Lifting type sealing gasket

Abstract

The invention discloses a lifting type sealing gasket. The lifting type sealing gasket comprises a functional layer and a bonding layer, one of the functional layer and the bonding layer is provided with an electromagnetic induction heating sheet, and the bonding layer is provided with an adhesive sealing layer; the bottom surface of the functional layer and the top surface of the bonding layer are strongly bonded and compounded through an adhesive, and one of the bottom surface of the functional layer and the top surface of the bonding layer is directly coated with a release block formed by a release coating; the functional layer is provided with a hollow area, a primary tearing area and a re-pressing sealing area, the primary tearing area is provided with a lifting part and a lifting neck part which are connected, the hollow area is adjacent to the lifting part, the re-pressing sealing area surrounds the hollow area and the primary tearing area, and the edge of the primary tearing area is provided with a primary tearing line. The sealing structure has the advantages of being convenient to open and good in sealing effect when being pressed and sealed again.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sealing gaskets, in particular to a lifting type sealing gasket. BACKGROUND

[0002] The sealing gasket is a kind of gasket used for sealing the bottle mouth of a container, and the electromagnetic induction sealing gasket is a commonly used sealing gasket. The existing electromagnetic induction sealing gasket is heated by electromagnetic induction to make the aluminum foil heat, and then the adhesive sealing layer of the electromagnetic induction sealing gasket in contact with the bottle mouth of the container is melted by heat to realize the sealing of the bottle mouth of the container by bonding the adhesive sealing layer with the bottle mouth.

[0003] However, the existing electromagnetic induction sealing gasket is not easy to tear after sealing the bottle mouth, which causes inconvenience in use. Users often have difficulty in tearing the electromagnetic induction sealing gasket, and usually have to use relatively sharp blades, scissors and other tools to cut or pierce the electromagnetic induction sealing gasket at the bottle mouth of the container, which causes great inconvenience and poor experience for users, and even has certain safety hazards. After tearing the electromagnetic induction sealing gasket, the bottle mouth of the container cannot be effectively closed again, which shortens the shelf life of the contents in the container and makes them easy to deteriorate.

[0004] In view of the above problems, it is necessary to study a lifting type sealing gasket which is easy to open and has good sealing effect when used for resealing. SUMMARY

[0005] The purpose of the present application is to provide a lifting type sealing gasket which is easy to open and has good sealing effect when used for resealing.

[0006] In order to achieve the above purpose, the solution of the present application is as follows: A lifting type sealing gasket, comprising a functional layer and an adhesive layer, one of the functional layer and the adhesive layer is provided with an electromagnetic induction heating sheet, and the adhesive layer has an adhesive sealing layer; the bottom surface of the functional layer and the top surface of the adhesive layer are strongly bonded by an adhesive, and one of the bottom surface of the functional layer and the top surface of the adhesive layer is directly coated with a release block composed of a release coating; the functional layer is provided with a hollow area, a first tearing area and a resealing area, the first tearing area has a lifting part and a lifting neck part connected thereto, the hollow area is arranged adjacent to the lifting part, and the resealing area surrounds the hollow area and the first tearing area; the first tearing area is provided with a first tearing line.

[0007] The functional layer is further provided with a second tearing area, the first tearing area and the second tearing area are separated by a first tearing line, and the first tearing line is connected to at least one side of the two sides of the lifting part; the resealing area surrounds the hollow area, the first tearing area and the second tearing area; the resealing area and the second tearing area are separated by a second tearing line.

[0008] One end of the primary tearing line is connected with one side of the pulling part, and the other end of the primary tearing line intersects with the primary tearing line body, and the primary tearing line surrounds the pulling part.

[0009] The adhesive makes the peeling strength between the bottom surface of the functional layer and the top surface of the adhesive layer greater than 12 N / 15 mm.

[0010] The adhesive is dry composite glue or hot melt adhesive, and the material of the hot melt adhesive is one of PE, PP, EMAC, EEA, EAA, EMAA and EMMA.

[0011] The functional layer comprises a face film and a connecting film which are sequentially compounded from top to bottom; the face film is at least one of PI layer, PEN layer, PET layer, PE layer, PA layer and PP layer; and the connecting film is at least one of PET layer, EPE layer, EPP layer, PP layer, PA layer and PE layer.

[0012] The functional layer further comprises a composite film between the face film and the connecting film, and the composite film is at least one of EPP layer, EPE layer, PEN layer, PET layer, PP layer, PA layer and PE layer.

[0013] The adhesive layer comprises the electromagnetic induction heating sheet and the sealing film which are sequentially compounded from top to bottom; and the bottom surface of the connecting film is directly coated with the release block, and the coating area of the release block is greater than the area where the pulling part is located.

[0014] The adhesive layer comprises the electromagnetic induction heating sheet and the sealing film which are sequentially compounded from top to bottom; and the top surface of the electromagnetic induction heating sheet is directly coated with the release block, and the coating area of the release block is greater than the area where the pulling part and the hollow area are located.

[0015] The functional layer comprises a face film, the electromagnetic induction heating sheet and a connecting film which are sequentially compounded from top to bottom; the face film is at least one of PI layer, PEN layer, PET layer, PE layer, PA layer and PP layer; and the connecting film is at least one of PET layer, EPE layer, EPP layer, PP layer, PA layer and PE layer.

[0016] The bottom surface of the connecting film is directly coated with the release block, and the coating area of the release block is greater than the area where the pulling part is located.

[0017] The primary tearing line and / or the secondary tearing line adopts a cutting line with multiple breakpoints, the part of the functional layer corresponding to the breakpoints of the cutting line is not cut or partially cut in the vertical direction, and the part of the functional layer corresponding to the part of the cutting line other than the breakpoints is completely cut.

[0018] The primary tearing line and / or the secondary tearing line adopts a cutting line with multiple breakpoints, the functional layer part corresponding to the breakpoint of the cutting line is not cut and the length of the breakpoint is 0.02mm to 0.9mm, and the functional layer part corresponding to the part of the cutting line other than the breakpoint is completely cut.

[0019] The electromagnetic induction heating sheet adopts an aluminum foil.

[0020] The electromagnetic induction heating sheet adopts a wireless information integrated sheet, the wireless information integrated sheet comprising a substrate layer, a first adhesive layer and a multi-purpose component; the multi-purpose component comprising a metal layer and a wireless information chip; the metal layer being fitted on the substrate layer through the first adhesive layer, the first adhesive layer being arranged between the metal layer and the substrate layer, the metal layer having an antenna and an electromagnetic induction heating part surrounding the antenna, the antenna being electrically connected with the wireless information chip.

[0021] The electromagnetic induction heating part and the antenna have a spacing therebetween.

[0022] The electromagnetic induction heating part and the antenna of the metal layer are spaced apart from each other and the spacing is 0.1mm to 3mm.

[0023] The electromagnetic induction heating part and the antenna are fully spaced apart.

[0024] The metal layer further comprises at least one physical connection bridge connecting the antenna and the electromagnetic induction heating part.

[0025] The wireless information integrated sheet further comprises a protective layer and a second adhesive layer, the protective layer being combined with the substrate layer and the multi-purpose component through the second adhesive layer, and the protective layer completely covering the multi-purpose component.

[0026] The electromagnetic induction heating sheet has an antenna peripheral tangent line with multiple breakpoints, the part of the electromagnetic induction heating sheet corresponding to the breakpoint of the antenna peripheral tangent line is not cut or partially cut and the length of the breakpoint is 0.02mm to 0.9mm, and the part of the electromagnetic induction heating sheet corresponding to the part of the antenna peripheral tangent line other than the breakpoint is completely cut; the antenna peripheral tangent line is located between the antenna and the electromagnetic induction heating part; the antenna peripheral tangent line is opposite to the secondary tearing line and each breakpoint of the antenna peripheral tangent line is opposite to each breakpoint of the secondary tearing line, or the antenna peripheral tangent line is opposite to the primary tearing line and each breakpoint of the antenna peripheral tangent line is opposite to each breakpoint of the primary tearing line.

[0027] The release coating is wax, varnish or silicone oil.

[0028] The adhesive sealing layer is hot melt adhesive; the material of the hot melt adhesive is one of PE, PP, EMAC, EMAA, EEA, EAA, EBA and EMMA; or, the adhesive sealing layer comprises an adhesive sealing film and an adhesive; the adhesive sealing film is at least one of PE film, PP film, PA film, PVDC film, EVOH film and PET film; the adhesive is arranged between the adhesive sealing film and the electromagnetic induction heating layer.

[0029] After the container bottle opening is sealed by the pull-off type sealing gasket, if the user needs to open the bottle opening, the user first opens the bottle cap of the container, and then directly pulls the pull-off part of the functional layer upward, so that the pull-off part drives the entire first tearing area to be torn off and separated, and the container bottle opening is opened at this time. As can be seen from the foregoing, the entire process of opening the container bottle opening does not need to use tools, which is very convenient. In addition, the functional layer of the present application also has a re-pressing sealing area. When the user locks the bottle cap of the container again after the first tearing area is separated, the bottle cap will press the re-pressing sealing area left on the container bottle opening, so that the present application still has good sealing effect when re-pressing. In addition, if the opening formed by tearing the first tearing area is not large enough during use, the user can also apply force to the second tearing area to make the second tearing area be torn open to increase the opening area. When the second tearing area is separated, the user locks the bottle cap of the container again, and the bottle cap will press the re-pressing sealing area left on the container bottle opening, so that the present application also still has good sealing effect when re-pressing.

[0030] In addition, the electromagnetic induction heating sheet of the present application can integrate electromagnetic induction heating and information interaction dual functions, facilitate product anti-counterfeiting and traceability, and facilitate the automation, digitization and intelligent management of factory, warehouse, logistics, store, unmanned cash register management. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a sectional view of embodiment one of the present application.

