Flexible paperboard for packaging

By combining flexible paper sheets with cushioning cardboard, the problem of the inability of honeycomb cardboard to bend is solved, enabling tight packaging and all-round protection for products with complex shapes, and improving the stability and shock resistance of the packaging.

CN223703696UActive Publication Date: 2025-12-23WENZHOU OUHAI PAPER PACKAGING CO LTD
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Patent Information

Application Number
CN202520198671.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2025-12-23
Estimated Expiration
2035-02-08

AI Technical Summary

Technical Problem

Because of its high rigidity, honeycomb paperboard is difficult to bend and cannot tightly fit the curved or irregular shape of the product, resulting in loose packaging, affecting the protective effect, and it is prone to paper jams in automated packaging equipment, reducing production efficiency.

Method used

It uses long strips of flexible paper and cushioning cardboard (such as corrugated cardboard or honeycomb cardboard) together. The cushioning cardboard is arranged along the length of the flexible paper and fixed by wrapping part and double-sided tape. Filler strips fill the gaps to enhance the structural stability.

Benefits of technology

This enables flexible cardboard to fit tightly to products with complex shapes, providing all-round shock protection, improving packaging stability, preventing loosening and weak points in protection, and enhancing packaging efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a flexible paperboard for packaging, which comprises a strip-shaped flexible paper sheet and a plurality of buffer paperboards, the buffer paperboards are arranged on the upper side surface of the flexible paper sheet along the width of the flexible paper sheet, and the buffer paperboards are arranged along the length of the flexible paper sheet. One end of the lower side surface of the wrapping part is connected with the flexible paper sheet, the other end of the lower side surface of the wrapping part is provided with a double-sided tape, and filling strips are distributed at intervals. The adjacent buffer paperboards are in contact, the flexible paper sheets and the wrapping part are integrated, a flexible reinforcing layer made of PP plastic is arranged, the lengths of the buffer paperboards and the filling strips are equal to the width of the flexible paper sheets, and the buffer paperboards can be corrugated or honeycomb paperboards. By the adoption of the design, the advantages are shown completely. The flexible paper sheet can be bent according to the shape of a product, is adaptive to irregular products, breaks through the traditional limitation and is wide in application; the buffering paperboards are high in shock resistance, and the multiple buffering paperboards cooperatively buffer external force; the wrapping part and the double-sided tape are stably packaged and are prevented from loosening; the filling strips are used for filling gaps, dispersing impact, preventing displacement and improving protection, the market competitiveness is extremely high, and the application prospect is wide.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the packaging technical field, concretely relates to a flexible paperboard for packaging. BACKGROUND

[0002] In the modern packaging field, with the increasing variety of products and the increasingly complex transportation environment, the performance requirements for packaging materials are also increasingly high. As a widely used packaging material, honeycomb paperboard exhibits many excellent properties due to its unique honeycomb structure. The honeycomb structure is composed of a large number of hexagonal honeycomb units connected to each other. This structure endows the honeycomb paperboard with excellent mechanical properties, enabling it to withstand large pressure and impact force, providing reliable protection for the packaged products and effectively reducing the risk of damage to the products during handling and transportation due to collision and extrusion.

[0003] However, in actual packaging application scenarios, the limitations of honeycomb paperboard gradually become apparent. On the one hand, products come in various shapes, many of which have curved surfaces or irregular shapes, such as various bottle-shaped cosmetics, cylindrical electronic products, and some handicrafts with arc surfaces. When using honeycomb paperboard to package these products, due to its relatively fixed structural strength, the honeycomb paperboard has a high rigidity and is difficult to deform. This results in the honeycomb paperboard being unable to closely fit the curved surface of the product and unable to bend and wrap along the contour of the product, making it difficult to achieve full-range and close-fitting protection for the product.

[0004] On the other hand, during the packaging process, this inability to bend also brings inconvenience to automated packaging production lines. Honeycomb paperboard that cannot be flexibly bent is prone to paper jamming and uneven packaging when passing through some automated packaging equipment, reducing packaging efficiency and increasing production costs. Therefore, developing a flexible paperboard for packaging that not only has good shock-absorbing performance similar to honeycomb paperboard but also overcomes the defect of being unable to bend has become a key technical problem that needs to be solved in the current packaging industry. SUMMARY

[0005] To address the problems identified in the background art, the utility model provides a flexible paperboard for packaging to solve the above technical problems.

[0006] The technical solution of the utility model is as follows:

[0007] A flexible paperboard for packaging, comprising a long strip-shaped flexible paper sheet, further comprising a long strip-shaped buffer paperboard, the buffer paperboard is arranged on the upper side of the flexible paper sheet, the buffer paperboard is arranged along the width direction of the flexible paper sheet, the buffer paperboard is provided with a plurality of buffer paperboards arranged along the length direction of the flexible paper sheet, and the flexible paper sheet extends a wrapping part along the length direction.

