Stable water-in-lip mud composition and preparation method thereof

Abstract

The invention discloses a stable water-in-lip mud composition and a preparation method thereof, and relates to the technical field of cosmetics. The invention comprises the following components: an elastomer A; a film forming agent; an oil phase component 1; an oil phase component 2; an oil phase component 3; an oil phase component 4; 5 parts of an oil phase component; 6 parts of an oil phase component; water; a pigment; a perfume; a humectant; a preservative; and the elastic body A comprises a primary elastic body and a second type elastic body. According to the surface-activity-free water-containing lip mud provided by the invention, a water bag structure can be realized on the premise of not causing instability of an emulsification system, the structure is good in stability, water separation and deterioration are not easily caused after long-time storage, smooth touch feeling, light smearing and instantaneous water explosion effects can be realized, and the use experience of a user is enhanced; due to the introduction of the VP / hexadecene copolymer, the film-forming uniformity is further improved, and good ductility and water-resistant makeup-holding property are provided; the formula disclosed by the invention can be widely applied to the development of lip mud, lip jelly and pasty makeup products.

Description

TECHNICAL FIELD

[0001] The present application relates to the cosmetic technology field, and in particular to a stable water-containing lip balm composition and a preparation method thereof. BACKGROUND

[0002] Most traditional lip balm products are anhydrous systems, which have thick and heavy texture but are easy to form films and are suitable for long-lasting coloring. However, in the context of increasing consumer demand for skin feel and moisturization, the market has begun to explore water-containing makeup formulations. However, due to the natural incompatibility of water and oil systems, water-containing lip balm often faces the following problems during development: 1. The water phase is unstable and is prone to separation or delamination; 2. Adding a surfactant to stabilize the water phase can cause poor compatibility, many bubbles, and a sticky skin feel; and 3. It cannot provide an ideal "water explosion" skin feel experience when applied.

[0003] Therefore, there is an urgent need for an innovative lip balm composition that can stably contain water without adding traditional surfactants, and can release a cool water sensation when applied, while also having excellent skin feel and stability. Therefore, we propose a stable water-containing lip balm composition and a preparation method thereof to solve the problems mentioned above.

[0004] The above information disclosed in this BACKGROUND section is only for increasing the understanding of the background of the present application, therefore, it can include information that does not constitute prior art that is already known in this field. SUMMARY

[0005] The present application aims to provide a stable water-containing lip balm composition and a preparation method thereof to solve the technical problems of unstable water-containing systems, delamination, and poor skin feel in the prior art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a stable water-containing lip balm composition, comprising the following components:

[0007] Elastomer A;

[0008] Film-forming agent;

[0009] Oil phase component 1;

[0010] Oil phase component 2;

[0011] Oil phase component 3;

[0012] Oil phase component 4;

[0013] Oil phase component 5;

[0014] Oil phase component 6;

[0015] Water;

[0016] Pigment;

[0017] perfume;

[0018] moisturizer;

[0019] preservative;

[0020] said elastomer A comprises a primary elastomer which is dimethicone / dimethicone crosspolymer and a secondary elastomer which is vinyl dimethicone / methicone silsesquioxane crosspolymer, said film former is VP / Hexadecene Copolymer.

[0021] Preferably, said oil phase ingredient 1 is octyldodecanol, which gives a smooth skin feel, improves spreadability, and adjusts viscosity; oil phase ingredient 2 is polyhydroxystearic acid, which stabilizes the dispersion system and improves pigment uniformity; oil phase ingredient 3 is isododecane, which is a volatile light oil, improves spreadability, and improves the use skin feel; oil phase ingredient 4 is trimethylsiloxysilicate, which is a film forming enhancer, improves makeup staying power and water resistance; oil phase ingredient 5 is polyglyceryl-2 triisostearate, which is a non-ionic emulsifier, helps to form a stable emulsion structure; oil phase ingredient 6 is SeraSense SF 6, which improves product smoothness and spreadability, and gives a silky skin feel.

[0022] Preferably, the mass percentage of said components is as follows:

[0023] elastomer A 37.50%;

[0024] film former 0.60%;

[0025] oil phase ingredient 1 5.00%;

[0026] oil phase ingredient 2 0.40%;

[0027] oil phase ingredient 3 5.00%;

[0028] oil phase ingredient 4 3.00%;

[0029] oil phase ingredient 5 5.80%;

[0030] oil phase ingredient 2 7.80%;

[0031] water 25.00%;

[0032] pigment 3.00%;

[0033] moisturizer 6.50%;

[0034] preservative 0.40%.

