Flexible oil bead composition as well as preparation method and application thereof

Abstract

The invention provides a flexible oil bead composition as well as a preparation method and application thereof, and the flexible oil bead composition comprises the following components in parts by weight: 1-5 parts of a first component and 95-99 parts of a second component, the first component comprises bismuth oxychloride; the second component is prepared from hydrogenated polyolefin, a polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer and an HDI (Hexamethylene Diisocyanate) / trihydroxymethyl hexyl lactone cross-linked polymer. The flexible oil bead composition can effectively brighten the skin color and improve the skin texture, so that the skin is finer and smoother, has good stability and is not easy to break.

Description

Technical Field

[0001] The invention belongs to the technical field of skin care products, and in particular relates to a flexible oil bead composition and a preparation method and application thereof. Background Art

[0002] Skin care products are a type of product with multiple functions that are produced based on various skin problems and needs, including toners, lotions, essences, face creams, eye creams, etc.; they can be used as needed according to different problems in different parts of the body. With the improvement of living standards, people are paying more and more attention to the pursuit of beauty; however, in daily life and work, due to various reasons such as sun exposure, environmental pollution, irregular work and rest, endocrine disorders, etc., various skin problems often occur, among which dull skin is a more common skin problem. Therefore, alleviating dull skin, brightening skin tone, making the skin look brighter, and having better transparency and luster is one of the important functions of skin care products.

[0003] Currently, there are many ways to brighten skin tone, including physical masking, such as adding titanium dioxide and iron oxide series colorants into the formula to cover up the skin and brighten the skin tone; however, the brightening effect is short-lived, does not substantially improve the skin condition, and is prone to produce a "fake white" visual effect.

[0004] Oil bead products, due to their unique encapsulation and sustained-release properties, can significantly improve the skin feel and effect of skin care products, and have a beautiful appearance, so they are widely used. However, oil bead products have poor stability, and the oil beads are easily broken, which can easily affect the skin care effect. In addition, the skin lightening effect of existing oil bead products needs to be further improved.

[0005] Therefore, developing an oil bead product that can effectively brighten skin tone, improve dullness, enhance skin feel and glossiness, make the skin smoother and more delicate and has good stability is an urgent problem to be solved in the field. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention aims to provide a flexible oil bead composition and its preparation method and application. The flexible oil bead composition can effectively brighten the skin tone, improve the skin texture, make the skin more delicate and smooth, and have good stability and is not easy to break.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] In a first aspect, the present invention provides a flexible oil bead composition, which comprises, by weight, 1 to 5 parts of a first component and 95 to 99 parts of a second component; the first component comprises bismuth oxychloride; the second component comprises hydrogenated polyolefin, polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer and HDI / trimethylol hexyllactone crosspolymer.

[0009] In the present invention, the bismuth oxychloride can effectively brighten the skin tone and improve the skin texture; the polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer has excellent smoothness and stability, and can improve the stickiness caused by hydrogenated polyolefin; the HDI / trimethylol hexyl lactone cross-linked polymer has anti-blocking and anti-coagulation properties, and can prevent the hydrogenated polyolefin from forming continuous blocks, so that the composition can form an oil droplet state in the medium, thereby improving the stability of the oil droplets; the first component is used as the pearlescent paste, and the second component is used as the oil phase. By compounding the components, the obtained oil droplet composition can not only effectively brighten the skin tone, but also improve the skin feel and glossiness; and the oil droplets are not easy to break and have good stability.

[0010] In the present invention, 1 to 5 parts of the first component can be, for example, 1 part, 1.2 parts, 1.5 parts, 1.8 parts, 2 parts, 2.2 parts, 2.5 parts, 2.8 parts, 3 parts, 3.5 parts, 4 parts, 4.5 parts, 5 parts, etc.

[0011] In the present invention, 95 to 99 parts of the second component can be, for example, 95 parts, 95.2 parts, 95.4 parts, 95.6 parts, 95.8 parts, 96 parts, 96.2 parts, 96.4 parts, 96.8 parts, 97 parts, 97.2 parts, 97.4 parts, 97.6 parts, 97.8 parts, 98 parts, 98.2 parts, 98.4 parts, 98.6 parts, 98.8 parts, 99 parts, etc.

[0012] Preferably, the first component further comprises a first ester compound.

