Heat balance fabric based on heat reflection-air layer cooperation

Abstract

The utility model relates to the technical field of fabric, especially based on heat reflection - air layer cooperation's heat balance fabric, including first base layer and second base layer, first base layer and second base layer between having air heat insulation layer, first base layer is arranged with first reflection layer on the side away from second base layer, second base layer is arranged with second reflection layer on the side away from first base layer, through setting inside and outside first reflection layer and second reflection layer, can high -efficiently reflect the radiant heat from external environment and human body's own, the air heat insulation layer of intermediate independence utilizes the extremely low thermal conductivity of air, effectively blocked the convection conduction of heat, and first reflection layer, air heat insulation layer and second reflection layer formed the heat shield.

Description

Technical Field

[0001] This utility model relates to the field of fabric technology, and in particular to a thermal balance fabric based on heat reflection-air layer synergy. Background Technology

[0002] With technological advancements and improved living standards, the demand for specialty functional fabrics, especially heat-insulating and thermal-retaining fabrics, is growing daily. These fabrics are widely used in outdoor clothing, protective equipment, tents, building shading, and industrial insulation.

[0003] Existing thermal insulation fabrics mainly rely on two technical approaches: one is to use a heat-reflective layer (such as an aluminized film) to reflect radiant heat back, and the other is to use low thermal conductivity materials (such as foam, wadding) or a still air layer to block heat conduction. However, a single technical approach has obvious limitations: the reflective effect of a simple heat-reflective fabric is greatly reduced when it is in direct contact with a heat source or subjected to external pressure, and its thermal insulation capacity has an upper limit; while simple air layer or foam material insulation is difficult to effectively block strong radiant heat (such as summer sunlight), and has problems such as being heavy, not breathable, or having poor durability. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in order to overcome the fact that the reflective effect of the simple heat-reflective fabric in the prior art is greatly reduced when it is in direct contact with the heat source or subjected to external pressure, and its heat insulation capacity has an upper limit; while the heat insulation of simple air layer or foam material is difficult to effectively block strong radiant heat (such as summer sun), and has the problems of being heavy, not breathable or having poor durability, a heat balance fabric based on the synergy of heat reflection and air layer is provided.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a heat balance fabric based on heat reflection-air layer synergy, including a first base layer and a second base layer, with an air insulation layer between the first base layer and the second base layer, a first reflective layer arranged on the side of the first base layer away from the second base layer, and a second reflective layer arranged on the side of the second base layer away from the first base layer. By setting the inner and outer first reflective layers and second reflective layers, it can efficiently reflect radiant heat from the external environment and the human body itself. The independent air insulation layer in the middle utilizes the extremely low thermal conductivity of air to effectively block the convection and conduction of heat. The first reflective layer, the air insulation layer and the second reflective layer form a heat insulation barrier.

[0006] To address the issue of how to stably construct and maintain an effective air insulation layer between the first and second base layers while ensuring a strong connection between the two layers, the air insulation layer further includes an adhesive, with the first and second base layers connected by the adhesive, and air gaps formed between the adhesive layers.

[0007] To address the issue of optimizing the structure of the air insulation layer so that it does not easily collapse under pressure, the method further includes applying an adhesive in a linear coating manner between the first and second base layers to form a honeycomb structure, with the air gaps confined within the honeycomb structure.

[0008] To address the issue of optimizing the structure of the air insulation layer to prevent it from collapsing completely under pressure, the method further includes applying adhesive in a dotted film manner between the first and second base layers, with air gaps formed between the adhesive layers.

[0009] To address the issue of how to further enhance the thermal insulation capacity of the air insulation layer, the adhesive further includes a number of air bubbles within it.

[0010] To address the issue of how to protect the fragile first and second reflective layers from damage due to direct exposure, thereby ensuring the long-term heat insulation performance of the fabric, a further method is proposed: a first protective layer is arranged on the other side of the first reflective layer, and a second protective layer is arranged on the other side of the second reflective layer.

[0011] To address the issue of selecting specific materials to achieve lightweight fabric, the first base layer, second base layer, first protective layer, and second protective layer are all PET layers.

[0012] Furthermore, both the first and second reflective layers are aluminum-plated film layers.

