JP6072545B2 - Non-aqueous hair cosmetic - Google Patents

Description

  The present invention relates to a non-aqueous hair cosmetic that can suppress fading of hair that has been dyed with a hair dye.

  In recent years, dyeing treatments for dyeing hair into various colors using hair dyes have become popular, and at the same time, there is an increasing need for suppression of fading of hair after treatment. As one of the causes of fading of hair after the dyeing treatment, ultraviolet rays contained in sunlight can be considered.

  Patent Documents 1 to 4 are not intended for application to hair, but for the purpose of suppressing skin damage due to ultraviolet rays and quality deterioration of the cosmetics themselves, various ultraviolet absorbers are blended, and water is added. Water-based cosmetics that are used as the main medium or contain water have been proposed.

JP 2006-117669 A JP 2006-117670 A JP 2009-91260 A JP 2009-256215 A

  However, even if the cosmetics described in Patent Documents 1 to 4 are applied to hair that has been subjected to a dyeing process, the fading cannot be satisfactorily suppressed.

  This invention is made | formed in view of the said situation, The objective is to provide the non-aqueous hair cosmetics which can suppress the fading of the hair which dye | stained with the hair dye.

  The non-aqueous hair cosmetic of the present invention that can achieve the above object is characterized in that it comprises diethylhexyl syringylidene malonate or a derivative thereof, or acai fruit oil.

  ADVANTAGE OF THE INVENTION According to this invention, the non-aqueous hair cosmetics which can suppress the fading of the hair dyed with the hair dye can be provided.

  The mechanism of fading caused by ultraviolet rays in the dyed hair is considered to be that active oxygen is generated by the irradiation of ultraviolet rays, which decomposes the pigment in the hair. Here, it has been found that, when hair absorbs moisture such as moisture and sweat in the air and swells, active oxygen tends to move, or its action increases and fading easily proceeds.

  Therefore, in the present invention, the hair cosmetic is made non-aqueous, and by applying this, moisture such as moisture and sweat in the air is difficult to enter the hair, and swelling of the hair due to moisture derived from the hair cosmetic is prevented. In addition to suppressing the action of active oxygen generated by ultraviolet rays so that it can be prevented, even when blended in non-aqueous hair cosmetics, by using components that can exhibit good antioxidant ability, The fading of the applied hair can be satisfactorily suppressed.

  The non-aqueous hair cosmetic composition of the present invention contains diethyl hexyl syringylidene malonate or a derivative thereof (for example, bisethylhexyl hydroxydimethoxybenzyl malonate) or acai fruit oil. These components have a function of suppressing the fading of hair due to active oxygen, and these functions are exhibited well even when the hair cosmetic is made non-aqueous.

  In the non-aqueous hair cosmetic, only one of diethylhexyl syringideride malonate and derivatives thereof and acai palm fruit oil may be blended, or two or more may be blended.

  The amount of diethylhexyl syringylidene malonate or derivatives thereof or acai coconut oil in non-aqueous hair cosmetics (if more than one of these is added to non-aqueous hair cosmetics, The total amount. The same shall apply hereinafter.) Is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, from the viewpoint of better ensuring the effect of its use. It is particularly preferable that the content is at least mass%. However, if the amount of diethylhexyl syringylidene malonate or its derivative or Acai coconut fruit oil in the non-aqueous hair cosmetic is too large, the anti-fading effect is improved, but the hair is not sticky and the hair is The goodness is impaired. Therefore, the amount of diethylhexyl syringylidene malonate or its derivative or acai fruit oil in the non-aqueous hair cosmetic is preferably 1% by mass or less, more preferably 0.8% by mass or less. Preferably, it is more preferably 0.5% by mass or less, and particularly preferably 0.4% by mass or less.

Nonaqueous hair cosmetic composition of the present invention, ethylhexyl methoxycinnamate and Jiechiruami Roh-hydroxybenzoyl hexyl benzoate are preferably are further compounded.

