Garland multicolor moisturizer and preparation method thereof

Abstract

The invention provides a garland multicolor moisturizer and a preparation method thereof, and belongs to the field of cosmetics or similar dressing preparations. The phase body at least comprises two independent phase bodies; the first phase body is water-phase gel and comprises the following components: glycerol, xanthan gum, carbomer, trehalose, triethanolamine and water; the second phase body is oil phase gel; comprising the following components: polydimethylsiloxane, hydrogenated polyisobutene, wax, lecithin, a water-in-oil emulsifier, polyethylene, cyclopentasiloxane and dicapryl carbonate. The moisturizing cream comprises at least two moisturizing cream phase bodies which can be stably stored in the same packaging material at the same time, and different phase bodies have different colors, do not cross colors when being stored in a container, and can be kept stable mutually; and each phase body contains different active ingredients, and the active ingredients play a role in skin care after the components are mixed into a uniform shape by a consumer during use.

Description

Technical Field

[0001] This invention relates to the field of cosmetics or similar grooming products, and more particularly to a multi-colored, patterned moisturizing cream and its preparation method. Background Technology

[0002] With socio-economic development and improved living standards, consumers' demands for cosmetics have gradually expanded from basic skincare functions to a comprehensive pursuit of diversified product efficacy, personalized user experience, and artistic visual appearance. In the skincare market, especially for moisturizing creams, as an important part of daily skincare, technological development not only focuses on enhancing and coordinating active ingredients but also increasingly emphasizes innovation in product form and appearance design to improve user experience, attract consumers, and strengthen brand recognition.

[0003] Traditional moisturizing creams, regardless of their claimed efficacy, are mostly presented in a single color, with a homogeneous paste or cream texture. While this design is classic, in an increasingly competitive market with highly homogenized products, it struggles to immediately capture consumers' attention, let alone satisfy the desire of younger consumers for novelty, uniqueness, and a sense of sharing. Therefore, some products have begun to seek breakthroughs in visual appearance, such as incorporating two or more different colored creams into the same packaging to create artistic designs like stripes, swirls, or marble patterns. These products stand out on the shelf through their unique visual appeal, giving skincare products more emotional value and decorative attributes, aligning with the current "appearance economy" consumption trend.

[0004] However, in the process of realizing and promoting such multi-color, multi-phase moisturizing cream products, existing technologies have revealed a series of technical problems and limitations that urgently need to be solved, mainly focusing on three aspects: product stability, efficacy synergy, and production feasibility. 1. The design is implemented in a limited way and suffers from physical isolation defects. Currently, common technologies for achieving multi-color coexistence in the market mainly rely on the physical separation design of packaging containers. For example, using dual-chamber or multi-chamber tubes or bottles, different colored pastes are filled into independent chambers, and then extruded side by side through a specific pump head or outlet structure, thus creating a visually multi-color effect. While this method solves the problem of pre-mixing colors to some extent, its disadvantages are quite obvious: it greatly increases the complexity of the packaging structure and manufacturing costs. Multi-chamber designs require precision molds and filling equipment, resulting in cumbersome production processes, low filling efficiency, and higher requirements for the sealing and strength of packaging materials, which can easily lead to a decrease in yield and an increase in costs. Furthermore, physical separation methods strictly limit the freedom of product appearance design. Pastes can only be presented in fixed stripe or block forms, making it difficult to achieve more natural, smooth, and artistic complex patterns such as lace or swirls. More importantly, once removed from the packaging, the different colored pastes quickly separate, making it difficult for consumers to reproduce the original exquisite visual form of the product inside the container during actual use and application, thus greatly diminishing the value of appearance innovation. Such packaging often faces the problem of uneven paste residue. When the paste in one chamber is used up, there may still be some left in another chamber, resulting in product waste and a decline in consumer experience.

