Sealing self-adhesion type heat sealing film

Abstract

The utility model relates to the technical field of heat-sealing films, and particularly discloses a seal self-adhesion type heat-sealing film which comprises a heat-sealing film bag, two sides of the heat-sealing film bag are connected and fixed through sealing edges, and a first pressure-sensitive adhesive is fixedly adhered to the outer surface of an ultrathin pressure-sensitive adhesive on one side of the heat-sealing film bag. According to the sealing self-adhesion type heat-sealing film, in the process that an object is put into a heat-sealing film bag, only the easy-to-tear separation strip needs to be torn down, the bag opening is opened, the object to be packaged is put into the heat-sealing film bag, then the heat-sealing film bag is lightly smoothened along the area of the first pressure-sensitive adhesive, the pre-sealing procedure of the heat-sealing film bag can be completed, efficient object bagging can be achieved, and the packaging efficiency is improved. And in the transportation and circulation links, articles in the heat-sealing film bag cannot fall out accidentally, the risk that the articles fall out and are damaged is remarkably reduced, repeated bagging is not needed for the falling-out articles, meanwhile, the bagging process and the heat-sealing process are separated, the continuity of the packaging procedure is optimized, and the overall operation efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of heat-sealing film technology, specifically a self-adhesive heat-sealing film. Background Technology

[0002] In the packaging industry, traditional packaging sealing methods have some limitations. For example, using glue to seal the packaging is a complicated process that requires additional equipment and technology to apply the glue. In addition, the long drying time of the glue will affect the packaging efficiency. Furthermore, the quality and uniformity of the glue application are difficult to control precisely, which may result in an insecure seal or glue overflow, affecting the appearance of the packaging and the quality of the product.

[0003] The emergence of heat-sealing film has solved these problems to some extent. Heat-sealing film melts and bonds the edges of the film by heating, forming a sealed package.

[0004] In the packaging field, traditional heat-sealing film has obvious shortcomings in the process of bulk bagging of goods. When the heat-sealing film is not sealed, there is a lack of effective temporary fixation measures, which makes it easy for the goods to slip when they are put in. This not only increases the complexity of the bagging operation, but may also lead to a significant reduction in packaging efficiency due to repeated adjustments, and there is a risk of damage to the fallen goods. Utility Model Content

[0005] The purpose of this invention is to provide a self-adhesive heat-sealing film to solve the problem mentioned in the background art where the contents are easily dropped during batch bagging, affecting the efficiency of filling and heat sealing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-adhesive heat-sealing film, comprising a heat-sealing film bag, wherein the two sides of the heat-sealing film bag are connected and fixed by sealing edges, an ultra-thin pressure-sensitive adhesive is adhered and fixed inside the heat-sealing film bag, and a first pressure-sensitive adhesive is fixedly pasted on the outer surface of the ultra-thin pressure-sensitive adhesive on one side of the heat-sealing film bag, and an easy-tear separation strip is attached to the outer surface of the first pressure-sensitive adhesive.

[0007] Preferably, one end of the easy-tear separation strip extends out of the interior of the heat-sealed film bag, and the outer surface of the end of the easy-tear separation strip located outside the heat-sealed film bag is provided with an anti-slip surface.

[0008] By adopting the above technical solution, the anti-slip surface of the easy-tear separation strip can effectively reduce the chance of hand slippage when tearing off the easy-tear separation strip, while the easy-tear separation strip extends out of the heat-sealed film bag to make tearing more convenient.

[0009] Preferably, the outer surface of the easy-tear separation strip away from the anti-slip surface is provided with an adhesive surface, and the adhesive surface is in contact with the outer surface of the ultra-thin pressure-sensitive adhesive.

[0010] By adopting the above technical solution, when the ultra-thin pressure-sensitive adhesive is placed inside the heat-sealing film bag through the adhesive surface, it can be ensured that the ultra-thin pressure-sensitive adhesives are aligned with each other, reducing the chance of the ultra-thin pressure-sensitive adhesives shifting.

