KR100712255B1 - Washoff Type Cleansing Oil Gel - Google Patents

Abstract

           The present invention is an oil gel in a transparent or translucent formulation with liquid crystals essentially containing polyglycerol fatty acid esters, polyols (polyalcohols), water, large amounts of oil, hydrogenated lecithin. By stabilizing a large amount of oil with liquid crystals, the cleansing effect on make-up is excellent and the viscosity is high enough without using a separate thickener in the water so that it does not flow down and gives a light massage feeling. It is convenient to use because it is washed off by water at the time of washing by phase transition by polyglycerol fatty acid ester.

Polyglycerin fatty acid ester, liquid crystal, oil gel, wash off

Description

Wash-off type cleansing oil gel

The present invention relates to wash-off type cleansing oil gels. More specifically, the present invention relates to oil gels in transparent or translucent formulations using liquid crystals which essentially contain polyglycerin fatty acid esters, polyols (polyalcohols), water, large amounts of oil and hydrogenated lecithin.

The most commonly used cleansing products for removing makeup are emulsion type cleansing creams and lotions. These are w / o type cleansing effects of large amounts of external oils by using a large amount of oils and emulsifiers. It also had the advantage of having a massage effect. However, since it is a w / o type, it is generally a wash-off type that cannot be washed off with water, and then wiped off with a tissue and then wiped with tissue with the trouble of having to wash the second time using an aqueous type cleansing gel again. The physical stimulus produced by this is a disadvantage.

The aqueous type cleansing gel contains a large amount of surfactant and does not contain oil, which is convenient for removing light makeup, but has a disadvantage in that it cannot be used alone after makeup because of its poor removal ability for oil-based cosmetic products.

To remove what is left on the skin after using oil-based cosmetics, cleansing oil using 100% oil has been introduced in Japan for 10 years since oil content, that is, the easier it is to remove.

Recently, this type of cleansing oil has been introduced in Korea, forming a market mainly in Japan. Recently, most of the cleansing oil products introduced are wash-off types, which use almost 100% oil, but also use aqueous cleansing together. There is an advantage to not have to However, there was a disadvantage in that a loss of viscosity due to the application of a puff separately to the oil (low viscosity) in use, or to the eye when flowing by hand or to the floor when applied by hand.

LG Household & Health Park et al. Describe a washable cleansing cosmetic composition containing glyceryl fatty acid esters and polyglycerin fatty acid esters, oil components and water in Korean Patent Publication No. 2003-47458 (Application No. 2001-0077952). The present invention obtains washable cosmetics by adjusting the ratio and content of water and specific liquid oil components, and uses a polyglycerin fatty acid as an emulsifier, but the ratio of emulsion is 2-20%, and the water phase is 80-98% of the total. As it is high, a gelling agent is used in the water phase to obtain the desired viscosity. However, in terms of oil cosmetic removal ability, the higher the ratio of emulsion, the more effective it is expected to have the desired level of oil cosmetic removal power.

In addition, Korean Patent Publication No. 2005-87061 (Application No. 2004-0012268) describes a non-aqueous washable cleansing cosmetic composition comprising a polyglycerin fatty acid ester, hydrogenated lecithin, liquid oil, a moisturizing agent and no water. . This invention is characterized by exhibiting a sense of warmth when contacted with water when used as an anhydrous glycerin formulation, using an aqueous polymer to increase the water phase as a thickener as in the preceding invention. The method of gelling an aqueous phase while containing a large amount of oil has a disadvantage in that it is difficult to secure a high stability formulation according to storage, making it difficult to commercialize.

Therefore, while using a polyglycerol fatty acid ester as an emulsifier to improve the oil cosmetic removal ability using a large amount of oil in order to solve the problems as in the prior invention, it is required to develop a stable formulation even in long-term storage by stabilizing a large amount of oil.

In other words, it can be washed with water while enhancing the cleansing effect for removing makeup, and it is also safe for the skin, excellent in feeling, high viscosity, easy to manufacture, easy to manufacture, and stability over time. This required the development of a cleansing oil gel that could also give a visual effect in a transparent or semi-transparent container with a complete, transparent or slightly translucent.

Accordingly, the present inventors have conducted numerous studies and experiments to solve the above-mentioned problems of the prior art, and as a result, it contains a large amount of oil, but does not contain anionic surfactant, and has a high viscosity cleansing oil gel using liquid crystal formation (Gel). ) Was invented.

