Snowflake cream with pearly luster and preparation process thereof

Abstract

The invention discloses snowflake cream with pearly luster and a preparation process of the snowflake cream. The snowflake cream comprises the following raw material components: a phase A: water; butanediol; glycerol; methyl glucitol polyether-20; a polyacrylate cross-linked polymer-6; sodium hyaluronate; potassium hydroxide (90%); 4-hydroxyacetophenone; xanthan gum; phase B: caprylic / capric triglyceride; cetostearyl alcohol; stearic acid; a polydimethylsiloxane; squalane; simmondsia chinensis seed oil; mineral oil; and polyethylene glycol (PEG)-100 stearate. Glyceryl stearate; tocopheryl acetate; isononyl isononanoate; a phase C: 1, 2-hexanediol; carnosine; a centella asiatica extract; collagen; the snowflake cream has the advantages of uniform pearly luster texture and the advantages of traditional snowflake cream.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of cosmetics, and particularly relates to a pearl snow cream and a preparation process thereof. BACKGROUND

[0002] The snow cream is a classic oil-in-water system (O / W), which can quickly disappear on the skin like snowflakes, leaving a clean, smooth and non-greasy skin feel, and an instant "water" feeling, and is suitable for neutral and oily skin.

[0003] The existing snow cream technology still has many challenges in the balance of pearl texture, product stability and skin feel.

[0004] Firstly, the dispersion uniformity of the pearl component is poor, and agglomeration and precipitation phenomena easily occur, resulting in uneven product appearance and affecting visual experience.

[0005] Secondly, the compatibility of some pearl components is poor, which may damage the stability of the emulsion system, resulting in product layering, water separation and other problems.

[0006] Thirdly, when an excessive amount of pearl component is added to ensure the pearl effect, the product skin feel becomes rough and "mud" phenomenon occurs, which violates the core requirement of the snow cream "light, smooth and smooth".

[0007] In addition, the existing technology also has deficiencies in the synergistic adaptation of functional components, pearl components and emulsion systems. The addition of some functional components (such as some active peptides and plant extracts) may affect the pearl effect, or reduce the product efficacy persistence due to poor stability. SUMMARY

[0008] In view of the above technical problems, the present application aims to provide a pearl snow cream and a preparation process thereof.

[0009] The technical solution of the present application is realized as follows:

[0010] A pearl snow cream comprises the following raw material components:

[0011] Phase A:

[0012] Water 60%-70%;

[0013] Butylene glycol 1%-3%;

[0014] Glycerin 4%-6%;

[0015] Methyl gluceth-20 1%-3%;

[0016] Polyacrylate crosspolymer-6 0.1%-1%;

[0017] Sodium hyaluronate 0.01%-0.1%;

[0018] Potassium hydroxide (90%) 0.5%-1.5%;

[0019] p-Hydroxyacetophenone 0.1%-1%;

[0020] Xanthan gum 0.05%-0.5%;

[0021] Phase B:

[0022] Caprylic / capric triglycerides 3%-5%;

[0023] Cetearyl alcohol 1%-3%;

[0024] Stearic acid 4%-6%;

[0025] Polydimethylsiloxane 1%-3%;

[0026] Squalane 2%-4%;

[0027] Jojoba (Simondia chinensis) seed oil: 0.1%-1.5%;

[0028] Mineral oil 1%-3%;

[0029] PEG-100 stearate 0.1%-1%;

[0030] Glyceryl stearate 0.1%-0.5%;

[0031] Tocopheryl acetate 0.1%-0.5%;

[0032] Isononyl isononate 1%-3%;

[0033] Phase C:

[0034] 1,2-Hexanediol 0.1%-1%;

[0035] Carnosine 0.1%-0.5%;

[0036] Centella Asiatica extract 0.1%-0.5%;

[0037] Collagen 0.05%-0.5%.

[0038] A process for preparing a pearlescent snow cream includes the following steps:

[0039] Step 1: Add each component of phase A into a homogenized container while stirring, heat to 80-85℃, stir until dissolved and free of particles, and keep warm for 30 minutes;

[0040] Step 2: Add all raw materials of phase B into another container while stirring, heat to 70-75℃, stir until dissolved and free of particles, and set aside;

[0041] Step 3: Adjust the temperature of phase A to 70-75℃, slowly add phase B to phase A, stir at 45 rpm, then perform rapid homogenization at 3000 rpm for 5 minutes; at the same time, apply vacuum at -0.05mPa to remove bubbles;

[0042] Step 4: After homogenization, the mixture of phase A and phase B begins to cool down at a rate of 0.5℃ / minute and a stirring speed of 30 rpm.

