Antistatic PE (polyethylene) film with barrier function
By setting a tear groove and a toning coating on the PE coating, and setting a cavity and an adhesive layer between the inner and outer layers, the problem of low peeling efficiency of the existing PE coating is solved, efficient peeling and good barrier functions are achieved, and the practicality of the product and the ability to prevent food deterioration are improved.
Patent Information
- Application Number
- CN202420786810.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-04-16
AI Technical Summary
The existing PE coatings are thinner in thickness and prone to sticking at the cutouts, resulting in low peeling efficiency and low practicality.
An antistatic PE coating with barrier function is designed, and peeling efficiency is improved by providing tear grooves and color-tool coatings on the outer layer and the inner layer surface, and a cavity and bonding layer are provided between the inner layer and the outer layer.
By setting the first tearing groove, the second tearing groove and the cavity, it is convenient for the staff to effectively tear the PE coating, and the exposure of the color-to-tuning coating is easy to find the cutout, improving the peeling efficiency and practicality, and at the same time it has a good barrier function to prevent food from deteriorating.
Smart Images
Figure CN222959387U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PE film covering, in particular to an antistatic PE film covering with a barrier function. Background Technique
[0002] PE film covering, namely PE protective film, is the simplest macromolecular organic compound and the most widely used macromolecular material in the world today. The PE protective film is based on a special polyethylene (PE) plastic film and is divided into high-density polyethylene protective film, medium-density polyethylene and low-density polyethylene according to different densities.
[0003] Some existing PE film coverings are relatively thin in thickness. Although some PE film coverings will design the cut to be serrated so that it is convenient for users to tear off the film, during actual use, the cut will adhere to the rest of the film. When using it next time, usually the user needs to first find the cut and then peel off the film. Since the film is relatively thin and is a transparent material, it is not convenient for the user to find the cut, the peeling efficiency is low, and the practicability is low. In view of this, we propose an antistatic PE film covering with a barrier function to solve the above problems. Content of the Utility Model
[0004] (I) Technical Problems to be Solved
[0005] Aiming at the deficiencies of the prior art, the utility model provides an antistatic PE film covering with a barrier function, which solves the problem that some existing PE film coverings are not easy to peel off.
[0006] (II) Technical Solutions
[0007] To achieve the above object, the utility model provides the following technical solution: An antistatic PE film covering with a barrier function, wound around a reel. The antistatic PE film covering includes a PE film covering body, and the PE film covering body includes an inner layer and an outer layer. A first peeling groove is arranged on the surface of the outer layer, a second peeling groove is arranged on the surface of the inner layer, and the second peeling groove extends out of the inner layer. A cavity is arranged between the inner layer and the outer layer, and a color coating is coated on the surface of the inner layer, and the color coating is located inside the cavity.
[0008] Preferably, the outer layer is arranged outside the inner layer, and the outer layer includes a wear-resistant layer and a barrier layer.
[0009] Preferably, the wear-resistant layer is coated on the outside of the barrier layer.
[0010] Preferably, the barrier layer is located outside the inner layer.
[0011] Preferably, the inner layer includes a conductive layer and an antistatic layer, and a bonding layer is arranged between the inner layer and the outer layer.
[0012] Preferably, the conductive layer is fixedly connected via an adhesive layer and a barrier layer.
[0013] Preferably, the conductive layer is located inside the barrier layer.
[0014] Preferably, the antistatic layer is located on the inner side of the conductive layer.
[0015] (III) Beneficial effects
[0016] Compared with the prior art, the utility model provides an antistatic PE coating with barrier function, which has the following beneficial effects:
[0017] 1. The antistatic PE film with a barrier function, when the staff needs to tear off the PE film body, the first tearing groove, the second tearing groove and the cavity are set to facilitate the staff to tear off the PE film body. When the PE film body is subsequently torn off, the color-adjusting coating will be exposed, which makes it convenient for the staff to find the incision, thereby improving the efficiency of subsequent staff to tear off the PE film body, and the practicality is high. At the same time, by setting the color-adjusting coating to a bright color, it can further facilitate the staff to find the incision, and the operation is simple.
