A multi-coat fragrance slow-release coating for prop mannequins

Abstract

The application relates to the technical field of intelligent retail and display, and particularly discloses a multi-coating essence slow-release coating for a prop model. The multi-coating essence slow-release coating for the prop model comprises a primer layer, a middle coating layer and a top coating layer which are sequentially coated on the surface of a prop model base material; the primer layer contains front-tune essence microcapsules, and the front-tune essence microcapsules are thick-wall slow-release essence microcapsules; the middle coating layer contains middle-tune essence microcapsules, and the middle-tune essence microcapsules are environment-responsive essence microcapsules; and the top coating layer contains rear-tune essence microcapsules, and the rear-tune essence microcapsules are porous thin-wall slow-release essence microcapsules. When the multi-coating essence slow-release coating for the prop model is applied, a static prop model can be converted into an intelligent fragrance interactive carrier which can actively provide hierarchical fragrance, can respond to external interaction and has vitality, and the overall application quality is excellent.

Description

Technical Field

[0001] This application relates to the field of smart retail and display technology, and more specifically, it relates to a multi-layer fragrance slow-release coating for prop mannequins. Background Technology

[0002] Traditional mannequins in retail settings primarily serve a static visual display function, limiting interaction with consumers to simply "looking," lacking multi-dimensional sensory engagement, and failing to effectively stimulate emotional resonance and purchasing desire. To enhance the shopping experience, some high-end retail stores or fashion shows have experimented with ambient fragrance systems, such as space sprays and diffusers, to create a pleasant shopping atmosphere. However, these technological solutions have the following significant drawbacks: Uneven scent distribution: The diffusion of ambient fragrance is greatly affected by airflow, temperature and humidity, making it difficult to form a stable and uniform fragrance field in the target area (such as around a model).

[0003] Uncontrollable release: The release of odors is continuous and undifferentiated, making it impossible to achieve a dynamic response to consumer behavior (such as proximity or touch), and lacking interactivity and personalization.

[0004] Weak connection with the subject (model) and scene: The fragrance of the environment is background and general, and lacks a direct and strong connection with the specific clothing style, brand tone or the model itself, making it difficult to construct an immersive and thematic sensory narrative.

[0005] In the fields of materials and chemicals, microencapsulation technology has matured and is widely used in industries such as textiles and daily chemicals to achieve controlled release of fragrances. However, there is a significant technological gap in applying microencapsulated fragrances to solid surface coatings, especially to special carriers such as mannequins: The mainstream surface materials and matching coating processes for mannequins are designed primarily to achieve high gloss, rich colors, durability, and stain resistance, among other physical and aesthetic properties. However, they neglect the integration of fragrance slow-release functionality. There is a lack of systematic research into the compatibility, stability, and release kinetics between the coating formulation, curing process, and fragrance microcapsules. Even when fragrance is added to the mannequin coating, it is often a simple, single-layer mixture, failing to simulate the complex aroma layers of natural fragrances or high-end perfumes that evolve over time (top, middle, and base notes). The release process is monotonous and uncontrollable, resulting in a static and passive fragrance experience.

[0006] Therefore, the industry urgently needs a multi-layer fragrance slow-release coating that can be deeply integrated with the prop mannequin and achieve controlled slow release and dynamic interaction of fragrance. Summary of the Invention

[0007] To address the aforementioned issues, this application aims to systematically integrate fragrance microcapsule technology with the multi-layer coating process of mannequins, design functional coatings with different release characteristics, and construct an intelligent display carrier that provides a layered and interactive fragrance experience. This application provides a multi-layer fragrance slow-release coating for prop mannequins.

[0008] Firstly, this application provides a multi-layer fragrance slow-release coating for prop mannequins, employing the following technical solution: A multi-layer fragrance slow-release coating for prop mannequins includes a primer layer, a middle layer and a topcoat layer sequentially coated on the surface of the prop mannequin substrate. The primer layer contains top-note fragrance microcapsules, and the top-note fragrance microcapsules are thick-walled sustained-release fragrance microcapsules; The intermediate coating contains mid-note fragrance microcapsules, and the mid-note fragrance microcapsules are environmentally responsive fragrance microcapsules; The topcoat layer contains post-fragrance microcapsules, and the post-fragrance microcapsules are porous, thin-walled, sustained-release fragrance microcapsules.