[0032] Figure 2 is a top view of embodiment one of the present application.

[0033] Figure 3 is a top view of embodiment two of the present application.

[0034] Figure 4 is a sectional view of embodiment three of the present application.

[0035] Figure 5 is a top view of embodiment three of the present application.

[0036] Figure 6 is a sectional view of embodiment four of the present application.

[0037] Figure 7A top view of the embodiment four of the present application.

[0038] Figure 8 A sectional view of the embodiment five of the present application.

[0039] Figure 9 A sectional view of the embodiment six of the present application.

[0040] Figure 10 A sectional view of the embodiment seven of the present application.

[0041] Figure 11 A sectional view of the embodiment eight of the present application.

[0042] Figure 12 A sectional view of the embodiment nine of the present application.

[0043] Figure 13 A sectional view of the embodiment ten of the present application.

[0044] Figure 14 A sectional view of the first embodiment of the electromagnetic induction heating sheet of the present application.

[0045] Figure 15 A schematic view of the cooperation between the metal layer and the wireless information chip of the first embodiment of the electromagnetic induction heating sheet of the present application.

[0046] Figure 16 A top view of the first embodiment of the electromagnetic induction heating sheet of the present application.

[0047] Figure 17 A sectional view of the second embodiment of the electromagnetic induction heating sheet of the present application.

[0048] Figure 18 A sectional view of the third embodiment of the electromagnetic induction heating sheet of the present application.

[0049] Figure 19 A sectional view of the fourth embodiment of the electromagnetic induction heating sheet of the present application.

[0050] Figure 20 A schematic view of the cooperation between the metal layer and the wireless information chip of the fifth embodiment of the electromagnetic induction heating sheet of the present application.

[0051] Explanation of reference numerals: functional layer 1, secondary tearing line 101, primary tearing line 102, cutting line 103, hollow area 11, primary tearing area 12, pulling part 121, pulling neck 122, re-pressing area 13, secondary tearing area 14, adhesive layer 2, adhesive 3, release block 4, electromagnetic induction heating sheet A, base layer A1, multi-purpose assembly A2, metal layer A21, antenna A211, antenna body A2110, arc-shaped antenna strip A2111, connecting strip A2112, electromagnetic induction heating part A212, physical connection bridge A213, wireless information chip A22, battery A23, encapsulation glue A24, antenna peripheral cutting line A25, protective layer A3, first adhesive layer A4, second adhesive layer A5, adhesive sealing layer B, facial mask C, foaming film D, foaming plate film E, composite film F, connecting film G, adhesive H. DETAILED DESCRIPTION

[0052] Coordination Figures 1 to 20 As shown, the present application discloses a pulling type sealing gasket, which comprises a functional layer 1 and an adhesive layer 2; one of the functional layer 1 and the adhesive layer 2 is provided with an electromagnetic induction heating sheet A, and the adhesive layer 2 has an adhesive sealing layer B; the bottom surface of the functional layer 1 and the top surface of the adhesive layer 2 are strongly bonded and combined by an adhesive 3, and one of the bottom surface of the functional layer 1 and the top surface of the adhesive layer 2 is directly coated with a release block 4 composed of release paint; the functional layer 1 can be provided with a hollow area 11, a primary tearing area 12 and a re-pressing area 13; the primary tearing area 12 has a pulling part 121 and a pulling neck 122 connected thereto, the hollow area 11 is arranged adjacent to the pulling part 121, and the re-pressing area 13 surrounds the hollow area 11 and the primary tearing area 12; the primary tearing area 12 is provided with a primary tearing line 102 at the edge thereof; the release block 4 is opposite to the pulling part 121, and the release block 4 is used to ensure that the pulling part 121 will not be strongly bonded and combined with the adhesive layer 2, so that the pulling part 121 can be easily pulled, and the release paint can be wax, varnish or silicone oil.

[0053] When the pulling type sealing gasket of the present application is used to seal the bottle mouth of a container, the electromagnetic induction heating sheet A is heated by electromagnetic induction, and then the adhesive sealing layer B is melted by heat; after the adhesive sealing layer B is cooled, the adhesive sealing layer B is bonded with the bottle mouth of the container to realize the sealing of the bottle mouth of the container.

[0054] When the user needs to open the bottle mouth of the container, the user first opens the bottle cap of the container, and then directly pulls the pulling part 121 of the functional layer 1 upward with the hand, and the pulling part 121 in turn drives the first tearing line 102 to be disconnected, so that the first tearing area 12 of the pulling type sealing gasket of the application is torn off and separated, so that the pulling type sealing gasket of the application remains the re-sealing area 13 connected with the bottle mouth of the container, and at this time the bottle mouth of the container is opened; as can be seen from the foregoing, the entire process of opening the bottle mouth of the container does not need to use tools, and is very convenient; in addition, the functional layer 1 of the application also has the re-sealing area 13, when the user re-locks the bottle cap of the container after the first tearing area 12 is separated, the bottle cap will press the re-sealing area 13 left on the bottle mouth of the container, so that the application still has good sealing effect when re-sealing. In addition, if the opening formed by tearing the first tearing area 12 is not large enough during use, the user can also apply force to the re-sealing area 13 to tear the re-sealing area 13 and increase the opening area.

[0055] In order to further explain the technical scheme of the application, the application will be described in detail below through specific examples.

[0056] Example one: Cooperation Figure 1 and Figure 2 As shown in the figure, in the first embodiment of the application, the functional layer 1 includes a mask C, a foaming film D, a foaming plate film E, a composite film F, a foaming film D and a connecting film G which are sequentially compounded from top to bottom; and the adhesive layer 2 includes an electromagnetic induction heating sheet A and a sealing layer B which are sequentially compounded from top to bottom, and the sealing layer B adopts a sealing film; the top surface of the electromagnetic induction heating sheet A is directly coated with a release block 4 composed of a release coating. Among them, the peeling strength between the functional layer 1 and the adhesive layer 2 is greater than 12N / 15mm, and the adhesive 3 can be dry composite glue or hot melt adhesive, and the material of the hot melt adhesive can be one of PE, PP, EMAC, EEA, EAA, EMAA and EMMA; the mask C, the foaming film D, the foaming plate film E, the composite film F, the foaming film D and the connecting film G can be compounded by the adhesive H between each other, and the peeling strength between the mask C, the foaming film D, the foaming plate film E, the composite film F, the foaming film D and the connecting film G is greater than 5N / 15mm; the electromagnetic induction heating sheet A and the sealing film can be compounded by the adhesive H between each other, and the peeling strength between the electromagnetic induction heating sheet A and the sealing film is greater than 4N / 15mm.

[0057] In the embodiment one of the present application, the face film C is at least one of PI layer, PEN layer, PET layer, PE layer, PA layer and PP layer, the thickness of the face film C is 12-150 μm; the foamed film D is EPE layer or EPP layer, the thickness of the foamed film D is 60-300 μm, the foamed film D has lower foaming rate and good compounding effect with the face film C; the foamed plate film E is EPE layer or EPP layer, the thickness of the foamed plate film E is 0.6-3 mm or the thickness of the foamed plate film E is 10-200 μm, the foamed plate film E plays the role of thickening; the composite film F is at least one of PEN layer, PET layer, PP layer, PA layer and PE layer, the thickness of the composite film F is 12-3000 μm; the connecting film G is at least one of PET layer, EPE layer, EPP layer, PP layer, PA layer and PE layer, the thickness of the connecting film G is 12-200 μm; the sealing film is at least one of PE layer, PP layer, PA layer, PVDC layer, EVOH layer and PET layer, which makes the re-pressing sealing area 13 adhere to the bottle mouth after the electromagnetic induction sealing, the thickness of the sealing film is 12-100 μm; the thickness of the electromagnetic induction heating sheet A is 10-2.5 mm, the electromagnetic induction heating sheet A can adopt aluminum foil, the thickness of the aluminum foil is 10-40 μm, the electromagnetic induction heating sheet A can also adopt wireless information integrated sheet, the thickness of the wireless information integrated sheet is 27-2.5 mm. It is to be noted that the sealing layer B is not limited to the sealing film; the sealing layer B can also directly adopt hot melt adhesive, the material of the hot melt adhesive is one of PE, PP, EMAC, EMAA, EEA, EAA, EBA and EMMA, which makes the re-pressing sealing area 13 adhere to the bottle mouth after the electromagnetic induction sealing, the thickness of the hot melt adhesive is 4-100 μm, the hot melt adhesive does not need to use the adhesive H when compounded with other film layers.

[0058] In the embodiment one of the present application, the coating area of the release block 4 is larger than the area of the pulling part 121 and the hollow area 11, so that when the functional layer 1 is cut after the functional layer 1 is compounded with the adhesive layer 2 and the part of the functional layer 1 in the hollow area 11 is cut, the part of the functional layer 1 in the hollow area 11 can be easily removed, and the pulling part 121 is not easily adhered to the adhesive layer 2 below, so that the pulling part 121 can be easily pulled up.

[0059] In an embodiment of the present invention, the resealing area 13 and the first tear area 12 of the functional layer 1 are separated by a first tear line 102 and a hollow area 11. The first tear line 102 can be a cutting line with multiple break points. The portion of the functional layer 1 corresponding to the portion of the cutting line other than the break points is completely cut off. The portion of the functional layer 1 corresponding to the break points of the cutting line is not cut or is partially cut in the vertical direction to ensure the structural stability of the functional layer 1. The cutting line can ensure that when the user lifts the lifting part 121, the lifting part 121 can effectively break the first tear line 102. The hollow area 1221 is cut by a cutting line 103. The cutting line 103 and the first tear line 102 can be cut by a continuous arrangement of a cutting blade (i.e., cut by a single cutting blade). The cutting blade has an integrated blade corresponding to the cutting line 103 and the first tear line 102.