[0008] The utility model further provides for, the double sided tape is equipped on the downside of the package part, one end of the package part is connected with the flexible paper sheet, and the double sided tape is arranged at the other end of the package part.

[0009] The utility model further provides for, the filling strip is equipped on the downside of the package part, the filling strip is equipped with a plurality, and a plurality of filling strips are arranged at the length direction interval of the package part.

[0010] The utility model further provides for, the adjacent buffer paperboard is contact setting.

[0011] The utility model further provides for, the flexible paper sheet and the package part are integrally arranged.

[0012] The utility model further provides for, the flexible paper sheet and the package part are integrally arranged.

[0013] The utility model further provides for, the flexible reinforcing layer is made of PP plastic.

[0014] The utility model further provides for, the length of the buffer paperboard and the filling strip is equal to the width of the flexible paper sheet.

[0015] The utility model further provides for, the buffer paperboard is corrugated paperboard.

[0016] The utility model further provides for, the buffer paperboard is honeycomb paperboard.

[0017] Adopted above-mentioned technical scheme, the beneficial effects of the utility model are as follows:

[0018] First, flexible and strong adaptability. The flexible paper sheet of long strip shape can be flexibly bent according to the shape of product, can tightly wrap various irregular shape products such as curved cosmetic products, columnar electronic products, change the drawbacks that traditional honeycomb paperboard cannot bend and adhere to product, provide personalized, adhering type preliminary protection for product, greatly expand the range of applicable products.

[0019] Second, excellent buffer shock resistance. The buffer paperboard adopts corrugated paperboard or honeycomb paperboard material, and the structure can effectively absorb and disperse impact force. Multiple buffer paperboards are arranged along the flexible paper sheet, and no matter product encounters collision, extrusion in carrying, transportation, can buffer external force from multiple directions, and product safety is effectively protected.

[0020] Third, stable packaging structure. The design of the package part is ingenious, on the one hand, it reversely wraps the buffer paperboard, and preliminarily limits the displacement of the buffer paperboard, on the other hand, the double sided tape of the downside of the package part can bond the end and the buffer paperboard, completely eliminate the risk of loosening, and ensure that the package is always stable in the complex logistics process.

[0021] Fourth, the gap filling reinforcement protection. The filling strip is made of material with good mechanical properties and is distributed along the wrapping part, which precisely fills the gap between adjacent buffer paperboards, making the buffer structure more continuous and compact. This not only avoids the weak point of protection, but also evenly disperses the impact force to the buffer paperboard to be absorbed, and supports the buffer paperboard from the side to prevent shaking displacement, and comprehensively improves the protection of the product, enhances the competitiveness of the flexible paperboard in the packaging market, and is expected to be widely used in various industries packaging field. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, a brief introduction will be given below to the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0023] Figure 1 Structure diagram of the present application Figure 1 .

[0024] Figure 2 Exploded view of the present application

[0025] Figure 3 Structure diagram of the present application Figure 2 .

[0026] Figure 4 Use state diagram of the present application

[0027] Label explanation in the drawings: flexible paper sheet 1, buffer paperboard 2, wrapping part 3, double-sided tape 4, filling strip 5. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0029] The following references Figures 1-4 The present application is described as follows:

[0030] Embodiment: A flexible paperboard for packaging, comprising a long strip-shaped flexible paper sheet 1 serving as a basic wrapping component, in a long strip shape and having good flexibility, which enables it to deform when under stress to adapt to the surface profile of products of different shapes. Its length direction is the main direction of extension, and in the operation of wrapping the product, the lower side of the flexible paper sheet 1 directly contacts the product and is bent to wrap along the contour of the product. This deformation capability breaks the limitation of traditional honeycomb paperboard, which is rigid and cannot be bent, and can closely fit products with curved surfaces or irregular shapes, such as various bottle-shaped cosmetics, columnar electronic products, and arc-shaped surface handicrafts, etc., to provide preliminary close-fitting protection for the products.

[0031] It also comprises a long strip-shaped buffer paperboard 2, which is corrugated paperboard or honeycomb paperboard, both of which have certain structural characteristics and can effectively absorb and disperse external impact forces to protect the products in the package from collision and extrusion during handling and transportation.