[0005] 2. Multiphase systems lack stability and are prone to color bleeding and textural degradation. To avoid complex packaging, some technologies attempt to place two or more different colored pastes together in a single-chamber container, hoping to form a stable multiphase coexistence system. However, this faces extremely severe technical challenges, the core of which lies in the physicochemical stability between the different colored pastes.

[0006] Moisturizing creams are typically complex emulsion systems containing numerous components such as an aqueous phase, an oil phase, emulsifiers, thickeners, active ingredients, and pigments. When two or more colored creams come into contact, due to interfacial tension and differences in density, rheology, and especially in the composition of the various phases, various substance migration phenomena can easily occur. Pigment migration: This is the most obvious problem. Pigments added to different phases may cross the phase interface due to differences in solubility, molecular diffusion, or migration with the continuous phase, causing color mixing and contamination. This blurs and muddies the originally clear and bright color boundaries, ultimately resulting in a uniform color throughout the product or the formation of unsightly color spots, completely losing the aesthetic value of a multi-colored appearance. This color bleeding phenomenon accelerates during storage, especially under conditions of temperature fluctuations or prolonged static conditions.

[0007] Water and oil migration: Water activity gradients or oil phase polarity differences may exist between different phases, causing water or oily components to migrate from one phase to another. This may not only disrupt the emulsification stability of each phase (causing water or oil separation, thinning or hardening of the paste), but may also alter the dispersion environment of pigments, indirectly exacerbating color bleeding.

[0008] Active ingredient interactions and inactivation: If different colored phases contain different active skin care ingredients, they may undergo chemical reactions during undesirable contact or migration, leading to inactivation of each other, the production of irritants, or changes in product color (such as oxidative discoloration), which affects both efficacy and appearance.

[0009] Therefore, without effective stabilization technology, simply filling different colored pastes together cannot achieve the long-term storage stability required for commercial purposes, and the product may experience significant quality deterioration during its shelf life. Summary of the Invention

[0010] The purpose of this invention is to provide a multi-colored, patterned moisturizing cream, comprising at least two independently existing phases; The first phase is an aqueous gel; the aqueous gel comprises the following components by mass parts: Glycerin, at least 15 parts; Xanthan gum, at least 0.5 parts; Carbomer, at least 0.5 parts; Trehalose, at least 5 servings; Triethanolamine, at least 0.25 parts; Water, making the total mass fraction of the first phase 100 parts; The second phase is an oil-phase gel; the oil-phase gel comprises the following components by mass parts: Polydimethylsiloxane, at least 10 parts; Hydrogenated polyisobutylene, at least 12 parts; Wax, at least 3 parts; Lecithin, at least 1.5 parts; Water-in-oil emulsifier, at least 0.5 parts; Polyethylene, at least 3.0 parts; Cyclopentadimethylsiloxane and dioctyl carbonate make the total mass parts of the second phase 100 parts; Furthermore, the mass ratio of cyclopentamethoxysiloxane to dioctyl carbonate is 1:0.5-0.75; The density difference between the phases is ≤0.02 g / cm³. 3 .

[0011] Preferably, the first phase contains a water-soluble skin active ingredient, which is a component that is soluble in water and has at least one effect on the skin.

[0012] Preferably, the second phase contains a lipid-soluble skin active ingredient, which is a component that is soluble in lipids and has at least one effect on the skin.

[0013] Preferably, at least one phase contains a pigment; and the solubility of the pigment matches the solubility of the phase.

[0014] Preferably, the degree of polymerization of the polyethylene is ≤200.

[0015] Preferably, the melting point of the wax is between 60-85°C.

[0016] Preferably, the HLB value of the water-in-oil emulsifier is between 4.0 and 4.5.

