Pressure-sensitive high-temperature-resistant sealing plate film

Abstract

The utility model aims to provide a pressure-sensitive type high-temperature-resistant sealing plate film, which comprises a base film, an adhesive layer and an isolating layer, the adhesive layer comprises an adhesive film and a plurality of adhesive bodies, the adhesive film is pasted on one side surface of the base film, the adhesive bodies are arranged on one side surface of the adhesive film far away from the base film at intervals, the isolating layer is arranged on one side surface of the adhesive film far away from the base film, and the isolating layer is arranged on the other side surface of the adhesive film far away from the base film. One side surface, far away from the adhesive layer, of the isolation layer is of a plane structure. Therefore, when no external force exists, the isolating layer is of a non-viscous structure, and when the isolating layer is pressed, the adhesive layer is broken out from the surface of the isolating layer, so that the isolating layer has viscosity, and therefore, the isolating layer does not adhere to gloves during plate sealing, but the PCR plate can be reliably sealed after being pressed.

Description

Technical Field

[0001] The utility model relates to the technical field of PCR plate membrane materials, in particular to a pressure-sensitive high-temperature resistant plate sealing membrane. Background Art

[0002] PCR plate, also known as PCR reaction plate or PCR microplate, is a tool used in the laboratory for polymerase chain reaction (PCR). The main function of the PCR plate is to provide a stable reaction environment for the PCR reaction so that all reaction substances can be mixed and accurately distributed into each well. PCR plates are usually made of polypropylene (PP) material, which can well adapt to the repeated high and low temperature settings during the PCR reaction process and can achieve high temperature and high pressure sterilization operations.

[0003] PCR plate sealing film is a kind of film material specially used for sealing PCR plates. Its main function is to ensure that the liquid in the plate will not evaporate during the PCR process, thereby ensuring the accuracy and reliability of the experiment. The sealing film is usually made of transparent polypropylene film, and sometimes other materials such as aluminum foil are used to meet different experimental needs.

[0004] Currently, when sealing a PCR plate, the release film of a single sealing film is first torn off, and then the adhesive side of the sealing film is covered on the PCR plate to complete the sealing operation.

[0005] However, the existing sealing film has the following problems in actual operation: after the personnel tear off the release film, the sealing film will stick to the personnel's gloves, which makes the operation inconvenient during the sealing process, and it is easy to contaminate the adhesive layer of the sealing film, resulting in reduced viscosity and even failure to seal the PCR plate. In view of this, the pressure-sensitive high-temperature resistant sealing film of the present application is proposed. Utility Model Content

[0006] The utility model aims to overcome the shortcomings of the prior art and provide a pressure-sensitive high-temperature resistant plate sealing film which can avoid gloves from sticking when sealing the plate and can reliably seal the PCR plate.

[0007] The purpose of this utility model is achieved through the following technical solutions:

[0008] A pressure-sensitive high-temperature resistant plate sealing film, comprising:

[0009] Basement membrane;

[0010] An adhesive layer, the adhesive layer comprising an adhesive film and a plurality of adhesive bodies, the adhesive film being attached to one side of the base film, and the adhesive bodies being arranged at intervals on a side of the adhesive film away from the base film; and

[0011] The isolation layer is arranged on a side of the adhesive film away from the base film, so that the isolation layer covers each of the adhesive bodies, and a side of the isolation layer away from the adhesive layer is a planar structure.

[0012] Optionally, the total thickness of the base film, the adhesive layer and the isolation layer is 0.1 mm to 0.12 mm.

[0013] Optionally, the distance between any two adjacent viscose bodies is smaller than the maximum transverse diameter of the viscose bodies.

[0014] Optionally, a minimum distance between a side of the isolation layer away from the adhesive film and the adhesive body is 5 μm to 10 μm.

[0015] Optionally, the adhesive body and the adhesive film are an integrally formed structure.

[0016] Optionally, the pressure-sensitive high-temperature-resistant sealing film further includes a release film, and the release film is attached to a side of the isolation layer away from the adhesive layer.

[0017] Optionally, the base film includes a bonding area and a blank area, and the adhesive film is attached to the bonding area.

[0018] Optionally, a plurality of the pressure-sensitive high-temperature resistant sealing films are provided, each of the pressure-sensitive high-temperature resistant sealing films is laterally connected in sequence, and a dotted groove is provided between any two adjacent pressure-sensitive high-temperature resistant sealing films.