[0032] The buffer paperboard 2 is arranged on the upper side of the flexible paper sheet 1, and the buffer paperboard 2 is arranged along the width direction of the flexible paper sheet 1. The buffer paperboard 2 is provided in multiple, and the multiple buffer paperboards 2 are arranged along the length direction of the flexible paper sheet 1. During the process of wrapping the product with the flexible paper sheet 1 and bending deformation, the buffer paperboard 2 is not fixed and can move with the movement of the flexible paper sheet 1. Due to the irregularity of the product shape, the flexible paper sheet 1 will be stretched and twisted to different degrees when bent, and the buffer paperboard 2 will also adaptively adjust the position, and the adjacent buffer paperboards 2 will be separated to cooperate with the deformation of the flexible paper sheet 1, to ensure that the buffer effect can be continuously played in different packaging forms.

[0033] The flexible paper sheet 1 extends a wrapping part 3 along its length direction. When the flexible paper sheet 1 completes the wrapping of the main body of the product, the wrapping part 3 further plays a role in positioning and fixing the buffer paperboard 2 that has been wrapped on the product. Specifically, the wrapping part 3 is wrapped on the buffer paperboard 2, in this way, preventing the buffer paperboard 2 from losing effective protection for the product due to shaking and displacement in the subsequent handling and transportation links, further stabilizing the entire packaging structure and ensuring the safety of the product in complex logistics environment.

[0034] In summary, this flexible paperboard for packaging effectively solves the problem of traditional honeycomb paperboard that cannot be bent and is difficult to adapt to the packaging of complex product shapes through the cooperative matching of the flexible paper sheet 1 and the buffer paperboard 2, and the auxiliary fixing of the wrapping part 3, while taking into account the shock absorption performance, providing a new and practical solution for the packaging industry.

[0035] A double-sided tape 4 is arranged on the lower side of the wrapping part 3, one end of the wrapping part 3 is connected with the flexible paper sheet 1, and the double-sided tape 4 is arranged at the other end of the wrapping part 3.

[0036] The wrapping portion 3 is an extension of the flexible sheet 1, which extends along the length direction of the flexible sheet 1. One end is connected with the flexible sheet 1 to form a continuous sheet structure, and this connection ensures that the wrapping portion 3 can move cooperatively with the flexible sheet 1 during operation, and both of them participate in the wrapping process of the product and the buffer paperboard 2 as a whole.

[0037] In particular, a double-sided tape 4 is provided on the lower side of the wrapping portion 3. The double-sided tape 4 is precisely arranged at the other end of the wrapping portion 3, that is, the end away from the connection with the flexible sheet 1. When the flexible sheet 1 completes the initial wrapping of the product body, the buffer paperboard 2 is in place, and the wrapping portion 3 begins to play its key role. It wraps the buffer paperboard 2 in the opposite direction, tightly covering the buffer paperboard 2, and giving the buffer paperboard 2 lateral restraint to preliminarily prevent its displacement.

[0038] Then, the double-sided tape 4 appears. Due to its double-sided adhesive properties, one side is tightly attached to the lower side of the wrapping portion 3, and the other side directly contacts the corresponding surface of the buffer paperboard 2 after the wrapping portion 3 completes the wrapping action of the buffer paperboard 2. Through pressing or appropriate attachment operation, the double-sided tape 4 can quickly establish a firm adhesive force to firmly fix the end of the wrapping portion 3 with the buffer paperboard 2. This adhesive fixing step is of great significance. Even if subjected to external disturbances such as shaking and jolting during subsequent product handling, loading and unloading, and long-distance transportation, the wrapping portion 3 will not easily come off. It always maintains a tight state on the buffer paperboard 2, thereby ensuring that the buffer paperboard 2 is stably in the preset position, continuously providing reliable shock-absorbing protection for the product, greatly improving the integrity and safety of the product packaging in complex logistics environment, and effectively solving the problem of product damage caused by loose packaging.

[0039] The lower side of the wrapping portion 3 is provided with filling strips 5, and the filling strips 5 are provided in multiple, and the multiple filling strips 5 are arranged in the length direction of the wrapping portion 3.

[0040] In addition to the key double-sided tape 4 for end fixing on the lower side of the wrapping portion 3, filling strips 5 are also added. These filling strips 5 play a unique and important role in the entire packaging system. They are made of corrugated paperboard or honeycomb paperboard with good mechanical properties. These two materials themselves have a certain structural strength and can effectively disperse impact force when subjected to stress, thereby adding bricks and tiles to the stability of the packaging.

[0041] The plurality of filling strips 5 are distributed along the length direction of the wrapping part 3. This layout is carefully considered to adapt to the arrangement of the buffer paperboard 2. When the flexible paper sheet 1 completes the wrapping of the product body, the buffer paperboard 2 is correspondingly in place, and the wrapping part 3 starts the wrapping action, the filling strip 5 begins to play a key role. Due to the bending of the flexible paper sheet 1 and the irregular shape of the product, gaps of different sizes will appear between adjacent buffer paperboards 2. At this time, the filling strip 5 enters these gaps, accurately filling the gap between adjacent buffer paperboards 2.

