A packaging box with tactile effects and its preparation method

Abstract

This invention relates to the field of packaging technology and discloses a packaging box with a tactile effect and its preparation method. The packaging box includes an outer box, an inner box, and a triboelectric generation module. The outer box has a conductive outer box liner with a conductive layer. A support body with recesses is located inside the outer box. A separating element is provided on the surface of the inner box that contacts the support body, and an elastic compressible element is provided on the product access side of the inner box. The triboelectric generation module includes a first friction layer, a second friction layer, and a retractable conductive element. The first friction layer is located on the support body, and the second friction layer is electrically connected to the conductive layer on the surface of the outer box liner through the retractable conductive element. When the inner box is pulled out, the separating element, in conjunction with the support body, causes the first and second friction layers to intermittently contact and separate, generating a safe micro-alternating current. This current is conducted into the conductive layer on the surface of the outer box liner, providing a dynamic, rhythmic tactile sensation when touched. This invention enhances the interactive experience of packaging and product differentiation.

Description

Technical Field

[0001] This invention relates to the field of packaging technology, and in particular to a packaging box with a tactile effect and its preparation method. Background Technology

[0002] With economic development, the importance of brand building has become increasingly prominent. As a direct external expression of a product brand, packaging plays an important role in enhancing brand image, increasing brand recognition, and influencing consumer purchasing decisions.

[0003] As consumers' demands for product experience continue to rise, packaging is no longer limited to its basic functions of containing and protecting products, but has gradually evolved into an important medium for interaction with consumers. Currently, most packaging on the market relies on traditional processes such as embossing, special tactile ink printing, and special lamination to create a tactile feel that only produces a static physical feel. There is no dynamic change after consumers touch the packaging, resulting in a limited form of experience.

[0004] While some existing technologies feature interactive, electrically powered packaging, most rely on external power sources and built-in button batteries to achieve tactile feedback. This results in drawbacks such as cumbersome assembly, prone battery failure, and high production costs. Furthermore, traditional static tactile packaging technology has low barriers to entry, making it easily counterfeited and unable to create a brand differentiation barrier. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a packaging box with a tactile effect, which can generate electricity by pulling out the inner box to form a dynamic rhythmic tactile sensation on the surface of the packaging.

[0006] To solve the above technical problems, the present invention adopts the following technical solution: A tactile packaging box includes an outer box, an inner box that can slide within the outer box, and a triboelectric power generation module for generating a microcurrent when the inner box slides relative to the outer box. The outer box is provided with an outer box liner that can conduct electricity, and the outer box liner is provided with a conductive layer. A support body is provided in the outer box, and the support body is provided with a number of recesses distributed at intervals. The inner box is disposed in the outer box, and a separation member is provided on the surface of the inner box that contacts the support body. An elastic compressible member is provided on the side of the inner box and on the side away from the product loading and unloading port of the support body. The triboelectric power generation module includes a first friction layer, a second friction layer, and a retractable conductive element. The first friction layer is disposed at the support body and / or the recess, and the first friction layer is electrically connected to the conductive layer. The second friction layer is electrically connected to the conductive layer through the retractable conductive element and the outer box paper. The first friction layer and the second friction layer are made of different materials. When the inner box slides relative to the outer box, the cooperation between the separator and the support causes the second friction layer and the first friction layer to intermittently contact and separate, generating alternating current, which is transmitted to the conductive layer through the retractable conductive member.

[0007] In the aforementioned tactile packaging box, the retractable conductive component is a conductive spiral. One end of the spiral body of the retractable conductive component is fixed to the inner box. The first terminal of the retractable conductive component is electrically connected to the second friction layer, and the second terminal of the retractable conductive component passes through the inner box and the outer box paper and is electrically connected to the conductive layer.

[0008] In the aforementioned tactile packaging box, the inner box is provided with a hollow cavity for accommodating the retractable conductive component and a through hole for the retractable conductive component to pass through.

[0009] In the aforementioned tactile packaging box, the inner wall of the outer box is provided with a first locking member, and the outer wall of the inner box is provided with a second locking member that cooperates with the first locking member to lock.

[0010] In the aforementioned tactile packaging box, the recess is an arc-shaped groove evenly distributed on the support body, and the separator is an arc-shaped separator.

[0011] In the aforementioned tactile packaging box, the conductive layer is a conductive ink layer, the first friction layer is a polymer conductor film, and the second friction layer is a metal layer.

[0012] The formula for calculating the alternating current flowing through the conductive layer in the tactile packaging box is as follows:

[0013] Where U is the output voltage of the triboelectric generator module, and R... 导电层 R is the resistance of the conductive layer. 内阻 I is the internal resistance of the triboelectric power generation module. 输出 This is the output current of the triboelectric generator module.

[0014] A method for preparing a packaging box with a tactile effect, comprising: After printing a conductive layer on the surface of the outer box paper, it is laminated with the outer box board. The outer box unfolding blank is obtained by die cutting, V-groove or creasing. A support body covered with a first friction layer is bonded to the inside of the outer box unfolding blank, and the sides of the outer box unfolding blank are glued and fixed to form an outer box. Die-cut the inner box sheet, V-groove or indentation to obtain the inner box unfolded blank, then bond the second friction layer, the separator and the elastic compressible part to the inner box unfolded blank, and electrically connect one end of the stretchable conductive part to the second friction layer. Apply glue to the side of the inner box unfolded blank to fix it into an inner box. Connect the other end of the retractable conductive component to the conductive layer of the outer box, and then place the inner box inside the outer box. When the inner box is pulled out and slides relative to the outer box, the cooperation between the separator and the support causes the second friction layer to intermittently contact and separate from the first friction layer, generating alternating current, which is transmitted to the conductive layer via the retractable conductive member.

[0015] The preparation method further includes: printing a conductive layer on the surface of the outer box paper and then laminating it with the outer box board; die-cutting, V-grooving, or creasing to obtain an outer box unfolded blank; bonding a support body covered with a first friction layer to the inner side of the outer box unfolded blank; and applying adhesive to the sides of the outer box unfolded blank to fix it into an outer box. A wire is pre-embedded in the support body, with one end of the wire connected to the first friction layer and the other end connected to the conductive layer.

