CN114795980B - Bicontinuous phase cleansing lotion and preparation method thereof - Google Patents

Abstract

The invention discloses a bicontinuous phase cleansing lotion and a preparation method thereof, wherein the cleansing lotion comprises the following components in percentage by weight: 10-30% of a surfactant, wherein the surfactant comprises a nonionic surfactant and an anionic surfactant, the proportion of the nonionic surfactant in the cleansing liquid is 10-30%, and the proportion of the anionic surfactant in the cleansing liquid is 0.1-5%; 5-30% of grease; 5-40% of polyalcohol; water, balance. The invention innovatively uses the nonionic surfactant to match the anionic surfactant to construct a bicontinuous phase system, and matches a proper amount of grease and polyalcohol, the obtained bicontinuous phase has the characteristics of high transparency, high stability and high makeup removing capability, and the special microemulsion structure of the bicontinuous phase can be verified by a pigment method, and simultaneously, the bicontinuous phase has good makeup removing capability and fresh skin feel after washing.

Description

Bicontinuous phase cleansing lotion and preparation method thereof

Technical Field

The invention relates to the technical field of cosmetics, in particular to a surfactant composition for a bicontinuous phase system and a bicontinuous phase cleansing liquid.

Background

The cleansing products on the market comprise cleansing water, cleansing cream, cleansing oil, cleansing cream and the like. The cleansing water is generally a pure water system, the cleansing oil is generally a pure oil system, and the cleansing oil is also a mixed system with oil-water layering. Different systems have different makeup removing effects on different makeup products, but the skin feel experience of the makeup removing system is not good. Through continuous research and study, makeup removal products with double continuous phases, which are not traditional oil-in-water or water-in-oil systems, are already present on the market, and the water phase and the oil phase are respectively continuous in the double continuous phases, so that the double continuous phases are called. However, most of the existing cosmetic removers with double continuous phase systems in the market are polyglycerol emulsifiers, or the existing cosmetic removers with double continuous phase systems are built by adopting emulsifiers commonly used in the cosmetic removers, and the selection level of the surfactant is small, so that the cosmetic removers have certain limitations. And the existing bicontinuous phase system has the problem of poor stability.

Disclosure of Invention

In order to overcome the defects of the prior art, one of the purposes of the invention is to provide a bicontinuous phase cleansing liquid which is constructed by adopting a nonionic surfactant and an anionic surfactant, has a stable system and good cleansing capability and fresh skin feel after washing.

The second purpose of the invention is to provide a preparation method of the bicontinuous phase cleansing liquid, which has simple and convenient flow and easy operation.

One of the purposes of the invention is realized by adopting the following technical scheme:

the bicontinuous cleansing liquid comprises the following components in percentage by weight: 10-30% of a surfactant, wherein the surfactant comprises a nonionic surfactant and an anionic surfactant, the proportion of the nonionic surfactant in the cleansing liquid is 10-30%, and the proportion of the anionic surfactant in the cleansing liquid is 0.1-5%; 5-30% of grease; 5-40% of polyalcohol; water, balance.

The invention innovatively uses the nonionic surfactant to match the anionic surfactant to construct a bicontinuous phase system, and matches a proper amount of grease and polyalcohol, the obtained bicontinuous phase has the characteristics of high transparency, high stability and high makeup removing capability, and the special microemulsion structure of the bicontinuous phase can be verified by a pigment method, and simultaneously, the bicontinuous phase has good makeup removing capability and fresh skin feel after washing.

Further, the nonionic surfactant comprises PEG-15 glycerol isostearate; the anionic surfactant comprises sodium cocoyl malate. The invention adopts a non-ionic surfactant and an anionic surfactant to construct a bicontinuous phase, and is unique in that PEG-15 glycerol isostearate and sodium cocoyl malate are not emulsifying agents in the traditional sense, and PEG-15 glycerol isostearate is a water-soluble lipid excipient, and sodium cocoyl malate is an anionic surfactant and is commonly used for foaming. The novel collocation of the two surfactants ensures that the obtained cleansing liquid has better stability, better skin affinity, comfort and non-greasiness and has good cleansing effect.