[0009] By adopting the above technical solution, the main function of the primer layer is to provide strong adhesion to the substrate. Utilizing its relatively closed structure and thick-walled microcapsules, it slows down the release of the originally highly volatile "top note" fragrance, making it the initial stage of the aroma sequence. The middle layer, as the main body of the coating structure, not only provides fullness and basic mechanical properties, but also, by designing the middle note fragrance microcapsules as environmentally responsive microcapsules, can be triggered by a slight increase in ambient temperature (such as heat from human touch) or slight pressure, becoming the core aroma experienced when consumers interact with the model, achieving a scene association of "interaction equals feedback." The base note fragrance microcapsules in the topcoat layer are porous, thin-walled, slow-release fragrance microcapsules. Their structure allows the fragrance to be released in the most natural, slow, but long-lasting way. This layer of fragrance serves as the background scent of the environment and is also the lingering aroma that consumers experience on the model's surface after touching it, ensuring the continuity and memorability of the fragrance experience.

[0010] The coating structure, consisting of a primer, intermediate coat, and topcoat, achieves a unique effect. It places the most vulnerable, long-released "thick-walled slow-release" (top notes) in the innermost layer for protection; the most environmentally responsive (middle notes) in the middle layer, allowing for easy exposure to external stimuli without direct surface abrasion; and the most naturally released "porous thin-walled" (base notes) in the outermost layer, minimizing its release path. This creates a combined "continuous release + triggered release" mechanism. The three-layer structure also provides physical barrier control over the release rate, enabling a three-stage, interactive fragrance evolution. Furthermore, when used with multi-layered fragrance slow-release coatings on mannequins, it transforms a static mannequin into a dynamic, intelligent fragrance interaction medium that actively provides layered fragrances and responds to external interactions, resulting in superior overall application quality.

[0011] Preferably, the primer layer is made from raw materials comprising the following parts by weight: 95-105 parts epoxy resin; 25-35 parts epoxy resin curing agent; Top note fragrance microcapsules, 4-6 parts; The pre-note fragrance microcapsules were prepared by the following steps: Gelatin solution and gum arabic solution were prepared. The top fragrance was added to the gelatin solution and subjected to high-speed shearing to obtain an emulsion. Then, the gum arabic solution was added to the emulsion under stirring. After adjusting the pH, the mixture was cooled. Finally, a cross-linking agent was added to carry out chemical cross-linking and curing. After the process was completed, the mixture was filtered, washed, and freeze-dried to obtain the top fragrance microcapsules.

[0012] By adopting the above technical solution, the primer layer constructed with epoxy resin as the main body and epoxy resin curing agent can firmly adhere to the surfaces of various substrates commonly used for prop mannequins. In the preparation of top-note fragrance microcapsules, gelatin and gum arabic are combined to form a composite condensed phase that encapsulates the top-note fragrance. After curing with a cross-linking agent, the resulting capsule wall has a certain thickness and density, meeting the functional requirements of thick-walled sustained-release fragrance microcapsules. This effectively regulates the initial release rate of the top-note fragrance, achieving the goal of "slowing down volatilization and prolonging release." Ultimately, this achieves delayed and stable release of the "top-note" aroma, and further ensures the reliability and durability of the primer layer as an "aroma reservoir" during long-term use, laying a solid and controllable "top-note" foundation for constructing a complete three-stage aroma experience.

[0013] Preferably, the top fragrance comprises the following components in parts by weight: 20-30 parts lemon oil; 15-25 parts sweet orange oil; 5-10 parts bergamot oil; 5-10 parts citral; 3-8 parts of linalool; 2-5 parts of linalyl acetate; 0.5-2 parts of methyl anthranilate 10-20 parts of diethyl phthalate.

[0014] By adopting the above technical solution, the top notes of fragrance formed by the combination of the above components can play a key role in "attracting, opening, and setting the tone" when they are released smoothly and continuously through the coating, laying a pleasant olfactory foundation for the subsequent "middle notes" interactive experience.

[0015] Preferably, the intermediate coating is made from raw materials comprising the following parts by weight: 95-105 parts of hydroxyl acrylic resin; 20-30 parts isocyanate curing agent; 7-9 parts of mid-note fragrance microcapsules; The mid-tone fragrance microcapsules were prepared by the following steps: Deionized water, emulsifier, and a portion of the mixed monomers containing N-isopropylacrylamide were added to a reaction vessel. After stirring and dissolving, nitrogen gas was introduced to remove oxygen, resulting in a premix. Then, the mid-tone fragrance, crosslinking agent, and the remaining mixed monomers containing N-isopropylacrylamide were mixed and added to the premix under high-speed shearing to obtain an emulsion. The emulsion was heated to the polymerization temperature, and an initiator was added under stirring to carry out the reaction. After the reaction was completed, the mid-tone fragrance microcapsules were obtained by cooling, filtering, washing, and freeze-drying.

