A fabric and a method for making the same

Abstract

This invention provides a fabric and its preparation method. The fabric comprises a black adhesive base fabric composite layer, a first silver adhesive layer, a black adhesive layer, and a second silver adhesive layer, which are sequentially stacked. The black adhesive base fabric composite layer has a porous structure and includes a base fabric layer and at least one black adhesive layer, with the base fabric layer and the first silver adhesive layer connected. The fabric provided by this invention has a good hand feel, is lightweight, and provides complete light blocking, UV protection, and effective heat reflection and insulation.

Description

Technical Field

[0001] This invention belongs to the field of fabric technology, specifically relating to a fabric and its preparation method. Background Technology

[0002] Modern lifestyles are diverse, leading to increasingly higher demands for multifunctional fabrics. Existing technologies include black coatings on fabrics for complete blackout, but these offer poor heat insulation. Silver coatings are commonly used as inner layers in clothing and outdoor products for insulation to prevent heat loss, but they are not effective against ultraviolet rays.

[0003] Therefore, it is necessary to develop a fabric that simultaneously provides light blocking, UV protection, and cooling. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a fabric and its preparation method. The fabric has a good hand feel, is lightweight, and provides complete sun protection and UV resistance while effectively reflecting and blocking heat, thus achieving a cooling effect.

[0005] To achieve this objective, the present invention employs the following technical solution:

[0006] In a first aspect, the present invention provides a fabric comprising a black adhesive base fabric composite layer, a first silver adhesive layer, a black adhesive layer, and a second silver adhesive layer stacked sequentially, wherein the black adhesive base fabric composite layer is provided with a porous structure, and the black adhesive base fabric composite layer includes a base fabric layer and at least one black adhesive layer, wherein the base fabric layer and the first silver adhesive layer are connected.

[0007] In this invention, the fabric comprises a black adhesive base fabric composite layer, a first silver adhesive layer, a black adhesive layer, and a second silver adhesive layer, stacked sequentially. The black adhesive base fabric composite layer has a porous structure. Together, the black adhesive base fabric composite layer and the black adhesive layer serve to block light, effectively absorbing light and blocking ultraviolet rays. The base fabric provides wrinkle and tear resistance, while the first silver adhesive layer reflects light and lowers the temperature. The porous structure in the black adhesive base fabric composite layer reduces the fabric's weight and increases its aesthetic appeal, allowing the first silver adhesive layer to reflect light. The interplay of these layers results in a lightweight fabric with a good hand feel, closely resembling the base fabric. It provides both light blocking and UV protection, while also effectively reflecting and blocking heat, thus achieving a cooling effect.

[0008] It should be noted that the shape of the holes on the porous black adhesive base fabric composite layer is not specifically limited in this invention, and those skilled in the art can make adjustments according to actual needs.

[0009] Preferably, the area ratio of the perforated structure on the surface of the black adhesive base fabric composite layer is 20% to 30%, such as 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, or 29%.

[0010] In this invention, the area ratio of the perforated structure on the surface of the black rubber base fabric composite layer is preferably 20% to 30%. If the area ratio of the perforated structure is too low, the light reflection effect of the fabric will be reduced, the cooling performance of the fabric will be reduced, and the weight will be larger. If the area ratio of the perforated structure is too high, the black rubber base fabric composite layer of the fabric will absorb less light, the cooling performance of the fabric will be reduced, the light blocking rate will be reduced, the ultraviolet blocking rate will be reduced, and the mechanical properties of the fabric will be reduced, and it may even be prone to damage.

[0011] Preferably, the black adhesive base fabric composite layer includes a base fabric layer, a first black adhesive layer, a second black adhesive layer, and a third black adhesive layer stacked sequentially.

[0012] Preferably, the third black adhesive layer is a velvet black adhesive layer.

[0013] In this invention, the third black adhesive layer is preferably a velvet black adhesive layer, which has a better appearance quality and a deeper blackness.

