Traceable combined type cotton sealing glue packaging film
By designing a tear-off line and sealing tape structure on the cotton baling film, combined with electronic tags and information traceability chips, the problems of weak adhesion of the cotton baling film and difficulty in breaking the units are solved, achieving rapid separation and tight sealing, and reducing production costs.
Patent Information
- Application Number
- CN202520434850.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing cotton baling films have problems such as poor adhesion and difficulty in separating units during the production process, which leads to automatic baling failure. In addition, the production process is complex and costly.
Design a traceable modular cotton sealing film, which adopts a breakpoint tear line and sealing tape structure, combined with electronic tags and information traceability chips, to ensure rapid separation between film units and tight sealing.
It enables rapid separation of the film roll unit, reduces production costs, simplifies the production process, and improves the sealing strength and traceability.
Smart Images

Figure CN223765121U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging materials technology, and in particular to a traceable, modular cotton sealing adhesive packaging film that can be used for continuous packaging of cotton. Background Technology
[0002] In existing technologies, spiral wrapping film is used in the packaging of harvested agricultural materials. It can be automated using automatic packaging machinery. Currently, the conventional packaging operation for cotton, silage, etc., involves using a film roll from a roller to wrap the material. The end of the film roll must be bonded to the underlying film layer to securely wrap the item. For example, during the operation of a cotton harvester, cotton is ultimately wrapped and packaged after being wound with the film.
[0003] In the current cotton baling film production process, the baling film needs to be made by laminating two different films together and then applying an adhesive in between. Each adjacent packaging unit requires a combination of double-sided adhesive and a release liner to separate. This process is complex, inefficient, and prone to adhesive detachment. During automatic winding, problems such as film jamming, film breakage, separation at one end while the other sticks, and inability to separate quickly occur, leading to machine downtime and automatic baling failure. Therefore, there is a need to design a cotton baling film that is simple in structure, has a strong adhesive bond, and is highly practical. Summary of the Invention
[0004] The purpose of this utility model is to provide a traceable, modular cotton sealing adhesive packaging film with a simple structure that can solve problems such as poor adhesion and difficulty in separating units during continuous automatic packaging. It increases the tightness and firmness of the material package sealing, facilitates the separation of packaging roll film units, prevents adhesion, and effectively reduces production costs and simplifies production process steps.
[0005] This utility model discloses a traceable combined cotton sealing adhesive packaging film, including a base film roll, which comprises multiple film roll units. The film roll units are connected by tear lines with breaks, forming a continuous integral roll. Each tear line has a sealing tape structure at a corresponding position. On the front of each film roll unit, there are horizontally arranged adhesive and non-adhesive areas. The ends of the adhesive and non-adhesive areas are all set with oblique lines. An electronic tag is attached to the end of the adhesive area of each film roll unit for identification and separation. Multiple information traceability chips are spaced apart in the non-adhesive area of each film roll unit.
[0006] The sealing tape structure mainly includes a strip-shaped release film. Two adhesive areas, namely adhesive area A and adhesive area B, are longitudinally arranged on the upper surface of the release film. Both adhesive areas A and B are attached to the release film. Adhesive area A is attached to the front side of the release film, and adhesive area B is attached to the back side of the release film. A spacer is provided between adhesive areas A and B, so that adhesive areas A and B are spaced a certain distance apart. When adhesive area A and the attached release film portion are folded upwards by 180 degrees, they can be arranged in a parallel state with adhesive area B and the attached release film portion, and adhesive areas A and B are located on the same side of the release film.
[0007] Preferably, the adhesive area is longer than the non-adhesive area. The information traceability chip is 3.5m away from the tear line, and the spacing between adjacent information traceability chips is 1.7m. The adhesive area of the sealing tape structure refers to double-sided adhesive with a certain thickness, or a thin film of double-sided adhesive. The width of adhesive area A of the sealing tape structure is 170mm, and the width of adhesive area B is 50mm. The length of the strip-shaped release film of the sealing tape structure is adapted to the width of the substrate roll film. The material of the release film of the sealing tape structure is PET plastic.
