A high color fastness anti-slip packaging box

Abstract

This invention discloses a high color fastness anti-slip packaging box, comprising a box body and a tear strip; the tear strip is located on the top wall of the box body and is used for closing and fixing the box body; the tear strip protrudes from the top wall of the box body, and the bottom wall of the box body has a strip-shaped hole; the shape of the strip-shaped hole corresponds to the shape of the tear strip. When two high color fastness anti-slip packaging boxes are stacked one on top of the other, the tear strip on the lower high color fastness anti-slip packaging box can extend into the strip-shaped hole on the upper high color fastness anti-slip packaging box. The tear strip integrates three functions of "sealing, easy tearing, and anti-slip" on the same component: when sealing, it spans and adheres to the overlap seam of the two top walls, acting as a tool-free sealing tape; when opening, simply pull up the tear strip to tear open the top wall at once, retaining the original convenient unpacking experience; during storage and transportation, the tear strip protrudes from the top of the box, forming a self-contained tenon.

Description

Technical Field

[0001] This invention relates to the field of packaging box technology, and more specifically, to a high color fastness, non-slip packaging box. Background Technology

[0002] In the distribution and warehousing of goods, packaging boxes are almost invariably transported using multi-layer stacking to maximize the use of pallet, container, and truck space. However, the smooth surface and low coefficient of friction of the paper substrate, combined with the horizontal inertial forces generated by sudden braking, turning, rail joints, or rough seas during transportation, make it extremely easy for upper-layer boxes to slip relative to lower layers. Slippage not only causes the stack to tilt and collapse, but also causes wear and tear on the edges and corners of the boxes, deformation of the contents due to compression, and even cracks in the seals and leakage of contents, directly leading to cargo damage, returns, and a decline in brand reputation.

[0003] To alleviate these problems, the industry commonly uses auxiliary methods such as stretch film, anti-slip paper pads, or adhesive spraying for reinforcement. However, these additional materials increase packaging processes, recycling difficulties, and unit costs, and their effectiveness often fluctuates due to inconsistent manual operation. Meanwhile, as e-commerce channels increasingly demand a superior "unboxing experience" and brand visual appeal, the outer surface of cardboard boxes needs to exhibit high saturation, fine halftone dots, and tiny text. However, conventional water-based inks have limited spreadability on kraft paper, and at high screen rulings, "hollow text" and "dot misalignment" are prone to occur. Furthermore, short paper fibers are easily pulled up during handling and friction, leading to color fading and white showing in the graphic areas, resulting in significantly insufficient color fastness. Repeated friction during transportation, condensation, and high-temperature sunlight further exacerbate the blurring and fading of surface graphics, making it difficult for packaging boxes to simultaneously meet the dual basic requirements of "transportation safety" and "shelf appeal." Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high color fastness anti-slip packaging box to solve at least some of the technical problems mentioned in the background art.

[0005] To achieve the above objectives, a first aspect of the present invention provides a high color fastness anti-slip packaging box, comprising a box body and a tear strip; the tear strip is located on the top wall of the box body and is used to close and fix the box body; the tear strip protrudes from the top wall of the box body, and the bottom wall of the box body has a strip-shaped hole; the shape of the strip-shaped hole corresponds to the shape of the tear strip; when two high color fastness anti-slip packaging boxes are stacked on top of each other, the tear strip on the lower high color fastness anti-slip packaging box can extend into the strip-shaped hole on the upper high color fastness anti-slip packaging box; the tear strip is cut from a portion of the bottom wall of the box body, the cut portion of the bottom wall of the box body forms the strip-shaped hole, and the tear strip is adhered and fixed to both top walls of the box body, covering the gap between the two top walls of the box body.

[0006] Optionally, the packaging box further includes a concave-convex structure; the concave-convex structure is disposed between the side wall of the tear strip and the side wall of the strip hole; when two high color fastness anti-slip packaging boxes are stacked one on top of the other, the tear strip on the lower high color fastness anti-slip packaging box engages with the strip hole on the upper high color fastness anti-slip packaging box through the concave-convex structure.

[0007] Optionally, the tear strip has a first sidewall extending along the length of the box body; the first sidewall is a wavy surface or a serrated surface.

[0008] And / or, the tear strip has a second sidewall disposed opposite to the first sidewall; the second sidewall is wavy or serrated.

[0009] Optionally, the sidewall of the strip hole is wavy or sawtooth-shaped.

[0010] Optionally, the width of the box body is D, and the width of the tear strip is d, where D ≥ 10d.

[0011] Optionally, the length of the strip hole is the same as the length of the box body.

[0012] Optionally, the front and rear sidewalls of the box body are provided with hollow areas.

[0013] Optionally, the box body is formed by pressing together multiple layers of cardboard.

