High-temperature-resistant and residue-free positioning adhesive tape for photovoltaic back plate

Abstract

The utility model discloses a high-temperature-resistant and residue-free positioning adhesive tape for a photovoltaic back plate, and relates to the technical field of adhesive tapes. The adhesive tape comprises an adhesive tape body, the adhesive tape body comprises a base layer, an inner adhesive layer and a group of outer adhesive layers, a decorative layer and an upper thermal insulation layer are sequentially compounded on the lower surface of the base layer, each outer adhesive layer comprises a first lining, a lower thermal insulation layer is compounded on the upper surface of each first lining, and each lower thermal insulation layer is compounded on the lower surface of the corresponding upper thermal insulation layer. The two outer rubber layers are arranged on the edges of the two sides of the upper heat insulation layer respectively, low-viscosity rubber is arranged on the lower surface of the first lining layer, and the inner rubber layer comprises a second lining layer. The positioning adhesive tape is composed of the three combined layers of the base layer, the inner adhesive layer and the outer adhesive layer, the three combined layers can be combined after being subjected to composite production and slitting respectively, production is facilitated, meanwhile, due to the design of the heat insulation layer, the efficient high-temperature-resistant effect is achieved, and the service life of the adhesive tape is prolonged. And an inverted U-shaped protection area can be formed to carry out temperature isolation on the high-viscosity colloid on the inner adhesive layer, so that the problem of colloid residue is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of adhesive tapes, and particularly relates to a high-temperature resistant and residue-free positioning adhesive tape for a photovoltaic back plate. Background Art

[0002] The positioning tape for photovoltaic back panels serves as a positioning mark. However, if affected by temperature, the adhesive layer may melt and soften, resulting in colloid residue on the back panel, which is not conducive to operation and cleaning.

[0003] At the same time, the positioning tape needs to be easy to tear for easy cutting. However, the current positioning tape needs to be equipped with a shear for separation, which is not conducive to the operation of the staff. If it is torn directly, the tape is easily stretched and deformed, affecting the use effect.

[0004] Therefore, designing a positioning tape that is resistant to high temperatures and easy to tear is a problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The utility model aims to provide a high-temperature resistant and residue-free photovoltaic back panel positioning tape, which comprises three combined layers of a base layer, an inner rubber layer and an outer rubber layer. The three combined layers can be separately compounded and cut and then combined, which is beneficial to production. At the same time, through the design of the heat insulation layer, an inverted U-shaped protection zone can be formed to isolate the temperature of the high-viscosity colloid on the inner rubber layer, thereby playing a highly efficient high-temperature resistant role and reducing the problem of colloid residue.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a high temperature resistant and residue-free photovoltaic back sheet positioning tape, comprising a tape body, wherein the tape body comprises a base layer, an inner rubber layer and a group of outer rubber layers;

[0008] The lower surface of the base layer is compounded with a decorative layer and an upper heat insulation layer in sequence;

[0009] The outer rubber layer comprises a first lining layer, the upper surface of the first lining layer is compounded with a lower thermal insulation layer, the lower thermal insulation layer is compounded on the lower surface of the upper thermal insulation layer, the two outer rubber layers are respectively arranged at the edges of both sides of the upper thermal insulation layer, and the lower surface of the first lining layer is provided with a low-viscosity colloid;

[0010] The inner rubber layer comprises a second lining layer, the upper surface of the second lining layer is compounded on the lower surface of the upper thermal insulation layer and is located between the two outer rubber layers, and the lower surface of the second lining layer is compounded with a high-viscosity colloid;

[0011] The width of the inner rubber layer is 5-9 times the width of the outer rubber layer, and the thickness of the low-viscosity colloid is one-third of the thickness of the high-viscosity colloid;

[0012] The outer surface of the tape body is evenly spaced with a plurality of easy-tear indentations, the easy-tear indentations extend to the position of the upper thermal insulation layer, and the edges of both sides of the tape body are evenly spaced with a plurality of notches connected to the easy-tear indentations.

