Anti-illumination packaging film
By setting an aluminum-plated film and tapered flaps on the outer layer of the packaging film, the problem of poor light resistance of traditional packaging films is solved, and a significant improvement in light resistance and sunshade effect is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU ANRUOQI INNOVATIVE MATERIALS CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-05-26
AI Technical Summary
Existing traditional packaging films are less effective at preventing oxidation or deterioration from light exposure and cannot effectively block ultraviolet and visible light.
The outer layer uses an aluminum-coated film with tapered paddles and striped indentations. The tapered paddles can hold the sunshade film, and the combination of adhesive bumps and tear lines forms a peelable structure to enhance the sun protection effect.
The design of the aluminum-coated film and the tapered flaps significantly improves the light resistance of the packaging film, effectively reducing the intensity and directionality of light transmission. Temporary installation of a sunshade film can further enhance the light protection effect.
Smart Images

Figure CN224278260U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging film technology, and in particular to a light-resistant packaging film. Background Technology
[0002] Packaging film is a thin film material used to protect, preserve, or package products. Common types include PE, PP, and PET, and it is widely used in food, medicine, and industrial fields.
[0003] In some food and pharmaceutical packaging applications that are sensitive to light, existing traditional packaging films are mostly transparent and cannot effectively block ultraviolet and visible light. They rely on covering the product with a shade net to prevent it from oxidizing or deteriorating due to light exposure. However, this method has a weak shading effect and cannot effectively resist light exposure. Therefore, there is an urgent need for a light-resistant packaging film. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a light-resistant packaging film.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A light-resistant packaging film includes a packaging film body, wherein an aluminum-plated film is connected to the outer surface of the packaging film body by a plurality of adhesive protrusions, the aluminum-plated film is covered on the packaging film body, and a plurality of strip-shaped indentations are arranged at equal intervals on the aluminum-plated film.
[0007] The aluminum-coated film has multiple conical paddles symmetrically arranged in the middle, which are used to hold the sunshade film after being removed.
[0008] The conical lever includes a membrane body and a spring wire. The membrane body is conical and has a spring wire embedded inside. The wide side of the membrane body is connected to the aluminum-plated film, and the side of the membrane body adjacent to the wide side is connected to the aluminum-plated film body through a tear line.
[0009] In addition, a preferred structure is that a certain gap is left between the aluminized film and the packaging film body, and the height of the gap is the thickness of the bonding protrusion.
[0010] Furthermore, in a preferred configuration, a tear line is provided at 1m intervals in the middle of the aluminum-coated film.
[0011] In addition, a preferred structure is that the bottom surface of the adhesive protrusion is provided with an adhesive layer, which is connected to the packaging film body.
[0012] Furthermore, in a preferred configuration, one end of the spring wire is connected to the aluminum-plated film, and the other end extends into the interior of the film.
[0013] Furthermore, a preferred structure is that, in its natural state, the side of the spring wire has an upwardly concave arched shape.
[0014] The beneficial effects of this utility model are as follows:
[0015] In this invention, the packaging film body is provided with a peelable aluminized film through adhesive protrusions. The aluminized film, together with its strip-shaped indentation and its own characteristics, can effectively improve the anti-sunlight effect. Furthermore, several peelable conical paddles are provided on the aluminized film. After the paddles are removed, they can form a symmetrical clip-like mechanism to temporarily install the sunshade film, further improving the overall anti-sunlight effect of the packaging film. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a light-resistant packaging film proposed in this utility model;
[0017] Figure 2 This is a schematic diagram showing the connection between the packaging film body and the aluminized film proposed in this utility model;
[0018] Figure 3 This is a schematic diagram of the tapered pawl connection structure proposed in this utility model;
[0019] Figure 4 This is a schematic diagram of the installation structure of the sunshade film proposed in this utility model.
[0020] In the diagram: 1 Packaging film body, 2 Aluminized film, 21 Tear line one, 22 Adhesive layer, 23 Adhesive bumps, 3 Conical paddle, 31 Film body, 32 Spring wire, 4 Tear line two, 5 Sunshade film, 6 Striped indentation. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figure 1-4 A light-resistant packaging film includes a packaging film body 1, and an aluminum-plated film 2 is connected to the outer surface of the packaging film body 1 by a plurality of adhesive protrusions 23. The aluminum-plated film 2 is covered on the packaging film body 1 to achieve the outermost light-resistant effect.
[0023] Multiple strip-shaped indentations 6 are arranged at equal intervals on the aluminum-coated film 2. The strip-shaped indentations 6 form a recessed structure on the aluminum-coated film 2, causing strong scattering of incident light to reduce the intensity and directionality of directly transmitted light.