[0043] Step 5: When the temperature drops to 48℃, add the raw materials of phase C in sequence and stir evenly. Then adjust the stirring speed to 25 rpm and continue stirring until the temperature reaches 38℃.

[0044] Step 6: Discharge.

[0045] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0046] This invention produces a pearlescent snow cream through the formulation and composition of its ingredients. The pearlescent effect is formed by the transformation of stearic acid, which has a relatively long carbon chain, from a liquid state to a solid state through cooling. By determining the reaction ratio of potassium hydroxide and fatty acids, the stability of the emulsion system, the spreadability, the amount of pearlescent precipitation in the final product, and the size of the pearlescent particles are ensured. Furthermore, the viscosity of the snow cream is controlled by polyacrylate cross-linked polymer-6, resulting in a snow cream that combines a uniform pearlescent texture, a stable emulsion system, a light and smooth skin feel, and highly effective moisturizing and repairing effects. It not only retains the advantages of traditional snow creams but also has an appearance resembling a snowflake with a pearlescent pattern, featuring a bright and soft texture. Attached Figure Description

[0047] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0048] Figure 1 This is a rendering of the snowflake frost produced in Embodiment 1 of the present invention.

[0049] Figure 2 This is a rendering of the snowflake frost produced in Embodiment 2 of the present invention.

[0050] Figure 3 This is a rendering of the snowflake frost produced in Embodiment 3 of the present invention. Detailed Implementation

[0051] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0052] The present invention will be further described below with reference to the embodiments.

[0053] First, determine the reaction ratio of potassium hydroxide and fatty acids. This ratio affects the overall emulsification effect of the system, including system stability, spreadability, and the amount and size of pearlescent particles in the final product. Potassium hydroxide, as a strong alkali, reacts with fatty acids in what is commonly known as saponification. The resulting potassium stearate is an anionic surfactant and can act as the primary emulsifier in the formulation. To achieve a pearlescent effect in the final product, which is formed from long-chain stearic acid as it solidifies from a liquid state upon cooling, a surplus of stearic acid is necessary to produce potassium stearate. Calculations and comparative analysis indicate that a 60% surplus of added stearic acid is required.

[0054] Excess stearic acid is controlled during cooling by adjusting the viscosity of the material and the stirring speed to control the crystallization effect. The viscosity of the material is controlled by polyacrylate crosslinker-6, which can also increase the viscosity of the material at high temperatures. After emulsification, the viscosity of the material must be ensured to be above 3000 mPa·s to prevent the stearic acid from solidifying too quickly during cooling, thus affecting the precipitation of pearlescent particles. To ensure that the viscosity of the material is above 3000 mPa·s at high temperatures, the addition of polyacrylate crosslinker-6 needs to be controlled to be above 0.4%. Of course, due to the influence of other raw materials and mechanical force, its addition can be increased further, for example, to 0.5%.

[0055] After emulsification, controlling the stirring speed is equally important. If stirring is only halfway done, the material will solidify unevenly as the temperature decreases, resulting in larger but less pearlescent particles. After multiple sampling tests, the stirring speed should be controlled between 25-45 rpm. The specific speed depends on the cooling rate of the entire cooling system. If the cooling rate is faster than 1°C / min, the stirring speed should be slightly higher, at 35-45 rpm. If the cooling rate is slower, the stirring speed should be reduced to 25-35 rpm.

[0056] To make the product more stable, other emulsifiers, such as PEG-100 stearate and glyceryl stearate, were added in actual experiments.