[0013] Furthermore, a reinforcement layer is compounded between the decorative layer and the upper heat-insulating layer, and the reinforcement layer is a kraft paper layer or a glass fiber mesh layer.

[0014] Furthermore, the tearable indentation passes through the reinforcement layer but not the upper thermal insulation layer.

[0015] Furthermore, the notch runs through the base layer and the outer rubber layer, and the width of the notch is smaller than the width of the outer rubber layer.

[0016] Furthermore, the decorative layer is a color coating layer, a color film layer, or a pattern printing layer.

[0017] Furthermore, the upper thermal insulation layer and the lower thermal insulation layer are both PET film layers.

[0018] The utility model has the following beneficial effects:

[0019] 1. The utility model forms a positioning tape through three combined layers of a base layer, an inner rubber layer and an outer rubber layer. The three combined layers can be separately compounded and cut and then combined, which is convenient for production. At the same time, through the design of the heat insulation layer, it plays an efficient high temperature resistance role, and can form an inverted U-shaped protection area to isolate the temperature of the high-viscosity colloid on the inner rubber layer, thereby reducing the problem of colloid residue.

[0020] 2. The utility model mainly provides the tightness of the positioning tape when pasting through the inner rubber layer. The design of the outer rubber layer with thinner thickness and lower viscosity can reduce the problem of colloid residue on the side of the positioning tape. At the same time, it is conducive to lifting the side of the tape, which is convenient for removing the positioning tape. The side of the positioning tape has a lower viscosity and can be used for repeated positioning during the positioning process. That is, when the positioning tape is pasted, the outer rubber layer on the side of the tape is used in advance to repeatedly and accurately locate and confirm the installation position of the tape. After the final position is confirmed, it is pasted to the back panel installation position through the inner rubber layer.

[0021] 3. The utility model is designed with easy-to-tear indentations and notches, which is convenient for tearing and cutting the positioning tape on the tape roll. No tape cutter is required, which is convenient for the staff to operate. At the same time, the tearing effect is good and the quality of the positioning tape after cutting is not affected.

[0022] 4. The utility model can improve the strength of the tape through the design of the reinforcement layer, while ensuring the strength of the tape on both sides of the easy-tear indentation, ensuring that there will be no offset problems during the tearing process, and ensuring the state of the positioning tape after it is torn off.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a schematic structural diagram of a high temperature resistant and residue-free photovoltaic back panel positioning tape of the utility model;

[0026] Figure 2 It is a cross-sectional view of the structure at the position of the easy-tear indentation;

[0027] Figure 3 A top view of the structure of the tape body with easy-tear indentations and notches;

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1-base layer, 2-inner rubber layer, 3-outer rubber layer, 4-easy-tear indentation, 5-notch, 101-decorative layer, 102-upper thermal insulation layer, 103-reinforcement layer, 201-second lining layer, 202-high viscosity colloid, 301-first lining layer, 302-lower thermal insulation layer, 303-low viscosity colloid. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1-3 As shown, the utility model is a high temperature resistant and residue-free photovoltaic back panel positioning tape, comprising a tape body, wherein the tape body comprises a base layer 1, an inner adhesive layer 2 and a group of outer adhesive layers 3;

[0032] The lower surface of the base layer 1 is compounded with a decorative layer 101 and an upper heat insulating layer 102 in sequence;

[0033] The outer rubber layer 3 includes a first lining layer 301, the upper surface of the first lining layer 301 is compounded with a lower thermal insulation layer 302, the lower thermal insulation layer 302 is compounded on the lower surface of the upper thermal insulation layer 102, two outer rubber layers 3 are respectively arranged at the edges of both sides of the upper thermal insulation layer 102, and a low-viscosity colloid 303 is provided on the lower surface of the first lining layer 301;

[0034] The inner rubber layer 2 includes a second lining layer 201, the upper surface of the second lining layer 201 is compounded on the lower surface of the upper thermal insulation layer 102 and is located between the two outer rubber layers 3, and the lower surface of the second lining layer 201 is compounded with a high-viscosity colloid 202;

[0035] The width of the inner rubber layer 2 is 5-9 times the width of the outer rubber layer 3, and the thickness of the low-viscosity colloid 303 is one third of the thickness of the high-viscosity colloid 202;

[0036] The outer surface of the tape body is evenly spaced with a plurality of easy-tear indentations 4, which extend to the upper insulation layer 102, and the edges of both sides of the tape body are evenly spaced with a plurality of notches 5 connected to the easy-tear indentations 4.

