JPH0816047B2 - Translucent liquid cosmetics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a liquid cosmetic which is semi-transparent in appearance, and more specifically, in which no alcohol is blended, that is, in a non-alcoholic cosmetic, a lipophilicity of HLB 7 or less. With surfactant, HL
A cosmetic that is obtained by properly blending a hydrophilic surfactant of B8 or higher and an oil component, and the degree of translucency can be adjusted, and the translucency does not change even during long-term storage over a wide range. Regarding fees.

[Conventional technology]

Conventionally, water / alcohol liquid cosmetics composed of water, alcohol, moisturizers, etc. have been widely used for lotions, hair styling agents, shaving lotions, etc., but most of them are transparent in appearance.

Although it is a small example, there is a non-transparent type, which is a material that is in a two-phase state (oil phase and water phase, etc.) when standing and is shaken temporarily to make it cloudy.

On the other hand, alcohol is blended in order to give a refreshing feeling to the user, but some users are sensitive to this alcohol and cause temporary skin irritation. Therefore, a non-alcohol lotion is desired and commercially available for people with alcohol sensitivity. It may have a semi-transparent to cloudy appearance with lotion and have a texture. Until now, ethanol has always been added to semi-transparent liquid cosmetics in order to improve the solubility of the active agent and oil content and the antiseptic effect.

[Problems to be solved by the invention]

In consideration of such a situation, the present inventor has a constant translucency even after long-term storage in a wide temperature range, and the transparency can be adjusted by a non-alcoholic system that is not transiently stimulated by alcohol. The present invention has been completed as a result of intensive studies to develop a translucent liquid cosmetic.

[Means for solving problems]

That is, the present invention is a non-alcoholic, HLB7 or less lipophilic surfactant, HLB8 or more hydrophilic surfactant, contains oil and water, the content of oil is 3% or less,
A semi-transparent liquid cosmetic characterized in that the total content of the lipophilic surfactant and the hydrophilic surfactant is equal to or more than the oil content and the transparency is 20 to 95% with respect to distilled water. Is.

 Hereinafter, the present invention will be described in detail.

In the present invention, it is difficult to dissolve the surfactant because no alcohol is blended. Therefore, in the system of the present invention, a production method is adopted in which a surfactant is dissolved in a moisturizer together with an oil and added to the aqueous phase.

HLB7 or less lipophilic surfactant used in the present invention, sorbitan monooleate, sorbitan sesquioleate, sorbitan trioleate, sorbitan monoisostearate, sorbitan fatty acid esters such as sorbitan sesquiisostearate, glyceryl distearate, Glyceryl monooleate, diglycerin monooleate, diglycerin dioleate, decaglycerin pentaoleate, decaglycerin pentaisostearate, diglycerin diisostearate, decaglycerin decaisostearate, decaglycerin pentaisostearate, etc. And castor oil derivatives of polyethylene glycol fatty acid ester POE (3 to 10 moles) such as POE (2) monooleate and the like.

The amount of the lipophilic surfactant is 0.02: 1 to 1: 1 in the ratio with HLB8 or more hydrophilic surfactant, preferably 0.05: 1.
It is ˜0.5: 1, and when the compounding amount is less than the above ratio, it tends to become transparent with time, and when the compounding amount exceeds the above ratio, the translucency increases with time, which causes turbidity.
The above lipophilic surfactants can be used alone or in combination of two or more kinds.

As the hydrophilic surfactant used in the present invention, there are anionic, cationic, and POE-added nonionic surfactants, but the POE-added nonionic surfactant whose translucency is most easily adjusted is the most preferable.

As the POE-added nonionic surfactant used in the present invention, there are POE-branched alkyl ether type POE2 octyldodecyl artel (EO addition 10 to 25 mol), POE decyl tetradecyl alcohol (EO addition 10 to 30 mol), and POE alkyl. Ether type POE oleyl ether (EO addition 10-50
Mol), POE cetyl ether (EO addition 10-30 mol), POE
Sorbitan ester type POE sorbitan monooleate (EO addition 20-30 mol), POE sorbitan monoisostearate (EO addition 10-30 mol) and POE dihydrocholesterol ether (EO addition 10-30 mol) or POE
Castor oil derivatives (EO addition 20 to 60 mol) and the like can be mentioned.

