Pull petal type sealing gasket

Abstract

The invention discloses a petal-pulling type sealing gasket which comprises an upper layer, a connecting layer and an adhesive sealing composite layer which are sequentially compounded from top to bottom. The upper layer comprises a surface film; the adhesive sealing composite layer comprises an electromagnetic induction heating layer and an adhesive sealing layer which are sequentially compounded from top to bottom; the connecting layer comprises a connecting adhesive and a petal pulling layer; the connecting layer is used for compounding the upper layer and the adhesive sealing composite layer through a connecting adhesive, and an unbonded area is formed between the upper layer and the adhesive sealing composite layer; the flap pulling layer is arranged in the non-bonding area, and the flap pulling layer is compounded with the upper layer through a composite adhesive and / or the flap pulling layer is compounded with the bonding and sealing composite layer through an adhesive. The door has the advantage of being easy to open.

Description

Technical Field

[0001] The invention relates to the field of sealing gaskets, in particular to a flap-type sealing gasket. Background Art

[0002] In order to prevent the contents in packaging containers (such as beverage cans and medicine cans) from leaking out and being affected by the external environment and deteriorating, a sealing gasket is used to seal the container mouth of the packaging container. By using the sealing gasket to tightly combine with the container mouth, the effect of preventing the contents from leaking out and sealing and preserving the contents can be achieved.

[0003] However, the design of conventional sealing gaskets is mainly based on sealing performance, but not on ease of tearing. In this case, the aluminum foil or cardboard of the sealing gasket that closes the container mouth is not easy to open by pressing with fingers, and cutting with a knife or poking with an awl is both troublesome and dangerous, causing inconvenience to users.

[0004] In view of the above problems, it is necessary to study a pull-flap sealing gasket, which has the advantage of being easy to open. Summary of the invention

[0005] The object of the present invention is to provide a pull-flap type sealing gasket which has the advantage of being easy to open.

[0006] In order to achieve the above object, the solution of the present invention is: A flap-type sealing gasket comprises an upper layer, a connecting layer and a sealing composite layer which are compounded in sequence from top to bottom; the upper layer comprises a surface film; the sealing composite layer comprises an electromagnetic induction heating layer and a sealing layer which are compounded in sequence from top to bottom; the connecting layer comprises a bonding adhesive and a flap-type sealing gasket; the bonding layer compounds the upper layer with the sealing composite layer through the bonding adhesive, and forms an unbonded area between the upper layer and the sealing composite layer; the flap-type sealing gasket is arranged in the unbonded area, and the flap-type sealing gasket is compounded with the upper layer through the composite adhesive and / or the flap-type sealing gasket is compounded with the sealing composite layer through the bonding adhesive.

[0007] The flap layer is compounded with the upper layer by a composite adhesive, a gap area is formed between the flap layer and the adhesive composite layer, and the bonding adhesive makes the peel strength between the upper layer and the adhesive composite layer greater than or equal to 17.8N / 15mm; the flap layer adopts a single-piece flap film, and the single-piece flap film includes at least one of paper, PET film, PP film, PA film, PEN film and PI film.

[0008] The flap layer is compounded with the sealing composite layer by bonding adhesive, a gap area is formed between the flap layer and the upper layer, and the bonding adhesive makes the peel strength between the upper layer and the sealing composite layer greater than or equal to 17.8N / 15mm; the flap layer adopts a single-piece flap film, and the single-piece flap film includes at least one of paper, PET film, PP film, PA film, PEN film and PI film.

[0009] The flap layer adopts a folding flap film, which includes a first upper folding flap and a first lower folding flap. The first upper folding flap is composited with the upper layer by a composite adhesive, and the first lower folding flap is composited with the sealing composite layer by a bonding adhesive. A gap area is formed between the first upper folding flap and the first lower folding flap; the first upper folding flap and the first lower folding flap both include at least one of PA film, PP film, PET film, PEN film and PI film, and the cross-sectional width of the first upper folding flap is less than or equal to the cross-sectional width of the first lower folding flap.

[0010] The flap layer is compounded with the upper layer by a composite adhesive, a gap area is formed between the flap layer and the adhesive composite layer, and the bonding adhesive makes the peel strength between the upper layer and the adhesive composite layer greater than or equal to 17.8N / 15mm; the flap layer adopts a spliced ​​flap film, the spliced ​​flap film includes a first flap film and a second flap film, and a gap area is formed between the first flap film and the second flap film; the first flap film includes at least one of PP film, PET film, PA film, PEN film and PI film, and the second flap film includes at least one of paper, PP film, PET film, PA film, PEN film and PI film.

[0011] The flap layer adopts a folded and spliced ​​flap film, which includes a second upper folded flap and a second lower folded flap. The second upper folded flap is composited with the upper layer by a composite adhesive, and the second lower folded flap is composited with the adhesive and sealing composite layer by an adhesive adhesive, and a gap area is formed between the second upper folded flap and the second lower folded flap; the second upper folded flap includes a first pull flap and a second pull flap, and a gap area is formed between the first pull flap and the second pull flap, and the first pull flap and the second lower folded pull flap of the second upper folded flap both include at least one of PA film, PP film, PET film, PEN film and PI film; the second pull flap of the second upper folded flap includes at least one of paper, PA film, PP film, PET film, PEN film and PI film.

[0012] The cross-sectional width of the flap layer is greater than or equal to one sixth of the cross-sectional width of the flap-type sealing gasket, and the cross-sectional width of the flap layer is less than or equal to five sixths of the cross-sectional width of the flap-type sealing gasket.

[0013] The adhesive sealing composite layer further comprises a connecting film; the connecting film is arranged on the uppermost layer of the adhesive sealing composite layer, and the connecting film comprises at least one of a PE film, a PP film, a PA film, an EPP film and an EPE film.

[0014] The upper layer also includes a first connecting film, which is arranged at the bottom layer of the upper layer; the first connecting film includes at least one of a PE film, a PP film, a PA film, an EMMA film and an EMAC film; the adhesive sealing composite layer also includes a second connecting film, which is arranged at the top layer of the adhesive sealing composite layer, and the second connecting film includes at least one of a PE film, a PP film, a PA film, an EPP film and an EPE film.

[0015] The sealing composite layer further comprises a composite film, which is arranged above the electromagnetic induction heating layer, and comprises at least one of a PP film, a PE film, a PEN film, a PET film and a PA film.

[0016] The connecting adhesive, bonding adhesive and composite adhesive are dry composite adhesive or hot-melt laminating adhesive, and the material of the hot-melt laminating adhesive is one of PE, PP, EMAA, EAA, EEA, EMAC and EMMA.

[0017] The surface film includes at least one of a PEN film, a PI film, a PET film, a PE film, a PP film and a PA film.

[0018] The sealing layer is a hot melt adhesive, and the material of the hot melt adhesive is one of EVA, PIB, EBA, EAA, EMAA, EMAC, polyacrylate and acrylic copolymer.

[0019] The sealing layer includes a sealing film and an adhesive, the sealing film includes at least one of PE film, PP film, PA film, PVDC film, EVOH film and PET film, and the adhesive is located between the sealing film and the electromagnetic induction heating layer.

[0020] The electromagnetic induction heating layer adopts aluminum foil.

