JP2008050335A - First agent for permanent wave - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a milky lotion of first agent for permanent wave imparting good gloss and feeling to hair, having excellent preservation stability. <P>SOLUTION: The invention provides the milky lotion of first agent for permanent wave characterized by comprising following (A), (B), (C), (D), and (E) components. Wherein the agent comprises (A) 0.1-2%.wt. of oil component, (B) 0.01-0.1%.wt. of at least one oleinic acid-based nonionic surfactants selected from sorbitan monooleate, sorbitan sesquioleate and sorbitan trioleate, (C) 0.01-0.3%.wt. of polyoxyethylene oleyl ether, (D) 0.1-1%.wt. of trimethylglycine, and (E) 0.01-0.5%.wt. of diethylenetriaminepentaacetic acid or penta sodium salt of the same. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an emulsion-based permanent wave first agent that is excellent in storage stability and gives a good luster and texture to hair.

  The simplest permanent wave first agent is an aqueous solution of a reducing agent and an alkaline agent. However, since this causes dripping at the time of treatment, it is usual to impart viscosity. For example, in Patent Document 1, viscosity is imparted using various water-soluble polymers. However, water-soluble polymers are problematic in terms of quality because they cause a decrease in viscosity over time due to the coexisting reducing agent and alkali agent.

  For this reason, as in Patent Document 2, viscosity is imparted by emulsification using a higher alcohol or a nonionic surfactant to form a creamy dosage form. However, straight permanents (hair straighteners) that need to fix the hair straightly are preferred to be completely creamy like this, but with permanent waves where hair is wound around a rod etc., operability and permeability It is not preferable. Accordingly, the present situation is that the emulsion is made with a small amount of oil or surfactant, but the emulsion stability is not always good as described later.

  In addition, reducing agents and alkaline agents cause damage to the hair during the treatment, and the hair after the treatment is annoying to consumers due to the loss of luster and the feeling of fingering and moistness. In order to prevent such hair damage, various feel improving agents are blended. For example, in Patent Document 3, liquid paraffin, lanolin, sorbitan monooleate, and polyoxyethylene sorbitan monostearate are mixed to make an emulsion, and a good moist feeling is obtained. Since this was applied, a decrease in viscosity over time was inevitable.

  When viscosity is imparted with a general water-soluble polymer that does not have gel-forming ability other than gelatin, the viscosity decreases due to changes over time and miscibility with oils and fats may be poor. Even if it mix | blends, it will be easy to be in the so-called creaming state which isolate | separates with time and an oil component floats on the surface. Such creaming can easily occur depending on the balance of “solute-water-surfactant-oil” even when emulsified using a nonionic surfactant or the like.

  Thus, as described in Patent Document 4, for example, a method using a nonionic surfactant exhibiting two different HLBs has been suggested, but a relatively troublesome adjustment is required.

  In addition, although it is not a permanent wave agent, Patent Document 5 shows the effect of improving the feel of a combination of an oleic acid nonionic surfactant, a specific anionic surfactant and an oil agent, as in Patent Document 1. Thus, emulsification of specific fats and oils with oleic acid-based nonionic surfactant or polyoxyethylene oleyl ether can contribute to improvement in touch, but at the same time, it has been difficult to satisfy stability over time.

  JP 2006-188441 A   JP 2005-162665 A   Japanese Patent Publication No. 38-3945   JP 2003-40741 A   JP 2003-286126 A   JP 2001-220333 A   JP 2002-255827 A   JP 2003-40735 A

  In view of the above-mentioned problems of the prior art, the present invention is to provide an emulsion-based permanent wave first agent excellent in storage stability that gives a good luster and texture to hair.

A first agent for permanent wave of emulsion containing the following components (A), (B), (C), (D) and (E).
(A) Oil content, 0.1% to 2% by weight
(B) One or more oleic acid-based nonionic surfactants selected from sorbitan monooleate, sorbitan sesquioleate and sorbitan trioleate, 0.01 wt% to 0.1 wt%
(C) Polyoxyethylene oleyl ether, 0.01% to 0.3% by weight
(D) Trimethylglycine, 0.1% to 1% by weight
(E) Diethylenetriaminepentaacetic acid and / or its pentasodium salt, 0.01% to 0.5% by weight

  Further, a permanent wave first agent containing either an anionic surfactant or a cationic surfactant, and finally a permanent wave first agent further containing (hydroxystearic acid / stearic acid / rosinic acid) dipentaerythrityl. One agent is provided.

