A paper bill roll packaging process and packaging structure

Through the double-roll hot-press packaging technology of hot-melt adhesive PET and silicone protective film after slicing, the problem of large-format paper bill packaging is solved, and the complete sealing and packaging of bills is achieved, reducing storage and verify the authenticity of the bill through anti-counterfeiting marks.

CN113306765BActive Publication Date: 2024-12-20SHENZHEN GUANMENG STICKER PROD CO LTD
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Patent Information

Application Number
CN202110748676.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-07-02
Publication Date
2024-12-20
Estimated Expiration
2041-07-02

AI Technical Summary

Technical Problem

The prior art is difficult to effectively package and package large-format paper bills, which leads to high packaging, takes up more space, and increases the difficulty of collection.

Method used

The slitting hot melt adhesive PET protective film and silicone protective film are used for double-roll hot-press packaging, and anti-counterfeiting marks are printed on the PET protective film. The paper bills are complete through the bonding and hot pressing of silicone and PET protective film. Sealed and packaged.

Benefits of technology

It realizes effective packaging and packaging of large-format paper bills, prevents bills from being damaged, reduces storage space, reduces costs, and verifies authenticity without unpacking through anti-counterfeiting marks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a roll-packaging process for paper bills, which comprises the following steps: cutting a PET protective film with hot-melt adhesive and a silicone protective film according to the size of the paper bills; printing an anti-counterfeiting mark at a corresponding position of the adhesive surface of the PET protective film; placing one side of the paper bill on a bonding surface of the silicone protective film, and then bonding the other side of the paper bill through another silicone protective film; bonding the adhesive surfaces of two PET protective films to the outer side surfaces of two silicone protective films respectively; hot-pressing the paper bills attached with the silicone protective film and the PET protective film in one direction by means of double-roll hot pressing; trimming the hot-pressed products; and rolling up the packaged products. By means of the above process, the paper bills can be rolled up without causing wrinkles or damage to the paper bills, and are convenient for storage and transportation by means of rolling up, thus reducing costs and being able to prevent counterfeiting.
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Description

Technical Field

[0001] The present invention relates to the technical field of product packaging, and in particular to a roll-packaging process and packaging structure for paper bills. Background Art

[0002] When collecting paper bills in the market, some smaller paper bills are usually packaged separately through some small-size packaging structures, that is, some smaller bills are packaged individually and do not need to be rolled. However, it is difficult to package some rare bills with large page sizes in the above way, and they cannot be rolled after packaging. Therefore, they need to occupy a large space during storage and transportation, which is not conducive to storage and increases the difficulty of collection for collectors. Because large-page bills are relatively rare, the number is small, and the packaging is difficult, there is currently no suitable packaging method on the market that can better package large-page paper bills and roll the packaged paper bills. Summary of the invention

[0003] In view of this, the present invention discloses a roll-packaging process for paper bills, which can package large-size paper bills and roll-pack the packaged paper bills.

[0004] The present invention discloses a paper bill roll packaging process, comprising the following steps:

[0005] Cut the PET protective film with hot melt adhesive and the silicone protective film according to the size of the paper bill;

[0006] Printing an anti-counterfeiting mark at a corresponding position of the adhesive surface of the PET protective film;

[0007] Place one side of the paper bill on the bonding surface of one of the silicone protective films, and then bond the other side of the paper bill through the other silicone protective film; the adhesive surfaces of the two PET protective films are bonded to the outer sides of the two silicone protective films respectively;

[0008] The paper bill with the silicone protective film and the PET protective film attached thereto is hot-pressed in one direction by means of double-roller hot-pressing;

[0009] Trimming the edges of the products after hot pressing;

[0010] The packaged products are rolled.

[0011] Furthermore, the single side size of the PET protective film after cutting is 3 cm to 7 cm larger than the corresponding side of the paper bill;

[0012] The size of a single side of the silicone protective film after cutting is 3 mm to 5 mm larger than the corresponding side of the paper bill.

[0013] Furthermore, a PE protective film is attached to the outer side of the PET protective film.