Further, the PEG-15 glycerol isostearate accounts for 10-25% of the cleansing liquid; the content of the cocoyl sodium malate in the cleansing liquid is 1-5%. The dosage of the two surfactants is reasonably planned, so that a bicontinuous phase system can be successfully obtained, and the stability is high.

Further, the grease is liquid grease, and the liquid grease is one or any combination of isononyl isononanoate, dioctyl carbonate, cetyl ethyl hexanoate, glycerol tri (ethyl hexanoate), C12-15 alcohol benzoate, ethylhexyl palmitate, caprylic/capric triglyceride, pentaerythritol tetraisostearate, diisostearyl malate, C15-19 alkane, C18-21 alkane, 26# mineral oil, 15# mineral oil, 7# mineral oil, hydrogenated polydecene, polydimethylsiloxane and cyclopentadimethicone; the polyalcohol is one or any combination of glycerol, dipropylene glycol, propylene glycol, 1, 3-butanediol and glycereth-26.

Further, one or any combination of essence, chelating agent, preservative and functional components is also included. The essence, antiseptic and chelating agent can be added into the formulation in an amount of 0.01-1%, such as 0.1%, 0.2% and 0.3%. The preservative may be selected from the group consisting of the preservative of Shumeieuxyl K900, germany, in particular benzyl alcohol ethylhexyl glycerol tocopherol; the amount of the preservative to be added is 0.1 to 1%, for example, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, etc. The chelating agent may be selected from tetrasodium glutamate diacetate, and the chelating agent may be added in an amount of 0.1-1%, for example 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, etc.

The collocation of the polyol, the liquid grease and the surfactant is very critical, the type is unsuitable, and the improper dosage can lead to the failure of the construction of the bicontinuous system, or the unstable phenomenon can occur even if the construction of the bicontinuous system is successful, or the situation of poor makeup removing capability and poor skin feel can be caused. Therefore, the selection and dosage collocation of the polyol, the liquid grease and the surfactant need to be reasonably set.

Further, the composite material comprises the following components in percentage by weight: 10-30% of PEG-15 glycerol isostearate; 0.1-5% of cocoyl apple amino acid sodium; 5-30% of grease; glycerol polyether-261-20%; glycerol 1-20%; 1% -10% of dipropylene glycol; 1% -5% of butanediol; water, balance.

Further, the composite material comprises the following components in percentage by weight: 10-30% of PEG-15 glycerol isostearate; 0.1-5% of cocoyl apple amino acid sodium; 1-5% of cyclopentadimethicone; 1-10% of coco-caprylate/caprate; 0-5% of C15-19 alkane; glycerol polyether-261-20%; glycerol 1-20%; 1-10% of dipropylene glycol; 1-5% of butanediol; water, balance.

Further, the composite material comprises the following components in percentage by weight: 10-25% of PEG-15 glycerol isostearate; 1-5% of cocoyl apple amino acid sodium; 1-5% of cyclopentadimethicone; 1-10% of coco-caprylate/caprate; 0-5% of C15-19 alkane; glycerol polyether-262-15%; 2-15% of glycerol; 1-10% of dipropylene glycol; 1-5% of butanediol; water, balance.

Further, the PEG-15 glycerol isostearate is selected from the commercially available source of OXYPO 2145 produced by Sema chemistry.

Further, the sodium cocoyl malate is selected from the commercial raw material procollapl EF produced by seebeck in france.

Further, the coco alcohol-caprylate/caprate is selected from the commercially available raw material liponate CCC MB produced by VANTAGE corporation.

Further, the cyclopentadimethicone is selected from the commercially available material CM5 produced by ELKEM company.

The second purpose of the invention is realized by adopting the following technical scheme:

a preparation method of a bicontinuous phase cleansing lotion comprises the following steps:

mixing the grease with nonionic surfactant in the formula, if essence is also included in the formula, adding the mixture in the step, stirring and dissolving the mixture, and uniformly mixing the mixture to obtain a first mixture;

adding the polyol with the formula amount into the first mixture, and uniformly stirring to obtain a second mixture;

adding water and anionic surfactant into the second mixture, and stirring to obtain the final product.