[0021] The electromagnetic induction heating layer adopts a wireless information integrated sheet; the wireless information integrated sheet includes a base film, an information and heating layer and a first adhesive layer; the information and heating layer includes an information area and an electromagnetic induction heating ring; the information area has an antenna and a chip that are connected to each other, the electromagnetic induction heating ring surrounds the information area, and the first adhesive layer is located between the base film and the information and heating layer.

[0022] The wireless information integrated sheet also includes a protective layer and a second adhesive layer. The protective layer is located on the side of the information and heating layer away from the base film, and the second adhesive layer is located between the information and heating layer and the protective layer.

[0023] There is a gap between the electromagnetic induction heating ring and the information area.

[0024] The interval between the electromagnetic induction heating ring and the information area is 0.1mm to 3mm.

[0025] There is a full space between the electromagnetic induction heating ring and the information area.

[0026] The information and heating layer also includes at least one physical connection bridge, which connects the information area and the electromagnetic induction heating ring.

[0027] After adopting the above scheme, the pull-flap sealing gasket of the present invention is provided with a pull-flap layer, and the pull-flap layer forms an unbonded area between the upper layer and the adhesive composite layer, so that the user can easily peel off the pull-flap layer of the pull-flap sealing gasket of the present invention, and easily tear open the pull-flap sealing gasket of the present invention by applying force on the pull-flap layer and the upper layer corresponding to the pull-flap layer, thereby having the advantage of being easy to open. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of a flap-type sealing gasket according to the first embodiment of the present invention.

[0029] Figure 2 Schematic diagram of the use of the flap-type sealing gasket according to the first embodiment of the present invention.

[0030] Figure 3 It is a schematic structural diagram of a flap-type sealing gasket according to the second embodiment of the present invention.

[0031] Figure 4 It is a schematic structural diagram of a flap-type sealing gasket according to the third embodiment of the present invention.

[0032] Figure 5 It is a schematic structural diagram of a flap-type sealing gasket according to a fourth embodiment of the present invention.

[0033] Figure 6 Schematic diagram of the use of the flap-type sealing gasket of the fourth embodiment of the present invention.

[0034] Figure 7 It is a schematic structural diagram of a flap-type sealing gasket according to a fifth embodiment of the present invention.

[0035] Figure 8 Schematic diagram of the use of the flap-type sealing gasket of the fifth embodiment of the present invention.

[0036] Fig. 9 Schematic diagram of the structure of the flap-type sealing gasket of the sixth embodiment of the present invention.

[0037] Fig.10 Schematic diagram of the use of the flap-type sealing gasket of the sixth embodiment of the present invention.

[0038] Fig.11 Schematic diagram of the structure of the flap-type sealing gasket of the seventh embodiment of the present invention.

[0039] Fig.12 Schematic diagram of the structure of the flap-type sealing gasket of the eighth embodiment of the present invention.

[0040] Fig.13 It is a schematic structural diagram of a flap-type sealing gasket according to a ninth embodiment of the present invention.

[0041] Fig.14 It is a cross-sectional schematic diagram of the first embodiment of the wireless information integrated chip of the present invention.

[0042] Fig.15 This is a plan view of the information and heating layer of the first embodiment of the wireless information integrated sheet of the present invention.

[0043] Fig.16 This is a plan view of the information area of ​​the first embodiment of the wireless information integrated sheet of the present invention.

[0044] Fig.17 It is a cross-sectional schematic diagram of a second embodiment of the wireless information integrated chip of the present invention.

[0045] Fig.18 This is a plan view of the information and heating layer of the third embodiment of the wireless information integrated sheet of the present invention.

[0046] Fig.19 This is a schematic plan view of the information area of ​​the third embodiment of the wireless information integrated chip of the present invention.

[0047] Description of labels: Upper layer 100, surface film 110, first connecting film 120, The connecting layer 200, the connecting adhesive 210, the composite adhesive 220, the single-piece pull-valve film 230, the folded pull-valve film 231, the first upper folded pull-valve film 231A, the first lower folded pull-valve film 231B, the spliced ​​pull-valve film 232, the first pull-valve film 232A, the second pull-valve film 232B, the folded spliced ​​pull-valve film 233, the second upper folded pull-valve 233A, the second lower folded pull-valve 233B, the bonding adhesive 240, the adhesive sealing composite layer 300, the electromagnetic induction heating layer 310, Sealing layer 320, sealing film 321, adhesive 322, connecting film 330, protective film 340, second connecting film 350, thickening layer 360, composite film 370, Adhesive a, Gap area GA, The gap area SA, Base film 1w, first adhesive layer 2w, information and heating layer 3w, information area 31w, chip 311w, antenna 312w, electromagnetic induction heating ring 32w, physical connection bridge 33w, second adhesive layer 4w, protective layer 5w, spacer ITV. DETAILED DESCRIPTION

[0048] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0049] Embodiment 1: Cooperate Figure 1 and Figure 2 As shown, in embodiment 1 of the present invention, the flap-type sealing gasket of the present invention includes an upper layer 100, a connecting layer 200 and a sealing composite layer 300 which are compounded in sequence from top to bottom, wherein the upper layer 100 includes a surface film 110, the connecting layer 200 includes a connecting adhesive 210 and a flap-type sealing layer, and the sealing composite layer 300 includes an electromagnetic induction heating layer 310 and a sealing layer 320 which are compounded in sequence from top to bottom.

[0050] In the first embodiment of the present invention, the upper layer 100 is disposed on the uppermost layer of the flap-type sealing gasket of the present invention. Figure 1 As shown, the upper layer 100 includes a surface film 110, and the surface film 110 is used as the uppermost layer (i.e., the surface layer) of the flap-type sealing gasket of the present invention. The upper surface and / or the lower surface of the surface film 110 can be a printing surface, which can be used to print different patterns. The surface film 110 can include at least one of a PEN film, a PI film, a PET film, a PE film, a PP film, and a PA film. The thickness of the surface film 110 is preferably 12 to 150µm. Within this range, the tensile strength is greater, the surface is flat, and the glossiness is better; in addition, when the flap-type sealing gasket of the present invention is subjected to heat conduction below, the surface film 110 can be prevented from being bonded to other external elements (such as bottle caps, etc.).

[0051] In the first embodiment of the present invention, the bonding layer 200 is disposed between the upper layer 100 and the adhesive composite layer 300. Figure 1 As shown, the bonding layer 200 includes a bonding adhesive 210 and a flap layer, and the bonding layer 200 bonds the upper layer 100 with the bonding composite layer 300 through the bonding adhesive 210, and forms an unbonded area between the upper layer 100 and the bonding composite layer 300. The bonding adhesive 210 can make the peel strength between the upper layer 100 and the bonding composite layer 300 greater than or equal to 17.8N / 15mm, thereby enabling stable bonding. The bonding adhesive 210 can be a hot melt laminating adhesive or a dry composite adhesive, but is not limited thereto.

[0052] In the first embodiment of the present invention, the flap layer is arranged in the above-mentioned unbonded area, and the flap layer is compounded with the upper layer 100 through the composite adhesive 220. The composite adhesive 220 can make the peel strength between the upper layer 100 and the flap layer greater than or equal to 2N / 15mm, thereby enabling a stable compounding. The composite adhesive 220 can be a hot melt laminating adhesive or a dry composite adhesive, but is not limited thereto. A gap area SA is formed between the flap layer and the adhesive composite layer 300 to ensure that the flap layer and the adhesive composite layer 300 are separated from each other (i.e., not compounded with each other), so that the user can easily peel off the flap sealing gasket of the present invention by hand without the aid of external objects.