[0014] Furthermore, a reference line is set on the bonding surface of the silicone protective film, and the paper bill is placed at a corresponding position of the silicone protective film through the reference line.

[0015] Furthermore, a laser sound anti-counterfeiting mark is printed on the adhesive surface of the PET protective film by screen printing.

[0016] Furthermore, a label is attached between the two PET protective films, and the label is located on one side of the paper ticket and at the edge of the product.

[0017] A paper bill rollable packaging structure is applicable to the packaging method, and the packaging structure comprises:

[0018] Two sealing layers attached to both sides of the paper ticket;

[0019] The packaging layer includes a silicone protective film and a plastic sealing film, the bonding surface of the silicone protective film is attached to one side of the paper bill, and the plastic sealing film is attached to the outer side of the silicone protective film;

[0020] The edge positions of the two plastic sealing films are in contact with each other.

[0021] Furthermore, the plastic sealing film is a PET protective film with hot melt adhesive.

[0022] Furthermore, a PE protective film is attached to the outer side of the PET protective film.

[0023] Furthermore, a label is attached between the two PET protective films; and an anti-counterfeiting mark is provided on the adhesive surface of the plastic sealing film.

[0024] Compared with the prior art, the technical solution disclosed in the present invention has the following beneficial effects:

[0025] Through the above process method, not only can the two silicone protective films be completely fitted with the two sides of the paper bill, but also the gas generated when the paper bill is placed can be discharged from one end to prevent the paper bill from wrinkling and damage; through the double-roller hot pressing method, the hot melt adhesive on the PET protective films on both sides can be melted and bonded together to achieve a perfect seal for the paper bill; because the paper bill is completely fitted with the silicone protective film, the packaged paper bill will not be damaged when it is rolled, and it can be transported and stored by rolling, reducing the occupied space and reducing costs; the anti-counterfeiting mark is printed on the adhesive surface of the PET protective film, and the authenticity of the paper bill does not need to be unpacked to check, and it is used to check whether the packaged paper bill has been unpacked. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the packaging structure;

[0027] Figure 2 is a schematic diagram of the packaging structure;

[0028] Figure 3 is a cross-sectional schematic diagram of the packaging structure;

[0029] Figure 4 It is a schematic diagram of the packaged product;

[0030] Figure 5 This is a schematic diagram of the packaged product being rolled;

[0031] Figure 6 This is a schematic diagram of the product after packaging;

[0032] Description of the attached drawings

[0033] 100. Packaging structure; 10. Paper bill; 20. Packaging layer; 21. Silicone protective film; 22. PET protective film; 23. PE protective film; 30. Anti-counterfeiting mark; 40. Label. DETAILED DESCRIPTION

[0034] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to another component, or there may be a central component at the same time. Unless otherwise defined, all technical and scientific terms used in this article have the same meaning as those generally understood by technicians in the technical field of the present invention. It should also be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection between the two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0035] It should also be noted that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0036] like Figure 1 As shown, the present invention discloses a paper bill roll-up packaging structure 100, which is used to package and protect large-sized paper bills 10, and can roll up the packaged paper bills 10 to reduce the space they occupy, making it easier to store and transport them.

[0037] The packaging structure 100 includes packaging layers 20 respectively arranged on both sides of the paper bill 10, and the two packaging layers 20 are respectively bonded to the two side surfaces of the paper bill 10, and the parts of the two packaging layers 20 that are longer than the side edges of the paper bill 10 are bonded to each other, thereby encapsulating the paper bill 10 in a product formed by bonding the two packaging layers 20.

[0038] Specifically, the two packaging layers 20 are symmetrically distributed with each other. After the two packaging layers 20 have completed packaging the paper bill 10, the two packaging layers 20 are cut so that the sides thereof are flush with each other.

[0039] like Figure 2 and Figure 3 As shown, specifically, the packaging layer 20 includes a silicone protective film 21 and a plastic sealing film, the bonding surface of the silicone protective film 21 is bonded to one side of the paper bill 10, the paper bill 10 is located in the middle position of the two silicone protective films 21, the two plastic sealing films are respectively bonded to the outside of the two silicone protective films 21, and the side edges of the two plastic sealing films are bonded to each other to form a product, thereby encapsulating the paper bill 10 inside.

