Puncture-tearable solvent-resistant sealing plate film

Abstract

The utility model aims to provide a puncturable tearable solvent-resistant plate sealing membrane, which comprises a puncture component and a sealing component, the puncture component comprises a base layer and a bonding layer, the bonding layer is arranged on one side surface of the base layer and is used for being bonded with a PCR plate, the sealing component comprises a sealing layer and a bonding layer, and the sealing layer is arranged on one side surface of the base layer and is used for being bonded with the PCR plate. One side face of the sealing layer comprises a pinching part, a sealing part and a welding part which are sequentially connected, the pasting layer is arranged on the sealing part, and the welding part is welded to the side face, away from the pasting layer, of the base layer so that the pasting layer can be pasted to the side face, away from the pasting layer, of the base layer in a tearable mode. Therefore, after the sealing layer is torn off from the base layer, the base layer can be punctured, when the sealing layer is bonded with the base layer, the punctured part can be shielded, compared with the prior art, the sealing plate film does not need to be replaced again, the operation is simple, and the operation is more reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental consumables, in particular to a punctureable and tearable solvent-resistant plate sealing film. Background Art

[0002] PCR plates are used as carriers for primers, Taq DNA polymerase, dNTPs, template nucleic acids, Mg, buffers, etc. in polymerase chain reaction (PCR). PCR plates are usually made of polypropylene (PP), which can adapt well to repeated high and low temperature settings during PCR reactions and can be sterilized at high temperatures and high pressures.

[0003] The sealing film is a film material used to seal the PCR plate. Specifically, the sealing film is adhered to the surface of the PCR plate, and then the reactants are injected into or extracted from the PCR plate by needle puncture, so that the reactants can be used for various experiments in the PCR plate.

[0004] However, the existing sealing film has the following shortcomings in actual use: after being punctured, the existing sealing film needs to be replaced in order to make the PCR plate airtight again, which easily leads to the problem of the reactants being exposed to the outside air. In view of this, the punctureable and tearable solvent-resistant sealing film of the present application is proposed. Utility Model Content

[0005] The utility model aims to overcome the shortcomings of the prior art and provide a puncture-resistant and tearable solvent-resistant plate sealing film that can be used continuously through puncture and can ensure that the PCR plate remains closed without the need to replace the plate sealing film.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A punctureable and tearable solvent-resistant plate sealing film, comprising:

[0008] A puncture assembly, the puncture assembly comprising a base layer and an adhesive layer, the adhesive layer is disposed on one side of the base layer, and the adhesive layer is used to adhere to a PCR plate; and

[0009] A sealed component, the sealed component includes a sealing layer and an adhesive layer, one side of the sealing layer includes a gripping portion, a sealing portion and a welding portion connected in sequence, the adhesive layer is arranged on the sealing portion, and the welding portion is welded to a side of the base layer away from the adhesive layer, so that the adhesive layer can be tornly bonded to a side of the base layer away from the adhesive layer.

[0010] Optionally, the base layer and the sealing layer are both aluminum films.

[0011] Optionally, the width of the sealing layer is smaller than the width of the base layer, and one side edge of the sealing layer is aligned with one side edge of the base layer.

[0012] Optionally, the adhesive layer is PP / PE / PET.

[0013] Optionally, the adhesive layer is polyurethane / acrylic.

[0014] Optionally, the adhesive layer is a coating structure.

[0015] Optionally, the adhesive layer is provided with a plurality of virtual grooves, and the distance between any two adjacent virtual grooves is equal.

[0016] Optionally, the width of the holding portion and the width of the welding portion are both 4 mm to 6 mm.

[0017] Optionally, the punctureable and tearable solvent-resistant plate sealing film has a thickness of 40 μm to 120 μm.

[0018] Optionally, the punctureable and tearable solvent-resistant sealing film further comprises a release sheet, and the release sheet is attached to the side of the adhesive layer away from the base layer.

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

[0020] The punctureable and tearable solvent-resistant plate sealing film of the utility model includes a puncture component and a sealing component. The puncture component includes a base layer and an adhesive layer. The adhesive layer is arranged on one side of the base layer. The adhesive layer is used to bond with the PCR plate. The sealing component includes a sealing layer and an adhesive layer. One side of the sealing layer includes a pinching part, a sealing part and a welding part connected in sequence. The adhesive layer is arranged on the sealing part. The welding part is welded to a side of the base layer away from the adhesive layer, so that the adhesive layer can be bonded to a side of the base layer away from the adhesive layer in a tearable manner. In this way, after the sealing layer is torn off from the base layer, the base layer can be punctured. When the sealing layer is bonded to the base layer again, the puncture site can be shielded. Compared with the prior art, there is no need to replace the plate sealing film again. The operation is simple and more reliable. 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 1This is a schematic structural diagram of a punctureable and tearable solvent-resistant plate sealing film according to one embodiment of the utility model;

[0023] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the punctureable and tearable solvent-resistant sealing film shown;

[0024] Figure 3 for Figure 1 A top view of the punctureable and tearable solvent-resistant sealing film is shown.