[0053] In the first embodiment of the present invention, Figure 1 As shown, the flap layer can be a single-piece flap film 230, which includes at least one of paper, PET film, PP film, PA film, PEN film and PI film, but is not limited thereto. The thickness of the single-piece flap film 230 is preferably 12 to 50 μm.

[0054] In the first embodiment of the present invention, the adhesive sealing composite layer 300 is arranged at the bottom layer of the flap-type sealing gasket of the present invention. Figure 1 As shown, the sealing composite layer 300 includes an electromagnetic induction heating layer 310 and a sealing layer 320 which are sequentially composited from top to bottom. The electromagnetic induction heating layer 310 can be made of aluminum foil, which is an existing structure in the conventional sealing gasket. The thickness of the aluminum foil is preferably 10 to 40 μm, so as to enhance the barrier function against moisture and oxygen, and produce the effect of preventing the leakage of the contents and sealing and preserving the contents. The electromagnetic induction heating layer 310 can also use the following wireless information integrated sheet to replace the aluminum foil. The wireless information integrated sheet can increase the function of wireless information transmission, reduce the waste of aluminum foil materials, reduce energy consumption, avoid the waste of manpower, avoid the interference of metal and liquid, improve production efficiency, have good communication performance and greatly improve the communication distance, which greatly improves the automation, digitization and intelligent development of factories, warehouses, logistics, stores, and unmanned cashier management. The thickness of the wireless information integrated sheet is preferably 27 μm to 2.5 mm.

[0055] In the first embodiment of the present invention, the adhesive layer 320 is used to seal the container mouth. The adhesive layer 320 can be a hot melt adhesive, and the material of the hot melt adhesive can be one of EVA, PIB, EBA, EAA, EMAC, polyacrylate, acrylic copolymer and EMAA, but is not limited thereto. The thickness of the hot melt adhesive is preferably 4 to 100µm. The hot melt adhesive can achieve a continuous sealing effect even when the contents of the packaging container contain water, and can also achieve a continuous sealing effect even when the contents of the packaging container contain chili, garlic, fermented bean curd, honey, and spicy additives.

[0056] Embodiment 2: Cooperate Figure 3 As shown, the difference between the second embodiment of the present invention and the first embodiment lies in the position setting of the flap layer.

[0057] In the second embodiment of the present invention, the flap layer is arranged in the above-mentioned unbonded area, and the flap layer is compounded with the sealing composite layer 300 through the adhesive 240. The adhesive 240 can make the peel strength between the sealing composite layer 300 and the flap layer greater than or equal to 2N / 15mm, thereby enabling stable compounding. The adhesive 240 can be a hot melt laminating adhesive or a dry composite adhesive, but is not limited thereto. A gap area SA is formed between the flap layer and the upper layer 100 to ensure that the flap layer and the upper layer 100 are separated from each other (i.e., not compounded with each other), so that the user can easily peel off the flap sealing gasket of the present invention by hand without the help of external objects.

[0058] In the second embodiment of the present invention, the flap layer can be a single flap film 230, which includes at least one of paper, PET film, PP film, PA film, PEN film and PI film, but is not limited thereto. The thickness of the single flap film 230 is preferably 12 to 50 μm.

[0059] Embodiment three: Cooperate Figure 4 As shown, the difference between the third embodiment of the present invention and the first embodiment lies in the structure of the connecting layer 200 .

[0060] Specifically, in the third embodiment of the present invention, the connecting layer 200 includes a connecting adhesive 210 and a flap layer, and the connecting layer 200 composites the upper layer 100 with the sealing composite layer 300 through the connecting adhesive 210, and forms an unbonded area between the upper layer 100 and the sealing composite layer 300. The flap layer is arranged in the above-mentioned unbonded area, and the flap layer is composited with the upper layer 100 through the composite adhesive 220, and the composite adhesive 220 and the connecting adhesive 210 are the same adhesive, so that the peel strength between the upper layer 100 and the flap layer and the sealing composite layer 300 is greater than or equal to 17.8N / 15mm, thereby enabling stable composite. It should be noted that since the composite adhesive 220 and the connecting adhesive 210 use the same adhesive, the connecting adhesive 210 and the composite adhesive 220 can be applied at the same time as the same adhesive.

[0061] In the third embodiment of the present invention, the bonding adhesive 210 and the composite adhesive 220 are made of hot melt laminating adhesive, and the material of the hot melt laminating adhesive is one of PE, PP, EMAA, EAA, EEA, EMAC and EMMA, and the thickness of the hot melt laminating adhesive is preferably 4 to 60 μm. The hot melt laminating adhesive can be the laminating adhesive used in laminating, but is not limited thereto.

[0062] In the third embodiment of the present invention, a gap area SA is formed between the flap layer and the adhesive composite layer 300 to ensure that the flap layer and the adhesive composite layer 300 are separated from each other. The flap layer can be a single-piece flap film 230, but is not limited thereto.

[0063] Embodiment 4: Cooperate Figure 5 and Figure 6 As shown, the difference between the fourth embodiment of the present invention and the first embodiment lies in the structure of the connecting layer 200 .

[0064] Specifically, in embodiment four of the present invention, the connecting layer 200 includes a connecting adhesive 210 and a peel layer, and the connecting layer 200 composites the upper layer 100 with the sealing composite layer 300 through the connecting adhesive 210, and forms an unbonded area between the upper layer 100 and the sealing composite layer 300. The connecting adhesive 210 may be a dry composite adhesive or a hot melt laminating adhesive, but is not limited thereto. The connecting adhesive 210 makes the peel strength between the upper layer 100 and the sealing composite layer 300 greater than or equal to 4N / 15mm. The flap-pulling layer is arranged in the above-mentioned unbonded area, and the flap-pulling layer is compounded with the upper layer 100 through the composite adhesive 220. The composite adhesive 220 can be a dry composite adhesive or a hot-melt laminating adhesive, but is not limited to this. The composite adhesive 220 can make the peel strength between the upper layer 100 and the flap-pulling layer greater than or equal to 2N / 15mm; the flap-pulling layer is also compounded with the sealing composite layer 300 through the bonding adhesive 240. The bonding adhesive 240 can make the peel strength between the sealing composite layer 300 and the flap-pulling layer greater than or equal to 2N / 15mm; the bonding adhesive 240 can be a dry composite adhesive or a hot-melt laminating adhesive, but is not limited to this.

[0065] In the fourth embodiment of the present invention, the flap layer adopts a folded flap film 231, which may include a first upper folded flap film 231A and a first lower folded flap film 231B, and a gap area SA is formed between the first upper folded flap film 231A and the first lower folded flap film 231B. The first upper folded flap film 231A and the first lower folded flap film 231B may both include at least one of a PA film, a PP film, a PET film, a PEN film and a PI film, but are not limited thereto; the thickness of the first upper folded flap film 231A and the first lower folded flap film 231B may both be 12 to 24 µm.

[0066] In the fourth embodiment of the present invention, the first upper folded flap film 231A of the folded flap film 231 is compounded with the surface film 110 in the upper layer 100 by the compound adhesive 220, and the compound adhesive 220 makes the peel strength between the upper layer 100 and the first upper folded flap film 231A greater than or equal to 2N / 15mm. The first lower folded flap film 231B of the folded flap film 231 is compounded with the electromagnetic induction heating layer 310 in the adhesive-sealed composite layer 300 by the adhesive adhesive 240, and the adhesive adhesive 240 makes the peel strength between the adhesive-sealed composite layer 300 and the first lower folded flap film 231B greater than or equal to 2N / 15mm.