[0014] In this invention, the velvet texture on the surface of the velvet black adhesive layer can be prepared using any method known in the art. For example, a release paper and / or a release film with a velvet texture can be selected as the release material, and black adhesive can be coated on the release paper and / or the release film with a velvet texture. After drying, a velvet texture can be formed on the surface to obtain the velvet black adhesive layer. Those skilled in the art can also make adjustments according to the actual situation.

[0015] Preferably, the fabric has a weight of 110–140 g / m². 2 For example, 113g / m 2 116g / m 2 119g / m 2 122g / m 2 125g / m 2 128g / m 2 131g / m 2 134g / m 2 Or 137g / m 2 wait.

[0016] In a second aspect, the present invention provides a method for preparing the fabric as described in the first aspect, the method comprising the following steps: laminating a black adhesive base fabric composite layer, a first silver adhesive layer, a black adhesive layer and a second silver adhesive layer to obtain the fabric.

[0017] Preferably, the preparation method of the black adhesive base fabric composite layer includes the following steps: sequentially laminating a semi-dried first black adhesive layer, a semi-dried second black adhesive layer, and a semi-dried third black adhesive layer onto the base fabric layer, performing a first drying, and punching holes to obtain the black adhesive base fabric composite layer.

[0018] Preferably, the method for preparing the semi-dried first black adhesive layer includes applying black adhesive to the surface of the profile and semi-drying it to obtain the semi-dried first black adhesive layer.

[0019] Preferably, the method for preparing the semi-dried second black adhesive layer includes applying black adhesive to the surface of the profile and semi-drying it to obtain the semi-dried second black adhesive layer.

[0020] Preferably, the method for preparing the semi-dried third black adhesive layer includes applying black adhesive to the surface of the profile and semi-drying it to obtain the semi-dried third black adhesive layer.

[0021] Preferably, in the preparation methods of the semi-dried first black glue layer, the semi-dried second black glue layer, and the semi-dried third black glue layer, the semi-drying temperature is independently 150-160℃ (e.g., 151℃, 152℃, 153℃, 154℃, 155℃, 156℃, 157℃, 158℃, or 159℃, etc.), and the time is independently 2.5-4.0min (e.g., 2.7min, 2.9min, 3.1min, 3.3min, 3.5min, 3.7min, or 3.9min, etc.).

[0022] In this invention, the semi-drying step makes the black adhesive semi-dry, not completely dry, which is beneficial for subsequent lamination with other layer structures.

[0023] Preferably, in the preparation methods of the semi-dried first black adhesive layer, the semi-dried second black adhesive layer, and the semi-dried third black adhesive layer, the coating amount of the black adhesive applied to the profile surface is independently 14-16 g / m². 2 For example, 14.2g / m 2 14.4g / m 2 14.6g / m 2 14.8g / m 2 15.0g / m 2 15.2g / m 2 15.4g / m 2 15.6g / m 2 Or 15.8g / m 2 wait.

[0024] Preferably, the preparation method specifically includes the following steps: sequentially laminating a semi-dried first silver adhesive layer, a semi-dried black adhesive layer, and a semi-dried second silver adhesive layer on one side of the base fabric layer of the black adhesive base fabric composite layer, followed by a second drying, to obtain the fabric.

[0025] Preferably, the method for preparing the semi-dried first silver paste layer includes applying silver paste to the surface of the profile and semi-drying it to obtain the semi-dried first silver paste layer.

[0026] Preferably, the method for preparing the semi-dried black adhesive layer includes applying black adhesive to the surface of the profile and semi-drying it to obtain the semi-dried black adhesive layer.

[0027] Preferably, the method for preparing the semi-dried second silver paste layer includes applying silver paste to the surface of the profile and semi-drying it to obtain the semi-dried second silver paste layer.

[0028] Preferably, in the preparation methods of the semi-dried first silver paste layer, the semi-dried black paste layer, and the semi-dried second silver paste layer, the semi-drying temperature is independently 150-160℃ (e.g., 151℃, 152℃, 153℃, 154℃, 155℃, 156℃, 157℃, 158℃, or 159℃, etc.), and the time is independently 2.5-4.0min (e.g., 2.7min, 2.9min, 3.1min, 3.3min, 3.5min, 3.7min, or 3.9min, etc.).