[0057] Based on the above, this invention designs a pearlescent snow cream, comprising the following raw material components:

[0058] Phase A:

[0059] Water 60%-70%;

[0060] Butylene glycol 1%-3%;

[0061] Glycerin 4%-6%;

[0062] Methyl gluceth-20 1%-3%;

[0063] Polyacrylate crosspolymer - 6 0.1%-1%;

[0064] Sodium hyaluronate 0.01%-0.1%;

[0065] Potassium hydroxide (90%) 0.5%-1.5%;

[0066] p-Hydroxyacetophenone 0.1%-1%;

[0067] Xanthan gum 0.05%-0.5%;

[0068] Phase B:

[0069] Caprylic / capric triglycerides 3%-5%;

[0070] Cetearyl alcohol 1%-3%;

[0071] Stearic acid 4%-6%;

[0072] Polydimethylsiloxane 1%-3%;

[0073] Squalane 2%-4%;

[0074] Jojoba (Simondia chinensis) seed oil: 0.1%-1.5%;

[0075] Mineral oil 1%-3%;

[0076] PEG-100 stearate 0.1%-1%;

[0077] Glyceryl stearate 0.1%-0.5%;

[0078] Tocopheryl acetate 0.1%-0.5%;

[0079] Isononyl isononate 1%-3%;

[0080] Phase C:

[0081] 1,2-Hexanediol 0.1%-1%;

[0082] Carnosine 0.1%-0.5%;

[0083] Centella Asiatica extract 0.1%-0.5%;

[0084] Collagen 0.05%-0.5%.

[0085] A process for preparing a pearlescent snow cream includes the following steps:

[0086] Step 1: Add each component of phase A into a homogenized container while stirring, heat to 80-85℃, stir until dissolved and free of particles, and keep warm for 30 minutes;

[0087] Step 2: Add all raw materials of phase B into another container while stirring, heat to 70-75℃, stir until dissolved and free of particles, and set aside;

[0088] Step 3: Adjust the temperature of phase A to 70-75℃, slowly add phase B to phase A, stir at 45 rpm, then perform rapid homogenization at 3000 rpm for 5 minutes; at the same time, apply vacuum at -0.05mPa to remove bubbles;

[0089] Step 4: After homogenization, the mixture of phase A and phase B begins to cool down at a rate of 0.5℃ / minute and a stirring speed of 30 rpm.

[0090] Step 5: When the temperature drops to 48℃, add the raw materials of phase C in sequence and stir evenly. Then adjust the stirring speed to 25 rpm and continue stirring until the temperature reaches 38℃.

[0091] Step 6: Discharge.

[0092] When preparing the snow cream of this formula, the temperature of phase A and phase B must be similar and not too low when mixing, otherwise the emulsification will be incomplete, resulting in a rough cream and wateriness. When adding ingredients, the oil phase must be added to the water phase (for potassium soap systems) and the mixture must be stirred quickly to homogenize and emulsify. The saponification reaction is also formed in this process. The stirring speed and cooling speed directly affect the texture of the cream and the "snowflake feel".

[0093] Calculate the degree of neutralization with stearic acid. Too much or too little will affect emulsion stability.

[0094] The water used in this formula must be deionized or distilled water to prevent metal ions from damaging the emulsion system.

[0095] When the paste is coarse and contains particles, it may be due to insufficient emulsification temperature, inadequate stirring, or excessive cooling. It can be reheated to the homogenization temperature and then re-emulsified.

[0096] When water seepage (demulsification) occurs, it is due to insufficient emulsifier, unbalanced formula, or improper process. The formula and process need to be checked.

[0097] When the cream does not turn white or does not disappear after turning white, the "snowflake effect" is closely related to the oil-to-water ratio, emulsifier type, and amount added in the formula; too much solid oil or wax may affect the spreading and disappearance speed after whitening.

[0098] If the paste becomes thinner or harder after storage: the system is not completely stable and the thickening and emulsification systems need to be optimized.

[0099] The specific implementation examples are as follows:

[0100]

[0101] Examples 1-3 above were all prepared using the following process:

[0102] Step 1: Add each component of phase A into a homogenized container while stirring, heat to 80-85℃, stir until dissolved and free of particles, and keep warm for 30 minutes;

[0103] Step 2: Add all raw materials of phase B into another container while stirring, heat to 70-75℃, stir until dissolved and free of particles, and set aside;

[0104] Step 3: Adjust the temperature of phase A to 70-75℃, slowly add phase B to phase A, stir at 45 rpm, then perform rapid homogenization at 3000 rpm for 5 minutes; at the same time, apply vacuum at -0.05mPa to remove bubbles;

[0105] Step 4: After homogenization, the mixture of phase A and phase B begins to cool down at a rate of 0.5℃ / minute and a stirring speed of 30 rpm.

[0106] Step 5: When the temperature drops to 48℃, add the raw materials of phase C in sequence and stir evenly. Then adjust the stirring speed to 25 rpm and continue stirring until the temperature reaches 38℃.