[0019] Compared with the prior art, the utility model has at least the following advantages:

[0020] The pressure-sensitive high-temperature resistant plate sealing film of the utility model comprises a base film, an adhesive layer and an isolation layer, wherein the adhesive layer comprises an adhesive film and a plurality of adhesive bodies, the adhesive film is attached to one side of the base film, and each adhesive body is arranged at intervals on the side of the adhesive film away from the base film, and the isolation layer is arranged on the side of the adhesive film away from the base film, so that the isolation layer covers each adhesive body, and the side of the isolation layer away from the adhesive layer is a planar structure. In this way, when there is no external force, the isolation layer is a non-sticky structure, and when subjected to a pressing force, the adhesive layer breaks out from the surface of the isolation layer, thereby having stickiness, so that the gloves will not stick when sealing the plate, but the PCR plate can be reliably sealed after pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic structural diagram of a pressure-sensitive high-temperature resistant plate sealing film according to one embodiment of the utility model;

[0023] Figure 2 for Figure 1 A partial cross-sectional schematic diagram of a pressure-sensitive high temperature resistant sealing film shown;

[0024] Figure 3 This is a schematic structural diagram of a viscose body according to one embodiment of the utility model;

[0025] Figure 4 for Figure 1 Schematic diagram of the structure of the bonding state of the pressure-sensitive high-temperature resistant sealing film shown.

[0026] Figure 5 for Figure 1 The structural schematic diagram of the splicing state of the pressure-sensitive high-temperature resistant sealing film is shown.

[0027] Description of reference numerals:

[0028] 10. Pressure-sensitive high-temperature resistant sealing film; 100. Base film; 200. Adhesive layer; 300. Isolation layer; 210. Adhesive film; 220. Adhesive body; 400. Release film; 120. Empty material area; 20. Dotted line groove; 30. PCR plate. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings show preferred embodiments of the present invention.

[0030] like Figures 1 to 4 As shown, a pressure-sensitive high-temperature resistant sealing film 10 includes a base film 100, an adhesive layer 200 and an isolation layer 300. The adhesive layer 200 includes an adhesive film 210 and a plurality of adhesive bodies 220. The adhesive film 210 is attached to one side of the base film 100. The adhesive bodies 220 are arranged at intervals on the side of the adhesive film 210 away from the base film 100. The isolation layer 300 is arranged on the side of the adhesive film 210 away from the base film 100, so that the isolation layer 300 covers the adhesive bodies 220, and the side of the isolation layer 300 away from the adhesive layer 200 is a planar structure.

[0031] It should be noted that the adhesive layer 200 is coated on one of the surfaces of the base film 100, and then the isolation layer 300 is coated on the side of the adhesive layer 200 away from the base film 100, so that a three-layer structure of a pressure-sensitive high-temperature resistant plate sealing film 10 is formed. Among them, a plurality of adhesive bodies 220 are formed on the side of the adhesive layer 200 close to the isolation layer 300, and the distance between the adhesive body 220 and the isolation layer 300 tends to gradually decrease. In this way, when the pressure-sensitive high-temperature resistant plate sealing film 10 is applied to the PCR plate, since the surface of the isolation layer 300 is not sticky, it is effectively avoided that the gloves stick during operation. Then one side of the isolation layer 300 is attached to the PCR plate 30. When the pressure-sensitive high-temperature resistant sealing film 10 is aligned with the PCR plate 30, pressing pressure is applied to the side of the base film 100 away from the isolation layer 300. Since the adhesive layer 200 and the isolation layer 300 are deformed by the force, the adhesive layer 200 will first break out from the position of each adhesive body 220 close to the isolation layer 300 to adhere to the PCR plate, thereby achieving rapid sealing.

[0032] like Figure 2 As shown, in one embodiment, the total thickness H of the base film 100, the adhesive layer 200, and the isolation layer 300 is 0.1 mm to 0.12 mm. In this way, the pressure-sensitive high temperature resistant sealing film 10 has a light and thin structure, which is convenient for use.

[0033] like Figure 2 and Figure 3 As shown, in one embodiment, the distance between any two adjacent viscose bodies 220 is smaller than the maximum transverse diameter of the viscose body 220 .

[0034] In this way, it is ensured that each adhesive 220 can fully break out from the surface of the isolation layer 300 when subjected to force, so as to adhere to the skirt of the PCR plate.

[0035] like Figure 2 As shown, in one embodiment, the minimum distance D between the side of the isolation layer 300 away from the adhesive film 210 and the adhesive body 220 is 5 μm to 10 μm.

[0036] In this way, by controlling the minimum distance between the adhesive body 220 and the outer side of the isolation layer 300, when the pressure-sensitive high temperature resistant sealing film 10 is subjected to force, it can be effectively ensured that the adhesive layer 200 breaks out of the isolation layer 300 to adhere to the PCR plate.

[0037] In one embodiment, the adhesive body 220 and the adhesive film 210 are an integrally formed structure. Specifically, the adhesive body 220 and the adhesive film 210 are made of the same material.

[0038] like Figure 1 and Figure 2As shown, in one embodiment, the pressure-sensitive high temperature resistant sealing film 10 further includes a release film 400 , and the release film 400 is attached to a side surface of the isolation layer 300 away from the adhesive layer 200 .

[0039] It should be noted that the release film 400 is used to protect the isolation layer 300 to avoid contamination during transportation and storage.

[0040] like Figure 1 As shown, in one embodiment, the base film 100 includes an adhesive area and a blank area 120, and the adhesive film 210 is attached to the adhesive area. In this way, it is convenient for personnel to tear off the release film 400 attached to the isolation layer 300, and the operation is convenient.