[0029] Preferably, the first drying and the second drying are each carried out independently under pressure, the temperature of the first drying and the second drying are each independently 150-160℃ (e.g., 151℃, 152℃, 153℃, 154℃, 155℃, 156℃, 157℃, 158℃ or 159℃, etc.), the time of the first drying and the second drying are each independently 2.5-4.0 min (e.g., 2.7 min, 2.9 min, 3.1 min, 3.3 min, 3.5 min, 3.7 min or 3.9 min, etc.), and the pressure of the pressurization is each independently 5-6 kg / m³. 2 (e.g., 5.1 kg / m) 2 5.2kg / m 2 5.3kg / m 2 5.4kg / m 2 5.5kg / m 2 5.6kg / m 2 5.7kg / m 2 5.8kg / m 2 Or 5.9kg / m 2 wait).

[0030] Preferably, in the preparation methods of the semi-dried first black adhesive layer, the semi-dried second black adhesive layer, the semi-dried third black adhesive layer, and the semi-dried black adhesive layer, the black adhesives each independently comprise the following components by mass percentage: 80% to 90% polyurethane adhesive (e.g., 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, or 89%) and 10% to 20% carbon black (e.g., 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, or 19%).

[0031] Preferably, in the preparation method of the semi-dried first silver paste layer and the semi-dried second silver paste layer, the silver paste independently comprises the following components by mass percentage: 80% to 90% polyurethane adhesive (e.g., 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, or 89%) and 10% to 20% aluminum powder (e.g., 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, or 19%).

[0032] Preferably, the release material includes a release film or release paper;

[0033] Preferably, in the method for preparing the semi-dried first silver paste layer, the amount of silver paste applied to the profile surface is 14-16 g / m². 2 For example, 14.2g / m 2 14.4g / m 2 14.6g / m 2 14.8g / m 2 15.0g / m 2 15.2g / m 2 15.4g / m 2 15.6g / m 2 Or 15.8g / m 2 wait.

[0034] Preferably, in the method for preparing the semi-dried black adhesive layer, the amount of black adhesive applied to the surface of the profile is 14-16 g / m². 2 For example, 14.2g / m 2 14.4g / m 2 14.6g / m 2 14.8g / m 2 15.0g / m 2 15.2g / m 2 15.4g / m 2 15.6g / m 2 Or 15.8g / m 2 wait.

[0035] Preferably, in the method for preparing the semi-dried second silver paste layer, the amount of silver paste applied to the profile surface is 14-16 g / m². 2 For example, 14.2g / m 2 14.4g / m 2 14.6g / m 2 14.8g / m 2 15.0g / m 2 15.2g / m 2 15.4g / m 2 15.6g / m2 Or 15.8g / m 2 wait.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] The fabric of this invention comprises a black adhesive base fabric composite layer, a first silver adhesive layer, a black adhesive layer, and a second silver adhesive layer, stacked sequentially. The black adhesive base fabric composite layer has a porous structure. The black adhesive base fabric composite layer and the black adhesive layer serve to block light, effectively absorbing light and blocking ultraviolet rays. The base fabric provides wrinkle and tear resistance, while the first silver adhesive layer reflects light and reduces temperature. The porous structure in the black adhesive base fabric composite layer reduces the fabric's weight and increases its aesthetic appeal. The interplay of these layers results in a lightweight fabric with a good hand feel, closely resembling the base fabric. It provides both light blocking and UV protection, while also effectively reflecting and blocking heat, thus reducing temperature. The fabric's weight is 100–140 g / m². 2 Cooling performance ≥19.0℃, shading rate ≥99%, ultraviolet blocking rate ≥98.0%. In preferred cases, cooling performance ≥20.0℃, shading rate ≥100%, ultraviolet blocking rate ≥99.9%. Attached Figure Description

[0038] Figure 1 A schematic diagram of the fabric structure provided in Example 1;

[0039] Among them, 1-black adhesive base fabric composite layer; 2-first silver adhesive layer; 3-black adhesive layer; 4-second silver adhesive layer; 11-base fabric layer; 12-first black adhesive layer; 13-second black adhesive layer; 14-third black adhesive layer; 15-pore structure;

[0040] Figures 2-4 This is a schematic diagram of the fabric provided in Example 1. Detailed Implementation

[0041] The technical solution of the present invention will be further illustrated below through specific embodiments. Those skilled in the art should understand that the embodiments described are merely illustrative of the present invention and should not be construed as limiting the invention in any way.

