Bicontinuous-phase cleansing cream composition and preparation method thereof

Abstract

The invention discloses a bicontinuous-phase cleansing cream composition and a preparation method thereof. The cleansing cream composition comprises the following components in parts by weight: 20-35 parts of a nonionic surfactant; 3 to 25 parts of polyol; 1-5 parts of an amphiphilic substance; 0.5 to 2.2 parts of an ionic surface active agent; 3 to 11 parts of water; the grease and synthetic wax system is supplemented to 100 parts. The prepared bicontinuous phase makeup removing cream is a stable bicontinuous phase at the high temperature of 95 DEG C, and compared with traditional makeup removing cream, the makeup removing power of water-soluble cosmetics is well improved. The transparent homogeneous phase (the material body is clarified and free of the layering phenomenon) can be kept in the material body filling and paste forming time period, and no floating object exists on the top; and when in use, no obvious gelation phenomenon exists, the washing speed is high, no residual feeling exists after washing, and a very good effect is obtained. In addition, the preparation method is simple, and batch production can be realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of cosmetics, specifically relates to makeup removal products, and more specifically to a dual-continuous phase makeup removal cream composition and a preparation method thereof, and more specifically to a dual-continuous phase makeup removal cream composition that is stable at high temperatures, which solves the problem of uneven material body during high-temperature filling of traditional makeup removal creams. Background Art

[0002] Thanks to the improvement of modern women's awareness of makeup, makeup has become an indispensable part of daily work and social life, and makeup removal is a daily necessity to keep the skin healthy. Therefore, consumers' demand for makeup removal products continues to increase, and the market size is also growing. In recent years, the category of makeup removal creams has been very popular, solving the problem of makeup removal oil dripping easily during use. But there are also some flaws. The makeup removal creams currently on the market that use polyoxyethylene surfactants as the main surfactant will have problems with stratification, precipitation or flocculation during the production process.

[0003] In addition, the makeup removers currently on the market are almost all pure oil formulations or reverse micelle formulations, so they cannot remove water-soluble makeup as easily as dual-continuous makeup removers. This is also the current application limitation of this category of products.

[0004] Therefore, it is expected to develop a dual-continuous phase makeup remover cream that can solve the problem of uneven material at high temperatures when the polyoxyethylene surfactant is used as the main surfactant. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a dual-continuous phase makeup remover cream composition and a preparation method thereof.

[0006] The objective of the present invention is achieved through the following technical solutions:

[0007] In a first aspect, the present invention provides a dual-continuous phase makeup remover cream composition, comprising the following components in parts by weight:

[0008] 20-35 parts of nonionic surfactant;

[0009] 3-25 parts of polyol;

[0010] 1 to 5 parts of amphiphilic substances;

[0011] 0.5 to 2.2 parts of ionic surfactant;

[0012] 3-11 parts water;

[0013] The oil and synthetic wax system is supplemented to 100 parts;

[0014] Wherein, the nonionic surfactant comprises the following components:

[0015] a) at least one of sorbitan polyether-30 tetraoleate and sorbitan polyether-30 tetraisostearate;

[0016] b) at least one of PEG-20 glyceryl triisostearate, PEG-7 glyceryl cocoate, and PEG-8 glyceryl isostearate;

[0017] The ionic surfactants include anionic surfactants and amphoteric surfactants.

[0018] As a preferred solution, the weight proportion of the nonionic surfactant is 25 to 30 parts.

[0019] As a preferred embodiment, in the nonionic surfactant, the mass ratio of component a) to component b) is 1:1 to 6:1.

[0020] As a further preferred embodiment, the nonionic surfactant is sorbitan polyether-30 tetraoleate and PEG-20 glyceryl triisostearate in a mass ratio of 1:1 to 6:1; or

[0021] The nonionic surfactant is sorbitan polyether-30 tetraoleate and PEG-7 glyceryl cocoate or PEG-8 glyceryl isostearate in a mass ratio of 5:1 to 6:1.

[0022] As a preferred embodiment, the polyol is at least one of butanediol, 1,2-pentanediol and 1,2-hexanediol, and more preferably is butanediol.

[0023] As a preferred solution, the weight proportion of the polyol is 5 to 10 parts.

[0024] As a preferred embodiment, the amphiphilic substance is at least one of propylene glycol laurate and isostearic acid.

[0025] As a preferred solution, the weight proportion of the amphiphilic substance is 1 to 5 parts, more preferably 2 to 4 parts.

[0026] As a preferred embodiment, the weight proportion of the ionic surfactant is 1.2 to 1.8 parts.

[0027] As a preferred embodiment, the anionic surfactant is sodium methyl coconut oil acyl taurate.

[0028] As a preferred embodiment, the amphoteric surfactant is at least one of lauryl betaine, lauroyl amidopropyl betaine and cocamidopropyl betaine. More preferably, the amphoteric surfactant is lauroyl amidopropyl betaine.

[0029] As a preferred embodiment, the mass ratio of the anionic surfactant to the amphoteric surfactant is 1:0.98 to 1:1.16.

[0030] As a preferred embodiment, the weight proportion of the water is 3.7 to 10.7 parts, more preferably 6 to 10 parts.

[0031] As a preferred embodiment, the weight proportion of the oil and synthetic wax system is 40 to 65 parts, more preferably 50 to 60 parts.

[0032] As a preferred embodiment, in the oil and synthetic wax system, the oil is selected from ethylhexyl palmitate, tri(ethylhexanoin)glyceryl ester, isononyl isononanoate, isopropyl myristate, caprylic / capric triglyceride, isotridecyl isononanoate, polydimethylsiloxane, phenyl trimethicone, diphenylsiloxyphenyl trimethicone, C12-15 alcohol benzoate, neopentyl glycol di(ethylhexanoate), butylene glycol dicaprylate / dicaprate, propylene glycol dicaprylate / dicaprate, cetyl alcohol ethylhexanoate, C1 At least one of 2-16 alkane, C12-16 isoparaffin, isopropyl palmitate, octyldodecanol, C10-36 fatty acid triglycerides, ethylhexyl stearate, coconut oil-caprylate / caprate, dicaprylyl carbonate, octyldodecanol myristate, diisostearyl malate, isostearyl isostearate, grape seed oil, avocado tree fruit butter, hydrogenated polyisobutene, white meadowfoam seed oil, olive fruit oil, dicaprylyl ether, isopropyl lauroyl sarcosinate, macadamia seed oil, sunflower seed oil, and mineral oil, but not limited thereto.

[0033] As a preferred embodiment, the makeup remover cream composition further comprises other auxiliary agents.

[0034] As a preferred embodiment, the other auxiliary agents include at least one of antioxidants, preservatives, pigments, flavors, chelating agents, and other functional ingredients. The other auxiliary agents can be selected and added in appropriate amounts without affecting the transparency stability and stratification stability of the cleansing cream, causing floating matter, aggravating the gelation phenomenon, and affecting the easy washing property, and are not particularly limited in the present invention.

[0035] As a further preferred embodiment, the antioxidant is selected from at least one of butylated hydroxytoluene, tocopherol (vitamin E), and tocopherol acetate; the preservative is selected from at least one of phenoxyethanol, methylparaben, and ethylparaben.

