A new sunshade curtain composite fabric structure

Abstract

The utility model discloses a novel sunshade curtain composite fabric structure, in turn including woven fabric layer, first PUR hot melt adhesive layer, TPU membrane layer, second PUR hot melt adhesive layer and decorative surface layer. The utility model has carried out the redesign to the existing sunshade curtain fabric structure of car, has promoted the temperature resistance of product significantly, has solved the edge tear problem of high -frequency welding technology fundamentally, has avoided the irreversible deformation problem of repeatedly winding simultaneously effectively, has guaranteed the product aesthetics while, has promoted the mechanical performance and durability of sunshade curtain greatly.

Description

Technical Field

[0001] This utility model relates to fabric structure, specifically to a novel composite fabric structure for sunshade curtains. Background Technology

[0002] As people's demands for automotive interior quality continue to rise, car sunshades are no longer just fulfilling their basic function of blocking sunlight; they are increasingly becoming key details reflecting the overall quality and comfort of a vehicle. Against this backdrop, the selection of materials, structural design, and manufacturing processes for sunshades are constantly being optimized and innovated. From initially simple functional accessories to today's interior components that balance aesthetics, durability, and ease of use, the technological evolution of sunshades fully reflects the automotive interior industry's pursuit of excellence. Especially in recent years, with the rapid popularization of new energy vehicles and the rise of the smart cockpit concept, sunshades, as a directly impactful... The pace of technological upgrades for key components of in-vehicle lighting environment and visual experience is accelerating.

[0003] See Figure 1 The existing automotive sunshade fabric structure includes a decorative layer 101, a TPU film layer 102, and a woven fabric layer 103. In actual use, after multiple roll-up and unroll-down operations, it is prone to irreversible plastic deformation, which affects the product's aesthetics and reduces its performance. Utility Model Content

[0004] In order to solve the above problems, this utility model provides a novel composite fabric structure for sunshade curtains.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A novel composite fabric structure for sunshades comprises, in sequence, a woven fabric layer, a first PUR hot melt adhesive layer, a TPU film layer, a second PUR hot melt adhesive layer, and a decorative surface layer.

[0006] In a preferred embodiment of this utility model, the thickness of the decorative surface layer is 0.38 mm - 0.55 mm, the weight of the decorative surface layer is 140 g / m² - 180 g / m², the tear strength of the decorative surface layer is ≥10 N in the warp direction and ≥13 N in the weft direction, and the 50 N dynamic elongation of the decorative surface layer is ≤6% in the warp direction and ≤35% in the weft direction.

[0007] In a preferred embodiment of this utility model, the thickness of the TPU film layer is 0.015 mm - 0.025 mm, the basis weight of the TPU film layer is 20 g / m² - 30 g / m², the melting point of the TPU film layer is 145℃ - 160℃, and the preferred TPU film layer is a black light-blocking film with a light-blocking rate of ≥90%.

[0008] In a preferred embodiment of the present invention, an anti-aging additive layer is provided on the TPU film layer.

[0009] In a preferred embodiment of this utility model, the thickness of the woven fabric layer is 0.15 mm - 0.25 mm, the weight of the woven fabric layer is 70 g / m² - 100 g / m², the tear strength of the woven fabric layer is ≥12 N in the warp direction and ≥15 N in the weft direction, and the 50 N dynamic elongation of the woven fabric layer is ≤3% in the warp direction and ≤6% in the weft direction.

[0010] The beneficial effects of this utility model are: This invention redesigns the existing structure of automotive sunshade fabric, significantly improving the product's temperature resistance and fundamentally solving the edge tearing problem caused by high-frequency welding. It also effectively avoids irreversible deformation caused by repeated rolling, greatly improving the mechanical properties and durability of the sunshade while ensuring the product's aesthetics. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 A structural diagram of existing automotive sunshade fabric; Figure 2 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the utility model will be further described below.

[0014] See Figure 2 The novel sunshade curtain composite fabric structure disclosed in this utility model includes, in sequence, a woven fabric layer 205, a first PUR hot melt adhesive layer 204, a TPU film layer 203, a second PUR hot melt adhesive layer 202, and a decorative surface layer 201.

[0015] The decorative surface layer 201 can be made of polyester knitted fabric or imitation suede fabric. The thickness of the decorative surface layer 201 is 0.38mm-0.55mm, the weight is 140g / m²-180g / m², the tear strength is ≥10N in the warp and ≥13N in the weft, and the 50N dynamic elongation is ≤6% in the warp and ≤35% in the weft.

[0016] The second PUR hot melt adhesive layer 202 is located between the TPU film layer 203 and the decorative layer 201, and is used for the lamination between the TPU film layer 203 and the decorative layer 201.

[0017] The second PUR hot melt adhesive layer 202 can specifically be a polyurethane reactive adhesive, which is pressed at 100-120℃ and has an adhesive application amount of 10-40g / m².

[0018] The thickness of the TPU film layer 203 is 0.015-0.025mm, the basis weight is 20-30g / m², and the melting point is 145-160℃; a black light-blocking film with a light-blocking rate of ≥90% is preferred.