[0042] The sources of some of the raw materials used in the following examples and comparative examples are as follows:

[0043] Base fabric: 50D high-elastic spring spun base fabric, commercially available; the parallel experiments used the same commercially available product.

[0044] Polyurethane adhesive: Model number W083, manufacturer: Huafeng Group;

[0045] Polyurethane adhesive: Model number W059, manufacturer: Huafeng Group.

[0046] Example 1

[0047] This embodiment provides a fabric and its preparation method, wherein the fabric, as shown in the example... Figure 1 As shown, the composite material includes a black adhesive base fabric composite layer 1, a first silver adhesive layer 2, a black adhesive layer 3, and a second silver adhesive layer 4, which are stacked sequentially. The black adhesive base fabric composite layer 1 includes a base fabric layer 11, a first black adhesive layer 12, a second black adhesive layer 13, and a third black adhesive layer 14, which are stacked sequentially. The base fabric layer 11 and the first silver adhesive layer 2 are connected. The black adhesive base fabric composite layer 1 has a hole structure 15. The repeating unit of the hole structure is a rhombus with diagonal lengths of 0.5 mm and 1.5 mm, respectively. The area of ​​the hole structure on the surface of the black adhesive base fabric composite layer accounts for 25%.

[0048] The preparation method includes the following steps:

[0049] (1) Apply black adhesive to the surface of the release paper, with a coating amount of 15g / m². 2 Heat at 150℃ for 3 minutes to achieve semi-drying, and obtain the first black glue layer that is semi-dried. Then, bond it with the base fabric (50D high-elastic spring spun base fabric), peel off the release paper, and obtain composite layer A.

[0050] Black adhesive is applied to the surface of the release paper at a coating amount of 15 g / m². 2 Heat at 150℃ for 3 minutes to achieve semi-drying, and obtain a semi-dry second black glue layer, which is then bonded to the composite layer A obtained in step (1), and the release paper is peeled off to obtain composite layer B.

[0051] Black adhesive was applied to the surface of release paper with a velvety texture at a coating amount of 15 g / m². 2 Heat at 150℃ for 3 minutes to achieve semi-drying and obtain a semi-dry third black glue layer. Then, attach the side of the semi-dry third black glue layer without velvet texture to the composite layer B obtained in step (2), and peel off the release paper with velvet texture to obtain composite layer C.

[0052] Composite layer C was dried under pressure at a temperature of 160℃ for 3 minutes, with a pressure of 5 kg / m³. 2 Punching holes yields the black adhesive base fabric composite layer;

[0053] (2) Apply silver glue to the surface of the release paper, with a coating amount of 15 g / m. 2 Heat at 150℃ for 3 minutes to achieve semi-drying, and obtain a semi-dry first silver paste layer. It is then bonded to one side of the base fabric layer of the black glue base fabric composite layer obtained in step (1). The release paper is then peeled off to obtain composite layer D.

[0054] Apply black adhesive to the surface of the release paper at a coating amount of 15 g / m². 2Heat at 150℃ for 3 minutes to achieve semi-drying, and obtain the semi-dry black glue layer, which is then bonded to the composite layer D. The release paper is then peeled off to obtain the composite layer E.