[0016] By adopting the above technical solution, the paint film formed by the combination of hydroxyl acrylic resin and isocyanate curing agent has good flexibility and elasticity, which can effectively resist coating cracking caused by temperature difference changes or slight deformation of the model, and firmly adhere to the primer layer, providing stable support for the top layer. In the preparation of the middle-note fragrance microcapsules, a temperature-sensitive polymer network formed by mixed monomers containing N-isopropylacrylamide is used to realize the interactive function. The temperature-sensitive polymer network is stabilized by a crosslinking agent to prevent it from disintegrating in repeated swelling-shrinkage cycles, ensuring the long-term effectiveness of the "smart switch" function. This transforms external physical stimuli into physical changes in the internal chemical structure, thereby controlling the rate of fragrance release and realizing the intelligent interactive function of the "middle-note" fragrance "from the inside out, triggered by touch".

[0017] Preferably, the middle note fragrance comprises the following components in parts by weight: 15-25 parts rose absolute; 10-20 parts jasmine absolute oil; 5-10 parts ylang-ylang oil; Geraniol 4-8 parts; 5-10 parts of linalool; 3-7 parts of benzyl acetate; Citronellol 2-5 parts; 2-5 parts of linalyl acetate; Jasmine aldehyde 1-3 parts; 3-8 parts of Jiale Musk 10-15 parts of diethyl phthalate.

[0018] By adopting the above technical solution, the middle-note fragrance formed by the combination of the above components constructs a core "middle-note" fragrance that is rich in layers, has strong diffusion, and is very attractive. It can release a gorgeous and impactful floral fragrance instantly when triggered, and maintain a stable and long-lasting olfactory experience after being triggered.

[0019] Preferably, the topcoat layer is made from raw materials comprising the following parts by weight: 95-105 parts of UV-cured acrylic varnish; 2.5-3.5 parts of photoinitiator; 8-12 parts of base notes fragrance microcapsules; The post-flavoring microcapsules were prepared by the following steps: Starch raw materials are formulated into starch milk, and after adjusting the pH, α-amylase and saccharifying enzyme are added. After enzymatic hydrolysis, enzyme inactivation, centrifugation, washing, and drying are performed to obtain porous starch. Then, the flavoring is mixed with the porous starch powder and added to a saturated aqueous solution of β-cyclodextrin. After stirring, the mixture is cooled and allowed to stand. After filtration, washing, and vacuum drying, flavoring microcapsules are obtained.

[0020] By adopting the above technical solution, UV-curable acrylic varnish, with the main film-forming resin, combined with a photoinitiator, constitutes a UV curing system. After curing, the varnish film exhibits high hardness, good gloss, and high transparency, effectively protecting the underlying coating, showcasing optimal surface visual effects, and resisting daily wiping, friction, and scratches. In the preparation of base-note fragrance microcapsules, starch raw materials are enzymatically hydrolyzed with α-amylase and saccharifying enzymes, forming numerous microporous structures inside and on the surface of starch granules, resulting in "porous starch." This allows for the physical adsorption of large amounts of base-note fragrance. This starch is then added to a saturated aqueous solution of β-cyclodextrin and stirred, ultimately forming a dual encapsulation structure of "physical adsorption (porous starch) + molecular inclusion (β-cyclodextrin)," resulting in an excellent sustained-release effect. This dual-barrier mechanism makes the fragrance release process extremely smooth, uniform, and long-lasting, precisely achieving the desired sustained release behavior of the "base notes." After the base notes are released, they work synergistically with the rapidly volatile "top notes" and the interactively triggered "middle notes."

[0021] Preferably, the base fragrance comprises the following components in parts by weight: 15-25 parts sandalwood oil; 10-20 parts cedar oil; Patchouli oil, 5-15 parts; 8-15 parts of Gyala Musk; 2-5 parts cashmereone; 2-5 parts coumarin; Ethyl maltol 0.5-2 parts; Vanillin 1-3 parts; 10-20 parts of diethyl phthalate.

[0022] By adopting the above technical solution, the base fragrance formed by the combination of the above components is released in an extremely slow, continuous and long-lasting manner. This fragrance will envelop all the scents of the top and middle notes, and finally be defined as a long, warm and reassuring olfactory finish, which is deeply imprinted in the consumer's sensory memory, achieving a perfect ending and closed loop for the entire three-stage fragrance experience.

[0023] Preferably, the thickness of the primer layer is 5-10 μm, the thickness of the intermediate layer is 20-30 μm, and the thickness of the topcoat layer is 15-20 μm.

[0024] By adopting the above technical solution, the core function of the primer layer is to adhere strongly to the substrate. A thickness of 5-10μm is sufficient to form a continuous and complete paint film, effectively fulfilling its functions of adhesion, sealing, and basic support. The intermediate layer is the carrier of the "middle note" fragrance and also the key layer to realize the "touch release" interactive function. A thickness of 20-30μm can ensure the response speed and provide sufficient physical "buffer" space for the microcapsules, which can trigger a larger area and more uniform fragrance release, optimizing the interactive experience. As the outermost layer, the topcoat layer needs to provide excellent surface hardness, abrasion resistance, gloss, and weather resistance. A thickness of 15-20μm can meet the application requirements. By optimizing the thickness of each layer, the release sequence, intensity, and interactive response characteristics of the three-stage fragrance are precisely controlled from the physical structure, ultimately achieving the desired immersive and accessible fragrance interactive experience.