[0036] In a second aspect, the present invention further provides a method for preparing the aforementioned dual-continuous phase makeup remover cream composition, comprising the following steps:

[0037] Heat the non-volatile oil and synthetic wax, non-ionic surfactant, amphiphilic substance and polyol in the oil and synthetic wax system to 120-130°C to dissolve; then cool to 93-97°C, add ionic surfactant, water, volatile oil in the oil and synthetic wax system, stir evenly to obtain the product.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1) The dual-phase makeup remover cream prepared by the present invention is a stable dual-phase in a high-temperature dissolution state at about 95° C., and compared with traditional makeup remover creams, the makeup removal ability for water-soluble makeup is greatly improved.

[0040] 2) The makeup remover cream composition prepared by the present invention can maintain a transparent and uniform phase (the material body is clear and has no stratification phenomenon) during the period of high-temperature filling and creaming of the material body (within 30 minutes), and there is no floating matter on the top; and there is no obvious gelation phenomenon during use, the rinsing speed is fast, and there is no residual feeling after washing.

[0041] 3) The present invention heats part of the raw materials to 120-130° C. to dissolve them, and then cools the temperature to 93-97° C. to dissolve the other raw materials, thereby further solving the insolubility problem of the makeup remover cream and achieving acceptable transparency and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0043] Figure 1 The photographs of the solubility of different oils and synthetic waxes used in experimental groups 1-5;

[0044] Figure 2 This is a photo of the solubility of experimental groups 6-8 after adding a single nonionic surfactant into the oil and synthetic wax system;

[0045] Figure 3 This is a photo of the solubility of experimental group 9-10 after adding a single nonionic surfactant into the oil and synthetic wax system; Figure 3 A is a frontal photograph of the dissolution degree of experimental group 9; Figure 3 B is the bottom photograph of the dissolution degree of experimental group 9; Figure 3 C is a frontal photograph of the dissolution degree of experimental group 10; Figure 3 D is the frontal photo of experimental group 10 after cooling;

[0046] Figure 4 The photos are of the dissolution degree of high melting point wax in experimental group 11-12 under different heating processes;

[0047] Figure 5The stability photos of the makeup remover cream compositions prepared in Comparative Examples 1-10 (without adding synthetic wax) are shown;

[0048] Figure 6 The stability (with added synthetic wax) photos of the makeup remover cream compositions prepared in Comparative Examples 5 and 7-10;

[0049] Figure 7 The stability (with added synthetic wax) photos of the makeup remover cream compositions prepared in Comparative Examples 11-17;

[0050] Figure 8 The stability (with added synthetic wax) photos of the makeup remover cream compositions prepared in Comparative Examples 18-23;

[0051] Fig. 9 The stability (with added synthetic wax) photos of the makeup remover cream compositions prepared in Comparative Examples 46-53;

[0052] Fig.10 The photos of whether the makeup remover cream compositions prepared in Comparative Examples 46, 48, and 53 have floating objects;

[0053] Fig.11 The stability (with synthetic wax added) photos of the makeup remover cream compositions prepared in Comparative Examples 54-58 and Examples 1-6 (upper photo) and the presence of floating objects (lower photo);

[0054] Fig.12 This is the result of a dual-continuous phase test on the makeup remover cream composition prepared in Example 11. DETAILED DESCRIPTION

[0055] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several variations and improvements may be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0056] The words "preferred", "preferably", "more preferably", etc. in the present invention refer to embodiments of the present invention that can provide certain beneficial effects in certain circumstances. However, other embodiments may also be preferred under the same circumstances or other circumstances. In addition, the description of one or more preferred embodiments does not imply that other embodiments are not applicable, nor is it intended to exclude other embodiments from the scope of the present invention.

[0057] It should be understood that, except in any operating examples, or otherwise indicated, all numbers representing the amount of ingredients used in the specification and claims should be understood to be modified by the term "about" in all cases. Therefore, unless otherwise indicated, the numerical parameters set forth in the following specification and the appended claims are approximate values ​​that vary according to the desired performance to be obtained by the present invention. At least, it is not intended to limit the application of the doctrine of equivalents to the scope of the claims, and each numerical parameter should at least be interpreted according to the number of reported significant figures and by applying ordinary rounding techniques.

[0058] Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the invention are approximations, the numerical values ​​set forth in the specific examples are reported as precisely as possible. Any numerical value, however, inherently contains certain errors necessarily resulting from the standard deviation found in their respective testing measurements.

[0059] In a specific embodiment of the present invention, the performance testing methods used are as follows:

[0060] 1) Transparency stability (without synthetic wax): Heat the non-volatile oil, synthetic wax, nonionic surfactant, amphiphilic substance and polyol by steam at 95°C to dissolve them evenly, then add other raw materials and stir evenly, then keep them at 95°C for 30 minutes to see if they are still clear liquids. The test results are as follows:

[0061] ○: The liquid remains clear within 30 minutes at 95℃ (qualified)

[0062] ×: Liquid becomes turbid within 30 minutes of 95℃ high temperature insulation (failed)

[0063] ××: Liquid flocculates within 30 minutes of 95°C high temperature insulation (unqualified)

[0064] 2) Transparency stability (addition of synthetic wax): Heat the non-volatile oil, synthetic wax, nonionic surfactant, amphiphilic substance and polyol to 120-130℃ by electric heating, stir and dissolve evenly, then cool to 95℃ in a water bath, add other raw materials and stir evenly, then keep it at 95℃ for 30 minutes to observe whether it is still a clear liquid. The test results are as follows:

[0065] ○: Liquid remains clear within 30 minutes at 95℃ (qualified)

[0066] ×: Liquid becomes turbid within 30 minutes of 95℃ high temperature insulation (failed)

[0067] ××: Liquid flocculates within 30 minutes of 95°C high temperature insulation (unqualified)

[0068] 3) Layer stability (without synthetic wax): Use steam heating to dissolve non-volatile oils, synthetic wax, nonionic surfactants, amphiphilic substances, and polyols at 95°C, then add other raw materials and stir evenly, then keep them at 95°C for 30 minutes to observe whether they are still in a uniform phase. The test results are as follows:

[0069] ○: No stratification of liquid within 30 minutes of 95℃ high temperature insulation (qualified)

[0070] ×: The upper layer of liquid delaminated within 30 minutes of 95℃ high temperature insulation (failed)

[0071] ××: The lower layer of liquid delaminated within 30 minutes of 95℃ high temperature insulation (failed)

[0072] 4) Layer stability (addition of synthetic wax): non-volatile oils, synthetic wax, nonionic surfactants, amphiphilic substances, and polyols are heated to 120-130°C by electric heating and stirred to dissolve evenly, then cooled to 95°C in a water bath, other raw materials are added and stirred evenly, and then kept at 95°C for 30 minutes to observe whether it is still a uniform phase. The test results are determined as follows:

[0073] ○: No stratification of liquid within 30 minutes of 95℃ high temperature insulation (qualified)

[0074] ×: The upper layer of liquid delaminated within 30 minutes of 95℃ high temperature insulation (failed)

[0075] ××: The lower layer of liquid delaminated within 30 minutes of 95℃ high temperature insulation (failed)

[0076] 5) Whether there are floating objects: Heat the non-volatile oil, synthetic wax, non-ionic surfactant, amphiphilic substance and polyol to 120-130℃ by electric heating, stir and dissolve evenly, then cool to 95℃ in a water bath, add other raw materials and stir evenly, then keep it at 95℃ for 30 minutes, and observe whether there are floating objects on the top of the material. The test results are as follows:

[0077] ○: No floating objects on the top of the material within 30 minutes of 95℃ high temperature insulation (qualified)

[0078] ×: The top of the material contains floating objects within 30 minutes of 95℃ high temperature insulation (unqualified)

