Energy storage type advertisement painting light-emitting film

Abstract

The invention discloses an energy storage type advertisement painting light-emitting film, and relates to the technical field of light-emitting films, the energy storage type advertisement painting light-emitting film comprises a base material layer, and a light-emitting layer and an ink-jet layer which are fixedly arranged at one end of the base material layer in sequence; the light-emitting layer is a first mixed layer formed by uniformly mixing adhesive liquid and a plurality of groups of light-emitting particles; the light-emitting particles comprise phosphor particles and coating layers fixedly arranged outside the phosphor particles, and the coating layers are silicon dioxide layers; the method has the advantages that the phosphor particles are adopted as the light energy storage material, a good long afterglow effect and a high-efficiency conversion effect can be provided, the phosphor particles are provided with the coating layers in advance in the modes of precipitation coating and the like, and then the coating layers are mixed with the adhesion liquid, so that agglomeration can be reduced, and the luminous efficiency and the brightness can be improved; the arranged adhesive liquid can improve the absorption efficiency and dispersion uniformity of the luminous particles and the adhesive strength of the substrate layer; and the protective layer covers the light-emitting layer and the ink-jet layer, so that the protectiveness is improved.

Description

Technical Field

[0001] The invention relates to the technical field, and more specifically to an energy storage type advertising spray-painted luminous film. Background Art

[0002] Energy storage advertising inkjet luminous film is a special advertising material that combines energy storage technology and luminous technology. It is mainly used in outdoor or indoor advertising, signboards, decoration and other fields. The working principle of this material is to first absorb and store energy in a well-lit environment (such as sunlight or light), and then slowly release the energy in the absence of light or dim light conditions, thereby achieving a self-luminous effect; Spray-painted film (advertising spray-painted film) is a material specially used for outdoor or indoor advertising. It uses spray-painting technology to print patterns, texts, images, etc. on its surface to achieve the purpose of advertising. The existing {such as the publication (publication) number: CN215440302U, a high weather resistance inkjet film} proposed that "the luminous layer is made of PVC plastic, PU plastic, medium or acidic resin with good transparency and luminous pigment at high temperature to provide luminescence; At the same time {Publication (Announcement) No.: CN211865710U, A bridge cable tower hydrophobic self-luminous coating structure} "The self-luminous functional layer is one of acrylic aliphatic polyurethane topcoat, polysiloxane topcoat, and fluorocarbon resin paint with fluorescent properties; the fluorescent property is preferably added with fluorescent powder. The addition amount of the fluorescent powder is preferably 10wt%-50wt%", to provide luminescence; However, phosphor is also a good material for energy storage and absorption, and the fluorescent powder used above is directly mixed with various paints to form a light-emitting layer. Therefore, the light-emitting layer has the disadvantages of low light uniformity due to the easy agglomeration of the fluorescent powder, and low efficiency due to large energy loss during excitation. Summary of the invention

[0003] The purpose of the present invention is to solve the above technical problems and provide an energy storage type advertising inkjet luminous film.

[0004] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: The present invention provides an energy storage type advertising inkjet luminous film, comprising a substrate layer and a luminous layer and an inkjet layer fixed in sequence at one end of the substrate layer; The luminescent layer is a first mixed layer formed by uniformly mixing the adhesive liquid and a plurality of groups of luminescent particles; The luminescent particles include phosphor particles and a coating layer fixed outside thereof, and the coating layer is a silicon dioxide layer.

[0005] As a preferred technical solution of the present invention, the material of the substrate layer is PVC.

[0006] As a preferred technical solution of the present invention, the adhesive liquid is a resin adhesive or is formed by uniformly mixing a resin adhesive, a dispersant and a photosensitizer.

[0007] As a preferred technical solution of the present invention, it also includes a protective layer fixedly arranged outside the inkjet layer.

[0008] As a preferred technical solution of the present invention, the protective layer is a UV curing resin layer or a polyurethane varnish layer; Alternatively, the protective layer is a second mixed layer formed by uniformly mixing a UV curing resin or polyurethane varnish with a cross-linking agent.

[0009] The beneficial effects of the present invention are as follows: By using phosphor particles 221 as light storage materials, a good long afterglow effect and high-efficiency conversion effect can be provided. The phosphor particles 221 are pre-coated with a coating layer 222 by precipitation coating or the like, and then mixed with the adhesive liquid 21, which can reduce agglomeration and increase luminous efficiency and brightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the present invention.

