A kind of isolation rod and its preparation method

Abstract

The present invention relates to an isolation rod and a preparation method thereof, and belongs to the technical field of cosmetics and their preparation. The isolation rod of the present invention comprises the following components in parts by weight: 8.5-66 parts of skin conditioner, 0.2-66.5 parts of emollient, 2.5-21 parts of thickener, and 0.1-1.5 parts of moisturizer; the skin conditioner is composed of vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer, polymethylsilsesquioxane, cyclopentasiloxane / polydimethylsiloxane cross-linked polymer, polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer / isododecane and phytosteryl isostearate. The present invention provides a light and smooth all-oil stick-shaped isolation product, which has the effects of moisturizing, anti-wrinkle and wrinkle-covering, invisible pores and concealing blemishes.

Description

Technical Field

[0001] The invention belongs to the technical field of skin care products and preparation thereof, and relates to an isolation rod and a preparation method thereof. Background Art

[0002] Currently, most isolation products are prepared as isolation creams, but there are still some problems with isolation creams. For example, isolation creams can never truly isolate makeup, and isolation creams are an emulsified system, which can easily clog pores. In addition, applying makeup after using the isolation cream will feel sticky, and the isolation cream cannot isolate the chemical components of makeup. Moreover, isolation creams will also hinder skin detoxification. If you do not remove makeup after using the isolation cream, the chemicals contained in the isolation cream will clog the pores, accelerate the aging of the skin, and cause spots and wrinkles. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an isolation stick having unique smooth skin feel and the effects of isolating makeup, invisible pores, anti-wrinkle, and maintaining long-lasting makeup, and a preparation method thereof.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] In a first aspect, the present invention provides a separation stick comprising the following components in parts by weight: 8.5-66 parts of a skin conditioner, 0.2-66.5 parts of an emollient, 2.5-21 parts of a thickener, and 0.1-1.5 parts of a humectant;

[0006] The skin conditioning agent is composed of vinyl dimethicone / methylsiloxane silsesquioxane crosspolymer, polymethylsilsesquioxane, cyclopentasiloxane / dimethicone crosspolymer, dimethicone / vinyl dimethicone crosspolymer / isododecane and phytosteryl isostearate.

[0007] Vinyl dimethicone / methicone silsesquioxane crosspolymer is a spherical structured silicone composite powder formed by cross-linking silicone rubber and silicone resin. It has excellent smoothness and elasticity and can make the skin smooth.

[0008] Polymethylsilsesquioxane is a spherical silicone powder that has anti-caking and anti-slip properties in addition to lubricity and water resistance.

[0009] Vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer and polymethylsilsesquioxane are both composed of many tiny particles with an average particle size of 10±2μm. They are easily evenly distributed in the formula. Compounding them as skin conditioners can make them disperse better in the formula, thereby better regulating the skin feel and bringing a smooth, tender powdery touch to the skin. At the same time, they can absorb an appropriate amount of oil, have a better oil control effect, enhance the soft focus effect, and effectively cover fine lines without clogging pores. Adding them to the isolation rod of the present invention can make the skin look more transparent and natural after use. Vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer and polymethylsilsesquioxane both have good fluidity, can promote the dispersion of cosmetic raw materials, and prevent agglomeration. When used in the isolation rod of the present invention, they can synergistically improve the oil control effect and improve the skin feel and spreadability.

[0010] Cyclopentasiloxane / dimethicone crosspolymer and dimethicone / vinyl dimethicone crosspolymer / isododecane are both silicone elastomers, and their combination with phytosteryl isostearate has a synergistic effect in moisturizing. When used with the above-mentioned vinyl dimethicone / methylsiloxane silsesquioxane crosspolymer and polymethyl silsesquioxane, the isolation stick of the present invention can maintain a certain degree of moisturizing and nourishing while controlling oil.

[0011] As a preferred embodiment of the isolation rod of the present invention, the isolation rod comprises the following components in parts by weight: 40.2-64 parts of skin conditioner, 36.9-66.5 parts of emollient, 11.5-21 parts of thickener, and 0.7-1.5 parts of moisturizer.

[0012] The components of the isolation stick of the present invention are compounded in a preferred ratio, so that the isolation stick has better moisturizing, wrinkle-covering and anti-wrinkle, invisible pores, oil-controlling, makeup-fixing and blemish-covering effects.

