JP4931337B2 - Set agent composition for hair - Google Patents

Description

  The present invention relates to a hair set agent composition, and an object of the present invention is to provide a hair set agent composition that is excellent in setting power, has no stiffness, and can suppress flaking.

  One of the functions required for a styling agent is set power. In order to impart a set force, a polymer resin compound is generally blended. However, when an amount of the polymer resin compound effective for setting the hair is blended, there is a problem that even if the hair can be fixed and set, a feeling of stiffness will occur. In addition, the polymer resin compound coated with hair also has a so-called flaking problem that white powder is generated on the hair by peeling after setting.

  In order to solve such problems, attempts have been made to soften the film formed of the polymer resin compound. For example, a set agent containing silicones as a plasticizer (for example, see Patent Documents 1 to 3), a set agent containing polyhydric alcohol (for example, see Patent Documents 4 and 5), and the like. Proposed.

JP-A-6-100418 Japanese Patent Laid-Open No. 10-1425 JP 2001-240519 A JP-A-11-71244 Japanese Patent Application Laid-Open No. 11-10032

  However, when silicones are blended, the feeling of stiffness can be improved, but there is a drawback that the hair fixing effect of the set agent is significantly reduced. Moreover, when a polyhydric alcohol is mix | blended, there exists a fault that a sticky feeling will arise and the set holding power which fixes and maintains hair will be reduced. In view of such circumstances, as a result of intensive studies by the present inventors, by using an acrylic resin alkanolamine and a specific polymer resin compound in combination, the polymer resin compound originally has a further improved setting power, The present inventors have found that a hair setting agent composition capable of suppressing the flaking can be obtained without being stiff, and has completed the present invention.

That is, the invention according to claim 1 includes (A) an acrylic resin alkanolamine, (B) polyvinylpyrrolidone, (C) water, no polyhydric alcohol, and (A) the acrylic resin alkanol. The content of amine is 0.1 to 20% by weight, the content of (B) polyvinylpyrrolidone is 0.1 to 20% by weight, and the content of (C) water is 50 to 99% by weight. And (A) acrylic resin alkanolamine and (B) polyvinylpyrrolidone in a weight ratio of 1: 3 to 3: 1, wherein the hair setting agent composition (however, solid Except for hairdressing cosmetics containing resin fibers) .
請 Motomeko according to a second aspect of the present invention, (D) containing a lower alcohol, wherein (D) the content of lower alcohol, according to claim 1, wherein 0.5 to 45 wt% der Rukoto The present invention relates to a set agent composition for hair.

The hair set agent composition of the present invention uses both an acrylic resin alkanolamine and polyvinylpyrrolidone, so that it does not contain a plasticizer such as silicones and polyhydric alcohols that are frequently used in the past. King can be suppressed. And since the setting power which a polymer resin compound originally has can be further improved, the outstanding set agent composition for hair can be provided.

Head hair setting agent composition according to the present invention (excluding hairdressing cosmetic comprising a solid resin fibers), the content (A) a acrylic resin alkanolamine, and (B) polyvinyl pyrrolidone, and (C) water And does not contain polyhydric alcohol .

The first essential component of the present invention is (A) an acrylic resin alkanolamine. (A) Content of a component is 0.1-20 weight% in a composition, and it is preferable to set it as 0.5-10 weight%. If it is less than 0.5% by weight, the setting power is inferior, and if it exceeds 20% by weight, it is not preferable in either case because it causes stiffening and flaking. Examples of the commercially available acrylic resin alkanolamine used in the present invention include, for example, trade name plus size L-6330 (manufactured by Kyoyo Chemical Industry Co., Ltd.), trade name Aniset A-40M, HPA 40 (manufactured by Osaka Organic Chemical Industry Co., Ltd.), etc. Can be illustrated.

The second essential component is (B) polyvinylpyrrolidone. (B) Content of a component is 0.1-20 weight% in a composition, and it is preferable to set it as 0.5-10 weight%. If it is less than 0.5% by weight, the setting power is inferior, and if it exceeds 20% by weight, it is not preferable in either case because it causes stiffening and flaking.

Commercially available port polyvinyl pyrrolidone used in the present invention, for example, trade name LUVISCOL K-30, K-60 , K-90 ( all manufactured by BASF), trade name PVP K-90 (ISP Corp.) Can be illustrated .

The content ratio of the component (A) and the component (B) is 1: 3 to 3: 1 by weight. When the component (B) exceeds 3 parts by weight with respect to 1 part by weight of the component (A), and when the component (A) exceeds 3 parts by weight with respect to 1 part by weight of the component (B), these polymers The setting power inherent to the resin compound cannot be further improved.

The third essential component of the present invention is (C) water. The water used in the present invention is usually purified water such as distilled water or ion exchange water. The water content is 50 to 99% by weight in the composition, preferably 60 to 95% by weight, more preferably 70 to 90% by weight. If it is less than 50% by weight, the setting power is inferior, and if it exceeds 99% by weight, the polymer resin compound has a low content and is inferior in setting power.

Head hair setting agent composition of the present invention may contain (D) a lower alcohol, such as for drying speed adjustment during use. The lower alcohol to be used is a linear or branched alkyl alcohol having 1 to 5 carbon atoms, and examples thereof include methanol, ethanol, propanol, isopropanol, butanol and the like, and ethanol and isopropanol are preferably used.

Content of a lower alcohol is 0.5 to 45 weight% in a composition, and it is preferable to set it as 4 to 40 weight%. In the case of less than 0.5% by weight or in the case of exceeding 40% by weight, the setting force is inferior.

