Shading glue

Abstract

The utility model relates to the technical field of shading glue, in particular to shading glue which comprises a base body, a bonding layer is arranged on the base body, a release layer is attached to the surface of the bonding layer, and a plurality of breakpoints are evenly arranged on a cutting line of the release layer at intervals. The starting end of each breakpoint is connected with a starting part, and the starting parts are used for assisting in stripping the release layer from the adhesive layer, so that the effect of stripping the release layer from the adhesive layer is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of light-shielding glue, in particular to light-shielding glue. BACKGROUND

[0002] At present, the light-shielding glue is a light-shielding glue product with specific functions, which is usually stored in a light-shielding glue roll when stored. The light-shielding glue is widely used in the fields of electronic equipment, optical instruments, automobiles, lighting equipment and the like, and is used for preventing light leakage, reducing stray light interference, improving image quality, protecting sensitive elements and the like.

[0003] The existing light-shielding glue comprises a base body, the base body is usually attached with a sticking layer, the sticking layer can be firmly attached on various surfaces; a release layer is attached outside the sticking layer, and the release layer is used for protecting the sticking layer when the light-shielding glue is not used, so as to prevent the sticking layer from being polluted by dust, oil stains and the like impurities.

[0004] The prior art in the above has the following defects: when the release layer and the sticking layer are peeled off, since the release layer is flush with the notch of the sticking layer, it is difficult to peel off the release layer through the sticking layer. UTILITY MODEL CONTENT

[0005] In order to achieve the effect that the release layer is easily peeled off through the sticking layer, the application provides a light-shielding glue.

[0006] The above technical purpose of the application is realized by the following technical scheme:

[0007] The light-shielding glue comprises a base body and a sticking layer arranged on the base body, the surface of the sticking layer is attached with a release layer, a plurality of breakpoints are uniformly arranged on the cutting line of the release layer; the starting end of each breakpoint is connected with a starting part, and the starting part is used for assisting the release layer to be peeled off through the sticking layer.

[0008] By adopting the above scheme, the base body is made of PET (polyester) material, the PET (polyester) material has high strength, toughness and temperature resistance, and it has high dimensional stability and is not easy to deform under different environmental conditions, and is suitable for the fixing and light-shielding of LCD and backlight modules of various electronic equipment; the breakpoint is used for dividing the release layer into a plurality of parts, and the two adjacent parts are connected in a dashed line mode, when the sticking length is long, the release layer can be gradually peeled off and torn, and the operation is facilitated; since the starting part is arranged, when the release layer is separated from the sticking layer, the starting part is pinched by hand, and the release layer is pulled, so that the release layer is easily peeled off from the sticking layer.

[0009] Further, a crease is arranged at the connection position of the starting part and the release layer, so that the starting part is attached to the release layer.

[0010] By adopting the above scheme, the starting part is attached to the release layer, so that when the light-shielding adhesive is stored in a roll, the gap between adjacent two layers can be reduced, and the light-shielding adhesive between each layer is more attached, avoiding loose of the light-shielding adhesive.

[0011] Further, the surface of the release layer is provided with a receiving groove corresponding to each starting part.

[0012] By adopting the above scheme, the starting part is attached to the release layer, so that when the light-shielding adhesive is stored in a roll, the gap between adjacent two layers can be reduced, and the light-shielding adhesive between each layer is more attached, avoiding loose of the light-shielding adhesive.

[0013] Further, the side away from the crease of each receiving groove is provided with a peeling groove.

[0014] By adopting the above scheme, the peeling groove is provided to facilitate the user to pinch the starting part.

[0015] Further, a black ink layer is arranged between the substrate and the adhesive layer, and the black ink layer is a viscous coating layer formed by mixing carbon black and a binder such as resin.

[0016] By adopting the above scheme, the black ink layer can effectively block the transmission of light, providing good light-shielding effect for the part that needs to be shielded, such as screen packaging of electronic devices, shielding of some sensitive elements of circuit board, etc.

[0017] Further, a metal plating layer is arranged between the black ink layer and the adhesive layer, and the metal plating layer is used to reflect light.

[0018] By adopting the above scheme, it has the following effects: first, metal has high reflectivity, which can reflect most of the light incident on the surface of the light-shielding adhesive back, reducing the transmission of light. This can effectively block the propagation of light and enhance the light-shielding effect of the light-shielding adhesive, preventing light from penetrating from one side of the light-shielding adhesive to the other side and avoiding the occurrence of light leakage; second, the metal plating layer can increase the overall strength and wear resistance of the light-shielding adhesive. Metal materials have high hardness and strength, which can enhance the tensile, tear and wear resistance of the light-shielding adhesive, making the light-shielding adhesive more durable and less likely to be damaged during use.