[0025] Secondly, this application provides a method for preparing a multi-layer fragrance slow-release coating for prop mannequins, employing the following technical solution: A method for preparing a multi-layer fragrance slow-release coating for prop mannequins includes the following steps: (1) Clean, polish and remove static electricity from the surface of the prop mannequin substrate; (2) Prepare a primer and spray it onto the surface of the prop mannequin substrate. After curing, prepare an intermediate coat and spray it. After curing again, prepare a topcoat and spray it. After curing, obtain a multi-layer fragrance slow-release coating for the prop mannequin.

[0026] Thirdly, this application provides an application of a multi-layer fragrance slow-release coating for prop mannequins, employing the following technical solution: An application of a multi-layer fragrance slow-release coating for mannequin props, the multi-layer fragrance slow-release coating for mannequin props being used for immersive fragrance displays in apparel retail, brand fashion shows or art exhibitions.

[0027] In summary, this application has the following beneficial effects: This application places the most vulnerable and time-consuming "thick-walled sustained-release" (top note) in the innermost protective layer; places the "environmentally responsive" (middle note) that needs the most contact with the outside world in the middle layer, making it easy to receive external stimuli without being directly exposed to surface abrasion; and places the most naturally released "porous thin-walled" (base note) in the outermost layer, making its release path the shortest. In this way, a composite mechanism of "continuous release + triggered release" is built, and the release rate is physically blocked and controlled by the three-layer structure to achieve a three-stage, interactive fragrance evolution. This creates an intelligent display carrier that can provide a hierarchical and interactive fragrance experience, realizing the desired immersive and accessible fragrance interaction experience. Detailed Implementation

[0028] The present application will be further described in detail below with reference to preparation examples, embodiments and comparative examples.

[0029] Unless otherwise specified, all raw materials used in the preparation examples, embodiments and comparative examples of this application are commercially available.

[0030] The epoxy resin was purchased from Dow Chemical Company in the United States as DEN439-EX85 phenolic epoxy resin. The epoxy resin curing agent was purchased from Baling Petrochemical's CYDHD-593 epoxy resin curing agent. The hydroxyl acrylic resin was purchased from Jinfengyuan RS-360A hydroxyl acrylic resin. The isocyanate curing agent was purchased from Shanghai Bolino New Material Technology Co., Ltd. as BL-3851 blocked isocyanate curing agent. UV-curable acrylic varnish was purchased from Weizhanxin EBECRIL 3708; The photoinitiator was purchased from BASF 907 photoinitiator. Preparation examples of raw materials and / or intermediates

[0031] Preparation Example 1 A type of top-note fragrance microcapsule is prepared by the following steps: Gelatin solution and gum arabic solution were prepared and kept warm in a 50°C water bath. The top fragrance was added to the gelatin solution and emulsion was obtained by high-speed shearing. Then, gum arabic solution was added to the emulsion under stirring. After adjusting the pH to 4.0, the temperature was lowered to 5°C. Finally, glutaraldehyde crosslinking agent was added for chemical crosslinking and curing. After completion, the mixture was filtered, washed and freeze-dried to obtain top fragrance microcapsules.

[0032] Note: In the above operations, the concentration of both gelatin solution and gum arabic solution is 3 (w / v), and the mass ratio of gelatin solution to gum arabic solution is 1:1; the mass ratio of core material (top fragrance) to wall material (gelatin + gum arabic) is 1:1.5, and the wall material thickness is 8μm; the components of top fragrance and their corresponding weight parts are shown in Table 1.

[0033] Preparation Examples 2-3 A top-note fragrance microcapsule differs from Preparation Example 1 in that the components and corresponding weight parts of the top-note fragrance are shown in Table 1.

[0034] Table 1. Components and corresponding weight parts (parts / kg) of the top notes in Preparation Examples 1-3 Components Preparation Example 1 Preparation Example 2 Preparation Example 3 Lemon oil 25 20 30 Sweet orange oil 20 15 25 Bergamot oil 7.5 5 10 citral 7.5 5 10 Linalool 5.5 3 8 Linaloyl acetate 3.5 2 5 Methyl anthranilate 1.25 0.5 2 Diethyl phthalate 15 10 20 Preparation Example 4 A type of mid-note fragrance microcapsule is prepared by the following steps: Deionized water, sodium dodecyl sulfate emulsifier, and 35% by weight of N-isopropylacrylamide mixed monomers were added to a reaction vessel. After stirring and dissolving, nitrogen gas was introduced to remove oxygen, resulting in a premix. Then, the mid-tone fragrance, N,N'-methylenebisacrylamide crosslinking agent, and the remaining N-isopropylacrylamide mixed monomers were mixed and added to the premix under high-speed shearing to obtain an emulsion. The emulsion was heated to the polymerization temperature of 65°C, and azobisisobutyronitrile initiator was added under stirring to carry out the reaction. After 8 hours of reaction, the mixture was cooled, filtered, washed, and freeze-dried to obtain mid-tone fragrance microcapsules.