[0013] The beneficial effects of this utility model are: This utility model provides a heat balance fabric based on heat reflection-air layer synergy. By setting inner and outer first reflective layers and second reflective layers, it can efficiently reflect radiant heat from the external environment and the human body itself. The independent air insulation layer in the middle utilizes the extremely low thermal conductivity of air to effectively block the convection and conduction of heat. The first reflective layer, the air insulation layer and the second reflective layer form a heat insulation barrier. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model; Figure 4 This is a cross-sectional structural schematic diagram of Embodiment 2 of this utility model; Figure 5 This is a schematic diagram of the structure of the adhesive of this utility model that does not contain air bubbles; Figure 6This is a cross-sectional structural diagram of the present invention (the dotted adhesive is unevenly distributed).

[0016] In the diagram: 1. First base layer, 2. Second base layer, 3. Air insulation layer, 31. Adhesive, 32. Air gap, 33. Air bubble, 4. First reflective layer, 5. Second reflective layer, 6. First protective layer, 7. Second protective layer. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention. Example 1:

[0018] like Figure 1 This is a schematic diagram of the structure of this utility model. A heat balance fabric based on heat reflection-air layer synergy includes a first base layer 1 and a second base layer 2. An air insulation layer 3 is provided between the first base layer 1 and the second base layer 2. A first reflective layer 4 is arranged on the side of the first base layer 1 away from the second base layer 2, and a second reflective layer 5 is arranged on the side of the second base layer 2 away from the first base layer 1. By setting the inner and outer first reflective layers 4 and second reflective layers 5, it can efficiently reflect radiant heat from the external environment and the human body itself. The independent air insulation layer 3 in the middle utilizes the extremely low thermal conductivity of air to effectively block the convection and conduction of heat. The first reflective layer 4, the air insulation layer 3 and the second reflective layer 5 form a heat insulation barrier.

[0019] like Figure 1 , 2 As shown, the air insulation layer 3 includes an adhesive 31. The first base layer 1 and the second base layer 2 are connected by the adhesive 31, and an air gap 32 is formed between the adhesive 31. The adhesive 31 achieves a reliable connection between the first base layer 1 and the second base layer 2 and forms a structured air gap 32, so that the air insulation layer 3 has a stable solid structure.

[0020] A first protective layer 6 is arranged on the other side of the first reflective layer 4, and a second protective layer 7 is arranged on the other side of the second reflective layer 5. By adding the first protective layer 6 and the second protective layer 7, the wear resistance and corrosion resistance of the first reflective layer 4 and the second reflective layer 5 are greatly improved, ensuring the stability of the heat insulation performance of the fabric during its service life and improving the reliability of the product.

[0021] The first base layer 1, the second base layer 2, the first protective layer 6, and the second protective layer 7 are all PET layers. PET material has the advantages of high strength, light weight, low cost, and good chemical resistance. PET material can be replaced with EVA material (improved weather resistance, suitable for high temperature and high humidity environments).

[0022] The first protective layer 6 and the first reflective layer 4 are connected by uniformly applied adhesive, the first base layer 1 and the first reflective layer 4 are connected by uniformly applied adhesive, the second reflective layer 5 and the second base layer 2 are connected by uniformly applied adhesive, and the second protective layer 7 and the second reflective layer 5 are connected by uniformly applied adhesive.

[0023] The thickness of the first base layer 1 and the thickness of the second base layer 2 can be 8-15 μm, with a light transmittance ≥92% and a haze <1%; the thickness of the first reflective layer 4 and the thickness of the second reflective layer 5 can be 300-600 Å (angstroms); the thickness of the first protective layer 6 and the thickness of the second protective layer 7 can be 8-12 μm, with a light transmittance ≥92% and a haze <1%.

[0024] The first reflective layer 4 and the second reflective layer 5 are both aluminum-plated film layers. They are formed on the surface of the first base layer 1 or the second base layer 2 using a magnetron sputtering vacuum coating machine with 99.999% pure metallic aluminum as the target material.

[0025] like Figure 1 , 2 As shown, adhesive 31 is applied linearly between the first base layer 1 and the second base layer 2 to form a honeycomb structure. Air gaps 32 are confined within the honeycomb structure. The first base layer 1 and the second base layer 2 are connected in a honeycomb pattern by adhesive, forming a strong overall structure while creating stable and uniformly distributed closed air gaps. This structure avoids the bulkiness of traditional wadding or foam materials, making the fabric lighter and softer. At the same time, it ensures that the air layer will not fail due to compression or deformation during use. The honeycomb structure divides the air gaps 32 into numerous independent units, significantly improving structural stability and compressive strength, and ensuring the uniformity and durability of thermal insulation performance.

