High-temperature-resistant shading adhesive tape

Abstract

The utility model discloses a high temperature resistant shading adhesive tape, relates to shading adhesive tape technical field, the high temperature resistant shading adhesive tape comprises a protection layer, a bonding layer, a base layer, a temperature resistant shading layer and a protection layer which are laminated in order from bottom to top, the temperature resistant shading layer comprises two isolation layers, and the two isolation layers are preferably PE films, a temperature-resistant plate is arranged on the inner sides of the two isolating layers, a shading coating is coated between the temperature-resistant plate and the isolating layers, the shading coating is preferably an ink coating, the upper end faces of the isolating layers and the lower end face of the protective layer are in hot-melting press fit, the lower end faces of the isolating layers and the upper end face of the base layer are in hot-melting press fit, the lower end face of the base layer is bonded with the bonding layer, and the bonding layer is bonded with the protective layer. And the lower end surface of the bonding layer is bonded with the protective layer. The high-temperature-resistant shading adhesive tape is high in high-temperature resistance, good in shading effect and wide in application range.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of light shielding adhesive tape, specifically to a high temperature resistant light shielding adhesive tape. BACKGROUND

[0002] Light shielding adhesive tape, also called non-transparent adhesive tape or light shielding material, is a kind of adhesive material that can be used for LED and LCD display frame edge covering, shielding light source and blocking light source penetration.

[0003] The light shielding adhesive tape adopts special imported environment-friendly substrate, and the surface is treated specially to realize partial light shielding or complete light shielding. For example, the light shielding adhesive tape disclosed in CN206127199U comprises a glue layer, a base layer, a light shielding unit layer and a separation protection layer arranged in sequence. The base layer is a transparent PET film layer, the PET film layer is pressed to have a plurality of grooves, the light shielding unit comprises a white milar tape layer and a black light shielding ink layer, the black light shielding ink layer is attached to the white milar tape layer, the white milar tape layer is provided with a protrusion corresponding to the groove, and the upper and lower surfaces of the white milar tape layer are both provided with protrusions, and the protrusions are matched with the grooves of the black light shielding ink layer and the transparent PET film layer. The structure is stable, and the service life is high. However, the transparent adhesive tape has poor high temperature resistance, cannot be used in high temperature environment, and has small application range.

[0004] Therefore, in view of the above problems, it is necessary for the applicant to design a high temperature resistant light shielding adhesive tape to solve the problems. SUMMARY

[0005] The utility model discloses a kind of high temperature resistant light shielding adhesive tapes to solve the problems mentioned in above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of high temperature resistant light shielding adhesive tape, including by lower and upper sequentially layering setting protection layer, adhesive layer, base layer, temperature resistant light shielding layer and protective layer, the temperature resistant light shielding layer includes two isolation layers, and two isolation layers are preferably PE film, the inner side of two the isolation layer is provided with temperature resistant plate, and temperature resistant plate and isolation layer between are coated with light shielding coating, light shielding coating is preferably ink coating, the upper end surface of the isolation layer and the lower end surface of protective layer are fused and pressed, the lower end surface of the isolation layer and the upper end surface of base layer are fused and pressed, the lower end surface of base layer and adhesive layer are bonded, and the lower end surface of adhesive layer and protection layer are bonded.

[0007] Further, the temperature resistant plate is high-temperature-resistant foamed plastic plate, and the foamed plastic plate is preferably polymethacrylimide foamed plastic plate.

[0008] Through the above structural design, the polymethacrylimide foam plastic board is a material with excellent high-temperature resistance. It can withstand high temperatures up to 240°C and can be co-cured with other materials at high temperatures to prepare high-performance multi-layer structural composite materials, thereby improving the high-temperature resistance of the blackout tape and expanding the scope of application of the blackout tape.

[0009] Furthermore, the protective layer is an easy-to-tear film, and the easy-to-tear film is preferably a PET release film.

[0010] Through the above structural design, the PET release film plays an isolating and protective role on the adhesive layer, preventing the adhesive layer from being contaminated and ensuring the adhesion of the adhesive layer.

[0011] Furthermore, the adhesive layer is a self-adhesive adhesive, and the self-adhesive adhesive is preferably an acrylic adhesive.

[0012] Through the above structural design, the acrylic adhesive can be quickly cured at room temperature with a fast curing speed. The adhesive film formed after curing is colorless and transparent with high gloss. In addition, the chemical properties of the acrylic adhesive are stable and it is easy to tear off without leaving any residual adhesive.