[0040] Specifically, the plastic sealing film is a PET protective film 22 with hot melt adhesive. When the two silicone protective films 21 are attached to the two sides of the paper bill 10, the two PET protective films 22 are respectively attached to the outer sides of the two silicone protective films 21 through the adhesive surface, and the edge parts of the two PET protective films 22 are bonded together by the hot melt adhesive to encapsulate the paper bill 10.

[0041] The PET protective film 22 and the silicone protective film 21 are both transparent. After the paper bill 10 is packaged, the paper bill 10 can be observed through the PET protective film 22 and the silicone protective film 21 .

[0042] The PET protective film 22 includes a smooth surface and an adhesive surface. In the packaging structure, the adhesive surface is located on the inner side of the PET protective film 22. The adhesive surface is coated with hot melt adhesive and is bonded to the silicone protective film 21 through the hot melt adhesive. The adhesive surfaces at the edges of the two PET protective films 22 are bonded together through the hot melt adhesive to achieve sealing of the paper bill 10. In the packaging structure, the smooth surface is located on the outer side of the PET protective film 22.

[0043] A PE protective film 23 is attached to the outer side of the PET protective film 22, that is, the PE protective film 23 is in contact with the smooth surface of the outer side of the PET protective film 22 to protect the smooth surface of the PET protective film 22 and prevent the smooth surface of the PET protective film 22 from being damaged when the paper bill 10 is packaged and the packaged paper bill is stored and transported.

[0044] In the present application, before the PET protective film 22 is attached to the silicone protective film 21, the PE protective film 23 is first attached to the glossy surface of the PET protective film 22, and then the PET protective film 22 attached with the PE protective film 23 is cut.

[0045] Specifically, the thickness of the PET protective film 22 is generally selected to be 0.075 mm to 0.125 mm, and the thickness of the PET protective film 22 can be selected according to the thickness and size of the paper bill 10, and the specific thickness is not limited here.

[0046] Specifically, the thickness of the silicone protective film 21 is generally selected to be 0.03 mm to 0.06 mm, and the thickness of the silicone protective film 21 can be selected according to the thickness and size of the paper bill 10, and the specific thickness is not limited here.

[0047] Specifically, the size of the silicone protective film 21 is cut according to the size of the paper bill 10, and the single side size of the silicone protective film 21 is larger than the corresponding side length of the paper bill 10, so that when the paper bill 10 is placed on the bonding surface of one of the silicone protective films 21, the side of the paper bill 10 will not exceed the coverage of the silicone protective film 21. When the two silicone protective films 21 are respectively bonded to the two sides of the paper bill 10, the paper bill 10 can be completely located within the coverage of the two silicone protective films 21. The length of the single side size of the silicone protective film 21 that is larger than the corresponding side size of the paper bill 10 can be cut or selected according to the size and thickness of the paper bill 21. In the present application, the length of the single side size of the silicone protective film 21 that is larger than the corresponding side size of the paper bill 10 is preferably 3mm to 5mm.

[0048] Specifically, the size of the PET protective film 22 is cut according to the size of the paper bill 10, and the single side size of the PET protective film 22 is larger than the corresponding side length of the paper bill 10 and larger than the corresponding side length of the silicone protective film 21, so that after the PET protective film 22 is attached to the corresponding silicone protective film 21, the paper bill 10 attached with the silicone protective film 21 and the silicone protective film 21 are located within the coverage of the PET protective film 22; the parts of the two PET protective films 22 that exceed the silicone protective film 21 are bonded to each other by hot melt adhesive, so that the two PET protective films 22 are bonded together, thereby achieving the packaging of the paper bill 10. The single side size of the PET protective film 22 is larger than the size of the corresponding side of the paper bill 10, and the specific size can be cut or selected according to the size and thickness of the paper bill 10. In the present application, the length value of the single side size of the PET protective film 22 larger than the size of the corresponding side of the paper bill 10 is preferably 3cm to 7cm.