[0060] In Embodiment 1 of the present invention, in conjunction with Figure 2 As shown, the tear line 102 is equivalent to the line formed by connecting the dots agfec; the hollow area 11 refers to the area surrounded by the dots aicba, and the hollow area 11 is formed by cutting the cutting line 103 formed by the dots aicba; the lifting part 121 is equivalent to the roughly circular area surrounded by the dots abca, and the lifting neck 122 is equivalent to the area surrounded by the dots agfeca.

[0061] The following provides a method for manufacturing a pull-up sealing gasket according to Embodiment 1 of the present invention.

[0062] First, apply adhesive H to the mask roll and dry-laminate it with the foam film roll, and send them together into the curing chamber for more than 24 hours to make the first composite roll. Secondly, apply adhesive H to the foam film surface of the first composite section roll and dry-laminate it with the foam board film roll, and send them together into the curing chamber for more than 24 hours to produce the surface composite section roll. Then, apply adhesive H to the foamed film material of the composite section roll and dry-laminate it with the composite film roll. Then send them into the curing chamber for more than 24 hours to make the second composite section roll. Next, adhesive H is applied to the composite film surface of the second composite section roll and dry-laminated with the foamed film roll, and then sent into the curing chamber for more than 24 hours to produce the third composite section roll. Next, adhesive H is applied to the foamed film surface of the third composite section roll and dry-laminated with the connecting film roll, and then sent into the curing chamber for more than 24 hours to produce the functional layer roll. Then, the adhesive H is coated on the lower surface of the electromagnetic induction heating sheet roll material, and dry compounding is performed with the sealing film roll material, and they are sent into the curing chamber for more than 24 hours to form a fourth composite roll material; or, hot melt adhesive is coated on the lower surface of the electromagnetic induction heating sheet roll material to form a fourth composite roll material; Then, a release block is coated on the electromagnetic induction heating sheet of the fourth composite roll material to form a lower composite roll material. Then, the adhesive H is coated on the connecting film surface of the functional layer roll material, and dry compounding is performed with the bottom surface of the electromagnetic induction heating sheet of the lower composite roll material, and they are sent into the curing chamber for more than 24 hours to form a pull-tab type sealing gasket blank; Then, the pull-tab type sealing gasket blank is cut to form a pull-tab type sealing gasket. Finally, the pull-tab type sealing gasket blank is cut to form a pull-tab type sealing gasket.

[0063] Example Two: Cooperation Figure 3 The difference between the second embodiment of the present application and the first embodiment is that the functional layer is further provided with a second tear-off area. Specifically, in the second embodiment of the present application, the functional layer 1 is further provided with a second tear-off area 14, the first tear-off area 12 and the second tear-off area 14 are separated by the first tear-off line 102, and the first tear-off line 102 is connected to at least one side of the two sides of the pull-tab 121; the re-sealing area 13 surrounds the hollow area 11, the first tear-off area 12 and the second tear-off area 14; the re-sealing area 13 and the second tear-off area 14 are separated by the annular second tear-off line 101. In this way, if the opening formed by tearing the first tear-off area 12 in the present application is not large enough when in use, the user can also apply force to the second tear-off area 14 to make the second tear-off line 101 break, thereby tearing off the second tear-off part 132 of the second tear-off area 14 to increase the opening area; after the second tear-off area 14 is torn off, the re-sealing area 13 remains in the bottle opening, so that when the user locks the bottle cap of the container again, the bottle cap will press the re-sealing area 13 left in the bottle opening of the container, thereby making the present application still have good sealing effect when re-sealing.

[0064] In the second embodiment of the present application, the second tear-off line 101 partially overlaps the first tear-off line 102, so that after the first tear-off line 102 is completely broken, a simple force applied to the functional layer 1 in the area inside the second tear-off line 101 can make the second tear-off line 101 completely broken.

[0065] Cooperation Figure 3As shown in the embodiment two of the present application, the secondary tearing line 101 is equivalent to the line connected by points e-f-j-h-e; the primary tearing line 102 is equivalent to the line connected by points a-g-f-e-c; and the hollow area 11 refers to the area surrounded by points a-i-c-b-a, which is cut by the cutting line 103 composed of points a-i-c-b-a; the pulling part 121 is equivalent to the circular area surrounded by points a-b-c-a, and the pulling neck 122 is equivalent to the area surrounded by points a-g-f-e-c-a.

[0066] In the embodiment two of the present application, the primary tearing line 102 and the secondary tearing line 101 of the functional layer 1 can adopt a cutting line with multiple breakpoints, the part of the functional layer 1 corresponding to the part of the cutting line except the breakpoints is completely cut, and the part of the functional layer 1 corresponding to the breakpoints of the cutting line is not cut or partially cut in the vertical direction to ensure the structural stability of the functional layer 1; the cutting line can make the pulling part 121 effectively disconnect the primary tearing line 102 when the pulling part 121 is pulled. The hollow area 1221 is cut by the cutting line 103, and the cutting line 103, the secondary tearing line 101 and the primary tearing line 102 are cut by a continuous cutting knife (i.e. cut by a cutting knife at one time), and the cutting knife has an integral knife edge corresponding to the cutting line 103, the secondary tearing line 101 and the primary tearing line 102.

[0067] Embodiment three: Cooperation Figure 4 And Figure 5 As shown in the embodiment three of the present application, the functional layer 1 includes a mask C, a composite film F and a connecting film G which are sequentially compounded from top to bottom; and the adhesive layer 2 includes the electromagnetic induction heating sheet A and the sealing layer B which are sequentially compounded from top to bottom, and the sealing layer B adopts a sealing film; the top surface of the electromagnetic induction heating sheet A is directly coated with a release block 4 composed of a release coating. Among them, the adhesive 3 makes the peeling strength between the functional layer 1 and the adhesive layer 2 greater than 12N / 15mm, and the adhesive 3 can be dry composite glue or hot melt adhesive, and the material of the hot melt adhesive can be one of PE, PP, EMAC, EEA, EAA, EMAA and EMMA; the mask C, the composite film F and the connecting film G can be compounded by the adhesive H, and the peeling strength between the mask C, the composite film F and the connecting film G is greater than 5N / 15mm; the electromagnetic induction heating sheet A and the sealing film can also be compounded by the adhesive H, and the peeling strength between the electromagnetic induction heating sheet A and the sealing film is greater than 4N / 15mm.

[0068] In the third embodiment of the present application, the face film C is at least one of PI layer, PEN layer, PET layer, PE layer, PA layer and PP layer, the thickness of the face film C is 12-150 μm; the composite film F is at least one of EPP layer, EPE layer, PEN layer, PET layer, PP layer, PA layer and PE layer, the thickness of the composite film F is 12-3000 μm; the connecting film G is at least one of PET layer, EPE layer, EPP layer, PP layer, PA layer and PE layer, the thickness of the connecting film G is 12-200 μm; the sealing film is at least one of PE layer, PP layer, PA layer, PVDC layer, EVOH layer and PET layer, which is used to make the re-pressing sealing area 13 adhere to the bottle mouth after the electromagnetic induction sealing, the thickness of the sealing film is 12-100 μm; the thickness of the electromagnetic induction heating sheet A is 10-2.5 mm. It should be noted that the sealing layer B is not limited to the sealing film; the sealing layer B can also directly use hot melt adhesive, the material of the hot melt adhesive is one of PE, PP, EMAC, EMAA, EEA, EAA, EBA and EMMA, which is used to make the re-pressing sealing area 13 adhere to the bottle mouth after the electromagnetic induction sealing, the thickness of the hot melt adhesive is 4-100 μm, and the hot melt adhesive does not need to use the adhesive H when being combined with other film layers.

[0069] In the third embodiment of the present application, the coating area of the release block 4 is larger than the area where the pulling part 121 and the hollow area 11 are located, so that when the functional layer 1 and the adhesive layer 2 are combined and then the part of the functional layer 1 in the hollow area 11 is cut off, the part of the functional layer 1 in the hollow area 11 can be easily separated, and the pulling part 121 is not easily adhered to the adhesive layer 2 below, so that the pulling part 121 can be easily pulled up.

[0070] Cooperation Figure 5 As shown in the third embodiment of the present application, the functional layer 1 is further provided with a secondary tearing area 14, the primary tearing area 12 and the secondary tearing area 14 are separated by the primary tearing line 102, and at least one side of the primary tearing line 102 is connected with both sides of the pulling part 121; the re-pressing sealing area 13 surrounds the hollow area 11, the primary tearing area 12 and the secondary tearing area 14; the re-pressing sealing area 13 and the secondary tearing area 14 are separated by the annular secondary tearing line 101. The primary tearing line 102 surrounds the pulling part 121, one end of the primary tearing line 102 is connected with one side of the pulling part 121, and the other end of the primary tearing line 102 intersects with the main body of the primary tearing line 102, so that when the pulling part 121 is pulled, the primary tearing area 12 of the functional layer 1 can be completely separated. The secondary tearing line 101 and the primary tearing line 102 partially overlap, so that when the primary tearing line 102 is completely disconnected, the secondary tearing line 101 can be completely disconnected by applying force to the secondary tearing area 14 of the functional layer 1.

[0071] Cooperation Figure 5As shown in the embodiment three of the present application, the secondary tearing line 101 is equivalent to the line connected by points i-j-k-m-i; the primary tearing line 102 is equivalent to the line connected by points a-g-h-i-j-k-l-g; and the hollow area 11 refers to the area surrounded by points a-b-c-d-e-f-a, which is cut by the cutting line 103 composed of points a-b-c-d-e-f-a; the pulling part 121 is equivalent to the circular area surrounded by points a-b-c-d-a; and the pulling neck 122 is equivalent to the area surrounded by points e-f-a-g-h-i-j-k-l-g.

