A card protector with anti-slip function
By using the interlocking design of the anti-slip strip and the card slot, and the reinforcing rib structure, the problem of unstable edge fixation of the card protector is solved, improving the anti-slip performance of the card protector and the stability of card use, and adapting to various environmental conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU HUADA LAMINATING FILM CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-30
AI Technical Summary
Existing card protector films are not securely fixed to the edges of cards, easily lifting or falling off. Furthermore, in humid or oily environments, the coefficient of friction decreases, causing the cards to slip off, affecting their appearance and lifespan.
It adopts an anti-slip strip and card slot design, combined with reinforcing ribs and adhesive layer, to fix the edge of the card through physical interlocking, and to set raised particles and anti-slip texture on the surface of the anti-slip strip to enhance friction performance.
It effectively prevents card edges from curling up and slipping, enhances the card's anti-slip performance and stability, adapts to different weather conditions, and maintains the integrity and aesthetics of the card edges.
Smart Images

Figure CN224420314U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of card protector technology, specifically a card protector with anti-slip function. Background Technology
[0002] As is well known, existing card protectors, such as those for ID cards, bank cards, and membership cards, typically hold the card in place using heat pressing or adhesive. Their main function is to protect the card surface from scratches, stains, or water damage. However, in practical applications, traditional card protectors rely primarily on direct adhesive bonding for edge fixation. At the card edges, the adhesive area is relatively small, and prolonged use or external forces such as bending or impact can easily cause the edges to lift or detach, exposing the card corners. This not only affects aesthetics but may also lead to wear or damage to the card corners due to direct external force. When the card is bent, stress concentration at the edges can easily cause the card protector to separate from the card, especially at the four corners, where the risk of separation is higher. For example, frequent bending of ID cards can cause the card protector edges to lift, even exposing the internal chip. The surface of the card protector is usually made of a smooth material such as ordinary PET or PVC film. When holding or handling the card, in humid, sweaty, or oily environments, the coefficient of friction on the smooth surface drops sharply, potentially causing the card to slip. Therefore, it is necessary to propose a solution to this technical problem. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] To address the shortcomings of existing technologies, this utility model provides a card protector with anti-slip function.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, this utility model provides the following technical solution: a card protector with anti-slip function, comprising an upper film and a lower film, both sides of the upper film and the lower film being provided with anti-slip textures, a fastening mechanism being provided between the upper film and the lower film, the fastening mechanism including an anti-slip strip, a film groove and a card slot being provided on one side of the anti-slip strip, two film grooves being provided and symmetrically arranged, the card slot being located between the two film grooves, reinforcing ribs being provided inside the anti-slip strip, an adhesive layer being provided on the card slot, and two fastening mechanisms being provided and symmetrically arranged.
[0007] Furthermore, an improvement of this utility model is that the reinforcing ribs are mesh-like, strip-like, or wavy structures.
[0008] Furthermore, an improvement of this utility model is that the adhesive layer is a peelable adhesive layer.
[0009] Furthermore, the present invention is improved in that the surface of the anti-slip strip is provided with raised particles, which are rubber particles.
[0010] Furthermore, an improvement of this utility model is that the anti-slip strip is made of high and low temperature resistant rubber material.
[0011] Furthermore, an improvement of this utility model is that the inner wall of the membrane groove is provided with anti-slip texture.
[0012] Furthermore, an improvement of this utility model is that the outer surface of the anti-slip strip is provided with an anti-fingerprint coating.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, this utility model provides a card protector with anti-slip function, which has the following beneficial effects:
[0015] This card protector with anti-slip function uses an anti-slip strip and card slot design in its fastening mechanism to physically fit the upper and lower films of the card protector to the card edge, rather than relying solely on adhesives. After the card slot of the anti-slip strip is aligned with the edge of the card protector, the adhesive layer firmly bonds the card to the anti-slip strip. The upper and lower films are embedded in the film slots to ensure that the edges are not exposed. The anti-slip strips are symmetrically arranged on both sides of the card. The upper and lower films are embedded in the film slots to avoid stress concentration at the edges. When the card is bent by external force, the rigid structure of the anti-slip strips can evenly distribute the stress and prevent the edges from lifting due to excessive local stress. Both sides of the upper and lower films are designed with anti-slip textures to increase the coefficient of friction, ensuring both light transmittance and improved anti-slip performance. Reinforcing ribs are set inside the anti-slip strips to enhance their rigidity and toughness. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ;
[0017] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ;
[0018] Figure 3 This utility model Figure 1 Enlarged half-sectional view of the structure of the anti-slip strip;
[0019] Figure 4 This utility model Figure 1 Enlarged structural disassembly view of the middle anti-slip strip, front half-section.