[0035] Preferably, said moisturizer is 1,3-glycerol hydrolysate.

[0036] Preferably, said preservative is phenoxyethanol.

[0037] The present application also provides a method for preparing the stable water-in-lip balm composition, comprising the following steps:

[0038] Step 1. Mix the primary elastomer with the oil phase base, stir to form a main matrix;

[0039] Step 2. Add the water phase, i.e. water and humectants, in batches, and shear at low speed in a high-speed homogenizer for 5 minutes, so that the water is preliminarily absorbed by the primary elastomer;

[0040] Step 3. Add the second elastomer to build a secondary wrapping structure;

[0041] Step 4. Add the VP / hexadecene copolymer, pigments and fragrances, stir slowly and uniformly, and fill after standing and defoaming.

[0042] Compared with the prior art, the present application has the following beneficial effects:

[0043] The water-in-lip balm without surface activity provided by the present application can realize the water-in structure without causing instability of the emulsified system, and has good stability, is not easy to separate water and deteriorate for a long time, can realize smooth touch, light application and instantaneous water explosion effect, and enhances the user experience; the introduction of the VP / hexadecene copolymer further improves the film forming uniformity, provides good extensibility and water resistance, and the formula of the present application can be widely used in the development of lip balm, lip gloss and paste-like cosmetic products.

[0044] The above summary is only for the purpose of the description and is not intended to limit in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features will be readily apparent to those skilled in the art by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 The present application is prepared as shown in the schematic diagram. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be described clearly and completely below by reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0047] Example 1

[0048] Prepare the following components:

[0049] Elastomer A: primary elastomer and secondary elastomer 37.50%;

[0050] Film former: VP / hexadecene copolymer 0.60%;

[0051] Octyldodecanol 5.00%;

[0052] Polyhydroxystearic acid 0.40%;

[0053] Isododecane 5.00%;

[0054] Trimethylsiloxysilicate 3.00%;

[0055] Polyglyceryl-2 triisostearate 5.80%;

[0056] SeraSense SF 6 7.80%;

[0057] Water 25.00%;

[0058] Pigment 3.00%;

[0059] Fragrance trace (not counted in percentage);

[0060] Moisturizer: 1,3-glycerol hydrolysate 6.50%;

[0061] Preservative: phenoxyethanol 0.40%.

[0062] The preparation method is as follows:

[0063] Step 1. Mix the primary elastomer with oil phase ingredients 1-6 and preservative, stir evenly to form the main matrix;

[0064] Step 2. Add water and moisturizer in batches, and shear at low speed in a high-speed homogenizer for 5 minutes, so that the water is preliminarily absorbed by the primary elastomer;

[0065] Step 3. Add the second type of elastomer to build a secondary wrapping structure;

[0066] Step 4. Add VP / hexadecene copolymer, pigment and fragrance, stir slowly and evenly, and then fill after standing and defoaming.

[0067] The structure of the prepared composition is as follows:

[0068] 1. First layer of water wrapping: dimethicone / polydimethylsiloxane crosslinked polymer forms a primary three-dimensional silicon network structure, wrapping the water phase to form a stable gel;

[0069] 2. Second layer of stable layer: adding vinyl polydimethylsiloxane / polymethylsilsesquioxane crosslinked polymer, further wrapping the first layer of aqueous gel in the outer layer, forming a "core-shell" type stable structure;

[0070] 3. The auxiliary component VP / hexadecene copolymer as an oil phase dispersion stabilizer has excellent sweat and water resistance and soft film forming property, and can improve product uniformity and makeup holding force;

[0071] 4. After the structure is formed, water can be released instantaneously under low shear or pressure, bringing a water explosion feeling;

[0072] 5. The composition as a whole is a non-skin active W / S structure, avoiding skin irritation.

[0073] To further verify the technical effects and superiorities of the formula of the present application, the following six groups of control formulas are designed to simulate the traditional lip mud, remove the key components, adjust the proportion of the key components, and the like, so as to compare and analyze the core structure and formula rationality of the present application.

[0074] Control group 1

[0075] The difference between control group 1 and example 1 is that the elastomer A is replaced by a silicone elastomer, and the moisture and humectant components are removed.

[0076] Control group 2

[0077] The difference between control group 2 and example 1 is that the film forming agent VP / hexadecene copolymer is removed.