[0072] Embodiment four: Cooperation Figure 6 And Figure 7 As shown in the embodiment four of the present application, the functional layer 1 comprises the face film C and the connecting film G which are sequentially compounded from top to bottom; and the adhesive layer 2 comprises the electromagnetic induction heating sheet A and the sealing layer B which are sequentially compounded from top to bottom, and the sealing layer B adopts the sealing film; the top surface of the electromagnetic induction heating sheet A is directly coated with the release block 4 composed of release coating. Wherein, the peeling strength between the functional layer 1 and the adhesive layer 2 is greater than 12N / 15mm, and the adhesive 3 can be dry compounded glue or hot melt adhesive, and the material of the hot melt adhesive can be one of PE, PP, EMAC, EEA, EAA, EMAA and EMMA; the face film C and the connecting film G can be compounded by the adhesive H, and the peeling strength between the face film C and the connecting film G is greater than 5N / 15mm; the electromagnetic induction heating sheet A and the sealing film can also be compounded by the adhesive H, and the peeling strength between the electromagnetic induction heating sheet A and the sealing film is greater than 4N / 15mm. In the embodiment four of the present application, the face film C is at least one of PI layer, PEN layer, PET layer, PE layer, PA layer and PP layer, and the thickness of the face film C is 12μm~150μm; the connecting film G is at least one of PET layer, EPE layer, EPP layer, PP layer, PA layer and PE layer, and the thickness of the connecting film G is 12μm~200μm; the sealing film is at least one of PE layer, PP layer, PA layer, PVDC layer, EVOH layer and PET layer, and the thickness of the sealing film is 12μm~100μm, so that the re-pressing sealing area 13 is adhered to the bottle mouth after the electromagnetic induction sealing; and the thickness of the electromagnetic induction heating sheet A is 10μm~2.5mm. It should be noted that the sealing layer B is not limited to the sealing film; the sealing layer B can also directly adopt hot melt adhesive, and the material of the hot melt adhesive is one of PE, PP, EMAC, EMAA, EEA, EAA, EBA and EMMA, so that the re-pressing sealing area 13 is adhered to the bottle mouth after the electromagnetic induction sealing, and the thickness of the hot melt adhesive is 4μm~100μm, and the hot melt adhesive does not need to be compounded by the adhesive H.

[0073] In the fourth embodiment of the present application, the coated area of the release block 4 is larger than the area where the pulling part 121 and the hollow area 11 are located, so that after the functional layer 1 is combined with the adhesive layer 2, when the part of the functional layer 1 in the hollow area 11 is cut off, the part of the functional layer 1 in the hollow area 11 can be easily separated, and the pulling part 121 is not easily adhered to the adhesive layer 2 below, so that the pulling part 121 can be easily pulled up.

[0074] Cooperation Figure 7 In the fourth embodiment of the present application, the functional layer 1 is further provided with a secondary tearing area 14, the primary tearing area 12 and the secondary tearing area 14 are separated by a primary tearing line 102, and the primary tearing line 102 is connected to at least one side of the two sides of the pulling part 121; the resealing area 13 surrounds the hollow area 11, the primary tearing area 12 and the secondary tearing area 14; the resealing area 13 and the secondary tearing area 14 are separated by a ring-shaped secondary tearing line 101. The two ends of the primary tearing line 102 are connected to the two sides of the pulling part 121, so that when the pulling part 121 is pulled, the primary tearing area 12 of the functional layer 1 can be completely separated. The secondary tearing line 101 is completely separated from the primary tearing line 102, and after the primary tearing line 102 is completely disconnected, applying force to the secondary tearing area 14 of the functional layer 1 can make the secondary tearing line 101 completely disconnected.

[0075] Cooperation Figure 7 In the fourth embodiment of the present application, the secondary tearing line 101 is equivalent to a line connected by points h-i-j; the primary tearing line 102 is equivalent to a line connected by points a-f-e-d-c; and the hollow area 11 refers to an area surrounded by points a-g-c-b-a, which is cut off by a cutting line 103 composed of points a-g-c-b-a; the pulling part 121 is equivalent to a circular area surrounded by points a-b-c-a, and the pulling neck part 122 is equivalent to an area surrounded by points a-f-e-d-c-a.

[0076] Embodiment five: Cooperation Figure 8 The difference between the fifth embodiment of the present application and the first to fourth embodiments is that the layer structure of the functional layer 1 and the adhesive layer 2 is different.

[0077] Specifically, in the fifth embodiment of the present application, the functional layer 1 comprises, from top to bottom, a face film C, a foamed film D, a foamed plate film E, a composite film F, a foamed film D, an electromagnetic induction heating sheet A and a connecting film G; and the adhesive layer 2 only comprises a sealing layer B, which is made of a sealing film; the bottom surface of the connecting film G is directly coated with a release block 4 made of a release coating. The peeling strength between the functional layer 1 and the adhesive layer 2 is greater than 12 N / 15 mm, and the adhesive 3 can be a dry composite glue or a hot melt adhesive, and the material of the hot melt adhesive can be one of PE, PP, EMAC, EEA, EAA, EMAA and EMMA; the face film C, the foamed film D, the foamed plate film E, the composite film F, the foamed film D, the electromagnetic induction heating sheet A and the connecting film G can be compounded by the adhesive H, and the peeling strength between the face film C, the foamed film D, the foamed plate film E, the composite film F, the foamed film D, the electromagnetic induction heating sheet A and the connecting film G is greater than 5 N / 15 mm.

[0078] In the fifth embodiment of the present application, the face film C is at least one of a PI layer, a PEN layer, a PET layer, a PE layer, a PA layer and a PP layer, and the thickness of the face film C is 12 μm to 150 μm; the foamed film D is an EPE layer or an EPP layer, and the thickness of the foamed film D is 60 μm to 300 μm, and the foamed film D has a low foaming rate and good compounding effect with the face film C; the foamed plate film E is an EPE layer or an EPP layer, and the thickness of the foamed plate film E is 0.6 mm to 3 mm, and the foamed plate film E has a thickening effect; the composite film F is at least one of an EPP layer, an EPE layer, a PEN layer, a PET layer, a PP layer, a PA layer and a PE layer, and the thickness of the composite film F is 12 μm to 3000 μm; the connecting film G is at least one of a PET layer, an EPE layer, an EPP layer, a PP layer, a PA layer and a PE layer, and the thickness of the connecting film G is 12 μm to 200 μm; the sealing film is at least one of a PE layer, a PP layer, a PA layer, a PVDC layer, an EVOH layer and a PET layer, and the sealing film is selected to make the re-pressing sealing area 13 adhere to the bottle opening after electromagnetic induction sealing, and the thickness of the sealing film is 12 μm to 100 μm; the thickness of the electromagnetic induction heating sheet A is 10 μm to 2.5 mm. It should be noted that the sealing layer B is not limited to using a sealing film; the sealing layer B can also directly use a hot melt adhesive, and the material of the hot melt adhesive is one of PE, PP, EMAC, EMAA, EEA, EAA, EBA and EMMA, which is selected to make the re-pressing sealing area 13 adhere to the bottle opening after electromagnetic induction sealing, and the thickness of the hot melt adhesive is 4 μm to 100 μm, and the hot melt adhesive does not need to use the adhesive H when compounded with other film layers.

[0079] In the fifth embodiment of the present application, the coating area of the release block 4 is larger than the area where the pulling part 121 is located, so that after the functional layer 1 is cut at the hollow area 11 and then combined with the adhesive layer 2, the pulling part 121 is not easily adhered to the adhesive layer 2 below, and the pulling part 121 can be easily pulled up.

[0080] The sixth embodiment of the present application is different from the first to fourth embodiments in that the layer structure of the functional layer 1 and the adhesive layer 2 is different. Cooperation Figure 9 As shown in the drawings, the sixth embodiment of the present application is different from the first to fourth embodiments in that the layer structure of the functional layer 1 and the adhesive layer 2 is different.

[0081] Specifically, in the sixth embodiment of the present application, the functional layer 1 comprises, from top to bottom, a film C, a foamed plate film E, a composite film F, a foamed film D, an electromagnetic induction heating sheet A and a connecting film G; and the adhesive layer 2 only comprises a sealing layer B, which is made of a sealing film; the bottom surface of the connecting film G is directly coated with a release block 4 made of a release coating. The peeling strength between the functional layer 1 and the adhesive layer 2 is greater than 12N / 15mm, and the adhesive 3 can be a dry composite glue or a hot melt adhesive, and the material of the hot melt adhesive can be one of PE, PP, EMAC, EEA, EAA, EMAA and EMMA; the film C, the foamed plate film E, the composite film F, the foamed film D, the electromagnetic induction heating sheet A and the connecting film G can be compounded by the adhesive H, and the peeling strength between the film C, the foamed plate film E, the composite film F, the foamed film D, the electromagnetic induction heating sheet A and the connecting film G is greater than 5N / 15mm.

[0082] In the embodiment six of the present application, the face film C is at least one of PI layer, PEN layer, PET layer, PE layer, PA layer and PP layer, the thickness of the face film C is 12-150 μm; the foamed film D is EPE layer or EPP layer, the thickness of the foamed film D is 60-300 μm, the foamed film D has lower foaming rate and good compounding effect with the face film C; the foamed plate film E is EPE layer or EPP layer, the thickness of the foamed plate film E is 0.6-3 mm, the foamed plate film E plays the role of thickening; the composite film F is at least one of EPP layer, EPE layer, PEN layer, PET layer, PP layer, PA layer and PE layer, the thickness of the composite film F is 12-3000 μm; the connecting film G is at least one of PET layer, EPE layer, EPP layer, PP layer, PA layer and PE layer, the thickness of the connecting film G is 12-200 μm; the sealing film is at least one of PE layer, PP layer, PA layer, PVDC layer, EVOH layer and PET layer, which is used to make the re-pressing sealing area 13 adhere to the bottle mouth after the electromagnetic induction sealing, the thickness of the sealing film is 12-100 μm; the thickness of the electromagnetic induction heating sheet A is 10-2.5 mm. It should be noted that the sealing layer B is not limited to the sealing film; the sealing layer B can also directly use hot melt adhesive, the material of the hot melt adhesive is one of PE, PP, EMAC, EMAA, EEA, EAA, EBA and EMMA, which is used to make the re-pressing sealing area 13 adhere to the bottle mouth after the electromagnetic induction sealing, the thickness of the hot melt adhesive is 4-100 μm, and the hot melt adhesive does not need to use the adhesive H when being compounded with other film layers.