Compared with the prior art, the invention has the beneficial effects that:

(1) The double continuous phase cleansing liquid provided by the invention creatively uses the nonionic surfactant to match the anionic surfactant to construct a double continuous phase system, and matches a proper amount of grease and polyalcohol, so that the obtained double continuous phase has the characteristics of high transparency, high stability and high cleansing capability, and the special microemulsion structure of the double continuous phase can be verified by a pigment method. The bicontinuous phase cleansing liquid disclosed by the invention can be effectively compatible to water and oil, does not need emulsification, is not greasy after being cleaned, has less residual feel, and has good cleansing capability and fresh skin feel after being cleaned.

(2) The preparation method of the bicontinuous phase cleansing liquid provided by the invention has the advantages of simple and convenient flow and easiness in operation.

Drawings

FIG. 1 is a physical view of a bicontinuous phase makeup remover according to example 1 of the present invention;

FIG. 2 is a physical diagram of the cleansing liquid with double continuous phases in example 2 of the present invention;

fig. 3 is a physical view of the makeup remover of comparative example 1;

FIG. 4 is a physical view of the cleansing liquid of comparative example 2;

FIG. 5 is a physical view of the cleansing liquid of comparative example 3;

FIG. 6 is a physical view of the cleansing liquid of comparative example 4;

fig. 7 is a physical view of the makeup remover of comparative example 5;

FIG. 8 is a graph showing the effect of the cleansing liquid of embodiment 1 of the present invention after the addition of water-soluble pigments and oil-soluble pigments, respectively, and leaving the cleansing liquid aside;

FIG. 9 is a graph showing the effect of delamination of the cleansing liquid of comparative example 1 after adding an oil-soluble coloring matter.

Detailed Description

The present invention will be further described with reference to the following specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.

The existing cosmetic removing liquid with the double continuous phase system on the market is mostly a polyglycerol emulsifier or a system constructed by adopting an emulsifier commonly used in cosmetic removing oil. The invention innovatively uses the nonionic surfactant to match with the anionic surfactant to construct a bicontinuous phase system, and is compounded with a proper amount of grease and polyol, the water-oil two phases of the obtained cleansing liquid are continuous, the surfactant is distributed on a water-oil interface, the stability is high, and the cleansing liquid has excellent cleansing effect and fresh skin feel after washing.

The invention provides a bicontinuous phase cleansing lotion which comprises the following components in percentage by weight: 10-30% of a surfactant, wherein the surfactant comprises a nonionic surfactant and an anionic surfactant, the proportion of the nonionic surfactant in the cleansing liquid is 10-30%, and the proportion of the anionic surfactant in the cleansing liquid is 0.1-5%; 5-30% of grease; 5-40% of polyalcohol; water, balance.

In an embodiment of the present invention, PEG-15 glycerol isostearate is selected from the commercially available raw material OXYPON 2145 produced by Sema chemistry; sodium cocoyl malate is selected from the commercial raw material procollapl EF produced by seebeck, france; the coco-caprylate/caprate is selected from commercially available raw material liponate CCC MB produced by VANTAGE company; the cyclopentadimethicone is selected from the commercial material CM5 produced by ELKEM company.

Examples 1 to 6

A bicontinuous cleansing liquid comprises PEG-15 glycerol isostearate, sodium cocoyl malate, liquid oil, polyalcohol, water, essence, antiseptic, chelating agent, etc. The details are shown in Table 1 below.

Table 1 formulation tables of examples and comparative examples

The bicontinuous phase cleansing lotion of examples 1-6 was prepared as follows:

weighing cyclopentadimethicone, coco alcohol-caprylate/caprate, essence and PEG-15 glycerol isostearate according to the weight, and stirring and dissolving uniformly to obtain a first mixture;

weighing glycerolyether-26, glycerol, dipropylene glycol and butanediol according to the amount, adding into the first mixture, and uniformly stirring to obtain a second mixture;

weighing water, cocoyl sodium malate, tetra sodium glutamate diacetate and preservative according to the weight, adding the weighed water, cocoyl sodium malate, tetra sodium glutamate diacetate and preservative into the second mixture, and uniformly stirring.