  The first permanent wave agent of the present invention was an emulsion-based permanent wave first agent that was excellent in storage stability and gave good gloss and texture to the hair.

  The oil component (A) component of the present invention may be solid or liquid at room temperature, natural or synthetic, and any known material can be used depending on the desired feel and texture. For example, coconut oil, castor oil, olive oil, camellia oil, sesame oil, meadow foam oil, jojoba oil, minced oil and other animal and vegetable oils and hardened castor oil derivatives thereof, synthetic triglycerides such as glyceryl trimyristate, lanolin, beeswax, carnauba wax Waxes such as candelilla wax, petrolatum, paraffin, liquid paraffin, liquid isoparaffin, ceresin, squalane and microcrystalline wax, and other derivatives such as cetanol, stearyl alcohol, oleyl alcohol, lauryl alcohol, Higher alcohols such as henyl alcohol and octyldodecanol, higher fatty acids such as oleic acid, lauric acid, stearic acid, palmitic acid and coconut fatty acid, cholesterol and phytosterols Roll acids, octyldodecyl oleate, synthetic esters such as myristyl lactate and isopropyl myristate, other phospholipids such as silicone oils such as methyl polysiloxane and methylphenyl polysiloxane.

  The blending amount of these oils is preferably 0.1% by weight to 2% by weight, and more preferably 0.5% by weight to 1.5% by weight. If it is less than 0.1% by weight, it is difficult to obtain the desired luster and texture. If it exceeds 2% by weight, stability cannot be obtained or it becomes creamy and the operability is deteriorated.

  The oleic acid-based nonionic surfactant which is the component (B) of the present invention is one or more sorbitan derivatives selected from sorbitan monooleate, sorbitan sesquioleate and sorbitan trioleate, of which sesquiolein Acid sorbitan is a mixture of sorbitan monooleate and sorbitan dioleate.

  As these commercially available products, in the case of sorbitan monooleate, Leodol (registered trademark: indicated by (R) below) SP-O10 manufactured by Kao Corporation, EMALEX (R) SPO-100 manufactured by Nihon Emulsion Co., Ltd. and Nikko Chemicals NIKKOL (R) SO-10V, such as sorbitan sesquioleate, rheodol (R) AO-15 made by Kao, EMALEX (R) SPO-150 made by Nihon Emulsion, and NIKKOL (R) SO- made by Nikko Chemicals Examples of sorbitan trioleate such as 15V include Rheodor (R) SP-O30 manufactured by Kao Corporation, Sorbon S-85 manufactured by Toho Chemical Industry Co., Ltd., and NIKKOL® SO-30V manufactured by Nikko Chemicals.

  As a compounding quantity, 0.01 weight%-0.1 weight% are preferable, and 0.02 weight%-0.08 weight% are more preferable. If it is less than 0.01% by weight, good gloss and texture cannot be obtained, and even if it exceeds 0.1% by weight, the effect is not so changed, which is uneconomical.

  The polyoxyethylene oleyl ether which is the component (C) of the present invention is an ethylene oxide adduct of oleyl alcohol, and plays an important role mainly as an oil emulsifier and giving good gloss and texture. Various products are commercially available from several manufacturers depending on the number of moles of ethylene oxide added.

  For example, Nippon Oil & Fats 'Nonion E series, Toho Chemical Industry's Pegnol series, Nihon Emulsion's EMALEX (R) 5 series, Nikko Chemicals' NIKKOL (R) BO series, etc. Each number is generally between 2 and 100.

  These are usually used in combination of a lipophilic material having a low added mole number and a hydrophilic material having a high added mole number. The blending amount is 0.01% to 0.3% by weight, and more preferably 0.05% to 0.2% by weight. If it is less than 0.01% by weight, a good emulsified state, gloss and texture cannot be obtained.

