High-light-transmittance pressure-sensitive adhesive tape

Abstract

The utility model relates to the technical field of pressure-sensitive adhesive tapes, and discloses a high-light-transmittance pressure-sensitive adhesive tape which comprises two bottom frames, two convex columns are fixedly arranged on the upper end surfaces of the two bottom frames, a fixed shaft is fixedly arranged on the opposite surfaces of the two convex columns, a winding roller is rotationally arranged on the outer ring of the fixed shaft, and the winding roller is arranged on the upper end surface of the bottom frame. Two side plates are fixedly arranged on the outer walls of the two sides of the two convex columns, a fixing mechanism is fixedly arranged on the front end face of each side plate, an adhesive tape body is installed on the outer ring of the winding roller, and the adhesive tape body is fixedly arranged on the outer ring of the winding roller. The fixing mechanism comprises two vertical plates, a bottom plate, a fixing plate, a pressing plate, a bolt, a spring, an inner groove and a pressing block, the fixing mechanism and the adhesive tape body are arranged, high light transmittance is achieved, polyethylene glycol terephthalate is used as a base material, ultraviolet absorption can be resisted, yellowing is not prone to occurring, and cutting is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure-sensitive adhesive tapes, in particular to a high-transmittance pressure-sensitive adhesive tape. Background Art

[0002] With the development of society and the improvement of people's living standards, the public is paying more and more attention to the quality of their living and working environments. Pressure-sensitive tape products can be seen everywhere in our lives. Pressure-sensitive tape consists of a strip-shaped substrate and a pressure-sensitive adhesive coated on the strip-shaped substrate. Generally, the middle is pressure-sensitive adhesive and both sides are made of PET as the substrate. Due to the characteristics of easy use, cleanliness and good processing size, pressure-sensitive tape is widely used in the attachment of printing plates and in the fields of electronic industry processing. High-transmittance pressure-sensitive tape makes the contents under the tape clearly visible, which is convenient for quick identification.

[0003] In the process of implementing this application, the inventors discovered that the prior art has the following problems:

[0004] In the prior art, PET substrates usually contain phenol-containing antioxidants. Phenolic compounds will migrate to the pressure-sensitive adhesive. Under the action of nitrogen oxides and long-term exposure to ultraviolet rays from sunlight, the tape material will degrade and turn yellow, which can easily lead to a decrease in its adhesion performance, affecting the use effect and even causing the material to loosen or separate.

[0005] Therefore, those skilled in the art provide a high-transmittance pressure-sensitive adhesive tape to solve the problems raised in the above background technology. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings of the prior art and to provide a high-transmittance pressure-sensitive adhesive tape, which has high light transmittance, is not prone to yellowing and is easy to cut.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a high-transmittance pressure-sensitive adhesive tape, comprising two base frames, wherein the upper end surfaces of the two base frames are fixedly provided with a protrusion, the number of the protrusions being two, a fixed shaft is fixedly provided on the opposite surfaces of the two protrusions, a roller is rotatably provided on the outer ring of the fixed shaft, side plates are fixedly provided on the outer walls of both sides of the two protrusions, the number of the side plates being two, a fixing mechanism is fixedly provided on the front end surface of the side plates, and the tape body is mounted on the outer ring of the roller;

[0008] The fixing mechanism includes two vertical plates, a bottom plate, a fixing plate, a pressing plate, a bolt, a spring, an inner groove and a pressing block, and the tape body includes an easy-tear edge, a film layer, an upper adhesive layer, a mesh layer, a lower adhesive layer, a base material layer and a pressure-sensitive adhesive layer.

[0009] Furthermore, the bottom plate is fixedly arranged on the lower ends of the opposing surfaces of the two vertical plates, and inner grooves are provided at the centers of the opposing surfaces of the two vertical plates. There are two inner grooves, and the fixing plate is fixedly arranged on the inner walls of the two inner grooves and close to the upper ends.

[0010] Furthermore, the bolt thread passes through the center of the fixed plate and one end is fixedly connected to the pressing block. The pressing plate is movably arranged at the lower end of the fixed plate. There are two springs. The bottom ends of the two springs are fixedly installed on the lower end surfaces of two relative inner grooves and the upper end surfaces are fixedly connected to the pressing plate.