[0055] Apply silver adhesive to the surface of the release paper at a coating amount of 15 g / m². 2 The material is heated at 150℃ for 3 minutes to achieve semi-drying, resulting in the semi-dried second silver paste layer. This layer is then bonded to the composite layer E, and the release paper is peeled off. The material is then dried under pressure at 160℃ for 3 minutes at a pressure of 5 kg / m². 2 The fabric is obtained;

[0056] The aforementioned black adhesive was prepared by mixing polyurethane adhesive (W083) and carbon black, wherein the mass percentage of polyurethane adhesive was 85% and the mass percentage of carbon black was 15%.

[0057] The silver adhesive mentioned above is prepared by mixing polyurethane adhesive (W059) and aluminum powder, wherein the mass percentage of polyurethane adhesive is 85% and the mass percentage of aluminum powder is 15%.

[0058] Example 2

[0059] This embodiment provides a fabric and its preparation method, which differs from Embodiment 1 only in that the repeating unit of the hole structure is a circle with a diameter of 0.8 mm, and the area of ​​the hole structure on the surface of the black rubber base fabric composite layer accounts for 20%.

[0060] In the preparation method, the black adhesive is prepared by mixing polyurethane adhesive (W083) and carbon black, wherein the mass percentage of polyurethane adhesive is 90% and the mass percentage of carbon black is 10%; the silver adhesive is prepared by mixing polyurethane adhesive (W059) and aluminum powder, wherein the mass percentage of polyurethane adhesive is 80% and the mass percentage of aluminum powder is 20%.

[0061] Other conditions are the same as in Example 1.

[0062] Example 3

[0063] This embodiment provides a fabric and its preparation method, which differs from Embodiment 1 only in that the area of ​​the pore structure on the surface of the black rubber base fabric composite layer accounts for 30%.

[0064] In the preparation method, the black adhesive is prepared by mixing polyurethane adhesive (W083) and carbon black, wherein the mass percentage of polyurethane adhesive is 80% and the mass percentage of carbon black is 20%; the silver adhesive is prepared by mixing polyurethane adhesive (W059) and aluminum powder, wherein the mass percentage of polyurethane adhesive is 90% and the mass percentage of aluminum powder is 10%.

[0065] Other conditions are the same as in Example 1.

[0066] Example 4

[0067] This embodiment provides a fabric and its preparation method, which differs from Embodiment 1 only in that the area of ​​the perforated structure on the surface of the black rubber base fabric composite layer accounts for 15%, while other conditions are the same as in Embodiment 1.

[0068] Example 5

[0069] This embodiment provides a fabric and its preparation method, which differs from Embodiment 1 only in that the area of ​​the perforated structure on the surface of the black rubber base fabric composite layer accounts for 35%, while other conditions are the same as in Embodiment 1.

[0070] Example 6

[0071] This embodiment provides a fabric and its preparation method, which differs from Embodiment 1 only in that the black glue base fabric composite layer does not include a second black glue layer and a third black glue layer, and the preparation method does not include the step of bonding with the semi-dried second black glue layer and the semi-dried third black glue layer. Other conditions are the same as in Embodiment 1.

[0072] Example 7

[0073] This embodiment provides a fabric and its preparation method, which differs from Embodiment 1 only in that the black glue base fabric composite layer does not include a third black glue layer, and the preparation method does not include the step of bonding a semi-dried third black glue layer. Other conditions are the same as in Embodiment 1.

[0074] Comparative Example 1

[0075] This comparative example provides a fabric and its preparation method, which differs from Example 1 only in that the black rubber base fabric composite layer does not have a perforated structure, and the preparation method does not include the punching step, while other conditions are the same as in Example 1.

[0076] Comparative Example 2

[0077] This comparative example provides a fabric and its preparation method, which differs from Example 1 only in that it does not include the first silver coating layer, the base fabric layer and the black coating layer are directly connected in the black coating base fabric composite layer, and the preparation method does not include the step of bonding with the semi-dried first silver coating layer. Other conditions are the same as in Example 1.

[0078] Comparative Example 3

[0079] This comparative example provides a fabric and its preparation method, which differs from Example 1 only in that the fabric does not include a black adhesive layer, the first silver adhesive layer and the second silver adhesive layer are directly connected, and the preparation method does not include the step of bonding with a semi-dried black adhesive layer, while other conditions are the same as in Example 1.

