Low-VOC (volatile organic compound) shading edge-covering adhesive tape used in vehicle-mounted display screen

Abstract

The utility model discloses a low VOC (Volatile Organic Compounds) shading edge-covering adhesive tape used in a vehicle-mounted display screen, which comprises a conductive substrate, a bio-based acrylic acid adhesive layer is arranged on one side of the conductive substrate, a transparent RPET (Resin Polyethylene Terephthalate)-based thin film layer is arranged on one side of the bio-based acrylic acid adhesive layer far away from the conductive substrate, a low VOC black conductive adhesive film layer is arranged on the other side of the conductive substrate, and the transparent RPET-based thin film layer is arranged on the other side of the conductive substrate. A recyclable release film layer is arranged on the side, away from the conductive base material layer, of the low-VOC black conductive adhesive film layer, the adhesive tape is more friendly to indoor air quality, harmful effects on the human body can be reduced, and the requirement of consumers for pursuing healthy life is met.

Description

Technical Field

[0001] The utility model relates to the field of adhesive tapes, in particular to a low-VOC light-shielding edge-wrapping adhesive tape used in a vehicle-mounted display screen. Background Art

[0002] With the increasing awareness of environmental protection, the market demand for sustainable development is also increasing. The tape industry is also committed to developing and promoting recyclable and degradable tape products to reduce the impact on the environment. Low-VOC tape has broad market development prospects due to its environmental protection, health and safety, and compliance with regulations. With the improvement of environmental awareness and the increase in consumer health needs, low-VOC tape is expected to be more widely used and promoted in the future market, becoming one of the trends in the development of the industry. Based on this prospect, the tapes currently used in the market are upgraded, and tapes made of recycled and bio-based materials are used. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a low-VOC light-shielding edge tape for use in a vehicle-mounted display screen, which is not only more friendly to indoor air quality, but also can reduce harmful effects on the human body.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a low-VOC light-shielding edging tape for a vehicle-mounted display screen, comprising a conductive substrate, a bio-based acrylic adhesive layer is arranged on one side of the conductive substrate, a transparent RPET-based film layer is arranged on the side of the bio-based acrylic adhesive layer away from the conductive substrate, a low-VOC black conductive adhesive film layer is arranged on the other side of the conductive substrate, and a recyclable release film layer is arranged on the side of the low-VOC black conductive adhesive film layer away from the conductive substrate layer.

[0005] Furthermore, the transparent RPET-based film layer is 100% environmentally friendly recycled polyester film.

[0006] Furthermore, the conductive substrate is a conductive cloth.

[0007] Furthermore, the bio-based acrylic adhesive layer has a thickness of 6-10 um.

[0008] Furthermore, the bio-based acrylic adhesive layer is plant-based glue.

[0009] The beneficial effect of the utility model is that the adhesive tape is not only more friendly to indoor air quality, but also can reduce harmful effects on human body, thus meeting the needs of consumers for pursuing a healthy life. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic structural diagram of a low-VOC light-shielding edging tape used in a vehicle-mounted display screen according to an embodiment of the present application.

[0011] Marked in the figure: 1. Transparent RPET-based film layer; 2. Bio-based acrylic adhesive layer; 3. Conductive cloth; 4. Low-VOC black conductive adhesive film layer; 5. Recyclable release film layer. DETAILED DESCRIPTION

[0012] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0013] like Figure 1 As shown, an embodiment of the present application discloses a low-VOC light-shielding edging tape for use in a vehicle-mounted display screen, comprising a conductive substrate, a bio-based acrylic adhesive layer 2 is provided on one side of the conductive substrate, a transparent RPET-based film layer 1 is provided on the side of the bio-based acrylic adhesive layer 2 away from the conductive substrate, a low-VOC black conductive adhesive film layer 4 is provided on the other side of the conductive substrate, and a recyclable release film layer 5 is provided on the side of the low-VOC black conductive adhesive film layer 4 away from the conductive substrate layer.

[0014] Specifically, the conductive substrate is a conductive cloth 3. In this structure, a low-VOC black conductive film is compounded on the other side of the conductive cloth 3. The low-VOC black conductive film and the conductive cloth 3 form a path that can conduct product ESD.