[0049] like Figures 4 to 6 As shown, further, an anti-counterfeiting mark 30 is set on the adhesive surface of the PET protective film 22. Specifically, the anti-counterfeiting layer is printed on the adhesive surface of the PET protective film 22 by screen printing to form the anti-counterfeiting mark 30. In the present application, the anti-counterfeiting mark 30 is a laser sound anti-counterfeiting mark, so that the authenticity of the packaged paper bill 10 can be checked without unpacking, which plays a certain uniqueness and traceability. The anti-counterfeiting layer adopts a one-machine-one-ink method, and the content of the anti-counterfeiting layer can only be read by the corresponding equipment, which improves the anti-counterfeiting effect.

[0050] The anti-counterfeiting layer is printed by screen printing. Specifically, the screen mesh number is preferably 300 to 350. If it is too coarse, it will be easy to be blurred, and if it is too fine, the ink will be too little, resulting in the instrument being unable to read. The screen printing scraper is best used at 75 to 80 degrees, and the printed lines and fonts are clear.

[0051] Furthermore, the anti-counterfeiting mark 30 is printed on the adhesive surface of the PET protective layer 22. After the paper bill 10 is packaged, if the packaged paper bill is unpacked, the anti-counterfeiting mark 30 may be damaged, thereby determining whether the packaged paper bill 10 has been unpacked.

[0052] Furthermore, a label 40 is provided between the two PET protective films 22, and the label 40 is located on one side of the paper bill 10 and at the edge of one end of the PET protective film 22. After the paper bill 10 is packaged, the packaged paper bill 10 is rolled up from the end away from the label 40, so that the label 40 is located on the outside. After the paper bill 10 is rolled up, the content of the label 40 can also be read. When the PET protective film 22 is cut and trimmed, a position for attaching the label 40 should be left. The cutting of the PET protective film 22 needs to be determined according to the size of the paper bill 10 and the label 40.

[0053] The present invention also discloses a paper bill roll packaging process, which is used to process the above packaging structure. The packaging process specifically includes the following steps:

[0054] Cut the PET protective film 22 with hot melt adhesive and the silicone protective film 21 according to the size of the paper bill 10;

[0055] Printing an anti-counterfeiting mark 40 at a corresponding position of the adhesive surface of the PET protective film 22;

[0056] Place one side of the paper bill 10 on the bonding surface of one of the silicone protective films 21, and then bond the other side of the paper bill 10 through the other silicone protective film 21; the adhesive surfaces of the two PET protective films 22 are bonded to the outer sides of the two silicone protective films 21 respectively;

[0057] The paper ticket 10 attached with the silicone protective film 21 and the PET protective film 22 is hot-pressed in one direction by double-roll hot-pressing;

[0058] Trimming the products after hot pressing;

[0059] The packaged products are rolled.

[0060] Specifically, the silicone protective film 21 and the PET protective film 22 are cut and split according to the size and thickness of the paper bill 10 , so that the silicone protective film 21 and the PET protective film 22 can encapsulate and protect the paper bill 10 .

[0061] The two silicone protective films 21 cut and cut are respectively attached to the two side surfaces of the paper bill 10, so that the paper bill 10 is located within the coverage of the two silicone protective films 21. During the attachment, the paper bill 10 is placed on the corresponding position of the attachment surface of one of the silicone protective films 21, so that one side surface of the paper bill 10 is attached to the silicone protective film 21, and then the attachment surface of the other silicone protective film 21 is attached to the other side surface of the paper bill 10.

[0062] Specifically, corresponding reference lines are set on the bonding surface of the silicone protective film 21, and then the paper bill 10 is placed on the bonding surface of the silicone protective film 21 according to the reference lines, so that the paper bill 10 is placed at the corresponding position.

[0063] After the two silicone protective films 21 are respectively attached to the two side surfaces of the paper bill 10 , the two PET protective films 22 are respectively attached to the outer side surfaces of the two silicone protective films 21 , so that the paper bill 10 and the two silicone protective films 21 are within the coverage of the two PET protective films 22 .

