Aerogel heat transfer film

Abstract

This utility model discloses an aerogel heat transfer film, relating to the field of heat transfer film technology. It comprises a substrate layer, an aerogel heat insulation layer, a pattern transfer layer, a composite adhesive layer, and a centrifugal membrane layer stacked sequentially. A moisture-proof layer is provided between the aerogel heat insulation layer and the pattern transfer layer. By providing a moisture-proof layer between the aerogel heat insulation layer and the pattern transfer layer, external moisture erosion can be effectively blocked, ensuring the dryness and stability of the core functional layer. The composite adhesive layer is a flame-retardant epoxy resin adhesive layer, and an antibacterial agent, specifically a silver ion antibacterial agent, is uniformly dispersed within the composite adhesive layer. The aerogel heat insulation layer is a composite film made of hydrophobic silica aerogel powder and a polymer resin. Both the composite adhesive layer and the aerogel heat insulation layer contain uniformly distributed moisture-proof agents, providing efficient heat insulation, moisture protection, and antibacterial properties.

Description

Technical Field

[0001] This utility model relates to the field of thermal transfer film technology, specifically to an aerogel thermal transfer film. Background Technology

[0002] Heat transfer film, a composite material widely used for surface decoration and protection, mainly transfers pre-printed patterns onto various substrates through hot pressing. This type of material plays a vital role in the packaging industry, textile printing, electronic product casing beautification, and daily consumer goods, not only giving products an exquisite appearance and brand identity but also providing basic protective functions such as wear resistance and weather resistance. Traditional heat transfer film structures typically consist of a substrate, release layer, pattern layer, and adhesive layer. Its development focuses primarily on improving the printing accuracy, transfer clarity, and color durability of the patterns. However, with the continuous expansion of application scenarios and the increasing market demand, existing thermal transfer film technology has shown certain limitations. Especially in some fields with higher functional requirements, such as products that need to be stored or used in a humid environment for a long time, or items that are sensitive to temperature changes and require additional thermal insulation protection, traditional structures often cannot meet the needs. Existing technologies mostly focus on decoration, and their functions are relatively simple, lacking active functional protection for the substrate, such as effective thermal insulation barriers or durable moisture-proof sealing capabilities. This leads to the possibility that the internal substrate of products decorated with such materials may be damaged due to temperature fluctuations or moisture erosion in complex usage environments, affecting the overall performance and service life of the products. To address this, we propose an aerogel thermal transfer film. Utility Model Content

[0003] The technical problem to be solved by this invention is to overcome the existing defects and provide an aerogel thermal transfer film that can provide efficient heat insulation, moisture protection and antibacterial properties, and can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an aerogel thermal transfer film, comprising a substrate layer, an aerogel heat insulation layer, a pattern transfer layer, a composite adhesive layer, and a release layer stacked sequentially. A moisture-proof layer is provided between the aerogel heat insulation layer and the pattern transfer layer. By providing a moisture-proof layer between the aerogel heat insulation layer and the pattern transfer layer, external moisture erosion can be effectively blocked, ensuring the dryness and stability of the core functional layer.

[0005] Furthermore, the composite adhesive layer is a flame-retardant epoxy resin adhesive layer, and an antibacterial agent, specifically a silver ion antibacterial agent, is uniformly dispersed inside the composite adhesive layer. By uniformly dispersing the silver ion antibacterial agent inside the composite adhesive layer, the transferred surface can obtain a durable and safe antibacterial and bacteriostatic function.

[0006] Furthermore, the aerogel insulation layer is a composite film made of hydrophobic silica aerogel powder and polymer resin. By using hydrophobic silica aerogel powder and polymer resin to make the aerogel insulation layer, the overall moisture resistance can be improved by utilizing the hydrophobicity of the material itself while achieving efficient heat insulation.

[0007] Furthermore, both the composite adhesive layer and the aerogel insulation layer are provided with uniformly distributed moisture-proofing agents, which are moisture-absorbing silica gel particles. By providing moisture-proofing agents in both the composite adhesive layer and the aerogel insulation layer, an active moisture-absorbing internal environment can be constructed, which works in conjunction with the moisture-proofing layer to achieve three-dimensional protection.

[0008] Furthermore, the substrate layer is a polyethylene terephthalate film, the release layer is a release agent coating, and the pattern transfer layer is formed by gravure printing. By using polyethylene terephthalate film as the substrate layer and combining it with gravure printing technology, the dimensional stability and exquisite pattern of the heat transfer process can be ensured.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: This aerogel thermal transfer film has the following advantages: Through the synergistic effect of the aerogel insulation layer and the moisture-proof layer, the product's heat insulation performance and moisture-proof capability are significantly improved, effectively resisting the erosion of heat and moisture in the external environment, ensuring the stability of the substrate under complex usage conditions, thereby extending the product's service life and reliability; at the same time, the film integrates an antibacterial adhesive layer, which can give the transfer surface a lasting antibacterial and bacteriostatic function. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the moisture-proof layer structure of this utility model.