[0016] The preparation method includes: die-cutting the inner box sheet material, creating V-grooves or indentations to obtain an inner box unfolded blank; bonding a second friction layer, a separator, and an elastic compressible component to the inner box unfolded blank; electrically connecting one end of the stretchable conductive component to the second friction layer; and applying adhesive to the sides of the inner box unfolded blank to fix it into an inner box. The method further includes: The retractable conductive component is installed in the hollow cavity of the inner box, so that one end of the retractable conductive component is electrically connected to the second friction layer, and the other end of the retractable conductive component is connected to the conductive layer of the outer box through the inner box.

[0017] Compared to existing technologies, the tactile packaging box and its preparation method provided by this invention employ a first friction layer and a second friction layer made of different materials. When the inner box is pulled out, the first and second friction layers intermittently contact and separate through the cooperation of the separator and the support body, generating a safe micro-alternating current. The current is introduced into the outer box paper and conductive layer, and the human hand can obtain a dynamic rhythmic numb tactile sensation upon touch. This invention eliminates the limitation of using an external power source and changes the drawback of traditional packaging that can only achieve static physical tactile sensation, thereby enhancing the interactive experience of packaging and product differentiation. Attached Figure Description

[0018] Figure 1 A schematic diagram of the overall structure of the tactile packaging box provided by the present invention.

[0019] Figure 2 This is a schematic diagram of the outer box of the tactile packaging box provided by the present invention.

[0020] Figure 3 This is a schematic diagram of the unfolded blank of the outer box of the packaging box with tactile effect provided by the present invention.

[0021] Figure 4 A schematic diagram of the inner box of the tactile packaging box provided by the present invention. Figure 1 .

[0022] Figure 5 A schematic diagram of the inner box of the tactile packaging box provided by the present invention. Figure 2 .

[0023] Figure 6 A flowchart illustrating the method for preparing a tactile packaging box provided by the present invention.

[0024] Explanation of reference numerals in the attached figures 1. Outer box; 11. Support body; 12. Recess; 13. Wire; 14. First locking element; 2. Inner box; 21. Separator; 22. Elastic compressible element; 23. Pull cord; 24. Hollow cavity; 25. Second locking element; 31. First friction layer; 32. Second friction layer; 33. Stretchable conductive element. Detailed Implementation To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0025] This invention employs a light industrial manufacturing process, such as printing, coating, or vapor deposition, to prepare low resistivity materials on the outer surface of packaging, i.e. the surface of the outer box. Based on the application of packaging products, the triboelectric power generation module is organically combined with the structure of the packaging box to achieve the safe transmission of the microcurrent generated by the triboelectric power generation module to the surface of the packaging box during packaging applications, thereby achieving a dynamic and actively changing surface tactile effect.

[0026] Please see Figure 1 The tactile packaging box provided by the present invention includes an outer box 1, an inner box 2, and a triboelectric module. The inner box 2 is disposed in the outer box 1 and can slide in the outer box 1. The triboelectric module generates a microcurrent when the inner box 2 slides relative to the outer box 1.

[0027] The outer box 1 can be made of rigid sheet material, such as gray cardboard or hard cardboard. It is die-cut according to the structure of the outer box 1 using a die-cutting machine. V-grooves or creases can be made at the bending points during die-cutting. The box blanks are then glued together to form a rectangular cavity with an opening on one side. The V-grooves and creases can be selected according to the needs of the folded edges of the outer box 1. Since die-cutting, creases, and V-grooves can all be processed using existing packaging manufacturing equipment, they will not be described in detail here.

[0028] Please refer to the following: Figure 2 and Figure 3 ,in, Figure 2This is a perspective structural diagram of a simplified outer box 1. The outer box 1 is provided with a conductive outer box liner (not shown in the figure), and a conductive layer (not shown in the figure) is provided on the outer box liner. The outer box liner can be made of coated paper or special paper, and the conductive layer can be made of printed conductive ink coating, metal plating, or etched metal layer, etc., and can be attached to the outer box liner through printing, vapor deposition, or etching processes, respectively. The outer box liner can be bonded to the box blank of the outer box 1 through a composite process.

[0029] Optionally, the conductive layer is a continuous pattern on the outer box paper, which can ensure that its resistance (i.e., resistivity × equivalent length / cross-sectional area) matches the performance of the triboelectric power generation module, so that the current threshold flowing through the conductive layer is in the range of 0.6mA to 1.5mA.

[0030] Please refer to the following: Figure 4 and Figure 5 , Figure 4 This is a perspective structural diagram of the simplified inner box 2. Figure 5 This is a three-dimensional structural diagram of the inner box 2. The blank of the inner box 2 can be made of rigid sheet material, and can be made of the same material as the outer box 1. During manufacturing, die-cutting equipment can be used to die-cut and create V-grooves or indentations according to the structure of the inner box 2, and then bend and glued to form a cuboid cavity with an opening on the top surface. This opening is the product loading and unloading port of the inner box.

[0031] The triboelectric power generation module includes a first friction layer 31, a second friction layer 32, and a retractable conductive element 33. The first friction layer 31 and the second friction layer 32 are made of different conductive materials. The retractable conductive element 33 is used to transmit the microcurrent generated by the triboelectric power generation module to the outer box 1 when the inner box 2 moves relative to the outer box 1. This invention adopts a dual-conductor contact separation triboelectric power generation structure, which generates a safe microcurrent by itself through the pulling action. A dynamic tingling sensation can be obtained upon touch, without the need for an external power source. This enriches the interactive experience of packaging and enhances the brand's anti-counterfeiting effect.

[0032] Please continue reading. Figures 1 to 5 In this embodiment of the invention, a support body 11 is provided in the outer box 1, and a plurality of recesses 12 are provided on the support body 11 at intervals. The support body 11 can be disposed on the inner wall of the bottom of the outer box 1, and can be made of EVA material with high hardness. The recesses 12 can be laterally disposed through the upper surface of the support body 11, making the upper surface of the support body 11 have a concave-convex structure, and the recesses 12 can be distributed in an equidistant manner.