[0017] A second objective of this invention is to provide a method for preparing the aforementioned multi-colored latte art moisturizing cream, comprising the following steps: Preparation of raw materials for S1: Weigh each raw material for later use; Preparation of the first phase of S2: Water, glycerol and trehalose were added to a container, heated and stirred until completely dissolved; then xanthan gum and carbomer were added; homogenized; after homogenization, the mixture was cooled to ≤40℃; triethanolamine and the remaining components were added while stirring; after the addition was completed, the mixture was stirred to remove air bubbles and the aqueous gel was obtained for later use; Preparation of S3 second phase: In a separate container, add all components except lecithin, water-in-oil emulsifier, and lipid-soluble skin active ingredients. Heat and stir continuously until a homogeneous and dissolved oil phase system is formed. Then, lower the temperature of the oil phase system and add the remaining components, stirring until completely dissolved and homogeneous. Then, continue to cool to room temperature to obtain an oil phase gel for later use. S4 synchronous filling: The aqueous phase gel and the oil phase gel are placed independently in different filling heads of the filling equipment and synchronously pushed into the same container; so that the aqueous phase gel and the oil phase gel exist in the same cavity of the container at the same time.

[0018] This invention, based on precise control of rheology and physicochemistry, aims to achieve the stable horizontal coexistence of two dissimilar phases (aqueous gel and oil gel) within the same container cavity, rather than the traditional method of layering or pre-emulsification. Its core principles can be divided into the following three levels: First, a highly cohesive "solid-like" gel network is constructed. This is the fundamental mechanical guarantee for achieving independent coexistence of the two phases. In the aqueous phase, the anionic polymer carbomer forms a highly elastic three-dimensional hydrated network under the action of the alkaline neutralizing agent triethanolamine, producing a synergistic thickening effect with the long-chain polysaccharide xanthan gum, jointly endowing the aqueous phase with extremely high static yield stress and elastic modulus. In the oil phase, hydrogenated polyisobutylene, as the main gelling agent, works synergistically with polyethylene of a specific low degree of polymerization (≤200) and wax with a melting point controlled within the range of 60-85℃, forming a dense and delicate crystalline fiber network during cooling. This allows both phases to exhibit solid-like behavior in a static state, resisting flow and deformation caused by their own gravity, thereby maintaining the preset geometric shape (such as parallel strips, blocks, or patterns).

[0019] Second, precise density matching is achieved to eliminate relative displacement. The key to long-term stable parallel operation of the two phases lies in eliminating buoyancy or sinking caused by density differences. This invention achieves balance through bidirectional adjustment: in the aqueous phase, glycerol and trehalose, as high-density water-soluble polyols and sugars, effectively increase the aqueous phase density; in the oil phase, cyclopentamethoxysiloxane (D5) and dioctyl carbonate are compounded in a specific mass ratio. D5 has a lower density, while dioctyl carbonate has a higher density; by adjusting their ratio, the oil phase density can be fine-tuned over a wide range. Ultimately, the density difference between the two phases is controlled to ≤0.02 g / cm³. 3 Within a very small range, it fundamentally avoids interphase penetration or interface tilting caused by gravity, ensuring the long-term physical stability of the parallel structure.

[0020] Third, an emulsification system with "interface stability - activation upon use" was designed. To achieve a seamless skin feel during application, an emulsification system was pre-formulated in the formula. Lecithin, as an amphiphilic component, is mainly distributed in the oil phase and enriched at the interface between the two phases, effectively reducing interfacial tension. However, due to its dosage and the system's high viscoelasticity, it is insufficient to trigger spontaneous emulsification under static conditions. Simultaneously, the added water-in-oil emulsifier (HLB value 4.0-4.5) is confined to the oil phase. When the consumer applies external force through kneading, the strong gel network of the two phases is broken by shear force, and the contents are fully mixed. At this point, the released emulsifier immediately takes effect, rapidly transforming the system into a uniform and delicate oil-in-water cream, achieving a seamless transition from stable coexistence to instantaneous blending.