[0107] Step 6: Discharge.

[0108] The material produced using the formulation and preparation process of Example 1 is as follows: Figure 1 As shown, the pearlescent effect was poor, the material was too fine and not bright enough, and the volume was too thin. This indicates that the proportion of stearic acid to potassium hydroxide saponification reaction was relatively high, which means that the amount of potassium stearate emulsifier generated was relatively high, thus affecting the consistency of the material and the precipitation of pearlescent particles. Therefore, Example 2 was implemented.

[0109] Using the formulation and preparation process of Example 2, the material produced by reducing the amount of potassium hydroxide (90%) is as follows: Figure 2 As shown, the pearlescent effect is average, not delicate enough, and the brightness is average. The consistency of the material is moderate, and the degree of saponification reaction is relatively moderate. However, the material is slightly coarse, which means that the amount of emulsifier is slightly insufficient. Therefore, Example 3 was implemented.

[0110] The formulation and preparation process of Example 3, by increasing the amount of PEG-100 stearate and glyceryl stearate, produced a material as follows: Figure 3 As shown, the material is significantly improved compared to that of Example 1 and Example 2, with good pearlescent effect, moderate particle size, moderate consistency, and relatively stable and delicate texture.

[0111] Based on the above implementation schemes, the scheme of Example 3 was finally selected.

[0112] This invention addresses the deficiencies in the prior art and offers the following advantages: This invention provides a pearlescent snow cream and its preparation process. The pearlescent effect in this formula is formed by the transformation of stearic acid (with a relatively long carbon chain) from a liquid state to a solid state through cooling. By determining the reaction ratio of potassium hydroxide and fatty acids, the stability of the emulsion system, the smoothness of application, the amount of pearlescent precipitation in the final product, and the size of the pearlescent particles are ensured. Furthermore, the viscosity of the snow cream is controlled using polyacrylate crosslinking polymer-6, resulting in a snow cream that combines a uniform pearlescent texture, a stable emulsion system, a light and smooth skin feel, and highly effective moisturizing and repairing effects. It not only retains the advantages of traditional snow creams but also features an appearance resembling a snowflake with a pearlescent pattern, possessing a bright and soft texture.

[0113] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A pearlescent snow cream, characterized in that, It contains the following raw material components: Phase A: Water 60%-70%; Butylene glycol 1%-3%; Glycerin 4%-6%; Methyl gluceth-20 1%-3%; Polyacrylate crosspolymer - 6 0.1%-1%; Sodium hyaluronate 0.01%-0.1%; Potassium hydroxide (90%) 0.5%-1.5%; p-Hydroxyacetophenone 0.1%-1%; Xanthan gum 0.05%-0.5%; Phase B: Caprylic / capric triglycerides 3%-5%; Cetearyl alcohol 1%-3%; Stearic acid 4%-6%; Polydimethylsiloxane 1%-3%; Squalane 2%-4%; Jojoba (Simondia chinensis) seed oil: 0.1%-1.5%; Mineral oil 1%-3%; PEG-100 stearate 0.1%-1%; Glyceryl stearate 0.1%-0.5%; Tocopheryl acetate 0.1%-0.5%; Isononyl isononate 1%-3%; Phase C: 1,2-Hexanediol 0.1%-1%; Carnosine 0.1%-0.5%; Centella Asiatica extract 0.1%-0.5%; Collagen 0.05%-0.5%.

2. A preparation process for a pearlescent snow cream, characterized in that, Includes the following steps: Step 1: Add each component of phase A into a homogenized container while stirring, heat to 80-85℃, stir until dissolved and free of particles, and keep warm for 30 minutes; Step 2: Add all raw materials of phase B into another container while stirring, heat to 70-75℃, stir until dissolved and free of particles, and set aside; Step 3: Adjust the temperature of phase A to 70-75℃, slowly add phase B to phase A, stir at 45 rpm, then perform rapid homogenization at 3000 rpm for 5 minutes; at the same time, apply vacuum at -0.05mPa to remove bubbles; Step 4: After homogenization, the mixture of phase A and phase B begins to cool down at a rate of 0.5℃ / minute and a stirring speed of 30 rpm. Step 5: When the temperature drops to 48℃, add the raw materials of phase C in sequence and stir evenly. Then adjust the stirring speed to 25 rpm and continue stirring until the temperature reaches 38℃. Step 6: Discharge.

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