[0008] The traceable combined cotton sealing adhesive packaging film provided by this utility model has an adhesive zone that is longer than the non-adhesive zone, which improves the firmness of the film rolling process. The ends of both the adhesive and non-adhesive zones are set with oblique tangents, which shortens the width of the film ends. This overcomes the shortcomings of a wider film roll unit, where one end separates while the other end sticks when the roll unit is separated during the movement of the locomotive. In addition, the roll units are connected by a tear line with a breakpoint. This allows the packaged material to be pulled apart by the pulling force generated by the rotational inertia at the end of a packaging cycle, thus achieving the purpose of rapid separation.
[0009] In addition, an electronic tag is attached to the end of the adhesive area of each film-winding unit, which can be used for identification and separation between film-winding units using electronic identification technology. Multiple information traceability chips are spaced apart in the non-adhesive area of each film-winding unit to prevent individual information traceability chips from falling off and becoming ineffective in reading traceability information.
[0010] The sealing tape structure provided by this utility model has two adhesive areas, namely adhesive area A and adhesive area B, on the surface of the release film, located on the front and back sides of the release film respectively. During the production process, the cutting width of adhesive areas A and B is determined according to the width of the roll film, and the tape is cut to form a separable adhesive tape for connecting roll film units. During connection, adhesive area A is pasted below the end of one roll film unit, and adhesive area B, folded upwards, is pasted below the end of the next roll film unit. The break line between the two roll film units is aligned with the spacer tape position, thus quickly attaching the double-sided adhesive to the two adjacent ends of the roll film units.
[0011] This utility model of sealing tape is designed as a two-section structure, one wide and one narrow. When the film roll unit is separated, the wide part, namely the A adhesive section, remains on the film roll unit that is being packaged, completing the sealing of the material package and ensuring the tightness of the seal; the narrow part, namely the B adhesive section, remains on the next film roll unit. Using this utility model of sealing tape structure, the structure is relatively simple, reducing production costs and simplifying the production process.
[0012] Compared with the prior art, the advantages of this utility model are that the structure is more reasonable, effectively reducing production costs. By using the structure with oblique slits and discontinuous tear lines between the film roll units, it is not easy for the materials to stick together during the packaging process. The tensile force generated by the rotational inertia of the packaged materials makes it easy to pull apart and can be quickly separated. The sealing tape structure makes the material package tightly and firmly sealed. It is an economical, practical, traceable, combined cotton sealing film. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the continuous film winding unit in an embodiment of the present invention.
[0014] Figure 2 This is a schematic diagram of the structure of the packaged roll in an embodiment of this utility model.
[0015] Figure 3 This is a schematic diagram of the sealing tape structure of this utility model.
[0016] Figure 4 for Figure 3 Schematic diagram of cross-sectional structure in the CC direction.
[0017] Figure 5 This is a schematic diagram of the usage state of the film roll unit after the film roll unit is connected to each other by the sealing tape structure in Example 1.
[0018] Figure 6 for Figure 5 A schematic diagram of the enlarged portion of the structure.
[0019] In the diagram: 1 is the non-adhesive area, 2 is the adhesive area, 3 is the electronic tag, 4 is the diagonal cut line, 5 is the tear line, 6 is the sealing tape structure, 7 is the roll film unit, 8 is the information traceability chip, 9 is the roll film, and 10 is the packaging roll; 6-1 is the A adhesive area, 6-2 is the B adhesive area, 6-3 is the spacer tape, and 6-4 is the release film. Detailed Implementation
[0020] The technical solutions of the present utility model embodiments will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.
[0021] Example 1:
[0022] Reference Figures 1-6 This is a structural schematic diagram of an embodiment of the present invention. A traceable combined cotton sealing adhesive packaging film includes a substrate roll film, which comprises multiple roll film units 7. The roll film units are connected to each other by tear lines 5, forming a continuous integral roll. Each tear line 5 has a corresponding sealing tape structure 6. On the front of each roll film unit 7, there are horizontally arranged adhesive areas 2 and non-adhesive areas 1. The ends of the adhesive areas 2 and non-adhesive areas 1 are all set with oblique tangent lines 4. An electronic tag 3 is attached to the end of the adhesive area of each roll film unit 7 for identification and separation. Multiple information traceability chips 8 are spaced apart in the non-adhesive area of each roll film unit 7.