[0035] Note: In the above operations, the mixed monomers containing N-isopropylacrylamide consist of N-isopropylacrylamide and butyl methacrylate in a weight ratio of 9:1; the N,N'-methylenebisacrylamide crosslinking agent accounts for 5% of the total mass of the mixed monomers containing N-isopropylacrylamide; the azobisisobutyronitrile initiator accounts for 0.8% of the total mass of the mixed monomers containing N-isopropylacrylamide; the sodium dodecyl sulfate emulsifier accounts for 0.5% of the total mass of the mixed monomers containing N-isopropylacrylamide; the deionized water accounts for 5 times the total mass of the mixed monomers containing N-isopropylacrylamide; and the mass ratio of core material to wall material is 3:1. The components and corresponding weight parts of the middle fragrance are shown in Table 2.

[0036] Preparation Examples 5-6 A mid-note fragrance microcapsule differs from Preparation Example 4 in that the components and corresponding weight parts of the mid-note fragrance are shown in Table 2.

[0037] Table 2 shows the components and corresponding weight parts (parts / kg) of the fragrances prepared in Examples 4-6. Components Preparation Example 4 Preparation Example 5 Preparation Example 6 Rose essential oil 20 15 25 Jasmine Puree 15 10 20 Ylang-ylang oil 7.5 5 10 Geraniol 6 4 8 Linalool 7.5 5 10 benzyl acetate 5 3 7 Citronellol 3.5 2 5 Linaloyl acetate 3.5 2 5 Jasmine aldehyde 2 1 3 Jiale Musk 5.5 3 8 Diethyl phthalate 12.5 10 15 Preparation Example 7 A microcapsule containing a base flavoring is prepared by the following steps: Starch raw materials were formulated into starch milk, and after adjusting the pH, α-amylase and saccharifying enzyme were added. After enzymatic hydrolysis at 55°C for 4 hours, enzyme inactivation, centrifugation, washing, and drying were performed to obtain porous starch. Then, the flavoring essence was mixed with the porous starch powder and added to a saturated aqueous solution of β-cyclodextrin at a ratio of 14g:20mL. After stirring, the mixture was cooled and allowed to stand. After filtration, washing, and vacuum drying, flavoring essence microcapsules were obtained.

[0038] Note: In the above operation, the enzyme activity ratio of α-amylase and saccharifying enzyme is 1:3, and the total amount of enzyme added is 2% of the mass of starch raw material; the mass ratio of flavoring to porous starch powder is 1:4; the wall material thickness is 3μm; the components and corresponding weight parts of flavoring are shown in Table 3.

[0039] Preparation Examples 8-9 A base note fragrance microcapsule differs from Preparation Example 7 in that the components and corresponding weight parts of the base note fragrance are shown in Table 3.

[0040] Table 3. Components and corresponding weight parts (parts / kg) of the post-fragrances prepared in Examples 7-9. Components Preparation Example 7 Preparation Example 8 Preparation Example 9 Sandalwood oil 20 15 25 cedar oil 15 10 20 Patchouli oil 10 5 15 Jiale Musk 11.5 8 15 Cashmere 3.5 2 5 Coumarin 3.5 2 5 Ethyl maltol 1.25 0.5 2 Vanillin 2 1 3 Diethyl phthalate 15 10 20 Example Example 1

[0041] A multi-layer fragrance slow-release coating for mannequins comprises a primer layer, a mid-coat layer, and a topcoat layer sequentially coated onto the surface of a mannequin substrate, and is prepared through the following steps: (1) Clean, polish and remove static electricity from the surface of the prop mannequin substrate; (2) Prepare the primer and spray it on the surface of the prop mannequin substrate. After baking at 60°C for 30 minutes to cure, prepare the intermediate coat and spray it. After baking at 60°C for 40 minutes to cure, prepare the topcoat and spray it. After UV curing, a multi-layer fragrance slow-release coating for prop mannequins is obtained.