[0064] Furthermore, the size of the silicone protective film 21 after cutting is 3mm to 5mm larger than the corresponding side of the paper bill, so that the paper bill 10 can be located within the coverage of the silicone protective film 21; the size of the PET protective film 22 after cutting is 3cm to 7cm larger than the corresponding side of the paper bill, so that the paper bill 10 and the two silicone protective films 21 are within the coverage of the two PET protective films 22.

[0065] Furthermore, an anti-counterfeiting mark 30 is printed at a corresponding position on the rubber surface of the PET protective film 22 for anti-counterfeiting. Specifically, the anti-counterfeiting layer is printed on the rubber surface of the PET protective film 22 by screen printing to form an anti-counterfeiting mark 30. In the present application, the anti-counterfeiting mark 30 is a laser sound anti-counterfeiting mark, so that the authenticity of the encapsulated paper bill can be verified without unpacking, which has a certain uniqueness and traceability. The anti-counterfeiting layer adopts a one-machine-one-ink method, and the content of the anti-counterfeiting layer can only be read by the corresponding equipment, thereby improving the anti-counterfeiting effect. When setting the anti-counterfeiting mark, it is necessary to flow out the position of the fusion point when the two PET protective films are bonded.

[0066] The anti-counterfeiting layer is printed by screen printing. Specifically, the screen mesh number is preferably 300 to 350. If it is too coarse, it will be easy to be blurred, and if it is too fine, the ink will be too little, resulting in the instrument being unable to read. The screen printing scraper is best used at 75 to 80 degrees, and the printed lines and fonts are clear.

[0067] In addition, the anti-counterfeiting mark 30 is printed on the adhesive surface of the PET protective layer 22. After the paper bill 10 is packaged, if the packaged paper bill 10 is unpacked, the anti-counterfeiting mark 30 may be damaged, which can be used to determine whether the packaged paper bill 10 has been unpacked.

[0068] Furthermore, a label 40 is provided between the two PET protective films 22, and basic information of the paper bill 10 is recorded through the label 40. Specifically, the label 40 is located on one side of the paper bill 10 and is located near the edge of the PET protective film 22. When the two PET protective films 22 are bonded together by heat pressing, the label 40 can be fixed.

[0069] Furthermore, a PE protective film 23 is attached to the outer side of the PET protective film 22, and then the PET protective film 22 and the PE protective film 23 are cut according to the size of the paper bill 10 and the placement position of the label 40. The PE protective film 23 is used to protect the glossy surface of the PET protective film 22 to prevent the PET protective film 22 from being damaged during packaging, storage or transportation.

[0070] After the above preparations are completed, the paper bill 10 attached with the silicone protective film 21 and the PET protective film 22 enters the double-roll hot press from one end, and the double-roll hot press is used to perform hot pressing and packaging on the paper bill in one direction.

[0071] One end of the paper ticket 10 attached with the silicone protective film 21 and the PET protective film 22 is inserted into the gap between the two hot pressing rollers, and the two hot pressing rollers rotate to press and transmit the paper ticket 10 attached with the silicone protective film 21 and the PET protective film 22, and apply a certain pressing force to it, so that the silicone protective film 21 and the paper ticket 10 are completely attached. When the paper ticket 10 is bent, the paper ticket 10 will not be damaged because it is supported by the silicone protective film 21; one end of the paper ticket 10 attached with the silicone protective film 21 and the PET protective film 22 is inserted into the gap between the two hot pressing rollers, and is pressed by the two hot pressing rollers. The two hot-pressing rollers perform hot-pressing transmission until the paper bill 10 completely extends out of the gap between the two hot-pressing rollers, so that the gas generated when the paper bill 10 is placed on the silicone protective film 21 can be discharged, thereby preventing the presence of gas in the packaged product, which causes the paper bill 10 packaged in the product to be wrinkled or even damaged; when the two hot-pressing rollers perform hot-pressing transmission on the paper bill 10, the two hot-pressing rollers will heat the PET protective film 22, and the hot-melt adhesive will melt when heated, so that the parts where the edges of the two PET protective films 22 are attached together are bonded together by the hot-melt adhesive and cannot be separated, until the two PET protective films 22 completely pass through the gap between the two hot-pressing rollers, thereby completing the packaging of the bill.