Oils have a very low viscosity, and increasing their viscosity to make gels is very important for ease of use. Such gelation methods can be broadly classified into a method using an oil gelling agent and a method using liquid crystal formation. The former is a technology mainly used for lip gloss products, which is very easy to manufacture and has a simple advantage, but in order to use a gelling agent that is transparent and can form a gel, a large amount of expensive gelling agent must be used. Not suitable The best gelling agent to make clear oil gel is Rheopearl TT grade. Rheopearl KL has a good gelling effect and can form a high viscosity with a small content. It is relatively inexpensive than Rheopearl TT grade but is not made of a transparent formulation, so it is difficult to apply to transparent or semi-transparent products.

The method of gelling by forming a structure like a liquid crystal is made according to the selection conditions of the nonionic surfactant, water, polyol and oil, and the preparation ratio of the oil. The polyol is used because the refractive index of water and oil is different. There is a difference in transparency, and there is a difference in viscosity generation depending on the total composition ratio. In addition, the nonionic surfactant used also greatly affects the stability of the production method or long-term storage.

In the present invention, by attempting to gel various oils, the wash-off type (wash-off type) and finally transparent and high viscosity to complete the cleansing oil gel is easy to use, high cleansing effect and excellent stability in long-term storage

The present invention provides a washoff type cleansing oil gel characterized in that the gel is transparent or translucent in appearance, but essentially contains hydrogenated lecithin, polyglycerin fatty acid esters, oils, polyols, and water.

In other words, the present invention is a weir-off type cleansing oil gel, using hydrogenated lecithin as a liquid emulsifier, and containing a large amount of oil, a small amount of water, and a polyol as a nonionic surfactant, while essentially containing a polyglycerin fatty acid ester. It is characterized by forming a gel that is transparent or translucent while having a high viscosity.

 More specifically, hydrogenated lecithin is an essential ingredient for gelation by forming liquid crystal in the present invention, and all of phosphatidylcholine (% of PC) in phospholipid can be used, but preferably 20 or more. 60 or more are more preferable in order to improve transparency by high temperature long-term storage. Various grades from different companies are available, for example Lecinol S 10 (PC containing 20%), Lipoid S 75-3 (PC containing 75%), Basis LP 20H (PC containing 25 ~ 35%), Basis LP 20HR (PC containing 25-35%, purified), Basis LS60HR (65-75% PC-containing, purified). These hydrogenated lecithins do not have good solubility in oil or water, so they must be heated to a high temperature, that is, over 75 degrees Celsius, and avoid rapid temperature control during the cooling process. Also known. Although it is an expensive raw material, the hydrogenated lecithin in the present invention can obtain a sufficient effect even when used at 4% or less, preferably 3% or less, based on the total weight of the composition, so it is not a problem from an economic point of view.

Conventionally, polyglycerol fatty acid esters have been mainly used as nonionic surfactants. The most commonly used nonionic surfactant for making wash-off cosmetics or gels is polyoxyethylene alkyl ether, a representative example of this structure is Emalex OD25 (octyldodeceth-25) from Nippon Ethyl. However, to make gel-type cleansing products of high viscosity using these surfactants, at least 10%, preferably at least 16%, of nonionic surfactants should be used, based on the total amount of the composition. The price is also high, so it is not easy economically. In addition, since it has a polyoxyethylene group, the stability is poor due to the change in solubility with temperature, and the viscosity is considerably lost at around 40 ° C. In the above storage conditions, the viscosity is completely reduced like water. There was a problem in commercialization because phase separation was not recovered.

On the other hand, the polyglycerol fatty acid esters used in the present invention can be formed into gels such as hydrogenated lecithin even when a mixture of various grades is used in an amount of 10% or less, preferably 8% or less, more preferably 5% or less, based on the total amount of the composition. Since it is sufficient to achieve a desired purpose with the use of a small amount of surfactant, it is more desirable for skin safety and economics. In the present invention, the polyglycerol fatty acid ester is capable of molecular design of a wide range of HLB compared to other nonionic surfactants, has a low HLB change with temperature, has excellent salt resistance and acid resistance, and has a high stability as a basic derivative as a natural derivative. In addition, it is widely used in the food field. Polyglycerol fatty acid esters can be used in a variety of grades from a variety of companies, but can be made with superior physical cleansing oil gels using the Sunsoft Q-Y series and the Sunsoft A-E Series (solar chemicals). Sunsoft AE series is a polyglycerol fatty acid ester made by diglycerin crosslinking method, and has a narrow distribution at a specific degree of polymerization. Sunsoft QY series is synthesized by glycidol ring-opening method. It is characteristic.

