JPH11279031A - Two pack type cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a two pack type cosmetic capable of continuously generating heat on employment and capable of imparting an excellent conditioning effect to skin and scalp by using two kinds of specific agents which generate heat when mixed with each other. SOLUTION: This cosmetic comprises (A) the first agent comprising (i) a compound selected from inorganic salts and inorganic oxides generating heat when mixed with water (preferably divalent metal salts or divalent metal oxides, such as magnesium dichloride or calcium dichloride) and (ii) an oil (preferably a wax, a higher alcohol or an ester oil) and (B) the second agent comprising a polyhydric alcohol (preferably polyethylene glycol having a mol.wt. of 200-600 or propylene glycol). When used, the components A and B are mixed with each other to generate heat. When the cosmetic is used, the components A and B are preferably mixed with each other in a volume ratio of about 5:1 to 1:5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-part cosmetic composition which generates heat when mixed at the time of use, and more particularly, it is excellent in heat build-up when mixed and its durability, and imparts an excellent conditioning effect. The present invention relates to a two-part cosmetic which can be applied to the skin and hair.

[0002]

2. Description of the Related Art Conventionally, treatment cosmetics for the purpose of imparting moisture and smoothness to skin and hair by using the conditioning effect of oils and surfactants to protect and improve the condition thereof have been developed. Although many reports have been made, various studies have been made to further improve the conditioning effect.

Also, cosmetics which generate heat when mixed with water at the time of use are known, and are disclosed in Japanese Patent Application Laid-Open No. 57-75909.
According to the publication, the heat of dilution when in contact with water in the cosmetic,
It is said that a substance that generates heat such as heat of fusion or heat of reaction can be used. Further, many other specific techniques have been disclosed. For example, a conditioning hair cosmetic comprising polyethylene oxide and an alkylene glycol having 2 to 9 carbon atoms as essential components (JP-A-56-7
No. 7216), a gel composition for skin containing a polyhydric alcohol, an anionic polymer compound and a water-soluble nonionic polymer compound (JP-A-2-31408), and water. A hair conditioning composition comprising a mixture of a heat-generating salt and a thickener, and a component which is liquid at 25 ° C., such as polyethylene glycol, in the presence of water at the time of use (Japanese Patent Laid-Open No. 7-698).
No. 35). However, the treatment effect imparted by the conventional heat-generating cosmetics cannot be said to exhibit the heat-generating properties sufficiently, and further improvement is required.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a two-part cosmetic which can improve the conditioning properties on skin and hair by generating heat.

[0005]

Means for Solving the Problems The present inventors have conducted intensive studies in order to solve the above-mentioned problems, and found that a compound selected from inorganic salts and inorganic oxides which generate heat when mixed with water,
In addition, when a cosmetic comprising one agent (A) containing an oil component and two agents (B) containing a polyhydric alcohol mixes these (A) and (B) at the time of use, exothermicity, heat generation The present inventors have found that they exhibit excellent durability and excellent conditioning properties, and have completed the present invention.

That is, the present invention provides a compound (A) containing a compound selected from inorganic salts and inorganic oxides that generate heat when mixed with water and an oil component, and a compound (B) containing a polyhydric alcohol (B). And (A) comes into contact with water or moisture in (B) by mixing (A) and (B) at the time of use, thereby generating a two-part cosmetic. Things.

[0007] According to the present invention, there can be provided a two-part cosmetic composition which generates heat continuously during use and can impart an excellent conditioning effect to skin and hair.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The inorganic salt or inorganic oxide used in the first agent (A) of the present invention may be any as long as it generates heat when mixed with polyhydric alcohol or water derived from the other in the two agents. It is not limited. Here, "generates heat when mixed with water" means that the inorganic salt or inorganic oxide in one agent (A) is mixed with water contained in two agents (B) or water in a polyhydric alcohol. Means that heat is generated due to heat of dissolution, heat of hydration, etc. generated during the heat treatment. Such inorganic salts or inorganic oxides are not particularly limited. For example, salts of divalent metals and salts of divalent metals Oxides are preferred, among which magnesium chloride, calcium chloride, magnesium sulfate, calcium sulfate, calcium carbonate, and calcium oxide are preferred. Anhydrides thereof are particularly preferred, and anhydrous calcium chloride is most preferred. These inorganic salts or inorganic oxides can be used singly or in combination of two or more, and the compounding amount is not particularly limited. For example, the total amount of one or two or more may be used in one agent total amount. On the other hand, 5 to 50% by weight, preferably 10 to
It is 40% by weight, more preferably 15 to 25% by weight. Further, inorganic salts or inorganic oxides have an average particle size of 15%.
It is preferable that the thickness be 0 μm or less, since heat generation is enhanced.

