Solid makeup removing bar and preparation method thereof

Abstract

The invention relates to a makeup removing product, in particular to a solid makeup removing bar and a preparation method thereof. The invention relates to a solid makeup removing bar, which is prepared from 45 to 70 percent of emollient, 14 to 26 percent of compound thickening agent, 14 to 22 percent of surfactant, 1.0569 to 3.3124 percent of skin conditioner, 0.0004 to 0.0008 percent of emulsifier and 0.3 to 0.7 percent of aromatic, wherein the compound thickening agent comprises microcrystalline wax, polyethylene and beewax in a weight ratio of (3-5): (2-4): (2-4); the preparation method of the solid makeup removing bar comprises the following steps: weighing the emollient, the compound thickening agent and the surfactant according to the formula ratio to form a component A; completely melting the component A at 85-90 DEG C until the component A is transparent; weighing the skin conditioner, the emulsifier and the aromatic according to the formula ratio to obtain a component B; cooling the component A to 55-60 DEG C, adding the component B, uniformly stirring, filling into a mold, and cooling and molding to obtain the solid makeup removing bar. The makeup remover has the advantages of good forming effect and makeup removing effect.

Description

Technical Field

[0001] The invention relates to a makeup remover, in particular to a solid makeup remover stick and a preparation method thereof. Background Art

[0002] Common makeup removal products include makeup remover water, makeup remover oil and makeup remover cream. Both makeup remover water and makeup remover oil are in liquid form, and generally require the use of makeup remover cotton to clean the skin, which is inconvenient to use and can easily damage the skin due to mechanical friction during long-term use; makeup remover cream is viscous, and when used, it needs to be scooped out with tools and rubbed evenly by hand before it can be applied to the skin for cleaning, which is also inconvenient to use.

[0003] The industry has made improvements and proposed solid makeup remover products. For example, a Chinese patent discloses a makeup remover stick and a method for preparing the same. The application publication number is CN109248105A. Paragraph 0022 of the specification states: A method for preparing the makeup remover stick comprises the following steps: putting C12-15 alcohol benzoate and a thickener into a wax melting pot, heating until completely dissolved, and keeping warm for 20 to 30 minutes; then adding a complex of PEG-20 glyceryl triisostearate and tocopherol, sorbitan polyether-30 tetraisostearate, plant squalane, olive oil, bisabolol, a natural moisturizer and tea tree essential oil in sequence, stirring evenly, cooling to 80 to 85°C, taking samples for testing, filling and cooling after passing the test, and obtaining the makeup remover stick.

[0004] It can be seen that the difference between the so-called solid makeup remover stick and the makeup remover cream is that the solid makeup remover stick contains a certain amount of wax, and the makeup remover cream is integrated into a stick shape similar to lipstick through the molding effect of the wax, so as to facilitate use. However, it is easy to understand that since the makeup remover ingredients inevitably contain surfactants, which will dissolve the wax, it is difficult for the existing technology to have compatibility between the molding effect and the makeup remover effect. There is an urgent need for a solid makeup remover stick with both excellent molding effect and makeup remover effect. Summary of the invention

[0005] In view of the deficiencies in the prior art, one of the objects of the present invention is to provide a solid makeup remover stick having both excellent molding effect and makeup removal effect; a second object of the present invention is to provide a method for preparing a solid makeup remover stick.

[0006] One of the purposes of the present invention is achieved through the following technical solutions:

[0007] A solid makeup remover stick is prepared by comprising the following components in percentage by weight:

[0008] Emollient 45-70%, compound thickener 14-26%, surfactant 14-22%, skin conditioner 1.0569-3.3124%, emulsifier 0.0004-0.0008% and fragrance 0.3-0.7;

[0009] The compound thickener comprises microcrystalline wax, polyethylene (polyethylene wax) and beeswax in a weight ratio of 3-5:2-4:2-4.

[0010] Preferably, the emollient comprises ethylhexyl palmitate and caprylic / capric triglyceride in a weight ratio of 6-9:3-5.

[0011] Preferably, the surfactant comprises PEG-20 glyceryl triisostearate and sorbitan polyether-30 tetraoleate in a weight ratio of 2-4:5-7.