[0024] Multiple conical paddles 3 are symmetrically arranged in the middle of the aluminum-coated film 2. After being removed, the conical paddles 3 are used to hold the sunshade film 5.
[0025] Those skilled in the art can add several shading films 5 to improve the anti-sunlight performance according to actual usage needs, i.e., anti-sunlight requirements.
[0026] The sunshade film 5 is an existing product that can be directly purchased and used on the market; its specific structure and principle will not be explained further.
[0027] The conical paddle 3 includes a membrane 31 and a spring wire 32. The membrane 31 is conical and has a spring wire 32 embedded inside. The wide side of the membrane 31 is connected to the aluminum-plated membrane 2, and the side of the membrane 31 adjacent to the wide side is connected to the aluminum-plated membrane 2 through a tear line 4.
[0028] It is easy to understand that the wide side of the membrane 31 is a fixed side, that is, it is always connected to the aluminum-coated membrane 2; the side edges of the remaining membranes 31 adjacent to the wide side form tearable edges (separable edges) through tear lines 4.
[0029] A certain gap is left between the aluminized film 2 and the packaging film body 1, and the height of the gap is the thickness of the bonding protrusion 23.
[0030] Tear lines 21 are provided at 1m intervals in the middle of the aluminized film 2.
[0031] The bottom surface of the adhesive protrusion 23 is provided with an adhesive layer 22, which is connected to the packaging film body 1. The adhesive layer 22 is bonded using a peelable adhesive.
[0032] One end of the spring wire 32 is connected to the aluminum-plated film 2, and the other end is inserted into the interior of the film body 31.
[0033] In its natural state, the side of the spring wire 32 has an upwardly concave arched structure.
[0034] In this embodiment, an aluminum-plated film 2 is provided on the outer side of the packaging film body 1 to ensure its anti-light performance. In actual application, after the transportation and use of the packaging film body 1 are completed, the two adjacent films can still be torn apart along the tear line 21 provided on the aluminum-plated film 2, and the aluminum-plated film 2 can be directly torn off the packaging film body 1, that is, the separation of the sunshade layer.
[0035] The adhesive layer 22 ensures a firm connection between the packaging film body 1 and the aluminized film 2.
[0036] In addition, the outer edge of the conical lever 3 is provided with a tear line 4 for separation. The conical lever 3 can still be separated from the aluminized film 2 by pressing or other means, leaving only one edge connected to the aluminized film 2. At this time, under the action of the internal spring wire 32, the upward concave arch structure of the conical lever 3 gives it a certain elasticity. Therefore, the sunshade film 5 can be inserted through the two symmetrically arranged conical levers 3 and initially pressed and limited by the conical levers 3, so that the sunshade film 5 is temporarily installed on the outermost layer of the packaging film body 1, which further enhances the anti-sunlight effect.
Claims
1. A light-resistant packaging film, comprising a packaging film body (1), characterized in that, The outer surface of the packaging film body (1) is connected to an aluminum-plated film (2) by multiple adhesive protrusions (23). The aluminum-plated film (2) covers the packaging film body (1), and multiple strip-shaped indentations (6) are arranged at equal intervals on the aluminum-plated film (2). The aluminum-coated film (2) has multiple conical paddles (3) symmetrically arranged in the middle. After being removed, the conical paddles (3) are used to hold the sunshade film (5). The conical paddle (3) includes a membrane (31) and a spring wire (32). The membrane (31) is conical and has a spring wire (32) embedded inside. The wide side of the membrane (31) is connected to the aluminum-plated membrane (2), and the side of the membrane (31) adjacent to the wide side is connected to the aluminum-plated membrane (2) through tear line 2 (4).
2. The light-resistant packaging film according to claim 1, characterized in that, There is a certain gap between the aluminized film (2) and the packaging film body (1), and the height of the gap is the thickness of the bonding protrusion (23).
3. The light-resistant packaging film according to claim 1, characterized in that, The aluminum-coated film (2) has a tear line (21) every 1m in the middle.
4. The light-resistant packaging film according to claim 1, characterized in that, The bottom surface of the adhesive protrusion (23) is provided with an adhesive layer (22), which is connected to the packaging film body (1).
5. The light-resistant packaging film according to claim 1, characterized in that, One end of the spring wire (32) is connected to the aluminum-plated film (2), and the other end is inserted into the interior of the film body (31).
6. The light-resistant packaging film according to claim 5, characterized in that, In its natural state, the side of the spring wire (32) has an upwardly concave arched structure.