[0083] In the embodiment six of the present application, the coating area of the release block 4 is larger than the area where the pulling part 121 is located, so that after the functional layer 1 is cut to remove the part of the functional layer 1 in the hollowed-out area 11 and then compounded with the adhesive layer 2, the pulling part 121 is not easily adhered to the adhesive layer 2 below, and the pulling part 121 can be easily pulled up.

[0084] Embodiment seven Cooperation Figure 10 As shown in the drawings, the embodiment seven of the present application is different from the embodiments one to four in that the layer structure of the functional layer 1 and the adhesive layer 2 is different.

[0085] Specifically, in the seventh embodiment of the present application, the functional layer 1 comprises, from top to bottom, a face film C, a composite film F, an electromagnetic induction heating sheet A and a connecting film G; and the adhesive layer 2 only comprises a sealing layer B, which is made of a sealing film; the bottom surface of the connecting film G is directly coated with a release block 4 made of a release coating. The peeling strength between the functional layer 1 and the adhesive layer 2 is greater than 12 N / 15 mm, and the adhesive 3 can be a dry composite glue or a hot melt adhesive, and the material of the hot melt adhesive can be one of PE, PP, EMAC, EEA, EAA, EMAA and EMMA; the face film C, the composite film F, the electromagnetic induction heating sheet A and the connecting film G can be compounded by the adhesive H, and the peeling strength between the face film C, the composite film F, the electromagnetic induction heating sheet A and the connecting film G is greater than 5 N / 15 mm.

[0086] In the seventh embodiment of the present application, the face film C is at least one of a PI layer, a PEN layer, a PET layer, a PE layer, a PA layer and a PP layer, and the thickness of the face film C is 12 μm to 150 μm; the connecting film G is at least one of a PET layer, an EPE layer, an EPP layer, a PP layer, a PA layer and a PE layer, and the thickness of the connecting film G is 12 μm to 200 μm; the composite film F is at least one of a PEN layer, a PET layer, a PP layer, a PA layer and a PE layer, and the thickness of the composite film F is 12 μm to 3000 μm; the sealing film is at least one of a PE layer, a PP layer, a PA layer, a PVDC layer, an EVOH layer and a PET layer, and the thickness of the sealing film is 12 μm to 150 μm, so that the re-pressing sealing area 13 adheres to the bottle mouth after electromagnetic induction sealing; the thickness of the electromagnetic induction heating sheet A is 10 μm to 2.5 mm. It should be noted that the sealing layer B is not limited to the sealing film; the sealing layer B can also directly use a hot melt adhesive, and the material of the hot melt adhesive is one of PE, PP, EMAC, EMAA, EEA, EAA, EBA and EMMA, so that the re-pressing sealing area 13 adheres to the bottle mouth after electromagnetic induction sealing, and the thickness of the hot melt adhesive is 4 μm to 100 μm, and the hot melt adhesive does not need to use the adhesive H when it is compounded with other film layers.

[0087] In the seventh embodiment of the present application, the coating area of the release block 4 is greater than the area where the pulling part 121 is located, so that after the functional layer 1 is cut to remove the part of the functional layer 1 in the hollow area 11 and then compounded with the adhesive layer 2, the pulling part 121 is not easily adhered to the adhesive layer 2 below, and the pulling part 121 can be easily pulled up.

[0088] Embodiment eight Cooperation Figure 11 As shown in the drawings, the eighth embodiment of the present application is different from the first to fourth embodiments in that the layer structure of the functional layer 1 and the adhesive layer 2 is different.

[0089] Specifically, in the eighth embodiment of the present application, the functional layer 1 comprises, from top to bottom, the face film C, the electromagnetic induction heating sheet A and the connecting film G; and the adhesive layer 2 only comprises the sealing layer B, which is made of a sealing film; the bottom surface of the connecting film G is directly coated with the release block 4 made of a release coating. The peeling strength between the functional layer 1 and the adhesive layer 2 is greater than 12 N / 15 mm, and the adhesive 3 can be a dry composite glue or a hot melt adhesive, and the material of the hot melt adhesive can be one of PE, PP, EMAC, EEA, EMAA and EMMA; the face film C, the electromagnetic induction heating sheet A and the connecting film G can be compounded by the adhesive H, and the peeling strength between the face film C, the electromagnetic induction heating sheet A and the connecting film G is greater than 5 N / 15 mm.

[0090] In the eighth embodiment of the present application, the face film C is at least one of PI layer, PEN layer, PET layer, PE layer, PA layer and PP layer, and the thickness of the face film C is 12 μm-150 μm; the connecting film G is at least one of PET layer, EPE layer, EPP layer, PP layer, PA layer and PE layer, and the thickness of the connecting film G is 12 μm-200 μm; the sealing film is at least one of PE layer, PP layer, PA layer, PVDC layer, EVOH layer and PET layer, which is selected to make the re-pressing sealing area 13 adhere to the bottle mouth after electromagnetic induction sealing, and the thickness of the sealing film is 12 μm-100 μm; the thickness of the electromagnetic induction heating sheet A is 10 μm-2.5 mm. It should be noted that the sealing layer B is not limited to the sealing film; the sealing layer B can also directly use hot melt adhesive, and the material of the hot melt adhesive is one of PE, PP, EMAC, EMAA, EEA, EAA, EBA and EMMA, which is selected to make the re-pressing sealing area 13 adhere to the bottle mouth after electromagnetic induction sealing, and the thickness of the hot melt adhesive is 4 μm-100 μm, and the hot melt adhesive does not need to use the adhesive H when it is compounded with other film layers.

[0091] In the eighth embodiment of the present application, the coating area of the release block 4 is greater than the area of the pulling part 121, so that after the functional layer 1 is cut to remove the part of the functional layer 1 in the hollow area 11 and then compounded with the adhesive layer 2, the pulling part 121 is not easily adhered to the adhesive layer 2 below, and the pulling part 121 can be easily pulled up.

[0092] The manufacturing method of the pulling type sealing gasket in the eighth embodiment of the present application is provided as follows.

[0093] First, the adhesive H is coated on the face film roll stock and dry compounded with the connecting film roll stock, and then fed into the curing chamber for more than 24 hours to make the first compounded roll stock.

[0094] Then, the electromagnetic induction heating sheet of the functional layer roll is coated with an adhesive H and dry compounded with the connecting film roll of the first composite roll, and sent into the curing chamber for more than 24 hours to make the functional layer roll; Then, the lower surface of the electromagnetic induction heating sheet of the functional layer roll is coated with a release block 4, and the functional layer roll is cut into a secondary tearing line 101, a pulling neck 131, a pulling part 121, a hollow area 11 and a primary tearing line 134; wherein the coating area of the release block 4 is not less than the pulling part 121; Then, the electromagnetic induction heating sheet of the functional layer roll is coated with an adhesive H and dry compounded with the connecting film roll of the first composite roll, and sent into the curing chamber for more than 24 hours to make the functional layer roll; Finally, the pulling type sealing gasket blank is cut to make the pulling type sealing gasket.

[0095] Example Nine: In combination Figure 12 As shown in the drawings, the difference between the ninth embodiment of the present application and the first to fourth embodiments is that the layer structure of the functional layer 1 and the adhesive layer 2 is different.

[0096] In combination Figure 12 As shown in the drawings, in the ninth embodiment of the present application, the functional layer 1 comprises a facial mask C, a foamed sheet film E, a composite film F, a foamed film D and a connecting film G which are sequentially compounded from top to bottom; and the adhesive layer 2 comprises the electromagnetic induction heating sheet A and the sealing layer B which are sequentially compounded from top to bottom, and the sealing layer B adopts a sealing film; the bottom surface of the connecting film G is directly coated with a release block 4 composed of a release coating. Among them, the peeling strength between the functional layer 1 and the adhesive layer 2 is greater than 12N / 15mm, and the adhesive 3 can be dry compounded glue or hot melt adhesive, and the material of the hot melt adhesive can be one of PE, PP, EMAC, EEA, EAA, EMAA and EMMA; the facial mask C, the foamed sheet film E, the composite film F, the foamed film D and the connecting film G can be compounded by the adhesive H, and the peeling strength between the facial mask C, the foamed sheet film E, the composite film F, the foamed film D and the connecting film G is greater than 5N / 15mm; the electromagnetic induction heating sheet A and the sealing film can also be compounded by the adhesive H, and the peeling strength between the electromagnetic induction heating sheet A and the sealing film is greater than 4N / 15mm.

