is normally included in cosmetics, etc., and is not particularly limited. For example, dipropylene glycol, propylene glycol, 1,3-butylene glycol, polyethylene glycol 400 , glycerin, and the like.

The mass ratio (C)/(B) of the moisturizing agent (C) to the powder (B) is 5 or less (including 0). The ratio of the moisturizing agent (C) and the powder (B) to be blended into the scalp and hair cosmetic affects the drying speed of the scalp and hair cosmetic, and also affects the feel of the scalp and hair after makeup. If the mass ratio (C)/(B) exceeds 5, the drying rate of the scalp and hair cosmetic will decrease, the scalp will become sticky, and it will be difficult to give a fluffy feel to the hair.

(D) The thickener prevents the scalp and hair cosmetic from dripping from the scalp or hair when applied, and also contributes to stable dispersion of the powder of component (B) in the scalp and hair cosmetic.

The thickener to be blended is not particularly limited as long as it is commonly used in cosmetics, but includes, for example, natural or semi-synthetic water-soluble polymers, synthetic water-soluble polymers, inorganic water-soluble polymers, etc. be able to.

As the natural or semi-synthetic water-soluble polymer, polysaccharides and derivatives thereof (including water-soluble alkyl-substituted polysaccharide derivatives) are preferably used. Specific examples include gum arabic, gum tragacanth, galactan, guar gum, carob gum, gum karaya, carrageenan, pectin, agar, quince seed (quince), algae colloid (cassava extract), starch (rice, corn, potato, wheat), glycyrrhizin. Plant-based polymers such as acids; microbial polymers such as xanthan gum, dextran, succinoglycan, bullulan, etc.; starch-based polymers such as carboxymethyl starch, methylhydroxypropyl starch; methylcellulose, nitrocellulose, ethylcellulose, methylhydroxypropyl Cellulose-based polymers such as cellulose, hydroxyethylcellulose, sodium cellulose sulfate, hydroxypropylcellulose, sodium carboxymethylcellulose (CMC), crystalline cellulose, and cellulose powder; alginic acid-based polymers such as sodium alginate and propylene glycol alginate ester; and the like.

Synthetic water-soluble polymers include ionic or nonionic water-soluble polymers, such as vinyl-based polymers such as polyvinyl alcohol, polyvinyl methyl ether, polyvinyl pyrrolidone, and carboxyvinyl polymers (carbomers); polyethylene glycol (molecular weight 1500 , 4000, 6000); polyoxyethylene polyoxypropylene copolymer copolymer polymers; sodium polyacrylate, polyethyl acrylate, polyacrylamide compounds, acrylic acid/alkyl methacrylate copolymers Examples include acrylic polymers such as Gogo (trade name: "Pemulen TR-1"); polyethyleneimine, cationic polymers, and the like.

The scalp and hair cosmetic composition of the present invention can be produced by a conventional method by mixing, in addition to the above-mentioned components, other components that are normally incorporated into hair cosmetic compositions, within a range that does not impair the effects of the present invention. For example, ultraviolet absorbers, antioxidants, preservatives, bactericidal agents, resins, refreshing agents, fragrances, etc. can be added.

Although it is possible to use a wide variety of containers for storing scalp and hair cosmetics, such as dispenser containers and aerosol containers, if the scalp and hair cosmetics are stored in a squeeze container equipped with an inner stopper with a protruding tip, scalp and hair cosmetics can be removed from the tip of the inner stopper. This is preferable because the cosmetic can be dispensed and reliably applied to the scalp and hair roots.

Hereinafter, the present invention will be explained in more detail with reference to Examples or Test Examples, but these Examples and the like do not limit the present invention. Further, the numerical values indicating the blending amount in the table indicate the mass % in the total amount of the cosmetic.

Each sample was used by five expert evaluation panels when discomfort occurred on the scalp or hair more than 24 hours after hair washing. Sensory evaluations were conducted regarding ``softness'', ``no squeaking of hair'', and ``lightness of hair''.

Judgments were made based on the following evaluation points and evaluation criteria.

+3 points: Very good.
+2 points: Good.
+1 point: Somewhat good.
0 points: Average.
-1 point: Slightly bad.
-2 points: Bad.
-3 points: Very poor.

Judgment was made according to the following evaluation criteria based on the average score of the above evaluation scores.
◎: Average of evaluation scores of 5 panelists is +2 points or more (pass)
○: Average of evaluation scores of 5 panelists is more than +1 point and less than +2 point (pass)
○△: Average evaluation score of 5 panelists is more than 0 points and less than +1 point (pass)
△: Average evaluation score of 5 panelists is more than -1 point and less than 0 point (pass (acceptable))
×: The average of the evaluation scores of 5 panelists is -1 point or less (fail)

As shown in Table 1, it was confirmed that Examples 1 to 6 had good results for all evaluation items.

Table 2 shows the results of testing the influence of the blended amount of ethanol on each evaluation item. When a scalp and hair cosmetic is required to dry quickly, it is preferable to incorporate ethanol in an amount of 20% by mass or more.

Table 3 shows the results of testing the influence of the blended amount of powder on each evaluation item. In order to suppress stickiness on the scalp and give a soft feel to the hair, the amount of powder blended is preferably 0.1% by mass or more.

Table 4 shows the results of testing the influence of powder type on each evaluation item. In Test Examples 10 to 19, it was confirmed that good results were obtained in all evaluation items.

Claims (1)

(A) ethanol 20 to 80% by mass;
(B) 0.1 to 3% by mass of powder consisting of one or more selected from the group consisting of spherical silica, cellulose, and cornstarch;
(C) a moisturizer;
(D) 0.2 % by mass of a water-soluble vinyl polymer compound;
A scalp and hair cosmetic, characterized in that the mass ratio (C)/(B) of component (C) to component (B) is 5 or less (including 0).