[0037] Among them Figure 1-2 As shown, a reinforcement layer 103 is compounded between the decoration layer 101 and the upper heat insulation layer 102 , and the reinforcement layer 103 is a kraft paper layer or a glass fiber mesh layer.

[0038] Among them Figure 2 As shown, the tear mark 4 penetrates the reinforcement layer 103 but does not penetrate the upper insulation layer 102 .

[0039] The notch 5 penetrates the base layer 1 and the outer rubber layer 3 , and the width of the notch 5 is smaller than the width of the outer rubber layer 3 .

[0040] The decoration layer 101 is a color coating layer, a color film layer, or a pattern printing layer.

[0041] Wherein, the upper heat insulation layer 102 and the lower heat insulation layer 302 are both PET film layers.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high temperature resistant and residue-free photovoltaic backsheet positioning tape, characterized in that: The adhesive tape body comprises a base layer (1), an inner rubber layer (2) and a group of outer rubber layers (3); The lower surface of the base layer (1) is compounded with a decorative layer (101) and an upper heat insulation layer (102) in sequence; The outer rubber layer (3) comprises a first lining layer (301), the upper surface of the first lining layer (301) is compounded with a lower thermal insulation layer (302), the lower thermal insulation layer (302) is compounded on the lower surface of the upper thermal insulation layer (102), the two outer rubber layers (3) are respectively arranged at the edges of both sides of the upper thermal insulation layer (102), and the lower surface of the first lining layer (301) is provided with a low-viscosity colloid (303); The inner rubber layer (2) comprises a second lining layer (201), the upper surface of the second lining layer (201) is compounded on the lower surface of the upper thermal insulation layer (102) and is located between the two outer rubber layers (3), and the lower surface of the second lining layer (201) is compounded with a high-viscosity colloid (202); The width of the inner rubber layer (2) is 5-9 times the width of the outer rubber layer (3), and the thickness of the low-viscosity colloid (303) is one third of the thickness of the high-viscosity colloid (202); The outer surface of the tape body is provided with a plurality of easy-tear indentations (4) at even intervals, the easy-tear indentations (4) extending to the position of the upper thermal insulation layer (102), and the edges of both sides of the tape body are provided with a plurality of notches (5) connected to the easy-tear indentations (4) at even intervals.

2. The high temperature resistant and residue-free photovoltaic backsheet positioning tape according to claim 1, characterized in that: A reinforcement layer (103) is composited between the decorative layer (101) and the upper heat insulation layer (102), and the reinforcement layer (103) is a kraft paper layer or a glass fiber mesh layer.

3. The high temperature resistant and residue-free photovoltaic backsheet positioning tape according to claim 2, characterized in that: The easy-tear indentation (4) penetrates the reinforcement layer (103) but does not penetrate the upper heat insulation layer (102).

4. The high temperature resistant and residue-free photovoltaic backsheet positioning tape according to claim 2, characterized in that: The notch (5) penetrates the base layer (1) and the outer rubber layer (3), and the width of the notch (5) is smaller than the width of the outer rubber layer (3).

5. The high temperature resistant and residue-free photovoltaic backsheet positioning tape according to claim 1, characterized in that: The decorative layer (101) is a color coating layer, a color film layer, or a pattern printing layer.

6. The high temperature resistant and residue-free photovoltaic backsheet positioning tape according to claim 1, characterized in that: The upper heat insulation layer (102) and the lower heat insulation layer (302) are both PET film layers.

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