[0013] As a preferred embodiment of the isolation rod of the present invention, the mass ratio of the vinyl dimethicone / polymethylsiloxane silsesquioxane crosspolymer, polymethylsilsesquioxane, cyclopentasiloxane / polydimethicone crosspolymer, polydimethicone / vinyl dimethicone crosspolymer / isododecane, and phytosterol isostearate is vinyl dimethicone / polymethylsiloxane silsesquioxane crosspolymer: polymethylsilsesquioxane: cyclopentasiloxane / polydimethicone crosspolymer: polydimethicone / vinyl dimethicone crosspolymer / isododecane: phytosterol isostearate = (3.5-10): (5-10): (15-25): (11-20): (0.1-1).

[0014] The present invention compounded the two raw materials of vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer and polymethyl silsesquioxane in a specific ratio, so that the isolation rod of the present invention has the following advantages: 1. Uniform and single particle size distribution is one of the keys to stably and accurately present skin quality. The vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer and polymethyl silsesquioxane of the present invention have regular particle size distribution, which can better improve skin feel. The spherical structure can evenly fill fine lines and soft glue vision, bringing a refreshing and smooth touch, thereby achieving a natural makeup effect; 2. The spherical structure can reduce the astringency and stickiness brought by other oils or thickeners, and the mesh product makes the product more skin-friendly and breathable; 3. After the vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer and polymethyl silsesquioxane are compounded, a layered stacking structure is formed, which can absorb oil, and the 100% silicone resin component provides a refreshing and excellent makeup setting effect. Vinyl dimethicone / methicone silsesquioxane crosspolymer and methyl silsesquioxane are combined with cyclopentasiloxane / dimethicone crosspolymer, dimethicone / vinyl dimethicone crosspolymer / isododecane, and phytosteryl isostearate within the specific weight range described in the present invention. The isolation stick can maintain a certain degree of moisture retention and moisturizing while concealing pores, concealing blemishes, and controlling oil to set makeup. It has a synergistic effect in concealing pores, concealing blemishes, controlling oil to set makeup, and moisturizing.

[0015] As a preferred embodiment of the isolation rod described in the present invention, the mass ratio of the vinyl dimethicone / polymethylsiloxane silsesquioxane crosspolymer, polymethylsilsesquioxane, cyclopentasiloxane / polydimethicone crosspolymer, polydimethicone / vinyl dimethicone crosspolymer / isododecane, and phytosterol isostearate is vinyl dimethicone / polymethylsiloxane silsesquioxane crosspolymer: polymethylsilsesquioxane: cyclopentasiloxane / polydimethicone crosspolymer: polydimethicone / vinyl dimethicone crosspolymer / isododecane: phytosterol isostearate = (5.5-9): (7-9): (16-25): (12.5-20): (0.2-1).

[0016] The combination of vinyl dimethicone / methicone silsesquioxane crosspolymer, polymethyl silsesquioxane, cyclopentasiloxane / dimethicone crosspolymer, dimethicone / vinyl dimethicone crosspolymer / isododecane, and phytosteryl isostearate within the more preferred weight range of the present invention has better synergistic oil control effect and the effect of improving skin feel and spreadability, while maintaining a certain degree of moisturizing and nourishing, and has a synergistic effect in invisible pores, concealing blemishes, controlling oil and setting makeup, and moisturizing.

[0017] As a preferred embodiment of the isolation rod described in the present invention, the mass ratio of the vinyl dimethicone / polymethylsiloxane silsesquioxane crosspolymer, polymethylsilsesquioxane, cyclopentasiloxane / polydimethicone crosspolymer, polydimethicone / vinyl dimethicone crosspolymer / isododecane, and phytosterol isostearate is vinyl dimethicone / polymethylsiloxane silsesquioxane crosspolymer: polymethylsilsesquioxane: cyclopentasiloxane / polydimethicone crosspolymer: polydimethicone / vinyl dimethicone crosspolymer / isododecane: phytosterol isostearate = 7:8:20:16:0.5.

[0018] When the skin conditioning agent of the present invention is added in specific weight portions, the isolation stick has the best effects of invisible pores, concealing blemishes, controlling oil and setting makeup, and moisturizing.

[0019] As a preferred embodiment of the isolation rod of the present invention, the emollient includes the following components in parts by weight: 10.5-15 parts of isononyl isononanoate, 6.5-10 parts of ethylhexyl palmitate, 4.5-8 parts of phenyl trimethicone, 3.5-10 parts of diisostearyl malate, 0.2-2 parts of caprylic / capric triglyceride, and 0.2-0.5 parts of tridecyl trimellitate.