[0067] As for the conventional sealing gasket, the peeling strength required between the flap layer and the layer below is high in some cases, which makes it difficult for the conventional sealing gasket to combine the flap layer with the layer below. However, the flap-type sealing gasket of the present invention forms a gap area SA between the first upper folded flap film 231A and the first lower folded flap film 231B of the folded flap film 231, so as to ensure that the first upper folded flap film 231A and the first lower folded flap film 231B are separated from each other (i.e., not combined with each other), so that the user can easily open the flap-type sealing gasket of the present invention by hand without the help of external objects.

[0068] In the fourth embodiment of the present invention, the cross-sectional width W3 of the first upper folded pull-flap film 231A may be less than or equal to the cross-sectional width W4 of the first lower folded pull-flap film 231B. When the cross-sectional width W3 of the first upper folded pull-flap film 231A is less than the cross-sectional width W4 of the first lower folded pull-flap film 231B, a little space will appear at the outermost edge of the first upper folded pull-flap film 231A, and air will exist in this space. In this case, even if the adhesive sealing composite layer 300 is very thin, the user can easily open the pull-flap film by hand, so that the user can easily uncover the pull-flap sealing gasket of the present invention by hand without the help of external objects.

[0069] Embodiment five: Cooperate Figure 7 and Figure 8 As shown, the difference between the fifth embodiment of the present invention and the first embodiment lies in the structure of the connecting layer 200 .

[0070] Specifically, in the fifth embodiment of the present invention, the connecting layer 200 includes a connecting adhesive 210 and a flap layer, and the connecting layer 200 composites the upper layer 100 with the adhesive composite layer 300 through the connecting adhesive 210, and forms an unbonded area between the upper layer 100 and the adhesive composite layer 300. The connecting adhesive 210 can be a dry composite adhesive or a hot melt laminating adhesive, but is not limited thereto. The connecting adhesive 210 makes the peel strength between the upper layer 100 and the adhesive composite layer 300 greater than or equal to 17.8N / 15mm. The flap layer is arranged in the above-mentioned unbonded area, and the flap layer is composited with the upper layer 100 through a composite adhesive 220. The composite adhesive 220 can be a dry composite adhesive or a hot melt laminating adhesive, but is not limited thereto. The composite adhesive 220 can make the peel strength between the upper layer 100 and the flap layer greater than or equal to 2N / 15mm.

[0071] In the fifth embodiment of the present invention, a gap area SA is also formed between the flap layer and the adhesive composite layer 300, so as to ensure that the flap layer and the adhesive composite layer 300 are separated from each other (i.e., not composited with each other), so that the user can easily peel off the flap sealing gasket of the present invention by hand without the aid of external objects.

[0072] In the fifth embodiment of the present invention, the flap layer adopts a spliced ​​flap film 232; the thickness of the spliced ​​flap film 232 is preferably 12 to 50 μm; the spliced ​​flap film 232 may include a first flap film 232A and a second flap film 232B, and a gap area GA is formed between the first flap film 232A and the second flap film 232B. The first flap film 232A may include at least one of PP film, PET film, PA film, PEN film and PI film, and the second flap film 232B may include at least one of paper, PP film, PET film, PA film, PEN film and PI film. Among them, the space (i.e., the gap area GA) reserved by the spliced ​​flap film 232 at the splicing position can expand and reserve some space at the splicing position (i.e., the gap area GA) when subjected to the interaction of thermal expansion and cover edge extrusion during electromagnetic induction sealing, so that the user can more easily open the flap layer.

[0073] Embodiment six: Cooperate Fig. 9 and Fig.10 As shown, the difference between the sixth embodiment of the present invention and the first embodiment lies in the structure of the connecting layer 200 .

[0074] Specifically, in embodiment six of the present invention, the connecting layer 200 includes a connecting adhesive 210 and a peeling layer, and the connecting layer 200 composites the upper layer 100 and the sealing composite layer 300 through the connecting adhesive 210, and forms an unbonded area between the upper layer 100 and the sealing composite layer 300. The connecting adhesive 210 may be a dry composite adhesive or a hot melt laminating adhesive, but is not limited thereto. The connecting adhesive 210 may make the peel strength between the upper layer 100 and the sealing composite layer 300 greater than or equal to 4N / 15mm. The flap-pulling layer is arranged in the above-mentioned unbonded area, and the flap-pulling layer is compounded with the upper layer 100 through the composite adhesive 220. The composite adhesive 220 can be a dry composite adhesive or a hot-melt laminating adhesive, but is not limited to this. The composite adhesive 220 can make the peel strength between the upper layer 100 and the flap-pulling layer greater than or equal to 2N / 15mm; the flap-pulling layer is also compounded with the sealing composite layer 300 through the bonding adhesive 240. The bonding adhesive 240 can make the peel strength between the sealing composite layer 300 and the flap-pulling layer greater than or equal to 2N / 15mm; the bonding adhesive 240 can be a dry composite adhesive or a hot-melt laminating adhesive, but is not limited to this.

[0075] In the sixth embodiment of the present invention, the flap layer adopts a folded spliced ​​flap film 233, which may include a second upper folded flap film 233A and a second lower folded flap film 233B, and a gap area SA is formed between the second upper folded flap film 233A and the second lower folded flap film 233B; the second upper folded flap film 233A may include a first flap film 232A and a second flap film 232B, and a gap area GA is formed between the first flap film 232A and the second flap film 232B. The first flap film 232A and the second lower folded flap film 233B of the second upper folded flap 233A may both include at least one of a PA film, a PP film, a PET film, a PEN film and a PI film, but are not limited thereto. The thickness of the first flap film 232A and the second lower folded flap film 233B of the second upper folded flap 233A may both be 12 to 24 µm. The second pull-flap film 232B of the second upper fold-flap film 233A may include at least one of paper, PA film, PP film, PET film, PEN film and PI film, and the thickness of the second pull-flap film 232B of the second upper fold-flap film 233A is preferably 12 to 50 µm.

[0076] In the sixth embodiment of the present invention, the flap-type sealing gasket of the present invention forms a gap area SA between the second upper folded flap film 233A and the second lower folded flap film 233B, so as to ensure that the second upper folded flap film 233A and the second lower folded flap film 233B are separated from each other (i.e., not combined with each other), so that the user can easily open the flap-type sealing gasket of the present invention by hand without the help of external objects. In addition, when subjected to the interaction of thermal expansion and cover edge extrusion during electromagnetic induction sealing, the gap area GA formed between the first flap film 232A and the second flap film 232B can retain some space, so that the user can more easily open the flap layer. In addition, the first flap film 232A and the second flap film 232B of the folded spliced ​​flap film 233 can be selected from films with low elongation at break and high fracture strength (made of PA or PP or PET or PEN or PI), so that the insufficient peeling strength between the flap layer and the layer below can be greatly strengthened by the high fracture strength of the film.