[0042] Note: In the above operations, the primer layer was prepared by blending the following raw materials in parts by weight (parts / kg): 100 parts epoxy resin, 30 parts epoxy resin curing agent, and 5 parts top fragrance microcapsules; and the top fragrance microcapsules were obtained from Preparation Example 1. The intermediate layer was prepared by blending the following raw materials in parts by weight (parts / kg): 100 parts hydroxyl acrylic resin, 25 parts isocyanate curing agent, and 8 parts mid fragrance microcapsules; and the mid fragrance microcapsules were obtained from Preparation Example 4. The topcoat layer was prepared by blending the following raw materials in parts by weight (parts / kg): 100 parts UV-curable acrylic varnish, 3.0 parts photoinitiator, and 10 parts base fragrance microcapsules; and the base fragrance microcapsules were obtained from Preparation Example 7. The thickness of the primer layer was 7.5 μm, the thickness of the intermediate layer was 25 μm, and the thickness of the topcoat layer was 17.5 μm. Example 2

[0043] A multi-layer fragrance slow-release coating for prop mannequins differs from Example 1 in that the primer layer is made by blending the following raw materials in parts by weight (parts / kg): 95 parts epoxy resin, 25 parts epoxy resin curing agent, and 4 parts top fragrance microcapsules; and the top fragrance microcapsules are obtained from Preparation Example 1. Example 3

[0044] A multi-layer fragrance slow-release coating for prop mannequins differs from Example 1 in that the primer layer is made by blending the following raw materials in parts by weight (parts / kg): 105 parts epoxy resin, 35 parts epoxy resin curing agent, and 6 parts top fragrance microcapsules; and the top fragrance microcapsules are obtained from Preparation Example 1. Example 4

[0045] A multi-layer fragrance slow-release coating for prop mannequins, differing from Example 1 in that the top-note fragrance microcapsules are obtained from Preparation Example 2. Example 5

[0046] A multi-layer fragrance slow-release coating for prop mannequins, differing from Example 1 in that the top-note fragrance microcapsules are obtained from Preparation Example 3. Example 6

[0047] A multi-layer fragrance slow-release coating for prop mannequins differs from Example 1 in that the intermediate layer is prepared by blending the following raw materials in parts by weight (parts / kg): 95 parts of hydroxyl acrylic resin, 20 parts of isocyanate curing agent, and 7 parts of mid-note fragrance microcapsules; and the mid-note fragrance microcapsules are obtained from Preparation Example 4. Example 7

[0048] A multi-layer fragrance slow-release coating for prop mannequins differs from Example 1 in that the intermediate layer is prepared by blending the following raw materials in parts by weight (parts / kg): 105 parts of hydroxyl acrylic resin, 30 parts of isocyanate curing agent, and 9 parts of mid-note fragrance microcapsules; and the mid-note fragrance microcapsules are obtained from Preparation Example 4. Example 8

[0049] A multi-layer fragrance slow-release coating for prop mannequins, differing from Example 1 in that the middle-note fragrance microcapsules are obtained from Preparation Example 5. Example 9

[0050] A multi-layer fragrance slow-release coating for prop mannequins, differing from Example 1 in that the middle-note fragrance microcapsules are obtained from Preparation Example 6. Example 10

[0051] A multi-layer fragrance slow-release coating for prop mannequins differs from Example 1 in that the topcoat layer is made by blending the following raw materials in parts by weight (parts / kg): 95 parts UV-curable acrylic varnish, 2.5 parts photoinitiator, and 8 parts post-fragrance microcapsules; and the post-fragrance microcapsules are obtained from Preparation Example 7. Example 11

[0052] A multi-layer fragrance slow-release coating for prop mannequins differs from Example 1 in that the topcoat layer is made by blending the following raw materials in parts by weight (parts / kg): 105 parts UV-curable acrylic varnish, 3.5 parts photoinitiator, and 12 parts post-fragrance microcapsules; and the post-fragrance microcapsules are obtained from Preparation Example 7. Example 12

[0053] A multi-layer fragrance sustained-release coating for prop mannequins, differing from Example 1 in that the base fragrance microcapsules are obtained from Preparation Example 8. Example 13

[0054] A multi-layer fragrance sustained-release coating for prop mannequins, differing from Example 1 in that the base fragrance microcapsules are obtained from Preparation Example 9. Example 14

[0055] A multi-layer fragrance slow-release coating for prop mannequins differs from Example 1 in that the thickness of the primer layer is 5 μm, the thickness of the intermediate layer is 20 μm, and the thickness of the topcoat layer is 15 μm. Example 15

[0056] A multi-layer fragrance slow-release coating for prop mannequins differs from Example 1 in that the thickness of the primer layer is 10 μm, the thickness of the intermediate layer is 30 μm, and the thickness of the topcoat layer is 20 μm. Performance testing

[0057] Test samples: The multi-layer fragrance slow-release coatings obtained in Examples 1-15 for prop mannequins were selected as test samples 1-15, and ABS material was used as the base material for the costume mannequins.