[0011] Preferably, the outer surface of the sealing edge is provided with extrusion cut marks, and a reinforcing rib is fixedly provided on the side of the ultra-thin pressure-sensitive adhesive near the first pressure-sensitive adhesive, and the reinforcing rib is located below the extrusion cut marks.

[0012] Using the above technical solution, the heat-sealed film bag can be easily torn open by squeezing the cutting marks. At the same time, the design of the reinforcing ribs guides the heat-sealed film bag when it is torn, ensuring a smooth opening when torn along the direction of the reinforcing ribs. The design of the reinforcing ribs also makes it easier to open the opening of the heat-sealed film bag without deformation.

[0013] Preferably, a second pressure-sensitive adhesive group is fixedly attached to the end of the ultra-thin pressure-sensitive adhesive away from the first pressure-sensitive adhesive, and an easy-tear mechanism is provided between the second pressure-sensitive adhesive groups.

[0014] Using the above technical solution, the second pressure-sensitive adhesive adhesive group allows the heat-sealing film bag to be opened and sealed multiple times after the seal is torn open, protecting the items placed inside the heat-sealing film bag. It is also thinner and lighter than traditional sealing strips, and it is easier to seal without the problem of not being able to close properly.

[0015] Preferably, the easy-tear mechanism includes: a first release film, the first release film being attached to one outer surface of a second pressure-sensitive adhesive adhesive group, a second release film being attached to the other side surface of the second pressure-sensitive adhesive adhesive group, a tear-off head being fixedly disposed between the second release film and the first release film, and the outer surface of the tear-off head being roughened, and the height of the tear-off head exceeding the reinforcing rib.

[0016] Using the above technical solution, the first release film and the second release film are designed independently, which effectively prevents the items from sticking to the second pressure-sensitive adhesive group when they are put into the heat-sealed film bag. The first release film and the second release film are fixed by a tear-off head, which can be torn off simultaneously. The tear-off head is higher than the reinforcing rib and the surface is roughened, so that force can be easily applied without opening the bag, which significantly reduces the difficulty of operation and ensures efficient connection between the bagging and tearing steps.

[0017] Preferably, a small adhesive layer is provided on the side of the second pressure-sensitive adhesive adhesive assembly near the tear-off head, and the small adhesive layer is located in the middle section of the second pressure-sensitive adhesive adhesive assembly, while multiple adhesive layers are provided on the outer surfaces of both ends of the second pressure-sensitive adhesive adhesive assembly.

[0018] By adopting the above technical solution, by setting fewer or more adhesive layers on the outer surface of the second pressure-sensitive adhesive adhesive assembly, the second pressure-sensitive adhesive adhesive assembly can be more easily torn from the middle of the heat-sealed film bag, making it easier to open the heat-sealed film bag.

[0019] Compared with the prior art, the beneficial effects of this utility model are: This self-adhesive heat-sealing film has the following advantages:

[0020] 1. When packing items into the heat-sealing film bag, the user only needs to tear off the easy-tear separation strip and open the bag opening, place the items to be packaged into the inside of the heat-sealing film bag, and then gently smooth the heat-sealing film bag along the area of ​​the first pressure-sensitive adhesive to complete the pre-sealing process of the heat-sealing film bag. This can achieve efficient item packing, and the items inside the heat-sealing film bag will not fall out during subsequent transportation and circulation, significantly reducing the risk of damage due to items falling out. At the same time, separating the packing and heat-sealing processes not only optimizes the continuity of the packaging process, but also greatly improves the overall work efficiency.

[0021] 2. The design of the adhesive surface allows the ultra-thin pressure-sensitive adhesive to be placed inside the heat-sealing film bag and pasted. The ultra-thin pressure-sensitive adhesives can be positioned without shifting their positions, ensuring the alignment of the second pressure-sensitive adhesive pasting group after pasting. In addition, the protruding design of the easy-tear separation strip and the anti-slip surface make it easier to tear off the easy-tear separation strip, which can improve the continuity and efficiency of bagging.