  Trimethylglycine, which is component (D) of the present invention, is a derivative of glycine, an amino acid, and is also called betaine. Usually, it is blended as a component that improves the feel and feel of hair. I found that it greatly contributes to sex.

  As a compounding quantity, 0.1 weight%-1 weight% are preferable, and 0.2 weight%-0.8 weight are more preferable. If the amount is less than 0.1% by weight, the effect cannot be obtained, and if the amount exceeds 1% by weight, the effect does not change so much, which is uneconomical. Commercially available products include those manufactured by Ajinomoto Co. and Asahi Kasei.

  The component (E) of the present invention, diethylenetriaminepentaacetic acid and / or its pentasodium salt, is known as a chelating agent, but in the present invention, it has been found that it greatly contributes to emulsion stability.

  As a compounding quantity, 0.01 weight%-0.2 weight% are preferable, and 0.02 weight%-0.1 weight% are more preferable. If the amount is less than 0.01% by weight, the effect cannot be obtained, and if the amount exceeds 0.2% by weight, the effect does not change so much, which is uneconomical. In addition, as a commercial item of diethylenetriaminepentaacetic acid, there is Kirest (R) PA manufactured by Kirest Corporation. Further, as 40% by weight aqueous solution of diethylenetriaminepentaacetic acid pentasodium salt, there is Kyrest (R) PS manufactured by the same company, which is preferable because it is easier to handle.

  In the present invention, it is preferable to add one of an anionic surfactant and a cationic surfactant to the first agent for permanent wave because the emulsion stability is further increased. As the anionic surfactant, alkyl sulfates, polyoxyethylene alkyl ether sulfates, N-acyl amino acid salts, polyoxyethylene sulfosuccinates, polyoxyethylene alkyl ether carboxylates and the like are preferable.

  As the cationic surfactant, chloride or alkyltrimethylammonium bromide having 12 to 22 carbon atoms is preferable, and cetyltrimethylammonium chloride is more preferable because it is relatively inexpensive.

  Among these anionic or cationic surfactants, alkyl sulfates are particularly suitable because they are inexpensive and have strong emulsifying power. Examples of the alkyl sulfate include sodium lauryl sulfate and triethanolamine lauryl sulfate. The blending amount of any surfactant is preferably 0.01% to 0.5% by weight, and more preferably 0.03% to 0.2% by weight. If the amount is less than 0.01% by weight, the effect cannot be obtained, and even if the amount exceeds 0.5% by weight, the effect does not change so much, which is uneconomical.

  Furthermore, when the first agent for permanent wave in the present invention is blended with (hydroxystearic acid / stearic acid / rosinic acid) dipentaerythrityl as a feel improver, better gloss and texture can be obtained. This is one type of dipentaerythritol fatty acid ester [hexaester of fatty acid obtained from hydroxystearic acid, stearic acid and rosin and dimer of pentaerythritol], and is used for skin care and the like as an oil having water repellency. (Patent Document 5) has been found to give a good gloss and texture to hair as well.

  Examples of commercially available products include Cosmol (R) 168AR manufactured by Nisshin Oilio Group. The amount is preferably 0.005% to 0.1% by weight, more preferably 0.01% to 0.05% by weight. If the amount is less than 0.005% by weight, the effect cannot be obtained, and if the amount exceeds 0.1% by weight, the effect is not so changed, which is uneconomical.

  In addition, in the first permanent wave agent according to the present invention, a part of the polyoxyethylene oleyl ether of the component (C) can be replaced with other polyoxyethylene alkyl ether within a range that does not impair the gloss and texture of the hair. . Examples thereof include polyoxyethylene cetyl ether, polyoxyethylene lauryl ether and polyoxyethylene (C12-14) alkyl ether.

  The blending amount of these polyoxyethylene alkyl ethers is preferably less than 10 times by weight and more preferably less than 6 times by weight with respect to the polyoxyethylene oleyl ether of component (C). When the amount exceeds 10 times, good gloss and texture cannot be obtained.