[0078] Control group 3

[0079] The difference between control group 3 and example 1 is that the elastomer A is replaced by a different kind of silicone elastomer.

[0080] Control group 4

[0081] The difference between control group 4 and example 1 is that the content of elastomer A is reduced to 20%.

[0082] Control group 5

[0083] The difference between control group 5 and example 1 is that the content of elastomer A is increased to 50%.

[0084] Control group 6

[0085] The difference between control group 6 and example 1 is that the content of film forming agent VP / hexadecene copolymer is reduced to 0.2% or increased to 1.5%.

[0086]

[0087] To further verify the performance differences of the control groups and the sample of the present application in actual application, the following two key indicators are used for evaluation:

[0088] 1. Stability evaluation: the sample is placed in accelerated aging at 45 DEG C for 30 days, and whether delamination, water separation, hardening and other phenomena occur is observed as an important basis for judging the structural stability thereof;

[0089] 2. Human use feeling evaluation: 20 volunteers are invited to use the samples in each group respectively, and subjective scoring (water explosion feeling, refreshing degree, and uniformity of application) is used to score, the score is expressed in percentage, and the final result is the average value.

[0090] The experimental results are shown in the following table.

[0091]

[0092] The results show that the sample of the embodiment 1 of the present application performs best in the two indicators, especially in the water release and skin feeling, which is far superior to the traditional water-free formula and other variant combinations. The double-layer silicon structure adopted in the present application realizes the stability of the water phase under the condition of no surfactant; the addition of the film-forming agent VP / hexadecene copolymer can improve the film-forming uniformity and ductility; and the skin feeling, water explosion experience and stability are all significantly better than those of the control sample, which has high industrial application value and technical progressiveness.

[0093] The embodiments of the present application are given for the purpose of illustration and description, although the embodiments of the present application have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and modifications to the above-mentioned embodiments within the scope of the present application, which should be included in the protection scope of the present application.

Claims

1. A stable water-retaining lip clay composition, characterized in that, It includes the following components: Elastomer A; Film-forming agent; Oil phase component 1; Oil phase component 2; Oil phase component 3; Oil phase component 4; Oil phase component 5; Oil phase component 6; water; pigment; spices; Moisturizer; preservative; The elastomer A includes a primary elastomer and a second type of elastomer. The primary elastomer is a polydimethylsiloxane / polydimethylsiloxane crosslinked polymer, and the second type of elastomer is a vinyl polydimethylsiloxane / polymethylsiloxane silsesquioxane crosslinked polymer. The film-forming agent is a VP / hexadecene copolymer.

2. The stable water-encapsulating lip clay composition according to claim 1, characterized in that: The oil phase component 1 is octyl dodecanol, the oil phase component 2 is polyhydroxystearic acid, the oil phase component 3 is isododecane, the oil phase component 4 is trimethylsiloxysilicate, the oil phase component 5 is polyglycerol-2-triisostearate, and the oil phase component 6 is SeraSense SF 6.

3. The stable water-encapsulating lip clay composition according to claim 1, characterized in that: The mass percentages of the components are as follows: Elastomer A: 37.50%; Film-forming agent 0.60%; Oil phase component 1 5.00%; Oil phase component 2 0.40%; Oil phase component 3 5.00%; Oil phase component 4 3.00%; Oil phase component 5 5.80%; Oil phase component 2 7.80%; Water 25.00%; Pigment 3.00%; Moisturizer content: 6.50%; Preservative 0.40%.

4. The stable water-encapsulating lip clay composition according to claim 1, characterized in that: The humectant is a hydrolysate of 1,3-glycerol.

5. The stable water-encapsulating lip clay composition according to claim 1, characterized in that: The preservative is phenoxyethanol.

6. A method for preparing a stable water-encapsulating lip paste composition according to any one of claims 1-5, characterized in that, Includes the following steps: Step 1. Mix the primary elastomer and the oil phase substrate, and stir until homogeneous to form the main matrix; Step 2. Add the aqueous phase, i.e., water and humectant, in batches, and shear at low speed for 5 minutes in a high-speed homogenizer to allow the water to be initially adsorbed by the primary elastomer. Step 3. Add a second type of elastomer to construct a secondary encapsulation structure; Step 4. Add VP / hexadecene copolymer, pigment and fragrance, stir slowly until uniform, let stand to degas and then fill.

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