The oil used in the agent (A) of the present invention is not particularly limited as long as it has conditioning properties on hair and skin. For example, olive oil, castor oil, coconut oil, soybean oil Oils and fats such as cottonseed oil, liquid lanolin, lanolin, jojoba oil, waxes such as beeswax, hydrocarbons such as liquid paraffin, squalane, higher fatty acids such as stearic acid and oleic acid, cetyl alcohol,
Oleyl alcohol, higher alcohols such as 2-octyldodecanol, ester oils such as isopropyl palmitate, cetyl octanoate, octyl palmitate, diisobutyl adipate, glyceryl tricaprylate, and glycerin tri (caprylic / capric acid);
Waxes, higher alcohols and ester oils are preferred, and ester oils are particularly preferred. These oils can be used alone or in combination of two or more.
Although not particularly limited, for example, 10 to 75% by weight, based on the total amount of one agent (A), as a total amount of one type or two or more types,
Preferably 20 to 60% by weight, more preferably 30 to 60% by weight.
50% by weight.

The polyhydric alcohol used in (B) of the present invention is a compound having two or more hydroxyl groups in one molecule and may be any commercially available ordinary one such as ethylene glycol and glycerin. , Diglycerin, propylene glycol, polypropylene glycol, dipropylene glycol, sorbit, 1,3-butylene glycol, hexylene glycol, polyethylene glycol, and the like. In particular, 1,3-butylene glycol, propylene glycol, having a molecular weight of 200 to 600 Polyethylene glycol is preferred. Water is usually present in these commercially available polyhydric alcohols. These polyhydric alcohols can be used alone or in combination of two or more, and the compounding amount is not particularly limited. For example, the total amount of one or two or more types is based on the total amount of the two agents (B). At least 80% by weight.

The two-part cosmetic composition of the present invention may contain 20% by weight or less, preferably 10% by weight or less of water in the two parts (B). Further, even when water is not blended, the two-pack cosmetic of the present invention generates heat by the action of the polyhydric alcohol blended in the two packs (B) with water which is present in the industrial raw material from the beginning. One agent of the two-part cosmetic of the present invention (A)
And two agents (B) are about 5: 1 to 1: 5, preferably 2:
It is mixed and used at the time of use in a volume ratio range of 1-1: 2.
For example, at the time of bathing, the first agent (A) and the second agent (B) can be mixed in a desired volume ratio and applied directly to water-deposited or dry skin or hair. Further, the two-part cosmetic of the present invention is a cosmetic that is used while being applied to the skin and hair,
Alternatively, the cosmetic can be washed away with water after being applied and left for a certain period of time.

The two-part cosmetic of the present invention is a two-part cosmetic which is characterized by generating heat by mixing one part (A) and two parts (B) when used. By uniformly mixing and dispersing, it can be manufactured into various forms, and can be used as a body rinse, a hair rinse, a hair treatment, a hair cream, and the like.

The two-part cosmetic composition of the present invention may further include, for example, an anionic surfactant, a cationic surfactant, a nonionic surfactant, and an amphoteric surfactant as long as the effects of the present invention are not impaired. Known components such as surfactants such as agents, polymeric silicones and silicone derivatives, thickeners, preservatives, antioxidants, ultraviolet absorbers, sequestering agents, fragrances, and dyes may be appropriately blended.

[0014]

Next, the present invention will be described with reference to examples. However, the present invention is not limited to these examples, and can be carried out by appropriately changing the scope of the invention without changing its gist. is there. In the following, “%” indicates “% by weight”.

In accordance with the formulations of Examples 1 to 3 and Comparative Examples 1 to 4 shown in Table 1 below, hair treatments and body rinses of Examples 4 and 5 and Comparative Examples 5 to 7 shown in Table 2 were prepared. Five panelists were used in the usual manner to evaluate the heat generation and the usability. 1. Heat generation evaluation (1) Evaluation items i) Heat generation effect ii) Heat generation persistence effect (2) Criteria ○: 3 or more evaluated as “effective” Δ: 2 evaluated as “effective” ×: 1 or less "Effective" rating

2. Evaluation of feeling of use (1) Evaluation items i) Flexibility of hair ii) Moisturizing feeling to skin (2) Criteria ○: 3 or more evaluated as “good” Δ: 2 evaluated as “good” ×: 1 2. The following is evaluated as “good” Overall evaluation ：: All evaluations of 発 熱, 発 熱, 持 続 持 続 ま た は ま た は 湿 ま た は 湿 ま た は ま た は ○ ○ 評 価 ○ ×: Other than ○ in the above. Tables 1 and 2 show the evaluation results.