[0013] Preferably, in parts by weight, the first component includes 0.7 to 2.5 parts of bismuth oxychloride (for example, 0.75 parts, 0.78 parts, 0.8 parts, 1 parts, 1.2 parts, 1.5 parts, 1.8 parts, 2 parts, 2.2 parts, 2.5 parts, etc.) and 0.3 to 2.5 parts of a first ester compound (for example, 0.32 parts, 0.35 parts, 0.4 parts, 0.5 parts, 0.6 parts, 0.8 parts, 1 parts, 1.2 parts, 1.5 parts, 1.8 parts, 2 parts, 2.2 parts, 2.5 parts, etc.).

[0014] Preferably, the first ester compound includes at least one of ethylhexyl hydroxystearate, dipentaerythritol hexahydroxystearate, hydroxystearic acid or polyhydroxystearic acid.

[0015] Preferably, the second component comprises, by weight, 15 to 45 parts of hydrogenated polyolefin, 5 to 15 parts of polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer and 5 to 25 parts of HDI / trimethylol hexyl lactone crosspolymer.

[0016] In the present invention, 15 to 45 parts of hydrogenated polyolefin can be, for example, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts, 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts, 26 parts, 27 parts, 28 parts, 29 parts, 30 parts, 31 parts, 32 parts, 33 parts, 34 parts, 35 parts, 36 parts, 37 parts, 38 parts, 39 parts, 40 parts, 41 parts, 42 parts, 43 parts, 44 parts, 45 parts, etc.

[0017] In the present invention, 5 to 15 parts of dimethicone / vinyl dimethicone crosslinked polymer can be, for example, 5 parts, 5.2 parts, 5.4 parts, 5.6 parts, 5.8 parts, 6 parts, 6.2 parts, 6.4 parts, 6.6 parts, 6.8 parts, 7 parts, 7.2 parts, 7.4 parts, 7.6 parts, 7.8 parts, 8 parts, 8.2 parts, 8.4 parts, 8.6 parts, 8.8 parts, 9 parts, 9.2 parts, 9.4 parts, 9.6 parts, 9.8 parts, 10 parts, 10.2 parts, 10.4 parts, 10.6 parts, 10.8 parts, 11 parts, 11.2 parts, 11.4 parts, 11.6 parts, 11.8 parts, 12 parts, 12.2 parts, 12.4 parts, 12.6 parts, 12.8 parts, 13 parts, 13.2 parts, 13.4 parts, 13.6 parts, 13.8 parts, 14 parts, 14.2 parts, 14.4 parts, 14.6 parts, 14.8 parts, 15 parts, etc.

[0018] In the present invention, 5 to 25 parts of HDI / trimethylol hexyl lactone crosslinked polymer can be, for example, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts, 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts, etc.

[0019] Preferably, the hydrogenated polyolefin comprises hydrogenated poly(C6-C20 olefin).

[0020] In the present invention, the hydrogenated poly (C6-C20 olefin) includes hydrogenated poly (C9 olefin).

[0021] Preferably, the number average molecular weight of the polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer is 20,000-40,000, for example, 20,000, 22,000, 24,000, 26,000, 28,000, 30,000, 32,000, 34,000, 36,000, 38,000, 40,000, etc.

[0022] Preferably, the number average molecular weight of the HDI / trimethylol hexyl lactone crosslinked polymer is 10,000 to 20,000 Daltons, for example, 10,000, 11,000, 12,000, 13,000, 14,000, 15,000, 16,000, 17,000, 18,000, 19,000, 20,000, etc.

[0023] Preferably, the second component further comprises 0.01 to 40 parts of a second oil ester compound, for example, 0.01, 0.1, 0.5, 0.6, 0.8, 1, 1.2, 1.5, 1.8, 2, 2.2, 2.5, 2.8, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5 , 8, 8.5, 9, 9.5, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, etc.

[0024] Preferably, the second oil ester compound includes ethylhexyl palmitate and / or caprylic / capric triglyceride.

[0025] Preferably, the second oil ester compound comprises a combination of ethylhexyl palmitate and caprylic / capric triglyceride, and the mass ratio of ethylhexyl palmitate to caprylic / capric triglyceride is 1:(0.01-20), wherein the specific value in (0.01-20) can be, for example, 0.01, 0.02, 0.04, 0.06, 0.08, 0.1, 0.2, 0.4, 0.6, 0.8, 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, etc.; further preferably, it is 1:(0.5-10).

[0026] In a second aspect, the present invention provides a method for preparing the flexible oil bead composition according to the first aspect, the preparation method comprising:

[0027] The first component and the second component are mixed to obtain the flexible oil bead composition.