[0021] Compared with the prior art, the solution provided by this invention brings multiple significant improvements and beneficial effects: This invention achieves a horizontally stable parallel arrangement of a high-viscosity gel-like aqueous and oil phases on a macroscopic scale in skincare products, creating a visually appealing "stitching" or "multi-color mosaic" effect. This structure is not a simple physical blend, but rather achieved through the aforementioned rheological and density-matching principles. Therefore, it possesses excellent physical and chemical stability, capable of withstanding temperature changes and vibrations during normal storage and transportation, and maintaining a clear interface and intact morphology over a long period.

[0022] The architecture of this invention provides an ideal partitioned storage environment for active ingredients. Water-soluble active ingredients (such as B vitamins and peptides) can be stably stored in the aqueous phase gel, while fat-soluble active ingredients (such as vitamin E, retinol and its derivatives, and vegetable oils) can be stably stored in the oil phase gel. This effectively solves the problem of incompatible components (such as acids and certain metal ions, or L-ascorbic acid and water) being difficult to coexist in traditional formulations. It also avoids the accelerated degradation of easily oxidized and hydrolyzed active ingredients during storage due to contact with another phase, thereby ensuring the optimal activity and efficacy of each ingredient when used by the consumer.

[0023] The simultaneous filling process of this invention allows two phases to be precisely filled into a container according to a preset pattern (such as parallel two-color, spiral, wavy, etc.), resulting in strong controllability of the production process. By adding pigments with matching solubility to different phases, products with rich colors and diverse patterns can be easily prepared, greatly enhancing the visual appeal and artistic value of the products and providing a broad technical foundation for personalized customization. Attached Figure Description

[0024] Figure 1 , Figure 2 Images of the finished product that remains stable after adding different pigments, as shown in Example 1 of this invention.

[0025] Figure 3 , Figure 4 Images of the finished product that remains stable after adding different pigments, as shown in Example 2 of this invention. Detailed Implementation

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Unless otherwise specified, the experimental methods used in the specific implementation methods are all conventional methods, and the materials and reagents used are all commercially available unless otherwise specified.

[0028] In this invention, unless otherwise specified, "%" represents a percentage by mass; the raw materials and reagents used are all commercially available products.

[0029] In this invention: The wax used is microcrystalline wax, model number 70#, with a melting point range of 70-75℃.

[0030] The degree of polymerization of the polyethylene used ranges from 160 to 180; the molecular weight is between 4500 and 5040 g / mol.

[0031] The water-in-oil emulsifier used was Span-80, with an HLB value of 4.3.

[0032] The pigments used include, but are not limited to: titanium dioxide, sunset yellow, indigo, manganese violet, oil-soluble citrus yellow, methylene blue, and methyl violet B.

[0033] The carbomer used is model 980.

[0034] Example 1: Preparation of Basic Two-Color Latte Art Moisturizing Cream Includes the following steps: S1 Raw Material Preparation and Pretreatment: Weigh all raw materials according to the following mass proportions and set aside; Aqueous gels, comprising the following components; Glycerin, 15 parts; Xanthan gum, 0.5 parts; Carbomer, 0.5 parts; Trehalose, 5 parts; Triethanolamine, 0.25 parts; Sunset Yellow, 0.1 part; Water, up to 100 parts; Oil-phase gel, comprising the following components: Polydimethylsiloxane, 10 parts; Hydrogenated polyisobutylene, 12 parts; Microcrystalline wax, 3 parts; Lecithin, 1.5 parts; Span -80, 0.5 portions; Polyethylene, 3.0 parts; Methyl violet B, 0.1 parts; Cyclopentadimethylsiloxane, 46.4 parts; Dioctyl carbonate, 23.5 parts; Preparation of S2 aqueous gel: Add deionized water, glycerin, and trehalose to the main container, and heat to 80±2℃ with stirring until completely dissolved. While stirring at medium speed (600 rpm), slowly and evenly sift xanthan gum and carbomer into the liquid surface to prevent clumping. After addition, increase the stirring speed to high-speed shear (2600 rpm) and homogenize for 6 minutes to form a uniform, particle-free slurry.

