A plastic packaging film

Abstract

The utility model discloses a kind of plastic packaging films, it includes substrate, substrate side wall is equipped with reinforcing assembly, substrate side wall is equipped with positioning assembly, this kind of plastic packaging film, to be placed in plastic packaging film side wall by plastic packaging paper, another plastic packaging film is attached and heated plastic packaging, wear layer is improved the wear resistance of plastic packaging film, by repair coating, it is convenient to use hot air to repair and prevent scratch, by reinforcing net, improve the tensile resistance of plastic packaging film, by hot melt adhesive strip, melt quickly and stick, by hot melt adhesive layer, melt at higher temperature and enhance durability, avoid plastic packaging film to open glue, by reinforcing rib, prevent plastic packaging film edge cracking, secondly, by positioning assembly, it is convenient to mark positioning, it is convenient to need plastic packaging paper to align plastic packaging position, improve the neatness of need plastic packaging paper, by heating to plastic packaging film, paraffin shell melts, color developing agent flows out, by color developing agent and heat-sensitive coating react at high temperature, first discoloration, then fade, avoid plastic packaging film plastic packaging after heat-sensitive coating leave mark.

Description

Technical Field

[0001] This utility model relates to the field of plastic sealing film technology, specifically to a plastic sealing film. Background Technology

[0002] Laminating film, also known as heat laminating film, card protector, shell protector, or coating film, is a helpful tool for laminating photos and documents in daily life. It requires a laminating machine for heating; different thicknesses necessitate different laminating temperatures, which are related to the laminating machine's pressure and speed, as well as the film's thickness. The advantages of laminating film include: moisture-proof, dust-proof, and fade-proof, protecting documents and photos for long-term use.

[0003] The prior art patent document with publication number CN222933601U provides a molding film, including a substrate for adhering to the surface of an object to be molded. The substrate has a first end and a second end distributed along its length. At least one of the first end and the second end is provided with a venting portion, which is located between the surface of the substrate and the surface of the object to be molded to discharge gas between the surface of the substrate and the surface of the object to be molded. By adding a venting portion to the substrate to discharge gas between the surface of the substrate and the surface of the object to be molded, the molding film prevents air bubbles from forming between the molding film and the surface of the object to be molded, thereby improving the molding efficiency.

[0004] Although the device has many beneficial effects, the following problems still exist: During the use of the device, the strength of the laminating film itself is insufficient, and it is easy to tear or peel off, affecting its durability; secondly, the device is not convenient for marking and positioning during use, which affects the neatness of the paper to be laminated. Therefore, we propose a laminating film. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] 1. Technical problems to be solved:

[0007] To address the issues of insufficient strength of the laminating film, easy tearing or delamination affecting durability, and difficulty in marking and positioning, which affects the neatness of the paper to be laminated, this utility model is proposed.

[0008] Therefore, the purpose of this utility model is to provide a laminating film that can improve the strength of the laminating film body, avoid tearing or delamination, effectively improve durability, facilitate marking and positioning, and improve the neatness of the paper to be laminated.

[0009] 2. Technical Solution:

[0010] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0011] A plastic sealant film includes a substrate, a reinforcing component on one sidewall of the substrate, the reinforcing component including a wear-resistant layer, a repair coating on the sidewall of the wear-resistant layer, a reinforcing mesh inside the substrate, a hot melt adhesive layer on another sidewall of the substrate, multiple mounting grooves on the other sidewall of the hot melt adhesive layer, hot melt adhesive strips on the sidewalls of each mounting groove, and reinforcing ribs on all four sides of the substrate. The inner walls of the reinforcing ribs are fixedly connected to the sidewalls of the wear-resistant layer and the hot melt adhesive layer. A positioning component is provided on the sidewall of the substrate. The fixed connection between the reinforcing ribs and the sidewalls of the wear-resistant layer, the substrate, and the hot melt adhesive layer prevents the multi-layered plastic sealant film from cracking and separating.

[0012] In a preferred embodiment of the laminating film of this utility model, the positioning component includes a heat-sensitive coating, a paraffin shell embedded in the sidewall of the heat-sensitive coating, a curing resin disposed in the sidewall of the heat-sensitive coating, a color developer disposed in the inner circumference of the paraffin shell, and the top of the paraffin shell embedded inside the curing resin. The paraffin shell has a low melting point, making it convenient to use and preventing damage to the paper to be laminated due to excessive heating temperature.

[0013] In a preferred embodiment of the sealing film of this utility model, the wear-resistant layer is made of transparent PET, and the repair coating is made of microencapsulated polyurethane self-healing material.

[0014] In a preferred embodiment of the plastic sealing film of this utility model, the reinforcing mesh is made of aramid fiber, and the hot melt adhesive layer is made of activated EVA adhesive.

[0015] In a preferred embodiment of the plastic sealing film of this utility model, the melting point of the hot melt adhesive layer is higher than that of the hot melt adhesive strip, and the size of the mounting groove matches the size of the hot melt adhesive strip.