[0077] In the sixth embodiment of the present invention, the second upper folded flap film 233A of the folded spliced ​​flap film 233 is compounded with the surface film 110 in the upper layer 100 through the composite adhesive 220, and the composite adhesive 220 makes the peel strength between the upper layer 100 and the flap layer greater than or equal to 2N / 15mm. The second lower folded flap film 233B of the folded spliced ​​flap film 233 in the flap layer is compounded with the electromagnetic induction heating layer 310 in the adhesive-sealed composite layer 300 through the adhesive adhesive 240, and the adhesive adhesive 240 makes the peel strength between the adhesive-sealed composite layer 300 and the flap layer greater than or equal to 2N / 15mm.

[0078] Embodiment seven: Cooperate Fig.11 As shown, the difference between the seventh embodiment of the present invention and the sixth embodiment lies in the adhesive sealing composite layer 300 .

[0079] Specifically, in the seventh embodiment of the present invention, the sealing composite layer 300 includes an electromagnetic induction heating layer 310 and a sealing layer 320 which are sequentially laminated from top to bottom; the sealing layer 320 of the sealing composite layer 300 includes a sealing film 321 and an adhesive 322, and the adhesive 322 is located between the sealing film 321 and the electromagnetic induction heating layer 310. The sealing film 321 may include at least one of a PE film, a PP film, a PA film, a PVDC film, an EVOH film, and a PET film, and the thickness of the sealing film 321 is preferably 12 to 100 μm; and the adhesive 322 may be a conventional adhesive (such as dry composite adhesive, etc.), but is not limited thereto.

[0080] In the seventh embodiment of the present invention, the sealing composite layer 300 further includes a connecting film 330 and a protective film 340. The connecting film 330 is arranged on the uppermost layer of the sealing composite layer 300. The connecting film 330 is used to be compounded with the surface film 110 of the upper layer 100 and the folding splicing flap film 233; more specifically, the connecting film 330 is compounded with the surface film 110 of the upper layer 100 through the connecting adhesive 210, and is compounded with the second lower folding flap 233B of the folding splicing flap film 233 of the flap layer through the bonding adhesive 240; the connecting film 330 may include at least one of PE film, PP film, PA film, EPP film and EPE film; the thickness of the connecting film 330 is preferably 12 to 200 µm, thereby being able to improve the peeling strength between the connecting film 330 and the upper layer 100 and / or the folding splicing flap film 233 after compounding. The protective film 340 is arranged between the connecting film 330 and the electromagnetic induction heating layer 310; the protective film 340 may include at least one of a PET film, a PA film and a PP film; the thickness of the protective film 340 is preferably 12 to 30µm; thereby, when the protective film 340 is sequentially compounded with the connecting film 330, the wireless information integrated chip containing the antenna and the chip, and the adhesive layer 320, the chip in the wireless information integrated chip can be prevented from being damaged.

[0081] In the seventh embodiment of the present invention, adhesive a can be used to compound the connecting film 330 and the protective film 340 and the protective film 340 and the electromagnetic induction heating layer 310. Adhesive a can be a conventional adhesive, such as dry composite adhesive. Adhesive a can make the peel strength between the two composite layers (such as the connecting film 330 and the protective film 340) greater than or equal to 4N / 15mm.

[0082] The manufacturing method of the flap-type sealing gasket of the seventh embodiment of the present invention is as follows: First, an adhesive is applied to the upper surface of the protective film roll, so that the upper surface of the protective film roll and the lower surface of the connecting film roll are dry-laminated, and then placed in a maturing chamber for more than 24 hours to produce the first composite roll; Secondly, an adhesive is applied to the protective film surface of the first composite part coil, so that the protective film surface of the first composite part coil and the upper surface of the electromagnetic induction heating layer coil are dry-compounded, and the coil is placed in a maturing chamber for more than 24 hours to make a second composite part coil; Then, the electromagnetic induction heating layer of the second composite part coil is coated with adhesive, and the electromagnetic induction heating layer of the second composite part coil is dry-laminated with the upper surface of the adhesive sealing film coil, and then placed in a aging chamber for more than 24 hours to make the lower composite part coil. Alternatively, the electromagnetic induction heating layer of the second composite part coil is coated with hot melt adhesive to make the lower composite part coil (i.e., the adhesive sealing composite layer coil); Next, the to-be-joined pull-valve film roll is folded and pressed into a dead fold (the dead fold mentioned here means that a roller or plate with added pressure is used to forcefully press the to-be-joined pull-valve film into a fold that is not easy to dissipate, or a heating method is used to make the heating temperature close to or slightly exceed the Vicat softening point of the to-be-joined pull-valve film, and a fold that is extremely difficult to dissipate appears due to the effect of heat), so as to make a dead fold type pull-valve film roll to be joined; Next, an adhesive is applied to the lower surface of the dead-folded flap film roll to be spliced, so that the dead-folded flap film roll to be spliced ​​and the connecting film surface of the lower composite part roll are dry-compounded, and the roll is put into a maturing chamber for more than 24 hours to make a structural layer roll.

[0083] Next, a medium-strength adhesive is applied to the lower surface of the surface film roll, and the upper surface of the structural layer roll, the upper surface of the second flap film roll to be spliced ​​and the lower surface of the surface film roll are dry-compounded, and placed in a maturing chamber for more than 24 hours to produce a flap-type sealing gasket roll; Finally, the flap-type sealing gasket is cut into appropriate sizes according to the needs of the user; Embodiment eight: Cooperate Fig.12 As shown, the main difference between the eighth embodiment of the present invention and the seventh embodiment is that the eighth embodiment uses a composite film 370 to replace the protective film 340 of the seventh embodiment; and the flap layer of the eighth embodiment uses a spliced ​​flap film 232.

[0084] In the eighth embodiment of the present invention, the composite film 370 is disposed above the electromagnetic induction heating layer 310. More specifically, the composite film 370 is disposed between the connecting film 330 and the electromagnetic induction heating layer 310. The composite film 370 is used to improve the tensile strength of the flap-type sealing gasket of the present invention. In some embodiments, the composite film 370 may include at least one of a PP film, a PET film, and a PA film. The thickness of the composite film 370 is preferably 12 to 100 µm.

[0085] In the eighth embodiment of the present invention, adhesive a may be used to laminate the connecting film 330 and the composite film 370 and the electromagnetic induction heating layer 310 and the composite film 370 .

[0086] The manufacturing method of the flap-type sealing gasket of the eighth embodiment of the present invention is as follows: First, an adhesive is applied to the upper surface of the electromagnetic induction heating layer coil, so that the upper surface of the electromagnetic induction heating layer coil and the lower surface of the composite film coil are dry-compounded, and then placed in a maturing chamber for more than 24 hours to make a first composite coil; Secondly, an adhesive is applied to the composite film surface of the first composite part roll material, so that the composite film surface of the first composite part roll material and the lower surface of the connecting film roll material are dry-compounded, and the roll material is placed in a maturing chamber for more than 24 hours to produce a second composite part roll material; Then, an adhesive is applied to the electromagnetic induction heating layer of the second composite part coil, so that the electromagnetic induction heating layer of the second composite part coil is dry-laminated with the upper surface of the sealing film coil, and the coil is placed in a aging chamber for more than 24 hours to make a lower composite part coil; alternatively, a hot melt adhesive is applied to the electromagnetic induction heating layer of the second composite part coil to make a lower composite part coil (i.e., a sealing composite layer coil); Next, a bonding adhesive is applied to the lower surface of the surface film roll, and a spliced ​​flap film roll is sandwiched in the middle, so that the lower surface of the surface film roll, the upper surface of the spliced ​​flap film roll and the bonding film surface of the lower composite part roll are dry-compounded by a sandwich composite method, and then put into a curing chamber for more than 24 hours to make a flap-type sealing gasket roll; Finally, the flap-type sealing gasket is cut into appropriate sizes according to the needs of the user.

