Environment-friendly multi-layer composite film of PU laser transfer film

Abstract

The utility model relates to the technical field of multi-layer composite films, in particular to an environment-friendly multi-layer composite film of a PU (polyurethane) laser transfer film, which comprises a first protective film, a film body is arranged on the inner side of the first protective film, a fixing belt is arranged on one side of the film body, and a second protective film is connected to one side of the fixing belt. One end of the second protective film is connected with a sliding block, a pull belt is arranged at the lower end of the second protective film, and a reinforcing layer is arranged on the periphery of the film body. The film body is wound around an object needing to be wound, and after winding is finished, the film body is fixed to the periphery of the object through the multiple sets of fixing belts and the film body; according to the environment-friendly multi-layer composite film for the PU laser transfer film, the film body without self-adhesion is fixed and reinforced, the situation that adhesion is reduced due to the fact that dust is attached to the outer side of the film body, and the film body is scattered due to external vibration factors in the transportation process is avoided, and the environment-friendly multi-layer composite film for the PU laser transfer film is achieved.

Description

Technical Field

[0001] This utility model relates to the field of multilayer composite film technology, specifically to an environmentally friendly multilayer composite film of PU laser transfer film. Background Technology

[0002] In a highly competitive consumer market, brands need to stand out through packaging. Laser film, with its unique optical effects, can produce rainbow-like colors and a shimmering luster, significantly enhancing product recognition and appeal. From cosmetics to high-end gifts, from electronic products to food packaging, laser film is increasingly widely used in various fields.

[0003] When packaging products with traditional laser film, if the film is not self-adhesive, workers need to apply it manually, which greatly increases packaging time and reduces work efficiency. At the same time, self-adhesive laser film may be subject to dust adhering to the outer wall due to environmental factors, which will affect the adhesion and thus affect the firmness of subsequent use.

[0004] In view of this, we have studied and improved upon the existing problems to provide an environmentally friendly multilayer composite film of PU laser transfer film. The film has a reasonable structural design, high stability, and can be used in various applications. The aim of this technology is to solve the problems and improve the practical value. Utility Model Content

[0005] This invention involves wrapping the membrane with the object to be wrapped. After wrapping, multiple sets of fixing straps are used to connect the membrane to the object, thereby fixing the membrane to the outside of the object. This fixes and reinforces non-self-adhesive membranes, preventing dust from adhering to the outside of the membrane and reducing its adhesiveness. This also prevents the membrane from falling apart due to external vibrations during transportation, thus realizing an environmentally friendly multilayer composite PU laser transfer film.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an environmentally friendly multilayer composite film of PU laser transfer film, comprising a first protective film, a film body disposed on the inner side of the first protective film, a fixing strap disposed on one side of the film body, a second protective film connected to one side of the fixing strap, a slider connected to one end of the second protective film, a pull strap disposed at the lower end of the second protective film, and a reinforcing layer disposed around the film body.

[0007] Preferably, the first protective film is pasted on the outside of the membrane body, and the first protective film covers the entire membrane body.

[0008] Preferably, the fixing straps are fixedly connected to multiple sets on the outside of the membrane, and the adhesive surfaces of the multiple sets of fixing straps are all connected to a second protective film.

[0009] Preferably, one end of the second protective film is fixedly connected to a slider, and the other end of the slider is fixedly connected to a pull strap, which extends through the first protective film to the outside.

[0010] Preferably, the reinforcing layer is fixedly connected to the outside of the membrane body, and the reinforcing layer covers the entire membrane body.

[0011] Preferably, the membrane body has a base layer inside, a laser layer is provided at the lower end of the base layer, an adhesive layer is connected between the base layer and the laser layer, and the base layer and the laser layer are bonded together by the adhesive layer.

[0012] Preferably, a polyurethane layer is provided at the lower end of the laser layer, and the laser layer is connected to the polyurethane layer through an adhesive layer.