  In addition, the 1st agent for permanent waves in this invention contains reducing agents, such as a thiol compound and sulfite which are main ingredients, alkali agents, such as ammonia water and monoethanolamine, and a pH buffer agent suitably. These components may be known components that are usually used. Examples of thiol compounds include thioglycolic acid or a salt thereof, cysteine or a salt or derivative thereof, cysteamine or a salt thereof, thiolactic acid or a salt thereof, and thioglycerin. The blending amount is generally 1 to 11% by weight.

  In addition, the first agent for permanent wave in the present invention is an emulsion liquid and has fluidity unlike a creamy dosage form, and its viscosity is roughly measured when measured using a B-type viscosity form at 25 ° C. It is less than 10,000 mPa · s. If it is 10,000 mPa · s or more, it becomes almost creamy and the operability and permeability are poor.

  Furthermore, the first component for permanent wave according to the present invention can be blended with any component used in the normal first component for permanent wave as long as the intended effect is not impaired. For example, a solvent, a moisturizing agent, an antiseptic, a coloring agent, a flavoring agent, an anti-inflammatory agent, an ultraviolet ray preventing agent and the like can be mentioned.

  EXAMPLES Next, although an Example is given and this invention is demonstrated in detail, this invention is not limited to these. The blending amount is% by weight.

Examples and Comparative Examples of the present invention are shown in Tables 1 and 2. In addition, the compounding% in Table 1 and Table 2 is converted into a pure content. The evaluation method is shown below.
(Evaluation methods)
First, the first agent for permanent wave of Examples and Comparative Examples was stored in a thermostatic bath at 45 ° C. for 30 days, and then evaluated as follows.
1. Emulsification stability Evaluate by visual sensory test based on the following criteria.
(Double-circle): There is no change and it is completely stable.
○: A slight creaming tendency is observed, but it is almost stable.
Δ: Some creaming is observed, but within an allowable range.
X: Remarkable creaming is seen and emulsification is broken.
2. Next, about the thing of emulsification stability except evaluation "x", a hair bundle is created using about 5g of hair (made by Katsura Kawamura) about 25 cm in length, and a treatment effect is evaluated.
First, the hair is washed with a 30% aqueous solution of polyoxyethylene (3E.O.) sodium lauryl ether sulfate, and the procedure is as follows.
1) Immerse each permanent wave first agent at room temperature for 15 minutes.
2) Wash with water and towel dry, then immerse in 8% sodium bromate aqueous solution for 10 minutes.
3) After washing with water and towel drying, after drying with a dryer, the treatment effect is evaluated by a sensory test based on tactile sensation. Evaluation is based on the following criteria.
A: Moist, smooth and smooth, very glossy.
○: Moist and smooth and smooth with fingers.
Δ: Moist, smooth, and glossy.
X: Moist feeling, smooth feeling and no gloss.
3. Based on the above evaluation, comprehensive evaluation is performed according to the following criteria.
◎: Excellent, ○: Good, △: Acceptable, ×: Impossible

In addition, the following were used for each component in an Example and a comparative example.
(A) Liquid paraffin: Made by Matsumura Oil Co., Ltd., Moresco White (R) P-70
(A) Mink oil: manufactured by Nikko Rica Co., Ltd. (A) Meadow foam oil: manufactured by Nikko Chemicals Co., Ltd. (A) Jojoba oil: manufactured by Mitsuba Trading Co., Ltd., jojoba (jojoba seed oil)
(A) Oleic acid: manufactured by NOF Corporation, EXTRA OS-85
(A) Behenyl alcohol: Toho BH-65 manufactured by Toho Chemical Industry Co., Ltd.
(A) Stearyl alcohol: manufactured by Kao Corporation, Calcoal (R) 8098
(A) Cetanol: manufactured by Kao Corporation, Calcoal (R) 6098
(A) Lauryl alcohol: NAA-42, manufactured by NOF Corporation
(B) sorbitan monooleate: manufactured by Nikko Chemicals,
NIKKOL (R) SO-10V
(B) Sorbitan sesquioleate: SO-15V
(B) Sorbitan trioleate: SO-30V
(C) Polyoxyethylene oleyl ether (50E.O.): BO-50V
(C) Polyoxyethylene oleyl ether (20EO): BO-20V
(C) Polyoxyethylene oleyl ether (10E.O.): BO-10V
(C) Polyoxyethylene oleyl ether (2E.O.): BO-2V
(D) Trimethylglycine: manufactured by Asahi Kasei Corporation, betaine (E) diethylenetriaminepentaacetic acid pentasodium salt: manufactured by Kirest Corporation
Kirest (R) PS (40%)

