Degradable kraft paper adhesive tape

Abstract

The utility model relates to the technical field of paper adhesive tapes, in particular to a degradable kraft paper adhesive tape. A degradable kraft paper adhesive tape is composed of a roll core and adhesive tape paper rolled on the roll core, the adhesive tape paper comprises a base material layer and a cementation layer, the cementation layer comprises a rubber matrix thin layer and plasticizing particles dispersed in the rubber matrix thin layer, and the base material layer is in a wrinkle shape. According to the adhesive tape, the design of the degradable cementing layer is adopted, the adhesive tape comprises the rubber matrix thin layer and the plasticizing particles dispersed in the rubber matrix thin layer, so that the adhesive tape can be naturally degraded after being discarded, the pollution to the environment is remarkably reduced, and the adhesive tape conforms to the global environment-friendly and sustainable development trend; the toughness and the tear resistance can be improved by adding reinforcing fibers, meanwhile, the complete degradability of the adhesive tape after use is ensured, and the potential harm to an ecological system is further reduced.

Description

Technical Field

[0001] The present application relates to the technical field of paper tapes, and in particular to a degradable kraft paper tape. Background Art

[0002] Kraft paper tape is a commonly used consumable in the packaging industry. It is widely used due to its excellent adhesive properties and good appearance. Kraft paper tape is not only suitable for closing cartons, but is also often used for bundling and fixing handicrafts, providing convenience for product packaging in various industries. However, with the increasing global awareness of environmental protection, the development of tape that conforms to the concept of green environmental protection has become a research focus of many companies.

[0003] Existing kraft paper tape mainly uses hot melt adhesive as the bonding layer. Although this adhesive has good bonding properties, it puts great pressure on the environment due to its non-degradable nature. In addition, when the existing kraft paper tape is bonded to express seals, it is prone to large-scale joint tearing due to external forces during transportation, and it detaches from the bonding part, resulting in reduced bonding performance, thereby limiting its application in the express packaging field. Utility Model Content

[0004] The present application provides a degradable kraft paper tape, which aims to address the current challenges of kraft paper tape in terms of environmental sustainability, especially the non-degradable adhesive layer and the problem of associated tearing that may occur during use.

[0005] This application provides a degradable kraft paper tape, which adopts the following technical solution:

[0006] A degradable kraft paper tape consists of a reel and tape paper wound on the reel. The tape paper includes a base layer and a bonding layer. The bonding layer includes a rubber matrix layer and plasticized particles dispersed in the rubber matrix layer. The base layer is wrinkled.

[0007] By adopting the above technical solution: the traditional non-degradable hot melt adhesive is no longer used in the bonding layer. Instead, a design is adopted that includes a thin layer of rubber matrix and plasticizer particles dispersed therein. This design allows the bonding layer of the tape to gradually degrade in the natural environment after it is discarded, thereby reducing pollution and long-term impact on the environment, complying with current global requirements for environmental protection and sustainable development. At the same time, the corrugated base material layer can better adapt to different bonding surfaces, effectively reducing the problem of joint tearing that is prone to occur with traditional kraft paper tape.

[0008] Preferably, the substrate layer is composed of a degradable paper layer.

[0009] By adopting the above technical solution: using a degradable paper layer as the base material, it is ensured that the tape can quickly decompose in the natural environment after being discarded, reducing the risk of pollution to ecosystems such as soil and water sources, and complying with the concepts of green packaging and circular economy.

[0010] Preferably, the degradable paper layer is provided with reinforcing fibers for increasing toughness.

[0011] By adopting the above technical solution: the addition of reinforcing fibers not only improves the flexibility of the tape, but also significantly enhances its tear resistance. This means that during use, even when facing complex curved surfaces or delicate operations, the tape can maintain good integrity and bonding effect, thereby improving the durability and user experience of the product.

[0012] Preferably, the surface of the degradable paper layer is provided with an uneven texture.

[0013] By adopting the above technical solution: the uneven texture increases the roughness of the paper layer, allowing the adhesive layer to better bond with the substrate layer, forming a stronger adhesive force. This design helps ensure that the tape is not easy to fall off during the pasting process, improving the reliability and stability of the product;

[0014] For certain applications requiring anti-slip properties, such as sealing packaging boxes and securing handicrafts, the uneven texture can increase friction between the tape and the adherend, reducing the risk of slippage and displacement, thereby providing a more stable bond. Furthermore, when removing the tape, the uneven texture helps reduce slippage between the tape and your fingers, making the process smoother and more comfortable. This design not only enhances the user experience but also helps reduce tape breakage or damage caused by improper operation.

