Anti-wrinkling structure of multilayer reflective thermal insulation film

Abstract

The utility model relates to the field of heat insulation film discloses a kind of anti-wrinkling structure of multilayer reflective heat insulation film, including viscose layer, the upside of viscose layer is provided with high-transparency base material layer, the upside of high-transparency base material layer is provided with metal reflecting layer, the upside of metal reflecting layer is provided with wear-resistant protective layer, the bottom of viscose layer is provided with saw-like strip, elastic glue layer is provided between metal reflecting layer and wear-resistant protective layer, the thickness of viscose layer is between 50-100 μm, the thickness of high-transparency base material layer is between 23-50 μm.In the utility model, by wear-resistant protective layer with the stability structure and the anti-scratching and anti-erosion ability of 50-100 μm thickness, prevent the local wrinkle after film body surface is damaged, saw-like strip is positioned and fixed to film body when installing, avoid edge uneven stress causes wrinkle, and elastic glue layer is then with the thickness of 10-30 μm by elastic deformation absorption stress, prevent film body from appearing wrinkle due to stress concentration.

Description

Technical Field

[0001] This utility model relates to the field of heat insulation film, and in particular to an anti-wrinkle structure for a multilayer reflective heat insulation film. Background Technology

[0002] The anti-wrinkle structure of multi-layer reflective heat insulation film refers to an auxiliary structural system, in addition to the basic functional layers (including heat insulation, light transmission, and wear resistance layers) of the multi-layer reflective heat insulation film, through specific structural design or layer optimization, used to suppress wrinkles caused by external forces, temperature changes, and differences in interlayer compatibility during the production, transportation, installation, and long-term use of the film. Its core objective is to maintain the flatness and structural stability of the film while ensuring the original heat insulation, sun protection, and light transmission performance of the heat insulation film, and to ensure that the film does not wrinkle or deform after being bonded to the carrier (such as glass) for a long time, thus avoiding the impact of wrinkles on the performance and service life.

[0003] Existing multi-layer reflective heat insulation films do not have anti-wrinkle function in their structural design. During installation and long-term use, wrinkles are prone to occur due to thermal expansion and contraction of the film caused by temperature changes, uneven tension during installation, or slight external pulling, which affects light transmission and heat insulation effect. Therefore, a multi-layer reflective heat insulation film with optimized structure and anti-wrinkle function is needed to solve the above problems. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides an anti-wrinkle structure for a multi-layer reflective heat insulation film, aiming to solve the problem in the prior art that "wrinkles are easy to occur due to thermal expansion and contraction of the film caused by temperature changes, uneven tension during installation, or slight external pulling."

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a wrinkle-resistant structure for a multi-layer reflective heat insulation film, comprising an adhesive layer, a high-transparency substrate layer disposed on the upper side of the adhesive layer, a metal reflective layer disposed on the upper side of the high-transparency substrate layer, a wear-resistant protective layer disposed on the upper side of the metal reflective layer, a saw-shaped strip disposed on the bottom of the adhesive layer, and an elastic adhesive layer disposed between the metal reflective layer and the wear-resistant protective layer.

[0006] As a further description of the above technical solution: the thickness of the adhesive layer is between 50-100μm.

[0007] As a further description of the above technical solution: the thickness ratio of the high-transparency substrate layer is between 23-50μm.

[0008] As a further description of the above technical solution: the thickness ratio of the metal reflective layer is between 0.008 and 0.015.

[0009] As a further description of the above technical solution: the thickness of the wear-resistant protective layer is between 50-100μm.

[0010] As a further description of the above technical solution: the thickness of the elastic adhesive layer is between 10-30 μm.

[0011] This utility model has the following beneficial effects:

[0012] 1. In this utility model, the wear-resistant protective layer, with its stable structure and 50-100μm thickness, provides scratch and corrosion resistance, preventing local wrinkles from appearing on the membrane surface after damage. The saw-shaped strip positions and fixes the membrane during installation, preventing wrinkles from appearing at the edges due to uneven stress. The elastic adhesive layer, with a thickness of 10-30μm, absorbs stress through elastic deformation, preventing wrinkles from appearing on the membrane due to stress concentration.