For hair head set composition according to the present invention, without impairing the effect of the present invention, other components mentioned above, hydrocarbons, waxes, fatty acids, silicones, esters, higher alcohols, sugar alcohols , Surfactants, UV absorbers, thickeners, fragrances, dyes, preservatives, chelating agents, antibacterial agents, antioxidants, moisturizers, cooling agents, vitamins, plant extracts, propellants, pH adjusters, etc. Can be appropriately blended depending on the purpose.

  The composition of the present invention can be applied to various dosage forms such as wax, gel, foam, and liquid.

  EXAMPLES Next, although this invention is demonstrated in detail based on an Example, this invention is not limited to these Examples. All blending amounts are in weight percent unless otherwise specified.

(Test Example 1: Bending rigidity test)
According to the composition described in Table 1 the samples of Example 1及 beauty Comparative Examples 1 to 4 each were prepared by a conventional method and subjected to the following evaluation. Incidentally, an acrylic resin alkanolamine, trade name Aniset HPA40 a (manufactured by Osaka Organic Chemical Industry Ltd.), Po polyvinyl pyrrolidone, have use the trade name PVP K-90 (ISP Ltd.), the amount each polymer resin Converted to the pure amount as a compound.

23 ° C., overnight standing the test tresses under constant temperature and humidity of 60% humidity (length 10 cm, width 0.8 cm, weight 1g) in 400μL coating each sample of Example 1及 beauty Comparative Examples 1-4 did. After extending uniformly with a comb, the thickness of the hair bundle is made uniform, and again left to stand under constant temperature and humidity of 23 ° C. and 60% humidity for 3 hours. Was used to measure the bending stiffness.

  In addition, one bend is made to bend once to the left and right (+ direction and-direction) up to the maximum curvature, and the bending rigidity (B) and the bending hysteresis width (2HB) are the right and left (1) It was set as the average (M) of the value of + direction and-direction. The measurement was performed 5 by 5 for each sample, and the average of the samples was taken as the value of the sample on the premise that the CV value of both B and 2HB was 10% or less. The results are shown in Table 2.

Bending rigidity indicates that the larger the value, the higher the set force. From the results in Table 2, it can be seen that the combined use of the acrylic resin alkanolamine and polyvinylpyrrolidone enhances the setting power compared to using them alone.

(Test Example 2: Flaking test)
Table 3 likewise respectively prepared as Sample Test Example 1 Example 2及 beauty Comparative Examples 5 to 8 According to the composition described and subjected to the following evaluation.

23 ° C., overnight standing the test tresses under constant temperature and humidity of 60% humidity (length 10 cm, width 0.8 cm, weight 1 g) 400 [mu] L of each sample of Example 2及 beauty Comparative Examples 5 to 8 in coating did. After extending uniformly with a comb, the thickness of the hair bundle was made uniform, and again left for 3 hours at a constant temperature and humidity of 23 ° C. and 60% humidity, and then the center part of the hair bundle was bent 10 times to the right and left. A clear tape was affixed to the bent part, and lightly held so that the hair was evenly blended with the finger, and then the hair bundle was peeled off from the clear tape.

  Tape observation is performed at a magnification of 100 times of a microscope (digital microscope VH-8000; manufactured by KEYENCE), and while observing the monitor, a place where the most flaking is present is selected (first field of view). The more left and right about 5 mm from the location was selected (second field of view). Next, the one that was shifted about 5 mm up and down from the first visual field location was selected (third visual field). Similarly, the three fields of view were selected on the back side of the hair bundle. The total number of flakings per one of the three hair bundles was calculated from the selected portion, and the average value was defined as the flaking value. The results are shown in Table 4.

A smaller value of the number of flaking indicates that flaking is suppressed. From the results of Table 5, it can be seen that the combined use of acrylic resin alkanolamine and polyvinylpyrrolidone suppresses flaking as compared to using them alone.

  Hereinafter, the formulation example of the set agent composition for hair which concerns on this invention is shown. The content is% by weight.

(Prescription Example 1 : Hair Gel)
Ethanol 10.0
Acrylic resin alkanolamine (aniset HPA40) 4.0
Polyvinylpyrrolidone (PVP K-90) 4.0
Propylene glycol 2.0
Carboxyvinyl polymer 0.5
Polyoxyethylene hydrogenated castor oil 0.2
Paraben 0.1
Purified water 79.2
Total 100.0

Since the set agent composition for hair of the present invention further improves the setting power inherent to the polymer resin compound, and does not cause stiffness and can suppress flaking, it is possible to prevent hair wax, hair gel, hair It can be applied to a set for hair of various dosage forms such as foam and hair water.

Claims (2)

(A) acrylic resin alkanolamine, (B) polyvinylpyrrolidone, and (C) water, no polyhydric alcohol ,
Content of said (A) acrylic resin alkanolamine is 0.1-20 weight%, Content of said (B) polyvinylpyrrolidone is 0.1-20 weight%, Content of said (C) water Is 50 to 99% by weight,
The hair setting agent composition (however, solid resin fiber ), wherein the content ratio of (A) acrylic resin alkanolamine and (B) polyvinylpyrrolidone is 1: 3 to 3: 1 by weight Except hairdressing cosmetics). (D) contains a lower alcohol ,
Wherein (D) the content of the lower alcohol, for hair setting agent composition according to claim 1, wherein 0.5 to 45 wt% der Rukoto.