[0020] In the diagram: 1. Upper membrane; 2. Lower membrane; 3. Anti-slip strip; 4. Membrane groove; 5. Card slot; 6. Reinforcing rib; 7. Adhesive layer; 8. Raised particles. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-4 This utility model is a card protector with anti-slip function, including an upper film 1 and a lower film 2. Both sides of the upper film 1 and the lower film 2 are provided with anti-slip textures. A fastening mechanism is provided between the upper film 1 and the lower film 2. The fastening mechanism includes an anti-slip strip 3. One side of the anti-slip strip 3 has a film groove 4 and a slot 5. Two film grooves 4 are provided and symmetrically arranged. The slot 5 is located between the two film grooves 4. The anti-slip strip 3 has a reinforcing rib 6 inside. An adhesive layer 7 is provided on the slot 5. Two fastening mechanisms are provided and symmetrically arranged. In this embodiment, the upper film 1 is attached to one side of the card protector, and the lower film is attached to the other side of the card protector. Then, the slot 5 of the anti-slip strip 3 in the fastening mechanism is aligned and pressed against the card protector. On one side of the card protector, the card protector is securely attached to the card slot 5 via the adhesive layer 7. The upper film 1 and the lower mold are attached to the corresponding film slots 4, thereby ensuring that the anti-slip strip 3 firmly and reliably fixes the upper film 1, the lower mold, and the side of the card protector together, preventing the upper film 1 or the lower film 2 from lifting off the edges and preventing the side of the card protector from being damaged by bumps. The reinforcing ribs 6 inside the anti-slip strip 3 can improve the structural strength and toughness of the anti-slip strip 3, preventing the card protector from bending. The anti-slip textures on both sides of the upper film 1 and the lower film 2 can improve the anti-slip performance between the card protector and the user's grip, preventing the user's hand from slipping. The upper film 1 and the lower film 2 are made of transparent PET or PVC conventional card protector film materials.
[0023] The reinforcing ribs 6 have a mesh, strip, or wavy structure. This structure enhances the structural strength and toughness of the anti-slip strip 3. The adhesive layer 7 is a peelable adhesive layer, for example, using a low initial tack, high holding power pressure-sensitive adhesive, such as acrylic. The peelable design allows for easy insertion and removal of cards while maintaining their fixation. The surface of the anti-slip strip 3 is provided with raised particles 8, which are rubber particles. These particles further improve the anti-slip performance of the anti-slip strip 3. The rubber particles are wear-resistant and have a comfortable feel. The anti-slip strip 3 is made of high and low temperature resistant rubber, making it suitable for use in extremely cold and hot weather conditions, preventing cracking due to extreme weather. The inner wall of the membrane groove 4 has anti-slip textures, which improve the anti-slip relationship between the membrane groove 4 and the upper membrane 1 or lower membrane 2. The outer surface of the anti-slip strip 3 is provided with an anti-fingerprint coating. The anti-fingerprint coating reduces the adhesion of hand sweat and oil, keeps the surface of the anti-slip strip 3 clean and the anti-slip effect lasting, such as a fluoropolymer or nano silica coating.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A card protector with anti-slip function, comprising an upper film (1) and a lower film (2), characterized in that, Both sides of the upper membrane (1) and the lower membrane (2) are provided with anti-slip textures. A fastening mechanism is provided between the upper membrane (1) and the lower membrane (2). The fastening mechanism includes an anti-slip strip (3). A membrane groove (4) and a slot (5) are provided on one side of the anti-slip strip (3). There are two membrane grooves (4) and they are arranged symmetrically. The slot (5) is located between the two membrane grooves (4). A reinforcing rib (6) is provided inside the anti-slip strip (3). An adhesive layer (7) is provided on the slot (5). There are two fastening mechanisms and they are arranged symmetrically.
2. The card protector with anti-slip function according to claim 1, characterized in that, The reinforcing rib (6) has a grid-like, strip-like, or wavy structure.
3. The card protector with anti-slip function according to claim 1, characterized in that, The adhesive layer (7) is a peelable adhesive layer (7).
4. The card protector with anti-slip function according to claim 1, characterized in that, The surface of the anti-slip strip (3) is provided with raised particles (8), which are rubber particles.
5. A card protector with anti-slip function according to claim 1, characterized in that, The anti-slip strip (3) is made of high and low temperature resistant rubber.
6. A card protector with anti-slip function according to claim 1, characterized in that, The inner wall of the membrane groove (4) is provided with anti-slip texture.
7. A card protector with anti-slip function according to claim 1, characterized in that, The outer surface of the anti-slip strip (3) is provided with an anti-fingerprint coating.