[0014] Optionally, the side wall of the box body has a graphic printing area; the graphic printing area adopts flexographic printing process and is printed by means of transferring ink through resin printing plate and anilox roller.

[0015] The specific technical effects of this embodiment are as follows: During the packaging stage, the tear strip, applied as continuous tape or by dotted adhesive, spans and presses the overlap of the two top walls to form a one-time sealing strip. Its tensile strength can replace part of the sealing tape. Simultaneously, because it protrudes from the top surface of the box, it acts as a second "reinforcing rib" beyond the die-cut crease, suppressing local collapse of the top wall during the initial stacking stage and pre-storing geometric accuracy for subsequent multi-layer stacking. Upon entering the opening stage, the consumer simply pinches the tear strip and tears it along the pre-set cut line to cut the overlap area of ​​the top wall in one go, without the need for a knife or additional tear holes. The strip itself evenly transmits tearing force during the breaking process, preventing the top wall from shattering or the contents from accidentally spilling out, maintaining a simple and safe unpacking experience. During the transportation phase, the same protruding tear strip is immediately replaced with a "self-contained anti-slip tenon": when the packaging boxes are stacked, the tear strip of the lower box body automatically inserts into the strip hole on the bottom surface of the upper box body, forming a tenon-mortise interlock. This provides continuous stopping surfaces in four directions: front, back, left, and right. The horizontal inertial force is converted into the positive pressure and frictional resistance of the interlocking surfaces, significantly suppressing interlayer slippage caused by vehicle braking, ship swaying, or forklift sudden stops. Since the tear strip runs through the length of the box body, the interlocking effect covers the entire contact long side, making the entire stack load exhibit a "continuous keyway" effect, eliminating the need for additional anti-slip mats, stretch film, or adhesive spraying. This achieves three uses for one item, material reduction, and simplified recycling throughout the entire "packaging-opening-transportation" chain. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a high color fastness anti-slip packaging box according to the present invention. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the structure of a high color fastness anti-slip packaging box according to the present invention. Figure 2 .

[0018] Figure 3 This is a schematic diagram showing the installation of the box body and tear strip of a high color fastness anti-slip packaging box according to the present invention.

[0019] Figure 4 This diagram illustrates the stacking process of two high color fastness anti-slip packaging boxes according to the present invention.

[0020] Figure 5 This is a schematic diagram of two high color fastness anti-slip packaging boxes of the present invention stacked together.

[0021] The attached diagram is labeled as follows: 1. Box body; 2. Tear strip; 11. Strip hole; 12. Hollowed-out area; 13. Top wall; 14. Bottom wall; 15. Printed area; 16. Gap. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figure 1 and Figure 2 The illustration shows a high colorfastness, non-slip packaging box, comprising a box body and a tear strip; the tear strip is located on the top wall of the box body and is used for closing and securing the box body; the tear strip protrudes from the top wall of the box body, and the bottom wall of the box body has a strip-shaped hole; the shape of the strip-shaped hole corresponds to the shape of the tear strip. Figure 4 and Figure 5 As shown, when two high color fastness anti-slip packaging boxes are stacked one on top of the other, the tear strip on the lower high color fastness anti-slip packaging box can extend into the strip hole on the upper high color fastness anti-slip packaging box.

[0024] The tear strip integrates three functions on the same component: sealing, easy tearing, and anti-slip. When sealing, it spans and adheres to the overlap of the two top walls, acting as a tool-free sealing tape. When opening, simply pull up the tear strip to tear open the top wall in one go, retaining the original convenient unpacking experience. During storage and transportation, the tear strip protrudes from the top of the box, forming a tenon that interlocks with the strip hole on the lower surface of the upper box, providing four-way mechanical restraint for the upper and lower boxes during transportation bumps. This significantly increases the friction path and prevents slippage, thus upgrading what was originally an auxiliary component that only served to open the box into a core anti-slip structure that also ensures stacking stability. This achieves three uses in one product, requires no additional anti-slip materials, and simplifies the recycling process. Specifically, during the packaging stage, the tear strip, applied as continuous tape or by dotted adhesive, spans and presses against the overlap of the two top walls, forming a one-time sealing strip. Its tensile strength can replace part of the sealing tape. Simultaneously, because it protrudes from the top surface of the box, it acts as a second "reinforcing rib" beyond the die-cut creases, suppressing localized collapse of the top wall during initial stacking and pre-storing geometric precision for subsequent multi-layer stacking. Upon opening, consumers simply pinch the tear strip and tear it along the pre-set cut line to cut the overlap area of ​​the top wall in one go, without the need for a knife or additional tear holes. The strip itself evenly distributes tearing force during the breaking process, preventing the top wall from shattering or contents from accidentally spilling, maintaining a simple and safe unpacking experience. During the transportation phase, the same protruding tear strip is immediately replaced with a "self-contained anti-slip tenon": when the packaging boxes are stacked, the tear strip of the lower box body automatically inserts into the strip hole on the bottom surface of the upper box body, forming a tenon-mortise interlock. This provides continuous stopping surfaces in four directions: front, back, left, and right. The horizontal inertial force is converted into the positive pressure and frictional resistance of the interlocking surfaces, significantly suppressing interlayer slippage caused by vehicle braking, ship swaying, or forklift sudden stops. Since the tear strip runs through the length of the box body, the interlocking effect covers the entire contact long side, making the entire stack load exhibit a "continuous keyway" effect, eliminating the need for additional anti-slip mats, stretch film, or adhesive spraying. This achieves three uses for one item, material reduction, and simplified recycling throughout the entire "packaging-opening-transportation" chain.