[0035] Cool the slurry to below 40°C. While stirring continuously (600 rpm), slowly add triethanolamine (in the form of a 10% aqueous solution, with water included in the total amount); continue stirring until completely homogeneous.

[0036] Continue stirring and add the remaining ingredients one by one. After all ingredients have been added, switch to low-speed stirring (300 rpm) to remove air bubbles until a smooth aqueous paste is obtained. Transfer it to hopper A of the filling machine and keep it warm at 25-30°C.

[0037] Preparation of S3 oil phase gel: In another container, add all oil phase components except lecithin and Span-80; heat to 80-85°C and stir continuously at this temperature (600 rpm) for 30 minutes to ensure that the polyethylene and microcrystalline wax are completely melted and the system is clear, transparent and free of particles.

[0038] Cool the oil phase mixture to 50-55°C. Add lecithin and Span-80, and stir at the same speed until completely dissolved and homogeneous.

[0039] Stir slowly at a rate of approximately 1°C / minute to cool to room temperature (25°C). After cooling, transfer it to hopper B of the filling machine for later use, maintaining the temperature at 25-30°C.

[0040] Key pretreatment steps before S4 filling: A hydrometer was used to accurately measure the density of the aqueous phase paste and the oil phase paste at 25°C.

[0041] If the difference between the two exceeds ±0.02 g / cm 3 Fine-tuning is required. The density can be matched by slightly increasing or decreasing the amount of glycerol in the aqueous phase or dioctyl carbonate in the oil phase.

[0042] Use a scraper or glass rod to pick up a small amount of paste and observe whether it can maintain its shape without collapsing, to make a preliminary judgment on whether its yield value is sufficient.

[0043] S5 Synchronous Filling and Molding: Connect hoppers A and B of the filling machine to the dual filling heads. Set the same filling pressure, speed, and discharge time according to the container's diameter and shape. Set the filling path to two adjacent parallel spiral lines starting from the center of the container.

[0044] Start the equipment to ensure that the two streams of paste begin, advance, and finish being squeezed into the container simultaneously.

[0045] The results are as follows Figure 1 , Figure 2 As shown in the figure, the two phases of the paste are arranged in a spiral shape and form a clear vertical interface; and no pigment migration occurs.

[0046] Example 2: Preparation of a two-tone latte art moisturizing cream loaded with active ingredients The difference from Example 1 lies in the raw material preparation and pretreatment in S1: Weigh all raw materials according to the following mass proportions and set aside; Aqueous gels, comprising the following components; Glycerin, 15 parts; Vitamin B5, 3 servings; Ascorbate glucoside, 2 parts; Dipotassium glycyrrhizate, 0.5 parts; Centella asiatica extract, 1.5 parts; Xanthan gum, 0.5 parts; Carbomer, 0.5 parts; Trehalose, 5 parts; Triethanolamine, 0.25 parts; Manganese violet, 0.1 part; Water, up to 100 parts; Oil-phase gel, comprising the following components: Polydimethylsiloxane, 10 parts; Hydrogenated polyisobutylene, 12 parts; Squalane, 5 parts; Vitamin E, 5 servings Microcrystalline wax, 3 parts; Lecithin, 1.5 parts; Span -80, 0.5 portions; Polyethylene, 3.0 parts; Methylene blue, 0.1 parts; Cyclopentadimethylsiloxane, 40.4 parts; Dioctyl carbonate, 20.5 parts.

[0047] The remaining steps are the same as in Example 1.

[0048] The results are as follows Figure 3 , Figure 4 As shown in the figure, the two phases of the paste are arranged in a spiral shape and form a clear vertical interface; and no pigment migration occurs.

