High-flame-retardant low-light-transmittance side window sunshade fabric for vehicle
By employing a composite structure of cross-reinforced coating and light-blocking layer in the fabric of automotive side window sunshades, the problems of easy fabric damage and volatilization of harmful substances have been solved, achieving high strength, low light transmittance and mildew resistance, thus improving driving comfort and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 常州旷达纺织科技发展有限公司
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-08
AI Technical Summary
Existing automotive side window sunshade fabrics are prone to releasing harmful substances under strong light, have poor strength, are easily damaged, and are susceptible to bacterial and mold growth in humid environments, affecting health and causing mold growth on interior parts.
It adopts a composite structure of base layer, adhesive layer, release film, bonding layer and heat insulation layer. The base layer and heat insulation layer are made of transparent materials. The bonding layer includes a cross-laid reinforcing coating and a light-shielding layer. The reinforcing coating is composed of fluorocarbon coating, the light-shielding layer is made of aluminum foil strips, and the heat insulation layer is a nano-ceramic film. The cross-laid structure of the reinforcing coating improves strength, and the light-shielding layer reduces light contact.
It improves the structural strength of the fabric, prevents damage, reduces the volatilization of harmful substances, avoids mildew, provides low light transmittance, and maintains driving comfort and safety.
Smart Images

Figure CN224210735U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive sunshade technology, and in particular, to a high flame-retardant and low light-transmittance side window sunshade fabric for automobiles. Background Technology
[0002] Car side window sunshades are used to block sunlight from entering the vehicle to improve the comfort of passengers. Currently, car sunshade fabrics mainly use aluminum foil layered with multiple layers of bubble film. The aluminum foil reflects sunlight and reduces heat radiation, while the multiple layers of bubble film have high strength, toughness, and strong impact resistance. Aluminum foil is often used in a full-coverage structure on the sunshade, resulting in insufficient light entering the car. When the side window is rolled up, the interior humidity is high, especially in humid seasons. A damp environment easily breeds bacteria and mold, which is detrimental to human health and can also cause mold growth on interior parts. Bubble film, under strong sunlight, easily releases harmful substances such as formaldehyde and benzene, which is also harmful to human health. Furthermore, its strength is poor, making it prone to stretching and damage. Additionally, bubble film is relatively thick, requiring a relatively large storage and transportation space. Therefore, the inventors need to improve the car side window sunshade fabric to overcome the above-mentioned shortcomings. Utility Model Content
[0003] The technical problem to be solved by this utility model is: in order to overcome the above-mentioned problems existing in the prior art, a high flame retardant and low light transmittance side window sunshade fabric for automobiles that is low in light transmittance, high in strength, and not easily damaged is provided.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a high flame-retardant and low light-transmitting side window sunshade fabric for automobiles, including a base layer, an adhesive layer and a release film are sequentially provided on one side of the base layer, and a bonding layer and a heat insulation layer are sequentially provided on the other side of the base layer. The base layer and the heat insulation layer are both made of transparent materials. The bonding layer includes a reinforcing coating and a light-shielding layer. The reinforcing coating is coated on the surface of the base layer. The reinforcing coating has a long strip structure. The reinforcing coatings are intersected with each other. The area enclosed by multiple reinforcing coatings forms a light-transmitting area. The shape of the light-shielding layer is the same as that of the reinforcing coating and covers the reinforcing coating.
[0005] Furthermore, the reinforcing coating includes a plurality of mutually parallel first coating strips and a plurality of mutually parallel second coating strips, wherein the first coating strips and the second coating strips intersect each other.
[0006] Furthermore, the included angle between the first coating strip and the second coating strip is α, where 45°≤α≤90°.
[0007] Furthermore, the included angle α between the first coating strip and the second coating strip is 90°.
[0008] Furthermore, the distance K1 between any two adjacent first coating strips is the same, and the distance K2 between any two adjacent second coating strips is the same, and K1 = K2.
[0009] Furthermore, the reinforcing coating is a fluorocarbon coating.
[0010] Furthermore, the light-shielding layer is made of aluminum foil strips.
[0011] Furthermore, the heat insulation layer is a nano-ceramic membrane.
[0012] Furthermore, the base layer is made of transparent PET material.