[0025] As an optional implementation, the packaging box also includes a raised / lowered structure; the raised / lowered structure is disposed between the sidewall of the tear strip and the sidewall of the strip hole; when two high color fastness anti-slip packaging boxes are stacked one on top of the other, the tear strip on the lower high color fastness anti-slip packaging box engages with the strip hole on the upper high color fastness anti-slip packaging box through the raised / lowered structure. An additional raised / lowered structure is added between the sidewall of the tear strip and the sidewall of the strip hole. When the strip and hole are engaged, the raised / lowered structures interlock, refining the original single "large contour anti-slip" into multiple sets of "micro-tooth anti-slip". The tooth surface generates progressive locking under horizontal inertial force: minute displacements are stopped by the tooth peaks, and energy is distributed to each tooth root, preventing overall slippage; simultaneously, the elastic deformation of the tooth shape provides springback compensation, maintaining the tightness of the fit without diminishing, and doubling the anti-slip redundancy.

[0026] As an optional implementation, the tear strip has a first sidewall extending along the length of the box body; the first sidewall is a wavy or serrated surface. And / or, the tear strip has a second sidewall disposed opposite to the first sidewall; the second sidewall is wavy or serrated. The first and / or second sidewalls of the tear strip are designed as wavy or serrated surfaces. After the curved surface is inserted into the strip hole, the actual contact path changes from a straight line to a curve, increasing the effective contact length; when a horizontal force attempts to push the upper box, the curved wall surface converts part of the thrust into a vertically downward component, creating a "self-locking and pressing" effect between the upper and lower boxes. The friction increases synchronously with the increase of the external force, exhibiting the characteristic of becoming more slip-resistant under pressure.

[0027] As an optional implementation, the sidewalls of the strip hole are wavy or serrated. The sidewalls of the strip hole are also made into wavy or serrated surfaces, forming a "double-sided toothed" surface with the curved sidewalls of the tear strip. After insertion, the upper and lower tooth peaks intersect, resulting in multiple transverse locking shoulders; any slippage in any direction must overcome the shear height of the tooth shoulders, which is equivalent to adding "miniature baffles" between the paper surfaces, thus raising the anti-slip threshold again.

[0028] As an optional implementation, the width of the box body is D, and the width of the tear strip is d, where D ≥ 10d. The narrow tear strip makes the strip hole narrow as well, and the fitting part is concentrated near the center line of the box body, forming a "central guide rail" effect: even if the stack body twists slightly during bumps, the narrow guide rail can quickly return to the correct position, preventing cumulative misalignment; at the same time, the narrow strip has minimal impact on the opening function of the box lid, taking into account both convenience and anti-slip properties.

[0029] As an optional implementation, the length of the strip hole is the same as the length of the box body. The strip hole extends through the entire length of the box body. Full-length insertion is equivalent to setting a continuous guide key along the entire length of the box. The lower tear strip and the upper strip hole fit together throughout the entire length, and the horizontal shear force is evenly distributed throughout the contact zone, avoiding gradual loosening caused by local stress concentration; the tendency of the entire stack to slip is "completely sealed", and the stack exhibits overall rigidity.

[0030] As an optional implementation, the front and rear sidewalls of the box body are provided with perforated areas. By symmetrically opening perforated areas on the front and rear sidewalls of the box body, excess cardboard is directly removed, achieving weight reduction and cost reduction, and reducing material usage; at the same time, the continuous paper strips retained at the edges of the perforations naturally form grip holes for fingers to insert, creating a grip position that eliminates the need for additional handles, facilitating manual or automatic grasping and handling, and taking into account both lightweight and ease of operation.

[0031] As an optional implementation, the box body is formed by pressing together multiple layers of cardboard. The multi-layer structure allows for the creation of a thicker interlocking wall during die-cutting of tear strips and perforations, effectively increasing the wall thickness of the mortise and tenon joint and expanding its shear resistance area. The interlaced fiber directions between the layers further prevent crack propagation, ensuring that the interlocking parts are less prone to chipping during repeated assembly and disassembly, and extending their anti-slip lifespan.