[0013] 2. In this utility model, the adhesive layer, with its excellent adhesion, tightly bonds the film to the glass. At the same time, the thickness of 50-100μm balances adhesion and resistance to high and low temperatures, reducing wrinkles caused by bonding gaps and temperature changes. The high-transparency substrate layer, with its good tensile strength and toughness, combined with the structural stability ensured by its 23-50μm thickness, reduces wrinkles through deformation recovery when subjected to temperature changes or external force. The metal reflective layer, with its extremely thin and uniform coating of 0.008-0.015μm, achieves both efficient heat insulation and sun protection, and ensures uniform stress on the film. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the anti-wrinkle structure of a multi-layer reflective heat insulation film proposed in this utility model.

[0015] Figure 2 This is a schematic diagram of the bottom structure of an anti-wrinkle structure for a multi-layer reflective heat insulation film proposed in this utility model.

[0016] Figure 3 This utility model proposes an anti-wrinkle structure for a multi-layer reflective heat insulation film. Figure 1 A magnified structural diagram of A in the middle.

[0017] Legend:

[0018] 1. Adhesive layer; 2. High-transparency substrate layer; 3. Metal reflective layer; 4. Wear-resistant protective layer; 5. Saw-shaped strip; 6. Elastic adhesive layer. Detailed Implementation

[0019] 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.

[0020] Reference Figures 1-3 This utility model provides an embodiment of a multi-layer reflective heat insulation film with an anti-wrinkle structure, comprising an adhesive layer 1, which can tightly adhere the film to the glass through excellent adhesion, reducing wrinkles caused by gaps in the adhesion; a high-transparency substrate layer 2 is provided on the upper side of the adhesive layer 1, which, with its good tensile strength and toughness, can reduce wrinkles by deforming and recovering when temperature changes or external force is applied; a metal reflective layer 3 is provided on the upper side of the high-transparency substrate layer 2, whose uniform coating structure ensures uniform stress on the film and avoids wrinkles caused by uneven local shrinkage; a wear-resistant protective layer 4 is provided on the upper side of the metal reflective layer 3, whose stable structure can prevent local wrinkles after damage to the film surface; a saw-shaped strip 5 is provided at the bottom of the adhesive layer 1, which can position and fix the film during installation, preventing wrinkles caused by uneven stress at the edges; and an elastic adhesive is provided between the metal reflective layer 3 and the wear-resistant protective layer 4. Layer 6 consists of an elastic adhesive layer that absorbs stress through elastic deformation, preventing wrinkles caused by stress concentration. The thickness of the adhesive layer 1 is between 50-100 μm, ensuring both adhesion and resistance to high and low temperatures, thus guaranteeing stable adhesion and preventing wrinkles. The thickness of the high-transparency substrate layer 2 is between 23-50 μm, ensuring structural stability while also providing deformation recovery and wrinkle prevention. The thickness of the metal reflective layer 3 is between 0.008-0.015 μm, achieving efficient heat insulation and sun protection without wrinkling due to uneven thickness. The thickness of the wear-resistant protective layer 4 is between 50-100 μm, effectively resisting scratches and corrosion, maintaining structural stability, and preventing wrinkles. The thickness of the elastic adhesive layer 6 is between 10-30 μm, providing effective buffering and stress absorption, further contributing to wrinkle prevention.