[0012] Preferably, the skin conditioning agent comprises a skin conditioning agent comprising a weight ratio of

[0013] 5000-15000:5000-15000:500-1500:10-50:54-74:500-1500 of grape (Vitisvinifera L.) seed oil, olive (Olea europaea L.) fruit oil, tocopherol acetate, sodium hyaluronate, castor (Ricinus communis L.) seed oil and bisabolol. Bisabolol has anti-inflammatory and antibacterial effects, soothes the skin, promotes wound healing and skin metabolism, and improves the skin's ability to resist irritation. Tocopherol acetate has an antioxidant effect, moisturizes and nourishes the skin, making it soft and elastic. Sodium hyaluronate has a moisturizing effect, forms a thin film on the skin surface, makes the skin feel smooth, and protects the skin.

[0014] Preferably, the emulsifier is hydrogenated castor oil.

[0015] Preferably, the fragrance is essence.

[0016] The second object of the present invention is achieved by the following technical solutions:

[0017] A method for preparing a solid makeup remover stick comprises the following steps:

[0018] S1 weighs the formula amount of emollient, compound thickener and surfactant, which is component A; wherein the compound thickener comprises microcrystalline wax, polyethylene (polyethylene wax) and beeswax in a weight ratio of 3-5:2-4:2-4;

[0019] S2: completely melt component A at 85-90℃ until it becomes transparent;

[0020] S3 weighs the formulated amount of skin conditioning agent, emulsifier and fragrance, which is component B;

[0021] S4 cools component A to 55-60°C and then adds component B, stirs evenly, fills into a mold, and cools and shapes to obtain a solid makeup remover stick.

[0022] Preferably, the step S1 further comprises a step of preparing microcrystalline wax, and the preparation method of the microcrystalline wax is:

[0023] Take 76 parts by weight of No. 80 microcrystalline wax raw material, heat it to 85°C to melt, then add 2.2 parts by weight of diethylene glycol fatty acid ester, 0.5 parts by weight of sorbitan monopalmitate, 0.3 parts by weight of triacetamide oleate and 2.2 parts by weight of pentadecanoic acid, stir evenly to obtain oil phase material; take 18.8 parts by weight of 2.6wt% Na2CO3 solution and heat it to 89°C to obtain water phase material; stir and mix the oil phase and water phase materials at a speed of 1000r / min, stir for 10 minutes, form an oil-in-water emulsion, and then sweat and purify to obtain microcrystalline wax, the oil content of which is less than 0.9%. Its significance lies in that the low oil content reduces the probability of surfactant dissolving it, which can improve the efficiency of makeup remover stick molding, and can also be used as a friction agent to improve the makeup removal efficiency when it contacts the skin.

[0024] Preferably, the step S1 further comprises a step of modifying beeswax, and the method for modifying the beeswax is:

[0025] Take 0.32 parts by weight of octadecanoic acid and 0.74 parts by weight of nano zinc oxide, stir and mix, add 65 parts by weight of anhydrous alcohol, stir at 15000 r / min for 60 minutes, spray dry to obtain a modified material, mix the modified material with 10 parts by weight of beeswax, add 10 parts by weight of deionized water, stir at 15000 r / min for 60 minutes, freeze dry and sieve to obtain modified beeswax. Its significance lies in using common friction agents to modify and combine with the common molding wax of makeup remover sticks, so that the wax material has higher friction and hydrophobic and oil-resistant properties, thereby reducing the probability of being dissolved by surfactants, and can be used as a friction agent to improve the makeup removal rate after contacting the skin.

[0026] Preferably, the step S4 also includes a sampling and testing step.

[0027] The beneficial effects of the present invention are as follows: the product uses PEG-20 glyceryl triisostearate and sorbitan polyether-30 tetraoleate as surfactants, has excellent self-emulsification ability and makeup removal ability, and is gentle and soft on the skin; uses grape seed oil, olive fruit oil, ethylhexyl palmitate, and caprylic / capric triglyceride as emollients, which can keep the skin moisturized and prevent skin dryness; bisabolol is a skin conditioning agent, which has the effects of anti-inflammatory and antibacterial, soothing the skin, promoting wound healing and skin metabolism, and improving the skin's anti-irritation ability; uses tocopherol acetate, which has an antioxidant effect, moisturizes and nourishes the skin, and makes the skin soft and elastic; uses sodium hyaluronate, which has a moisturizing effect, makes the skin have a good smooth feeling, and protects the skin.