[0097] In the ninth embodiment of the present application, the face film C is at least one of a PI layer, a PEN layer, a PET layer, a PE layer, a PA layer and a PP layer, and the thickness of the face film C is 12-150 μm; the foamed film D is an EPE layer or an EPP layer, and the thickness of the foamed film D is 60-300 μm, and the foamed film D has a low foaming rate and is good in compounding effect with the face film C; the foamed sheet film E is an EPE layer or an EPP layer, and the thickness of the foamed sheet film E is 0.6-3 mm, and the foamed sheet film E has a thickening effect; the composite film F is at least one of a PEN layer, a PET layer, a PP layer, a PA layer and a PE layer, and the thickness of the composite film F is 12-3000 μm; the connecting film G is at least one of a PET layer, an EPE layer, an EPP layer, a PP layer, a PA layer and a PE layer, and the thickness of the connecting film G is 12-200 μm; the sealing film is at least one of a PE layer, a PP layer, a PA layer, a PVDC layer, an EVOH layer and a PET layer, and is used to make the re-pressing sealing area 13 adhere to the bottle mouth after the electromagnetic induction sealing, and the thickness of the sealing film is 12-100 μm; the thickness of the electromagnetic induction heating sheet A is 10-2.5 mm. It should be noted that the sealing layer B is not limited to the sealing film; the sealing layer B can also directly use hot melt adhesive, and the hot melt adhesive is made of one of PE, PP, EMAC, EMAA, EEA, EAA, EBA and EMMA, and is used to make the re-pressing sealing area 13 adhere to the bottle mouth after the electromagnetic induction sealing, and the thickness of the hot melt adhesive is 4-100 μm, and the hot melt adhesive does not need to use the adhesive H when being compounded with other film layers.

[0098] In the ninth embodiment of the present application, the coating area of the release block 4 is larger than the area where the pulling part 121 is located, so that after the functional layer 1 is cut to remove the part of the functional layer 1 in the hollowed-out area 11 and then compounded with the adhesive layer 2, the pulling part 121 is not easily adhered to the adhesive layer 2 below, and the pulling part 121 can be easily pulled up.

[0099] Embodiment ten Cooperation Figure 13 As shown in the drawings, the tenth embodiment of the present application is different from the first to fourth embodiments in that the layer structures of the functional layer 1 and the adhesive layer 2 are different.

[0100] Cooperation Figure 13As shown, in the tenth embodiment of the present application, the functional layer 1 comprises the face film C and the connecting film G which are sequentially laminated from top to bottom; and the adhesive layer 2 comprises the electromagnetic induction heating sheet A and the sealing layer B which are sequentially laminated from top to bottom, the sealing layer B adopts the sealing film; the bottom surface of the connecting film G is directly coated with the release block 4 which is composed of release coating. The peeling strength between the functional layer 1 and the adhesive layer 2 is greater than 12N / 15mm, the adhesive 3 can be dry lamination glue or hot melt adhesive, the material of the hot melt adhesive can be one of PE, PP, EMAC, EEA, EAA, EMAA and EMMA; the face film C and the connecting film G can be laminated by the adhesive H, the peeling strength between the face film C and the connecting film G is greater than 5N / 15mm; the electromagnetic induction heating sheet A and the sealing film can be laminated by the adhesive H, the peeling strength between the electromagnetic induction heating sheet A and the sealing film is greater than 4N / 15mm.

[0101] In the tenth embodiment of the present application, the face film C is at least one of PI layer, PEN layer, PET layer, PE layer, PA layer and PP layer, the thickness of the face film C is 12μm~150μm; the connecting film G is at least one of PET layer, EPE layer, EPP layer, PP layer, PA layer and PE layer, the thickness of the connecting film G is 12μm~200μm; the sealing film is at least one of PE layer, PP layer, PA layer, PVDC layer, EVOH layer and PET layer, the thickness of the sealing film is 12μm~100μm, so that the re-pressing sealing area 13 is adhered to the bottle mouth after the electromagnetic induction sealing; the electromagnetic induction heating sheet A can adopt aluminum foil, the thickness of the aluminum foil is 10μm~40μm. It should be noted that the sealing layer B is not limited to the sealing film; the sealing layer B can also directly adopt hot melt adhesive, the material of the hot melt adhesive is one of PE, PP, EMAC, EMAA, EEA, EAA, EBA and EMMA, so that the re-pressing sealing area 13 is adhered to the bottle mouth after the electromagnetic induction sealing, the thickness of the hot melt adhesive is 4μm~100μm, and the hot melt adhesive does not need to be assisted by the adhesive H when being laminated with other film layers.

[0102] In the tenth embodiment of the present application, the coating area of the release block 4 is greater than the area where the pulling part 121 is located, so that after the functional layer 1 is cut to remove the part of the functional layer 1 in the hollow area 11 and then laminated with the adhesive layer 2, the pulling part 121 is not easily adhered to the adhesive layer 2 below, and the pulling part 121 can be easily pulled up.

[0103] It should be noted that for the above-mentioned first embodiment, third embodiment, fourth embodiment and ninth embodiment, the bottom surface of the connecting film G can be directly coated with the release block 4 which is composed of release coating instead of the bottom surface of the electromagnetic induction heating sheet A.

[0104] To facilitate the understanding of the present application, the following specifically introduces several embodiments of the electromagnetic induction heating sheet A of the present application.

[0105] The first embodiment of the electromagnetic induction heating sheet A of the present application is as follows: Cooperate Figures 14 to 16 As shown in the first embodiment of the electromagnetic induction heating sheet A of the present application, the electromagnetic induction heating sheet A of the present application adopts a wireless information integrated sheet, which includes a substrate layer A1, a first adhesive layer A4, and a multi-purpose component A2, which can realize electromagnetic induction heating function and information interaction function; wherein the multi-purpose component A2 includes a metal layer A21 and a wireless information chip A22; the metal layer A21 is cooperated on the substrate layer A1 through the first adhesive layer A4, the first adhesive layer A4 is arranged between the metal layer A21 and the substrate layer A1, the metal layer A21 has an antenna A211 and an electromagnetic induction heating part A212 arranged around the antenna A211, the electromagnetic induction heating part A212 is separated from the antenna A211, and the distance between the outside of the antenna A211 and the inside of the electromagnetic induction heating part A212 is 0.1-3mm to ensure the isolation degree of the two. The present application is thus arranged, which can make the metal layer A21 use less material and help to reduce the cost; in addition, the wireless information chip A22 can communicate wirelessly with external devices through the antenna A211 to realize information interaction function, which can facilitate the storage and reading of production, logistics and other information, and facilitate anti-counterfeiting and traceability; and the electromagnetic induction heating part A212 is used to generate heat by electromagnetic induction to bond the sealing layer B with the container bottle mouth, and the electromagnetic induction heating part A212 is arranged around the antenna A211, so that the electromagnetic induction heating part A212 has little shielding effect on the antenna A211, so that the wireless information chip A22 is less disturbed by the electromagnetic induction heating part A212 when performing wireless communication, ensuring the wireless communication performance of the wireless information chip A22, and helping to improve the wireless communication distance of the wireless information chip A22; in addition, the electromagnetic induction heating part A212 is arranged around the antenna A211, so that the electromagnetic induction heating part A212 will only bond the sealing layer B periphery with the container bottle mouth when generating heat by electromagnetic induction, reducing the heating area of the bonding layer 2, avoiding excessive heating of the bonding layer 2 to produce some odor gas, thereby avoiding the odor gas from infiltrating into the contents of the container to make people uncomfortable, and at the same time, the heating area is small and the energy consumption is low.

[0106] In the first embodiment of the electromagnetic induction heating sheet A of the present application, the thickness of the electromagnetic induction heating sheet A can be 27-300µm; the thickness of the multi-purpose component A2 is 6-300µm.

[0107] In the first embodiment of the electromagnetic induction heating sheet A, the antenna A211 comprises two symmetrically arranged antenna bodies A2110, the antenna body A2110 comprises a plurality of co-directional curved antenna strips A2111 and connecting strips A2112 connecting the antenna strips A2111; in this way, the transceiving signal capability of the antenna A211 can be improved. The connecting strips A2112 of the two antenna bodies A2110 are used to connect the wireless information chip A22.

[0108] In the first embodiment of the electromagnetic induction heating sheet A, the first adhesive layer A4 is a composite adhesive, the thickness of the first adhesive layer A4 is 0.5-7 µm, and the first adhesive layer A4 can make the peeling strength between the base layer A1 and the metal layer A21 greater than 4 N / 15 mm.

[0109] In the first embodiment of the electromagnetic induction heating sheet A, the material of the metal layer A21 can be aluminum, copper, gold, silver or tin; the base layer A1 is at least one of a PE layer, a PET layer, a PEN layer, a PC layer, a PI layer and a PP layer, and the thickness of the metal layer A21 is 6-40 µm; the wireless information chip A22 has a unique identification code, and the wireless information chip A22 can be a radio frequency identification near field communication (RFID_NFC) chip, a radio frequency identification high frequency (RFID_HF) chip, a radio frequency identification ultra high frequency (RFID_UHF) chip or a radio frequency identification microwave (RFID_MW) chip.

[0110] In the first embodiment of the electromagnetic induction heating sheet A, the electromagnetic induction heating sheet roll material adopts a wireless information integrated sheet roll material, and the production method of the electromagnetic induction heating sheet roll material comprises the following steps: Step S1: The composite surface of the base layer roll material is compounded with the composite surface of the metal foil roll material through the first adhesive layer A4 to obtain an electromagnetic induction heating sheet blank roll material; Step S2: The metal foil of the electromagnetic induction heating sheet blank roll material is etched to form a metal layer A21, the metal layer A21 has an antenna A211 and an electromagnetic induction heating part A212 surrounding the antenna A211, thereby obtaining an electromagnetic induction heating sheet blank two roll material; Step S3: The metal layer of the electromagnetic induction heating sheet blank two roll material is connected with the antenna A211 of the metal layer A21 of the wireless information chip A22, and the wireless information chip A22 is protected by dispensing glue, thereby obtaining an electromagnetic induction heating sheet roll material; the wireless information chip A22 and the antenna A211 of the metal layer A21 are connected by a bonding machine, and the wireless information chip A22 and the antenna A211 of the metal layer A21 are protected by encapsulation glue A24 after bonding.