Ethylhexyl methoxycinnamate has a property of absorbing ultraviolet B wave, Jiechiruami Roh hydroxybenzoyl hexyl benzoate has the property of absorbing ultraviolet A wave. Therefore, the non-aqueous hair cosmetic composition of the present invention, when both of the ethylhexyl methoxycinnamate and Jiechiruami Roh-hydroxybenzoyl hexyl benzoate is blended, the hair subjected to dyeing treatment, the ability to suppress the discoloration due to ultraviolet More improved.

  The blending amount of ethylhexyl methoxycinnamate in the non-aqueous hair cosmetic is preferably 0.01% by mass or more, and more preferably 0.5% by mass or more, from the viewpoint of ensuring better the effect of its use. More preferably, it is more preferably 2% by mass or more, and particularly preferably 3% by mass or more. However, if the amount of ethylhexyl methoxycinnamate in the non-aqueous hair cosmetic is too large, the anti-fading effect is improved, but the non-stickiness of the hair and the goodness of fingering of the hair are impaired. Therefore, the blending amount of ethylhexyl methoxycinnamate in the non-aqueous hair cosmetic is preferably 6% by mass or less, more preferably 5% by mass or less, and particularly preferably 4% by mass or less.

In the amount of Jiechiruami Roh-hydroxybenzoyl hexyl benzoate in the nonaqueous hair cosmetics, from the viewpoint of better ensuring the effect of its use, preferably at least 0.1 wt%, 0.3 wt% or more More preferably, it is more preferably 0.5% by mass or more, and particularly preferably 0.8% by mass or more. However, if the amount of Jiechiruami Roh-hydroxybenzoyl hexyl benzoate of the non-aqueous hair cosmetic composition is too high, although the anti-fading effect is improved, it is impaired goodness of finger combability name of or hair of stickiness of the hair. Therefore, the amount of Jiechiruami Roh-hydroxybenzoyl hexyl benzoate in the nonaqueous hair cosmetic is preferably 3 mass% or less, more preferably at most 2 mass%, particularly not more than 1 wt% preferable.

  Moreover, it is preferable that highly polymerized methylpolysiloxane is further blended in the non-aqueous hair cosmetic composition of the present invention. Thereby, the stickiness of the hair after processing with non-aqueous hair cosmetics can be suppressed, or fingering can be improved.

  The highly polymerized methylpolysiloxane has a degree of polymerization of 650 or more. For example, the viscosity when it is contained in decamethylcyclopentasiloxane at a ratio of 15% by mass is preferably 2000 mPa · s to 10,000 Pa · s. .

  As used herein, “viscosity when highly polymerized methylpolysiloxane is contained in decamethylcyclopentasiloxane in a proportion of 15% by mass” uses a B-type viscometer, rotor No. 4 is a value 60 seconds after the start of measurement when measured at 25 ° C. with a rotor rotation speed of 60 rpm.

  Highly polymerized methylpolysiloxane is also commercially available as a mixture of methylpolysiloxane and decamethylcyclopentasiloxane. Examples of such a mixture that is commercially available (methylpolysiloxane 15% by mass and decamethylcyclopentasiloxane 85% by mass) include “KF-9014” manufactured by Shin-Etsu Chemical Co., Ltd., Momentive Examples thereof include “XF49-601” and “XF49-A3818” manufactured by Performance Materials Japan GK.

  The blending amount of the highly polymerized methylpolysiloxane in the non-aqueous hair cosmetic is preferably 0.05% by mass or more, more preferably 0.1% by mass or more, from the viewpoint of better ensuring the effect of its use. Is more preferably 0.3% by mass or more, and particularly preferably 0.5% by mass or more. However, if the amount of the highly polymerized methylpolysiloxane in the non-aqueous hair cosmetic is too large, the non-stickiness of the hair and the goodness of fingering of the hair are impaired. Therefore, the blending amount of the highly polymerized methylpolysiloxane in the non-aqueous hair cosmetic is preferably 5% by mass or less, more preferably 3% by mass or less, still more preferably 1% by mass or less, It is particularly preferably 0.8% by mass or less.