[0011] Furthermore, the easy-tear openings are fixedly arranged at equal intervals on the upper end surface of the film layer, the film layer is fixedly arranged on the upper end surface of the upper adhesive layer, and the film layer is made of polypropylene material and has a thickness of 12 μm-20 μm.

[0012] Furthermore, the upper adhesive layer is fixedly arranged on the upper end surface of the mesh layer, and the upper adhesive layer connects the film layer and the mesh layer.

[0013] Furthermore, the mesh layer is fixedly arranged on the upper end surface of the lower adhesive layer, the lower adhesive layer is fixedly arranged on the upper end surface of the pressure-sensitive adhesive layer, the lower adhesive layer connects the mesh layer and the pressure-sensitive adhesive layer, and the substrate layer is based on polyethylene terephthalate.

[0014] Furthermore, the thickness of the upper adhesive layer and the lower adhesive layer is 20 μm, and the thickness of the pressure-sensitive adhesive layer is 40 μm-50 μm.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model proposes a high-transmittance pressure-sensitive adhesive tape, which is provided with a film layer, and the film layer is made of polypropylene and has good light transmittance and tear resistance. A mesh layer is provided, and the mesh layer is woven with high-elastic yarn and adhered together by an upper adhesive layer and a lower adhesive layer, so that the formed pressure-sensitive adhesive tape has high elasticity and good tear resistance. The base material layer is made of polyethylene terephthalate. Polyethylene terephthalate itself has a weak ability to absorb ultraviolet rays and is easily degraded by ultraviolet rays. Its structure does not contain phenol components, and it is not easy to cause the pressure-sensitive adhesive to turn yellow.

[0017] 2. The utility model proposes a high-transmittance pressure-sensitive tape, which is provided with a pressing plate and a lower end serration, and the lower end surfaces on both sides of the pressing plate are connected to the spring. By screwing the bolt, the pressing block presses the pressing plate downward, so that the serration at the lower end of the pressing plate squeezes the tape body and cuts the corresponding easy-tear edge, which is more labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a structural diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the fixing mechanism of the present utility model;

[0020] Figure 3 This is a schematic diagram of the easy-tear portion of the utility model;

[0021] Figure 4 This is a schematic diagram of the tape body of the present utility model;

[0022] Figure 5 It is a schematic diagram of the vertical plate of the present utility model.

[0023] Legend:

[0024] 1. Base frame; 2. Boss; 3. Fixed shaft; 4. Roller; 5. Fixing mechanism; 6. Tape body; 7. Side panel; 501. Vertical panel; 502. Bottom panel; 503. Fixed panel; 504. Pressing plate; 505. Bolt; 506. Spring; 507. Inner groove; 508. Pressing block; 601. Easy-tear notch; 602. Film layer; 603. Upper adhesive layer; 604. Mesh layer; 605. Lower adhesive layer; 606. Base material layer; 607. Pressure-sensitive adhesive layer. DETAILED DESCRIPTION

[0025] 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.

[0026] Reference Figure 1-Figure 5 , an embodiment provided by the utility model:

[0027] A high-transmittance pressure-sensitive adhesive tape comprises two base frames 1. Two protruding columns 2 are fixedly provided on the upper end surfaces of the two base frames 1. A fixed shaft 3 is fixedly provided on the opposite surface of the two protruding columns 2. A winding roller 4 is rotatably provided on the outer ring of the fixed shaft 3. Two side panels 7 are fixedly provided on the outer walls of both sides of the two protruding columns 2. A fixing mechanism 5 is fixedly provided on the front end surface of the side panels 7. A tape body 6 is mounted on the outer ring of the winding roller 4.

[0028] The fixing mechanism 5 includes two vertical plates 501, a bottom plate 502, a fixing plate 503, a pressing plate 504, a bolt 505, a spring 506, an inner groove 507, and a pressing block 508. The tape body 6 includes an easy-tear notch 601, a film layer 602, an upper adhesive layer 603, a mesh layer 604, a lower adhesive layer 605, a base material layer 606, and a pressure-sensitive adhesive layer 607.