[0079] 6) Gel feel test: 10 volunteers were tested, and the makeup was what the volunteers usually used. Requirements: Aged between 16 and 65; no serious systemic diseases, no immune deficiency or autoimmune diseases; no active allergic diseases; no history of severe allergies to skin care cosmetics; no use of hormone drugs and immunosuppressants in the past month; no participation in other clinical trials; use of the test substances in accordance with regulations and complete information; all volunteers should fill out the informed consent form before the test. Apply 3g of makeup remover cream to the entire face, massage until oil is dissolved, then wash with warm water and evaluate by sensory organs. The evaluation results are determined as follows:

[0080] ◎: 9 out of 10 people or more thought that there was no obvious gelation during rinsing (excellent)

[0081] ○: 6 to 8 out of 10 people think that there is no obvious gelation phenomenon during washing (acceptable)

[0082] ×: 8 out of 10 people or more believe that there is obvious gelation during washing (unqualified)

[0083] 7) Rinseability test: 10 volunteers were tested, and the makeup was what the volunteers usually used. Requirements: Aged between 16 and 65; no serious systemic diseases, immune deficiencies or autoimmune diseases; no active allergic diseases; no history of severe allergies to skin care cosmetics; no use of hormone drugs and immunosuppressants in the past month; no participation in other clinical trials; use of the test substances in accordance with regulations and complete information; all volunteers should fill out an informed consent form before the test. Apply 3g of makeup remover cream to the entire face, massage until the oil is dissolved, then wash off with warm water and evaluate by sensory organs. The evaluation results are determined as follows:

[0084] ◎: 9 out of 10 people or more think that it rinses off quickly and leaves no residue after rinsing (excellent)

[0085] ○: 6 to 8 out of 10 people think that it rinses quickly and there is a slight oily film after rinsing (acceptable)

[0086] ×: 8 out of 10 people or more think that the flushing is slow and the oil film is strong after flushing (unqualified)

[0087] 8) Makeup removal performance test: 10 volunteers were tested for makeup, and the water-soluble makeup was: ukiss Milky Orange Trek Water Lip Gloss. The oil-soluble makeup was: MAC Satin Soft Matte Lipstick.

[0088] Requirements: Aged between 16 and 65 years old; no serious systemic diseases, no immunodeficiency or autoimmune diseases; no active allergic diseases; no history of severe allergies to skin care cosmetics; no use of hormone drugs and immunosuppressants in the past month; no participation in other clinical trials; use of the test substance in accordance with regulations and complete information; all volunteers should fill out an informed consent form before testing. Select an area of ​​skin on the inside of the subject's arm. The area should be free of damage, hair, and relatively uniform skin condition. Use each makeup product to draw a square of about 3cm in length and 1cm in width in the selected area. After applying each makeup, wait for it to completely form a film and set according to the characteristics of the product. Then apply makeup remover to the area where makeup has been applied, massage in circles until the oil is dissolved, then wash with warm water, and self-evaluate the makeup removal ability. The evaluation results are determined as follows:

[0089] ◎: 9 out of 10 people or more think that it has strong makeup removal ability (excellent)

[0090] ○: 6 to 8 out of 10 people think that it has a strong ability to remove makeup (acceptable)

[0091] ×: 5 or less out of 10 people think that the makeup removal ability is strong (unqualified)

[0092] 9) Dual-continuous phase test of makeup remover cream: Add water-soluble color powder and oil-soluble color powder to the prepared makeup remover cream at 95°C and observe whether there is any pigment diffusion within 1 minute. The test results are as follows:

[0093] ○: There is diffusion phenomenon

[0094] ×: No diffusion

[0095] 10) Moisturizing performance test: First, clean the test area with clean water and wait for 30 minutes to allow the skin to reach a stable state; first test the blank value of different 3cm×3cm areas on the inner side of the forearm, then apply 0.2mg of makeup remover cream to the designated test area and massage in a circular motion until the oil is dissolved, add 0.2mL of clean water to emulsify and massage for 30 seconds, then rinse with clean water and gently wipe dry with a cotton pad, and test the skin moisture content 5 minutes after makeup removal.

[0096] Method for measuring skin moisture content: Use Corneometer CM825 (Courage-Khazaka) to test the moisture content of the stratum corneum of the skin for 5 minutes. The test method is QB / T 4256-2011. Calculate the percentage increase of the moisture content of the stratum corneum of the skin. The higher the value, the higher the moisture retention capacity.

[0097] The test results are determined as follows:

[0098] ○: Moisturizing effect is greatly improved (compared to the blank value, the change rate of skin moisture content after makeup removal is more than 30%)

[0099] ×: Moisturizing effect has been improved (compared to the blank value, the change rate of skin moisture content after makeup removal is less than 30%)

[0100] In the specific implementation of the present invention, all raw materials used are commercially available conventional raw materials, and the present invention does not make any special restrictions. The specific sources of the raw materials used in the following examples are as follows:

[0101] Ethylhexyl palmitate from Edenor 0leochemicals' Emerex EH 2660; Caprylic / capric triglyceride from I0I Acidchem's PALMSURF MCT 6040; Mineral oil #15 from Hansen & Rosenthal's PIONIER 2076P; Isohexadecane from Lanxess's Purolon iHD; Synthetic wax from Nucera's PERFORMA SW-88 / SW-76; Sorbitan polysorbate-30 tetraoleate from Toho SORBON TR-843V (ZB); PEG-7 glyceryl cocoate from Basf's Cetiol HE; PEG-8 glyceryl isostearate from Toho PEGNOL IS-108G; PEG-20 glyceryl triisostearate from Toho PEGNOL IS-108GC; Butylene Glycol from OXEA's Butylene Glycol; Propylene Glycol from DOW's Propylene Glycol; 1,3-propylene glycol from Dupont's Zemea; dipropylene glycol from DOW's DipropyleneGlycol LO+; tripropylene glycol from ADEKA's TPG-H; 1,2-pentanediol from LABIO's LB-PTG; 1,2-hexanediol from LABIO's LB-12HD; isostearic acid from Croda's Prisorine 3505; propylene glycol laurate from Riken's BIOTHICKNER TYPE BP(C); PPG-10-butaneth-9 from NOF's UNILUB 50MB-11; glyceryl polyether-26 from NOF's GLYMOIST ME-26; polypropylene glycol-17 from Dupont VELVETOL H1000; PEG-12 diisostearate from NOF's NONION DIS-600; polyglyceryl-10 diisostearate from SAKAMOTO's S Face IS-1002P; Polyglyceryl-10 pentaisostearate from SAKAMOTO's S Face IS-1005P; Polyglyceryl-10 decisostearate from SAKAMOTO's S Face IS-1009P; Polyglyceryl-6 dicaprate from TAIYOUKAGAKU's SUNSOFT Q-102H-C; Polyglyceryl-5 trioleate from TAIYOUKAGAKU's SUNSOFT A-173E-C; Polyglyceryl-10 laurate from RIKEN's POEM J-0021; PEG-80 sorbitan laurate from NOF's NONION LT-280; Sodium cocoyl methyl taurate from TOHO's NEOSCOAP CDT-30-SF (active content 26%);Sodium methyl cocoyl taurate comes from NEOSCOAP CN-30-SF of TOHO or DIAPON K-SF of NOF (30% active content, 70% water content); Sodium laureth-6 carboxylate comes from fAKYPO RLM-45NV of KAO (23.5% active content); Disodium cocoamphodiacetate comes from REWOTERIC AM 2C NM of EVONIK (40% active content); Sodium lauroyl sarcosinate comes from AMINOLLS-30 of Element Set (30% active content); Disodium cocoyl glutamate comes from AMISOFT ECS-22W of AJINOMOTO (29% active content); Potassium cocoyl glycinate / potassium cocoate comes from Amilite GCK-12H (21% active potassium cocoyl glycinate, 9% active potassium cocoate); Sodium oleth-7 phosphate from TOHO's PHOSPHANOL RL-210; Lauryl betaine from NOF's NISSAN ANON BL-SF (35% active content, 64.9% water content); Lauramidopropyl betaine from SOLVAY's MIRATAINE DAB ULS MB (35% active content, 65% water content); Cocamidopropyl betaine from NOF's ANON BDF-SF (30% active content, 69% water content); CI 17200 from Sensient's Unicert Red K7057-J; CI 42090 from Sensient's Unicert Blue05601-J; CI26100 from Spectra's D&C RED 17. ;