[0017]

[Table 1]

[0018]

[Table 2]

As is evident from Tables 1 and 2, the two-part cosmetics of the present invention exhibited a good heat-generating effect, a long-lasting effect, and an excellent conditioning effect when applied to skin or hair.

Example 6 Hair Treatment <1 Agent> Ingredients Amount (%) Cetyl Octanoate 50.0 Lanolin 10.0 Stearyl Trimethylammonium Chloride 5.0 Calcium Chloride 20.0 Silic Anhydride 5.0 Highly Polymerized Methyl Polysiloxane (average molecular weight: 5000) 2.0 Methyl polysiloxane (20 cs) 8.0 Total 100.0 <2 agents> Ingredients (%) Propylene glycol 97.0 Lauryl betaine 3.0 Total 100.0 The above formula A hair treatment is prepared according to
The two agents were mixed at a ratio of 1: 1 and applied according to the usual method of using hair treatment. As a result, it was confirmed that the composition was excellent in heat generation, heat generation persistence, and hair conditioning.

Example 7 Body Rinse <1 Agent> Ingredient Content (%) 2-octyldodecanol 18.0 Tri (caprylic / capric acid) glycerin 20.0 Salami beeswax 10.0 Sorbitan monolaurate 8.0 Magnesium chloride 40.0 Methyl polysiloxane 4.0 Total 100.0 <Two agents> Ingredients (%) 1,3-butylene glycol 90.0 Polyoxyethylene (60EO) hydrogenated castor oil 10.0 Total 100. 0 A body rinse was prepared according to the above formula, and one agent: two agents were mixed at a ratio of 1: 5, and applied according to the usual method of using body rinse, and it was excellent in heat buildup, heat buildup and moisturizing effect on skin. That was confirmed.

Example 8 Hair Cream <1 Agent> Ingredients Amount (%) Isopropyl Palmitate 55.0 Vaseline 10.0 Self-Emulsifying Glycerin Stearate 5.0 Anhydrous Calcium Chloride 20.0 Highly Polymerized Methylpolysiloxane (Average) Degree of polymerization n = 5000) 1.5 Methyl polysiloxane (20 cs) 8.5 Total 100.0 <2 agents> Components Compounding amount (%) Polyethylene glycol (molecular weight 400) 85.0 Polyethylene glycol (molecular weight 4000) 5.0 Water 10.0 Total 100.0 A hair cream was prepared according to the above formula, and 1: 1 mixture was mixed at a ratio of 5: 1. The mixture was applied according to the usual method of using a hair cream. It was confirmed that the hair had excellent conditioning properties.

[0023]

According to the present invention, it is possible to provide a cosmetic which generates heat by mixing two agents at the time of use, has a high effect of maintaining the heat generation, and imparts an excellent conditioning effect to skin and hair.

Continued on the front page (51) Int.Cl. ⁶ Identification code FI A61K 7/08 A61K 7/08 7/48 7/48

Claims (4)

[Claims] 1. One agent (A) containing a compound selected from an inorganic salt and an inorganic oxide which generates heat when mixed with water, and two agents (B) containing a polyhydric alcohol and an oil component.
A two-part cosmetic which generates heat by mixing (A) and (B) during use. 2. The exothermic inorganic salt or inorganic oxide in one agent (A) is selected from the group consisting of divalent metal salts and divalent metal oxides. Two-part cosmetics. 3. The heat-generating inorganic salt or inorganic oxide in one agent (A) is selected from the group consisting of magnesium chloride, calcium chloride, magnesium sulfate, calcium sulfate, calcium carbonate, and calcium oxide. The two-part cosmetic according to any one of claims 1 and 2. 4. The polyhydric alcohol in the two agents (B) is selected from the group consisting of polyethylene glycol having a molecular weight of 200 to 600, propylene glycol, and 1,3-butylene glycol. 1 to
4. The two-part cosmetic according to any one of the above items 3.