[0022] 3. When sealing the heat-sealable film bag, the ultra-thin pressure-sensitive adhesive and the first pressure-sensitive adhesive can be heated simultaneously by the sealing machine, so that the first pressure-sensitive adhesive, the ultra-thin pressure-sensitive adhesive and the first pressure-sensitive adhesive can be heated at the same time and melt together. When tearing, the heat-sealable film bag and the sealing edge can be torn apart by squeezing the cutting marks. The reinforcing ribs guide the heat-sealable film bag to be torn more smoothly and perfectly. At the same time, the support of the reinforcing ribs makes the heat-sealable film bag less prone to deformation after opening, and it is easier to put items into the heat-sealable film bag.

[0023] 4. After the user tears open the heat-sealable bag by squeezing the cut lines, the tear-off head will be exposed, and the heat-sealable bag will be open, making it easy to take out the contents. If the contents cannot be used up at once, simply pinch the tear-off head and pull to tear off the first and second release films at the same time, allowing the second pressure-sensitive adhesive assembly to adhere to each other. The design of the first and second release films ensures that the second pressure-sensitive adhesive assembly is not affected when sealing or when filling the bag with contents. Compared to traditional sealing designs, the second pressure-sensitive adhesive assembly is thinner and lighter, and it is convenient to reseal the heat-sealable bag with the second pressure-sensitive adhesive assembly when the contents are not used up. It is also convenient to use multiple times.

[0024] 5. By using the small and large adhesive layers inside the second pressure-sensitive adhesive adhesive assembly, the heat-sealable film bag can be easily torn apart from the small adhesive layer when it is opened, reducing the difficulty of opening the heat-sealable film bag, while also ensuring the sealing strength of the heat-sealable film bag, ensuring that external dust or gas will not enter the interior of the heat-sealable film bag. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the heat-sealing film and the extrusion cutting marks of this utility model;

[0026] Figure 2 This is a cross-sectional three-dimensional structural diagram of the heat-sealing film and ultra-thin pressure-sensitive adhesive of this utility model;

[0027] Figure 3 This is a schematic diagram of the three-dimensional structure of the ultra-thin pressure-sensitive adhesive and reinforcing ribs of this utility model;

[0028] Figure 4 This is a three-dimensional exploded view of the first pressure-sensitive adhesive and the adhesive surface of this utility model;

[0029] Figure 5 This is an exploded three-dimensional structural diagram of the ultra-thin pressure-sensitive adhesive and the second pressure-sensitive adhesive bonding assembly of this utility model;

[0030] Figure 6 This is a schematic diagram of the three-dimensional structure of the present invention with fewer adhesive layers and more adhesive layers.

[0031] In the diagram: 1. Heat-sealed film bag; 2. Edge sealing; 3. Extrusion and cutting marks; 4. Ultra-thin pressure-sensitive adhesive; 5. Reinforcing rib; 6. First pressure-sensitive adhesive; 7. Easy-tear release strip; 8. Anti-slip surface; 9. Adhesive surface; 10. Second pressure-sensitive adhesive bonding assembly; 11. First release film; 12. Second release film; 13. Tear-off head; 14. Fewer adhesive layers; 15. More adhesive layers. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figure 1-6This utility model provides a technical solution: a self-adhesive heat-sealing film, including a heat-sealing film bag 1, the two sides of the heat-sealing film bag 1 are connected and fixed by sealing edge 2, an ultra-thin pressure-sensitive adhesive 4 is adhered and fixed inside the heat-sealing film bag 1, a first pressure-sensitive adhesive 6 is fixedly pasted on the outer surface of the ultra-thin pressure-sensitive adhesive 4 on one side of the heat-sealing film bag 1, and an easy-tear separation strip 7 is attached to the outer surface of the first pressure-sensitive adhesive 6.

[0034] In practice, users only need to gently tear off the easy-tear separation strip 7, quickly place the items to be packaged into the heat-sealing film bag 1, and then gently smooth the heat-sealing film bag 1 along the area of ​​the first pressure-sensitive adhesive 6 to instantly complete the pre-sealing process. This achieves efficient batch bagging of items, and even in subsequent transportation and circulation, the items inside the bag can be firmly locked, significantly reducing the risk of damage caused by falling out. Then, heat sealing melts and bonds the heat-sealing film bag 1 and the first pressure-sensitive adhesive 6 together. By separating the bagging and heat-sealing processes, not only is the continuity of the packaging process optimized, but the overall operational efficiency is also greatly improved.