[0013] This invention has the following advantages: In its initial state, the fixing strap is protected inside the first protective film, thus preventing excessive dust contact with the fixing strap during transportation or storage, which could reduce its adhesiveness. It also prevents accidental contact by workers that could cause the second protective film to fall off, thus preventing the fixing strap from losing its adhesiveness. As the slider moves to contact the first protective film, because the slider is larger than the strap, it cannot pass through the first protective film. With continuous pulling of the strap, the first protective film is simultaneously peeled off by the slider, allowing the film to be wrapped around the object. After wrapping, multiple sets of fixing straps are connected to the film, thus fixing the film to the outside of the object. The system surrounds and secures non-self-adhesive membranes, reducing the difficulty of application for workers and improving production efficiency. For self-adhesive membranes, it reinforces the outer surface to prevent dust from adhering and reducing adhesion, thus preventing the membrane from separating during transport due to external vibrations. The polyurethane layer is made of PU material, which has excellent flexibility, abrasion resistance, and chemical resistance. It improves the feel of the composite membrane, making the surface softer, while enhancing its waterproof and moisture-proof properties, protecting the laser layer and base layer from external environmental influences. Furthermore, some PU materials can be decomposed by microorganisms under certain environmental conditions, reducing long-term environmental pollution. Attached Figure Description

[0014] Figure 1 This is an overall structural diagram of an environmentally friendly multilayer composite film for PU laser transfer film proposed in this utility model;

[0015] Figure 2 This is an internal view of the first protective film of an environmentally friendly multilayer composite film of PU laser transfer film proposed in this utility model.

[0016] Figure 3 This is a partial structural cross-sectional view of an environmentally friendly multilayer composite film for PU laser transfer film proposed in this utility model.

[0017] Figure 4This is a partial structural diagram of an environmentally friendly multilayer composite film for PU laser transfer film proposed in this utility model.

[0018] Legend:

[0019] 1. First protective film; 2. Film body; 3. Fixing strap; 4. Second protective film; 5. Slider; 6. Pull strap; 7. Reinforcing layer; 8. Base layer; 9. Laser layer; 10. Adhesive layer; 11. Polyurethane layer. Detailed Implementation

[0020] 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.

[0021] Reference Figure 1-4 An embodiment of this utility model is provided: an environmentally friendly multilayer composite film of PU laser transfer film, including a first protective film 1, a film body 2 is provided on the inner side of the first protective film 1, a fixing strap 3 is provided on one side of the film body 2, a second protective film 4 is connected to one side of the fixing strap 3, a slider 5 is connected to one end of the second protective film 4, a pull strap 6 is provided at the lower end of the second protective film 4, and a reinforcing layer 7 is provided around the film body 2.

[0022] In an optional embodiment: the first protective film 1 is pasted on the outside of the film body 2, and the first protective film 1 covers the entire film body 2. The first protective film 1 protects the film body 2, so that the protective film can prevent external objects from scratching, wearing or contaminating the laser pattern during transportation, storage and processing, ensuring the integrity and clarity of the laser pattern, thereby ensuring that its decorative and anti-counterfeiting functions are not affected.

[0023] In an optional embodiment: multiple sets of fixing straps 3 are fixedly connected to the outside of the membrane body 2. The adhesive surfaces of the multiple sets of fixing straps 3 are all connected to the second protective film 4, which seals the membrane body 2. The fixing straps 3 are self-adhesive and initially protect the fixing straps 3 inside the first protective film 1, thereby preventing dust from contacting the fixing straps 3 during transportation or storage, or causing a decrease in adhesiveness. It also prevents workers from accidentally touching the second protective film 4 and causing it to fall off, thus causing the fixing straps 3 to lose its adhesiveness.

[0024] In an optional embodiment: one end of the second protective film 4 is fixedly connected to the slider 5, and the other end of the slider 5 is fixedly connected to the pull strap 6. The pull strap 6 extends through the first protective film 1 to the outside. In use, when the operator pulls the pull strap 6, the slider 5 will gradually move outward as the pull strap 6 is pulled out. As the slider 5 gradually moves outward, it will simultaneously pull the second protective film 4 to disengage from the fixing strap 3. When the slider 5 moves to contact the first protective film 1, because the size of the slider 5 is larger than the pull strap 6, the slider 5 cannot pass through the first protective film 1. As the pull strap 6 is continuously pulled, the first protective film 1 will be simultaneously peeled off by the slider 5, so that the film 2 can be wrapped around the object to be wrapped. After the wrapping is completed, multiple sets of fixing straps 3 are connected to the film 2, thereby fixing the film 2 to the outside of the object. This fixes the non-self-adhesive film, thereby reducing the difficulty of pasting for workers and improving production efficiency. It also reinforces the self-adhesive film 2, preventing dust from adhering to the outside of the film 2 and causing the adhesiveness to decrease, so that the film 2 will not fall apart due to external vibration factors during transportation.