[0111] The second embodiment of the electromagnetic induction heating sheet A of the present application: fitting Figure 17 As shown in the drawings, the second embodiment of the electromagnetic induction heating sheet A of the present application differs from the first embodiment of the electromagnetic induction heating sheet A of the present application in that, in the second embodiment of the electromagnetic induction heating sheet A of the present application, the electromagnetic induction heating sheet A of the present application adopts a wireless information integrated sheet, and the multi-purpose component A2 of the wireless information integrated sheet further comprises a battery A23, the battery A23 is electrically connected with the wireless information chip A22, the battery A23 can stably supply power to the wireless information chip A22, and the working stability of the wireless information chip A22 is improved; wherein the battery A23 can supply power to the wireless information chip A22 according to the rules preset by the built-in software or the instructions transmitted by the external reader and writer, so that the wireless information chip A22 works regularly and records the working parameters (such as temperature parameters and position parameters) regularly, thereby facilitating the effective management and control of logistics (such as cold chain logistics).

[0112] In the second embodiment of the electromagnetic induction heating sheet A of the present application, the thickness of the electromagnetic induction heating sheet A can be 40 µm to 2.5 mm; and the thickness of the multi-purpose component A2 is 6 µm to 2.5 mm.

[0113] In the second embodiment of the electromagnetic induction heating sheet A of the present application, the electromagnetic induction heating sheet A roll material adopts a wireless information integrated sheet roll material, and the production method of the electromagnetic induction heating sheet A comprises the following steps: Step S1: The composite surface of the base layer roll material is compounded with the composite surface of the metal foil roll material through the first adhesive layer A4 to obtain an electromagnetic induction heating sheet blank roll material; Step S2: The metal foil of the electromagnetic induction heating sheet blank roll material is etched to form a metal layer A21, the metal layer A21 has an antenna A211 and an electromagnetic induction heating part A212 arranged around the antenna A211, to obtain an electromagnetic induction heating sheet blank two roll material; Step S3: The wireless information chip A22 of the electromagnetic induction heating sheet blank two roll material is connected with the antenna A211 of the metal layer A21, and then the battery A23 is electrically connected with the wireless information chip A22, and the wireless information chip A22 is protected by dispensing glue, thereby obtaining an electromagnetic induction heating sheet roll material; wherein the wireless information chip A22 and the antenna A211 of the metal layer A21 are connected by a bonding machine, and after the wireless information chip A22 and the antenna A211 of the metal layer A21 are bonded, the wireless information chip A22 and the bonding wire connecting the wireless information chip A22 and the antenna A211 are protected by the encapsulation glue A24.

[0114] The third embodiment of the electromagnetic induction heating element A of the present invention: Cooperate Figure 18 As shown, the main difference between the third embodiment of the electromagnetic induction heating element A of the present invention and the first embodiment is that in the third embodiment, the electromagnetic induction heating element A also uses a wireless information integrated sheet. The wireless information integrated sheet further includes a protective layer A3 and a second adhesive layer A5. The protective layer A3 is composited with the base layer A1 and the multi-purpose component A2 through the second adhesive layer A5, and the protective layer A3 completely covers the multi-purpose component A2. The protective layer A3 effectively protects the multi-purpose component A2, preventing damage to the multi-purpose component A2 during the transportation and manufacturing of the electromagnetic induction sealing gasket. The protective layer A3 can be at least one of PE, PET, PEN, PA, PVDC, EVOH, PI, and PP layers, and its thickness can be 12~100µm.

[0115] In a third embodiment of the electromagnetic induction heating element A of the present invention, the second adhesive layer A5 is a composite adhesive, the thickness of the second adhesive layer A5 is 0.5~7µm, and the second adhesive layer A5 makes the peel strength between the protective layer A3 and the multi-purpose component A2 greater than 4N / 15mm.

[0116] In a third embodiment of the electromagnetic induction heating element A of the present invention, the thickness of the electromagnetic induction heating element A may be from 39µm to 2.5mm; the thickness of the multi-purpose component A2 may be from 6 to 300µm.

[0117] In a third embodiment of the electromagnetic induction heating element A of the present invention, the electromagnetic induction heating element A roll is made of wireless information integrated sheet roll, and the production method of the electromagnetic induction heating element A includes the following steps: Step 1: The composite surface of the base layer roll and the composite surface of the metal foil roll are bonded together through the first adhesive layer A4 to obtain a roll of electromagnetic induction heating sheet blank; Step 2: Etch the metal foil roll of the electromagnetic induction heating sheet blank to form a metal layer A21. The metal layer A21 has an antenna A211 and an electromagnetic induction heating part A212 arranged around the antenna A211 to obtain the electromagnetic induction heating sheet blank two rolls. Step three: connect the wireless information chip A22 of the electromagnetic induction heating sheet blank two-roll material with the antenna A211 of the metal layer A21, and protect the wireless information chip A22 by dispensing glue, thereby obtaining the electromagnetic induction heating sheet blank three-roll material; the wireless information chip A22 and the antenna A211 of the metal layer A21 can be connected by bonding machine, and the wireless information chip A22 and the antenna A211 of the metal layer A21 are connected by the encapsulation glue A24 to protect the wireless information chip A22 and the bonding line connecting the wireless information chip A22 and the antenna A211. Step four: composite the composite surface of the protective layer roll material and the electromagnetic induction heating sheet blank three-roll material with the side opposite to the substrate layer A1 through the second adhesive layer A5, thereby obtaining the electromagnetic induction heating sheet roll material.

[0118] The fourth embodiment of the electromagnetic induction heating sheet A of the present application is as follows: Cooperation Figure 19 As shown in the drawings, the fourth embodiment of the electromagnetic induction heating sheet A of the present application is different from the first embodiment of the electromagnetic induction heating sheet A of the present application in that: in the fourth embodiment of the electromagnetic induction heating sheet A of the present application, the electromagnetic induction heating sheet A also adopts a wireless information integrated sheet, the wireless information integrated sheet further comprises a protective layer A3 and a second adhesive layer A5, the protective layer A3 is composite with the substrate layer A1 and the multi-purpose assembly A2 through the second adhesive layer A5, and the protective layer A3 completely covers the multi-purpose assembly A2, the protective layer A3 can effectively protect the multi-purpose assembly A2, so that the electromagnetic induction heating sheet A of the present application will not have the problem of damage to the multi-purpose assembly A2 during transportation and manufacturing of the electromagnetic induction sealing gasket. The protective layer A3 can be at least one of PE layer, PET layer, PEN layer, PA layer, PVDC layer, EVOH layer, PI layer and PP layer, and the thickness of the protective layer A3 can be 12-100µm; the multi-purpose assembly A2 further comprises a battery A23, the battery A23 is electrically connected with the wireless information chip A22, the thickness of the battery A23 can be greater than or less than the thickness of the antenna A211 according to the material of the battery A23, application requirements and the allowable space between the container and the cover, the battery A23 can stably supply power to the wireless information chip A22, and improve the working stability of the wireless information chip A22; wherein the battery A23 can supply power to the wireless information chip A22 according to the rules preset by the built-in software or the instructions transmitted by the external reader, so that the wireless information chip A22 works regularly and records the working parameters (such as temperature parameters and position parameters) regularly, which is convenient for effective management and control of logistics (such as cold chain logistics).

[0119] In the fourth embodiment of the electromagnetic induction heating sheet A of the present application, the thickness of the electromagnetic induction heating sheet A can be 50µm to 2.5mm; the thickness of the multi-purpose assembly A2 is 6µm to 2.5mm.

[0120] In the fourth embodiment of the electromagnetic induction heating sheet A of the present application, the electromagnetic induction heating sheet A roll material adopts a wireless information integrated sheet roll material, and the production method of the electromagnetic induction heating sheet A comprises the following steps: Step one: the composite surface of the base layer roll material is compounded with the composite surface of the metal foil roll material through the first adhesive layer A4, so as to obtain an electromagnetic induction heating sheet blank roll material; Step two: the metal foil of the electromagnetic induction heating sheet blank roll material is etched and processed, so that the metal foil forms a metal layer A21, and the metal layer A21 has an antenna A211 and an electromagnetic induction heating part A212 arranged around the antenna A211, so as to obtain an electromagnetic induction heating sheet blank two roll material; Step three: the wireless information chip A22 of the electromagnetic induction heating sheet blank two roll material is connected with the antenna A211 of the metal layer A21, the battery A23 is electrically connected with the wireless information chip A22, and the wireless information chip A22 is protected by dispensing, so as to obtain an electromagnetic induction heating sheet blank three roll material; wherein the wireless information chip A22 and the antenna A211 of the metal layer A21 can be connected by bonding machine, and after the wireless information chip A22 and the antenna A211 of the metal layer A21 are bonded, the wireless information chip A22 and the bonding wire connecting the wireless information chip A22 and the antenna A211 are protected by the encapsulation glue A24; Step four: the composite surface of the protective layer roll material and the electromagnetic induction heating sheet blank three roll material are compounded with the side opposite to the base layer A1 through the second adhesive layer A5, so as to obtain an electromagnetic induction heating sheet roll material.

[0121] The fifth embodiment of the electromagnetic induction heating sheet A of the present application: Cooperation Figure 20As shown, the fifth embodiment of the electromagnetic induction heating sheet A of the present application is different from the first to fourth embodiments of the electromagnetic induction heating sheet A of the present application in that, in the fifth embodiment of the electromagnetic induction heating sheet A of the present application, the electromagnetic induction heating sheet A also adopts a wireless information integrated sheet, the electromagnetic induction heating part A212 of the metal layer A21 of the wireless information integrated sheet is spaced apart from the antenna A211, the spacing between the electromagnetic induction heating part A212 and the antenna A211 of the metal layer A21 is 0.1mm-3mm, the metal layer A21 further comprises at least one physical connection bridge A213 connecting the antenna A211 and the electromagnetic induction heating part A212, the physical connection bridge A213 can improve the stability of the metal layer A21, the antenna A211, the electromagnetic induction heating part A212 and the physical connection bridge A213 of the metal layer A21 can be integrally provided, the material of the physical connection bridge A213 is aluminum, copper, gold, silver or tin, the length of the physical connection bridge A213 is 0.1mm-3mm, and the width of the physical connection bridge is 0.01mm-5mm. Among them, since the size of the physical connection bridge A213 is very small, it can block most of the heat conduction of the electromagnetic induction heating part A212 to the antenna A211, and only has little damage to the distance of wireless communication.