[0033] The first friction layer 31 is disposed at the support 11 and / or the recess 12. The first friction layer 31 is a negative friction layer and also serves as the negative electrode of the triboelectric power generation module. It can be made of polymer conductor film material [such as PEDOT:PSS, where PEDOT:PSS is a water-soluble conductive polymer (organic semiconductor), full name: poly(3,4-ethylenedioxythiophene): polystyrene sulfonate], which can partially or completely cover the upper surface of the support 11. It can be made by bonding it to the support 11 with adhesive.

[0034] In this embodiment, the first friction layer 31 is electrically connected to the conductive layer. The electrical connection can be made by a wire 13, a transmission line, or a PCB trace to the conductive layer, as long as the microcurrent generated during friction can be transmitted to the conductive layer.

[0035] like Figure 2 and 3 As shown, in one embodiment, the first friction layer 31 is connected to the conductive layer via a wire 13. The wire 13 is placed in a through hole (not shown in the figure) vertically arranged in the support body 11. One end of the wire 13 is electrically connected to the connection point of the first friction layer 31 by a snap-fit ​​connection. The other end of the wire 13 is sequentially connected to the connection point of the conductive layer on the surface of the outer box 1 through the through hole at the bottom of the outer box 1, the hole in the outer box paper, and the snap-fit ​​connection point.

[0036] like Figure 4 and Figure 5 As shown, a separating member 21 is provided on the surface of the inner box 2 that contacts the support body 11, and an elastic compressible member 22 is provided on the side of the inner box 2. The elastic compressible member 22 is located on the side away from the support body 11 (such as the product access side of the inner box). For example, the separating member 21 can be provided on the bottom surface of the inner box 2, and when the inner box 2 is inserted into the outer box 1, the separating member 21 contacts the support body 11. The elastic compressible member 22 can be made of EVA material with low hardness, and it is respectively provided on the top of the other three sides of the inner box 2, excluding the pull-out side, so that the top surface of the elastic compressible member 22 is at the same height as the pull-out side, thereby making the inner and outer boxes 1 height matched when assembled.

[0037] The second friction layer 32 is a positive friction layer and also serves as the positive electrode of the triboelectric power generation module. It can be a metal layer, such as copper or aluminum sheets, which have good conductivity. In this embodiment, the second friction layer 32 does not need to cover the entire bottom surface of the inner box 2. It can be set to 1cm² to 25cm² depending on the bottom surface size of the inner box 2, and more preferably 9cm² to 25cm². It is fixedly set at the end of the outer wall of the bottom surface of the inner box 2 away from the pull-out side, which can also be understood as the rear end of the bottom surface.

[0038] The second friction layer 32 is electrically connected to the conductive layer through the retractable conductive member 33 and the outer box paper. The retractable conductive member 33 is used to maintain the electrical connection between the second friction layer 32 and the conductive layer when the inner box 2 is pulled out.

[0039] The triboelectric power generation module is used to generate a microcurrent when the inner box 2 is pulled out. For example, when the inner box 2 slides relative to the outer box 1, the cooperation between the separator 21 and the support 11 causes the second friction layer 32 to intermittently contact and separate from the first friction layer 31, generating a safe micro-alternating current. This current is transmitted to the conductive layer via the retractable conductive member 33. When the inner box 2 is pulled out, the user's hand will touch the outer box paper or the conductive layer, thus perceiving a dynamic, rhythmic, slightly tingling tactile sensation. This changes the shortcomings of traditional packaging, which can only achieve a static physical tactile sensation, and improves the interactive experience of packaging and product differentiation. Moreover, this invention uses a pull-out power generation method, which does not require an external power source (such as a battery), and the user does not need to replace the battery.

[0040] To facilitate the pulling out of the inner box 2, a pull cord 23 or a pull ring is provided on the outer side of the inner box 2. The recess 12 is an arc-shaped groove, and the separating member 21 is correspondingly an arc-shaped separating member. The size of the arc-shaped separating member is slightly smaller than that of the arc-shaped groove. When the arc-shaped separating member moves into the arc-shaped groove, the second friction layer 32 is brought into close contact with the first friction layer 31. Preferably, the recesses 12 are evenly distributed on the support body 11, so that when the inner box 2 is pulled out at a uniform speed, the second friction layer 32 and the first friction layer 31 can periodically contact each other, resulting in a more consistent microcurrent and a consistent user experience. The invention uses an arc-shaped groove and an arc-shaped separating member, which facilitates smooth pulling. The arc-shaped separating member and the arc-shaped groove can be semi-circular or slightly curved.

[0041] The separating element 21 can be made of a columnar rigid material (preferably plastic, metal, wood, etc.). The radius of the separating element 21 can be 3mm to 10mm, more preferably 3mm to 6mm, and its length is the same as that of the second friction layer 32. In specific implementation, there is at least one separating element 21. When two or more are used, the separating element 21 and the recess 12 are arranged at equal intervals along the pulling direction of the inner box 2. They can be fixedly set on the lower surface of the inner box 2 and close to the second friction layer 32.

[0042] Optionally, the height of the elastic compressible member 22 may be greater than the height of the arc-shaped separating member. For example, the height of the elastic compressible member 22 may be 3-5 times that of the arc-shaped separating member. When the arc-shaped separating member separates from the arc-shaped groove, the elastic compressible member 22 is compressed. The elastic compressible member 22 with a relatively larger height has a smaller degree of compression and a faster reset speed. Thus, when the separating member 21 falls into the recess 12, the elastic compressible member 22 can quickly reset.

[0043] When the inner box is pulled out, as the semi-cylindrical separating member 21 slides upward from the recess 12 of the support body 11 to the horizontal part of the support body 11 (in this embodiment, the horizontal part is a convex part relative to the recess), it will press the elastic compressible member 22 upward, causing the elastic compressible member 22 to be compressed by force; as the semi-cylindrical separating member 21 slides downward from the horizontal part of the support body 11 to the recess 12 of the support body 11, the pressure on the elastic compressible member 22 gradually decreases and rebounds to restore its original height; repeating the first two steps ensures that the inner box can be pulled out without getting stuck.