  In the non-aqueous hair cosmetic of the present invention, a non-aqueous medium is used as a medium. Examples of the non-aqueous medium include lower alcohols such as ethanol and isopropyl alcohol; volatile silicones; Examples of the volatile silicone include linear silicones such as linear dimethyl silicone such as octamethyltrisiloxane, decamethyltetrasiloxane, and methylpolysiloxane (low viscosity of about 0.65 to 5 cp); Examples thereof include cyclic silicones such as cyclic dimethyl silicone such as cyclotetrasiloxane, decamethylcyclopentasiloxane and dodecamethylcyclohexasiloxane. As the non-aqueous medium of the non-aqueous hair cosmetic composition of the present invention, only one of the above examples may be used, or two or more of them may be used in combination.

  The blending amount of the non-aqueous medium in the non-aqueous hair cosmetic is, for example, 85% by mass or more and 99% by mass or less.

  In addition to the above-described components, for example, various components blended in the non-aqueous cosmetic can be appropriately blended with the non-aqueous hair cosmetic of the present invention as long as the effects of the present invention are not impaired. Examples of such additive components include ester oils, fats and oils, silicones (silicones other than the above-mentioned highly polymerized methylpolysiloxane and volatile silicones), and the like.

  Specific examples of ester oils include, for example, ethyl oleate, isopropyl myristate, isopropyl palmitate, butyl stearate, cetyl palmitate, myristyl myristate, octyldodecyl myristate, capryryl eicosenoate, isopropyl isostearate, ethyl isostearate , Cetyl 2-ethylhexanoate, hexyl isostearate, ethylene glycol di-2-ethylhexanoate, ethylene glycol dioleate, propylene glycol di (capryl / capric acid), propylene glycol dioleate, trimethylolpropane triisostearate, tetra-2 -Pentaerythritol ethylhexanoate, isocetyl isostearate, 2-octyldodecyl dimethyloctanoate, myristyl lactate, Phosphate trioctyldodecyl, diisostearyl malate, succinate di-2-ethylhexyl, diisobutyl adipate, cholesteryl stearate, and the like alkyl benzoate (C12-15).

  Examples of fats and oils include almond oil, avocado oil, olive oil, shea fat, shea fat oil, white birch oil, evening primrose oil, chamomile seed oil, camellia oil, babas oil, peanut oil, rosehip oil, wasabi seed oil, etc. Is mentioned.

  Examples of silicones other than highly polymerized methylpolysiloxanes and volatile silicones include methylpolysiloxanes having a polymerization degree of less than 650, methylphenyl silicones, alcohol-modified silicones, and amino-modified silicones.

  The non-aqueous hair cosmetic of the present invention may be in the form of a lotion, but can also be in the form of a spray. In order to make the non-aqueous hair cosmetic of the present invention into a spray form, it may be a pump-type form in which only the non-aqueous hair cosmetic is sprayed, or a non-aqueous hair cosmetic is used as a stock solution and a propellant is added thereto. It is good also as an aerosol-type form which mix | blended and filled the aerosol container.

  As propellants used for aerosol type sprays, liquefied petroleum gas (LPG), dimethyl ether, liquefied gas such as a mixture; compressed gas such as nitrogen gas and carbon gas; hydrocarbon compound such as isopentane; These propellants can also be used when an aerosol-type spray is constituted using the non-aqueous hair cosmetic of the present invention as a stock solution. However, when dimethyl ether is used as a propellant, the hair when sprayed tends to absorb moisture, and the effect of making the hair cosmetic of the present invention non-aqueous may be impaired. Therefore, when an aerosol-type spray is constituted using the non-aqueous hair cosmetic composition of the present invention as a stock solution, it is preferable not to use dimethyl ether as a propellant.