[0019] In addition, an anti-aging additive layer may be provided on the TPU film layer 203. Specifically, the anti-aging additive layer may be a hindered amine light stabilizer, which can be used to improve the anti-aging performance of the TPU film layer 203.

[0020] The first PUR hot melt adhesive layer 204 is located between the woven fabric layer 205 and the TPU film layer 203, and is used for the conformation between the woven fabric layer 205 and the TPU film layer 203.

[0021] The first PUR hot melt adhesive layer 204 can specifically be a polyurethane reactive adhesive, which is pressed at 100-120℃ and has an adhesive application amount of 10-40g / m².

[0022] The woven fabric layer 205 can be made of high tear strength polyester fiber. The thickness of the woven fabric layer 205 is 0.15-0.25mm, the weight is 70-100g / m², the tear strength is ≥12N in the warp and ≥15N in the weft, and the 50N dynamic elongation is ≤3% in the warp and ≤6% in the weft.

[0023] In addition, the woven fabric layer 205 is also treated with UV protection (UPF50+).

[0024] Thus, by using a first PUR hot melt adhesive layer 204 to composite a woven fabric layer 205 with a TPU film layer 203 and a second PUR hot melt adhesive layer 202 to composite a TPU film layer 203 with a finishing layer 201, the temperature resistance of this application is significantly improved.

[0025] By specifically setting the thickness, basis weight, tear strength, and dynamic elongation of the woven fabric layer 205, TPU film layer 203, and decorative surface layer 201, the overall thickness of this application is 0.55-0.8mm, basis weight is 250-350g / m², tear strength is ≥15N in the warp and ≥20N in the weft, dynamic elongation is ≤2% in the warp and ≤5% in the weft, and the light-blocking rate reaches ≥95%. This gives the application excellent tear strength and low dynamic elongation, fundamentally solving the edge tearing problem caused by high-frequency welding process, and effectively avoiding irreversible deformation caused by repeated winding. While ensuring the aesthetics of the product, it greatly improves the mechanical performance and durability of the sunshade.

[0026] Below is a specific application example of this application: Decorative layer 201 is made of suede material: thickness 0.65mm; weight 156.4g / m²; tear strength: warp 11.25N, weft 14.09N; 50N dynamic elongation: warp 5.18%, weft 33.39%.

[0027] TPU film 203: thickness 0.021mm; basis weight: 25.3g / m²; melting point: 155℃; black light-blocking film with 8% light transmittance.

[0028] The woven fabric layer 205 is made of twisted polyester filament with a thickness of 0.19 mm, a weight of 81.7 g / m², a tear strength of 12.7 N in the warp and 15.67 N in the weft, and a 50 N dynamic elongation of 3.2% in the warp and 5.5% in the weft. The woven fabric layer 205 is treated with UV protection.

[0029] The woven fabric layer 205 and the TPU film layer 203 are laminated by a first PUR hot melt adhesive layer 204, with an adhesive content of 10g / m² and a temperature of 105℃.

[0030] Decorative layer 201 and TPU film layer 203 are laminated by a second PUR hot melt adhesive layer 202, with an adhesive content of 35g / m² and a temperature of 105℃.

[0031] Overall thickness of this application: 0.63 mm; basis weight: 309.5 g / m²; tear strength: 16.74 N in the warp and 0.72 N in the weft; 50 N dynamic elongation: 1.31% in the warp and 4.36% in the weft.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel composite fabric structure for sunshade curtains, characterized in that, It consists of, in sequence, a woven fabric layer, a first PUR hot melt adhesive layer, a TPU film layer, a second PUR hot melt adhesive layer, and a decorative surface layer; The thickness of the decorative surface layer is 0.38 mm - 0.55 mm, the weight of the decorative surface layer is 140 g / m² - 180 g / m², the tear strength of the decorative surface layer is ≥10 N in the warp direction and ≥13 N in the weft direction, and the 50 N dynamic elongation of the decorative surface layer is ≤6% in the warp direction and ≤35% in the weft direction.

2. The novel sunshade curtain composite fabric structure according to claim 1, characterized in that, The thickness of the TPU film layer: The TPU film has a thickness of 0.015 mm to 0.025 mm, a basis weight of 20 g / m² to 30 g / m², a melting point of 145℃ to 160℃, and a light-blocking rate of ≥90%.

3. The novel sunshade curtain composite fabric structure according to claim 2, characterized in that, The TPU film layer is provided with an anti-aging additive layer.

4. The novel sunshade curtain composite fabric structure according to claim 1, characterized in that, The thickness of the woven fabric layer is 0.15 mm - 0.25 mm, the weight of the woven fabric layer is 70 g / m² - 100 g / m², the tear strength of the woven fabric layer is ≥12 N in the warp direction and ≥15 N in the weft direction, and the 50 N dynamic elongation of the woven fabric layer is ≤3% in the warp direction and ≤6% in the weft direction.

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