[0011] Reference numerals: substrate layer-1, light-emitting layer-2, inkjet layer-3, protective layer-4, adhesive liquid-21, light-emitting particles-22, phosphor particles-221, covering layer-222. DETAILED DESCRIPTION Embodiment 1:

[0012] like Figure 1 As shown, this embodiment proposes: an energy storage type advertising inkjet luminous film, comprising a substrate layer 1 and a luminous layer 2 and an inkjet layer 3 fixedly arranged at one end of the substrate layer 1 in sequence (as shown in the figure, the luminous layer 2 is arranged on the top of the substrate layer 1 by spraying or coating, and the inkjet layer 3 is arranged on the top of the luminous layer 2 by spraying or coating), according to the following, the luminous layer 2 stores energy (light energy, etc.) in a bright environment (daytime, lighting environment), and emits light in a dark environment (night, etc.), so as to provide a display effect for the inkjet layer 3; The material of the substrate layer 1 is PVC, etc., and PVC has the effects of weather resistance and flexibility; The luminescent layer 2 is a first mixed layer formed by uniformly mixing an adhesive liquid 21 (the adhesive liquid 21 is transparent) and a plurality of groups of luminescent particles 22 (the luminescent layer 2 is formed by spraying or coating the adhesive liquid 21 and the plurality of groups of luminescent particles 22, and can be dried after the formation); The luminescent particles 22 include phosphor particles 221 and a coating layer 222 fixed thereon (using the phosphor particles 221 as a light energy storage material can provide a good long afterglow effect and high efficiency conversion effect). According to the above, the plurality of groups of luminescent particles 22 are the coated phosphor powders; Furthermore, phosphor powder can also be fluorescent powder: both fluorescent powder and phosphor have the ability to store energy and emit light. The main difference between phosphor and fluorescent powder is that they can convert part of the absorbed energy into heat or other forms of energy and store it, and gradually release it after a long time. This process can last for a period of time. This "slow release" characteristic makes phosphor have a longer afterglow time than fluorescent powder, that is, after stopping the excitation, the phosphor can continue to emit light for a period of time; The coating layer 222 is a silicon dioxide layer or the like (the coating layer 222 is formed on the outside of the phosphor particles 221 by using a precipitation coating or a sol-gel coating method to improve the energy storage capacity); The advantages of using coating layer 222 are as follows: The core of the phosphor particles 221 can be protected, and the energy loss caused by the direct contact of the luminous center with the outside world can be reduced. The silicon dioxide material layer can better isolate the direct contact with the subsequent adhesion liquid 21, thereby extending the service life and stability of the phosphor. It can provide stable spacing for the phosphor particles 221, prevent direct contact and reduce agglomeration, and provide more uniform light emission in subsequent applications; It can effectively reduce the unnecessary loss of the excitation energy (such as light energy, etc.) absorbed inside the phosphor particles 221 before being converted into light. This loss usually occurs before the energy is transferred to the luminescent center. Through the non-radiative energy transfer or quenching process with the surrounding medium, the coating layer 222 can isolate the direct contact between the phosphor particles 221 and the adhesive liquid 21, thereby reducing unnecessary energy consumption; etc.; The adhesive liquid 21 is a resin adhesive (the resin adhesive may be a transparent epoxy resin or acrylic resin, etc. The light-emitting layer 2 formed after the resin is mixed with the light-emitting particles 22 has strong stability and can also improve the distribution uniformity of the particles and enhance the overall light uniformity); Alternatively, the adhesive liquid 21 is formed by uniformly mixing a transparent resin adhesive, a dispersant and a photosensitizer {the dispersant may be a non-ionic dispersant, such as polyoxyethylene alcohol (PEO), polyethylene glycol (PEG), etc.}, (the photosensitizer may be a transition metal complex such as ruthenium or osmium, etc.); Added dispersant: to make the luminescent particles 22 more evenly dispersed in the resin medium, avoid agglomeration, and help reduce the interaction force between particles, so that the mixture is more stable, the nozzle is not easily blocked when spraying the mixed solution, and the coating is smoother; Added photosensitizer: Adding a certain amount of photosensitizer can improve the light absorption efficiency of the luminescent particles 22, thereby enhancing its light storage and luminescence performance. Embodiment 2:

[0013] like Figure 1 As shown, the difference from Example 1 is that it also includes a protective layer 4 fixedly arranged outside the inkjet layer 3, that is, a protective layer 4 is covered on the top of the substrate layer 1, the luminescent layer 2 and the inkjet layer 3 (the protective layer 4 can be set by spraying or coating, etc.), covering the luminescent layer 2 and the inkjet layer 3 to improve the protectiveness, so that the luminescent film made in this way has a long durability.