[0015] Furthermore, textured designs can add unique visual effects to tapes, making them more attractive and aesthetically pleasing in product packaging or handicrafts. This personalized design helps meet consumers' diverse demands for product appearance and allows the tape to better adapt to adhered surfaces of varying materials and shapes, including smooth, rough, and curved surfaces. This adaptability enhances the tape's versatility and practicality, enabling it to perform effectively in a variety of application scenarios.

[0016] Preferably, the texture is formed by embossing.

[0017] By adopting the above technical solution: during the embossing process, the paper layer will be compressed and deformed to a certain extent, which helps to enhance the internal structure and strength of the paper layer, so that the embossed paper layer not only has a unique texture, but also has better tear resistance and wear resistance.

[0018] In addition, embossing is a physical process that does not involve the addition and use of chemical substances, so it will not cause pollution to the environment and meets the requirements of environmentally friendly production.

[0019] Preferably, the edge of the tape is provided with a starting portion for marking.

[0020] By adopting the above technical solution: the setting of the starting part enables the user to quickly find the starting point when tearing off the tape, without having to blindly grope on the tape roll, thereby greatly improving the convenience and efficiency of use. This is especially important for those users who need to use tape frequently or quickly stick it in an emergency.

[0021] Preferably, the thickness of the adhesive tape is 130-150 μm.

[0022] By adopting the above technical solution: within this thickness range, the tape paper has sufficient strength to withstand a certain amount of tension and tearing, while maintaining good flexibility and being able to adapt to various complex curved surfaces and pasting requirements. This balance makes the tape not easy to break during use, and can closely adhere to the surface of the adhered object.

[0023] Preferably, the winding core is provided with a storage groove for facilitating the winding of the adhesive tape.

[0024] By adopting the above technical solution: the design of the storage groove enables the tape to be wound on the roll core more tightly and orderly, reducing gaps and misalignments during the winding process, thereby improving the winding efficiency; this not only speeds up production, but also ensures the stability of the tape during storage and transportation, and provides certain support and protection for the edges of the tape, reducing edge damage caused by friction or extrusion during the winding process, which is crucial for maintaining the integrity and aesthetics of the tape, and also helps to extend the service life of the tape.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. This application utilizes a degradable adhesive layer design, comprising a thin rubber matrix layer and dispersed plasticizer particles therein. This allows the tape to naturally degrade after disposal, significantly reducing environmental pollution and aligning with global trends in environmental protection and sustainable development. The base layer is made of degradable paper, and reinforcing fibers are added to enhance toughness and tear resistance. This ensures the tape's complete degradability after use, further reducing potential harm to the ecosystem.

[0027] 2. The corrugated substrate layer design in this application improves the adaptability of the tape to different bonding surfaces, effectively reducing the problem of joint tearing, and ensuring that the tape maintains stability and reliability in various applications. Furthermore, the uneven texture provided on the surface of the degradable paper layer not only enhances the adhesion between the adhesive layer and the substrate layer, but also improves the anti-slip performance and operational feel, making the tape smoother and more stable during application and removal.

[0028] 3. This application provides a starting mark on the edge of the tape, allowing users to quickly find the starting point for tearing off, thereby improving the convenience and efficiency of use. A storage groove is provided on the roll core, allowing the tape to be wound more tightly and orderly, which not only improves the winding efficiency, but also reduces gaps and misalignments during storage and transportation, ensuring the integrity and aesthetics of the tape, while extending the service life of the tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present application;

[0030] Figure 2 This is a schematic diagram of the explosion structure of Example 1 of the present application;

[0031] Figure 3 This is a schematic diagram of the layer structure of the adhesive tape of Example 1 of the present application;

[0032] Figure 4 This is a partially enlarged structural schematic diagram of the tape after being stretched and rolled out in Example 1 of the present application;

[0033] Figure 5 It is a schematic diagram of the overall structure of Example 2 of the present application.

[0034] Figure numerals: 1. winding core; 11. storage slot; 2. adhesive tape; 21. base material layer; 211. reinforcing fiber; 212. texture; 22. adhesive layer; 221. rubber matrix thin layer; 222. plasticized particles; 3. starting part. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-5 This application is described in further detail.

[0036] Example 1

[0037] Example 1 of the present application discloses a degradable kraft paper tape, referring to Figure 1 and Figure 2 , mainly composed of a core 1 and a tape 2 wound on the core 1. The tape 2 is a core component, further divided into a base layer 21 and a bonding layer 22, Figure 3 , the specific structure is as follows:

[0038] The substrate layer 21 is composed of a degradable paper layer, which is a key part of the environmentally friendly characteristics of this tape. In order to enhance the toughness and tear resistance of the paper layer, reinforcing fibers 211 are embedded inside the paper layer. These fibers are tightly combined with the paper layer to form a strong and flexible substrate layer 21.