[0049] Example 3: Preparation of Basic Two-Color Latte Art Moisturizing Cream The difference from Example 1 lies in the raw material preparation and pretreatment in S1: Weigh all raw materials according to the following mass proportions and set aside; Aqueous gels, comprising the following components; Glycerin, 21 parts; Triethanolamine, 0.25 parts; Indigo, 0.1 part; Water, up to 100 parts; Oil-phase gel, comprising the following components: Polydimethylsiloxane, 10 parts; Lecithin, 1.5 parts; Span -80, 0.5 portions; Polyethylene, 3.0 parts; Methyl violet B, 0.1 parts; Cyclopentadimethylsiloxane, 56.4 parts; Dioctyl carbonate, 28.5 parts; The remaining steps are the same as in Example 1.

[0050] After filling, compatibility issues were found between the two, and the biphasic gels could not be formed, resulting in collapse, pigment migration, and miscibility.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-colored, patterned moisturizing cream, characterized in that, It includes at least two independently existing phases; The first phase is an aqueous gel; the aqueous gel comprises the following components by mass parts. Glycerin, at least 15 parts; Xanthan gum, at least 0.5 parts; Carbomer, at least 0.5 parts; Trehalose, at least 5 servings; Triethanolamine, at least 0.25 parts; Water, making the total mass fraction of the first phase 100 parts; The second phase is an oil-phase gel; the oil-phase gel comprises the following components by mass parts: Polydimethylsiloxane, at least 10 parts; Hydrogenated polyisobutylene, at least 12 parts; Wax, at least 3 parts; Lecithin, at least 1.5 parts; Water-in-oil emulsifier, at least 0.5 parts; Polyethylene, at least 3.0 parts; Cyclopentadimethylsiloxane and dioctyl carbonate make the total mass parts of the second phase 100 parts; Furthermore, the mass ratio of cyclopentamethoxysiloxane to dioctyl carbonate is 1:0.5-0.75; The density difference between the phases is ≤0.02 g / cm³. 3 .

2. The multi-colored, patterned moisturizing cream according to claim 1, characterized in that, The first phase contains a water-soluble skin active ingredient, which is a component that is soluble in water and has at least one effect on the skin.

3. The multi-colored latte art moisturizing cream according to claim 1, characterized in that, The second phase contains a lipid-soluble skin active ingredient, which is a component that is soluble in lipids and has at least one effect on the skin.

4. The multi-colored latte art moisturizing cream according to claim 1, characterized in that, At least one of the phases contains a pigment; and the solubility of the pigment matches the solubility of the phase.

5. The multi-colored latte art moisturizing cream according to claim 1, characterized in that, The degree of polymerization of the polyethylene is ≤200.

6. The multi-colored latte art moisturizing cream according to claim 1, characterized in that, The melting point of the wax is between 60-85°C.

7. The multi-colored, patterned moisturizing cream according to claim 1, characterized in that, The HLB value of the water-in-oil emulsifier is between 4.0 and 4.

5.

8. The method for preparing the multi-colored latte art moisturizing cream according to any one of claims 1-7, characterized in that, Includes the following steps: Preparation of raw materials for S1: Weigh each raw material for later use; Preparation of the first phase of S2: Water, glycerol and trehalose were added to a container, heated and stirred until completely dissolved; then xanthan gum and carbomer were added; homogenized; after homogenization, the mixture was cooled to ≤40℃; triethanolamine and the remaining components were added while stirring; after the addition was completed, the mixture was stirred to remove air bubbles and the aqueous gel was obtained for later use; Preparation of S3 second phase: In a separate container, add all components except lecithin, water-in-oil emulsifier, and lipid-soluble skin active ingredients. Heat and stir continuously until a homogeneous and dissolved oil phase system is formed. Then, lower the temperature of the oil phase system and add the remaining components, stirring until completely dissolved and homogeneous. Then, continue to cool to room temperature to obtain an oil phase gel for later use. S4 synchronous filling: The aqueous phase gel and the oil phase gel are placed independently in different filling heads of the filling equipment and synchronously pushed into the same container; so that the aqueous phase gel and the oil phase gel exist in the same cavity of the container at the same time.

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