[0014] Wherein, the protective layer 4 is a transparent UV curing resin layer or a polyurethane varnish layer, etc. (the polyurethane varnish or UV curing resin has the effects of high transparency, wear resistance, scratch resistance, waterproof and UV protection, environmental protection and non-toxicity, and good adhesion, thereby improving the service life after use); Alternatively, the protective layer 4 is a second mixed layer formed by uniformly mixing a UV curing resin or polyurethane varnish with a cross-linking agent (the cross-linking agent may be triacetone acrylamide or glycidyl acrylate, etc.), which can enhance the mesh structure of the protective layer 4, improve its overall physical strength and chemical stability, and improve wear resistance, scratch resistance and adhesion.

[0015] In addition, the process of precipitation coating (prior art) is as follows: 1) Preprocessing Solution materials: Ultrasonic cleaning usually uses deionized water as the solvent, and sometimes a small amount of inorganic acid or alkali is added to help remove specific types of impurities depending on the properties of the phosphor. When magnetic stirring, the solvent may be deionized water, ethanol or other organic solvents compatible with the phosphor; The equipment can be: Ultrasonic cleaners are used to remove impurities from the surface of particles using the strong vibrations generated by ultrasound; A magnetic stirrer, used in conjunction with a heating plate, is used to evenly stir the solution in the container to help disperse the phosphor particles.

[0016] 2) Solution preparation Solution materials: Coating material precursors, such as tetraethyl orthosilicate (TEOS) for silicon dioxide (SiO2) coating, and others may include metal alkoxides, etc., depending on the coating material you want to form; Solvents, usually water or alcohols, and necessary buffers to control pH; Catalysts, such as ammonia, are used to adjust the hydrolysis rate of TEOS, or acid-base regulators are used to control the reaction conditions; equipment: Electronic balance, accurately weighing various chemical reagents; Magnetic stirrer and heating plate, used for uniform mixing of solutions and control of reaction temperature; pH meter, accurately measures and controls the pH value of the solution.

[0017] 3) Mixing and reaction equipment: A burette / pipette, used to slowly and precisely add the phosphor suspension to the coating solution; Thermostatic stirrer continuously stirs at a specific temperature to ensure uniform coating reaction.

[0018] 4) Separation and cleaning equipment: A centrifuge is used to quickly separate the coated phosphor particles; Filtration devices, such as vacuum filtration devices, to assist separation; A cleaning container for storing deionized water or ethanol for washing; Ultrasonic cleaner (optional) can further improve the cleaning effect.

[0019] 5) Drying and heat treatment equipment: An oven is used to dry the phosphor particles at a set temperature to remove moisture; Tube furnace / muffle furnace provides a higher temperature environment for heat treatment to enhance the density of the coating layer and the stability of the phosphor.

[0020] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0021] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An energy storage type advertising inkjet luminous film, comprising a substrate layer (1) and a luminous layer (2) and an inkjet layer (3) fixedly disposed on one end of the substrate layer; The luminescent layer (2) is a first mixed layer formed by uniformly mixing an adhesive liquid (21) and a plurality of groups of luminescent particles (22); It is characterized in that The luminescent particle (22) comprises a phosphor particle (221) and a coating layer (222) fixedly arranged outside the particle, wherein the coating layer (222) is a silicon dioxide layer.

2. The energy storage advertising inkjet luminous film according to claim 1, characterized in that: The material of the substrate layer (1) is PVC.

3. The energy storage advertising inkjet luminous film according to claim 2, characterized in that: The adhesive liquid (21) is a resin adhesive.

4. The energy storage type advertising inkjet luminous film according to claim 2, characterized in that: The adhesive liquid (21) is formed by uniformly mixing a resin adhesive, a dispersant and a photosensitizer.

5. The energy storage type advertising inkjet luminous film according to claim 3 or 4, characterized in that: It also includes a protective layer (4) fixedly arranged outside the inkjet layer (3).

6. The energy storage type advertising inkjet luminous film according to claim 5, characterized in that: The protective layer (4) is a UV curing resin layer or a polyurethane varnish layer.

7. The energy storage advertising inkjet luminous film according to claim 5, characterized in that: The protective layer (4) is a second mixed layer formed by uniformly mixing UV curing resin or polyurethane varnish and a cross-linking agent.

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