[0102] In order to explore the reasons for the precipitation problem of traditional makeup remover creams, the present invention conducted the following experiments in the preliminary research:

[0103] 1. Investigate the solubility of different oils and synthetic waxes

[0104] The raw materials of each experimental group in Table 1 were mixed according to the weight parts shown, heated to 95°C by steam, stirred evenly, and kept warm for 30 minutes. The degree of dissolution was observed. The results were as follows: Figure 1 shown.

[0105] Table 1

[0106]

[0107]

[0108] Depend on Figure 1The results show that when experimental groups 1-2 use synthetic wax SW-88 to dissolve with oils of different polarity, they all have insolubility, and it can be concluded that the higher the polarity of the oil (the higher the IOB value), the lower the solubility; when experimental groups 3-4 use synthetic wax SW-88 to dissolve with different non-polar oils, the solubility varies, SW-88 has a small amount of insoluble matter in mineral oil (experimental group 3), and a trace amount of insoluble matter in isohexadecane (experimental group 4); when experimental groups 1 and 5 use different synthetic waxes to dissolve with isohexadecane, even if experimental group 5 uses synthetic wax SW-76 with a lower melting point, it still has insolubility.

[0109] 2. Investigate the solubility of a single nonionic surfactant in a system of oils and synthetic waxes

[0110] The raw materials of experimental groups 6-8 in Table 2 were mixed according to the mass percentages shown, heated to 95°C with steam, stirred evenly, and kept warm for 30 minutes. The degree of dissolution was observed. The results were as follows: Figure 2 shown.

[0111] Mix the raw materials of experimental groups 9-10 in Table 2 according to the weight parts shown, stir and heat to 120-130℃ to dissolve, then cool to 95℃ in a water bath and keep warm for 30 minutes. Observe the degree of dissolution. The results are as follows: Figure 3 shown.

[0112] Table 2

[0113] INCI name of raw material Experimental Group 6 Experimental Group 7 Experimental Group 8 Experimental Group 9 Experimental Group 10 Ethylhexyl palmitate (OV=470IV=60IOB=0.13) 64.0000 <![CDATA[ ]]> <![CDATA[ ]]> Caprylic / capric triglyceride (OV=580IV=180IOB=0.31) <![CDATA[ ]]> 64.0000 <![CDATA[ ]]> 64.0000 Isohexadecane <![CDATA[ ]]> <![CDATA[ ]]> 64.0000 Mineral Oil #15 64.0000 Synthetic wax SW-88 6.0000 6.0000 6.0000 6.0000 6.0000 Sorbitol 30 Tetraoleate 30.0000 30.0000 30.0000 PEG-7 Glyceryl Cocoate 30.0000 30.0000

[0114] Depend on Figure 2 The results show that after adding a single nonionic surfactant, sorbitan polyether-30 tetraoleate, to the oil and synthetic wax system of experimental groups 6-8, there is still insolubility. Experimental group 6 has some suspended insoluble matter, experimental group 7 has obvious turbidity and insoluble particles, and experimental group 8 has trace insoluble matter. It can be seen that the solubility of synthetic wax is lower after adding surfactants. The reason is that surfactants have the ability to grasp oils and fats, which leads to an increase in the melting point of dissolved synthetic wax. Since mineral oil, isoparaffins and synthetic waxes are all non-polar organic substances, this verifies the principle that similar organic substances dissolve in each other. This also verifies the problem that currently available makeup remover creams will have point precipitation during production (here, synthetic wax is not completely dissolved).

[0115] Depend on Figure 3 The results show that the electric heating process used in experimental groups 9 and 10 ensured that the synthetic wax was completely dissolved ( Figure 3 A and Figure 3C). However, it can be observed from experimental groups 9-10 that, regardless of whether in polar or non-polar oil systems, polyoxyethylene surfactants with high HLB values ​​(PEG-7 glyceryl cocoate, HLB value of 12) will sink to the bottom due to compatibility issues; in the polar oil system of experimental group 9, the hydrophilicity of polyoxyethylene surfactants gradually decreases at high temperatures, and after cooling, some self-organized structures appear, and the system becomes turbid ( Figure 3 B), as time goes by, spot precipitation also appears. However, after cooling, the experimental group 10 shows stratification phenomenon ( Figure 3 D).

[0116] From the above experimental results, we can know that: non-polar oils and synthetic waxes have good miscibility, which can solve the solubility problem of synthetic waxes; polar oils and polyoxyethylene surfactants have good miscibility, which can reduce stratification; in addition, in the case of polar oils, it is difficult to effectively solve the problem of surfactant precipitation or stratification by relying on non-polar oils. Regarding the HLB value of surfactants, although the use of surfactants with an HLB value of about 10 can reduce the stratification phenomenon, the rinsing property is not good. Although the use of surfactants with a high HLB value can increase the rinsing property, there is a stratification problem. Therefore, it can be concluded that: 1) the system of non-polar oils and waxes will have good compatibility; 2) the system of non-polar oils and non-ionic surfactants will not easily precipitate; 3) the system of polar oils and non-ionic surfactants has good stability (reducing stratification); 4) the HLB value of non-ionic surfactants is related to the balance of skin feel. But you can't have all four.

[0117] 3. Study on the point precipitation of high melting point wax under different heating processes

[0118] The raw materials of experimental groups 11 and 12 in Table 3 were treated by steam heating or electric heating according to the weight proportions shown, and then kept at 95°C for 30 minutes to observe the dissolution. Figure 4 shown.

[0119] The steam heating process used in Table 3 is: ethylhexyl palmitate, synthetic wax, and sorbitan polyether-30 tetraoleate are heated to 95° C. by steam heating and stirred to dissolve, and then isohexadecane is added and stirred evenly.

[0120] The electric heating process used is: ethylhexyl palmitate, synthetic wax, and sorbitan polyether-30 tetraoleate are heated and stirred to 120-130° C. by electric heating to dissolve, then cooled to 95° C. in a water bath, isohexadecane is added, and stirred evenly.

[0121] Table 3

[0122] INCI name of raw material Experimental Group 11 Experimental Group 12 Ethylhexyl palmitate 56.0000 56.0000 Isohexadecane 8.0000 8.0000 Synthetic wax 6.0000 6.0000 Sorbitol 30 Tetraoleate 30.0000 30.0000 Heating process Steam heating process Electric heating process

[0123] Depend on Figure 4The results show that insolubility occurred in Experimental Group 11 using steam heating process, while no insolubility was found in Experimental Group 12 using electric heating process. In further follow-up experiments, it was found that the synthetic wax insolubility was not found in Experimental Group 12 even after being kept at 95°C for 6 hours, or after being cooled to room temperature and completely crystallized and then heated to 95°C again, which is sufficient for mass production.