[0025] Description of reference numerals:

[0026] 10. Punctureable and tearable solvent-resistant sealing film; 110. Base layer; 120. Adhesive layer; 210. Sealing layer; 220. Adhesive layer; 211. Holding portion; 212. Sealing portion; 213. Welding portion; 221. Virtual groove; 300. Release sheet. DETAILED DESCRIPTION

[0027] 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.

[0028] like Figures 1 to 3 As shown, a punctureable and tearable solvent-resistant sealing film 10 includes a puncture component and a sealing component. The puncture component includes a base layer 110 and an adhesive layer 120. The adhesive layer 120 is arranged on one side of the base layer 110, and the adhesive layer 120 is used to bond with a PCR plate. The sealing component includes a sealing layer 210 and an adhesive layer 220. One side of the sealing layer 210 includes a pinching portion 211, a sealing portion 212 and a welding portion 213 connected in sequence. The adhesive layer 220 is arranged on the sealing portion 212, and the welding portion 213 is welded to a side of the base layer 110 away from the adhesive layer 120, so that the adhesive layer 120 can be tearably bonded to a side of the base layer 110 away from the adhesive layer 120.

[0029] It should be noted that the base layer 110 is a bearing structure of the adhesive layer 120. In one embodiment, the base layer 110 is an aluminum film structure. The adhesive layer 120 is disposed on one side of the base layer 110. In one embodiment, the adhesive layer 120 is a coating structure. Specifically, the adhesive layer 120 is solidified on the base layer 110 by coating. It should be noted that the adhesive layer 120 contains viscosity. The adhesive layer 120 is bonded to the PCR board so that the adhesive layer 120 and the base layer 110 seal the PCR board. Further, the sealing layer 210 is also an aluminum film structure. One side of the sealing layer 210 is divided into a pinching portion 211, a sealing portion 212 and a welding portion 213. The pinching portion 211 and the welding portion 213 are respectively located on both sides of the sealing portion 212, and the adhesive layer 220 is disposed on the sealing portion 212, and the adhesive layer 220 also has viscosity. The welding portion 213 is welded and fixed on the side surface of the base layer 110 away from the adhesive layer 120, so that the adhesive layer 220 is bonded and fixed to the base layer 110. In this way, when the PCR plate needs to be punctured to inject or extract materials, an external force is applied to the pinching portion 211 so that the adhesive layer 220 is torn off from the base layer 110, and then the base layer 110 is punctured. After the puncture is completed, the adhesive layer 220 is re-adhered to the surface of the base layer 110. The welding portion 213 of the adhesive layer 220 and the base layer 110 are welded and fixed structures, so the adhesive layer 220 will not be completely torn off from the base layer 110, so that after the adhesive layer 220 is re-pasted on the base layer 110, the adhesive layer 220 can cover the puncture site of the base layer 110. In this way, even if the puncture operation is performed, it can ensure that the PCR plate remains in a closed state. Compared with the prior art, there is no need to replace the sealing film, the operation is simple, and it is more reliable.

[0030] In one embodiment, the width of the sealing layer 210 is smaller than the width of the base layer 110 , and one side edge of the sealing layer 210 is aligned with one side edge of the base layer 110 .

[0031] It should be noted that the width of the sealing layer 210 is smaller than the width of the base layer 110 , so that it is convenient for the user to pinch the gripping portion 211 to apply force and then tear the sealing layer 210 off the base layer 110 .

[0032] In one embodiment, the adhesive layer 220 is PP / PE / PET. Among them, PP is polypropylene, PE is polyethylene, and PET is polyethylene terephthalate. During the processing of the adhesive layer 220, the adhesive layer 220 formed can be ensured to be sticky by adding an adhesive. Further, in one embodiment, the adhesive layer 220 and the sealing layer 210 are formed into an integral structure by hot pressing and laminating. Further, in one embodiment, the adhesive layer 120 is polyurethane / acrylic. Similarly, during the processing of the adhesive layer 120, the adhesive layer 120 can be made sticky by adding an adhesive. Among them, the adhesive layer 120 is a coating structure, so that the adhesive layer 120 has a weaker tear strength than the adhesive layer 220. The sealing layer 210 has a certain tear strength. In this way, the sealing layer 210 can withstand a stronger pulling force, so that it can be repeatedly torn off / bonded from the base layer 110.