[0019] Further, an antistatic layer is arranged between the adhesive layer and the metal plating layer.

[0020] By adopting the above scheme, when the light-shielding adhesive is used for electronic components, the antistatic layer can prevent static electricity from being generated or quickly conducted away, avoiding the harm of static electricity to electronic components, thereby protecting the normal operation and service life of electronic devices.

[0021] Further, the antistatic layer material is metal nanoparticles.

[0022] By adopting the above scheme, the metal nanoparticles have good conductivity and can quickly conduct and dissipate charges. This helps to conduct the static electricity generated on the surface of the object to the ground or other grounded objects in time, thereby avoiding the accumulation and discharge of static electricity.

[0023] In summary, the present application has the following technical effects:

[0024] By setting the light shielding adhesive, the base is made of PET (polyester) material, which has high strength, toughness and temperature resistance, and its dimensional stability is high and is not easy to deform under different environmental conditions, and is suitable for fixing, light shielding and other purposes of LCD and backlight modules of various electronic devices; the breakpoint, i.e., the release layer is divided into several parts, and the two adjacent parts are connected in a dotted line form, when the length of the adhesive layer is long, the release layer can be peeled off step by step, which is convenient to operate; because the starting part is set, when the release layer is separated from the adhesive layer, the starting part is pinched by hand, and the release layer is pulled, which achieves the effect of facilitating the peeling of the release layer from the adhesive layer.

[0025] By setting the accommodating groove, the starting part is accommodated in the accommodating groove, so that the starting part is flush with the surface of the release layer, further reducing the gap between adjacent two layers when the light shielding adhesive is wound and stored, and thus the light shielding adhesive is more closely attached between layers, avoiding loose light shielding adhesive.

[0026] By setting the peeling groove, the peeling groove is set, which facilitates the pinching of the starting part by hand. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic view of the light shielding adhesive of the present application;

[0028] Figure 2 is a structural schematic view of the light shielding adhesive of the present application;

[0029] Figure 3 is a structural schematic view of the release layer of the present application.

[0030] In the figure, 1 is a base, 2 is an adhesive layer, 3 is a release layer, 31 is a breakpoint, 32 is a starting part, 33 is an accommodating groove, 34 is a peeling groove, 4 is a black ink layer, 5 is a metal plating layer, and 6 is an antistatic layer. DETAILED DESCRIPTION

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] REFERENCE Figure 1The light-shielding adhesive provided by the embodiment comprises a base body 1, a sticking layer 2 and a release layer 3. The sticking layer 2 is evenly coated on the surface of the base body 1 and can be firmly attached to various surfaces. The release layer 3 is attached to the sticking layer 2 and is used to protect the sticking layer 2 when the light-shielding adhesive is not in use, preventing the sticking layer 2 from being contaminated by dust, oil stains and other impurities.

[0033] With reference to Figures 1-2 In the embodiment, the sticking layer 2 is made of pressure-sensitive adhesive material. The pressure-sensitive adhesive has good sticking performance and high adhesion to various materials, and can firmly attach the light-shielding adhesive to the surface of the object to be attached. In the embodiment, the material of the release layer 3 can be selected from polyethylene terephthalate (PET), polypropylene (PP), polyethylene (PE), glassine paper and silicone oil paper.

[0034] With reference to Figures 1-2 The black ink layer 4 is arranged between the base body 1 and the sticking layer 2. The black ink layer 4 is made of a viscous material formed by mixing carbon black and a binder such as resin, and is evenly applied to the surface of the base body 1 to make it tightly adhere to the base layer 1. The black ink layer 4 can effectively block the transmission of light and provide good light-shielding effect for the part that needs to be shaded.

[0035] With reference to Figures 1-2 A metal plating layer 5 is arranged between the black ink layer 4 and the sticking layer 2, and is attached to the black ink layer 4 by using the viscosity of the black ink layer 4. Metal has high reflectivity and can reflect most of the light shining on the surface of the light-shielding adhesive back, reducing the transmission of light. This can effectively block the propagation of light and enhance the light-shielding effect of the light-shielding adhesive. In the embodiment, the metal material of the metal plating layer 5 is preferably aluminum, which has the advantages of relatively low cost, light weight and easy processing. In the light-shielding adhesive, the aluminum plating layer can provide good light-shielding performance and has high reflectivity to light, which can effectively block the transmission of light. Moreover, aluminum has relatively active chemical properties and can easily form an aluminum oxide film in the air. This oxide film can improve the corrosion resistance and wear resistance of the metal plating layer 5, so that the metal plating layer 5 can maintain good performance in various environments.