[0039] The bonding layer 22 is directly attached to the inner side of the base material layer 21. It is composed of a thin layer of rubber matrix 221 and plasticizer particles 222 evenly dispersed therein. This design enables the bonding layer 22 to maintain sufficient bonding strength while also having the ability to gradually degrade in the natural environment, thereby achieving the overall environmental friendliness of the tape.

[0040] In addition, the base material layer 21 is designed to be wrinkled, which helps to increase the contact area between the tape and the adhesive surface, improve the adhesive force, and effectively reduce the risk of joint tearing. Figure 4 On the surface of the degradable paper layer, an uneven texture 212 is formed through an embossing process. These textures 212 not only increase the roughness of the paper layer surface and enhance the bonding strength with the adhesive layer 22, but also give the tape anti-slip and anti-skid properties and enhance the user's operating feel.

[0041] At the same time, the thickness of the tape 2 is precisely controlled at 130 μm, ensuring that the tape has sufficient strength to withstand various operations while maintaining good flexibility for easy pasting on various complex curved surfaces.

[0042] Reference Figure 2 A receiving groove 11 is also provided on the outer surface of the winding core 1, so that the tape paper 2 can be wound more tightly and orderly on the winding core 1 during the winding process, reducing gaps and misalignment, and improving the winding efficiency and storage stability.

[0043] The working process and implementation principle of Example 1 are as follows:

[0044] When the degradable kraft paper tape is needed, the user first tears the tape from the roll core 1 and stretches it to adhere. Due to the pleated design and surface texture 212 of the base material layer 21, the tape can fit tightly on the adhesive surface of various complex curved surfaces and form a strong adhesive force. At the same time, the rubber matrix thin layer 221 and plasticizer particles 222 in the adhesive layer 22 ensure the stability and reliability of the tape during use.

[0045] During use, even when faced with large pulling force and tearing, the tape is not easy to break or damage due to the supporting effect of the reinforcing fibers 211 in the base material layer 21. At the same time, after the pasting is completed, even if it is subjected to a large external force, large-scale joint tearing will not occur and it will not be separated from the bonding part. When the tape is discarded, its degradable adhesive layer 22 and base material layer 21 will be able to gradually decompose in the natural environment, reducing pollution and long-term impact on the environment.

[0046] Example 2

[0047] Example 2 of the present application discloses a degradable kraft paper tape, referring to Figure 4 The only difference from Example 1 is that a starting portion 3 for marking is further installed on the edge of the tape 2, and the starting portion 3 is groove-shaped and symmetrically opened on both side edges of the tape 2.

[0048] The working process and implementation principle of Example 2 are as follows:

[0049] The user first notices the starting mark 3 on the edge of the tape 2. This mark clearly indicates the starting point for tearing off the tape. Then, the user starts tearing off the tape along the starting mark 3. Due to the guiding role of the mark, the tearing process becomes simple and quick, without having to grope blindly on the tape roll.

[0050] After tearing off the desired length of tape, the user can apply it to the target object. Because the tape paper 2 has a pleated design and surface texture 212, it can adhere tightly to various complex curved surfaces and form a strong adhesive force. After the tape is used, its degradable adhesive layer 22 and base layer 21 will gradually decompose in the natural environment, thereby reducing pollution and long-term impact on the environment.

[0051] The above are preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A degradable kraft paper tape, comprising a core (1) and tape paper (2) wound on the core (1), characterized in that: The adhesive tape (2) comprises a base material layer (21) and a bonding layer (22); the bonding layer (22) comprises a rubber matrix thin layer (221) and plasticized particles (222) dispersed in the rubber matrix thin layer (221); and the base material layer (21) is in a wrinkled shape.

2. The degradable kraft paper tape according to claim 1, characterized in that: The substrate layer (21) is composed of a degradable paper layer.

3. The degradable kraft paper tape according to claim 2, characterized in that: Reinforcement fibers (211) for increasing toughness are arranged in the degradable paper layer.

4. The degradable kraft paper tape according to claim 2, characterized in that: The surface of the degradable paper layer is provided with an uneven texture (212).

5. The degradable kraft paper tape according to claim 4, characterized in that: The texture (212) is formed by embossing.

6. The degradable kraft paper tape according to claim 1, characterized in that: The edge of the adhesive tape (2) is provided with a starting portion (3) for marking.

7. The degradable kraft paper tape according to claim 1, characterized in that: The thickness of the adhesive tape (2) is 130-150 μm.

8. The degradable kraft paper tape according to claim 1, characterized in that: The winding core (1) is provided with a receiving groove (11) for facilitating the winding of the adhesive tape (2).

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