Furthermore, the following were used about the other component.
(Anionic surfactant) Sodium lauryl sulfate: manufactured by Nikko Chemicals,
NIKKOL (R) SLS
(Cationic surfactant) Cetyltrimethylammonium chloride:
Made by Toho Chemical Industry Co., Ltd., Kachinal CTC-70ET
(Hydroxystearic acid / stearic acid / rosinic acid) dipentaerythrityl:
Made by Nisshin Oilio Group Cosmall (R) 168AR
Polyoxyethylene cetyl ether (40E.O.): manufactured by Nikko Chemicals,
NIKKOL (R) BC-40TX
Polyoxyethylene cetyl ether (30E.O.): BC-30TX
Polyoxyethylene cetyl ether (20E.O.): BC-20TX
Polyoxyethylene cetyl ether (5.5E.O.): BC-5.5
Polyoxyethylene lauryl ether (25E.O.): BL-25
Ammonium thioglycolate: (Reducing agent) manufactured by Sasaki Chemical Co., Ltd.
50% thioglycolic acid diammonium dithiodiglycolate: (Reaction modifier) manufactured by Sasaki Chemical Co., Ltd.
Containing 40% as dithiodiglycolic acid Cysteine: (Reducing agent) Amminomoto ammonium hydrogen carbonate: (pH buffer) Sumitomo Chemical Co., Ltd. ammonia water: (Alkaline agent) Daiseng Kakko Co., 25% ammonia water

  Examples 1 to 5 are combinations containing all of the components (A), (B), (C), (D) and (E), respectively. The treatment effects are all good, especially (hydroxystearic acid / stearic acid) / Rosic acid) Example 2 blended with dipentaerythrityl was extremely excellent.

  About these emulsion stability, Example 4 containing a cationic surfactant is superior to Example 5 which does not contain anionic and cationic surfactants, and Examples 1 to 3 containing an anionic surfactant. Was even better.

  In Comparative Example 1, the component (D) trimethylglycine of Example 1 was reduced to 0.01%, and the treatment effect could not be confirmed because the emulsion stability was poor and creaming occurred.

  Comparative Example 2 was obtained by reducing the component (E) diethylenetriaminepentaacetic acid pentasodium salt of Example 1 to 0.004%. Like Comparative Example 1, the emulsion stability was poor and creaming occurred, so the treatment effect could be confirmed. There wasn't.

  Comparative Example 3 was obtained by replacing the component (B) oleic acid nonionic surfactant of Example 1 with polyoxyethylene cetyl ether, and the emulsion stability was within an acceptable range. It was not obtained.

  In Comparative Example 4, the component (C) polyoxyethylene oleyl ether of Example 1 was replaced with polyoxyethylene cetyl ether, and the emulsion stability was good, but a good treatment effect was not obtained.

  As described above, each permanent wave first agent shown in Examples 1 to 5 was an excellent first agent for permanent wave having both good emulsification stability and treatment effect.

Claims (3)

A first agent for permanent wave of emulsion containing the following components (A), (B), (C), (D) and (E).
(A) Oil content, 0.1% to 2% by weight
(B) One or more oleic acid-based nonionic surfactants selected from sorbitan monooleate, sorbitan sesquioleate and sorbitan trioleate, 0.01 wt% to 0.1 wt%
(C) Polyoxyethylene oleyl ether, 0.01% to 0.3% by weight
(D) Trimethylglycine, 0.1% to 1% by weight
(E) Diethylenetriaminepentaacetic acid and / or its pentasodium salt, 0.01% to 0.5% by weight   Furthermore, the 1st agent for permanent waves of Claim 1 containing any one of anionic surfactant or a cationic surfactant.   The first agent for permanent wave according to claim 1 or 2, further comprising (hydroxystearic acid / stearic acid / rosinic acid) dipentaerythrityl.