[0124] Based on the previous exploratory experiments, specific experiments on the formulations of the dual-continuous phase makeup remover cream compositions of the following examples and comparative examples were conducted.

[0125] Comparative Example 1-10 Surfactant Screening Experiment (I)

[0126] Comparative Examples 1-10 provide a makeup remover cream composition, the raw materials and weight parts of the makeup remover cream composition are shown in Table 4. The preparation method of the makeup remover cream composition is as follows:

[0127] 1) According to the weight proportions of the raw materials of Comparative Examples 1-10 shown in Table 4, ethylhexyl palmitate, synthetic wax, sorbitan polyether-30 tetraoleate, PEG-7 glyceryl cocoate, and butylene glycol were uniformly dissolved by steam heating at 95° C., and then isohexadecane, water, and CI 17200 were added and stirred evenly. The resulting makeup remover cream composition was kept at 95° C. for 30 minutes, and the transparency stability (without adding synthetic wax) and the delamination stability (without adding synthetic wax) were evaluated.

[0128] 2) According to the weight proportions of the raw materials in Comparative Examples 5, 7-10 shown in Table 4, ethylhexyl palmitate, synthetic wax, sorbitol polyether-30 tetraoleate, PEG-7 glyceryl cocoate, and butylene glycol were stirred and heated to 120-130°C by electric heating to dissolve, then cooled to 95°C in a water bath, and isohexadecane, water, and CI 17200 were added and stirred evenly. The resulting makeup remover cream composition was kept at 95°C for 30 minutes to evaluate transparency stability (with synthetic wax), stratification stability (with synthetic wax), gel feel, easy washing, and makeup removal ability. The performance test results of the makeup remover cream compositions prepared in each comparative example are shown in Table 4, and the stability (without synthetic wax) is shown in the photo. Figure 5 , stability (addition of synthetic wax) photo as shown Figure 6 shown.

[0129] Table 4

[0130]

[0131] From Table 4 and Figure 5-Figure 6The results show that in terms of stability, the difference between Comparative Examples 1-2, Comparative Examples 3-5, and Comparative Examples 7 is that the total weight of sorbitan polyether-30 tetraoleate and PEG-7 glyceryl cocoate is 30 parts, but the proportions are different. When the addition amount of sorbitan polyether-30 tetraoleate is 30 parts, Comparative Example 7 is qualified in the tests of transparency stability (without synthetic wax), delamination stability (without synthetic wax), transparency stability (with synthetic wax), and delamination stability (with synthetic wax). When sorbitan polyether-30 tetraoleate and PEG-7 glyceryl cocoate are mixed in other proportions, the following phenomena occur: Comparative Examples 1-2 fail the stratification stability (without synthetic wax) test, but pass the transparency stability (without synthetic wax) test; Comparative Example 3 fails both the transparency stability (without synthetic wax) and stratification stability (without synthetic wax) tests; Comparative Example 4 is divided into three layers in the transparency stability (without synthetic wax) and stratification stability (without synthetic wax) tests, and non-ionic surfactant precipitates in the middle layer; Comparative Example 5 becomes turbid in both the transparency stability (without synthetic wax) and transparency stability (with synthetic wax) tests. The difference between Comparative Examples 6 and 7 is that the addition amount of sorbitol polyether-30 tetraoleate is 20 parts and 30 parts. When sorbitol polyether-30 tetraoleate is less than 30 parts, in the tests of transparency stability (without synthetic wax) and stratification stability (without synthetic wax), Comparative Example 6 has turbidity and stratification, and upper stratification and lower stratification occur at the same time. It can be concluded from Comparative Example 8 that when the addition amount of sorbitol polyether-30 tetraoleate is 30 parts and PEG-7 glyceryl cocoate is 5 parts, the transparency stability (without synthetic wax) and stratification stability (without synthetic wax) are better. , transparency stability (with synthetic wax) and stratification stability (with synthetic wax) tests, high temperature is transparent throughout, without stratification; from Comparative Example 9, it can be concluded that when PEG-7 glyceryl cocoate is 10 parts, turbidity and upper stratification appear in the transparency stability (without synthetic wax) and stratification stability (without synthetic wax) tests; in the transparency stability (with synthetic wax) and stratification stability (with synthetic wax) tests, 3.5 parts of water need to be added to keep the whole process transparent without stratification, indicating that the interval of the two continuous phases is different when the formula is waxed and not waxed. In Comparative Example 10, it can be concluded that when the addition amount of sorbitol polyether-30 tetraoleate is 30 parts and PEG-7 glyceryl cocoate is higher than 10 parts, turbidity and lower stratification appear in the transparency stability (without synthetic wax) and stratification stability (without synthetic wax) tests; in the transparency stability (with synthetic wax) and stratification stability (with synthetic wax) tests, 3.6 parts of water need to be added to keep the whole process transparent, but top stratification still occurs.

[0132] Comparative Examples 1-7 show that when the surfactant is fixed at 30 parts, PEG-7 glyceryl cocoate will cause stratification when it exceeds 5 parts. When sorbitan polyether-30 tetraoleate is used alone at less than 30 parts, stratification will occur.

[0133] In the gel feeling test, easy rinsing test and makeup removal performance test: Comparative Examples 5, 7-9 all showed gelation and difficulty in rinsing, and failed the makeup removal performance test. In addition, since Comparative Example 7 used sorbitan polyether-30 tetraoleate alone, it felt very sticky when rinsed off, and the easy rinsing test was worse than that of Comparative Examples 5, 8, and 9 using sorbitan polyether-30 tetraoleate and PEG-7 glyceryl cocoate.

[0134] Comparative Example 11-17 Surfactant Screening Experiment (II)

[0135] Comparative Examples 11-17 provide a makeup remover cream composition, the raw materials and weight parts of the makeup remover cream composition are shown in Table 5. The preparation method of the makeup remover cream composition is as follows:

[0136] According to the weight proportions of the raw materials in comparative examples 11-17 shown in Table 5, ethylhexyl palmitate, synthetic wax, sorbitol polyether-30 tetraoleate, PEG-7 glyceryl cocoate, and butylene glycol were stirred and heated to 120-130°C by electric heating to dissolve, then cooled to 95°C in a water bath, and isohexadecane, water, and CI17200 were added and stirred evenly. The resulting makeup remover cream composition was kept at 95°C for 30 minutes to evaluate transparency stability (with synthetic wax), stratification stability (with synthetic wax), gel feel, easy rinsing, and makeup removal ability. The performance test results of the makeup remover cream compositions prepared in each comparative example are shown in Table 5, and the stability (with synthetic wax) is shown in the photo. Figure 7 shown.