[0044] Furthermore, a smooth layer, such as single-sided release paper (or silicone paper), is provided on the top surface of the elastic compressible component. The non-slip surface of this layer is fixed to the top surface of the elastic compressible component by adhesive or other means, while the slip surface contacts the top wall of the outer box (after the inner and outer boxes are assembled). Furthermore, slip surfaces can also be simultaneously provided on other sides inside the outer box to further reduce friction during relative sliding of the inner and outer boxes.

[0045] This invention generates a safe micro-current by causing the inner box 2 to move up and down at a certain frequency during the pulling of the inner and outer boxes. This synchronously causes the positive and negative friction layers to collide and separate at the same frequency, thus producing a safe micro-current for the human body. No current is generated when the boxes are not being pulled. The use of two different conductors as the positive and negative friction layers and electrodes for triboelectric generation, along with the conductivity of the conductive layer, ensures that the current flowing through the conductive layer is within a safe threshold range for the human body, producing a slight tingling sensation (e.g., 0.6mA to 1.5mA). Therefore, during the pulling of the inner and outer boxes 1, the user's hand touching the outer box's paper or conductive layer produces a rhythmic tactile effect. Furthermore, in medical applications, the weak current can have a massaging effect and promote blood circulation.

[0046] Furthermore, when combined with other existing surface-touch packaging technologies, it can further enhance the product experience and raise the barriers to imitation. Of course, this application is not limited to its application in nested pull-out packaging products; it can also be applied to other articles prepared in conjunction with light industrial manufacturing processes.

[0047] Please continue reading. Figure 4 and Figure 5 The retractable conductive component 33 is a conductive spiral. One end of the spiral body of the retractable conductive component 33 is fixed to the inner box 2. For example, one end of the spiral body can be fixed to the side wall of the inner box 2 by adhesive, so that when a part of the spiral body of the retractable conductive component 33 is suspended in the inner box 2, the swaying of the conductive spiral when the inner box 2 is pulled out is reduced.

[0048] The first terminal of the retractable conductive element 33 is electrically connected to the second friction layer 32, and the second terminal of the retractable conductive element 33 passes through the inner box 2 and the outer box paper and is electrically connected to the conductive layer.

[0049] The first terminal and the second friction layer 32 are electrically connected, and the second terminal and the conductive layer are electrically connected, respectively, using a clip-on connection. The clip-on connection involves fixing the second friction layer 32 and the first terminal with a double-sided sticker. Of course, the invention can also use a snap-fit ​​connection or a pin connection. For example, a snap-fit ​​connection involves inserting the first terminal into the connection hole of the second friction layer 32 and clamping the wire end of the first terminal to the hole wall; a pin connection involves installing a pin holder on the second friction layer 32 and inserting the front wire end of the first terminal into the pin holder. As long as electrical connection can be achieved, the invention is not limited in this regard.

[0050] In an optional embodiment, the inner box 2 is provided with a hollow cavity 24 for accommodating the retractable conductive component 33 and a through hole (not shown in the figure) through which the retractable conductive component 33 passes. The diameter of the through hole can be slightly larger than the outer diameter of the retractable conductive component 33 to facilitate the free extension and retraction of the retractable conductive component 33. The hollow cavity 24 can be located on one side of the inner box 2 or at the end of the inner box 2 away from the pull cord 23. The hollow cavity 24 can be fixed to one side of the inner box 2 by a plate of the same material as the inner box 2, so that it is spaced apart from the side wall of the inner box 2, thereby forming the hollow cavity 24, providing installation space for the retractable conductive component 33, isolating it from the product to be contained (jewelry, gifts, etc.), preventing the retractable conductive component 33 from being exposed when the inner box 2 is pulled out, and also preventing the product from squeezing the retractable conductive component 33 and affecting its extension and retraction performance.

[0051] Please continue reading. Figures 1 to 5 The inner wall of the outer box 1 is provided with a first locking member 14, and the outer wall of the inner box 2 is provided with a second locking member 25 that cooperates with the first locking member 14 to lock.

[0052] The first locking member 14 can also be made of rigid sheet metal (preferably the same material as the outer box 1), which can be designed as an integral part of the outer box sheet metal and can be processed with V grooves or indentations simultaneously with the outer box. After the outer box 1 is formed, the first locking member 14 is located on the left and right sides of the opening of the outer box 1 and extends into the cavity.

[0053] Correspondingly, the second locking member 25 can also be made of rigid plate (preferably the same material as the inner box 2). By integrating it with the inner box 2 plate and preparing it with the inner box 2 through V-groove or indentation, after the inner box 2 is formed, it is fixedly set on the outer sides of the non-pull-out end (i.e. the rear end) of the inner box 2. After the inner box 2 is inserted into the outer box 1, when the inner box 2 is pulled out and moved to the opening of the outer box 1, the first locking member 14 and the second locking member 25 engage to prevent the inner box 2 from falling out of the outer box 1 due to excessive pull-out stroke.

[0054] This packaging box employs a dual-conductor vertical contact separation triboelectric nano-power generation structure. Its power generation principle is based on the contact electrification effect and the matching characteristics of the conductor's Fermi level and density of states. In this invention, the first friction layer is a PEDOT:PSS conductive polymer film, and the second friction layer is a metallic conductor. The two conductor materials exhibit significant differences in electron affinity and Fermi level. When they come into physical contact, free electrons from the material with the higher Fermi level will directionally transfer to the material with the lower Fermi level until the Fermi levels of the two conductors reach equilibrium, resulting in equal amounts of opposite charges accumulating on the surfaces of the two friction layers. During the inner box's pull-out process, the separating element moves along the concave-convex structure of the support, causing the two friction layers to periodically separate vertically, creating a stable potential difference between the opposite charges at the interface. Since the two friction layers simultaneously act as the friction interface and electrodes, the charge can be rapidly conducted outwards along the circuit composed of pre-embedded wires and retractable conductive components. When the two friction layers come into contact again, the potential difference disappears, and electrons flow in the opposite direction. This repeated contact and separation creates a continuous alternating current in the circuit. Once the current reaches the conductive layer of the outer casing, touching this layer forms a closed loop, allowing the user to perceive a dynamic microcurrent within a safe range. Compared to traditional dielectric triboelectric structures, the two-conductor system has a higher density of states near the Fermi level, greater charge transfer, and superior power generation performance. It also effectively suppresses charge leakage in high-humidity environments, ensuring stable power generation.