[0080] The fabrics provided in Examples 1-7 and Comparative Examples 1-3 were tested as follows.

[0081] Cooling performance: Tested by Guangzhou Testing & Inspection Group in accordance with GTTC / GF TM 086-2022;

[0082] Opacity: Tested according to FZ / T 62025-2015;

[0083] UV blocking rate: Tested by Guangzhou Inspection Group in accordance with GTTC / GF TM 091-2022.

[0084] The test results are shown in Table 1 below:

[0085] Table 1

[0086] <![CDATA[Grammage (g / m 2 )]]> Cooling performance (°C) shading rate UV blocking rate Example 1 135 21.8 100％ 99.9％ Example 2 140 20.2 100％ 99.9％ Example 3 130 20.5 100％ 99.9％ Example 4 145 19.3 100％ 99.9％ Example 5 125 19.2 99％ 99.9％ Example 6 100 19.4 99％ 98.0％ Example 7 115 20.0 100％ 99.0％ Comparative Example 1 168 14.3 100％ 99.9％ Comparative Example 2 125 14.2 99％ 99.0％ Comparative Example 3 125 17.0 85％ 85.0％

[0087] As shown in Table 1, the fabrics provided in Examples 1-7 are lightweight, capable of blocking light and UV rays, and effectively reflecting and blocking heat, exhibiting excellent heat insulation and cooling effects. The fabric provided in Example 1, for instance... Figures 2-4 As shown.

[0088] Compared with Example 1, if the area ratio of the pore structure on the surface of the black glue base fabric composite layer is too small (Example 4), the fabric weight increases, the area of ​​the first silver glue layer reflecting light decreases, the cooling number decreases, and the cooling performance declines.

[0089] Compared with Example 1, if the area ratio of the porous structure on the surface of the black adhesive base fabric composite layer is too large (Example 5), the light absorption rate of the black adhesive base fabric composite layer will decrease, the temperature drop will decrease, the light blocking rate will decrease, and the ultraviolet blocking rate will decrease.

[0090] Compared with Example 1, if the black adhesive base fabric composite layer does not have a porous structure (Comparative Example 1), the fabric weight increases, the first silver adhesive layer cannot reflect light to reduce temperature, and the cooling performance decreases.

[0091] Compared with Example 1, if the first silver coating layer (Comparative Example 2) is not included, the fabric does not reflect light due to the absence of the first silver coating layer, resulting in decreased cooling performance, reduced light blocking rate, and reduced ultraviolet blocking rate.

[0092] Compared with Example 1, if the second black adhesive layer (Comparative Example 3) is not included, the fabric temperature drop is reduced, the light blocking rate is reduced, and the ultraviolet blocking rate is reduced.

[0093] The applicant declares that the present invention is illustrated by the above embodiments, but the present invention is not limited to the above process steps, that is, it does not mean that the present invention must rely on the above process steps to be implemented. Those skilled in the art should understand that any improvements to the present invention, equivalent substitutions of the raw materials used in the present invention, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

Claims

1. A fabric, characterized in that, The fabric includes a black glue base fabric composite layer, a first silver glue layer, a black glue layer and a second silver glue layer stacked in sequence. The black glue base fabric composite layer has a perforated structure and includes a base fabric layer and at least one black glue layer. The base fabric layer and the first silver glue layer are connected.

2. The fabric according to claim 1, characterized in that, The area of ​​the perforated structure on the surface of the black rubber base fabric composite layer accounts for 20% to 30%.

3. The fabric according to claim 1 or 2, characterized in that, The black adhesive base fabric composite layer includes a base fabric layer, a first black adhesive layer, a second black adhesive layer, and a third black adhesive layer stacked in sequence.

4. The fabric according to any one of claims 1 to 3, characterized in that, The third black adhesive layer is a velvet black adhesive layer.

5. The fabric according to any one of claims 1 to 4, characterized in that, The fabric has a weight of 100-140 g / m². 2 .