The polyfatty ester used in the cleansing gel of the present invention is polyglyceryl-10 caprate, polyglyceryl-10 laurate, polyglyceryl-10 dilaurate ( polyglyceryl-10 dilaurate, polyglyceryl-10 oleate, polyglyceryl-10 dioleate, polyglyceryl-10 stearate, polyglycerol One or two or more of polyglyceryl-10 isostearate, polyglyceryl-10 diisostearate and polyglyceryl-5 laurate, poly Glyceryl-5 dilaurate, polyglyceryl-5 myristate, polyglyceryl-5 trimyristate, polyglyceryl-5 oleate (polyglyceryl-5 oleate), polygly Polyglyceryl-5 dioleate, polyglyceryl-5 trioleate, polyglyceryl-5 steate, polyglyceryl-5 tristearate polyglyceryl-5 tristeate), polyglyceryl-5 hexasteate (polyglyceryl-5 hexasteate) is characterized by using a mixture of one or two or more selected from. The former polyglyceryl-10 series corresponds to the Sunsoft Q-Y series for solar chemicals and the latter polyglyceryl-5 series corresponds to the Sunsoft A-E series for solar chemicals.

The oil used in the present invention is an oil component generally used as a component of cosmetics, pharmaceuticals, etc., such as nonpolar hydrocarbons, triglycerides, higher alcohol higher fatty acid esters, higher alcohols, higher fatty acids, Animal and vegetable fats and oils, cholesterol fatty acid esters, silicone oils, and the like, for example, liquid paraffin, hydrocarbons such as squalane, triglycerides such as caprylic / capric triglycerides, isopropyl myristate, isopropyl palmitate, Octyldodecyl myristate, cetyl 2-ethylhexanoate, isopropyl stearate, trioctanoin, diethoxyethyl lycinate, octyl rotsinate, neopentyl glycol dicaprate, isostearyl iso stearate, isononyl isonono Esters such as nanoates, castor oil, olives 1, 2 or more of oils, such as oil, avocado oil, palm oil, sunflower oil, dimethyl polysiloxane, methyl phenyl polysiloxane, diphenyl polysiloxane, octa methyl cyclo tetrasiloxane, deca methyl cyclo pentasiloxane, methyl polysiloxane, etc. Mixtures of species or more may be used. It is preferable to use a mixture of two or more types rather than one type alone in terms of feeling of use and spreading properties as well as economics. The one or two or more oils are usually blended at least 30%, preferably at least 50%, based on the total amount of the composition in the present invention.

The polyols used in the present invention can be any kind generally used as components of cosmetics and pharmaceuticals. For example, glycerin, 1,3-butylene glycol, propylene glycol, polyethylene glycol, sorbitol, or the like, one or a mixture of two or more thereof is used. In the present invention, in particular, in the gel formation using liquid crystals, it was found that different compositions affect transparency, gel formation ability, spreadability, etc. according to which polyol mixture is used, and wash-off type transparent cleansing oil gel at different composition ratios. Although it was made, it was found that it is easy to obtain the desired physical properties, especially in the combination of propylene glycol and glycerin. The polyols in the present invention are at least 5%, preferably at least 8% relative to the oil gel.

In the present invention, the water used is purified water, preferably not more than 10% with respect to the oil gel.

In this invention, the said component can be combined and a fragrance | flavor, dye, pigment | dye, preservative, fungicide, antioxidant, pearl agent, various cosmetic agents, etc. can be mix | blended suitably.

Hereinafter, preferred embodiments of the present invention are presented. However, the following examples are merely to help the understanding of the present invention is not limited to the following examples.

Method for producing a cleansing oil gel composition using a liquid crystal according to the present invention is as follows.

First, liquid oils, nonionic surfactants and hydrogenated lecithin are added to the oil phase and heated to 75 degrees. When it reaches 75 ℃, melt it while maintaining the temperature until it is completely dissolved while stirring. Add water and polyol to the aqueous phase and stir to ensure complete mixing and heat to 75 ℃.

Add the aqueous phase to the oil phase with stirring.

Examples 1-5, Comparative Examples 1-4

Cleansing formulations of Examples 1-5 and Comparative Examples 1-4 were prepared with a composition as described below.