Comparative example 1

Comparative example 1 differs from example 1 in that: the amount of PEG-15 glycerol isostearate was increased and the specific formulation is shown in Table 1.

Comparative example 2

Comparative example 2 differs from example 1 in that: the total amount of PEG-15 glycerol isostearate and grease was increased and the polyol was omitted, the specific formulation is shown in Table 1.

Comparative example 3

Comparative example 3 differs from example 1 in that: the total amount of grease is increased, and the specific formula is shown in table 1.

Comparative example 4

Comparative example 4 differs from example 1 in that: the amount of polyol was reduced and the specific formulation is shown in table 1.

Comparative example 5

Comparative example 5 differs from example 1 in that: the amounts of sodium cocoyl malate and polyol were increased and the specific formulations are shown in table 1.

Comparative example 6

Comparative example 6 differs from example 1 in that: the sodium cocoyl malate was replaced with sodium surfactin, and the specific formulation is shown in table 1.

Comparative example 7

Comparative example 7 differs from example 1 in that: the specific formulation of the substitution of PEG-15 glycerol isostearate with sorbitol polyether tetraoleate is shown in Table 1.

Effect verification

1. Appearance and stability experiments

After the makeup removers of examples 1 to 6 and comparative examples 1 to 7 were completed, the appearance was observed, and the appearance characterization was recorded in table 2. The appearance patterns of the makeup removers of examples 1-2 and comparative examples 1-5 are shown in FIGS. 1-7, respectively, for the photograph recording.

Stability experiments included the following tests:

test 1: standing at normal temperature for 3 months;

test 2: placing at 48 ℃ for 1 month;

test 3: placing at-15 ℃ for 1 month;

test 4: standing at 4deg.C for 1 month;

test 5: the high temperature and the low temperature are circulated at 48 ℃ minus 15 ℃, and the circulation is carried out for 3 times after each temperature is placed for 1 month.

TABLE 2 appearance and stability results records for examples 1-6 and comparative examples 1-7

Fig. 1-2 are external views of the makeup remover of examples 1-2, respectively, and it can be seen from the figures that the makeup remover of examples 1-2 is transparent and does not delaminate, and the effect of the makeup remover of examples 3-6 is similar to that of examples 1-2, and is not repeated. And the combination stability results show that the cleansing liquids of examples 1 to 6 have high stability.

FIGS. 3 to 7 are graphs showing the effects of the cleansing liquid of comparative examples 1 to 5, respectively, and it can be seen from the graphs that the system of comparative example 2, in which PEG-15 glycerol isostearate and oil amount were added, shows a paste shape. Comparative example 1 the amount of PEG-15 glycerol isostearate was increased, the system was layered and the upper layer was emulsified. Comparative example 3 the amount of oil was increased, the system was layered and the upper layer was emulsified. Comparative example 4 reduced the amount of polyol, the system was layered and the upper layer was emulsified. Comparative example 5 increases the amount of sodium cocoyl malate, the system delaminates and the upper layer emulsifies. And none of comparative examples 1 to 5 passed the stability test, the delamination phenomenon was more remarkable than immediately after the preparation.

The comparative examples 6 to 7 replaced the surfactant, and the makeup remover also appeared to be layered, and the layered phenomenon was aggravated in the stability test.

In summary, in the embodiment of the invention, a bicontinuous phase system is constructed by adopting a nonionic surfactant (PEG-15 glycerol isostearate) and an anionic surfactant (sodium cocoyl malate), and proper amount of grease and polyalcohol are compounded, so that the obtained cleansing liquid has continuous water-oil two phases, transparent appearance and high stability. In addition, the amounts of the surfactants PEG-15 glycerol isostearate and sodium cocoyl malate in the bicontinuous system of the present invention were optimal in example 1, and the total amount of oil and fat was also optimal in examples 1 and 2.