[0041] like Figure 5 As shown, in one embodiment, a plurality of pressure-sensitive high temperature resistant plate sealing films 10 are provided, each of which is laterally connected in sequence, and a dotted groove 20 is provided between any two adjacent pressure-sensitive high temperature resistant plate sealing films 10. In this way, the dotted groove 20 is reserved, so that personnel can tear it off along the dotted groove 20 when using it, further improving the convenience of using the pressure-sensitive high temperature resistant plate sealing film 10.

[0042] In one embodiment, the base film 100 is made of at least one of polypropylene (PP) and polyethylene terephthalate (PET). In this way, it can be ensured that the pressure-sensitive high temperature resistant sealing film 10 can be repeatedly heated and cooled during the sealing experiment.

[0043] like Figure 4 As shown, in one embodiment, a plurality of viscosity-enhancing capsules 500 are provided in the adhesive layer 200, and intervals are provided between each viscosity-enhancing capsule 500. Specifically, the viscosity-enhancing capsule 500 contains high viscosity glue. When the pressure-sensitive high temperature resistant plate sealing film 10 is subjected to pressing force, the viscosity-enhancing capsule 500 is squeezed and broken, and the high viscosity glue can better stick to the PCR plate. In one embodiment, the particle size of the viscosity-enhancing capsule 500 is 8μm to 12μm. Further, in one embodiment, a plurality of viscosity-enhancing capsules 500 are also provided in the isolation layer 300, wherein the content of the viscosity-enhancing capsule 500 in the adhesive layer 200 is higher than the content of the viscosity-enhancing capsule 500 in the isolation layer 300. In this way, when the pressure-sensitive high temperature resistant plate sealing film 10 is subjected to pressing force, the surface of the isolation layer 300 also has a certain viscosity. In one embodiment, the viscosity of the high viscosity glue in the viscosity-enhancing capsule 500 is greater than the viscosity of the adhesive layer 200.

[0044] In one embodiment, a method for preparing a pressure-sensitive high temperature resistant sealing film 10 comprises the following steps:

[0045] Step S1: obtaining a base film 100;

[0046] Step S2: coating the molten adhesive film 210 on one side of the base film 100, and drying it in an oven at a temperature of 50° C. to 70° C. for 2 to 3 minutes;

[0047] Step S3: coating the molten adhesive 220 on the adhesive film 210 through a patterned plate, and drying it in an oven at a temperature of 70° C. to 90° C. for 3 to 5 minutes;

[0048] Step S4: coating the molten isolation layer 300 on the adhesive film 210 so that the isolation layer 300 covers the adhesive body 220, and drying in an oven at a temperature of 100° C. to 130° C. for 4 to 6 minutes;

[0049] Step S5: The release film is pasted on the isolation layer 300, and the dotted grooves 20 are cut out by a punching machine, and finally rolled up by a winding machine.

[0050] Furthermore, it should be noted that both the adhesive layer 200 and the isolation layer 300 can be made of materials in the prior art, wherein the adhesive layer 200 is a material having adhesiveness, and the isolation layer 300 is a material having no adhesiveness.

[0051] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A pressure-sensitive high temperature resistant plate sealing film, characterized in that: include: Basement membrane; An adhesive layer, the adhesive layer comprising an adhesive film and a plurality of adhesive bodies, the adhesive film being attached to one side of the base film, and the adhesive bodies being arranged at intervals on a side of the adhesive film away from the base film; and The isolation layer is arranged on a side of the adhesive film away from the base film, so that the isolation layer covers each of the adhesive bodies, and a side of the isolation layer away from the adhesive layer is a planar structure.

2. The pressure-sensitive high temperature resistant plate sealing film according to claim 1, characterized in that: The total thickness of the base film, the adhesive layer and the isolation layer is 0.1 mm to 0.12 mm.

3. The pressure-sensitive high temperature resistant plate sealing film according to claim 1, characterized in that: The distance between any two adjacent viscose bodies is smaller than the maximum transverse diameter of the viscose bodies.

4. The pressure-sensitive high temperature resistant sealing film according to claim 1, characterized in that: The minimum distance between the side of the isolation layer away from the adhesive film and the adhesive body is 5 μm to 10 μm.

5. The pressure-sensitive high temperature resistant plate sealing film according to claim 1, characterized in that: The viscose body and the viscose film are an integrally formed structure.

6. The pressure-sensitive high temperature resistant plate sealing film according to claim 1, characterized in that: The pressure-sensitive high-temperature resistant sealing film further comprises a release film, and the release film is attached to a side surface of the isolation layer away from the adhesive layer.

7. The pressure-sensitive high temperature resistant plate sealing film according to claim 1, characterized in that: The base film comprises a bonding area and a blank area, and the adhesive film is pasted in the bonding area.

8. The pressure-sensitive high temperature resistant plate sealing film according to claim 1, characterized in that: A plurality of the pressure-sensitive high-temperature resistant plate sealing films are provided, each of the pressure-sensitive high-temperature resistant plate sealing films is laterally connected in sequence, and a dotted line groove is provided between any two adjacent pressure-sensitive high-temperature resistant plate sealing films.

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