[0028] The invention also has the advantages of good shaping effect and good makeup removal effect. DETAILED DESCRIPTION

[0029] The following is further described in conjunction with specific implementation methods:

[0030] Example 1

[0031] Preparation of microcrystalline wax: Take 76 parts by weight of No. 80 microcrystalline wax raw material, heat it to 85°C to melt it, then add 2.2 parts by weight of diethylene glycol fatty acid ester, 0.5 parts by weight of sorbitan monopalmitate, 0.3 parts by weight of triethylamide oleate and 2.2 parts by weight of pentadecanoic acid, and stir evenly to obtain oil phase material; take 18.8 parts by weight of 2.6wt% Na2CO3 solution and heat it to 89°C to obtain water phase material; stir and mix the oil phase and water phase materials at a speed of 1000r / min for 10 minutes to form an oil-in-water emulsion, and then obtain microcrystalline wax through sweating and refining, and its oil content is less than 0.9%.

[0032] Beeswax modification: Take 0.32 parts by weight of octadecanoic acid and 0.74 parts by weight of nano zinc oxide, stir and mix, then add 65 parts by weight of anhydrous alcohol, stir at 15000 r / min for 60 min, spray dry to obtain a modified material, mix the modified material with 10 parts by weight of beeswax, add 10 parts by weight of deionized water, stir at 15000 r / min for 60 min, freeze dry and sieve to obtain modified beeswax.

[0033] Weigh 31% ethylhexyl palmitate, 16% caprylic / capric triglyceride, 6.5% microcrystalline wax, 4.5% polyethylene, 4.5% beeswax (modified), 4.5% PEG-20 glyceryl triisostearate and 10.5% sorbitan polyether-30 tetraoleate according to weight percentage; this is component A.

[0034] Completely melt component A at 85°C until it becomes transparent.

[0035] According to weight %, 0.6% grape seed oil, 0.6% olive oil, 0.06% tocopherol acetate, 0.001% sodium hyaluronate, 0.0004% hydrogenated castor oil, 0.0054% castor seed oil, 0.06% bisabolol and 0.35% essence were weighed; this is component B.

[0036] Component A is cooled to 55°C and then added to component B. After stirring evenly, it is tested for compliance (according to current laws and industry standards). If it is qualified, it is poured into a mold and cooled to form a solid makeup remover stick.

[0037] Example 2

[0038] Preparation of microcrystalline wax: Take 76 parts by weight of No. 80 microcrystalline wax raw material, heat it to 85°C to melt it, then add 2.2 parts by weight of diethylene glycol fatty acid ester, 0.5 parts by weight of sorbitan monopalmitate, 0.3 parts by weight of triethylamide oleate and 2.2 parts by weight of pentadecanoic acid, and stir evenly to obtain oil phase material; take 18.8 parts by weight of 2.6wt% Na2CO3 solution and heat it to 89°C to obtain water phase material; stir and mix the oil phase and water phase materials at a speed of 1000r / min for 10 minutes to form an oil-in-water emulsion, and then obtain microcrystalline wax through sweating and refining, and its oil content is less than 0.9%.

[0039] Beeswax modification: Take 0.32 parts by weight of octadecanoic acid and 0.74 parts by weight of nano zinc oxide, stir and mix, then add 65 parts by weight of anhydrous alcohol, stir at 15000 r / min for 60 min, spray dry to obtain a modified material, mix the modified material with 10 parts by weight of beeswax, add 10 parts by weight of deionized water, stir at 15000 r / min for 60 min, freeze dry and sieve to obtain modified beeswax.

[0040] Weigh 44% ethylhexyl palmitate, 24% caprylic / capric triglyceride, 9.5% microcrystalline wax, 7.5% polyethylene, 7.5% beeswax (modified), 7.5% PEG-20 glyceryl triisostearate and 13.5% sorbitan polyether-30 tetraoleate according to weight percentage; this is component A.

[0041] Completely melt component A at 90°C until it becomes transparent.

[0042] According to weight %, 1.4% grape seed oil, 1.4% olive oil, 0.14% tocopherol acetate, 0.005% sodium hyaluronate, 0.0008% hydrogenated castor oil, 0.0074% castor seed oil, 0.14% bisabolol and 0.65% essence were weighed; this is component B.

[0043] Component A is cooled to 60°C and then added to component B. After stirring evenly, it is tested for compliance (according to current laws and industry standards). If it is qualified, it is poured into a mold and cooled to form a solid makeup remover stick.