  The non-aqueous hair cosmetic of the present invention is preferably used, for example, by a method of applying to hair after styling.

  Hereinafter, the present invention will be described in detail based on examples. However, the following examples do not limit the present invention. In Tables 1 and 2 below, the total amount of each component is shown in% so that the total amount of the non-aqueous hair cosmetic is 100%, both of which are mass%, and the% Is omitted, and only the numerical value indicating the blending amount is displayed. In this example, “%” is based on mass (mass%) unless otherwise specified.

Examples 1-5 and Comparative Examples 1-4
Non-aqueous hair cosmetics of Examples 1 to 5 and Comparative Examples 1 to 4 having the compositions shown in Tables 1 and 2 were prepared.

An aerosol spray is prepared by filling each of the non-aqueous hair cosmetics of Examples 1 to 5 and Comparative Examples 1 to 4 with a propellant (LPG) in a 1: 2 (mass ratio) into an aerosol container. And the evaluation was performed according to the following procedure.

<Fade prevention evaluation>
Prepare a human hair gray hair bundle manufactured by Beaulux Co., Ltd., and 1 g of the hair dye for 1 g of hair bundle ("Oldive 8-50" manufactured by Milbon): 2.5 g for the hair dye Second agent ("Oldive Oxidan 6.0" manufactured by Milbon): A mixture with 2.5 g was applied, and allowed to stand for 30 minutes, then washed with shampoo ("Dies Neue Duy Fresh Luxe Shampoo" manufactured by Milbon). Rinse with water and let dry.

The aerosol type spray using the non-aqueous hair cosmetics of Examples 1 to 5 or Comparative Examples 1 to 4 was treated by spraying 0.1 g to the hair bundle after drying.

  A series of operations of spraying artificial sweat: 0.1 g on the hair bundle (1 g) after the spray treatment, followed by ultraviolet irradiation treatment (irradiating a lamp containing ultraviolet A wave and B wave at room temperature for 120 minutes) is repeated three times. After that, visual fading evaluation and fading evaluation with a color difference meter were performed. For artificial sweat, the composition described in JIS L 0848 [L-histidine hydrochloride (monohydrate): 0.5 g, sodium chloride: 5 g, sodium dihydrogen phosphate (dihydrate): 2 0.2 g, 0.1 mol NaOH: 15 ml (pH 5.5)].

  The visual evaluation of fading of the hair related to the hair bundle treated by the aerosol spray using each non-aqueous hair cosmetic was conducted by Example 1 by one evaluator (the person who performed the measurement with the color difference meter described later). The hair according to the hair bundle treated with the aerosol spray was used as a reference product, and was carried out according to the following criteria.

[Visual discoloration evaluation]
◎: Evaluated that fading was suppressed from the standard,
○: Evaluated as equivalent to the standard,
X: Evaluated that fading was not suppressed from the standard.

  For fading evaluation with a color difference meter, the L value of each treated hair is measured with a color difference meter (“Spectrometer CM-5” manufactured by Konica Minolta Sensing Co., Ltd.), and the non-aqueous hair cosmetic of Comparative Example 1 is used. L value obtained for hair related to hair bundle treated by aerosol spray using other non-aqueous hair cosmetics, with L value obtained for hair related to hair bundle treated by aerosol spray used as a reference value The anti-fading effect of hair treated with each non-aqueous hair cosmetic was evaluated by a value (ΔL value) obtained by subtracting the reference value from the above. A smaller ΔL value calculated means less hair fading. In addition, about the hair which concerns on the hair bundle processed with the aerosol type spray which concerns on Example 5, except the presence or absence of highly polymerized methylpolysiloxane, the hair which concerns on the hair bundle which processed with the aerosol type spray which concerns on Example 3 and the same composition Since the evaluation result of fading by visual observation was the same, the L value was not measured.