[0137] Table 5

[0138]

[0139] From Table 5 and Figure 7The results show that in terms of stability: from the difference between comparative examples 11-12, it can be seen that the total weight of sorbitol polyether-30 tetraoleate and PEG-8 glyceryl isostearate is 30 parts. When the amount of PEG-8 glyceryl isostearate added is greater than 5 parts, the problem of upper layer stratification occurs in the stratification stability (addition of synthetic wax) test; in comparative example 13, the total weight of sorbitol polyether-30 tetraoleate and PEG-8 glyceryl isostearate is 35 parts, and PEG-8 glyceryl isostearate is 5 parts, which passes the tests of transparent stability (addition of synthetic wax) and stratification stability (addition of synthetic wax). From the difference between comparative examples 14-16, it can be seen that the total weight of sorbitol polyether-30 tetraoleate and PEG-20 glyceryl triisostearate is 30 parts. When the amount of PEG-20 glyceryl triisostearate added is greater than 15 parts, the problem of upper layer stratification occurs in the stratification stability (addition of synthetic wax) test. In Comparative Example 17, the total weight parts of sorbitan polyether-30 tetraoleate and PEG-20 glyceryl triisostearate is 35 parts, and the weight of PEG-20 glyceryl triisostearate is 5 parts. The test of transparency stability (addition of synthetic wax) and stratification stability (addition of synthetic wax) was passed.

[0140] In the gel feel test, rinsability test and makeup removal performance test: Comparative Examples 11, 13-14, 15, and 17 all showed gelation and difficulty in rinsing, and the makeup removal performance was unqualified.

[0141] Therefore, based on the results of Comparative Examples 1-17, the surfactant compounding experiment with 30 to 35 parts obtained the surfactant compounding range (mass ratio) that passed the transparent stability (addition of synthetic wax) and stratification stability (addition of synthetic wax) tests:

[0142] Sorbitol polyether-30 tetraoleate: PEG-7 glyceryl cocoate at 30:5 to 25:5;

[0143] Sorbitol polyether-30 tetraoleate: PEG-8 glyceryl isostearate at 30:5 to 25:5;

[0144] Sorbitol polyether-30 tetraoleate:PEG-20 glyceryl triisostearate is 30:5~15:15.

[0145] After the screening experiment of surfactants, sorbitan polyether-30 tetraoleate and PEG-20 glyceryl triisostearate, which have the largest compounding range, were selected as the main surfactants.

[0146] Comparative Examples 18-23 Polyol Screening Experiment

[0147] Comparative Examples 18-23 provide a makeup remover cream composition, the raw materials and weight percentages of the makeup remover cream composition are shown in Table 6. The preparation method of the makeup remover cream composition is basically the same as that of Comparative Example 7, except that other polyols are used instead of butanediol, and the weight percentages of other raw materials used are different. The performance test results of the makeup remover cream compositions prepared in each comparative example are shown in Table 6, and the stability photos are shown in Table 6. Figure 8 shown.

[0148] Table 6

[0149]

[0150] From Table 6 and Figure 8 It can be seen from the results that it can be concluded from Comparative Examples 18-19 that in the formula where the polyol is propylene glycol or 1,3-propylene glycol, turbidity and lower layer stratification occurred in the transparency stability (addition of synthetic wax) and stratification stability (addition of synthetic wax) tests. The reason is that propylene glycol or 1,3-propylene glycol fails to effectively increase the cloud point of sorbitan polyether-30 tetraoleate; lower layer stratification occurred in the stratification stability (addition of synthetic wax) test in Comparative Example 20; in Comparative Example 21, we observed that when heated to 65°C, turbidity occurred at high temperature, but as the temperature rose again, the turbidity disappeared and the material became clear again, but lower layer stratification occurred in the stratification stability (addition of synthetic wax) test; in Comparative Examples 22-23, when the polyols were 1,2-pentanediol and 1,2-hexanediol, the tests of transparency stability (addition of synthetic wax) and stratification stability (addition of synthetic wax) were passed.

[0151] From the results of Comparative Examples 7 and 18-23, it can be seen that only butanediol, 1,2-pentanediol and 1,2-hexanediol passed the stability test. Since 1,2-pentanediol and 1,2-hexanediol are external preservatives, high addition amounts may cause irritation to the skin, so butanediol is the preferred polyol.

[0152] Comparative Examples 24-27 Polyol Content Screening Experiment

[0153] Comparative Examples 24-27 provide a makeup remover cream composition, the raw materials and weight percentages of the makeup remover cream composition are shown in Table 7. The preparation method of the makeup remover cream composition is basically the same as that of Comparative Example 7, except that the weight percentages of the raw materials used are different. The performance test results of the makeup remover cream compositions prepared in each comparative example are shown in Table 7.

[0154] Table 7

[0155]

[0156] From the results in Table 7, it can be seen that in terms of stability: from Comparative Examples 7 and Comparative Examples 24-26, it can be concluded that butanediol has passed the tests of transparency stability (addition of synthetic wax) and stratification stability (addition of synthetic wax) at addition amounts of 5 to 25 parts; while in Comparative Example 27, when the addition amount of butanediol is greater than 25 parts, transparency cannot be achieved no matter how the production process is adjusted. The reason may be that the amount of water phase added exceeds the range of the co-continuous phase.

[0157] In terms of gel feel test: it can be concluded from Comparative Examples 7 and 24-26 that when the amount of butanediol added is greater than 10 parts, there is obvious gelation during flushing; gelation also occurs when the amount of butanediol added is 5 parts, but it is better than when it is 10 parts.

[0158] In terms of the easy-to-rinse test and the makeup removal performance test: Comparative Example 7 and Comparative Examples 24-26 all failed to meet the standards.

[0159] After polyol screening experiments, we prefer 5 to 10 parts of butanediol to reduce gelation during washing.

[0160] Comparative Examples 28-42 Screening Experiment of Amphiphilic Substances

[0161] Comparative Examples 28-42 provide a makeup remover cream composition, the raw materials and weight parts of the makeup remover cream composition are shown in Table 8 and Table 9. The preparation method of the makeup remover cream composition is as follows:

[0162] According to the weight parts of each raw material of comparative examples 28-42 shown in Tables 8 and 9, ethylhexyl palmitate, synthetic wax, each amphiphilic substance, sorbitol polyether-30 tetraoleate, PEG-7 glyceryl cocoate, and butylene glycol were stirred and heated to 120-130°C by electric heating to dissolve, then cooled to 95°C in a water bath, and isohexadecane, water, CI17200, and sodium cocoyl methyl taurine taurate were added, and stirred evenly. The resulting makeup remover cream composition was kept at 95°C for 30 minutes to evaluate the transparency stability (addition of synthetic wax), stratification stability (addition of synthetic wax), gel feel, easy washing and makeup removal ability. The performance test results of the makeup remover cream composition prepared in each comparative example are shown in Tables 8 and 9.

[0163] Table 8

[0164]

[0165] Table 9

[0166]

[0167]

[0168] It can be seen from the results of Tables 8 and 9 that, compared with Comparative Examples 28 and 29, the addition of sodium cocoyl methyl taurine taurate can increase the turbidity point of the makeup remover cream emulsification system and improve the transparency stability (addition of synthetic wax); Comparative Examples 30-42 use different types of amphiphilic substances, and Comparative Examples 32-35 and 41-42 are unqualified in transparency stability (addition of synthetic wax) and stratification stability (addition of synthetic wax). Although Comparative Examples 29 and 36-40 pass the transparency stability (addition of synthetic wax) and stratification stability (addition of synthetic wax), they fail the gel sense test and the easy washing test and the makeup removal performance test. Comparative Example 30 passes the transparency stability (addition of synthetic wax) and stratification stability (addition of synthetic wax), and the gel sense test is qualified, but it fails the easy washing test. It is found that only Comparative Example 31, which uses propylene glycol laurate as an amphiphilic substance, passes the transparency stability (addition of synthetic wax) and stratification stability (addition of synthetic wax), and the gel sense test result is excellent, but it fails the easy washing test and the makeup removal performance test. Therefore, in terms of comprehensive evaluation, propylene glycol laurate is the most excellent, followed by isostearic acid.