[0013] Furthermore, the base layer is a transparent film, and the transparent film is preferably a transparent PET polyester film.

[0014] Through the above structural design, the PET polyester film has good transparency, gloss, low haze, high gloss, and excellent mechanical properties, good toughness, high tensile strength and impact strength.

[0015] Furthermore, the protective layer is a high-toughness transparent film, and the high-toughness transparent film is preferably a PET protective film.

[0016] Through the above structural design, the PET protective film is a packaging film with relatively comprehensive performance. It has good transparency, gloss, good air tightness and excellent mechanical properties, which is convenient for improving the service life and comfort of the light-shielding tape.

[0017] Compared with the prior art, the beneficial effects of the utility model are: the high temperature resistant light-shielding tape has strong high temperature resistance, good light-shielding effect, strong toughness, and a wide range of applications. The specific contents are as follows:

[0018] 1. The heat-resistant light-shielding layer in the high-temperature resistant light-shielding tape comprises two isolation layers, and the two isolation layers are preferably PE films. A heat-resistant plate is provided on the inner side of the two isolation layers, and a light-shielding coating is coated between the heat-resistant plate and the isolation layer. The light-shielding coating is preferably an ink coating, and the heat-resistant plate is preferably a polymethacrylimide foam plastic board. The polymethacrylimide foam plastic board is a material with excellent high-temperature resistance and can withstand high temperatures of up to 240°C. It can be co-cured with other materials at high temperature to prepare a high-performance multi-layer structure composite material, thereby improving the high-temperature resistance of the light-shielding tape.

[0019] 2. The light-shielding coating in the high-temperature resistant light-shielding tape is preferably ink coating. The ink coating is not easy to fall off when soaked in the foam plastic board, and the PE film is convenient for isolating the ink, so that the ink is evenly dispersed, thereby improving the light-shielding ability of the light-shielding tape.

[0020] 3. The protective layer in the high-temperature resistant light-shielding tape is preferably a PET release film. The PET release film plays an isolating and protective role on the adhesive layer, preventing the adhesive layer from being contaminated, ensuring the viscosity of the adhesive layer, thereby improving the storage time of the light-shielding tape and avoiding waste of resources. Among them, the adhesive layer is preferably an acrylic adhesive. Acrylic adhesive can be quickly cured at room temperature with a fast curing speed. The film formed after curing is colorless and transparent with high gloss. In addition, the chemical properties of acrylic adhesive are stable and easy to tear off without leaving residual adhesive, thereby improving the applicability and comfort of the light-shielding tape.

[0021] 4. The high-temperature resistant shading tape comprises a base layer and a protective layer. The base layer is preferably a transparent PET polyester film. The PET polyester film has good transparency, gloss, low haze, high gloss, and excellent mechanical properties, good toughness, high tensile strength and impact strength. The protective layer is preferably a PET protective film. The PET protective film has good transparency, gloss, good air tightness and excellent mechanical properties, thereby improving the toughness and pressure resistance of the shading tape, long service life, and high comfort in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Fig. 1 This is a schematic diagram of the overall split structure of the utility model;

[0023] Fig. 2 This is a schematic diagram of the structure of the heat-resistant light-shielding layer of the utility model;

[0024] Fig. 3 It is a schematic diagram of the overall layered structure of the utility model.

[0025] In the figure: 1. Protective layer; 2. Adhesive layer; 3. Base layer; 4. Heat-resistant light-shielding layer; 5. Protective layer; 6. Isolation layer; 7. Light-shielding coating; 8. Heat-resistant board. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] like Figs. 1-3The utility model discloses a kind of light-shielding adhesive tapes of high temperature resistance, including protective layer 1, adhesive layer 2, base layer 3, temperature-resistant light-shielding layer 4 and protective layer 5 from below to above are sequentially stacked, temperature-resistant light-shielding layer 4 includes two isolation layers 6, and two isolation layers 6 preferably PE film, the inside of two isolation layers 6 is provided with temperature-resistant plate 8, and temperature-resistant plate 8 and isolation layer 6 between are coated with shading coating 7, shading coating 7 preferably ink coating, the upper end surface of isolation layer 6 and the lower end surface of protective layer 5 hot melt pressure bonding, the lower end surface of isolation layer 6 and the upper end surface of base layer 3 hot melt pressure bonding, the lower end surface of base layer 3 and adhesive layer 2 are bonded, the lower end surface of adhesive layer 2 and protective layer 1 are bonded, temperature-resistant plate 8 is high temperature resistant foam plastic plate, foam plastic plate preferably is polymethyl methacrylimide foam plastic plate.