[0055] In one application embodiment, the formula for calculating the alternating current flowing through the conductive layer generated when the inner box 2 of the packaging box of the present invention is pulled out is as follows:

[0056] Where U is the output voltage of the triboelectric generator module, and R... 导电层 R is the resistance of the conductive layer, which is the external resistance of the triboelectric power generation module. 内阻 I is the internal resistance of the triboelectric power generation module. 输出 This is the output current of the triboelectric generator module.

[0057] The safe AC current sensing threshold for the human body is 0.6mA to 1.5mA. This range refers to the AC current value that, when passing through the human body, will cause a perceptible sensation, resulting in a slight tingling feeling. Furthermore, continuously touching the surface of the packaging box and pulling out the inner box at a uniform speed will produce a certain rhythmic tactile sensation. Based on this, an object with this sensing threshold can be organically integrated with the existing packaging surface, so that during use, the packaging will produce a certain rhythmic tactile effect when touched by the human body.

[0058] Based on the aforementioned packaging box, the present invention also provides a method for preparing the aforementioned packaging box with tactile effects. Please refer to [link to relevant documentation]. Figure 6 The preparation method includes: S10. After printing a conductive layer on the surface of the outer box paper, it is laminated with the outer box board and then die-cut, V-groove or creasing to obtain the outer box unfolding blank. A support body covered with the first friction layer is bonded to the inner side of the outer box unfolding blank, and the sides of the outer box unfolding blank are coated with glue to fix it into an outer box. S20. Die-cut the inner box sheet, and make V-grooves or indentations to obtain the inner box unfolded blank. Attach the second friction layer, the separator and the elastic compressible part to the inner box unfolded blank, and electrically connect one end of the stretchable conductive part to the second friction layer. Apply glue to the side of the inner box unfolded blank to fix it into an inner box. S30. Connect the other end of the retractable conductive component to the conductive layer of the outer box, and install the inner box into the outer box; S40. When the inner box is pulled out and slides relative to the outer box, the cooperation between the separator and the support causes the second friction layer to intermittently contact and separate from the first friction layer, generating alternating current, which is transmitted to the conductive layer via the retractable conductive member.

[0059] In this process, steps S10 and S20 are the assembly processes of outer box 1 and inner box 2, respectively. The triboelectric power generation module is installed on outer box 1 and inner box 2 during the assembly process, and the inner box 2 and outer box 1 are electrically connected through the retractable conductive component 33 in step S30.

[0060] In step S10, before the outer box 1 is glued and molded, the method further includes: pre-embedding a wire 13 in the support body 11, and connecting one end of the wire 13 to the first friction layer 31, and connecting the other end of the wire 13 to the conductive layer.

[0061] In step S20, before the inner box 2 is glued and molded, the following steps are also included: inserting the retractable conductive member 33 into the hollow cavity 24 of the inner box 2, so that one end of the retractable conductive member 33 is electrically connected to the second friction layer 32, and the other end of the retractable conductive member 33 is connected to the conductive layer of the outer box 1 through the inner box 2.

[0062] The preparation of this application mainly includes three parts: outer box 1, inner box 2, and triboelectric module. To better understand the tactile packaging box of the present invention, the following uses the outer box 1 (30cm long, 20cm wide, and 12cm high) as an application example to describe the packaging box of the present invention in detail: 1. Preparation of the outer box 1 of the packaging box: 1) Preparation of outer box paper The outer box liner is preferably made of double-sided coated paper with a low basis weight (the basis weight range of double-sided coated paper is 120g / m2 to 157g / m2). A conductive layer is printed on the surface of the outer box liner, and the printing method is preferably screen printing, gravure printing, flexographic printing, offset printing or inkjet printing.

[0063] When using screen printing, the preferred screen mesh count is 120 mesh / inch to 180 mesh / inch. The conductive ink used for the conductive layer should preferably be a metal-based, carbon-based, polymer-based, or composite conductive ink with good adhesion and flexibility. For metal-based conductive inks, nano-silver paste ink is preferred, with a volume resistivity of 1.59 × 10⁻⁶. -8 Ω·m~1.65×10 -8 Ω·m; The preferred carbon-based conductive ink is a water-based carbon-based conductive ink synthesized with superconducting carbon black as filler, with a volume resistivity of approximately 8.98 × 10 Ω·m. -3 Ω·m; PEDOT:PSS conductive ink is preferred among polymer-based conductive inks, with a volume resistivity of approximately 2.22 × 10⁻⁶ Ω·m. -5 Ω·m; The preferred composite conductive ink is a copper-silver composite ink with a volume resistivity of approximately 9.06 × 10⁻⁶. -7 Ω·m.

[0064] When using carbon-based conductive ink, a conductive layer with a dry ink layer thickness of not less than 5µm is obtained by screen printing water-based carbon-based conductive ink on double-sided coated paper.

[0065] 2) Calculation and fabrication of the conductive layer resistance of the outer box linerboard: Based on the length, width, and height of outer box 1 and the unfolded structure of the outer box paper, the conductive layer can be simplified into a sheet-like cuboid structure with a length L, width W, and thickness T of (12×2+20×2)cm=0.64m, 30cm=0.3m, and 5um=5×10⁻⁶ respectively. -6 m, and then composite the conductive layer with the outer box paper.

[0066] The resistance R of the conductive layer can be calculated using the formula for the thin-film resistance of polymer conductive films. 导电层 as follows: R 导电层 =(ρ×L) / (W×T)=[8.98×10 -3 [×0.64] / [0.3×5×10 -6 ] = 3.83 × 10 3 Ω Where: ρ is the volume resistivity of the conductive layer (Ω·m), L is the length of the conductive layer (m), W is the width of the conductive layer (m), and T is the thickness of the conductive layer (m).