[0025] In an optional embodiment: the reinforcing layer 7 is fixedly connected to the outside of the membrane 2, and the reinforcing layer 7 covers the entire membrane 2. The reinforcing layer 7 can enhance the overall hardness and toughness of the laser transfer membrane, making it more able to withstand mechanical forces such as tension, bending, and friction, and prevent the membrane from breaking due to external forces during production, transportation and use.

[0026] In an optional embodiment: a base layer 8 is provided inside the membrane body 2, a laser layer 9 is provided at the lower end of the base layer 8, and an adhesive layer 10 is connected between the base layer 8 and the laser layer 9. The base layer 8 and the laser layer 9 are bonded together by the adhesive layer 10. The base layer 8 is made of materials such as polyester PET, which has good mechanical properties, dimensional stability and transparency, and provides basic support and strength for the entire composite membrane.

[0027] In an optional embodiment: a polyurethane layer 11 is provided at the lower end of the laser layer 9. The laser layer 9 is connected to the polyurethane layer 11 through an adhesive layer 10. The polyurethane layer 11 is made of PU material. PU has good flexibility, wear resistance and chemical resistance. It can improve the feel of the composite film, make the film surface softer, and enhance the waterproof and moisture-proof performance of the film. It protects the laser layer and the base layer from the influence of the external environment. In addition, some PU materials can be decomposed by microorganisms under certain environmental conditions, reducing long-term pollution to the environment.

[0028] Working principle and process: When in use, the operator pulls the pull strap 6. As the pull strap 6 is pulled, the slider 5 gradually moves outward. As the slider 5 moves outward, it simultaneously pulls the second protective film 4 away from the fixing strap 3. When the slider 5 moves to contact the first protective film 1, because the slider 5 is larger than the pull strap 6, the slider 5 cannot pass through the first protective film 1. As the pull strap 6 is continuously pulled, the first protective film 1 will be simultaneously peeled off by the slider 5, so that the film body 2 can be wrapped with the object to be wrapped. After the wrapping is completed, it is connected to the film body 2 by multiple sets of fixing straps 3.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An environmentally friendly multi-layer composite film of PU laser transfer film, comprising a first protective film (1), characterized in that: The first protective film (1) is provided with a film body (2) on the inner side, one side of the film body (2) is provided with a fixing belt (3), one side of the fixing belt (3) is connected with a second protective film (4), one end of the second protective film (4) is connected with a sliding block (5), the lower end of the second protective film (4) is provided with a pull belt (6), and a reinforcing layer (7) is arranged around the film body (2).

2. The environmentally friendly multi-layer composite film of claim 1, wherein: The first protective film (1) is pasted on the outer side of the film body (2), and the first protective film (1) covers the whole film body (2).

3. The environmentally friendly multi-layer composite film of claim 1, wherein the PU laser transfer film is characterized by: The fixing belt (3) is fixedly connected with a plurality of groups on the outer side of the film body (2), and the fixing belt (3) is pasted on the outer side of the film body (2).

4. The environmentally friendly multi-layer composite film of claim 1, wherein: The second protective film (4) is fixedly connected with a sliding block (5) at one end, the other end of the sliding block (5) is fixedly connected with a pull belt (6), and the pull belt (6) extends through the first protective film (1) to the outer side.

5. The environmentally friendly multi-layer composite film of claim 1, wherein: The reinforcing layer (7) is fixedly connected on the outer side of the film body (2), and the reinforcing layer (7) wraps the whole film body (2).

6. The environmentally friendly multi-layer composite film of claim 1, wherein: The film body (2) is provided with a base layer (8) inside, a laser layer (9) is arranged at the lower end of the base layer (8), a sticking layer (10) is connected between the base layer (8) and the laser layer (9), and the base layer (8) and the laser layer (9) are attached through the sticking layer (10).

7. The environmentally friendly multi-layer composite film of claim 6, wherein: The laser layer (9) is provided with a polyurethane layer (11) at the lower end, and the laser layer (9) is connected with the polyurethane layer (11) through the sticking layer (10).

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