[0035] One end of the easy-tear separation strip 7 extends out of the interior of the heat-sealed film bag 1, and the outer surface of the end of the easy-tear separation strip 7 located outside the heat-sealed film bag 1 is provided with an anti-slip surface 8.

[0036] The easy-tear separating strip 7 has a specially designed anti-slip surface 8 on its outer surface, which significantly reduces the probability of the user's hand slipping during the tearing process by increasing surface friction. In addition, one end of the easy-tear separating strip 7 extends beyond the edge of the heat-sealed film bag 1. This ingenious extension design allows the user to easily grasp and apply force precisely, greatly improving the convenience of the tearing operation. Even in the case of rapid packaging operations, it can achieve efficient and easy separation operations.

[0037] The outer surface of the easy-tear separation strip 7 away from the anti-slip surface 8 is provided with an adhesive surface 9, and the adhesive surface 9 is attached to the outer surface of the ultra-thin pressure-sensitive adhesive 4.

[0038] With the precise positioning and pasting design of the adhesive surface 9, the ultra-thin pressure-sensitive adhesive 4 can be quickly and accurately aligned when it is placed inside the heat-sealing film bag 1, thanks to the positioning reference preset by the adhesive surface 9. This directional pasting mechanism effectively restricts the displacement freedom of the ultra-thin pressure-sensitive adhesive 4, ensuring that the positions of the ultra-thin pressure-sensitive adhesive 4 will not shift during pasting, thus laying a solid foundation for the sealing performance and reliability of the heat-sealing film bag 1.

[0039] The outer surface of the edge seal 2 is pressed with an extrusion cut mark 3. The ultra-thin pressure-sensitive adhesive 4 is fixedly provided with a reinforcing rib 5 on the side close to the first pressure-sensitive adhesive 6, and the reinforcing rib 5 is located below the extrusion cut mark 3.

[0040] The heat-sealable film bag 1 has extrusion cut marks 3 on its surface. Users only need to apply slight external force to easily tear the heat-sealable film bag 1 and the sealing edge 2 along the extrusion cut marks 3. At the same time, the reinforcing ribs 5 not only provide guidance for the tearing process, guiding the tearing direction to extend along the preset path, ensuring that the opening is flat and regular, avoiding rough edges or irregular tears, but also effectively enhance the structural strength of the bag opening, so that the heat-sealable film bag 1 maintains its shape stability when opened and is not easily deformed by external force, greatly improving the convenience of opening the packaging and the user experience.

[0041] The end of the ultra-thin pressure-sensitive adhesive 4 away from the first pressure-sensitive adhesive 6 is fixedly attached to a second pressure-sensitive adhesive adhesive group 10, and an easy-tear mechanism is provided between the second pressure-sensitive adhesive adhesive groups 10.

[0042] After the heat-sealable film bag 1 is opened, the second pressure-sensitive adhesive assembly 10, with its unique reusable adhesive design, can achieve multiple opening and closing seals. Each time it is sealed, the second pressure-sensitive adhesive assembly 10 can be tightly adhered, ensuring the airtightness of the inside of the heat-sealable film bag 1. This not only makes it convenient for users to take out items as needed, but also effectively prevents external dust and moisture from entering, providing long-lasting protection for the product and significantly improving the practicality and durability of the packaging. Moreover, it is thinner and lighter than traditional sealing strips.

[0043] The easy-tear mechanism includes: a first release film 11, which is attached to one outer surface of the second pressure-sensitive adhesive adhesive assembly 10; a second release film 12 is attached to the side surface of the other second pressure-sensitive adhesive adhesive assembly 10; a tear-off head 13 is fixedly provided between the second release film 12 and the first release film 11; the outer surface of the tear-off head 13 is rough, and the height of the tear-off head 13 exceeds the reinforcing rib 5.