6. A method for preparing the fabric according to any one of claims 1 to 5, characterized in that, The preparation method includes the following steps: combining a black adhesive base fabric composite layer, a first silver adhesive layer, a black adhesive layer, and a second silver adhesive layer to obtain the fabric.

7. The preparation method according to claim 6, characterized in that, The preparation method of the black adhesive base fabric composite layer includes the following steps: sequentially laminating a semi-dried first black adhesive layer, a semi-dried second black adhesive layer, and a semi-dried third black adhesive layer onto the base fabric layer, performing a first drying, and punching holes to obtain the black adhesive base fabric composite layer. Preferably, the method for preparing the semi-dried first black adhesive layer includes applying black adhesive to the surface of the profile and semi-drying it to obtain the semi-dried first black adhesive layer. Preferably, the method for preparing the semi-dried second black adhesive layer includes applying black adhesive to the surface of the profile and semi-drying it to obtain the semi-dried second black adhesive layer. Preferably, the method for preparing the semi-dried third black adhesive layer includes applying black adhesive to the surface of the profile, semi-drying, and obtaining the semi-dried third black adhesive layer. Preferably, in the preparation methods of the semi-dried first black glue layer, the semi-dried second black glue layer and the semi-dried third black glue layer, the semi-drying temperature is independently 150-160°C and the time is independently 2.5-4.0 min.

8. The preparation method according to claim 7, characterized in that, In the preparation methods of the semi-dried first black adhesive layer, the semi-dried second black adhesive layer, and the semi-dried third black adhesive layer, the coating amount of the black adhesive applied to the profile surface is independently 14-16 g / m. 2 .

9. The preparation method according to any one of claims 6 to 8, characterized in that, The preparation method specifically includes the following steps: sequentially laminating a semi-dried first silver adhesive layer, a semi-dried black adhesive layer, and a semi-dried second silver adhesive layer on one side of the base fabric layer of the black adhesive base fabric composite layer, followed by a second drying process to obtain the fabric. Preferably, the method for preparing the semi-dried first silver paste layer includes applying silver paste to the surface of the profile and semi-drying it to obtain the semi-dried first silver paste layer. Preferably, the method for preparing the semi-dried black adhesive layer includes applying black adhesive to the surface of the profile and semi-drying it to obtain the semi-dried black adhesive layer. Preferably, the method for preparing the semi-dried second silver paste layer includes applying silver paste to the surface of the profile and semi-drying it to obtain the semi-dried second silver paste layer; Preferably, in the preparation methods of the semi-dried first silver paste layer, the semi-dried black paste layer, and the semi-dried second silver paste layer, the semi-drying temperature is independently 150-160°C, and the time is independently 2.5-4.0 min. Preferably, the first drying and the second drying are each carried out independently under pressure, the temperature of the first drying and the second drying are each independently 150-160°C, the time of the first drying and the second drying are each independently 2.5-4.0 min, and the pressure of the pressurization is each independently 5-6 kg / m³. 2 ; Preferably, in the preparation methods of the semi-dried first black glue layer, the semi-dried second black glue layer, the semi-dried third black glue layer and the semi-dried black glue layer, the black glue each independently includes the following components by mass percentage: 80% to 90% polyurethane glue and 10% to 20% carbon black. Preferably, in the preparation methods of the semi-dried first silver paste layer and the semi-dried second silver paste layer, the silver paste each independently comprises the following components by mass percentage: 80% to 90% polyurethane adhesive and 10% to 20% aluminum powder; Preferably, the release material includes a release film or release paper.

10. The preparation method according to claim 9, characterized in that, In the method for preparing the semi-dried first silver paste layer, the amount of silver paste applied to the surface of the profile is 14-16 g / m. 2 ; Preferably, in the method for preparing the semi-dried black adhesive layer, the amount of black adhesive applied to the surface of the profile is 14-16 g / m². 2 ; Preferably, in the method for preparing the semi-dried second silver paste layer, the amount of silver paste applied to the profile surface is 14-16 g / m². 2 .

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