[0169] Comparative Examples 43-45 Screening Experiment of Amphiphilic Substance Addition Amount

[0170] Comparative Examples 43-45 provide a makeup remover cream composition, the raw materials and weight parts of the makeup remover cream composition are shown in Table 10. The preparation method of the makeup remover cream composition is the same as that of Comparative Example 31. The obtained makeup remover cream composition is kept at 95°C for 30 minutes, and the transparency stability (addition of synthetic wax), stratification stability (addition of synthetic wax), gel feel, easy washing and makeup removal ability are evaluated. The performance test results of the makeup remover cream compositions prepared in each comparative example are shown in Table 10.

[0171] Table 10

[0172]

[0173]

[0174] From the results in Table 10, it can be seen that the difference between Comparative Example 31 and Comparative Examples 43-45 is that the addition amount of propylene glycol laurate is different. Comparative Examples 44 and 45 are excellent in the gel sense test compared with Comparative Example 31, and Comparative Example 44 is more excellent than Comparative Example 31, while Comparative Example 45 is not better than Comparative Example 44; and the gel sense test of Comparative Example 43 is qualified. The above results show that the optimal addition amount of propylene glycol laurate is 3-7 parts, and more preferably 3-5 parts.

[0175] Comparative Examples 46-53 Anionic surfactant screening experiment

[0176] Comparative Examples 46-53 provide a makeup remover cream composition, the raw materials and weight parts of the makeup remover cream composition are shown in Table 11. The preparation method of the makeup remover cream composition is as follows:

[0177] According to the weight proportions of the raw materials in comparative examples 46-53 shown in Table 11, ethylhexyl palmitate, synthetic wax, isostearic acid, propylene glycol laurate, sorbitol polyether-30 tetraoleate, PEG-7 glyceryl cocoate, and butylene glycol were stirred and heated to 120-130°C by electric heating to dissolve, then cooled to 95°C in a water bath, and isohexadecane, water, CI17200, and various anionic surfactants were added and stirred evenly. The resulting makeup remover cream composition was kept at 95°C for 30 minutes to evaluate transparency stability (with synthetic wax), stratification stability (with synthetic wax), presence of floating objects, easy rinsing, and makeup removal ability. The performance test results of the makeup remover cream compositions prepared in each comparative example are shown in Table 11, and the stability photos are shown in Table 11. Fig. 9 Is there any floating object photo as shown? Fig.10 shown.

[0178] Table 11

[0179]

[0180]

[0181] From Table 11 and Figure 9-10 It can be seen from the results that the difference between Comparative Examples 46-53 is that the types of anionic surfactants are different, but the overall active matter content is similar. Comparative Examples 46, 48, and 53 were clarified at high temperature in the transparency stability (synthetic wax addition) and stratification stability (synthetic wax addition), and there was no stratification phenomenon, but the performance in the easy washing test and the makeup removal performance test was unqualified; Comparative Example 47 was clarified at high temperature in the transparency stability (synthetic wax addition), and there was a top layer stratification phenomenon in the stratification stability (synthetic wax addition), the rinsing property was good, and the makeup removal test performance was qualified; Comparative Example 49 used Evonik REWOTERIC AM 2C NM, but it could not be adjusted thoroughly when making the formula. It is speculated that the salt content in this raw material is 9%, and the salt will lower the turbidity point; Comparative Example 50 was clarified at high temperature in the transparency stability (synthetic wax addition) test, and there was an upper layer stratification phenomenon in the stratification stability (synthetic wax addition); Comparative Example 51 had flocculation in the transparency stability (synthetic wax addition), and there was an upper layer stratification phenomenon in the stratification stability (synthetic wax addition) test; Comparative Example 52 was clarified at high temperature in the transparency stability (synthetic wax addition) test, and there was an upper layer stratification phenomenon in the stratification stability (synthetic wax addition) test, and flocculent precipitation appeared in the upper layer, which is speculated to be Amilite Caused by fatty acid salts in GCK-12H.

[0182] Based on the above experiments, we selected sodium methyl cocoyl taurate as an anionic surfactant to improve the easy washing property. Comparative Examples 54-58 and Examples 1-6 Anionic Surfactant and Amphoteric Surfactant Compound Screening Experiment

[0183] Comparative Examples 54-58 and Examples 1-6 provide a makeup remover cream composition, the raw materials and weight parts of the makeup remover cream composition are shown in Table 12. The preparation method of the makeup remover cream composition is as follows:

[0184] According to the weight proportions of the raw materials in comparative examples 54-58 and embodiments 1-6 shown in Table 12, ethylhexyl palmitate, synthetic wax, propylene glycol laurate, sorbitol polyether-30 tetraoleate, PEG-20 glyceryl triisostearate, and butylene glycol are stirred and heated to 120-130°C by electric heating to dissolve, then cooled to 95°C in a water bath, isohexadecane, water, CI17200, sodium methyl cocoyl taurate, and various amphoteric surfactants are added, stirred evenly, and the resulting makeup remover cream composition is kept at 95°C for 30 minutes to evaluate transparency stability (with synthetic wax), stratification stability (with synthetic wax), presence of floating objects, gel feel, easy rinsing, makeup removal ability, and moisturizing performance. The performance test results of the makeup remover cream compositions prepared in each comparative example are shown in Table 12, and the stability photos are shown in Table 12. Fig.11 As shown in the picture above, are there any floating objects? Fig.11 As shown in the figure below.

[0185] Table 12

[0186]

[0187] From Table 12 and Fig.11 The results show that when only anionic surfactants are added to Comparative Example 54, the floating matter test is not passed. When anionic surfactants and amphoteric surfactants are added to Examples 1-6 at the same time, and the total amount of the two added is between 0.52-1.95 parts, and the mass ratio of the two is between 1:0.98-1.16, the transparent stability (addition of synthetic wax) test is high temperature clear, and there is no stratification phenomenon in the stratification stability (addition of synthetic wax) test. The test of whether there are floating objects is passed, the gel sense test effect is excellent, the easy washing test effect is qualified or excellent, the makeup removal performance test effect is qualified or excellent, and the moisturizing performance test effect is a significant increase in moisturizing degree. The mass ratio of anionic surfactants and amphoteric surfactants added to Comparative Examples 55 and 56 is only 1:0.39, and both fail the floating matter test. The mass ratio of anionic surfactants and amphoteric surfactants added to Comparative Example 57 is 1:3.5, which will result in floating objects and fail the easy washing test. The total amount of anionic surfactants and amphoteric surfactants added to Comparative Example 58 is only 0.39 parts, and the easy washing test fails.

[0188] It can be seen from the above results that only when the total amount of anionic surfactants and amphoteric surfactants is within a certain range and the two are compounded at a specific mass ratio, can all of the transparency stability (addition of synthetic wax) test, stratification stability (addition of synthetic wax) test, floating matter test, gel feel test, rinseability test and makeup removal performance test pass, and the moisturizing performance test shows that the moisturizing degree is greatly improved.

[0189] Examples 7-11 and Comparative Examples 59-60

[0190] Examples 7-11 and Comparative Examples 59-60 provide a makeup remover cream composition, the raw materials and weight parts of the makeup remover cream composition are shown in Table 13. The preparation method of the makeup remover cream composition is the same as that of Examples 1-6. The obtained makeup remover cream composition is kept at 95°C for 30 minutes to evaluate the transparency stability (addition of synthetic wax), stratification stability (addition of synthetic wax), presence of floating matter, gel feel, easy washing, makeup removal ability and moisturizing effect. The performance test results of the makeup remover cream compositions prepared in each comparative example are shown in Table 13.