[0020] As a preferred embodiment of the isolation rod of the present invention, the thickener comprises the following components in parts by weight: 2.5-6 parts of synthetic wax, 2.5-5 parts of microcrystalline wax, and 6.5-10 parts of polyethylene.

[0021] As a preferred embodiment of the isolation rod of the present invention, the moisturizing agent comprises the following components in parts by weight: 0.5-0.8 parts of meadowfoam seed oil, 0.1-0.5 parts of glyceryl behenate, and 0.1-0.2 parts of sodium hyaluronate.

[0022] As a preferred embodiment of the isolation rod of the present invention, it also includes the following components in parts by weight: 0-0.1 parts of colorant, 0-0.2 parts of fragrance, and 0-0.6 parts of preservative;

[0023] The colorant is CI 15850; the fragrance is essence; and the preservative is phenoxyethanol.

[0024] The present invention selects a skin conditioner in specific weight portions to be matched with the emollient, thickener and moisturizer of the present invention, so that the isolation has a unique smooth skin feel and the effects of isolating makeup, making pores invisible, resisting wrinkles and maintaining a long-lasting makeup.

[0025] In a second aspect, the present invention provides a method for preparing the spacer rod, comprising the following steps:

[0026] S1, mixing cyclopentasiloxane / polydimethylsiloxane crosspolymer, polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer / isododecane and an emollient in the skin conditioner, and stirring to mix well;

[0027] S2, adding thickener and heating;

[0028] S3, cooling, adding vinyl dimethicone / polymethylsiloxane silsesquioxane cross-linked polymer and polymethylsilsesquioxane in the skin conditioning agent, and stirring to mix;

[0029] S4, cooling, adding phytosteryl isostearate, colorant, fragrance, moisturizer, and preservative in the skin conditioner, and stirring to mix;

[0030] S5. Heat up and fill cans.

[0031] In the step S1, the stirring method includes but is not limited to stirring with a stirrer at a speed of 1000 rpm / min to disperse evenly; in the step S2, the temperature is heated to 90°C; in the step S3, the temperature is lowered to 80°C, and the stirring method includes but is not limited to stirring with a stirrer until there are no particles, so that the material body is evenly dispersed; in the step S4, the temperature is lowered to 60°C; in the step S5, the temperature is raised to 80°C.

[0032] The preparation method of the isolation rod provided by the invention is simple to operate and has low cost, and the prepared full-oil rod-shaped product is light and smooth.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. The present invention provides a light and smooth all-oil stick isolation product, which has the functions of moisturizing, anti-wrinkle, invisible pores and concealing blemishes;

[0035] 2. Applying the isolation stick of the present invention before makeup can have a good concealing effect, and the makeup looks soft and natural;

[0036] 3. The isolation stick of the present invention can isolate harmful ingredients in makeup and protect the skin;

[0037] 4. The isolation stick of the present invention is a pore-invisible primer product, which has unique effects of smooth skin feel, makeup isolation, invisible pores, anti-wrinkle and long-lasting makeup maintenance. DETAILED DESCRIPTION

[0038] In order to better illustrate the purpose, technical solutions and advantages of the present invention, the present invention will be further described below in conjunction with specific embodiments.

[0039] Examples 1 to 5

[0040] Examples 1 to 5 are the isolation rods of the present invention, and their formulas are shown in Table 1.

[0041] The preparation method of the isolation rods described in Examples 1 to 5 is as follows:

[0042] S1. Mix the cyclopentasiloxane / dimethicone crosspolymer, dimethicone / vinyl dimethicone crosspolymer / isododecane and emollient in the skin conditioner into a container, and stir and disperse them evenly with a stirrer at a speed of 1000 rpm / min.

[0043] S2, add thickener and heat to 90°C;

[0044] S3, after the temperature drops to 80° C., vinyl dimethicone / polymethylsiloxane silsesquioxane cross-linked polymer and polymethylsilsesquioxane in the skin conditioning agent are added, and stirred with a mixer until there are no particles, so that the material is evenly dispersed;

[0045] S4. After the temperature drops to 60° C., add the phytosteryl isostearate, colorant, fragrance, moisturizer and preservative in the skin conditioner in sequence, and stir to disperse evenly.

[0046] S5. Raise the temperature to 80°C and fill the cans.