[0016] In a preferred embodiment of the plastic sealing film of this utility model, the heat-sensitive coating has a mesh structure, and the size and position of the cured resin match the size and position of the heat-sensitive coating.

[0017] In a preferred embodiment of the sealing film of this utility model, the heat-sensitive coating is made of anthocyanins, and the color developer is made of citric acid. Anthocyanins and citric acid are more environmentally friendly, avoiding pollution.

[0018] 3. Beneficial effects:

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This type of laminating film involves placing the paper to be laminating on the side wall of the laminating film, then applying another laminating film and heating it for lamination. The wear-resistant layer enhances the wear resistance of the laminating film, the repair coating facilitates hot air repair to prevent scratches, the reinforcing mesh improves the tensile strength of the laminating film, the hot melt adhesive strip melts first for rapid bonding, the hot melt adhesive layer melts at a higher temperature to enhance durability and prevent the laminating film from peeling off, and the reinforcing ribs prevent the laminating film from curling and cracking at the edges.

[0021] This type of laminating film, by coating the sidewalls with a heat-sensitive coating, facilitates marking and positioning, makes it easier to align the paper to be laminated, and improves the neatness of the paper to be laminated. By heating the laminating film, the paraffin shell melts, and the color developer flows out. The color developer reacts with the heat-sensitive coating at high temperature, changing the color first and then fading it, avoiding leaving marks on the heat-sensitive coating after lamination. UV treatment with a curing resin further prevents the heat-sensitive coating from flowing. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0023] Figure 1 This is a schematic diagram of the overall structure of a plastic sealing film according to the present invention;

[0024] Figure 2 This is a schematic diagram showing the disassembled structure of a reinforcing component of a plastic sealing film according to the present invention;

[0025] Figure 3 This is a schematic diagram showing the disassembled structure of the hot melt adhesive layer of a plastic sealing film according to this utility model;

[0026] Figure 4 This is a schematic diagram of the wear-resistant layer structure of a plastic sealing film according to the present invention;

[0027] Figure 5 This is a structural disassembly diagram of a positioning component for a plastic sealing film according to the present invention.

[0028] Explanation of the numbers in the diagram: 1. Substrate; 2. Reinforcing component; 3. Positioning component; 201. Wear-resistant layer; 202. Repair coating; 203. Reinforcing mesh; 204. Hot melt adhesive layer; 205. Mounting groove; 206. Hot melt adhesive strip; 207. Reinforcing rib; 301. Thermosensitive coating; 302. Paraffin shell; 303. Curing resin; 304. Color developer. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0031] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0032] The term "connection method" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0034] This utility model provides an overall structural diagram of an embodiment of a plastic sealing film, including:

[0035] Please see Figures 1-5This embodiment of a molding compound includes a substrate 1, a reinforcing component 2 fixedly provided on the side wall of the substrate 1, the reinforcing component 2 including a wear-resistant layer 201, a repair coating 202 coated on the side wall of the wear-resistant layer 201, a reinforcing mesh 203 fixedly provided inside the substrate 1, a hot melt adhesive layer 204 bonded to the other side wall of the substrate 1, a plurality of mounting grooves 205 formed on the other side wall of the hot melt adhesive layer 204, hot melt adhesive strips 206 bonded to the side walls of the plurality of mounting grooves 205, and reinforcing ribs 207 fixedly provided on the four sides of the plurality of substrate 1, the inner walls of the reinforcing ribs 207 being bonded to the wear-resistant layer 201 and the hot melt adhesive layer 206. The adhesive layer 204 is fixedly connected to the four sides. The sidewall of the substrate 1 is coated with positioning components 3. The paper to be laminated is placed on the sidewall of the laminating film, and another laminating film is applied and heated for lamination. The wear-resistant layer 201 improves the wear resistance of the laminating film. The repair coating 202 facilitates repair with hot air to prevent scratches. The reinforcing mesh 203 improves the tensile strength of the laminating film. The hot melt adhesive strip 206 melts first and then quickly bonds. The hot melt adhesive layer 204 melts at a higher temperature to enhance durability and prevent the laminating film from peeling off. The reinforcing rib 207 prevents the laminating film from curling and cracking.

[0036] It is worth noting that, in order to improve the neatness of the paper to be laminated, the positioning component 3 specifically includes a thermal coating 301, a paraffin shell 302 embedded in the side wall of the thermal coating 301, a curing resin 303 coated on the side wall of the thermal coating 301, a color developer 304 filled in the inner circumference of the paraffin shell 302, and the top of the paraffin shell 302 embedded in the curing resin 303. By coating the side wall of the laminating film with the thermal coating 301, it is easy to mark and position, and it is convenient to align the paper to be laminated with the laminating position, thus improving the neatness of the paper to be laminated. By heating the laminating film, the paraffin shell 302 is melted, and the color developer 304 flows out. The color developer 304 reacts with the thermal coating 301 at high temperature, changing color first and then fading, thus avoiding leaving a mark on the thermal coating 301 after laminating the film. The curing resin 303 is used for UV treatment to prevent the thermal coating 301 from flowing.