[0087] Embodiment nine: Cooperate Fig.13 As shown, the main difference between the ninth embodiment of the present invention and the sixth embodiment lies in the upper layer 100 and the adhesive sealing composite layer 300; in addition, the flap layer of the ninth embodiment adopts a folded flap film 231.

[0088] Specifically, in the ninth embodiment of the present invention, the upper layer 100 includes a surface film 110 and a first connecting film 120; the first connecting film 120 is disposed below the surface film 110, in other words, the first connecting film 120 can be directly compounded below the surface film 110, and the first connecting film 120 can also be indirectly compounded below the surface film 110 (i.e., other structures are configured between the surface film 110 and the first connecting film 120). The adhesive composite layer 300 includes a second connecting film 350, a thickening layer 360, an electromagnetic induction heating layer 310, and an adhesive layer 320 compounded in sequence from top to bottom.

[0089] In the ninth embodiment of the present invention, Fig.13 As shown, the first connecting film 120 is disposed at the bottom layer of the upper layer 100, and the first connecting film 120 is used to be combined with the adhesive composite layer 300; specifically, the first connecting film 120 is combined with the adhesive composite layer 300 through the adhesive 210. The first connecting film 120 may include at least one of a PE film, a PP film, a PA film, an EMMA film, and an EMAC film, and the thickness of the first connecting film 120 is preferably 12 to 100 μm; thereby, the peel strength between the first connecting film 120 and the adhesive composite layer 300 after combination can be improved.

[0090] In the ninth embodiment of the present invention, Fig.13As shown, the second connecting film 350 is disposed above the electromagnetic induction heating layer 310. In other words, the second connecting film 350 can be directly compounded above the electromagnetic induction heating layer 310, or the second connecting film 350 can be indirectly compounded above the electromagnetic induction heating layer 310 (that is, other structures are configured between the second connecting film 350 and the electromagnetic induction heating layer 310). Fig.13 As shown, the second connecting film 350 is arranged on the topmost layer of the adhesive composite layer 300, and is used to be composited with the upper layer 100; specifically, the second connecting film 350 is composited with the first connecting film 120 of the upper layer 100 through the adhesive 210; the second connecting film 350 may include at least one of PE film, PP film, PA film, EMMA film and EMAC film, and the thickness of the second connecting film 350 is preferably 12 to 100µm; thereby, the peel strength between the second connecting film 350 and the first connecting film 120 of the upper layer 100 after composite can be improved.

[0091] In the ninth embodiment of the present invention, Fig.13 As shown, the thickening layer 360 is disposed above the electromagnetic induction heating layer 310, and the thickening layer 360 is used to increase the thickness of the flap-type sealing gasket of the present invention. The thickening layer 360 includes at least one of an EPE layer, an EPP layer, a PE layer, a PP layer and paper, and the thickness of the thickening layer 360 is preferably 60 to 3000 μm; thereby, the thickness of the flap-type sealing gasket of the present invention can be increased.

[0092] In the ninth embodiment of the present invention, adhesive a can be used to compound between the second connecting film 350 and the thickening layer 360, and between the thickening layer 360 and the electromagnetic induction heating layer 310. Adhesive a can be a composite adhesive that can make the peel strength between the two composite layers (for example, the second connecting film 350 and the thickening layer 360 or the thickening layer 360 and the electromagnetic induction heating layer 310) greater than or equal to 4N / 15mm, but is not limited thereto. In addition, adhesive a can be used to compound between the surface film 110 and the first connecting film 120, and adhesive a can be a composite adhesive that can make the peel strength between the two composite layers (for example, the surface film 110 and the first connecting film 120) greater than or equal to 4N / 15mm, but is not limited thereto.

[0093] The manufacturing method of the flap-type sealing gasket of the ninth embodiment of the present invention is as follows: First, an adhesive is applied to the upper surface of the electromagnetic induction heating layer coil, so that the upper surface of the electromagnetic induction heating layer coil and the lower surface of the thickening layer coil are dry-compounded, and then placed in a maturing chamber for more than 24 hours to make a first composite coil; Secondly, an adhesive is applied to the thickened surface of the first composite part roll material, so that the thickened surface of the first composite part roll material and the lower surface of the second connecting film roll material are dry-compounded, and the roll material is placed in a aging chamber for more than 24 hours to produce a second composite part roll material; Then, an adhesive is applied to the electromagnetic induction heating layer of the second composite part coil, so that the electromagnetic induction heating layer of the second composite part coil is dry-laminated with the upper surface of the sealing film coil, and the coil is placed in a aging chamber for more than 24 hours to make a lower composite part coil; alternatively, a hot melt adhesive is applied to the electromagnetic induction heating layer of the second composite part coil to make a lower composite part coil (i.e., a sealing composite layer coil); Next, the valve roll is folded in half and pressed into a dead fold in such a way that the cross-sectional width of the upper folded and pulled valve is less than or equal to the cross-sectional width of the lower folded and pulled valve, thereby making a folded and pulled valve roll; Next, an adhesive is applied to the lower surface of the folded-valve film roll material, so that the lower surface of the folded-valve film roll material and the second connecting film surface of the lower composite part roll material are dry-compounded, and then placed in a curing chamber for more than 24 hours to produce a structural layer roll material; Next, an adhesive is applied to the lower surface of the surface film roll, so that the surface film roll and the upper surface of the first connecting film roll are dry-compounded, and the roll is placed in a curing chamber for more than 24 hours to produce an upper composite roll (i.e., an upper layer roll); Next, a medium-strength adhesive is applied to the first connecting film surface of the upper composite part coil, so that the first connecting film surface of the upper composite part coil and the upper surface of the structural layer coil are dry-compounded, and then placed in a curing chamber for more than 24 hours to produce a flap-type sealing gasket coil; Finally, the flap-type sealing gasket is cut into appropriate sizes according to the needs of the user.

[0094] To facilitate understanding of the wireless information integrated chip of the present invention, the implementation of the wireless information integrated chip is introduced below.

[0095] The first implementation method of the wireless information integrated chip: Cooperate Figures 14 to 16 As shown, in the first embodiment of the wireless information integrated sheet, the wireless information integrated sheet includes a base film 1w, a first adhesive layer 2w and an information and heating layer 3w. The first adhesive layer 2w is located between the base film 1w and the information and heating layer 3w so as to bond the base film 1w and the information and heating layer 3w.

[0096] In the first embodiment of the wireless information integrated sheet, the base film 1w is used to make the initial layer of the wireless information integrated sheet. In a specific example, the base film 1w may include at least one of a PI film, a PEN film, a PET film, a PC film, a PP film and a PE film, and the thickness of the base film 1w is preferably 20 to 150 μm. Within this range, the longitudinal tensile strength of the base film 1w is relatively large. The lower surface of the base film 1w is bonded to the first adhesive layer 2w, and the upper surface of the base film 1w can be used as a printing surface to print different patterns.

[0097] In the first embodiment of the wireless information integrated sheet, the first adhesive layer 2w is a layer used to bond the base film 1w and the information and heating layer 3w. The first adhesive layer 2w only needs to be able to bond the base film 1w and the information and heating layer 3w, and its material can be, for example, composite glue. The thickness of the first adhesive layer 2w can be 0.5 to 7µm, and the first adhesive layer 2w can make the peel strength between the two bonded layers of material greater than 4N / 15mm.