[0013] The beneficial effects of this utility model are as follows: The automotive high flame retardant and low light transmittance side window sunshade fabric of this utility model has multiple reinforcing coatings arranged in an intersecting structure. On the one hand, this improves the overall structural strength of the fabric and makes it less prone to damage. On the other hand, it forms a light-transmitting area for light to pass through the fabric, achieving a low light transmittance effect. The light-blocking layer covering the reinforcing coating can effectively block the light corresponding to the position of the reinforcing coating, reduce the contact between light and the reinforcing coating, effectively avoid the problem of performance reduction of the reinforcing coating due to light heating, and ensure the working performance of the reinforcing coating. 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 structural schematic diagram of the high flame-retardant and low light-transmitting side window sunshade fabric for automobiles of this utility model;
[0016] Figure 2 yes Figure 1 The diagram shows the structural schematic of the composite layer in the high flame-retardant and low light-transmittance side window sunshade fabric for automobiles.
[0017] In the diagram: 1. Base layer, 2. Adhesive layer, 3. Release film, 4. Bonding layer, 41. Reinforcing coating, 410. Light-transmitting area, 411. First coating strip, 412. Second coating strip, 42. Light-shielding layer, 5. Heat insulation layer. Detailed Implementation
[0018] The present invention will now be described in 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.
[0019] Please see Figure 1 , Figure 2This utility model provides a high flame-retardant and low light-transmitting side window sunshade fabric for automobiles, including a base layer 1. An adhesive layer 2 and a release film 3 are sequentially disposed on one side of the base layer 1, and a bonding layer 4 and a heat insulation layer 5 are sequentially disposed on the other side of the base layer 1. The base layer 1 and the heat insulation layer 5 are both made of transparent materials. The bonding layer 4 includes a reinforcing coating 41 and a light-shielding layer 42. The reinforcing coating 41 is coated on the surface of the base layer 1 and has a long strip structure. The reinforcing coatings 41 are intersected with each other, and the area enclosed by multiple reinforcing coatings 41 forms a light-transmitting area 410. The shape of the light-shielding layer 42 is the same as that of the reinforcing coating 41 and covers the reinforcing coating 41.
[0020] Release film 3 is placed on one side of the automotive high flame retardant and low light transmittance side window sunshade fabric of this utility model, which can play a good protective role in the packaging and transportation of the fabric. When the release film is peeled off, the adhesive layer 2 is exposed, and the fabric can be attached to the car side window through the adhesive layer 2.
[0021] In this embodiment, adhesive layer 2 is a hot melt adhesive layer. During processing, the hot melt adhesive is melted by high-temperature heating, and then the release paper is pre-adheded to the release paper using a heat pressing device.
[0022] The reinforcing coating 41 is applied to the base layer 1, which can increase the structural strength of the base layer 1. At the same time, by setting multiple reinforcing coatings 41 and intersecting between them, the structure of the base layer 1 is strengthened from multiple angles, so that the structural strength at each position on the base layer 1 is guaranteed, effectively preventing the fabric from being easily deformed or even damaged due to stretching.
[0023] A light-shielding layer 42 covers the reinforcing coating 41 to block light and reduce the contact between light and the reinforcing coating 41, effectively preventing problems such as performance degradation of the reinforcing coating 41 due to heat caused by light exposure. In addition, when the light-shielding layer 42 covers the reinforcing coating 41, light can pass through the portion of the base layer 1 corresponding to the light-transmitting area 410, while the portion of the base layer 1 corresponding to the light-shielding layer 42 has a limited amount of light entering it. Thus, the light entering the vehicle through the light-transmitting area 410 and the base layer 1 can provide a certain amount of illumination to the vehicle interior, thereby dehumidifying the interior, ensuring the safety of the occupants, and preventing mold growth on the interior parts.
[0024] In this embodiment, the reinforcing coating 41 includes a plurality of parallel first coating strips 411 and a plurality of parallel second coating strips 412. The first coating strips 411 and the second coating strips 412 intersect each other, and the included angle between the first coating strips 411 and the second coating strips 412 is α, wherein 45°≤α≤90°. In this embodiment, α=90°.
[0025] In another embodiment, α = 45°. This is not a limitation. In specific implementation, the included angle α between the first coating strip 411 and the second coating strip 412 can be set as needed.
[0026] In one specific implementation, the distance K1 between any two adjacent first coating strips 411 is the same, and the distance K2 between any two adjacent second coating strips 41 is the same, and K1 = K2. In other implementations, K1 may not be equal to K2. The user can adjust the size of the light-transmitting area 410 and the light-blocking layer 42 by adjusting the size of K1 and K2, thereby controlling the amount of light transmitted through the fabric.