[0028] Through the above structural design, the temperature-resistant light-shielding layer 4 in the light-shielding adhesive tape of high temperature resistance includes two isolation layers 6, and two isolation layers 6 preferably PE film, the inside of two isolation layers 6 is provided with temperature-resistant plate 8, and temperature-resistant plate 8 and isolation layer 6 between are coated with shading coating 7, shading coating 7 preferably ink coating, temperature-resistant plate 8 preferably polymethyl methacrylimide foam plastic plate, polymethyl methacrylimide foam plastic plate is a kind of material with excellent high temperature resistance, can withstand high temperature up to 240 DEG C, can be prepared with other materials high temperature co-curing high-performance multilayer structure composite, to improve the high temperature resistance of light-shielding adhesive tape, shading coating 7 preferably ink coating, ink coating is not easy to fall off on foam plastic plate, and PE film is easy to isolate ink, so that ink is uniformly dispersed, to improve the light-shielding capacity of light-shielding adhesive tape.

[0029] Protective layer 1 is easy-to-tear film, easy-to-tear film preferably PET release film, adhesive layer 2 is not dry adhesive, not dry adhesive preferably acrylic adhesive, PET release film plays the role of isolation protection to adhesive layer 2, prevents adhesive layer 2 from being contaminated, ensures the tackiness of adhesive layer 2, to improve the shelf life of light-shielding adhesive tape, avoid resource waste, wherein adhesive layer 2 preferably acrylic adhesive, acrylic adhesive can be cured at room temperature quickly, the curing speed is fast, the film formed after curing is colorless and transparent, high gloss, and the chemical properties of acrylic adhesive are stable, easy to tear, no residual glue, to improve the application comfort of light-shielding adhesive tape.

[0030] The base layer 3 is a transparent film, preferably a transparent PET polyester film, and the protective layer 5 is a high-toughness transparent film, preferably a PET protective film. The PET polyester film has good transparency, gloss, low haze, high gloss, excellent mechanical properties, good toughness, high tensile strength and impact strength. The PET protective film has good transparency, gloss, good airtightness and excellent mechanical properties, thereby improving the toughness and pressure resistance of the light-shielding adhesive tape, prolonging the service life and improving the comfort level.

[0031] Based on the above ideal embodiments of the present application, the related personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content of the specification, and must be determined by the scope of the claims.

Claims

1. A high temperature resistant light shielding tape, characterized in that: The invention comprises a protective layer (1), an adhesive layer (2), a base layer (3), a heat-resistant light-shielding layer (4) and a protective layer (5) which are stacked in sequence from bottom to top, wherein the heat-resistant light-shielding layer (4) comprises two isolation layers (6), and the two isolation layers (6) are PE films, a heat-resistant plate (8) is provided on the inner side of the two isolation layers (6), and a light-shielding coating (7) is coated between the heat-resistant plate (8) and the isolation layer (6), and the light-shielding coating (7) is an ink coating, the upper end surface of the isolation layer (6) is hot-melt-pressed to the lower end surface of the protective layer (5), the lower end surface of the isolation layer (6) is hot-melt-pressed to the upper end surface of the base layer (3), the lower end surface of the base layer (3) is bonded to the adhesive layer (2), and the lower end surface of the adhesive layer (2) is bonded to the protective layer (1).

2. The high temperature resistant light shielding tape according to claim 1, characterized in that: The temperature-resistant plate (8) is a high-temperature-resistant foam plastic plate, and the foam plastic plate is a polymethacrylimide foam plastic plate.

3. The high temperature resistant light shielding tape according to claim 1, characterized in that: The protective layer (1) is an easy-to-tear film, and the easy-to-tear film is a PET release film.

4. The high temperature resistant light shielding tape according to claim 1, characterized in that: The adhesive layer (2) is a self-adhesive adhesive, which is an acrylic adhesive.

5. The high temperature resistant light shielding tape according to claim 1, characterized in that: The base layer (3) is a transparent film, and the transparent film is a transparent PET polyester film.

6. The high temperature resistant light shielding tape according to claim 1, characterized in that: The protective layer (5) is a high-toughness transparent film, and the high-toughness transparent film is a PET protective film.

Images