[0021] Working Principle: This multi-layer reflective heat insulation film comprises, from bottom to top, an adhesive layer 1, a high-transparency substrate layer 2, a metal reflective layer 3, an elastic adhesive layer 6, and a wear-resistant protective layer 4. It also includes saw-shaped strips 5 positioned along the edge of the film. The anti-wrinkle structure is primarily achieved through the material properties of the high-transparency substrate layer 2, the buffering effect of the elastic adhesive layer 6, and the positioning and fixing effect of the saw-shaped strips 5. The adhesive layer 1 uses acrylic pressure-sensitive adhesive with a thickness of 50-100μm, used to firmly adhere the film to the glass surface. Its high and low temperature resistance ensures stable operation in environments ranging from -40℃ to 80℃, preventing wrinkles caused by softening or embrittlement of the adhesive layer due to temperature changes. Simultaneously, this adhesive layer 1 has good adhesion, reducing gaps between the film and glass caused by poor adhesion, thus minimizing wrinkles. The high-transparency substrate layer 2 uses optical-grade polyester film with a thickness of 23-50μm, possessing excellent tensile strength and toughness. When temperature changes cause thermal expansion and contraction or slight external stretching, the membrane can reduce wrinkles through its own deformation recovery ability. Furthermore, this substrate layer serves as the carrier for each functional layer, ensuring the stability of each layer structure and preventing localized deformation and wrinkling due to interlayer instability. The metal reflective layer 3 uses vacuum-sputtered rare metals (such as silver and nickel) with a thickness of 0.008-0.015 μm, primarily used to reflect infrared and ultraviolet rays from solar radiation, achieving heat insulation and sun protection functions. Its uniform coating structure ensures uniform stress on the membrane, reducing wrinkles caused by coating deformation. The uneven layering causes uneven local shrinkage of the membrane, resulting in wrinkles. The elastic adhesive layer 6, made of modified acrylate elastomer or polyurethane elastic resin with a thickness of 10-30 μm, is placed between the metal reflective layer 3 and the wear-resistant protective layer 4. It not only buffers impacts and reduces the risk of breakage of the metal reflective layer 3 due to vibration or glass deformation, but also absorbs stress through its own elastic deformation when the membrane is subjected to external forces or temperature changes, preventing wrinkles caused by stress concentration. The wear-resistant protective layer 4 is made of silicon dioxide or silicon nitride coating with a thickness of 5 μm. 0-100μm, used to protect the surface of the membrane and resist daily scratches and external environmental erosion. Its stable structure can prevent local wrinkles caused by damage to the membrane surface; the saw-shaped strip 5 is made of elastic rubber or modified plastic and is set at the edge of the membrane. During installation, it can flexibly fit the shape of the glass edge, fill the installation gap, and play a role in positioning and fixing the membrane. It can prevent wrinkles from appearing at the edge of the membrane due to inaccurate positioning or uneven force during installation. At the same time, it can block rainwater from seeping in from the gap between the membrane and the glass and prevent the adhesive layer 1 from getting damp and aging, which can cause the membrane to fall off or wrinkle.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Anti-wrinkling structure of a multilayer reflective thermal insulation film comprising an adhesive layer (1), characterized in that: A high-transparency substrate layer (2) is provided on the upper side of the adhesive layer (1), a metal reflective layer (3) is provided on the upper side of the high-transparency substrate layer (2), a wear-resistant protective layer (4) is provided on the upper side of the metal reflective layer (3), a saw-shaped strip (5) is provided at the bottom of the adhesive layer (1), and an elastic adhesive layer (6) is provided between the metal reflective layer (3) and the wear-resistant protective layer (4).

2. The anti-wrinkling structure of a multi-layer reflective thermal insulation film according to claim 1, characterized in that: The thickness of the adhesive layer (1) is between 50-100 μm.

3. The anti-wrinkling structure of a multi-layer reflective thermal insulation film according to claim 1, characterized in that: The thickness ratio of the high-transparency substrate layer (2) is between 23-50 μm.

4. The anti-wrinkling structure of a multi-layer reflective thermal insulation film according to claim 1, characterized in that: The thickness ratio of the metal reflective layer (3) is between 0.008 and 0.

015.

5. The anti-wrinkle structure of a multi-layer reflective thermal insulation film according to claim 1, characterized in that: The thickness of the wear-resistant protective layer (4) is between 50-100 μm.

6. The anti-wrinkle structure of a multi-layer reflective thermal insulation film according to claim 1, characterized in that: The thickness of the elastic adhesive layer (6) is between 10-30 μm.

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