[0098] In the first embodiment of the wireless information integrated sheet, the information and heating layer 3w includes an information area 31w and an electromagnetic induction heating ring 32w. The information area 31w has the function of wireless information reading and writing transmission, so as to facilitate subsequent product traceability. Among them, the information area 31w has an antenna 312w and a chip 311w that are mutually conductive. The electromagnetic induction heating ring 32w can pass through the electromagnetic field generated by the electromagnetic induction sealing machine, and use electromagnetic induction to heat it, so that the adhesive layer 320 of the present invention is heated and melted and adhered to the container mouth of the packaging container, and then can be used as an electromagnetic induction sealing gasket to seal the container mouth. The wireless information integrated sheet of the present invention can generate heat in the electromagnetic induction heating ring 32w, which can block the heat from being transferred to the central area of ​​the sealing gasket during electromagnetic induction sealing, and can save energy waste. In addition, when applied to a sealing gasket containing a battery, the thickness of the information and heating layer 3w can be 6µm to 2.5mm; and when applied to a sealing gasket without a battery, the thickness of the information and heating layer 3w can be 6 to 300µm.

[0099] In the first embodiment of the wireless information integrated chip, Fig.15As shown, the electromagnetic induction heating ring 32w surrounds the information area 31w in a planar perspective, and there is a gap ITV between the electromagnetic induction heating ring 32w and the information area 31w, that is, there is no physical connection element (such as the physical connection bridge 33w described later) between the electromagnetic induction heating ring 32w and the information area 31w. Thereby, there is a gap ITV between the electromagnetic induction heating ring 32w and the information area 31w, and the gap ITV can block the heat from being conducted to the information area 31w. The gap ITV (the distance between the outermost edge of the information area 31w and the innermost edge of the electromagnetic induction heating ring 32w) can be 0.1 to 3mm. The material of the electromagnetic induction heating ring 32w can be metal, such as aluminum, copper, gold, silver, or tin, but not limited thereto. From the perspective of the effect of generating heat when subjected to a changing electromagnetic field and the cost, the electromagnetic induction heating ring 32w is preferably aluminum foil, and its thickness is preferably 6 to 40µm.

[0100] In the first embodiment of the wireless information integrated chip, Fig.16 As shown, the information area 31w includes a chip 311w and an antenna 312w, and the chip 311w and the antenna 312w can realize the wireless information transmission function based on the RFID frequency band that the user wants to use. As for the chip 311w, it can have a unique identification code, which can be selected according to the purpose. For example, the chip 311w 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, etc., without special restrictions. These chips can all match the antenna 312w described later to realize the wireless information communication function. As for the antenna 312w, it mainly generates a signal that can be transmitted wirelessly, and its material can be metal, such as copper, silver, gold, tin or aluminum, etc., without special restrictions.

[0101] In the first embodiment of the wireless information integrated sheet, the method for making the wireless information integrated sheet coil can be as follows: first, apply a composite glue (first adhesive layer 2w) on the composite surface of the base film coil, and compound it with the composite surface of the metal foil coil to make a wireless information integrated sheet blank coil. Secondly, the metal foil of the wireless information integrated sheet blank coil is etched, the antenna 312w and the chip 311w are electrically connected (Bonding), and then the chip 311w and the chip connection part are encapsulated with chip encapsulation protective glue by a dispensing machine to protect the chip 311w and the chip connection part, and a wireless information integrated sheet coil (i.e., the above-mentioned electromagnetic induction heating layer coil) is made. At this time, the surface of the metal foil forms the information and heating layer 3w, and the wireless information integrated sheet blank coil becomes the wireless information integrated sheet coil; in addition, the wireless information integrated sheet coil is cut accordingly to obtain the wireless information integrated sheet. In addition, if you want to add a battery to the information and heating layer 3w, you can use a welding machine or conductive glue to process the battery cell and the chip 311w into an electrical connection.

[0102] The second implementation method of the wireless information integrated chip: Cooperate Fig.17 As shown, the difference between the second embodiment of the wireless information integrated sheet and the first embodiment of the wireless information integrated sheet is that in the second embodiment of the wireless information integrated sheet, in addition to the above-mentioned base film 1w, the first adhesive layer 2w and the information and heating layer 3w, the wireless information integrated sheet also includes a protective layer 5w and a second adhesive layer 4w. Among them, the protective layer 5w is located on the side of the information and heating layer 3w away from the base film 1w. The second adhesive layer 4w is located between the information and heating layer 3w and the protective layer 5w, and is a layer used to connect the information and heating layer 3w and the protective layer 5w.

[0103] In the second embodiment of the wireless information integrated sheet, the second adhesive layer 4w can be used as long as it can bond the information to the heating layer 3w and the protective layer 5w. Its material can be, for example, dry composite adhesive, and is not particularly limited. The thickness of the second adhesive layer 4w can be 0.5 to 7µm, and it is preferably such that the peel strength between the two layers of material bonded is greater than 4N / 15mm. The second adhesive layer 4w can extend to fill the gap between the electromagnetic induction heating ring 32w and the information area 31w to enhance the overall structural strength of the wireless information integrated sheet.

[0104] In the second embodiment of the wireless information integrated chip, the protective layer 5w is used to protect the information area 31w (i.e., the chip 311w, the antenna 312w, and the battery that can be added) from being damaged by external forces and affecting its wireless information transmission capability. The protective layer 5w may include at least one of PET film, PP film, PE film, PA film, PVDC film, EVOH film, PEN film, and PI film. The thickness of the protective layer 5w may be 12 to 100µm. In addition, the upper surface or the lower surface of the protective layer 5w may be used as a printing surface.

[0105] The third implementation method of wireless information integrated chip: Fig.18 and Fig.19As shown, the difference between the third embodiment of the wireless information integrated sheet and the first embodiment of the wireless information integrated sheet is that: in the third embodiment of the wireless information integrated sheet, at least one physical connection bridge 33w is provided between the information area 31w and the electromagnetic induction heating ring 32w, the physical connection bridge 33w connects the information area 31w and the electromagnetic induction heating ring 32w, the physical connection bridge 33w, the antenna 312w of the information area 31w and the electromagnetic induction heating ring 32w can be integrally arranged, the length of the physical connection bridge 33w can be 0.1 to 3mm, and the width of the physical connection bridge 33w can be 0.01 to 5mm. At this time, although the electromagnetic induction heating ring 32w is electrically connected to the information area 31w through the physical connection bridge 33w, the distance of the wireless communication is hardly reduced, and the physical connection bridge 33w conducts a very small amount of heat.

[0106] It should be noted that the cross-sectional width W2 of the flap layer 230 of the present invention is greater than or equal to one sixth of the cross-sectional width W1 of the flap-type sealing gasket 50, and the cross-sectional width W2 of the flap layer 230 is less than or equal to five sixths of the cross-sectional width W1 of the flap-type sealing gasket 50. When the diameter of the flap-type sealing gasket is relatively large, the cross-sectional width of the flap layer 230 can be smaller; when the diameter of the flap-type sealing gasket is relatively small, the cross-sectional width of the flap layer 230 can be larger.