[0029] Specifically, by setting up two base frames 1, and the base frames 1 are fixedly connected to the two bosses 2, and the two bosses 2 are fixedly connected to the fixed shaft 3, it can be ensured that the fixed shaft 3 is in a fixed state when the roller 4 rotates and provides support through the base frames 1 and the bosses 2. By setting up two side panels 7 and welding the two side panels 7 to the fixing mechanism 5, the torn head of the tape body 6 can be conveniently placed on the groove of the bottom plate 502, which is convenient for subsequent cutting. The tape body 6 is the tape body and is wrapped around a circle of the roller 4, and the tape body 6 rotates synchronously with the roller 4.

[0030] Reference Figure 2 、 Figure 5 The bottom plate 502 is fixedly arranged on the lower end of the opposite surfaces of the two vertical plates 501. The centers of the opposite surfaces of the two vertical plates 501 are each provided with an inner groove 507. There are two inner grooves 507. The fixed plate 503 is fixedly arranged on the inner walls of the two inner grooves 507 and close to the upper end.

[0031] The bolt 505 is threaded through the center of the fixed plate 503 and one end is fixedly connected to the pressing block 508. The pressing plate 504 is movably arranged at the lower end of the fixed plate 503. There are two springs 506. The bottom ends of the two springs 506 are fixedly installed on the lower end surfaces of two opposing inner grooves 507 and the upper end surfaces are fixedly connected to the pressing plate 504.

[0032] Specifically, by setting two vertical plates 501, and inner grooves 507 are set in the two vertical plates 501, the bottom ends of the two springs 506 are fixedly connected to the bottom ends of the inner grooves 507, and the upper ends of the springs 506 are fixedly connected to the pressing plate 504, the two ends of the pressing plate 504 are separated from the inner walls of the inner grooves 507, the two ends of the fixing plate 503 are fixedly connected to the inner walls of the inner grooves 507, and the pressing block 508 is fixedly connected to the bottom end of the bolt 505. By rotating the bolt 505, the pressing block 508 can be squeezed to the pressing plate 504, and the elastic force of the spring 506 can move the pressing plate 504 and the saw teeth downward, so that the saw teeth correspond to the easy-to-tear edge 601 of the tape and then press and cut. By setting the bottom plate 502, and the groove opened at the upper end of the bottom plate 502 can correspond to the saw teeth at the lower end of the pressing plate 504, the tape body 6 can be placed in the groove of the bottom plate 502.

[0033] Reference Figure 3 、 Figure 4 The easy-tear openings 601 are fixedly arranged at equal intervals on the upper end surface of the film layer 602, and the film layer 602 is fixedly arranged on the upper end surface of the upper adhesive layer 603. The film layer 602 is made of polypropylene and has a thickness of 12 μm-20 μm;

[0034] The upper adhesive layer 603 is fixedly disposed on the upper end surface of the mesh layer 604, and the upper adhesive layer 603 connects the film layer 602 and the mesh layer 604;

[0035] The mesh layer 604 is fixedly disposed on the upper end surface of the lower adhesive layer 605, which is fixedly disposed on the upper end surface of the pressure-sensitive adhesive layer 607. The lower adhesive layer 605 connects the mesh layer 604 and the pressure-sensitive adhesive layer 607. The substrate layer 606 is made of polyethylene terephthalate (PETS).

[0036] The thickness of the upper adhesive layer 603 and the lower adhesive layer 605 is 20 μm, and the thickness of the pressure-sensitive adhesive layer 607 is 40 μm-50 μm;

[0037] Specifically, the provision of the easy-tear notch 601 saves effort during cutting, and the torn edges are relatively neat. The provision of the upper adhesive layer 603 allows the film layer 602 to be bonded to the mesh layer 604, preventing delamination during tearing. The provision of the lower adhesive layer 605 allows the mesh layer 604 to be bonded to the pressure-sensitive adhesive layer 607, preventing delamination and providing a relatively strong bond. The provision of the mesh layer 604 ensures that the formed pressure-sensitive adhesive tape has high elasticity and good tear resistance. The substrate layer 606 is provided on both sides of the bottom end of the pressure-sensitive adhesive 607 layer, and the substrate layer is based on polyethylene terephthalate (PETS). Polyethylene terephthalate (PET) or PETS itself has a weak ability to absorb ultraviolet light (UV) and is easily degraded by ultraviolet light. Its structure does not contain phenol, which is not likely to cause the pressure-sensitive adhesive to yellow.