[0044] Example 3

[0045] Preparation of microcrystalline wax: Take 76 parts by weight of No. 80 microcrystalline wax raw material, heat it to 85°C to melt it, then add 2.2 parts by weight of diethylene glycol fatty acid ester, 0.5 parts by weight of sorbitan monopalmitate, 0.3 parts by weight of triethylamide oleate and 2.2 parts by weight of pentadecanoic acid, and stir evenly to obtain oil phase material; take 18.8 parts by weight of 2.6wt% Na2CO3 solution and heat it to 89°C to obtain water phase material; stir and mix the oil phase and water phase materials at a speed of 1000r / min for 10 minutes to form an oil-in-water emulsion, and then obtain microcrystalline wax through sweating and refining, and its oil content is less than 0.9%.

[0046] Beeswax modification: Take 0.32 parts by weight of octadecanoic acid and 0.74 parts by weight of nano zinc oxide, stir and mix, then add 65 parts by weight of anhydrous alcohol, stir at 15000 r / min for 60 min, spray dry to obtain a modified material, mix the modified material with 10 parts by weight of beeswax, add 10 parts by weight of deionized water, stir at 15000 r / min for 60 min, freeze dry and sieve to obtain modified beeswax.

[0047] Weigh 40% ethylhexyl palmitate, 20% caprylic / capric triglyceride, 8% microcrystalline wax, 6% polyethylene, 6% beeswax (modified), 6% PEG-20 glyceryl triisostearate and 12% sorbitan polyether-30 tetraoleate according to weight percentage; this is component A.

[0048] Completely melt component A at 90°C until it becomes transparent.

[0049] According to weight %, 1.1% grape seed oil, 1.1% olive oil, 0.11% tocopherol acetate, 0.003% sodium hyaluronate, 0.0006% hydrogenated castor oil, 0.0064% castor seed oil, 0.11% bisabolol and 0.5% essence were weighed; this is component B.

[0050] Component A is cooled to 60°C and then added to component B. After stirring evenly, it is tested for compliance (according to current laws and industry standards). If it is qualified, it is poured into a mold and cooled to form a solid makeup remover stick.

[0051] Comparative Example 1

[0052] A makeup remover stick and a preparation method thereof are used, the application publication number is CN109248105A, and the technical solution is recorded in Example 1 of the specification.

[0053] Comparative Example 2

[0054] The microcrystalline wax, polyethylene and beeswax were all replaced with paraffin wax of equal weight, and the remaining steps were the same as in Example 3.

[0055] Molding effect test experiment

[0056] 1. Experimental purpose: to verify that the hardness of the solid makeup remover stick obtained by the present invention is better than that of similar products, that is, it has a better molding effect.

[0057] 2. Experimental method: Take the solid makeup remover sticks obtained in Examples 1-3 and Comparative Examples 1-2, let them stand at room temperature (25° C.) for 24 hours, and then use the cheese wire method to measure their hardness.

[0058] 3. Experimental results, see Table 1.

[0059] Table 1 Hardness statistics

[0060] sample Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Hardness(gf) 27.81 30.53 28.34 20.11 20.04 Standard Deviation 2.35 3.07 2.66 1.87 2.30

[0061] As shown in Table 1, the solid makeup remover stick obtained by the present invention has better hardness than the prior art (Comparative Example 1). Similar to lipstick, a higher hardness makes it easier to pass through a mold and less likely to break during use. Although the same amount of wax was added to Comparative Example 2, it was not the compound thickener obtained by the present invention, and the ideal hardness was not achieved.

[0062] Makeup removal effect test experiment

[0063] 1. Experimental purpose: To verify that the makeup removal rate of the solid makeup remover stick obtained by the present invention is better than that of similar products.

[0064] 2. Experimental method: 20 volunteers aged 20-35 years old who have the habit of wearing full face makeup were selected. Each product (solid makeup remover sticks obtained in Examples 1-3 and Comparative Examples 1-2) was used for three days. A questionnaire was submitted immediately after each sample was used. The questionnaire was scored in terms of makeup removal rate, ease of cleaning, and mildness of use. The scoring standard was 1-5 points, with 5 points being the best and 1 point being the worst.

[0065] 3. Experimental results, see Table 2.