[0018] 2. The antistatic PE film with barrier function can effectively prevent the product from losing water and drying out, and the deterioration of taste by setting the wear-resistant layer and the barrier layer, and can prevent the loss of fragrance, and does not absorb residual odor and abnormal taste, ensuring the integrity of the odor. Even if it is exposed to the outdoors for a long time and directly exposed to sunlight, the packaging will not fade or age. This solves the problem that some existing PE films do not have good barrier function, which makes it difficult to block oxygen, water vapor and odor when packaging food, which easily causes food to deteriorate.
[0019] 3. The antistatic PE film with barrier function further ensures the stability and firmness of the connection between the inner layer and the outer layer through the setting of the adhesive layer, thereby ensuring the normal use of the PE film body.
[0020] 4. The antistatic PE film with barrier function, through the setting of the conductive layer and the antistatic layer, avoids the problem of static electricity generated by some existing PE films as much as possible, which is difficult to eliminate, and also avoids the problem of easily absorbing dust particles in the air or causing damage to the packaged products themselves. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the structure of an antistatic PE coating with barrier function of the utility model;
[0022] Figure 2This is a schematic structural view of the PE film body of the present utility model;
[0023] Figure 3 This is a schematic cross-sectional view of the PE film body of the present utility model;
[0024] Figure 4 This is a schematic plan view of the outer layer of the present utility model;
[0025] Figure 5 This is a schematic plan view of the inner layer of the present utility model.
[0026] In the figure: 1, reel; 2, PE film body; 3, inner layer; 4, outer layer; 5, first tearing groove; 6, second tearing groove; 7, cavity; 8, color-adjusting coating; 9, wear-resistant layer; 10, barrier layer; 11, bonding layer; 12, conductive layer; 13, antistatic layer. Specific embodiments
[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0028] Please refer to Figures 1 - 5 , the present utility model provides a technical solution: an antistatic PE film with a barrier function, wound around a reel 1. The antistatic PE film includes a PE film body 2. The PE film body 2 includes an inner layer 3 and an outer layer 4. A first tearing groove 5 is provided on the surface of the outer layer 4, and a second tearing groove 6 is provided on the surface of the inner layer 3. The second tearing groove 6 extends out of the inner layer 3. A cavity 7 is provided between the inner layer 3 and the outer layer 4. A color-adjusting coating 8 is coated on the surface of the inner layer 3, and the color-adjusting coating 8 is located inside the cavity 7. When the staff needs to tear the PE film body 2, the setting of the first tearing groove 5, the second tearing groove 6 and the cavity 7 facilitates the staff to tear between the PE film bodies 2. Subsequently, when the PE film body 2 is torn, at this time, the color-adjusting coating 8 will be exposed, which further facilitates the staff to find the cut, thereby improving the efficiency of the subsequent tearing of the PE film body 2 by the staff, and has high practicability. At the same time, by setting the color-adjusting coating 8 to a bright color, it can further facilitate the staff to find the cut, and the operation is simple.
[0029] Furthermore, the outer layer 4 is arranged outside the inner layer 3, and the outer layer 4 includes a wear-resistant layer 9 and a barrier layer 10.
[0030] Furthermore, the wear-resistant layer 9 is coated on the outside of the barrier layer 10 . The wear-resistant layer 9 is an oily polyester resin, which can effectively resist the erosion of various chemical substances such as water, oxidants, oxygen, and carbon dioxide in the atmosphere, thereby effectively improving the service life of the PE film body 2 .
[0031] Furthermore, the barrier layer 10 is located on the outside of the inner layer 3. The barrier layer 10 is a polyvinylidene chloride layer. Relying on its strong intermolecular cohesion and high crystallinity, the chlorine atoms in the polyvinylidene chloride molecules are hydrophobic and will not form hydrogen bonds. It is difficult for oxygen molecules and water molecules to move in the polyvinylidene chloride molecules, so that it has excellent oxygen barrier and moisture barrier properties. Its oxygen barrier property is not affected by the humidity of the surrounding environment, and it has excellent ability to block water vapor, oxygen, odor and fragrance under any temperature or humidity conditions. Polyvinylidene chloride can be made into sheets, pipes, molded parts, films and fibers, and vinylidene chloride copolymers are also used as coatings, adhesives, etc.