[0044] The separate design of the first release film 11 and the second release film 12 prevents the items from coming into contact with the second pressure-sensitive adhesive assembly 10 when placed inside the heat-sealed bag 1. The fixation of the first release film 11 and the second release film 12 to the tear-off head 13 allows the first release film 11 and the second release film 12 to be torn off simultaneously. Furthermore, the height of the tear-off head 13 exceeds the reinforcing rib 5 and the rough design of the surface of the tear-off head 13, making it easier to tear off the second release film 12 and the first release film 11 without having to pry open the opening of the heat-sealed bag 1. This reduces the difficulty of tearing off the second release film 12 and the first release film 11 without affecting the placement of items into the heat-sealed bag 1.

[0045] The second pressure-sensitive adhesive adhesive assembly 10 has a small adhesive layer 14 on the side near the tear-off head 13, and the small adhesive layer 14 is located in the middle section of the second pressure-sensitive adhesive adhesive assembly 10. The outer surfaces of both ends of the second pressure-sensitive adhesive adhesive assembly 10 are provided with multiple adhesive layers 15.

[0046] The combination of fewer adhesive layers 14 and more adhesive layers 15 makes it easier to tear the seal from the middle when using the second pressure-sensitive adhesive adhesive assembly 10, reducing the difficulty of opening the heat-sealed film bag 1 and making it easier to separate the second pressure-sensitive adhesive adhesive assembly 10.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-adhesive heat-sealing film, comprising a heat-sealing film bag (1), wherein the two sides of the heat-sealing film bag (1) are connected and fixed by sealing edges (2), and an ultra-thin pressure-sensitive adhesive (4) is adhered and fixed inside the heat-sealing film bag (1), characterized in that: The outer surface of the ultra-thin pressure-sensitive adhesive (4) on one side of the heat-sealed film bag (1) is fixedly pasted with a first pressure-sensitive adhesive (6), and an easy-tear separation strip (7) is attached to the outer surface of the first pressure-sensitive adhesive (6).

2. The self-adhesive heat-sealing film according to claim 1, characterized in that: One end of the easy-tear separation strip (7) extends out of the interior of the heat-sealed film bag (1), and the outer surface of the end of the easy-tear separation strip (7) located outside the heat-sealed film bag (1) is provided with an anti-slip surface (8).

3. The self-adhesive heat-sealing film according to claim 1, characterized in that: The easy-tear separation strip (7) has an adhesive surface (9) on the outer surface away from the anti-slip surface (8), and the adhesive surface (9) is in contact with the outer surface of the ultra-thin pressure-sensitive adhesive (4).

4. The self-adhesive heat-sealing film according to claim 1, characterized in that: The outer surface of the sealing edge (2) is pressed with extrusion cut marks (3), and the ultra-thin pressure-sensitive adhesive (4) is fixedly provided with reinforcing ribs (5) on the side close to the first pressure-sensitive adhesive (6), and the reinforcing ribs (5) are located below the extrusion cut marks (3).

5. The self-adhesive heat-sealing film according to claim 1, characterized in that: The end of the ultra-thin pressure-sensitive adhesive (4) away from the first pressure-sensitive adhesive (6) is fixedly attached to a second pressure-sensitive adhesive adhesive group (10), and an easy-tear mechanism is provided between the second pressure-sensitive adhesive adhesive groups (10).

6. The self-adhesive heat-sealing film according to claim 5, characterized in that: The easy-tear mechanism includes: a first release film (11), which is attached to one outer surface of a second pressure-sensitive adhesive adhesive assembly (10), and a second release film (12) is attached to the other side surface of the second pressure-sensitive adhesive adhesive assembly (10). A tear-off head (13) is fixedly provided between the second release film (12) and the first release film (11), and the outer surface of the tear-off head (13) is rough, and the height of the tear-off head (13) exceeds that of the reinforcing rib (5).

7. The self-adhesive heat-sealing film according to claim 6, characterized in that: The second pressure-sensitive adhesive adhesive assembly (10) has a small adhesive layer (14) on the side near the tear head (13), and the small adhesive layer (14) is located in the middle section of the second pressure-sensitive adhesive adhesive assembly (10). The outer surfaces of both ends of the second pressure-sensitive adhesive adhesive assembly (10) are provided with multiple adhesive layers (15).

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