[0032] As an optional implementation, the side walls of the box body have graphic printing areas. These areas utilize flexographic printing, employing a method of ink transfer via resin printing plates and anilox rollers for relief printing. The side wall graphic areas use flexographic resin relief printing. The relief printing presses the ink into deep recesses in the paper surface, creating a mechanical anchor. Subsequent transport friction primarily acts on the top of the raised ink layer, while the bottom graphic remains intact. Improved colorfastness means the markings are always clearly legible. Clear markings allow warehouse personnel to quickly identify box codes without tumbling, reducing the number of manual pushes and pulls, lowering the risk of stack slippage caused by human intervention, and indirectly protecting stack stability.

[0033] like Figure 3 As shown, in one optional implementation, the tear strip is cut from the bottom wall of the box body. The cut portion of the bottom wall forms a strip-shaped hole. The tear strip is glued and fixed to both top walls of the box body, covering the gap between the two top walls. The "strip" cut from the bottom wall does not fall off but remains connected to the box body and is used directly as a tear strip. The empty space originally occupied by the strip forms the strip-shaped hole, and 100% of the cardboard fiber remains in the finished product, with no waste. The tear strip is fixed by double-layer gluing of "bottom wall scrap + top wall overlap": the bottom wall scrap itself is the original cardboard thickness, and after being glued to the two top walls, it forms a partial double-layer structure with better tensile strength than a single-layer sealing tape. It can continuously lock the top wall during transportation vibration, reducing the probability of box bursting. The shape of the tear strip and the shape of the strip-shaped hole are the same, formed by die-cutting in one go, and they are mutually complementary. The size is determined by a single die, and the gap between the strip and the hole is constant in batches of boxes, ensuring stable anti-slip fitting effect and avoiding thickness fluctuations caused by subsequent application of anti-slip auxiliary materials. The four actions of cutting, stripping, hole forming, and sealing are completed on the same cutting board and at the same workstation, eliminating the need for additional anti-slip materials and the need for padding or glue spraying, thus shortening the production line cycle time; the recycled paper contains only a single type of paper, without plastic or adhesive pad impurities, making the pulping process simpler.

[0034] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high color fastness, non-slip packaging box, comprising a box body and a tear strip; the tear strip is located on the top wall of the box body and is used to close and secure the box body; characterized in that: The tear strip protrudes from the top wall of the box body, and the bottom wall of the box body has a strip-shaped hole; the shape of the strip-shaped hole corresponds to the shape of the tear strip. When two of the aforementioned high color fastness anti-slip packaging boxes are stacked one on top of the other, the tear strip on the lower high color fastness anti-slip packaging box can extend into the strip-shaped hole on the upper high color fastness anti-slip packaging box; The tear strip is cut from the bottom wall of the box body, and the cut portion of the bottom wall of the box body forms the strip-shaped hole. The tear strip is glued and fixed to both top walls of the box body and covers the gap between the two top walls of the box body. The box body is formed by pressing together multiple layers of cardboard.

2. The high color fastness anti-slip packaging box according to claim 1, characterized in that: The packaging box also includes a raised and recessed structure; the raised and recessed structure is disposed between the sidewall of the tear strip and the sidewall of the strip hole; When two of the high color fastness anti-slip packaging boxes are stacked one on top of the other, the tear strip on the lower high color fastness anti-slip packaging box engages with the strip hole on the upper high color fastness anti-slip packaging box through the convex-concave structure.

3. The high color fastness anti-slip packaging box according to claim 1, characterized in that: The tear strip has a first sidewall extending along the length of the box body; the first sidewall is a wavy surface or a serrated surface. And / or, the tear strip has a second sidewall disposed opposite to the first sidewall; the second sidewall is wavy or serrated.

4. The high color fastness anti-slip packaging box according to claim 1, characterized in that: The sidewalls of the strip-shaped hole are wavy or sawtooth-shaped.

5. A high color fastness anti-slip packaging box according to claim 1, characterized in that: The width of the box body is D, and the width of the tear strip is d, where D ≥ 10d.

6. A high color fastness anti-slip packaging box according to claim 1, characterized in that: The length of the strip hole is the same as the length of the box body.

7. A high color fastness anti-slip packaging box according to claim 1, characterized in that: The front and rear sidewalls of the box body are provided with hollow areas.

8. A high color fastness anti-slip packaging box according to claim 1, characterized in that: The side wall of the box body has a graphic printing area; the graphic printing area adopts flexographic printing process and is printed by means of transferring ink through resin printing plate and anilox roller.

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