[0032] The provision of the wear-resistant layer 9 and the barrier layer 10 can effectively prevent the product from losing water and drying out, and the deterioration of the taste, and can prevent the loss of fragrance. Moreover, it does not absorb residual odors and abnormal tastes, and ensures the integrity of the odor. Even if it is exposed to the outdoors for a long time and directly exposed to sunlight, the packaging will not fade or age. This solves the problem that some existing PE films do not have good barrier functions, which makes it difficult to block oxygen, water vapor and odors when packaging food, which easily causes food to spoil.
[0033] Furthermore, the inner layer 3 includes a conductive layer 12 and an antistatic layer 13, and an adhesive layer 11 is arranged between the inner layer 3 and the outer layer 4. The conductive layer 12 is fixedly connected to the barrier layer 10 through the adhesive layer 11. The adhesive layer 11 is arranged to further ensure the stability and firmness of the connection between the inner layer 3 and the outer layer 4, thereby ensuring the normal use of the PE film body 2.
[0034] Furthermore, the conductive layer 12 is located on the inner side of the barrier layer 10. The conductive layer 12 is a metal conductive layer, which is a film layer composed of one of silver, copper and gold. Moreover, the conductive film is made of any one of silver, copper and gold, which can obtain a conductive film with good conductive properties and good anti-oxidation properties.
[0035] Furthermore, the antistatic layer 13 is located inside the conductive layer 12 , and the antistatic layer is formed by coating with an antistatic coating, and the base resin of the antistatic coating is PU, EP or acrylate.
[0036] By providing the conductive layer 12 and the antistatic layer 13, the problem that some existing PE films generate static electricity and are difficult to eliminate is avoided as much as possible, and the problem that dust particles in the air are easily adsorbed or the packaged products themselves are damaged is also avoided.
[0037] Working principle:
[0038] When the anti-static PE film with a barrier function is in use, the first tearing groove 5, the second tearing groove 6 and the cavity 7 are provided to facilitate the staff to tear between the PE film bodies 2. Subsequently, when the PE film body 2 is torn off, the color adjustment coating 8 will be exposed at this time, which is convenient for the staff to find the cut, thereby improving the efficiency of the subsequent tearing of the PE film body 2 by the staff.
[0039] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An antistatic PE film with barrier function, wound on a reel (1), characterized in that: The antistatic PE coating comprises a PE coating body (2), the PE coating body (2) comprises an inner layer (3) and an outer layer (4), the surface of the outer layer (4) is provided with a first tearing groove (5), the surface of the inner layer (3) is provided with a second tearing groove (6), the second tearing groove (6) extends out of the inner layer (3), a cavity (7) is provided between the inner layer (3) and the outer layer (4), the surface of the inner layer (3) is coated with a color-adjusting coating (8), and the color-adjusting coating (8) is located inside the cavity (7).
2. The antistatic PE film with barrier function according to claim 1, characterized in that: The outer layer (4) is arranged on the outside of the inner layer (3), and the outer layer (4) comprises a wear-resistant layer (9) and a barrier layer (10).
3. The antistatic PE film with barrier function according to claim 2, characterized in that: The wear-resistant layer (9) is coated on the outer side of the barrier layer (10).
4. The antistatic PE film with barrier function according to claim 3, characterized in that: The barrier layer (10) is located on the outside of the inner layer (3).
5. The antistatic PE film with barrier function according to claim 4, characterized in that: The inner layer (3) comprises a conductive layer (12) and an antistatic layer (13), and an adhesive layer (11) is provided between the inner layer (3) and the outer layer (4).
6. The antistatic PE film with barrier function according to claim 5, characterized in that: The conductive layer (12) is fixedly connected via the adhesive layer (11) and the barrier layer (10).
7. The antistatic PE film with barrier function according to claim 6, characterized in that: The conductive layer (12) is located on the inner side of the barrier layer (10).
8. The antistatic PE film with barrier function according to claim 7, characterized in that: The antistatic layer (13) is located on the inner side of the conductive layer (12).