<Sensory evaluation>
A plurality of human hair bundles (hair bundles made of human hair having a length of 25 cm and 5 g per hair bundle) collected from the same person were prepared. In each of these hair bundles, Examples 1 to 5 and Comparative Example 1 were prepared. Treatment was carried out by spraying any one of aerosol sprays using 4 to 4 non-aqueous hair cosmetics for about 3 seconds. And the sensory evaluation by three expert evaluators was implemented according to the following reference | standard about the stickiness of the hair which concerns on the hair bundle after a process, and the goodness of a finger.

[No stickiness of hair]
◎: All three evaluators evaluated that they were not sticky.
○: Evaluate that 2 out of 3 evaluators are not sticky,
X: Two or more out of three evaluators were evaluated as sticky.
[Goodness of fingers on hair]
◎: All three of the evaluators evaluated that the fingering was good,
○: Two out of three evaluators evaluated that the finger was good,
X: Two or more out of three evaluators evaluated that the fingering was bad.

  These evaluation results are also shown in Tables 1 and 2.

  As the “highly polymerized methylpolysiloxane” described in Tables 1 and 2, those having a viscosity of 5000 mPa · s when contained in decamethylcyclopentasiloxane at a ratio of 15% by mass were used. In addition, ““ Diethylhexylgylidene malonate (90%) ”“ Tricapryl / glyceryl caprate (10%) ”,“ “Tocopheryl retinoic acid (10%)”, “Tricapril / Caprin” "Glyceryl acid (89%)" "Tocopherol (1%)" and "Arnica flower extract (0.5%)" "Mineral oil (99.5%)" are the numbers in parentheses for each component. It is the mixture which mix | blended in the ratio.

  As shown in Table 1 and Table 2, the aerosol spray containing the non-aqueous hair cosmetics of Examples 1 to 5 in which diethylhexyl syringylidene malonate or a derivative thereof, or Acai coconut fruit oil is blended is treated with these. It can be said that fading can be satisfactorily suppressed from the visual evaluation of the finished hair. This is supported by the fact that the ΔL value in the fading evaluation by a color difference meter of hair treated with an aerosol spray containing the non-aqueous hair cosmetics of Examples 1 to 4 is a negative value. Moreover, in the aerosol type spray containing the non-aqueous hair cosmetics of Examples 3 to 5 further blended with ethyl hexyl methoxycinnamate and hexyl diethylaminohydroxybenzoyl benzoate, the non-aqueous hairs of Examples 1 and 2 in which these are not blended Compared to aerosol-type sprays containing cosmetics, the action of suppressing fading of dyed hair is more excellent.

In contrast, the non-aqueous hair makeup of Comparative Examples 2 to 4 in which diethylhexyl syringylidene malonate and derivatives thereof and acai fruit oil were blended with other materials known to have antioxidant activity Aerosol-type sprays containing materials are inferior in the effect of suppressing fading from visual fading evaluation of hair treated with these, and this is supported by the large ΔL value by fading evaluation by a color difference meter. .

  Moreover, the aerosol-type spray containing the non-aqueous hair cosmetic of Example 5 which mix | blended highly polymerized methylpolysiloxane is compared with the aerosol-type spray containing the non-aqueous hair cosmetic of Examples 1-4 which does not mix | blend this. In addition, it has an excellent effect of suppressing the stickiness of the hair after treatment and improving finger passage.

Claims (3)

A non-aqueous hair cosmetic comprising a mixture of diethylhexyl syringylidene malonate or bisethylhexyl hydroxydimethoxybenzyl malonate , or acai fruit oil , and ethyl hexyl methoxycinnamate and hexyl diethylaminohydroxybenzoylbenzoate . The non-aqueous hair cosmetic according to claim 1 , further comprising a highly polymerized methylpolysiloxane having a degree of polymerization of 650 or more . The non-aqueous hair cosmetic composition according to claim 1 or 2, wherein the non-aqueous hair cosmetic composition has a lotion or spray form.