[0047] Table 1

[0048]

[0049]

[0050] Comparative Examples 1 to 6

[0051] Comparative Examples 1 to 6 are the isolation rods of the present invention, and their formulations are shown in Table 2.

[0052] The preparation method of the isolation rods described in Comparative Examples 1 to 6 is the same as that of Examples 1 to 5.

[0053] Table 2

[0054]

[0055]

[0056] Effect Example 1

[0057] The stability test was performed on the isolation rods described in Examples 1 to 5 and Comparative Examples 1 to 6. The stability test method was as follows: accelerated test at -5°C, 40°C, and 45°C for three months, accelerated test at 50°C for one month, and alternating hot and cold cycles at -5 to 40°C for one week, UV light test for one week, and no change after returning to normal temperature, indicating that the rods can be used normally. This was used as the judgment standard; pH value experimental method test: N / A; toxic substance content test method (lead, arsenic, mercury, cadmium) referred to the physical and chemical test method of the 2015 version of the China Cosmetic Safety Technical Specifications, and the test standards are shown in Table 3.

[0058] Table 3

[0059]

[0060] The test results are shown in Table 4.

[0061] Table 4

[0062]

[0063]

[0064] It can be seen from the results that the products of the present invention can all pass the stability test, and the content of toxic substances meets the requirements.

[0065] Effect Example 2

[0066] The isolation rod described in Example 1 was subjected to a microbial challenge test. The microbial challenge test method was tested according to USP51, 52, and 62. The results are shown in Table 5.

[0067] Table 5

[0068]

[0069] It can be seen from the results that the isolation rod described in Example 1 passed the microbial challenge experiment, indicating that it has a relatively effective and stable anti-corrosion system and can ensure the quality of the product during its shelf life.

[0070] Effect Example 3

[0071] The moisturizing degree, hydrating degree, pore concealing effect, makeup retention effect and makeup removal difficulty of the isolation sticks described in Examples 1 to 5 and Comparative Examples 1 to 6 were tested respectively, and the specific methods are as follows:

[0072] 66 women were randomly selected and divided into 11 groups, with 6 women in each group for testing.

[0073] The isolation stick samples of Examples 1 to 5 of the present invention and Comparative Examples 1 to 6 were applied in equal amounts on the left and right cheeks, respectively, and the moisturizing degree was scored on a scale of 1 to 10, with 10 being moisturizing and 1 being completely non-moisturizing.

[0074] The isolation stick samples of Examples 1 to 5 of the present invention and Comparative Examples 1 to 6 were applied in equal amounts on the left and right cheeks, respectively, and the moisturizing degree was scored on a scale of 1 to 10, with 10 being silky and 1 being very sticky.

[0075] The samples of the isolation sticks of Examples 1 to 5 and Comparative Examples 1 to 6 of the present invention were applied in equal amounts on the left and right faces, and then the changes in the pores of the left and right faces were carefully observed. The test scoring criteria are as follows: 10 points: very effective, invisible pores; 8 points: very effective, relatively invisible pores; 6 points: effective, relatively invisible pores; 4 points: a little effective, relatively enlarged pores; 2 points: no effect at all, enlarged pores.

[0076] The isolation stick samples of Examples 1 to 5 of the present invention and Comparative Examples 1 to 6 were applied in equal amounts to the left and right faces, respectively, and then the foundation was applied in equal amounts to the left and right faces. The makeup was observed after 6 hours, and the test scoring criteria were as follows: 10 points: the makeup was kept very well; 8 points: the makeup was kept well; 6 points: the makeup was slightly falling off; 4 points: the makeup was falling off; 2 points: the makeup was seriously falling off.

[0077] The isolation stick samples of Examples 1 to 5 of the present invention and Comparative Examples 1 to 6 were applied in equal amounts on the left and right faces, respectively, and the degree of difficulty in removing makeup was scored on a scale of 1 to 10, with 10 being difficult to remove and requiring makeup remover oil, and 1 being extremely easy to remove.

[0078] The testers scored according to the above scoring criteria, and finally all the scores were counted and the average was calculated.

[0079] The results are shown in Table 6.

