An ENFC card packaging structure with signal shielding function
By using a composite packaging structure with signal shielding design, the problems of accidental triggering and information leakage of NFC cards in the unopened state are solved, and the cards can be used normally after being opened.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- EMPOWERMENT POINT ASSISTANT (SHANGHAI) INFORMATION CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-06-19
AI Technical Summary
NFC cards may be accidentally triggered or have their information leaked if they are not opened, leading to unauthorized transactions, security risks, and a poor user experience.
The composite packaging structure utilizes the electromagnetic shielding properties of the aluminum foil layer and the support of the packaging paper layer to form a signal isolation layer through a hot-pressing process, blocking NFC signals and ensuring that the card cannot be sensed when it is unopened.
It effectively prevents unopened cards from being mistakenly detected, protects information security, improves user experience, and allows cards to be used normally after being opened.
Smart Images
Figure CN224376479U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the fields of information security and near-field communication technology, specifically to an ENFC card packaging structure with signal shielding function. Background Technology
[0002] Near Field Communication (NFC) technology, with its convenient contactless interaction characteristics, has been widely used in payment cards, identity authentication cards, access control cards, gift cards, and other fields, bringing users a highly efficient "touch-to-connect" experience. However, in actual use, if the NFC card is in an unexpected state (such as unopened or ungiven), it can still be sensed and read, causing a series of problems: First, there is the risk of accidental activation, as the card may be activated in unexpected scenarios, such as when a user brings an unopened gift card close to their mobile phone, the card may automatically complete binding or consumption, causing unnecessary trouble; Second, there are privacy and security risks, as the identity information and balance data in the card may be read or even cloned by malicious devices, leading to information leakage or property loss; Third, the user experience is poor, as most users expect "activation upon opening" rather than "triggered upon unopening." To address this, we propose an ENFC card packaging structure with signal shielding capabilities. Utility Model Content
[0003] The purpose of this invention is to provide an ENFC card packaging structure with signal shielding function. It combines traditional packaging paper with aluminum foil, utilizing the electromagnetic shielding properties of aluminum foil to form an effective signal isolation layer. This prevents the card from being sensed by mobile phones or other devices while it is in packaging, thus solving the following problems: First, the risk of accidental activation, where the card may be activated in unexpected scenarios, such as when a user brings an unopened gift card close to a mobile phone, causing the card to automatically bind or make a purchase, resulting in unnecessary trouble; second, privacy and security risks, where the card's identity information, balance data, etc., may be read or even cloned by malicious devices, leading to information leakage or financial loss; and third, poor user experience, as most users expect "activation upon opening," rather than "triggered without opening."
[0004] To achieve the above objectives, this utility model provides the following technical solution: an ENFC card packaging structure with signal shielding function, including a card pack body, the card pack body having a placement slot, the card pack body including a packaging paper layer and an aluminum foil layer, the number of the packaging paper layers being two, the aluminum foil layer being located between the two packaging paper layers, the aluminum foil layer being bonded to the packaging paper layers by heat pressing.
[0005] Preferably, the packaging paper layer includes an outer layer, a middle layer, and an inner layer, wherein the outer layer is kraft paper, the middle layer is coated paper, and the inner layer is thin paper.
[0006] Preferably, the outer layer is located outside the middle layer, and the middle layer is located outside the inner layer.
[0007] Preferably, the outer layer has a thickness of 1-3 μm, the middle layer has a thickness of 1.5-2.4 μm, and the inner layer has a thickness of 3.5-4.6 μm.
[0008] Preferably, the card holder body is folded in half, and the thickness of the aluminum foil layer is 8-15 μm.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0010] 1. The card holder body of this utility model serves as the core packaging structure. Its placement slot can accurately accommodate ENFC cards, ensuring stable placement of the cards. The card holder body adopts a composite structure of "packaging paper layer - aluminum foil layer - packaging paper layer". The aluminum foil layer is located between the two layers of packaging paper and is tightly bonded through a hot-pressing process. It utilizes the electromagnetic shielding properties of aluminum foil to block NFC signals, while the packaging paper layer provides structural support and protection, preventing the aluminum foil from being damaged by bending or friction. This achieves the function of "packaging as shielding", effectively preventing unopened cards from being mistakenly sensed.
[0011] 2. The packaging paper layer of this utility model consists of an outer layer, a middle layer, and an inner layer. The outer layer is made of kraft paper, which has good abrasion resistance and tear resistance, protecting the overall structure of the packaging. The middle layer is made of coated paper, which improves the stiffness of the packaging and its printability. The inner layer is made of thin paper, which is soft and avoids scratching the surface of the ENFC card. The three layers work together to ensure the shielding function while taking into account the practicality and aesthetics of the packaging. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the unfolded structure of the card holder body of this utility model;
[0014] Figure 3 This is a schematic diagram of the card holder body structure of this utility model;
[0015] Figure 4 This is a schematic diagram of the packaging paper layer structure of this utility model.