[0072] The width of the gap between the two hot pressing rollers can be adjusted according to the total thickness of the product, thereby adjusting the pressing force of the two hot pressing rollers on the product. Specifically, the width of the gap between the two hot pressing rollers is 80% of the total thickness of the product.

[0073] The temperature of the two hot-pressing rollers is based on the melting point of the hot-melt adhesive on the PET protective film 22, so that the hot-melt adhesive can melt for bonding and lamination. In the present application, the temperature of the two hot-pressing rollers is 140 degrees Celsius to 180 degrees Celsius.

[0074] After the product is hot pressed, the paper bill 10 is packaged and the product needs to be trimmed. The side of the product can be trimmed by die cutting to make it flat. Specifically, it is generally necessary to trim about 2 mm of the side to complete the product.

[0075] When the product needs to be rolled, the product is rolled from the end away from the label 40. After the rolling is completed, the end with the label 40 is located outside the rolled product, so that the basic information of the paper bill 10 can be understood through the label 40. When the product is rolled, the final diameter after rolling can be adjusted as needed to prevent the paper bill from being damaged due to excessive bending.

[0076] The present invention can be implemented in various forms and modifications without departing from the broad spirit and scope of the present invention. The above-described embodiments are intended to illustrate the invention, but are not intended to limit the scope of the present invention.

Claims

1. A paper bill roll packaging process, characterized in that: The following steps are involved: Cut the PET protective film with hot melt adhesive and the silicone protective film according to the size of the paper bill; Printing an anti-counterfeiting mark at a corresponding position of the adhesive surface of the PET protective film; Place one side of the paper bill on the bonding surface of one of the silicone protective films, and then bond the other side of the paper bill through the other silicone protective film; the adhesive surfaces of the two PET protective films are bonded to the outer sides of the two silicone protective films respectively; The paper bill with the silicone protective film and the PET protective film attached thereto is hot pressed in one direction by means of double-roll hot pressing; the two hot pressing rollers heat the PET protective film, and the hot melt adhesive is melted by the heat, so that the portions where the edges of the two PET protective films are attached together are bonded together by the hot melt adhesive and cannot be separated; Trimming the edges of the products after hot pressing; The packaged products are rolled.

2. A paper bill roll packaging process as claimed in claim 1, characterized in that: The single side size of the PET protective film after cutting is 3 cm to 7 cm larger than the corresponding side of the paper bill; The size of a single side of the silicone protective film after cutting is 3 mm to 5 mm larger than the corresponding side of the paper bill.

3. A paper bill roll packaging process as claimed in claim 1, characterized in that: A PE protective film is attached to the outer side of the PET protective film.

4. A paper bill roll packaging process as claimed in claim 1, characterized in that: A reference line is set on the laminating surface of the silicone protective film, and the paper bill is placed at a corresponding position of the silicone protective film through the reference line.

5. A paper bill roll packaging process as claimed in claim 1, characterized in that: A label is attached between the two PET protective films, and the label is located on one side of the paper ticket and at the edge of the product.

6. A paper bill roll packaging structure, characterized in that: The packaging process according to any one of claims 1 to 5, wherein the packaging structure comprises: Two sealing layers attached to both sides of the paper ticket; The packaging layer includes a silicone protective film and a plastic sealing film, the bonding surface of the silicone protective film is attached to one side of the paper bill, and the plastic sealing film is attached to the outer side of the silicone protective film; The edge positions of the two plastic sealing films are in contact with each other.

7. A paper bill roll packaging structure as claimed in claim 6, characterized in that: The plastic sealing film is a PET protective film with hot melt adhesive.

8. A paper bill roll packaging structure as claimed in claim 7, characterized in that: A PE protective film is attached to the outer side of the PET protective film.

9. A paper bill roll packaging structure as claimed in claim 6, characterized in that: A label is also attached between the two PET protective films; and an anti-counterfeiting mark is arranged on the adhesive surface of the plastic sealing film.

Citation Information

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