Example 1

<Award>

Glycerin 13%

Purified Water 4%

Propylene Glycol 1%

<Payment>

Caprylic / Capric Triglyceride 40%

Floating paraffin 37%

Hydrogenated lecithin 1.5%

Polyglyceryl-10 Dimyristate 2%

Polyglyceryl-10 Dioleate 1%

Polyglyceryl-5 Tetrastearate 0.5%

Example 2

<Award>

Glycerin 13%

Purified Water 4%

1,3-butylene glycol 1%

<Payment>

Caprylic / Capric Triglyceride 40%

Floating paraffin 37%

Hydrogenated lecithin 1.5%

Polyglyceryl-10 Dimyristate 2%

Polyglyceryl-10 Dioleate 1%

Polyglyceryl-5 Tetrastearate 0.5%

Example 3

<Award>

Glycerin 14%

Purified water 6%

<Payment>

Cetyl 2-ethylhexanoate 30%

30% of liquid paraffin

Squalane 11%

Olive oil 3.6%

Hydrogenated lecithin 3.0%

Polyglyceryl-10 Diisostearate 1.5%

Polyglyceryl-10 Dilaurate 0.5%

Polyglyceryl-5 hexastearate 0.4%

Comparative Example 1

<Award>

Purified Water 4%

<Payment>

8% oil gelling agent (Rheopearl TT)

24% floating paraffin

Cetyl 2-ethylhexanoate 16%

Squalane 8%

Octyl Dodecanol 16%

Trioctanoine 8%

PEG-40 sorbitan tetraoleate 16%

Comparative Example 2

<Award>

Octyldodeceth-25 16%

Glycerin 16.8%

7.2% of water

<Payment>

Trioctanoine 60%

Comparative Example 3

<Award>

Purified water 0.3%

<Payment>

Cetyl 2-ethylhexanoate 50%

Caprylic / Capric Triglycerides 20%

Olive Oil 12%

Floating paraffin 7%

POE (30) Sorbitol Tetraoleate 10.7%

Comparative Example 4

<Award>

Purified Water to 100%

Glycerin 5% 1,3-butylene glycol 3%

Methyl Paraben 0.6%

EDTA-3Na 0.5%

Cabopol 0.1%

TEA 0.14%

Phenoxy ethanol 0.2%

<Payment>

Stearyl Acid 0.3%

Cetyl alcohol 0.8%

Arasel-163 1.2%

40% of liquid paraffin

Olive oil 5%

Twin 60 2%

Comparative Example 5

<Award>

Purified Water to 100%

Glycerin 3% 1,3-butylene glycol 5%

Carboxymethylcellulose 0.2%

Carbomer 0.6%

Calcium Hydroxide 0.3%

Preservative 0.15%

<Payment>

Polyglyceryl (1) mono stearate 10%

Trioctanoine 6%

Cyclomethicone 3%

Comparative Example 6

<Award>

Glycerin 40%

DPG (dipropylene glycol) to 100%

Carboxymethylcellulose 0.2%

Carbomer 0.2%

Triethanolamine 0.2%

Preservative 0.15%

<Payment>

Polyglyceryl (1) mono stearate 10%

Hydrogenated Lecithin 5%

Cyclomethicone 3%

Dimethicone 10%

<Stability Evaluation>

Stability evaluation was performed on the products prepared according to the above Examples and Comparative Examples. As a method for evaluating the stability, the phase separation phenomenon was visually determined at 40 degrees, 45 degrees and one month after freezing storage, and the results are shown in Table 1.

(Good: O, Instability: X)

[Table 1] Evaluation of stability according to storage conditions

Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 6 40 degrees O O O X X X 45 degrees O O O X X X frozen O O O O X X

In Table 1, the most difference between the Examples and Comparative Examples is the phase stability at high temperature, that is, 40 and 45 degrees storage conditions. In other words, in the stability evaluation between the product of the comparative example and the product of the Example it was found that the stability is superior to the comparative examples 1,2,3.

       <Customer Sensory Test>

       Thirty female 20 to 40 year old customers were evaluated for each evaluation item. Evaluation was performed beforehand in the same level of makeup as usual. The products of Comparative Examples and Examples were used on the face according to the general usage to evaluate the most important cleansing power, washability against water when used alone, and application and drainage (feeling).

The evaluation score was very satisfied 5 points, satisfied 4 points, normal 3 points, bad 2 points, very bad 1 point was calculated by the following equation and the results are shown in Table 2.