[0036] With reference to Figures 1-2 An antistatic layer 6 is arranged between the metal plating layer 5 and the sticking layer 2, and is attached to the metal plating layer 5 and the sticking layer 2 on both sides. The antistatic layer 6 is attached to the sticking layer 2 by using the viscosity of the sticking layer 2. Pressure-sensitive adhesive is arranged between the antistatic layer 6 and the metal plating layer 5 to tightly attach them together.

[0037] With reference to Figures 2-3, the cutting line of the release layer 3 is uniformly provided with a plurality of breakpoints 31; in the embodiment, the breakpoints 31 have the effect of dividing the release layer 3 into a plurality of parts, and the two adjacent parts are connected in a dotted line manner; the setting facilitates the release layer 3 to be peeled off by the adhesive layer 2 in sections when the length of the light shielding adhesive is relatively long, and the position of the light shielding adhesive is controlled.

[0038] Referring to Figures 2-3 The starting end of each breakpoint 31 is connected with a starting part 32, the starting part 32 is used for assisting the release layer 3 to be peeled off by the adhesive layer 2; the surface of the release layer 3 is provided with a receiving groove 33 corresponding to each starting part 32; the connection position of the starting part 32 and the release layer 3 is provided with a crease, which facilitates the starting part 32 to be received into the receiving groove 33; the side, away from the crease, of the receiving groove 33 is provided with a peeling groove 34, and the peeling groove 34 facilitates the starting part 32 to be pinched by the hand.

[0039] The implementation principle of the light shielding adhesive in the embodiment is as follows: the base body 1 is made of PET material, the PET material has high strength, toughness and temperature resistance, and has high dimensional stability and is not easy to deform under different environmental conditions; because the black ink layer 4 is arranged, the black ink layer 4 can effectively block the transmission of light, and provide good light shielding effect for the part that needs to be shaded; because the metal plating layer 5 is arranged, the metal has high reflectivity, and can reflect most of the light irradiated to the surface of the light shielding adhesive back, reducing the transmission of light; because the anti-static layer 6 is arranged, when the light shielding adhesive is used for electronic components, the anti-static layer 6 can prevent static electricity from being generated on the light shielding adhesive or quickly conduct the generated static electricity away, avoiding the harm of static electricity to the electronic components; when the light shielding adhesive is used, the starting part 32 is pinched through the receiving groove 33, then the release layer 3 is peeled off through the adhesive layer 2, and the adhesive layer 2 is pasted to the specified position; when the length of the object to be pasted is relatively long, a part of the release layer 3 is first peeled off through the adhesive layer 2, the adhesive layer 2 is pasted to the object, then the position of the light shielding adhesive to be pasted next is confirmed, the next part of the release layer 3 is peeled off through the adhesive layer 2, and the object is pasted step by step.

[0040] The specific embodiment is only an explanation of the application, and is not a limitation of the application, and those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, but as long as the modifications are within the scope of the claims of the application, they are protected by the patent law.

Claims

1. A light-shielding adhesive, characterized in that: The invention comprises a base (1), an adhesive layer (2) provided on the base (1), a release layer (3) attached to the surface of the adhesive layer (2), a plurality of breakpoints (31) evenly spaced on a cutting line of the release layer (3); a starting end of each breakpoint (31) is connected to a starting portion (32), and the starting portion (32) is used to assist in peeling the release layer (3) through the adhesive layer (2).

2. The light-shielding adhesive according to claim 1, characterized in that: A fold is pressed at the connection between the starting portion (32) and the release layer (3), so that the starting portion (32) and the release layer (3) are in contact with each other.

3. The light-shielding adhesive according to claim 2, characterized in that: The surface of the release layer (3) is provided with a receiving groove (33) corresponding to each starting portion (32), and the starting portion (32) is received in the receiving groove (33).

4. The light-shielding adhesive according to claim 3, characterized in that: A stripping groove (34) is provided on the side of each receiving groove (33) facing away from the fold.

5. The light-shielding adhesive according to claim 1, characterized in that: A black ink layer (4) is provided between the substrate (1) and the adhesive layer (2).

6. The light-shielding adhesive according to claim 5, characterized in that: A metal coating layer (5) is provided between the black ink layer (4) and the adhesive layer (2), and the metal coating layer (5) is used for reflecting light.

7. The light-shielding adhesive according to claim 6, characterized in that: An antistatic layer (6) is provided between the adhesive layer (2) and the metal coating layer (5).

8. The light-shielding adhesive according to claim 7, characterized in that: The antistatic layer (6) is made of metal nanoparticles.

Images