[0191] Table 13

[0192]

[0193] From the results in Table 13, it can be seen that Examples 7-8 only change the amount of water added (supplemented with ethylhexyl palmitate) compared with Comparative Example 59. When the amount of water added was less than 11 parts, the tests of transparency stability (addition of synthetic wax) and stratification stability (addition of synthetic wax) were passed; however, when the amount of water added exceeded 11 parts, the test of transparency stability (addition of synthetic wax) failed, and the material body became turbid.

[0194] Examples 9-11 use different combinations of oils and synthetic waxes, and all pass various tests.

[0195] In addition, the moisturizing properties of the makeup remover cream compositions prepared in Examples 7-11 were tested, and the results were all: ○ (moisturizing properties were greatly improved), indicating that the makeup remover cream compositions prepared in the present invention have good moisturizing effects.

[0196] Example 12

[0197] Example 12 provides a makeup remover cream composition, the raw materials and weight parts of the makeup remover cream composition are basically the same as those of Example 11, the only difference is that CI17200 is not added, and water is used to make up. The preparation method is the same as that of Example 11, and the test results of various properties of the prepared makeup remover cream composition are basically the same as those of Example 11.

[0198] The makeup remover cream composition prepared in Example 11 was subjected to a dual-continuous phase test. The specific test method was as follows: water-soluble color powder CI42090 and oil-soluble color powder CI26100 were added to the makeup remover cream composition at 95°C to observe the diffusion of the pigments. If both can diffuse, it is proved to be a dual-continuous phase. The results are as follows: Fig.12 As shown, both the water-soluble color powder CI42090 and the oil-soluble color powder CI26100 diffused within 1 minute, thereby proving that the makeup remover cream composition prepared by the present invention is a dual continuous phase.

[0199] In addition, the makeup remover cream compositions prepared in Examples 1-10 of the present invention are also proved to be bicontinuous phases.

[0200] Examples 13-19

[0201] Examples 13-19 provide a makeup remover cream composition, the raw materials and weight parts of the makeup remover cream composition are shown in Table 14. The preparation method of the makeup remover cream composition is as follows:

[0202] According to the weight parts of each raw material of Examples 13-19 shown in Table 14, ethylhexyl palmitate, isopropyl myristate, tri(ethylhexanoin), isononyl isononanoate, synthetic wax, propylene glycol laurate, sorbitol polyether-30 tetraoleate, sorbitol polyether-30 tetraisostearate, PEG-7 glyceryl cocoate, PEG-8 glyceryl isostearate, PEG-20 glyceryl triisostearate and butylene glycol were heated to 120-130° C. by electric heating and stirred to dissolve, then cooled to 95° C. in a water bath, isohexadecane, isododecane, water, CI17200, sodium methyl cocoyl taurate and various amphoteric surfactants (lauryl betaine, lauramidopropyl betaine, cocamidopropyl betaine) were added, and stirred evenly to obtain a makeup remover cream composition. The obtained makeup remover cream composition was kept at 95° C. for 30 minutes, and the transparency stability (with synthetic wax), stratification stability (with synthetic wax), presence of floating matter, gel feel, easy washing, makeup removal ability and moisturizing performance were evaluated. The performance test results of the makeup remover cream compositions prepared in each comparative example are shown in Table 14.

[0203] Table 14

[0204]

[0205]

[0206] Examples 20-22 and Comparative Examples 60-63

[0207] Examples 20-22 and Comparative Examples 60-63 provide a makeup remover cream composition, the raw materials and weight parts of the makeup remover cream composition are shown in Table 15. The preparation method of the makeup remover cream composition is the same as that of Examples 1-6. The obtained makeup remover cream composition is kept at 95°C for 30 minutes to evaluate the transparency stability (addition of synthetic wax), stratification stability (addition of synthetic wax), presence of floating matter, gel feel, easy washing, makeup removal ability and moisturizing performance. The performance test results of the makeup remover cream compositions prepared in each embodiment and comparative example are shown in Table 15.

[0208] Table 15

[0209]

[0210] The present invention has many specific application paths, and the above is only a preferred embodiment of the present invention. It should be pointed out that the above embodiments are only used to illustrate the present invention, and are not used to limit the protection scope of the present invention. For those of ordinary skill in the art, several improvements can be made without departing from the principle of the present invention, and these improvements should also be regarded as the protection scope of the present invention.

Claims

1. A dual-continuous phase makeup remover cream composition, characterized in that: The composition comprises the following components in parts by weight: Wherein, the nonionic surfactant comprises the following components: a) at least one of sorbitan polyether-30 tetraoleate and sorbitan polyether-30 tetraisostearate; b) at least one of PEG-20 glyceryl triisostearate, PEG-7 glyceryl cocoate, and PEG-8 glyceryl isostearate; The ionic surfactants include anionic surfactants and amphoteric surfactants.

2. The dual-continuous phase makeup remover cream composition according to claim 1, characterized in that: In the nonionic surfactant, the mass ratio of component a) to component b) is 1:1 to 6:

1.

3. The dual-phase makeup remover cream composition according to claim 1, characterized in that: The polyol is at least one of butanediol, 1,2-pentanediol and 1,2-hexanediol.

4. The dual-continuous phase makeup remover cream composition according to claim 1, characterized in that: The amphiphilic substance is at least one of propylene glycol laurate and isostearic acid.

5. The dual-continuous phase makeup remover cream composition according to claim 1, characterized in that: The anionic surfactant is sodium methyl cocoyl taurate.

6. The dual-continuous phase makeup remover cream composition according to claim 1, characterized in that: The amphoteric surfactant is at least one of lauryl betaine, lauryl amidopropyl betaine and cocamidopropyl betaine.

7. The dual-continuous phase makeup remover cream composition according to claim 1, 5 or 6, characterized in that: The mass ratio of the anionic surfactant to the amphoteric surfactant is 1:0.98-1.

16.

8. The dual-continuous phase makeup remover cream composition according to claim 1, characterized in that: In the oil and synthetic wax system, the oil is selected from ethylhexyl palmitate, tri(ethylhexanoin)glyceryl, isononyl isononanoate, isopropyl myristate, caprylic / capric triglyceride, isotridecyl isononanoate, polydimethylsiloxane, phenyl trimethicone, diphenylsiloxyphenyl trimethicone, C12-15 alcohol benzoate, neopentyl glycol di(ethylhexanoate), butylene glycol dicaprylate / dicaprate, propylene glycol dicaprylate / dicaprate, cetyl alcohol ethylhexanoate, C12 At least one of benzyl alcohol, ...

9. The dual-continuous phase makeup remover cream composition according to claim 1, characterized in that: The makeup remover cream composition also includes other auxiliary agents; The other auxiliary agents include at least one of antioxidants, preservatives, pigments, flavors, chelating agents, and other functional ingredients.

10. A method for preparing the dual-continuous phase makeup remover cream composition according to any one of claims 1 to 9, characterized in that: The following steps are involved: Heat the non-volatile oil and synthetic wax, non-ionic surfactant, amphiphilic substance and polyol in the oil and synthetic wax system to 120-130°C to dissolve; then cool to 93-97°C, add ionic surfactant, water, volatile oil in the oil and synthetic wax system, stir evenly to obtain the product.

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