[0080] Table 6

[0081]

[0082] From the results, it can be seen that the moisturizing degree of the isolation sticks described in Examples 1 to 5 of the present invention and Comparative Examples 1 to 3 is relatively high, while Comparative Examples 4 to 6 are relatively dry when used and difficult to apply makeup. In addition, the isolation sticks described in Examples 1 to 5 are relatively silky when used, while Comparative Examples 1 to 3 are relatively sticky when used. Moreover, the isolation sticks described in Examples 1 to 5 of the present invention have better pore-hiding effect and makeup-maintaining effect than Comparative Examples 1 to 3, and they need to be removed with makeup remover oil, and are less likely to fall off, indicating that the components of the skin conditioner described in the present invention have synergistic effects in terms of pore-hiding, oil-controlling, makeup-fixing and moisturizing. If any of the components is missing, the performance will be significantly reduced. Among them, Example 1 scored the highest in each score, indicating that the isolation stick described in Example 1 has a better sense of use.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A spacer rod, characterized in that: The composition comprises the following components in parts by weight: 8.5-66 parts of skin conditioner, 0.2-66.5 parts of emollient, 2.5-21 parts of thickener, and 0.1-1.5 parts of moisturizer; The skin conditioning agent is composed of vinyl dimethicone / polymethylsiloxane silsesquioxane crosspolymer, polymethylsilsesquioxane, cyclopentasiloxane / polydimethicone crosspolymer, polydimethicone / vinyl dimethicone crosspolymer / isododecane and phytosteryl isostearate; The mass ratios of the vinyl dimethicone / polymethylsiloxane silsesquioxane cross-linked polymer, polymethylsilsesquioxane, cyclopentasiloxane / polydimethicone cross-linked polymer, polydimethicone / vinyl dimethicone cross-linked polymer / isododecane, and phytosteryl isostearate are (3.5-10): (5-10): (15-25): (11-20): (0.1-1); The emollient comprises the following components in parts by weight: 10.5-15 parts of isononyl isononanoate, 6.5-10 parts of ethylhexyl palmitate, 4.5-8 parts of phenyl trimethicone, 3.5-10 parts of diisostearyl malate, 0.2-2 parts of caprylic / capric triglyceride, and 0.2-0.5 parts of tridecyl trimellitate; The thickener comprises the following components in parts by weight: 2.5-6 parts of synthetic wax, 2.5-5 parts of microcrystalline wax, and 6.5-10 parts of polyethylene; The moisturizing agent comprises the following components in parts by weight: 0.5-0.8 parts of meadowfoam seed oil, 0.1-0.5 parts of glyceryl behenate, and 0.1-0.2 parts of sodium hyaluronate.

2. The spacer rod according to claim 1, characterized in that: The invention comprises the following components in parts by weight: 40.2-64 parts of skin conditioner, 36.9-66.5 parts of emollient, 11.5-21 parts of thickener and 0.7-1.5 parts of moisturizer.

3. The spacer rod according to claim 1, characterized in that: The mass ratios of the vinyl dimethicone / methylsiloxane silsesquioxane cross-linked polymer, polymethylsilsesquioxane, cyclopentasiloxane / dimethicone cross-linked polymer, dimethicone / vinyl dimethicone cross-linked polymer / isododecane, and phytosteryl isostearate are (5.5-9): (7-9): (16-25): (12.5-20): (0.2-1).

4. The spacer rod according to claim 3, characterized in that: The mass ratio of the vinyl dimethicone / methylsiloxane silsesquioxane cross-linked polymer, polymethylsilsesquioxane, cyclopentasiloxane / dimethicone cross-linked polymer, dimethicone / vinyl dimethicone cross-linked polymer / isododecane, and phytosteryl isostearate is 7:8:20:16:0.

5.

5. The spacer rod according to claim 1, characterized in that: It also includes the following components in parts by weight: 0-0.1 parts of colorant, 0-0.2 parts of fragrance, and 0-0.6 parts of preservative; The colorant is CI 15850; the fragrance is essence; and the preservative is phenoxyethanol.

6. The method for preparing the spacer rod according to claim 5, characterized in that: The following steps are involved: S1, mixing cyclopentasiloxane / polydimethylsiloxane crosspolymer, polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer / isododecane and an emollient in the skin conditioner, and stirring to mix well; S2, adding thickener and heating; S3, cooling, adding vinyl dimethicone / polymethylsiloxane silsesquioxane cross-linked polymer and polymethylsilsesquioxane in the skin conditioning agent, and stirring to mix; S4, cooling, adding phytosteryl isostearate, colorant, fragrance, moisturizer, and preservative in the skin conditioner, and stirring to mix; S5. Heat up and fill cans.

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