[0122] It should be noted that in the above five embodiments of the electromagnetic induction heating sheet A, the electromagnetic induction heating sheet A has a circle of antenna peripheral tangent A25, the antenna peripheral tangent A25 is located between the antenna A211 and the electromagnetic induction heating part A212 A211; the antenna peripheral tangent A25 is opposite to the secondary tearing line 101 and each breakpoint of the antenna peripheral tangent A25 is opposite to each breakpoint of the secondary tearing line 101, or the antenna peripheral tangent A25 is opposite to the primary tearing line 102 and each breakpoint of the antenna peripheral tangent A25 is opposite to each breakpoint of the primary tearing line 102; the antenna peripheral tangent A25 is provided to enable the user to pull the pulling part 121 to drive the electromagnetic induction heating sheet A to tear along the antenna peripheral tangent A25. Specifically, the antenna peripheral tangent A25 has a plurality of breakpoints, the part of the electromagnetic induction heating sheet A corresponding to the breakpoint of the antenna peripheral tangent A25 is not cut or partially cut, and the length of the breakpoint is 0.02mm to 0.9mm, the part of the electromagnetic induction heating sheet A corresponding to the part of the antenna peripheral tangent A25 except the breakpoint is completely cut, each breakpoint of the antenna peripheral tangent A25 is opposite to each breakpoint of the secondary tearing line 101 or each breakpoint of the primary tearing line 102, which can ensure the structural stability of the electromagnetic induction heating sheet A, the antenna peripheral tangent A25 can be cut by a continuous arrangement of a cutting knife (i.e. cut by a cutting knife once), the cutting knife has an integral blade corresponding to the antenna peripheral tangent A25.

[0123] The electromagnetic induction heating sheet A is not limited to the above-described four embodiments of the electromagnetic induction heating sheet A; the electromagnetic induction heating sheet A can also use an aluminum foil commonly used at present, so that the electromagnetic induction heating sheet A has only the electromagnetic induction heating function.

[0124] The above-described embodiments and drawings are not intended to limit the product form and style of the present application, and any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the scope of the patent of the present application.

Claims

1. A pull-out sealing gasket, characterized in that: It includes a functional layer and an adhesive layer; one of the functional layer and the adhesive layer is provided with an electromagnetic induction heating element, and the adhesive layer has an adhesive sealing layer; The bottom surface of the functional layer and the top surface of the adhesive layer are strongly bonded together by an adhesive, and one of the bottom surface of the functional layer and the top surface of the adhesive layer is directly coated with a release block made of release coating. The functional layer has a hollow area, a first tear area and a re-sealing area. The first tear area has a connected lifting part and a lifting neck. The hollow area is adjacent to the lifting part. The re-sealing area surrounds the hollow area and the first tear area. The edge of the first tear area has a first tear line.

2. The pull-out sealing gasket as described in claim 1, characterized in that: The functional layer also includes a secondary tearing area, where the primary tearing area and the secondary tearing area are separated by a primary tearing line and the primary tearing line is connected to at least one side of the lifting part; the re-sealing area surrounds the hollow area, the primary tearing area and the secondary tearing area; the re-sealing area and the secondary tearing area are separated by a secondary tearing line.

3. A pull-up sealing gasket as described in claim 2, characterized in that: The secondary tear line is completely separated from or partially overlaps with the primary tear line.

4. A pull-up sealing gasket as described in claim 1 or 2, characterized in that: The two ends of the first tear line are respectively connected to the two sides of the lifting part.

5. A pull-up sealing gasket as described in claim 1 or 2, characterized in that: One end of the first tear line is connected to one side of the lifting part, and the other end of the first tear line intersects with the main body of the first tear line. The first tear line surrounds the lifting part.

6. A pull-up sealing gasket as described in claim 1, characterized in that: The adhesive provides a peel strength greater than 12 N / 15 mm between the bottom surface of the functional layer and the top surface of the adhesive layer.

7. A pull-up sealing gasket as described in claim 6, characterized in that: The adhesive is a dry composite adhesive or a hot melt adhesive, and the hot melt adhesive is made of one of the following materials: PE, PP, EMAC, EEA, EAA, EMAA, and EMMA.

8. A pull-up sealing gasket as described in claim 1, characterized in that: The functional layer comprises a face mask and a connecting film sequentially laminated from top to bottom; the face mask is at least one of PI layer, PEN layer, PET layer, PE layer, PA layer and PP layer; the connecting film is at least one of PET layer, EPE layer, EPP layer, PP layer, PA layer and PE layer.

9. A pull-up sealing gasket as described in claim 7 or 8, characterized in that: The functional layer also includes a composite film located between the face mask and the connecting film. The composite film is at least one of the following: EPP layer, EPE layer, PEN layer, PET layer, PP layer, PA layer, and PE layer.

10. A pull-up sealing gasket as described in claim 7, characterized in that: The adhesive layer comprises the electromagnetic induction heating element and the sealing film, which are sequentially laminated from top to bottom; the bottom surface of the bonding film is directly coated with the release block, and the coating area of ​​the release block is larger than the area where the lifting part is located.

11. A pull-up sealing gasket as described in claim 7, characterized in that: The adhesive layer comprises the electromagnetic induction heating element and the sealing film, which are sequentially laminated from top to bottom; the top surface of the electromagnetic induction heating element is directly coated with the release block, and the coating area of ​​the release block is larger than the areas where the lifting part and the hollowed-out area are located.

12. A pull-up sealing gasket as described in claim 1, characterized in that: The functional layer comprises, from top to bottom, a face mask, an electromagnetic induction heating element, and a connecting film; the face mask is at least one of a PI layer, a PEN layer, a PET layer, a PE layer, a PA layer, and a PP layer; the connecting film is at least one of a PET layer, an EPE layer, an EPP layer, a PP layer, a PA layer, and a PE layer.

13. A pull-up sealing gasket as described in claim 1, characterized in that: The release block is directly coated on the bottom surface of the connecting film, and the coating area of ​​the release block is larger than the area where the lifting part is located.

14. A pull-up sealing gasket as described in claim 2, characterized in that: The first tear line and / or the second tear line are cutting lines with multiple break points. The functional layer portion corresponding to the break point of the cutting line is not cut or is partially cut in the vertical direction. The functional layer portion corresponding to the part of the cutting line other than the break point is completely cut off.

15. A pull-up sealing gasket as described in claim 1, characterized in that: The electromagnetic induction heating element is made of aluminum foil.

16. A pull-up sealing gasket as described in claim 1, characterized in that: The electromagnetic induction heating element is a wireless information integrated chip, which includes a substrate layer, a first adhesive layer, and a multi-purpose component. The multi-purpose component includes a metal layer and a wireless information chip. The metal layer is attached to the substrate layer through the first adhesive layer, which is sandwiched between the metal layer and the substrate layer. The metal layer has an antenna and an electromagnetic induction heating element arranged around the antenna. The antenna is electrically connected to the wireless information chip.

17. A pull-up sealing gasket as described in claim 16, characterized in that: There is a gap between the electromagnetic induction heating element and the antenna.

18. A pull-up sealing gasket as described in claim 17, characterized in that: The electromagnetic induction heating part of the metal layer is separated from the antenna by a gap of 0.1mm to 3mm.

19. A pull-up sealing gasket as described in claim 17, characterized in that: The electromagnetic induction heating element and the antenna are completely separated.

20. A pull-up sealing gasket as described in claim 17, characterized in that: The metal layer also includes at least one physical connection bridge connecting the antenna and the electromagnetic induction heating element.

21. A pull-out sealing gasket as described in any one of claims 17 to 20, characterized in that: The wireless information integration chip also includes a protective layer and a second adhesive layer. The protective layer is combined with the base layer and the multi-purpose component through the second adhesive layer, and the protective layer completely covers the multi-purpose component.

22. A pull-out sealing gasket as described in any one of claims 17 to 20, characterized in that: The electromagnetic induction heating element has a perimeter tangent line with multiple breakpoints around the antenna. The portion of the electromagnetic induction heating element corresponding to the breakpoints of the perimeter tangent line is either not cut or partially cut, while the portion of the electromagnetic induction heating element corresponding to the portion of the perimeter tangent line other than the breakpoints is completely cut off. The perimeter tangent line is located between the antenna and the electromagnetic induction heating element. The perimeter tangent line is opposite to the secondary tear line, and each breakpoint of the perimeter tangent line is opposite to each breakpoint of the secondary tear line, or the perimeter tangent line is opposite to the primary tear line, and each breakpoint of the perimeter tangent line is opposite to each breakpoint of the primary tear line.

23. A pull-up sealing gasket as described in claim 1, characterized in that: The release coating is wax, varnish, or silicone oil.

24. A pull-up sealing gasket as described in claim 1, characterized in that: The sealing layer is a hot melt adhesive; the hot melt adhesive is made of one of the following materials: PE, PP, EMAC, EMAA, EEA, EAA, EBA, and EMMA. Alternatively, the sealing layer includes a sealing film and an adhesive; the sealing film is at least one of PE film, PP film, PA film, PVDC film, EVOH film and PET film; the adhesive is disposed between the sealing film and the electromagnetic induction heating layer.

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