[0058] Experimental method: Twelve evaluators with a healthy sense of smell, no smoking habit, and strong communication skills were selected, and all of them were able to pass the standard olfactory test screening.

[0059] Sensory analysis was conducted in a laboratory conforming to GB / T 10220 standards, under constant temperature and humidity (22±2℃, 50±5% RH), free from odor interference, and using red light to eliminate the influence of color on judgment. The multi-layered fragrance slow-release coating used on the prop mannequins was placed in a uniform opaque container, with only the odor emission vent exposed.

[0060] First, a static layer evaluation test is conducted. Evaluators approach the sample at the 8-hour time point and evaluate independently, assessing the "richness and clarity of aroma changes" (1-5 points, 1=single and unchanged, 5=very rich and clear layers).

[0061] Next, a dynamic interactive responsiveness evaluation test was conducted. The evaluator approached the sample at the 8-hour time point and then rapidly heated the local surface of the coating to 35°C (simulating touch) using a hot table, maintained it for 10 minutes, and simultaneously rubbed the surface with a standard skin-like friction head at a specified pressure (9.8 kPa) and frequency (1 Hz). The intensity change was evaluated immediately after the test, and the sensory evaluation results before and after the stimulation were compared.

[0062] After performing the above tests on test samples 1-15, the test results are recorded in Table 4.

[0063] Table 4 Test results of test samples 1-15 sample Static Hierarchical Evaluation Test Dynamic Interactive Responsiveness Evaluation Test Test sample 1 Average score for hierarchy of ideas ≥ 4.0 More than 80% of evaluators perceived a significant improvement. Test sample 2 Average score for hierarchy of ideas ≥ 4.0 More than 80% of evaluators perceived a significant improvement. Test sample 3 Average score for hierarchy of ideas ≥ 4.0 More than 80% of evaluators perceived a significant improvement. Test sample 4 Average score for hierarchy of ideas ≥ 4.0 More than 80% of evaluators perceived a significant improvement. Test sample 5 Average score for hierarchy of ideas ≥ 4.0 More than 80% of evaluators perceived a significant improvement. Test sample 6 Average score for hierarchy of ideas ≥ 4.0 More than 80% of evaluators perceived a significant improvement. Test sample 7 Average score for hierarchy of ideas ≥ 4.0 More than 80% of evaluators perceived a significant improvement. Test sample 8 Average score for hierarchy of ideas ≥ 4.0 More than 80% of evaluators perceived a significant improvement. Test sample 9 Average score for hierarchy of ideas ≥ 4.0 More than 80% of evaluators perceived a significant improvement. Test sample 10 Average score for hierarchy of ideas ≥ 4.0 More than 80% of evaluators perceived a significant improvement. Test sample 11 Average score for hierarchy of ideas ≥ 4.0 More than 80% of evaluators perceived a significant improvement. Test sample 12 Average score for hierarchy of ideas ≥ 4.0 More than 80% of evaluators perceived a significant improvement. Test sample 13 Average score for hierarchy of ideas ≥ 4.0 More than 80% of evaluators perceived a significant improvement. Test sample 14 Average score for hierarchy of ideas ≥ 4.0 More than 80% of evaluators perceived a significant improvement. Test sample 15 Average score for hierarchy of ideas ≥ 4.0 More than 80% of evaluators perceived a significant improvement. As can be seen from Examples 1-15 and Table 4, this application has achieved a three-stage, interactive aroma evolution by constructing a composite mechanism of "continuous release + triggered release" and using a three-layer structure to physically block and regulate the release rate. This results in the construction of an intelligent display carrier that can provide a hierarchical and interactive aroma experience, achieving the desired immersive and accessible aroma interaction experience. The overall application evaluation effect is excellent.

[0064] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A multi-layer fragrance slow-release coating for prop mannequins, characterized in that, This includes a primer layer, a mid-coat layer, and a topcoat layer, which are sequentially applied to the surface of the prop mannequin substrate; The primer layer contains top-note fragrance microcapsules, and the top-note fragrance microcapsules are thick-walled sustained-release fragrance microcapsules; The intermediate coating contains mid-note fragrance microcapsules, and the mid-note fragrance microcapsules are environmentally responsive fragrance microcapsules; The topcoat layer contains post-fragrance microcapsules, and the post-fragrance microcapsules are porous, thin-walled, sustained-release fragrance microcapsules.