[0037] Next, to facilitate the repair of the wear-resistant layer 201, specifically, the wear-resistant layer 201 is made of transparent PET, and the repair coating 202 is made of microencapsulated polyurethane self-healing material. The wear-resistant layer 201 made of transparent PET material is easy to improve strength, and the repair coating 202 made of microencapsulated polyurethane self-healing material is easy to repair at 60℃ without the need for excessively high temperatures.

[0038] Meanwhile, to improve tensile strength, specifically, the reinforcing mesh 203 is made of aramid fiber, and the hot melt adhesive layer 204 is made of activated EVA adhesive. The reinforcing mesh 203 made of aramid fiber has better tensile strength, and the hot melt adhesive layer 204 made of activated EVA adhesive avoids excessively high temperatures to bond, thus preventing paper deformation.

[0039] Furthermore, in order to quickly bond the two plastic sealant films, specifically, the melting point of the hot melt adhesive layer 204 is higher than that of the hot melt adhesive strip 206, and the size of the mounting groove 205 matches the size of the hot melt adhesive strip 206. By using the hot melt adhesive layer 204, which has a higher melting point than the hot melt adhesive strip 206, it is easier for the hot melt adhesive strip 206 to melt first and quickly bond the two plastic sealant films to seal the paper.

[0040] It is worth noting that, in order to facilitate accurate positioning of the laminated paper, the thermal coating 301 has a mesh structure, and the size and position of the cured resin 303 match the size and position of the thermal coating 301. The mesh thermal coating 301, which matches the size and position of the cured resin 303, facilitates more accurate marking and positioning of the paper to be laminated.

[0041] Finally, to facilitate fading, specifically, the heat-sensitive coating 301 is made of anthocyanins, and the color developer 304 is made of citric acid. The citric acid provides H... + Attacking the oxygen atom on the pyran ring of anthocyanin causes the chromophore to break. High temperature accelerates the reaction between anthocyanin and dissolved oxygen, generating colorless phenolic acid substances that facilitate fading.

[0042] Combination Figures 1-5 The specific usage process of the plastic sealing film of this embodiment is as follows:

[0043] 1: When this device is needed for laminating film, place the paper to be laminated on the side wall of the laminating film, apply another laminating film and heat it for lamination. The hot melt adhesive strip 206 melts first and adheres quickly. The hot melt adhesive layer 204 melts at a higher temperature to enhance durability. The wear-resistant layer 201 is bonded to the side wall of the substrate 1. The repair coating 202 is applied to the side wall of the wear-resistant layer 201. When scratches appear, hot air is used for repair. A reinforcing mesh 203 is installed inside the substrate 1, and reinforcing ribs 207 are installed around the substrate 1.

[0044] 2: Apply a heat-sensitive coating 301 to the side wall of the plastic sealant. The plastic sealant paper should be aligned with the markings before sealing. Heat the plastic sealant to melt the paraffin shell 302. The color developer 304 flows out and reacts with the heat-sensitive coating 301 at high temperature, changing color first and then fading. The cured resin 303 is then subjected to UV treatment.

[0045] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A plastic sealing film, characterized in that, The substrate (1) includes a base material (1), a reinforcing component (2) on the side wall of the base material (1), the reinforcing component (2) includes a wear-resistant layer (201), a repair coating (202) on the side wall of the wear-resistant layer (201), a reinforcing mesh (203) inside the base material (1), a hot melt adhesive layer (204) on the other side wall of the base material (1), a plurality of mounting grooves (205) on the other side wall of the hot melt adhesive layer (204), a hot melt adhesive strip (206) on the side wall of each of the mounting grooves (205), a reinforcing rib (207) on the four sides of the base material (1), the inner wall of the reinforcing rib (207) being fixedly connected to the wear-resistant layer (201) and the four sides of the hot melt adhesive layer (204), and a positioning component (3) on the side wall of the base material (1).

2. The molding film according to claim 1, characterized in that, The positioning component (3) includes a thermal coating (301), a paraffin shell (302) is embedded in the side wall of the thermal coating (301), a curing resin (303) is provided in the side wall of the thermal coating (301), a color developer (304) is provided in the inner circumference of the paraffin shell (302), and the top of the paraffin shell (302) is embedded in the curing resin (303).

3. The molding film according to claim 2, characterized in that, The wear-resistant layer (201) is made of transparent PET, and the repair coating (202) is made of microencapsulated polyurethane self-healing material.

4. The molding film according to claim 3, characterized in that, The reinforcing mesh (203) is made of aramid fiber, and the hot melt adhesive layer (204) is made of activated EVA adhesive.

5. The molding film according to claim 4, characterized in that, The melting point of the hot melt adhesive layer (204) is higher than that of the hot melt adhesive strip (206), and the size of the mounting groove (205) matches the size of the hot melt adhesive strip (206).

6. The molding film according to claim 5, characterized in that, The thermosensitive coating (301) has a mesh structure, and the size and position of the cured resin (303) match the size and position of the thermosensitive coating (301).

7. The molding film according to claim 6, characterized in that, The material of the heat-sensitive coating (301) is anthocyanin, and the material of the color developer (304) is citric acid.

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