The content of the surfactant is 0.05 to 3% by weight,
If it is less than%, it is difficult to obtain a good semi-transparent region, and
When it is blended in excess of 3% by weight, it is not sticky in terms of usability. The above-mentioned surfactants can be used alone or in combination of two or more kinds.

The oil used in the present invention includes animal and vegetable oils and fats such as beef tallow, squalane, olive oil, evening primrose oil, rice bran oil and hydrocarbons, mineral oils such as liquid paraffin, isopropyl myristate, ester oils such as pentaerythritol tetra-2-ethylhexanoate. It is generally used in the cosmetics, pharmaceutical, food and other industries such as silicone oil such as methyl phenyl silicone, dimethyl silicone and cyclic silicone, synthetic alcohol such as 2 octyldodecanol and 2 decyl tetradecanol, and natural alcohol such as oleyl alcohol. Among the oils that are present, those that are liquid at room temperature can be mentioned.

When the oil is considered to be the substance to be solubilized, the nonpolar oil is less likely to be solubilized than the polar oil. The oil used in the present invention is also preferably a polar oil, and IOB (Inorganic and Oranic)
When considering the balance; Note 1 below as an index, it is 0.1 or more, more preferably 0.2 or more.

(Note-1) IOB: "Chemistry" Vol. 11, No. 10, pp. 179-725,
Ratio of inorganic and organic values calculated according to the calculation method by Fujita shown in 1957.

The oil content is 0.01 to 3% by weight, preferably 0.01 to 2% by weight, based on the total amount of the lotion. When the oil content is more than 3% by weight, a large amount of surfactant must be mixed in order to obtain a good translucent region, which is not preferable from the viewpoint of safety and usability.

The oil used in the present invention may be used alone or in combination of two or more kinds.

Solubility is easier with a polar oil content of IOB = 0.2 or more, but considering the long-term stability, this polar oil content and IOB =
It is preferable to mix a less polar oil content of 0.2 or less.
Regarding the ratio of the surfactant and the oil component, it is preferable to mix the surfactant in the same amount or more with respect to the oil component. That is, if the amount of the surfactant is small, a microemulsion cannot be formed, and the desired semitransparency with little change over time cannot be obtained.

In the present invention, the term “translucent” means that the transparency is 20 to 95 when the transparency of water is 100. Generally, what is called a transparent cosmetic has a transparency of 96 or more, and a milky cloudy emulsion has a transparency of 15 or less.

Further, regarding the measurement of transparency, the present inventors use a digital color difference calculator manufactured by Suga Test Instruments Co., Ltd., and measure the transparency of distilled water as 100 as a control.

In the semitransparent liquid cosmetic of the present invention, other components such as a fragrance, a colorant, a humectant, an antiseptic, and a water-soluble polymer substance may be added, if necessary, so long as they do not interfere with the purpose. it can.

〔Example〕

 The present invention will be described below with reference to examples.

Example 1, Comparative Examples 1 to 3 As shown in Table 1, in Example 1 in which the ratio of EOP (60 mol) hardening and the oil of masi oil and diglycerin diisostearate was 1: 0.1, the change in transparency with time was observed. Was not observed, and the one with a transparency of 89 immediately after the trial was good after one month with little change under each condition. On the other hand, in Comparative Example 1 in which the ratio of the surfactant was less than the ratio, an increase in transparency was observed in the high temperature range and the translucency could not be maintained. The tendency was to decrease and turbidity was observed, and separation was observed in the high temperature range. Further, in Comparative Example 3 in which the amount of the surfactant blended was small, oil floating was observed and a stable product could not be obtained.