[0033] like Figure 3 As shown, in one embodiment, the adhesive layer 220 is provided with a plurality of virtual break grooves 221 , and the distance between any two adjacent virtual break grooves 221 is equal.

[0034] It should be noted that in order to make the puncture-resistant and tearable solvent-resistant sealing film 10 of the present application applicable to PCR plates of different areas, a plurality of equally spaced virtual break grooves 221 are provided on the adhesive layer 220. It should be noted that the base layer 110 and the sealing layer 210 are both long strip-shaped roll structures. The different areas of the PCR plates mean that the lengths of the base layer 110 and the sealing layer 210 used are different. Therefore, in order to facilitate tearing, a plurality of virtual break grooves 221 are provided on the adhesive layer 220. It is only necessary to apply a certain pulling force to the virtual break groove 221 to tear it along the virtual break groove 221. Furthermore, the sealing layer 210 is divided into a plurality of zones by the virtual break groove 221, and the experimental space in the PCR plate can also be divided into different closed areas. Even if some areas are contaminated by experimental materials due to the removal of part of the sealing layer 210, other areas can be contaminated due to the removal of the sealing layer 210. In this way, the puncture-resistant and tearable solvent-resistant sealing film 10 of the present application is more convenient to use.

[0035] In one embodiment, the width of the gripping portion 211 and the width of the welding portion 213 are both 4 mm to 6 mm. In this way, the sealing layer 210 is reliably fixed to the base layer 110 through the welding portion 213. The user can pinch the gripping portion 211 to tear the adhesive layer 220 off the base layer 110.

[0036] In one embodiment, the thickness of the punctureable and tearable solvent-resistant plate sealing film 10 is 40 μm to 120 μm. For example, the thickness of the punctureable and tearable solvent-resistant plate sealing film 10 can also be 50 μm, or 60 μm, or 70 μm, or 80 μm, or 90 μm, or 100 μm, or 110 μm.

[0037] like Figure 2 As shown, in one embodiment, the punctureable and tearable solvent-resistant sealing film 10 further includes a release sheet 300, which is attached to the side of the adhesive layer 120 away from the base layer 110. In this way, the release sheet 300 is used to protect the adhesive layer 120. When in use, the release sheet 300 is torn off from the adhesive layer 120, and then the adhesive layer 120 is attached and fixed to the PCR plate.

[0038] 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 punctureable and tearable solvent-resistant plate sealing film, characterized in that: include: A puncture assembly, the puncture assembly comprising a base layer and an adhesive layer, the adhesive layer is disposed on one side of the base layer, and the adhesive layer is used to adhere to a PCR plate; and A sealed component, the sealed component includes a sealing layer and an adhesive layer, one side of the sealing layer includes a gripping portion, a sealing portion and a welding portion connected in sequence, the adhesive layer is arranged on the sealing portion, and the welding portion is welded to a side of the base layer away from the adhesive layer, so that the adhesive layer can be tornly bonded to a side of the base layer away from the adhesive layer.

2. The punctureable and tearable solvent-resistant plate sealing film according to claim 1, characterized in that: The base layer and the sealing layer are both aluminum films.

3. The punctureable and tearable solvent-resistant plate sealing film according to claim 2, characterized in that: The width of the sealing layer is smaller than the width of the base layer, and one side edge of the sealing layer is aligned with one side edge of the base layer.

4. The punctureable and tearable solvent-resistant plate sealing film according to claim 1, characterized in that: The adhesive layer is PP / PE / PET.

5. The punctureable and tearable solvent-resistant plate sealing film according to claim 1, characterized in that: The adhesive layer is polyurethane / acrylic acid.

6. The punctureable and tearable solvent-resistant plate sealing film according to claim 5, characterized in that: The adhesive layer is a coating structure.

7. The punctureable and tearable solvent-resistant plate sealing film according to claim 1, characterized in that: The adhesive layer is provided with a plurality of virtual grooves, and the distance between any two adjacent virtual grooves is equal.

8. The punctureable and tearable solvent-resistant plate sealing film according to claim 1, characterized in that: The width of the holding portion and the width of the welding portion are both 4 mm to 6 mm.

9. The punctureable and tearable solvent-resistant plate sealing film according to claim 1, characterized in that: The thickness of the punctureable and tearable solvent-resistant plate sealing film is 40 μm to 120 μm.

10. The punctureable and tearable solvent-resistant plate sealing film according to claim 1, characterized in that: The punctureable and tearable solvent-resistant plate sealing film further comprises a release sheet, and the release sheet is attached to the side of the adhesive layer away from the base layer.

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