2. The multi-layer fragrance slow-release coating for prop mannequins according to claim 1, characterized in that: The primer layer is made from raw materials comprising the following parts by weight: 95-105 parts epoxy resin; 25-35 parts epoxy resin curing agent; Top note fragrance microcapsules, 4-6 parts; The pre-note fragrance microcapsules were prepared by the following steps: Gelatin solution and gum arabic solution were prepared. The top fragrance was added to the gelatin solution and subjected to high-speed shearing to obtain an emulsion. Then, the gum arabic solution was added to the emulsion under stirring. After adjusting the pH, the mixture was cooled. Finally, a cross-linking agent was added to carry out chemical cross-linking and curing. After the process was completed, the mixture was filtered, washed, and freeze-dried to obtain the top fragrance microcapsules.

3. The multi-layer fragrance slow-release coating for prop mannequins according to claim 2, characterized in that: The top fragrance contains the following components in parts by weight: 20-30 parts lemon oil; 15-25 parts sweet orange oil; 5-10 parts bergamot oil; 5-10 parts citral; 3-8 parts of linalool; 2-5 parts of linalyl acetate; 0.5-2 parts of methyl anthranilate 10-20 parts of diethyl phthalate.

4. The multi-layer fragrance slow-release coating for prop mannequins according to claim 1, characterized in that: The intermediate coating is made from raw materials comprising the following parts by weight: 95-105 parts of hydroxyl acrylic resin; 20-30 parts isocyanate curing agent; 7-9 parts of mid-note fragrance microcapsules; The mid-tone fragrance microcapsules were prepared by the following steps: Deionized water, emulsifier, and a portion of the mixed monomers containing N-isopropylacrylamide were added to a reaction vessel. After stirring and dissolving, nitrogen gas was introduced to remove oxygen, resulting in a premix. Then, the mid-tone fragrance, crosslinking agent, and the remaining mixed monomers containing N-isopropylacrylamide were mixed and added to the premix under high-speed shearing to obtain an emulsion. The emulsion was heated to the polymerization temperature, and an initiator was added under stirring to carry out the reaction. After the reaction was completed, the mid-tone fragrance microcapsules were obtained by cooling, filtering, washing, and freeze-drying.

5. The multi-layer fragrance slow-release coating for prop mannequins according to claim 4, characterized in that: The middle-note fragrance comprises the following components in parts by weight: 15-25 parts rose absolute; 10-20 parts jasmine absolute oil; 5-10 parts ylang-ylang oil; Geraniol 4-8 parts; 5-10 parts of linalool; 3-7 parts of benzyl acetate; Citronellol 2-5 parts; 2-5 parts of linalyl acetate; Jasmine aldehyde 1-3 parts; 3-8 parts of Jiale Musk 10-15 parts of diethyl phthalate.

6. The multi-layer fragrance slow-release coating for prop mannequins according to claim 1, characterized in that: The topcoat layer is made from raw materials comprising the following parts by weight: 95-105 parts of UV-cured acrylic varnish; 2.5-3.5 parts of photoinitiator; 8-12 parts of base notes fragrance microcapsules; The post-flavoring microcapsules were prepared by the following steps: Starch raw materials are formulated into starch milk, and after adjusting the pH, α-amylase and saccharifying enzyme are added. After enzymatic hydrolysis, enzyme inactivation, centrifugation, washing, and drying are performed to obtain porous starch. Then, the flavoring is mixed with the porous starch powder and added to a saturated aqueous solution of β-cyclodextrin. After stirring, the mixture is cooled and allowed to stand. After filtration, washing, and vacuum drying, flavoring microcapsules are obtained.

7. The multi-layer fragrance slow-release coating for prop mannequins according to claim 6, characterized in that: The base fragrance contains the following components in parts by weight: 15-25 parts sandalwood oil; 10-20 parts cedar oil; Patchouli oil, 5-15 parts; 8-15 parts of Gyala Musk; 2-5 parts cashmereone; 2-5 parts coumarin; Ethyl maltol 0.5-2 parts; Vanillin 1-3 parts; 10-20 parts of diethyl phthalate.

8. The multi-layer fragrance slow-release coating for prop mannequins according to claim 1, characterized in that: The thickness of the primer layer is 5-10 μm, the thickness of the intermediate layer is 20-30 μm, and the thickness of the topcoat layer is 15-20 μm.

9. The method for preparing the multi-layer fragrance slow-release coating for prop mannequins according to any one of claims 1-8, characterized in that: Includes the following steps: (1) Clean, polish and remove static electricity from the surface of the prop mannequin substrate; (2) Prepare a primer and spray it onto the surface of the prop mannequin substrate. After curing, prepare an intermediate coat and spray it. After curing again, prepare a topcoat and spray it. After curing, obtain a multi-layer fragrance slow-release coating for the prop mannequin.

10. The application of a multi-layer fragrance slow-release coating for prop mannequins as described in any one of claims 1-8, characterized in that: The multi-layered fragrance slow-release coating used for prop mannequins is intended for immersive fragrance displays in apparel retail, brand fashion shows, or art exhibitions.