[0042] On the one hand, the filling effect of the filling strip 5 makes the entire buffer structure more continuous and compact in the plane, avoiding the possible local protection weakness caused by the gap. When the product is subjected to impact force from all directions, the force can be evenly dispersed to the surrounding buffer paperboard 2 through the filling strip 5, and then effectively absorbed, greatly enhancing the all-round protection capability of the product. On the other hand, after the filling strip 5 is embedded in the gap, it also provides a certain supporting force for the buffer paperboard 2 from the side, preventing the buffer paperboard 2 from excessive shaking or displacement during transportation. Together with the double-sided tape 4, the fixing effect of the wrapping part 3 on the buffer paperboard 2 is optimized, and the product is fully protected from damage in complex logistics environment, further improving the practicality and reliability of the flexible paperboard for packaging.

[0043] The adjacent buffer paperboards 2 are in contact. A seamless buffer barrier is constructed in the width dimension of the flexible paper sheet 1. Compared with non-contact arrangement, this close contact eliminates the potential buffer "break point".

[0044] The flexible paper sheet 1 and the wrapping part 3 are integrally arranged, which greatly improves the operation convenience and structural stability. In the packaging process, there is no need to pay extra attention to the splicing or cooperation of the two, reducing the complexity and error probability of the packaging process. And in order to strengthen the mechanical properties of the whole, a flexible reinforcing layer made of PP plastic is added to the flexible paper sheet 1 and the wrapping part 3. PP plastic has good flexibility and certain strength, which will not hinder the bending deformation of the flexible paper sheet 1 and the wrapping part 3, but can provide additional supporting force during deformation to prevent the flexible part from excessive stretching or tearing, ensuring that the packaging action can be completed smoothly, while ensuring the integrity of the packaging structure.

[0045] The length of the buffer paper board 2 and the filling strip 5 is equal to the width of the flexible paper sheet 1. The buffer paper board 2 perfectly covers the width direction of the flexible paper sheet 1, ensuring that when facing the impact force perpendicular to the length direction of the flexible paper sheet 1, it can resist and buffer in all directions without leaving a dead angle. The equal-width design of the filling strip 5 ensures that it can accurately fit into the gap between adjacent buffer paper boards 2. No matter how the buffer paper board 2 displaces or deforms, the filling strip 5 can be perfectly embedded to achieve tight filling, further strengthening the overall buffer structure and improving the protection performance of the product in all directions.

[0046] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A flexible paperboard for packaging, comprising a long strip of flexible paper sheet (1), characterized in that: Also include long strip-shaped buffer paper board (2), the buffer paper board (2) is arranged on the upper side of the flexible paper sheet (1), the buffer paper board (2) is arranged along the width direction of flexible paper sheet (1), the buffer paper board (2) is provided with multiple, multiple buffer paper boards (2) are arranged along the length direction of flexible paper sheet (1), the flexible paper sheet (1) extends along its length direction and is wrapped into the wrapping part (3).

2. A flexible paperboard for packaging according to claim 1, characterized in that: The lower side of the wrapping part (3) is provided with double-sided tape (4), one end of the wrapping part (3) is connected with the flexible paper sheet (1), and the double-sided tape (4) is arranged at the other end of the wrapping part (3).

3. A flexible paperboard for packaging according to claim 2, characterized in that: The lower side of the wrapping part (3) is provided with a filling strip (5), and the filling strip (5) is provided with multiple, multiple filling strips (5) are arranged in the length direction of the wrapping part (3).

4. A flexible paperboard for packaging according to claim 3, characterized in that: The adjacent buffer paper boards (2) are arranged in contact.

5. A flexible paperboard for packaging according to claim 3, characterized in that: The flexible paper sheet (1) and the wrapping part (3) are integrally arranged.

6. A flexible paperboard for packaging according to claim 5, characterized in that: The flexible paper sheet (1) and the wrapping part (3) are provided with a flexible reinforcing layer.

7. A flexible paperboard for packaging according to claim 6, characterized in that: The flexible reinforcing layer is made of PP plastic.

8. A flexible paperboard for packaging according to claim 3, characterized in that: The length of the buffer paper board (2) and the filling strip (5) is equal to the width of the flexible paper sheet (1).

9. A flexible paperboard for packaging according to claim 3, characterized in that: The buffer paper board (2) is corrugated paper board.

10. A flexible paperboard for packaging according to claim 3, characterized in that: The buffer paper board (2) is honeycomb paper board.