[0011] In the diagram: 1. Substrate layer, 2. Aerogel insulation layer, 3. Pattern transfer layer, 4. Composite adhesive layer, 5. Release layer, 6. Moisture-proof layer. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Please see Figure 1-2This embodiment provides a technical solution: an aerogel thermal transfer film, comprising a substrate layer 1, an aerogel heat insulation layer 2, a pattern transfer layer 3, a composite adhesive layer 4, and a release layer 5 stacked sequentially. A moisture-proof layer 6 is provided between the aerogel heat insulation layer 2 and the pattern transfer layer 3. By providing a moisture-proof layer 6 between the aerogel heat insulation layer 2 and the pattern transfer layer 3, external moisture erosion can be effectively blocked, ensuring the dryness and stability of the core functional layer.

[0014] Among them: the composite adhesive layer 4 is a flame-retardant epoxy resin adhesive layer, and an antibacterial agent is uniformly dispersed inside the composite adhesive layer 4. The antibacterial agent is a silver ion antibacterial agent. By uniformly dispersing the silver ion antibacterial agent inside the composite adhesive layer 4, the surface after transfer can obtain a long-lasting and safe antibacterial and bacteriostatic function.

[0015] Among them, the aerogel insulation layer 2 is a composite film made of hydrophobic silica aerogel powder and polymer resin. By using hydrophobic silica aerogel powder and polymer resin to make the aerogel insulation layer 2, it is possible to achieve efficient heat insulation while improving the overall moisture resistance by utilizing the hydrophobicity of the material itself.

[0016] The composite adhesive layer 4 and the aerogel insulation layer 2 are both equipped with uniformly distributed moisture-proof agents, which are moisture-absorbing silica gel particles. By setting moisture-proof agents inside both the composite adhesive layer 4 and the aerogel insulation layer 2, an active moisture-absorbing internal environment can be constructed, which works in conjunction with the moisture-proof layer 6 to achieve three-dimensional protection.

[0017] Among them: the substrate layer 1 is a polyethylene terephthalate film, the release layer 5 is a release agent coating, and the pattern transfer layer 3 is formed by gravure printing. By using polyethylene terephthalate film as the substrate layer 1 and combining it with gravure printing process, the dimensional stability and exquisite pattern of the heat transfer process can be ensured.

[0018] The working principle of the aerogel thermal transfer film provided by this utility model is as follows: During the thermal transfer process, the aerogel thermal transfer film is subjected to heat and pressure by a hot-pressing device, which activates the composite adhesive layer 4 and generates adhesion, thereby firmly adhering the pattern transfer layer 3 to the surface of the target substrate. At the same time, the release layer 5 is peeled off. During this process, the substrate layer 1 acts as a support layer to ensure that the film maintains dimensional stability and flatness during the transfer. The aerogel heat insulation layer 2 is made of hydrophobic silica aerogel powder mixed with polymer resin, which can effectively isolate heat transfer, reduce the impact of temperature fluctuations on the substrate, and provide continuous heat insulation protection. The moisture barrier 6 between the heat transfer layer 2 and the pattern transfer layer 3 blocks external moisture from entering and prevents water molecules from penetrating into the core functional layer, ensuring the dryness and stability of the aerogel insulation layer 2. In addition, the silver ion antibacterial agent uniformly dispersed inside the composite adhesive layer 4 imparts a lasting antibacterial and bacteriostatic function to the surface after transfer, inhibiting the growth of microorganisms. At the same time, the moisture-absorbing silica particles uniformly distributed inside the composite adhesive layer 4 and the aerogel insulation layer 2 act as moisture-proof agents, actively absorbing residual moisture or possible moisture intrusion, and working together with the moisture barrier 6 to form a multi-layer moisture barrier, forming a three-dimensional protection system to ensure that the heat transfer film can work reliably for a long time in humid or temperature-changing environments.

[0019] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An aerogel thermal transfer film, characterized in that: The material includes a substrate layer (1), an aerogel insulation layer (2), a pattern transfer layer (3), a composite adhesive layer (4), and a release layer (5) stacked in sequence. A moisture-proof layer (6) is provided between the aerogel insulation layer (2) and the pattern transfer layer (3). A uniformly distributed moisture-proof agent is provided inside the composite adhesive layer (4) and the aerogel insulation layer (2).

2. The aerogel thermal transfer film according to claim 1, characterized in that: The composite adhesive layer (4) is a flame-retardant epoxy resin adhesive layer, and an antibacterial agent is uniformly dispersed inside the composite adhesive layer (4). The antibacterial agent is a silver ion antibacterial agent.

3. The aerogel thermal transfer film according to claim 1, characterized in that: The substrate layer (1) is a polyethylene terephthalate film, the release layer (5) is a release agent coating, and the pattern transfer layer (3) is formed by gravure printing.

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