[0015] Meanwhile, the conductive fabric 3 is soft and has good bending, shielding and grounding applications.

[0016] Specifically, the low VOC black conductive film used in this structure can be used for screen edge shading due to its black property, and it can play a good shading effect. After experimental verification, the optical density OD of this tape is greater than 6.0. There is no light transmission under the light of a mobile phone flashlight, and the appearance of this tape is transparent on one side and black on the other side, and there are no concave and convex spots on the surface, which ensures the uniformity of the gloss of the finished product.

[0017] Specifically, the transparent RPET-based film layer 1 is a 100% environmentally friendly recycled polyester film, which can be purchased on the market. After the film made of this material cannot be used in the subsequent adhesive tape, the layer structure can be recycled separately and reused.

[0018] In this embodiment, the bio-based acrylic adhesive layer 2 is plant-based glue, which can also be purchased directly. The glue is synthesized from bio-based raw materials such as soybeans, trees, etc., and has a bio-based carbon content of 75% or more. This glue will not volatilize harmful substances when used, thereby reducing the impact on the environment during use.

[0019] In this embodiment, the thickness of the bio-based acrylic adhesive layer 2 is 6-10um, specifically 6um, 8um, 10um, etc. In this structure, such thickness setting can make the overall thickness of the tape moderate. If the thickness of the bio-based acrylic adhesive layer 2 is too thin, it will affect the flatness of the tape surface.

[0020] After experimental verification, this tape has the following performance characteristics:

[0021] 1. This car display screen uses low VOC shading tape, which has good shading effect, and the light density OD> 6.0. There is no light transmission when illuminated by a mobile phone flashlight.

[0022] 2. This car display screen uses low-VOC light-shielding edging tape, one side is transparent and the other side is black, with no concave or convex spots on the surface, ensuring the uniform gloss of the finished product.

[0023] 3. The low VOC light-shielding edging tape used in this car display has excellent peeling force. The peeling force of SUS304 board at room temperature is greater than 1800gf / 25mm, and no residual glue is left.

[0024] 4. The low VOC shading tape used in the vehicle display screen can hold a 1KG weight on the SUS304 board for more than 72 hours at room temperature and a 1000g weight on the SUS board for more than 24 hours at high temperature of 85°C.

[0025] 5. This car display screen uses low-VOC light-shielding edging tape, and the VOC test meets the indicators of the "Guidelines for Passenger Car Interior Air Quality Evaluation".

[0026] 6. This car display screen uses low VOC shading edging tape, which is low volatile. The material size is 50mm*90mm and is placed in an aluminum heat transfer container at 130℃ / 48H. The haze value of the PC board and glass board is less than 1.

[0027] 7. The low VOC shading edging tape used in this car display screen is easy to process and has strong operability.

[0028] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A low VOC light-shielding edge tape for vehicle-mounted display screens, characterized in that: The invention comprises a conductive substrate, wherein a bio-based acrylic adhesive layer (2) is arranged on one side of the conductive substrate, a transparent RPET-based film layer (1) is arranged on the side of the bio-based acrylic adhesive layer (2) away from the conductive substrate, a low-VOC black conductive adhesive film layer (4) is arranged on the other side of the conductive substrate, and a recyclable release film layer (5) is arranged on the side of the low-VOC black conductive adhesive film layer (4) away from the conductive substrate layer.

2. The low VOC light-shielding edge tape for vehicle-mounted display screens as claimed in claim 1, characterized in that: The transparent RPET-based film layer (1) is 100% environmentally friendly recycled polyester film.

3. The low VOC light-shielding edge tape for vehicle-mounted display screens as claimed in claim 1, characterized in that: The conductive substrate is a conductive cloth (3).

4. The low VOC light-shielding edge tape for vehicle-mounted display screens as claimed in claim 1, characterized in that: The thickness of the bio-based acrylic adhesive layer (2) is 6-10 um.

5. The low VOC light-shielding edge tape for vehicle-mounted display screens as claimed in claim 1, characterized in that: The bio-based acrylic adhesive layer (2) is plant-based glue.

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