[0067] 3) Prepare the outer box 1 unfolded blank, and design the outer box 1 and the first locking member 14 as an integral structure: Choose medium or heavy gray cardboard (grammage range of 250 g / m²). 2 ~350g / m 2 The outer box 1 with the first locking element 14 is designed according to the structure of the outer box 1, and then sent to the die-cutting equipment to cut out the unfolded blank of the outer box 1 with the first locking element.

[0068] Next, make indentations or V-grooves at the bends of outer box 1.

[0069] Subsequently, a wire 13 is pre-embedded in the support body 11, and one end of the wire 13 is connected to the first friction layer 31 on the support body 11. The support body 11 is then bonded to one side of the outer box 1 unfolded blank (such as the inner wall of the bottom plate after the outer box 1 is formed), and the other end of the wire 13 is connected to the conductive layer.

[0070] Then, the sides of the outer box 1 are glued together to form a cuboid cavity with an opening on one side, and the first locking member 14 is fixedly installed on the two inner sides of the inner wall of the outer box 1 on the left and right sides of the opening of the cuboid cavity and extends into the cavity.

[0071] 4) The outer box 1 surface layer is laminated with the outer box 1 panel: The outer box liner is glued to the surface of the outer box 1 using mechanical or manual adhesive, thereby preparing the outer box 1 of the pull-out packaging box.

[0072] 2. Preparation of the inner box 2 of the packaging box: Based on the design tolerances of the inner box 2 and the inner box 1 (considering the thickness of the negative friction layer at the bottom) (the tolerance range for length and width is ±1.5mm, and the tolerance range for height is ±1.0mm), design the length, width, and height of the inner box 2 of the pull-out packaging box.

[0073] 1) Prepare the unfolded blank of the inner box 2, and design the inner box 2 and the second locking member 25 as an integral structure: The inner box 2 is made of the same gray cardboard as the outer box 1. It is die-cut according to the structural design of the inner box 2 and the second locking part 25 to form the unfolded blank of the inner box 2.

[0074] Next, make indentations or V-grooves at the bends of inner box 2.

[0075] Then, the sides of the inner box 2 are glued together to form a rectangular cavity with an open top surface. The second locking member 25 is fixedly installed on the two sides of the rear side of the inner box 2 and extends to the front side of the outer side of the inner box 2. Thus, when the inner and outer boxes 1 are assembled and the inner box 2 is pulled to the opening of the outer box 1, the first locking member 14 and the second locking member 25 engage.

[0076] Before the inner box 2 is inserted into the outer box 1, a partition 26 needs to be installed in the inner box 2 to form a hollow double-layer structure.

[0077] 2) Install the elastic compressible component 22: The elastic compressible component 22 is preferably made of a low-hardness elastic material such as EVA, with a height preferably 1cm to 3cm and a thickness not exceeding the thickness of the inner box 2's sheet material. Its length is the same as the length of the corresponding side panel of the inner box 2. During installation, it can be glued to the top of the three sides of the inner box 2 other than the pull-out side, so that the top surface of the elastic compressible component 22 is at the same height as the top surface of the pull-out side of the inner box 2, and so that the inner and outer boxes 1 can be assembled and matched.

[0078] 3. Preparation and installation of triboelectric power generation modules: The triboelectric power generation module can be prepared before or simultaneously with the outer box 1 and inner box 2, and the module is installed in the corresponding positions of the inner and outer boxes 1 during the forming of the outer and inner boxes 2. This invention organically integrates the structure of the vertical contact triboelectric power generation module with a pull-out packaging structure, based on the performance and principle of the existing vertical contact triboelectric power generation module. First, a positive friction layer, a separator 21, a connector between the positive electrode and the outer box paper (such as double-sided sticker), a negative friction layer, and a connector between the negative electrode and the outer box paper (such as double-sided sticker) are prepared; then, the first three are installed in the inner box 2, and the latter two are installed in the outer box 1; finally, the positive electrode is connected to the outer box paper, and the inner and outer boxes 1 are assembled to complete the installation of the triboelectric power generation module. Its main components include: 1) Preparation and installation of the first friction layer 31 (i.e., the negative friction layer): The negative friction layer is made by bonding a polymer conductor film to the upper surface of the support 11. The support 11 is preferably made of a sheet-like hard material such as EVA with high hardness (50°~90°) (the size is the same as the bottom of the inner part of the outer box 1). The upper surface of the support 11 has equidistantly arranged recesses 12 (the spacing of the recesses 12 is the same as the width of the first friction layer 31). The recesses 12 are semi-cylindrical grooves and are slightly larger than the friction separator 21. The support 11 is fixedly installed to the bottom of the inner part of the outer box 1 by adhesive. The polymer conductor film is preferably PEDOT:PSS, etc., and its size is the same as the upper surface of the support 11. It is tightly attached to the protrusions and recesses 12 on the upper surface of the support 11 by adhesive.

[0079] 2) Preparation and installation of the connector between the negative electrode and the outer box liner: The negative electrode and outer box paper connector mainly consists of wire 13, wire 13 and negative electrode contact (such as double-sided sticker), wire 13 and outer box 1 contact (such as double-sided sticker), etc. Wire 13 (with negligible resistance) is placed in the vertical through hole of support 11; the upper end of wire 13 (i.e. wire 13 and negative electrode contact) is connected to the polymer conductor film of negative friction layer, preferably by a clip connection; the lower end of wire 13 (i.e. wire 13 and outer box 1 contact) is connected to the conductive layer of outer box paper through the bottom outer box 1 plate hole and the bottom outer box paper hole, preferably by a clip connection.

[0080] 3) Preparation and installation of the second friction layer 32 (i.e., the positive friction layer): The positive friction layer is made of a rectangular thin sheet of metallic copper (the thickness is negligible relative to the radius of the separating component 21); its length is no greater than the width of the inner box 2 and preferably the same as the width of the inner box 2, with a preferred size range of 1 cm. 2 ~25cm 2 Further optimization of 9cm 2 ~25cm 2 It is fixed to the rear part of the lower surface of the inner box 2 by adhesive.