[0026] Working process: When external heat (such as solar radiation) shines on the fabric, it first encounters the first protective layer 6, and then the adjacent first reflective layer 4 efficiently reflects most of the radiant heat back, preventing a large amount of heat from entering. The residual heat that penetrates the first reflective layer 4 continues to be conducted to the first base layer 1, and then enters the air insulation layer 3. In this layer, the closed air gap 32 greatly hinders the further conduction and convection of heat, so that the heat is effectively blocked and dissipated here. Some of the residual heat is reflected a second time in the air insulation layer 3: the first base layer 1 and the second base layer 2 above and below the air insulation layer 3 reflect some of the radiant heat back into the air gap or outward, thus enhancing the heat insulation effect. The small amount of heat that eventually reaches the inside of the fabric will be reflected back by the second reflective layer 5, preventing heat from being lost outward or transferred inward. The outer second protective layer 7 protects the inner second reflective layer 5 from damage. Example 2:

[0027] The technical features that distinguish Example 2 from Example 1 are: the structure of the adhesive 31 and the structure of the air gap 32 formed therefrom.

[0028] like Figure 2 , 3 As shown, adhesive 31 is applied in a dotted coating manner between the first base layer 1 and the second base layer 2. The adhesive 31 is evenly distributed, and air gaps 32 are formed between the adhesive 31. The dotted coating method can also form stable air gaps, and the process may be simpler and cheaper, while maintaining the softness of the fabric.

[0029] like Figure 6 As shown, the adhesive 31 is applied in a dotted film manner between the first base layer 1 and the second base layer 2, and the adhesive 31 is unevenly distributed. Example 3:

[0030] The technical feature that distinguishes Example 3 from Example 1 is whether the adhesive 31 contains air bubbles 33.

[0031] like Figure 5 As shown, the adhesive 31 contains a number of air bubbles 33. The microbubbles inside the adhesive 31 themselves become additional, microscopic air insulation units, further reducing the thermal conductivity of the adhesive itself, thereby improving the overall heat insulation performance of the air insulation layer 3.

[0032] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A thermal balance fabric based on heat reflection-air layer synergy, characterized in that, It includes a first base layer (1) and a second base layer (2), with an air insulation layer (3) between the first base layer (1) and the second base layer (2), a first reflective layer (4) is arranged on the side of the first base layer (1) away from the second base layer (2), and a second reflective layer (5) is arranged on the side of the second base layer (2) away from the first base layer (1).

2. The thermal balance fabric based on heat reflection-air layer synergy as described in claim 1, characterized in that: The air insulation layer (3) includes an adhesive (31), and the first base layer (1) and the second base layer (2) are connected by the adhesive (31), and an air gap (32) is formed between the adhesives (31).

3. The thermal balance fabric based on heat reflection-air layer synergy as described in claim 2, characterized in that: The adhesive (31) is applied in a linear coating manner between the first base layer (1) and the second base layer (2) to form a honeycomb structure, and the air gap (32) is confined within the honeycomb structure.

4. The thermal balance fabric based on heat reflection-air layer synergy as described in claim 2, characterized in that: The adhesive (31) is applied in a dotted film manner between the first base layer (1) and the second base layer (2), and air gaps (32) are formed between the adhesives (31).

5. The thermal balance fabric based on heat reflection-air layer synergy as described in claim 4, characterized in that: The adhesive (31) contains several air bubbles (33).

6. The thermal balance fabric based on heat reflection-air layer synergy as described in claim 1, characterized in that: A first protective layer (6) is arranged on the other side of the first reflective layer (4), and a second protective layer (7) is arranged on the other side of the second reflective layer (5).

7. The thermal balance fabric based on heat reflection-air layer synergy as described in claim 6, characterized in that: The first base layer (1), the second base layer (2), the first protective layer (6), and the second protective layer (7) are all PET layers.

8. The thermal balance fabric based on heat reflection-air layer synergy as described in claim 1, characterized in that: Both the first reflective layer (4) and the second reflective layer (5) are aluminum-plated film layers.

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