[0107] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A flap-type sealing gasket, characterized in that: It includes an upper layer, a connecting layer and a bonding composite layer which are compounded in sequence from top to bottom; The upper layer includes the surface membrane; The sealing composite layer comprises an electromagnetic induction heating layer and a sealing layer which are laminated in sequence from top to bottom; The connecting layer includes a connecting adhesive and a flap layer; the connecting layer composites the upper layer with the adhesive-sealing composite layer through the connecting adhesive, and forms an unbonded area between the upper layer and the adhesive-sealing composite layer; the flap layer is arranged in the unbonded area, and the flap layer is composited with the upper layer through the composite adhesive and / or the flap layer is composited with the adhesive-sealing composite layer through the bonding adhesive.

2. The flap-type sealing gasket according to claim 1, characterized in that: The flap layer is compounded with the upper layer through a compound adhesive, a gap region is formed between the flap layer and the adhesive-sealed composite layer, and the bonding adhesive makes the peel strength between the upper layer and the adhesive-sealed composite layer greater than or equal to 17.8N / 15mm; The flap layer adopts a single-piece flap film, and the single-piece flap film includes at least one of paper, PET film, PP film, PA film, PEN film and PI film.

3. The flap-type sealing gasket according to claim 1, characterized in that: The flap layer is compounded with the adhesive sealing composite layer by bonding the adhesive, a gap region is formed between the flap layer and the upper layer, and the adhesive is bonded so that the peel strength between the upper layer and the adhesive sealing composite layer is greater than or equal to 17.8N / 15mm; The flap layer adopts a single-piece flap film, and the single-piece flap film includes at least one of paper, PET film, PP film, PA film, PEN film and PI film.

4. The flap-type sealing gasket according to claim 1, characterized in that: The flap layer adopts a folded flap film, which includes a first upper folded flap and a first lower folded flap. The first upper folded flap is composited with the upper layer by a composite adhesive, and the first lower folded flap is composited with the adhesive sealing composite layer by an adhesive adhesive, and a gap area is formed between the first upper folded flap and the first lower folded flap. The first upper folding valve and the first lower folding valve both include at least one of PA film, PP film, PET film, PEN film and PI film, and the cross-sectional width of the first upper folding valve is less than or equal to the cross-sectional width of the first lower folding valve.

5. The flap-type sealing gasket according to claim 1, characterized in that: The flap layer is compounded with the upper layer through a compound adhesive, a gap region is formed between the flap layer and the adhesive-sealed composite layer, and the bonding adhesive makes the peel strength between the upper layer and the adhesive-sealed composite layer greater than or equal to 17.8N / 15mm; The flap layer adopts a spliced ​​flap film, which includes a first flap film and a second flap film, and a gap area is formed between the first flap film and the second flap film; The first flap film includes at least one of PP film, PET film, PA film, PEN film and PI film, and the second flap film includes at least one of paper, PP film, PET film, PA film, PEN film and PI film.

6. The flap-type sealing gasket according to claim 1, characterized in that: The flap layer adopts a folded spliced ​​flap film, which includes a second upper folded flap and a second lower folded flap. The second upper folded flap is composited with the upper layer by a composite adhesive, and the second lower folded flap is composited with the adhesive composite layer by an adhesive adhesive, and a gap area is formed between the second upper folded flap and the second lower folded flap. The second upper folded pull valve includes a first pull valve and a second pull valve, and a gap area is formed between the first pull valve and the second pull valve. The first pull valve film of the second upper folding pull valve film and the second lower folding pull valve film both include at least one of a PA film, a PP film, a PET film, a PEN film and a PI film; The second pull-valve film of the second upper folded pull-valve film includes at least one of paper, PA film, PP film, PET film, PEN film and PI film.

7. The flap-type sealing gasket according to claim 1, characterized in that: The cross-sectional width of the flap layer is greater than or equal to one sixth of the cross-sectional width of the flap-type sealing gasket, and the cross-sectional width of the flap layer is less than or equal to five sixths of the cross-sectional width of the flap-type sealing gasket.

8. The flap-type sealing gasket according to claim 1, characterized in that: The adhesive sealing composite layer further comprises a connecting film; the connecting film is arranged on the uppermost layer of the adhesive sealing composite layer, and the connecting film comprises at least one of a PE film, a PP film, a PA film, an EPP film and an EPE film.

9. The flap-type sealing gasket according to claim 1, characterized in that: The upper layer further includes a first connecting film, which is disposed at the bottom layer of the upper layer; the first connecting film includes at least one of a PE film, a PP film, a PA film, an EMMA film, and an EMAC film; The adhesive sealing composite layer further includes a second connecting film, which is arranged on the uppermost layer of the adhesive sealing composite layer. The second connecting film includes at least one of a PE film, a PP film, a PA film, an EPP film and an EPE film.

10. The flap-type sealing gasket according to claim 1, characterized in that: The sealing composite layer further comprises a composite film, which is arranged above the electromagnetic induction heating layer, and comprises at least one of a PP film, a PE film, a PEN film, a PET film and a PA film.

11. The flap-type sealing gasket according to claim 1, characterized in that: The connecting adhesive, bonding adhesive and composite adhesive are dry composite adhesive or hot-melt laminating adhesive, and the material of the hot-melt laminating adhesive is one of PE, PP, EMAA, EAA, EEA, EMAC and EMMA.

12. The flap-type sealing gasket according to any one of claims 1 to 11, characterized in that: The surface film includes at least one of a PEN film, a PI film, a PET film, a PE film, a PP film and a PA film.

13. The flap-type sealing gasket according to any one of claims 1 to 11, characterized in that: The sealing layer is a hot melt adhesive, and the material of the hot melt adhesive is one of EVA, PIB, EBA, EAA, EMAA, EMAC, polyacrylate and acrylic copolymer.

14. The flap-type sealing gasket according to any one of claims 1 to 11, characterized in that: The sealing layer includes a sealing film and an adhesive, the sealing film includes at least one of PE film, PP film, PA film, PVDC film, EVOH film and PET film, and the adhesive is located between the sealing film and the electromagnetic induction heating layer.

15. The flap-type sealing gasket according to any one of claims 1 to 11, characterized in that: The electromagnetic induction heating layer adopts aluminum foil.

16. The flap-type sealing gasket according to any one of claims 1 to 11, characterized in that: The electromagnetic induction heating layer adopts wireless information integrated chip; The wireless information integrated sheet includes a base film, an information and heating layer and a first adhesive layer; the information and heating layer includes an information area and an electromagnetic induction heating ring; the information area has an antenna and a chip that are connected to each other, the electromagnetic induction heating ring surrounds the information area, and the first adhesive layer is located between the base film and the information and heating layer.

17. The flap-type sealing gasket according to claim 16, characterized in that: The wireless information integrated sheet also includes a protective layer and a second adhesive layer. The protective layer is located on the side of the information and heating layer away from the base film, and the second adhesive layer is located between the information and heating layer and the protective layer.

18. The flap-type sealing gasket according to claim 16, characterized in that: There is a gap between the electromagnetic induction heating ring and the information area.

19. The flap-type sealing gasket according to claim 18, characterized in that: The interval between the electromagnetic induction heating ring and the information area is 0.1mm to 3mm.

20. The flap-type sealing gasket according to claim 18, characterized in that: There is a full space between the electromagnetic induction heating ring and the information area.

21. The flap seal gasket according to claim 18, wherein: The information and heating layer also includes at least one physical connection bridge, which connects the information area and the electromagnetic induction heating ring.

Images