Overall score = ((Very satisfied) x5 + (Satisfied) x4 + (Normal) x3 + (Unsatisfied) x2 + (Very satisfied) x1) / Evaluation

[Table 2] Customer sensory test

Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Cleansing power 4.4 4.3 4.2 4.4 4.2 3.6 Washability 4.3 4.3 4.3 4.2 2.0 4.2 Feeling 4.0 3.9 3.0 2.5 4.1 3.5

The cleansing oil gel of the present invention obtained as described above has a transparent or translucent appearance, has good temperature stability, excellent cleansing power and excellent washing property with water when washed, and has a high viscosity due to its gel type. It did not flow down, but when rubbed by hand by gel formation by liquid crystal formation, the spreadability was excellent, and spreadability was good, and it was excellent in various evaluation.

<Viscosity or hardness test>

Viscosity or hardness were measured about the Example and the comparative example. The viscosity was measured using a Brookfield Viscometer, and the measurement conditions were fixed at 12 for 4 spindles and a 1 minute measurement time. However, too high a viscosity when measured with this instrument was measured using Fudoh's Rheometer over the measurement range.

[Table 3] Hardness or viscosity measurement results

Example 1 (hardness) Example 2 (hardness) Comparative Example 1 (viscosity) Comparative Example 2 (Hardness) Comparative Example 3 (viscosity) Immediately after manufacture 27 66 205 P 20 0 P 4 weeks (45 ℃) 27 60 175 P Liquid Separation Unmeasurable phase separation 0 P 4 weeks (-10 ℃) 30 69 282 P 7  0 P

As can be seen in Table 3, Examples 1 and 2 were measured by hardness due to high viscosity, and are stable at long-term storage under high temperature and low temperature conditions, which can give a light massage effect without flowing down when used to remove actual makeup. There was an advantage. In the case of Comparative Example 1, surface liquid separation was observed at high temperature storage, the viscosity decreased at high temperature storage conditions, and the stability decreased at low temperature storage conditions. In Comparative Example 2, the hardness was initially high, but the hardness was inevitably measured. However, the stability was insufficient such that phase separation occurred during high temperature storage and measurement was impossible. Comparative Example 3 was the same as water had the lowest value when measuring the viscosity and did not change the value at high temperature, low temperature storage conditions, but because of the low viscosity had a drawback when used for the actual makeup removal.

The washoff type cleansing oil gel according to the present invention is a cleansing oil gel made by mixing a specific nonionic surfactant with hydrogenated lecithin, liquid oil, water and a polyol. It is easy to use because it does not flow down when used on the face, and it does not have a tissue off after use, so it has an excellent feature that can be easily washed off by water to minimize the physical irritation that can occur during tissue off.

Claims (8)

Appears to be a transparent or translucent gel, while being formulated with hydrogenated lecithin and polyglycerin fatty acids. Essentially contains a ster, oil, polyol, and water, wherein the polyglycerol Fatty acid esters are polyglyceryl-10 caprate, polyglyceryl-10 laurate, poly Liglyceryl-10 Dilaurate, Polyglyceryl-10 Olate, Polyglyceryl-10 Dioleate , Polyglyceryl-10 stearate, polyglyceryl-10 isostearate, polyglycol Polyglyceryl-5 and one or two or more selected from riseryl-10 diisostearate Laurate, polyglyceryl-5 dilaurate, polyglyceryl-5 myristate, polyglycol Riseryl-5 Trimyristate, Polyglyceryl-5 Olate, Polyglyceryl-5 Diolei , Polyglyceryl-5 Trioleate, Polyglyceryl-5 Stearate, Polyglyceryl-5 1 or 2 selected from tristearate, polyglyceryl-5 hexastearate Simultaneous use of a mixture of phases, the polyols being glycerin, 1,3-butylenegly 1 or 2 selected from coll, propylene glycol, polyethylene glycol and sorbitol Wash off type cleansing oil gel, characterized in that the mixture of the phases. delete delete The method of claim 1 wherein the polyglycerol fatty acid ester is in the total of the oil gel Wash off type cleansing oil gel, characterized in that the amount of 2.4 to 10% based on the amount. The method of claim 1, wherein the hydrogenated lecithin is 1.5 based on the total weight of the oil gel. Wash off type cleansing oil gel, characterized in that to use from 4%. The method of claim 1, wherein the oil is commonly used in cosmetics or pharmaceuticals Wash off type cleansing oil gel, characterized in that for using the oil component 30-77% based on the total weight of the oil gel. The method of claim 1 wherein the polyol is commonly used in cosmetics or pharmaceuticals It is characterized by using 5-14% of the oil component based on the total weight of the oil gel. Wash off type cleansing oil gel. The method of claim 1, wherein the water is purified water based on the total weight of the oil gel Wash off type cleansing oil gel, characterized by using 4-10%.