[0066] sample Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Makeup removal rate 3.6 3.7 4.1 3.2 3.0 Ease of cleaning 3.1 3.1 3.2 3.1 3.3 Gentleness of use 4.0 3.9 3.9 4.0 3.9

[0067] It can be seen from Table 2 that in terms of makeup removal effect, the present invention is better than the prior art, especially Example 3 has a score of 4.1, which is 28% higher than 3.2 of the prior art (Comparative Example 1); in addition, in terms of cleaning and mildness, the solid makeup remover stick obtained by the present invention is no substantially different from the prior art, that is, the present invention does not increase the difficulty of cleaning, nor does it cause obvious irritation to the skin.

[0068] The above embodiments and descriptions are only for illustrating the principles and best embodiments of the present invention. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and improvements, all of which fall within the scope of the present invention to be protected.

Claims

1. A solid makeup remover stick, characterized in that: The invention is prepared by comprising the following components in weight percentage: Emollient 45-70%, compound thickener 14-26%, surfactant 14-22%, skin conditioner 1.0569-3.3124%, emulsifier 0.0004-0.0008% and fragrance 0.3-0.7; The compound thickener comprises microcrystalline wax, polyethylene and beeswax in a weight ratio of 3-5:2-4:2-4.

2. The solid makeup remover stick according to claim 1, characterized in that: The emollient comprises ethylhexyl palmitate and caprylic / capric triglyceride in a weight ratio of 6-9:3-5.

3. The solid makeup remover stick according to claim 1, characterized in that: The surfactant includes PEG-20 glyceryl triisostearate and sorbitan polyether-30 tetraoleate in a weight ratio of 2-4:5-7.

4. The solid makeup remover stick according to claim 1, characterized in that: The skin conditioner comprises grape seed oil, olive fruit oil, tocopherol acetate, sodium hyaluronate, castor seed oil and bisabolol in a weight ratio of 5000-15000:5000-15000:500-1500:10-50:54-74:500-1500.

5. The solid makeup remover stick according to claim 1, characterized in that: The emulsifier is hydrogenated castor oil.

6. The solid makeup remover stick according to claim 1, characterized in that: The aromatic agent is essence.

7. A method for preparing the solid makeup remover stick according to claim 1, characterized in that: The following steps are involved: S1 weighs the formula amount of emollient, compound thickener and surfactant, which is component A; wherein the compound thickener comprises microcrystalline wax, polyethylene and beeswax in a weight ratio of 3-5:2-4:2-4; S2: completely melt component A at 85-90℃ until it becomes transparent; S3 weighs the formulated amount of skin conditioning agent, emulsifier and fragrance, which is component B; S4 cools component A to 55-60°C and then adds component B, stirs evenly, fills into a mold, and cools and shapes to obtain a solid makeup remover stick.

8. The method for preparing a solid makeup remover stick according to claim 7, characterized in that: The step S1 also includes a step of preparing microcrystalline wax, and the preparation method of the microcrystalline wax is: Take 76 parts by weight of No. 80 microcrystalline wax raw material, heat it to 85°C to melt it, then add 2.2 parts by weight of diethylene glycol fatty acid ester, 0.5 parts by weight of sorbitan monopalmitate, 0.3 parts by weight of triethylamide oleate and 2.2 parts by weight of pentadecanoic acid, and stir evenly to obtain oil phase material; take 18.8 parts by weight of 2.6wt% Na2CO3 solution and heat it to 89°C to obtain water phase material; stir and mix the oil phase and water phase materials at a speed of 1000r / min for 10 minutes to form an oil-in-water emulsion, and then obtain microcrystalline wax through sweating and refining, and its oil content is less than 0.9%.

9. The method for preparing a solid makeup remover stick according to claim 7, characterized in that: The step S1 further comprises a step of modifying beeswax, and the modification method of the beeswax is: Take 0.32 parts by weight of octadecanoic acid and 0.74 parts by weight of nano zinc oxide, stir and mix, then add 65 parts by weight of anhydrous alcohol, stir at 15000 r / min for 60 min, spray dry to obtain a modified material, mix the modified material with 10 parts by weight of beeswax, add 10 parts by weight of deionized water, stir at 15000 r / min for 60 min, freeze dry and sieve to obtain modified beeswax.

10. The method for preparing a solid makeup remover stick according to claim 7, characterized in that: The step S4 also includes a sampling and testing step.