[0038] Working principle: When using the utility model, the device is first placed on a stable place, and then the beginning of the tape body 6 is pulled to the groove at the upper end of the bottom plate 502 and the easy-tear notch 601 is aligned with the serrations at the bottom end of the pressing plate 504. Then, the bolt 505 is screwed to move the pressing block 508 fixed with the bolt 505 downward to squeeze the pressing plate 504. Then, the pressing plate 504 moves downward due to the squeezing force of the pressing block 508 and presses the springs 506 at the bottom ends of both sides of the pressing plate 504, so that the pressing plate 504 and the bottom serrations move downward.

[0039] Secondly, when the top end of the bolt 505 is screwed until it is tightly against the upper end surface of the fixing plate 503, the serrations at the bottom end of the pressing plate 504 and the tape in the groove at the upper end of the bottom plate 502 are squeezed to cut it off. After use, the bolt 505 can be screwed in the opposite direction, and the pressing plate 504 can be driven up by the rebound force of the springs 506 on both sides.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-transmittance pressure-sensitive adhesive tape comprising two base frames (1), characterized in that: The upper end surfaces of the two base frames (1) are fixedly provided with a boss (2), the number of the bosses (2) is two, the opposite surfaces of the two bosses (2) are fixedly provided with a fixed shaft (3), the outer ring of the fixed shaft (3) is rotatably provided with a roller (4), the outer walls of both sides of the two bosses (2) are fixedly provided with a side plate (7), the number of the side plates (7) is two, the front end surfaces of the two side plates (7) are fixedly provided with a fixing mechanism (5), and the outer ring of the roller (4) is installed with a tape body (6); The fixing mechanism (5) comprises two vertical plates (501), a bottom plate (502), a fixing plate (503), a pressing plate (504), a bolt (505), a spring (506), an inner groove (507) and a pressing block (508); the tape body (6) comprises an easy-tear opening (601), a film layer (602), an upper adhesive layer (603), a mesh layer (604), a lower adhesive layer (605), a base material layer (606) and a pressure-sensitive adhesive layer (607).

2. The high-transmittance pressure-sensitive adhesive tape according to claim 1, characterized in that: The bottom plate (502) is fixedly arranged on the lower ends of the opposing surfaces of the two vertical plates (501), and an inner groove (507) is provided at the center of the opposing surfaces of the two vertical plates (501). There are two inner grooves (507), and the fixed plate (503) is fixedly arranged on the inner walls of the two inner grooves (507) and close to the upper ends.

3. The high-transmittance pressure-sensitive adhesive tape according to claim 1, characterized in that: The bolt (505) is threadedly passed through the center of the fixed plate (503) and one end is fixedly connected to the pressing block (508). The pressing plate (504) is movably arranged at the lower end of the fixed plate (503). There are two springs (506). The bottom ends of the two springs (506) are fixedly installed on the lower end surfaces of two relative inner grooves (507) and the upper end surfaces are fixedly connected to the pressing plate (504).

4. The high-transmittance pressure-sensitive adhesive tape according to claim 1, characterized in that: The easy-tear openings (601) are fixedly arranged at equal intervals on the upper end surface of the film layer (602), and the film layer (602) is fixedly arranged on the upper end surface of the upper adhesive layer (603). The film layer (602) is made of polypropylene material and has a thickness of 12 μm-20 μm.

5. The high-transmittance pressure-sensitive adhesive tape according to claim 1, characterized in that: The upper adhesive layer (603) is fixedly arranged on the upper end surface of the mesh layer (604), and the upper adhesive layer (603) connects the film layer (602) and the mesh layer (604).

6. The high-transmittance pressure-sensitive adhesive tape according to claim 1, characterized in that: The mesh layer (604) is fixedly arranged on the upper end surface of the lower adhesive layer (605), and the lower adhesive layer (605) is fixedly arranged on the upper end surface of the pressure-sensitive adhesive layer (607). The lower adhesive layer (605) connects the mesh layer (604) and the pressure-sensitive adhesive layer (607), and the base material layer (606) uses polyethylene terephthalate as a base material.

7. The high-transmittance pressure-sensitive adhesive tape according to claim 1, characterized in that: The thickness of the upper adhesive layer (603) and the lower adhesive layer (605) is 20 μm, and the thickness of the pressure-sensitive adhesive layer (607) is 40 μm-50 μm.

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