[0028] Preferably, the mixing temperature is 60-70°C, for example, 60°C, 62°C, 64°C, 66°C, 68°C, 70°C, etc.

[0029] Preferably, the preparation method of the first component comprises: mixing bismuth oxychloride with an optional first ester compound to obtain the first component.

[0030] Preferably, the temperature at which the bismuth oxychloride and the optional first ester compound are mixed is 40-80°C, for example, 40°C, 45°C, 50°C, 55°C, 60°C, 65°C, 70°C, 75°C, 80°C, etc.

[0031] Preferably, the preparation method of the second component comprises: mixing hydrogenated polyolefin, polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer, HDI / trimethylol hexyl lactone crosspolymer and an optional second oil ester compound to obtain the second component.

[0032] Preferably, the temperature for mixing the hydrogenated polyolefin, dimethicone / vinyl dimethicone crosspolymer, HDI / trimethylol hexyllactone crosspolymer and the optional second oil ester compound is 70-80°C, for example, 70°C, 72°C, 74°C, 76°C, 78°C, 80°C, etc.; the time is 20-60 min, for example, 20 min, 25 min, 30 min, 35 min, 40 min, 45 min, 50 min, 55 min, 60 min, etc.

[0033] In a third aspect, the present invention provides a skin care product, comprising the flexible oil bead composition according to the first aspect.

[0034] In the present invention, the skin care products include but are not limited to essence.

[0035] The numerical range described in the present invention not only includes the point values ​​listed above, but also includes any point values ​​between the above numerical ranges that are not listed. Due to space limitations and for the sake of simplicity, the present invention no longer exhaustively lists the specific point values ​​included in the range.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] The flexible oil droplet composition provided by the present invention is compounded with bismuth oxychloride, hydrogenated polyolefin, polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer and HDI / trimethylol hexyl lactone cross-linked polymer, so that the oil droplet composition can not only instantly brighten the skin tone, but also improve the skin feel and glossiness; and the oil droplets will not be broken due to excessively fast stirring speed or canning, and the stability is good. DETAILED DESCRIPTION

[0038] The technical solution of the present invention is further described below by specific implementation methods. It should be understood by those skilled in the art that the embodiments are only to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0039] The materials used in the present invention can be purchased from the market or prepared by conventional methods. Unless otherwise specified, the materials used in the present invention are as follows:

[0040] Hydrogenated poly (C6-20 olefin): Hubei Guangao Biotechnology Co., Ltd., CAS No. 69430-35-9.

[0041] Dimethicone / vinyl dimethicone crosspolymer: Hunan Siluoke Silicone Co., Ltd. sicare 9909.

[0042] HDI / trimethylol hexyl lactone cross-linked polymer: Beijing Lingbao Technology Co., Ltd.

[0043] Example 1

[0044] This embodiment provides a flexible oil bead composition, which includes, by weight, 1 part of bismuth oxychloride, 1 part of ethylhexyl hydroxystearate, 10 parts of ethylhexyl palmitate, 20 parts of caprylic / capric triglyceride, 40 parts of hydrogenated poly (C6-20 olefin), 8 parts of polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer and 20 parts of HDI / trimethylol hexyl lactone crosspolymer.

[0045] This embodiment provides a method for preparing a flexible oil bead composition, which specifically comprises the following steps:

[0046] (1) bismuth oxychloride and ethylhexyl hydroxystearate are mixed and heated to form bismuth oxychloride-ethylhexyl hydroxystearate pearlescent paste; ethylhexyl palmitate, caprylic / capric triglyceride, hydrogenated poly (C6-20 olefin), polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer, and HDI / trimethylol hexyl lactone crosspolymer are mixed, heated to 75° C., and kept warm for 40 minutes to form an oil phase;

[0047] (2) The pearlescent paste and the oil phase are mixed uniformly at 65° C. to obtain the flexible oil bead composition.

[0048] Example 2

[0049] This embodiment provides a flexible oil bead composition, which includes, by weight, 2 parts of bismuth oxychloride, 2.5 parts of ethylhexyl hydroxystearate, 7 parts of ethylhexyl palmitate, 19 parts of caprylic / capric triglyceride, 36 parts of hydrogenated poly (C6-20 olefin), 16.5 parts of polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer and 17 parts of HDI / trimethylol hexyl lactone crosspolymer.