Example 2 (wt%) Ion-exchanged water to 100 1.3 Butylene glycol 3 Propylene glycol 3 POE (20 mol) Sorbitan monooleate 0.8 POE (30 mol) Dihydrocholesterol ether 0.2
Sorbitan monooleate 0.3 2-decyltetradecanol 1.0 Sodium pyrrolidonecarboxylate 0.5 Aspartic acid 0.05 Sodium citrate 0.10 Chlorhexidine gluconate (20% solution) 0.1 Perfume 0.05 (Production method) After the dissolution, a moisturizing agent phase obtained by heating ,,,,,,,, of 70, and was uniformly dissolved, and the mixture was stirred and mixed to obtain a semitransparent lotion. The transparency of this product was 40, which was good with little change in transparency over time.

Example 3 (wt%) Ion-exchanged water to 100 POE (20 mol) sorbitan monooleate 0.5 diglycerin diisostearate 0.1 sorbitan sesquiisostearate 0.1 oleyl alcohol 0.2 squalane 0.05 dipropylene glycol 5 maltitol 5 aspartic acid 0.04 L-Arginine 0.1 Sodium hexametaphosphate 0.05 Carboxyvinyl polymer 0.2 Perfume 0.1 (Production method) Add ,,, to A: and dissolve uniformly.

Add B ,,,,, and to dissolve uniformly.

B was added to A and mixed with stirring to obtain a translucent viscous liquid cosmetic composition. The transparency of this product was 55, and there was little change in transparency over time, which was good.

Example 4 (wt%) Ion-exchanged water to 100 propylene glycol 3 POE (20 mol) oleyl ether 0.3 Oleic acid 0.2 Decaglycerin pentaisostearate 0.1 Vitamin E acetate 0.05 Glycerol-tri-2-ethylhexanoate
3 Citric acid 0.02 Sodium citrate 0.06 EDTA-3Na 0.05 Aminomethylpropanol 0.05 Glycerin 10 Sodium dihydroacetate 0.1 Oxybenzophenone 0.01 Dimethoxycinnamic acid Ethyl hexanoate Glyceryl 0.
01 Butylmethoxybenzoylmethine 0.01 (Production method) Add ,,,, to A: and dissolve uniformly.

To B: ,,,,,, are added and dissolved uniformly. (70-80 ° C.) B was added to A and mixed with stirring to obtain a semi-transparent lotion. The transparency of this product was 30 and it was good with little change in transparency over time.

Example 5 (wt%) Ion-exchanged water to 100 Sorbitol 5 1,3 Butylene glycol 10 POE (25 mol) Cetyl ether 2.5 Sorbitan monoisostearate 0.5 Oleyl alcohol 2 Olive oil 0.5 Lactic acid 0.02 Sodium lactate 0.1 Monoammonium berytyllithinate 0.1 Phenyl Benzimidazole sodium sulfonate
0.1 Trimethylbehenylammonium chloride 0.1 Dye Appropriate amount (Production method) Add A ,,,, to A: and dissolve uniformly.

To B: ,,, and are added and dissolved uniformly. (70
-80 ° C) B was added to A and mixed with stirring to obtain a semitransparent lotion. The transparency of this product was 20, and there was little change in transparency over time, which was good.

 ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-56-24477 (JP, A) JP-A-55-25430 (JP, A) JP-A-61-100509 (JP, A) JP-A-56- 55306 (JP, A) JP 61-37709 (JP, A) JP 58-206509 (JP, A) Hirota Hiroshi, "Fats and surfactants for cosmetics" Koshobo (Showa 45) P. 150- 151 Sadaura Okano, "New General Pharmacy (Revised 3rd Edition)" Nankodo Co., Ltd. (April 10, 1987) P. 64-65

Claims (2)

[Claims] 1. A lipophilic surfactant containing an HLB of 7 or less, a hydrophilic surfactant of HLB of 8 or more, an oil and water, wherein the content of the oil is 3% or less. A semi-transparent liquid cosmetic, wherein the total content of the hydrophilic surfactant and the hydrophilic surfactant is equal to or more than the oil content, and the transparency is 20 to 95% with respect to distilled water. 2. The translucent liquid cosmetic composition according to claim 1, which contains substantially no ethanol.