[0027] In this embodiment, the reinforcing coating 41 is a fluorocarbon coating. Specifically, the fluorocarbon coating is set to a transparent color to ensure the light transmission effect of the light-transmitting area 410. At the same time, the fluorocarbon coating has high adhesion, high hardness, impact resistance, and tensile strength, ensuring its stable adhesion to the base layer 1 and giving it excellent physical and mechanical properties, thus improving the overall structural strength of the fabric. Furthermore, the fluorocarbon coating is applied by spraying, resulting in a thin coating that does not occupy a large amount of space, facilitating storage and transportation.
[0028] The light-shielding layer 42 is made of aluminum foil strips. Due to its unique metallic properties, the aluminum foil strips can effectively block light, thereby reducing the amount of light hitting the reinforcing coating 41. Furthermore, when the reinforcing coating 41 is a fluorocarbon coating, the fluorocarbon coating will release toxic phosgene and fluoroolefin gases when exposed to high temperatures. By blocking light through the light-shielding layer 42, the temperature of the reinforcing coating 41 can be effectively prevented from rising when exposed to strong light, thus preventing the generation of toxic gases.
[0029] In this embodiment, the base layer 1 is made of transparent PET material. On the one hand, this material has high transparency and can provide high light transmittance. On the other hand, PET material has excellent mechanical properties such as high strength, high toughness and wear resistance, is not easily damaged and has a long service life.
[0030] The heat insulation layer 5, as the outermost structure of the fabric, is used to improve the heat insulation and flame retardant properties of the fabric. In this embodiment, the heat insulation layer 5 is a nano-ceramic film. This material has good light transmittance and can reflect and absorb heat through ceramic particles, which can significantly reduce the temperature inside the vehicle. It also has strong scratch resistance and can keep the fabric flat and smooth.
[0031] The high flame-retardant and low light-transmitting side window sunshade fabric for automobiles of this utility model has multiple reinforcing coatings 41 arranged in an intersecting structure. On the one hand, this improves the overall structural strength of the fabric and makes it less prone to damage. On the other hand, it forms a light-transmitting area 410 for light to pass through the fabric, achieving a low light-transmitting effect. The light-blocking layer 42 covering the reinforcing coatings 41 can effectively block the light corresponding to the position of the reinforcing coatings 41, reducing the contact between light and the reinforcing coatings 41. This effectively avoids problems such as performance degradation of the reinforcing coatings 41 due to light exposure and ensures the working performance of the reinforcing coatings 41.
[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 scope 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 high flame-retardant, low light-transmittance side window sunshade fabric for automobiles, characterized in that: The substrate includes a base layer, on one side of which an adhesive layer and a release film are sequentially provided, and on the other side of which a bonding layer and a heat insulation layer are sequentially provided. Both the base layer and the heat insulation layer are made of transparent material. The bonding layer includes a reinforcing coating and a light-shielding layer. The reinforcing coating is applied to the surface of the base layer and has a long strip structure. The reinforcing coatings are intersected with each other, and the area enclosed by multiple reinforcing coatings forms a light-transmitting area. The light-shielding layer has the same shape as the reinforcing coating and covers the reinforcing coating.
2. The automotive high flame-retardant low light-transmittance side window sunshade fabric as described in claim 1, characterized in that: The reinforcing coating includes a plurality of parallel first coating strips and a plurality of parallel second coating strips, wherein the first coating strips and the second coating strips intersect each other.
3. The automotive high flame-retardant low light-transmittance side window sunshade fabric as described in claim 2, characterized in that: The included angle between the first coating strip and the second coating strip is α, where 45°≤α≤90°.
4. The automotive high flame-retardant low light-transmittance side window sunshade fabric as described in claim 3, characterized in that: The included angle α between the first coating strip and the second coating strip is 90°.
5. The automotive high flame-retardant low light-transmittance side window sunshade fabric as described in claim 2, characterized in that: The distance K1 between any two adjacent first coating strips is the same, and the distance K2 between any two adjacent second coating strips is the same, and K1 = K2.
6. The automotive high flame-retardant low light-transmittance side window sunshade fabric as described in claim 1, characterized in that: The reinforcing coating is a fluorocarbon coating.
7. The automotive high flame-retardant low light-transmittance side window sunshade fabric as described in claim 1, characterized in that: The light-shielding layer is made of aluminum foil strips.
8. The automotive high flame-retardant low light-transmittance side window sunshade fabric as described in claim 1, characterized in that: The heat insulation layer is a nano-ceramic membrane.
9. The automotive high flame-retardant low light-transmittance side window sunshade fabric as described in claim 1, characterized in that: The base layer is made of transparent PET material.