[0050] This embodiment provides a method for preparing a flexible oil bead composition, and the specific steps are the same as those in Embodiment 1.

[0051] Example 3

[0052] This embodiment provides a flexible oil bead composition, which includes, by weight, 2.5 parts of bismuth oxychloride, 0.5 parts of hydroxystearic acid, 14 parts of ethylhexyl palmitate, 16 parts of caprylic / capric triglyceride, 30 parts of hydrogenated poly (C6-20 olefin), 12 parts of polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer and 25 parts of HDI / trimethylol hexyl lactone crosspolymer.

[0053] This embodiment provides a method for preparing a flexible oil bead composition, and the specific steps are the same as those in Embodiment 1.

[0054] Example 4

[0055] This embodiment provides a flexible oil bead composition, which differs from Example 1 only in that it includes 60 parts of hydrogenated poly (C6-20 olefin), 4 parts of polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer and 4 parts of HDI / trimethylol hexyllactone cross-linked polymer, and the other components, amounts and preparation methods are the same as those in Example 1.

[0056] Example 5

[0057] This embodiment provides a flexible oil bead composition, which differs from Example 1 only in that it includes 10 parts of hydrogenated poly (C6-20 olefin), 28 parts of polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer and 30 parts of HDI / trimethylol hexyllactone cross-linked polymer, and the other components, amounts and preparation methods are the same as those in Example 1.

[0058] Example 6

[0059] This embodiment provides a flexible oil bead composition, which differs from Embodiment 1 only in that the hydrogenated poly (C6-20 olefin) is replaced by polyisobutylene of equal mass, and the other components, amounts and preparation methods are the same as those in Embodiment 1.

[0060] Example 7

[0061] This example provides a flexible oil bead composition, which differs from Example 1 only in that the total mass of ethylhexyl palmitate and caprylic / capric triglyceride remains unchanged, with a mass ratio of 1:15, and the other components, amounts and preparation methods are the same as those in Example 1.

[0062] Example 8

[0063] This example provides a flexible oil bead composition, which differs from Example 1 only in that the total mass of ethylhexyl palmitate and caprylic / capric triglyceride remains unchanged, with a mass ratio of 1:0.4, and the other components, amounts and preparation methods are the same as those in Example 1.

[0064] Comparative Example 1

[0065] This comparative example provides a flexible oil bead composition, which differs from Example 1 only in that the total mass of the hydrogenated poly (C6-20 olefin), polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer and HDI / trimethylol hexyl lactone crosspolymer remains unchanged, the mass ratio of hydrogenated poly (C6-20 olefin) to polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer remains unchanged, there is no HDI / trimethylol hexyl lactone crosspolymer, and the other components, amounts and preparation methods are the same as those in Example 1.

[0066] Comparative Example 2

[0067] This comparative example provides a flexible oil bead composition, which differs from Example 1 only in that the total mass of the hydrogenated poly (C6-20 olefin), polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer and HDI / trimethylol hexyl lactone crosspolymer remains unchanged, the mass ratio of hydrogenated poly (C6-20 olefin) to HDI / trimethylol hexyl lactone crosspolymer remains unchanged, there is no polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer, and the other components, amounts and preparation methods are the same as those in Example 1.

[0068] Comparative Example 3

[0069] This comparative example provides a flexible oil bead composition, which differs from Example 1 only in that the polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer is replaced with an equal mass of vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane cross-linked polymer, and the other components, amounts and preparation methods are the same as those in Example 1.

[0070] Comparative Example 4

[0071] This comparative example provides a flexible oil bead composition, which differs from Example 1 only in that it includes 4 parts of bismuth oxychloride and 4 parts of ethylhexyl hydroxystearate, and the other components, amounts and preparation methods are the same as those in Example 1.

[0072] Application Examples

[0073] This application example provides an essence, which includes the flexible oil bead composition provided in Examples 1 to 8 and Comparative Examples 1 to 4.

[0074] Performance Testing

[0075] (1) Brightening skin tone: 30 volunteers with dull skin aged between 25 and 45 were randomly selected. The subjects were asked to apply the essence provided by the present invention after cleaning their faces. After waiting for 30 minutes, the skin color was detected using a skin color measuring instrument ColorimeterCL400. The L* value was recorded, and the L* value change before and after use was calculated as ΔL = L* after use - L* before use. The average value of the 30 volunteers was taken.