[0081] 4) Preparation and installation of separator 21: The separating component 21 is a semi-cylindrical rigid material, which can be made of plastic, metal, wood, etc., preferably plastic; its radius is preferably 3mm to 10mm, more preferably 6mm, and its length is the same as the positive friction layer; the separating components 21 (several ≥1) are arranged at equal intervals perpendicular to the pulling direction of the packaging box and glued to the lower surface of the inner box 2 near the positive friction layer.

[0082] 5) Preparation and installation of the connector between the positive electrode and the outer box liner: The positive electrode and outer box paper connector mainly consists of a conductive spiral wire, a first terminal of the conductive spiral wire, a second terminal of the conductive spiral wire, etc. The conductive spiral wire is a spiral wire 13 (resistance negligible). When the inner box 2 is assembled, it is inserted into the bottom rear end of the hollow double-layer structure of the inner box 2 parallel to the pull-out direction. Its front end coil is fixed to the inner wall of the inner box 2 by adhesive. The first terminal of the spiral wire is connected to the second friction layer 32 through the bottom inner box 2 plate hole, preferably by snap-fit, fastening, or pin connection. The second terminal of the spiral wire is connected to the conductive layer on the outer box paper through the rear end through hole of the inner box 2, the same side outer box 1 plate hole, and the same side outer box paper hole, preferably by snap-fit ​​connection.

[0083] 4. Assemble and use the pull-out packaging box: After the inner box 2 is installed into the outer box 1, this triboelectric power generation module converts mechanical energy into electrical energy through contact electrification: the second friction layer (metal positive electrode) and the first friction layer (PEDOT:PSS negative electrode) are two different conductors, and a large number of electrons are transferred at the contact interface, forming opposite static charges; when the two friction layers separate vertically, a potential difference is generated, driving electrons to move directionally in the external circuit. When they come into contact again, the electrons flow back in the opposite direction, and the periodic action continuously generates alternating current. During the process of pulling the inner and outer boxes 1, the inner box 2 will move up and down at a certain frequency, synchronously causing the positive and negative friction layers to collide and separate at the same frequency, thereby generating a safe micro-alternating current for the human body.

[0084] The following are some application examples of generating safe micro-AC current using positive friction layers of different sizes: a) If the size of the positive friction layer is 9cm 2At that time, the output voltage U of the triboelectric generator module is approximately 900V, the output current I is approximately 1200uA, and the internal resistance is 900 / (1200×10). -6 ) = 7.5 × 10 5 Ω, resistivity of water-based carbon conductive ink: 8.98×10 -3 Ω*m, conductive layer resistance: 8.98×10 -3 ×0.64 / (0.3×5×10 -6 =3831.5Ω =3.83×10 3 Ω, at this time the value of the alternating current I flowing through the conductive layer of the outer box 1 is calculated as follows: = ==1.2mA Where: U is the output voltage (V) of the triboelectric generator module; R 导电层 The resistance (Ω) of the full-coverage conductive layer printed on the first surface of the outer box; R 内阻 I is the internal resistance (Ω) of the triboelectric power generation module. 输出 The output current (A) of the triboelectric generator module is negligible, where the internal cathode of the human body is ignored.

[0085] It should be noted that the harm of electricity to the human body depends primarily on the magnitude of the current, not the voltage. When current passes through the human body, it can interfere with the nervous system, damage cells, or cause burns. Voltage is merely a condition that "drives" the current. If the current is limited to a safe range, such as below 10mA, even if the voltage is high, the actual danger will be significantly reduced. Furthermore, the triboelectric power generation module of this invention generates discontinuous current that does not continuously act on the human body, thus further reducing the danger.

[0086] b. If the size of the positive friction layer is 1cm 2 At that time, the output voltage U of the triboelectric generator module is approximately 500V, the output current I is approximately 900uA, and the internal resistance is 500 / (900×10). -6 ) = 5.56 × 10 5 Ω, resistivity of water-based carbon conductive ink: 8.98×10 -3 Ω*m, conductive layer resistance: 8.98×10 -3 ×0.64 / (0.3×5×10 -6 If the resistance is 3831.5Ω, then the total resistance is 5.56 × 10⁻⁶. 5 +3831.5=559831.5Ω, at this time the current is 500 / 559831.5=0.00089A=0.89mA.

[0087] Therefore, the alternating current value of the conductive layer is within the threshold range that is safe for the human body and can produce a slight tingling sensation. Thus, when using a pull-out packaging box, the hand touching the conductive layer of the outer box 1 during the pulling of the inner and outer boxes 1 will produce a rhythmic tactile effect. Based on the preparation of the conductive layer through printing conductive ink coating, other tactile printing processes (such as frosting, snowflake, printed flocking, embossing, etc.) can be further combined to enrich the tactile experience beyond the rhythmic tactile effect of the conductive layer.

[0088] In summary, the present invention has the following beneficial effects: 1. This invention abandons the traditional packaging model that relies solely on embossing, lamination, and tactile ink to create a static physical tactile feel. Instead, it uses the mechanical action of pulling out the inner box to drive the triboelectric power generation module, which autonomously generates a safe microcurrent. Users can perceive a continuously changing rhythmic tingling sensation when touching the conductive layer of the outer box, thus realizing dynamic interaction between the packaging and the consumer and significantly improving the product user experience.

[0089] 2. The entire packaging box relies on the friction of two conductors to convert mechanical energy into electrical energy, eliminating the need for batteries, external power supplies, and matching power lines. This simplifies the overall packaging structure, avoids problems such as battery aging, leakage, replacement, and complicated external wiring, reduces assembly difficulty and production costs, and is suitable for mass production and long-term use of packaging.

[0090] 3. This solution uses PEDOT:PSS conductive polymer and metal to form a two-conductor triboelectric power generation system. Compared with the traditional dielectric triboelectric power generation structure, it has higher charge transfer efficiency and more stable output current.

[0091] 4. This invention deeply integrates the irregular support, separable parts, elastic compressible parts, built-in conductive circuits and triboelectric power generation module into the packaging box structure. The overall design, component assembly and supporting manufacturing process are far more complex than ordinary tactile packaging, making it difficult to be easily copied. It can effectively build technical barriers and protect the brand image and product differentiation advantages.