[0016] In the diagram: 1. Card holder body; 2. Placement slot; 3. Wrapping paper layer; 301. Outer layer; 302. Middle layer; 303. Inner layer; 4. Aluminum foil layer. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0019] Example 1:
[0020] Please see Figure 1-4 As shown, this utility model provides an ENFC card packaging structure with signal shielding function, including a card pack body 1, a placement slot 2 on the card pack body 1, the card pack body 1 including a packaging paper layer 3 and an aluminum foil layer 4, the number of packaging paper layers 3 is two, the aluminum foil layer 4 is located between the two packaging paper layers 3, the aluminum foil layer 4 is bonded to the packaging paper layer 3 by heat pressing, the card pack body 1 is folded, and the thickness of the aluminum foil layer 4 is 8-15μm.
[0021] The card holder body 1 serves as the core packaging structure in this technical solution. Its placement slot 2 can accurately accommodate ENFC cards, ensuring stable placement of the cards. The card holder body 1 adopts a composite structure of "packaging paper layer 3 - aluminum foil layer 4 - packaging paper layer 3". The aluminum foil layer 4 is located between the two layers of packaging paper and is tightly bonded through a hot-pressing process. It utilizes the electromagnetic shielding properties of aluminum foil to block NFC signals, while the packaging paper layer 3 provides structural support and protection, preventing the aluminum foil from being damaged by bending or friction. This achieves the function of "packaging as shielding", effectively preventing unopened cards from being mistakenly sensed.
[0022] Example 2:
[0023] Based on Embodiment 1, this utility model is as follows: Figure 1-4 As shown, the packaging paper layer 3 comprises an outer layer 301, a middle layer 302, and an inner layer 303. The outer layer 301 is kraft paper, the middle layer 302 is coated paper, and the inner layer 303 is thin paper. The outer layer 301 is located outside the middle layer 302, and the middle layer 302 is located outside the inner layer 303. The thickness of the outer layer 301 is 1-3 μm, the thickness of the middle layer 302 is 1.5-2.4 μm, and the thickness of the inner layer 303 is 3.5-4.6 μm.
[0024] The packaging paper layer 3 of this technical solution consists of an outer layer 301, a middle layer 302, and an inner layer 303. The outer layer 301 is made of kraft paper, which has good abrasion resistance and tear resistance, protecting the overall structure of the packaging. The middle layer 302 is made of coated paper, which improves the stiffness of the packaging and its printability. The inner layer 303 is made of thin paper, which is soft and avoids scratching the surface of the ENFC card. The three layers work together to ensure the shielding function while taking into account the practicality and aesthetics of the packaging.
[0025] The working principle of this utility model is as follows: The ENFC card is placed in the placement slot 2 of the card holder body 1. The card holder body 1 forms a complete shielding space through a composite structure of "two layers of packaging paper 3 sandwiching an aluminum foil layer 4". The aluminum foil layer 4 is tightly bonded to the upper and lower packaging paper layers 3 through a hot-pressing process, ensuring full coverage of the ENFC card in the placement slot 2. Utilizing the electromagnetic shielding properties of aluminum foil, the aluminum foil layer 4 can block the transmission of NFC signals, forming a shielding effect similar to a "Faraday cage", so that the ENFC card in the unopened state cannot be sensed by external card readers, mobile phones and other devices, avoiding accidental triggering and information leakage. The outer layer 301, middle layer 302 and inner layer 303 of the packaging paper layer 3 provide wear-resistant protection, structural support and card protection, respectively, ensuring that the packaging is not easily damaged during transportation and storage. When the user opens the package, the folded card holder body 1 is opened, the aluminum foil layer 4 separates with the packaging paper layer 3, the shielding structure is destroyed, and the ENFC card can receive NFC signals normally, realizing the "open and activate" function.
[0026] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0027] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. An ENFC card packaging structure with signal shielding function, comprising a card package body (1), characterized in that: The card holder body (1) has a placement slot (2). The card holder body (1) includes a packaging paper layer (3) and an aluminum foil layer (4). There are two packaging paper layers (3). The aluminum foil layer (4) is located between the two packaging paper layers (3). The aluminum foil layer (4) is bonded to the packaging paper layer (3) by hot pressing.
2. The ENFC card packaging structure with signal shielding function according to claim 1, characterized in that: The packaging paper layer (3) includes an outer layer (301), a middle layer (302) and an inner layer (303). The outer layer (301) is kraft paper, the middle layer (302) is coated paper, and the inner layer (303) is thin paper.
3. The ENFC card packaging structure with signal shielding function according to claim 2, characterized in that: The outer layer (301) is located outside the middle layer (302), and the middle layer (302) is located outside the inner layer (303).
4. The ENFC card packaging structure with signal shielding function according to claim 2, characterized in that: The outer layer (301) has a thickness of 1-3 μm, the middle layer (302) has a thickness of 1.5-2.4 μm, and the inner layer (303) has a thickness of 3.5-4.6 μm.
5. The ENFC card packaging structure with signal shielding function according to claim 1, characterized in that: The card holder body (1) is folded in half, and the thickness of the aluminum foil layer (4) is 8-15μm.