[0076] (2) Stability: The obtained essence was centrifuged at 3000 rpm for 30 min, and the state of the essence and the breakage of the oil droplets were observed. If no obvious changes occurred, it was marked as qualified.

[0077] Marked as poor.

[0078] The specific test results are shown in Table 1:

[0079] Table 1

[0080] ΔL stability Example 1 3.8 qualified Example 2 4.1 qualified Example 3 4.3 qualified Example 4 3.2 qualified Example 5 3.4 qualified Example 6 3.0 qualified Example 7 3.5 qualified Example 8 3.3 qualified Comparative Example 1 2.8 Failure Comparative Example 2 2.6 Failure Comparative Example 3 2.9 qualified Comparative Example 4 3.9 Failure

[0081] As can be seen from Table 1, the flexible oil droplet composition provided by the present invention is compounded with bismuth oxychloride, hydrogenated polyolefin, polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer and HDI / trimethylol hexyl lactone cross-linked polymer in specific contents, so that the oil droplet composition can instantly brighten the skin tone, improve skin feel and glossiness; and the oil droplets are not easy to break and have good stability.

[0082] The applicant declares that the above is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention shall fall within the protection scope and disclosure scope of the present invention.

Claims

1. A flexible oil bead composition, characterized in that: The flexible oil bead composition comprises, by weight, 1 to 5 parts of a first component and 95 to 99 parts of a second component; The first component includes bismuth oxychloride; The second component includes hydrogenated polyolefin, dimethicone / vinyl dimethicone crosspolymer, and HDI / trimethylol hexyllactone crosspolymer.

2. The flexible oil bead composition according to claim 1, characterized in that: The first component also includes a first ester compound; Preferably, the first component comprises, by weight, 0.7 to 2.5 parts of bismuth oxychloride and 0.3 to 2.5 parts of a first ester compound; Preferably, the first ester compound includes at least one of ethylhexyl hydroxystearate, dipentaerythritol hexahydroxystearate, hydroxystearic acid or polyhydroxystearic acid.

3. The flexible oil bead composition according to claim 1 or 2, characterized in that: The second component comprises, by weight, 15 to 45 parts of hydrogenated polyolefin, 5 to 15 parts of polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer and 5 to 25 parts of HDI / trimethylol hexyl lactone crosspolymer.

4. The flexible oil bead composition according to any one of claims 1 to 3, characterized in that: The hydrogenated polyolefin includes hydrogenated poly(C6-C20 olefin).

5. The flexible oil bead composition according to any one of claims 1 to 4, characterized in that: The number average molecular weight of the polydimethylsiloxane / vinyl polydimethylsiloxane cross-linked polymer is 20,000 to 40,000; Preferably, the number average molecular weight of the HDI / trimethylol hexyl lactone cross-linked polymer is 10,000 to 20,000 Daltons.

6. The flexible oil bead composition according to any one of claims 1 to 5, characterized in that: The second component further comprises 0.01 to 40 parts by weight of a second oil ester compound; Preferably, the second oil ester compound comprises ethylhexyl palmitate and / or caprylic / capric triglyceride; Preferably, the second oil ester compound comprises a combination of ethylhexyl palmitate and caprylic / capric triglyceride, and the mass ratio of ethylhexyl palmitate to caprylic / capric triglyceride is 1:(0.01-20), and more preferably 1:(0.5-10).

7. A method for preparing the flexible oil bead composition according to any one of claims 1 to 6, characterized in that: The preparation method comprises: The first component and the second component are mixed to obtain the flexible oil bead composition.

8. The preparation method according to claim 7, characterized in that: The mixing temperature is 60-70°C.

9. The preparation method according to claim 7 or 8, characterized in that: The preparation method of the first component comprises: mixing bismuth oxychloride and an optional first ester compound to obtain the first component; Preferably, the temperature at which the bismuth oxychloride and the optional first ester compound are mixed is 40 to 60° C.; Preferably, the preparation method of the second component comprises: mixing hydrogenated polyolefin, polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer, HDI / trimethylol hexyl lactone crosspolymer and an optional second oil ester compound to obtain the second component; Preferably, the hydrogenated polyolefin, the polydimethylsiloxane / vinyl polydimethylsiloxane crosspolymer, the HDI / trimethylol hexyl lactone crosspolymer and the optional second oil ester compound are mixed at a temperature of 70 to 80° C. for 20 to 60 minutes.

10. A skin care product, characterized in that: The skin care product comprises the flexible oil bead composition according to any one of claims 1 to 6.