[0092] 5. By matching the resistance of the conductive layer and the internal resistance of the triboelectric generation module, the output current is strictly controlled within the range of 0.6mA to 1.5mA, which is perceptible and safe for the human body. The weak alternating current will not cause harm to the human body. At the same time, it can be combined with conventional packaging tactile processes such as frosting, embossing, and flocking to further enrich the tactile expression. It is suitable for various pull-out packaging scenarios such as gifts and high-end consumer goods.

[0093] 6. The inner and outer boxes are equipped with elastic compressible parts and arc-shaped separation parts and supports, which make the pulling process smooth and reduce the risk of jamming; the locking structure can prevent the inner box from coming out completely, and the force on each moving and conductive part is reasonable, which effectively extends the overall service life of the packaging box.

[0094] It is understood that those skilled in the art can make equivalent substitutions or modifications to the technical solution and inventive concept of the present invention, and all such substitutions or modifications should fall within the protection scope of the appended claims.

Claims

1. A packaging box with a tactile effect, characterized in that, It includes an outer box (1), an inner box (2) that can slide in the outer box (1), and a triboelectric power generation module for generating microcurrents when the inner box (2) slides relative to the outer box (1); The outer box (1) is provided with an outer box paper that can conduct electricity, and a conductive layer is provided on the outer box paper. A support body (11) is provided in the outer box (1), and a number of recesses (12) are provided on the support body (11). The inner box (2) is disposed in the outer box (1). The surface of the inner box (2) that contacts the support (11) is provided with a separating member (21). The side of the inner box (2) and the product loading / unloading port side away from the support (11) are provided with an elastic compressible member (22). The triboelectric power generation module includes a first friction layer (31), a second friction layer (32), and a retractable conductive element (33). The first friction layer (31) is disposed at the support body (11) and / or the recess (12). The first friction layer (31) is electrically connected to the conductive layer. The second friction layer (32) is electrically connected to the conductive layer through the retractable conductive element (33) and the outer box paper. The first friction layer (31) and the second friction layer (32) are made of different materials. When the inner box (2) slides relative to the outer box (1), the cooperation between the separator (21) and the support (11) causes the second friction layer (32) and the first friction layer (31) to intermittently contact and separate, generating a safe micro AC current for human body, which is transmitted to the conductive layer via the retractable conductive member (33).

2. The packaging box with tactile effect according to claim 1, characterized in that, The retractable conductive element (33) is a conductive spiral. The spiral body of the retractable conductive element (33) is fixed on the inner box (2). The first terminal of the retractable conductive element (33) is electrically connected to the second friction layer (32). The second terminal of the retractable conductive element (33) passes through the inner box (2) and the outer box paper and is electrically connected to the conductive layer.

3. The packaging box with tactile effect according to claim 1 or 2, characterized in that, The inner box (2) is provided with a hollow cavity (24) for accommodating the retractable conductive element (33) and a through hole for the retractable conductive element (33) to pass through.

4. The packaging box with tactile effect according to claim 1 or 2, characterized in that, The inner wall of the outer box (1) is provided with a first locking member (14), and the outer wall of the inner box (2) is provided with a second locking member (25) that cooperates with the first locking member (14) to lock.

5. The packaging box with tactile effect according to claim 1 or 2, characterized in that, The recess (12) is an arc-shaped groove, which is evenly distributed on the support (11), and the separator (21) is an arc-shaped separator.

6. The packaging box with tactile effect according to claim 1 or 2, characterized in that, The conductive layer is a conductive ink layer, the first friction layer (31) is a polymer conductor film, and the second friction layer (32) is a metal layer.

7. The packaging box with tactile effect according to claim 1 or 2, characterized in that, The formula for calculating the alternating current flowing through the conductive layer is as follows: Where U is the output voltage of the triboelectric generator module, and R... 导电层 R is the resistance of the conductive layer. 内阻 I is the internal resistance of the triboelectric power generation module. 输出 This is the output current of the triboelectric generator module.

8. A method for preparing a packaging box with a tactile effect as described in claim 1, characterized in that, include: After printing a conductive layer on the surface of the outer box paper, it is laminated with the outer box board. The outer box unfolding blank is obtained by die cutting, V-groove or creasing. A support body covered with a first friction layer is bonded to the inside of the outer box unfolding blank, and the sides of the outer box unfolding blank are glued and fixed to form an outer box. Die-cut the inner box sheet, V-groove or indentation to obtain the inner box unfolded blank, then bond the second friction layer, the separator and the elastic compressible part to the inner box unfolded blank, and electrically connect one end of the stretchable conductive part to the second friction layer. Apply glue to the side of the inner box unfolded blank to fix it into an inner box. Connect the other end of the retractable conductive component to the conductive layer of the outer box, and then place the inner box inside the outer box. When the inner box is pulled out and slides relative to the outer box, the cooperation between the separator and the support causes the second friction layer to intermittently contact and separate from the first friction layer, generating alternating current, which is transmitted to the conductive layer via the retractable conductive member.

9. The preparation method according to claim 8, characterized in that, The process of printing a conductive layer on the surface of the outer box linerboard and then laminating it with the outer box board, followed by die-cutting, V-grooving, or creasing to obtain an outer box unfolded blank, bonding a support body with a first friction layer to the inner side of the outer box unfolded blank, and applying adhesive to the sides of the outer box unfolded blank to fix it into an outer box, further includes: A wire is pre-embedded in the support body, with one end of the wire connected to the first friction layer and the other end connected to the conductive layer.

10. The packaging box with tactile effect according to claim 8, characterized in that, The process of die-cutting the inner box sheet material, creating V-grooves or indentations to obtain an inner box unfolded blank, bonding a second friction layer, a separator, and an elastic compressible component to the inner box unfolded blank, electrically connecting one end of the stretchable conductive component to the second friction layer, and applying adhesive to the sides of the inner box unfolded blank to fix it into an inner box, further includes: The retractable conductive component is installed in the hollow cavity of the inner box, so that one end of the retractable conductive component is electrically connected to the second friction layer, and the other end of the retractable conductive component is connected to the conductive layer of the outer box through the inner box.

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