2. Bicontinuous phase validation experiments

The bicontinuous phase determination method comprises the following steps: and respectively adding a water-soluble pigment and an oil-soluble pigment into the cleansing liquid, standing for 2 hours at normal temperature, observing color distribution, and judging that the bicontinuous phase is successfully constructed if the color distribution is uniform. Can be uniformly displayed.

Fig. 8 is a graph showing the effect of the makeup remover of example 1 after the addition of pigments, and the left bottle of fig. 8 shows uniform and stable distribution of the red water-soluble pigments, and the right bottle shows uniform and stable distribution of the yellow water-soluble pigments. This illustrates that example 1 is a bicontinuous phase. The effects of examples 2-6 are similar to those of example 1 and will not be described again here.

FIG. 9 is a graph showing the effect of the cleansing liquid of comparative example 1 after adding the oil-soluble pigment, showing the obvious delamination, illustrating that comparative example 1 is not a bicontinuous phase system. The effects of comparative examples 2 to 7 are similar to those of comparative example 1, and are not described here again.

3. Volunteer test

15 volunteers of 20-50 years old were selected, each volunteer was allowed to write 6 oily marker marks on the hands, and then each volunteer was rubbed with 6 marks on the hands using the makeup removers of examples 1-6, respectively, and each makeup remover was rubbed with 1 mark, respectively. Scoring was performed from two indicators of cleanliness and after-flush, the score being 10 full, the higher the score, the higher the evaluation, and the results were averaged over 15 volunteers, as shown in table 3 below.

Table 3 volunteer test results record table

10 min and full	Example 1	Example 2	Example 3	Example 4	Example 5	Example 6
							Cleanliness factor	10	6.8	7.5	6.3	9	8.6
Fresh degree after flushing	9.1	8.2	8.5	7.2	8.8	8.3

From the results, the effect of example 1 was optimal. The grease of example 2 was inferior to that of example 1 in use. The results in table 3 show that the combination of surfactants, polyols and liquid oils in the examples of the present invention affects the effectiveness of the use, make-up removal and skin feel, in addition to the success of the bicontinuous phase construction.

The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.

Claims (4)

1. The bicontinuous cleansing liquid is characterized by comprising the following components in percentage by weight: 10-30% of a surfactant, wherein the surfactant consists of a nonionic surfactant and an anionic surfactant, the proportion of the nonionic surfactant in the cleansing liquid is 10-25%, and the proportion of the anionic surfactant in the cleansing liquid is 1-5%; 5-30% of grease; 5-40% of polyalcohol; water, the balance; the nonionic surfactant is PEG-15 glycerol isostearate; the anionic surfactant is sodium cocoyl malate; the grease is liquid grease and contains 1-5% of cyclopenta-dimethicone; 1-10% of coco-caprylate/caprate; 0-5% of C15-19 alkane; the polyol contains glycerol polyether-262-15%; 2-15% of glycerol; 1-10% of dipropylene glycol; 1-5% of butanediol; the weight percentage is the proportion of the cleansing liquid.

2. The dual continuous phase cleansing lotion according to claim 1, further comprising one or any combination of fragrances, chelating agents, preservatives, and functional ingredients.

3. The bicontinuous phase makeup remover according to any of claims 1-2, comprising the following components in weight percent: 20% of PEG-15 glycerol isostearate; 1.2% of cocoyl apple amino acid sodium; 3.8% of cyclopentadimethicone; coco-caprylate/caprate 6%; glycerol polyether-2615%; 15% of glycerol; dipropylene glycol 5%; 4.5% of butanediol; 0.5% of preservative; 0.1% of chelating agent; 0.2% of essence; water, balance.

4. A method for preparing the bicontinuous phase cleansing liquid according to any one of claims 1 to 3, comprising the steps of:

mixing the grease with nonionic surfactant in the formula, if essence is also included in the formula, adding the mixture in the step, stirring and dissolving the mixture, and uniformly mixing the mixture to obtain a first mixture;

adding the polyol with the formula amount into the first mixture, and uniformly stirring to obtain a second mixture;

adding water and anionic surfactant into the second mixture, and stirring to obtain the final product.