[0023] The sealing tape structure 6 mainly includes a strip-shaped release film 6-4. Two adhesive areas, namely adhesive area A 6-1 and adhesive area B 6-2, are longitudinally arranged on the upper surface of the release film 6-4. Adhesive area A 6-1 and adhesive area B 6-2 are both attached to the release film 6-4. Adhesive area A 6-1 is attached to the front side of the release film 6-4, and adhesive area B 6-2 is attached to the back side of the release film 6-4. A spacer 6-3 is provided between adhesive area A 6-1 and adhesive area B 6-2, so that adhesive area A 6-1 and adhesive area B 6-2 are spaced a certain distance apart. When adhesive area A 6-1 and the attached release film portion are folded upwards by 180 degrees, they can be arranged in a parallel state with adhesive area B 6-2 and the attached release film portion, and adhesive area A 6-1 and adhesive area B 6-2 are located on the same side of the release film.
[0024] The length of the viscous region 2 is longer than that of the non-viscous region 1.
[0025] The adhesive area of the sealing tape structure 6 refers to double-sided adhesive with a certain thickness, or a thin film of double-sided adhesive. The length of the strip-shaped release film of the sealing tape structure 6 is adapted to the width of the substrate roll film. The material of the release film of the sealing tape structure 6 is PET plastic.
[0026] Example 2:
[0027] Compared to Example 1, the difference in this example is that the distance between the information traceability chip and the tear line is 3.5m, and the interval between adjacent information traceability chips is 1.7m. The width of the A adhesive area 6-1 of the sealing tape structure is 170mm, and the width of the B adhesive area 6-2 is 50mm.
[0028] The above are merely specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the above specific embodiments. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of protection of the claims.
Claims
1. A traceable combined cotton sealant bagging film comprising a base substrate film, characterized in that The substrate roll film comprises a plurality of roll film units, the roll film units are connected by the breakable tear lines, forming a continuous whole roll; each breakable tear line is provided with a sealing tape structure at a corresponding position; the front surface of each roll film unit is provided with an adhesive area and a non-adhesive area in the transverse direction, the end of the adhesive area and the non-adhesive area is provided as a bevel, an electronic tag is attached to the end of the adhesive area of each roll film unit for identification separation; a plurality of information tracing chips are arranged in the non-adhesive area of each roll film unit; The sealing tape structure mainly comprises a strip-shaped release film, two adhesive areas, i.e., an A adhesive area and a B adhesive area, are arranged on the upper surface of the release film in the longitudinal direction, the A adhesive area and the B adhesive area are attached to the release film, the A adhesive area is attached to the front surface of the release film, the B adhesive area is attached to the back surface of the release film, a spacing belt is arranged between the A adhesive area and the B adhesive area, so that the A adhesive area and the B adhesive area are spaced apart by a certain distance, when the A adhesive area and the attached part of the release film are folded upward by 180 degrees, the B adhesive area and the attached part of the release film can be arranged in a parallel state, and the A adhesive area and the B adhesive area are located on the same side of the release film.
2. The traceable combination cotton sealing and packing film according to claim 1, characterized in that The length of the adhesive area is longer than that of the non-adhesive area.
3. The traceable combination cotton sealing and lamination film according to claim 1 or 2, characterized in that The distance between the information tracing chip and the breakable tear line is 3.5 m, and the interval distance between adjacent information tracing chips is 1.7 m.
4. The traceable combination cotton sealing and packing film according to claim 1 or 2, characterized in that The adhesive area of the sealing tape structure refers to double-sided adhesive with a certain thickness or thin film-shaped double-sided adhesive.
5. The traceable combination cotton sealing and packing film according to claim 3, characterized in that The adhesive area of the sealing tape structure refers to double-sided adhesive with a certain thickness or thin film-shaped double-sided adhesive.
6. The traceable combination cotton sealant bagging film according to claim 1 or 2, wherein The width of the A adhesive area of the sealing tape structure is 170 mm, and the width of the B adhesive area is 50 mm.
7. The traceable combination cotton sealant bagging film of claim 5, wherein The width of the A adhesive area of the sealing tape structure is 170 mm, and the width of the B adhesive area is 50 mm.
8. The traceable combination cotton closure gum packing film according to claim 1 or 2, characterized in that The length of the strip-shaped release film of the sealing tape structure is adapted to the width of the substrate roll film.
9. The traceable combination cotton sealant bagging film of claim 7, wherein The length of the strip-shaped release film of the sealing tape structure is adapted to the width of the substrate roll film.
10. The traceable combination cotton closure adhesive packing film according to claim 9, characterized in that The material of the release film of the sealing tape structure is PET plastic.