Easily-uncovered paper-plastic composite packaging container cover film

Abstract

The utility model discloses a paper-plastic composite packaging container cover film easy to uncover, which relates to the technical field of container cover films and comprises a tensile layer, a first bonding layer is arranged at the bottom of the tensile layer, a blocking layer is arranged at the bottom of the first bonding layer, a second bonding layer is arranged at the bottom of the blocking layer, and a heat sealing layer is arranged at the bottom of the second bonding layer. An easy-to-uncover layer is arranged at the bottom of the heat sealing layer, and a tearing piece is integrally arranged on the outer side of the tensile layer. Through the arrangement of the easy-to-uncover layer, the cover film cannot be fused with the PE layer on the paper container, the tearing piece is pinched by the thumb and the index finger, the cover film is convenient to uncover, the tensile property and the strength of the cover film are improved through the tensile layer, the cover film is not prone to being damaged in the transportation process, the barrier property of the cover film is improved through the barrier layer, oxygen, water and light are effectively isolated, and the service life of the cover film is prolonged. The shelf life of products in the container is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to container cover film technical field, specifically an easy to open paper plastic composite packaging container cover film. BACKGROUND

[0002] Container packaging cover film is mainly used for the sealing protection of container, has the multiple effect such as moisture-proof, dustproof, oxidation prevention, cover film is usually made of polypropylene, polyethylene or aluminum foil synthetic resin, these materials have good elasticity and flexibility, after use, cover film should be stored in dry, cool place, avoid direct sunlight and high temperature.

[0003] The existing container cover film has poor opening performance in use, and the user needs to tear it open with force, which can cause the contents to splash out or the package to be damaged, and the strength of the cover film is poor, which can be damaged during transportation.

[0004] Based on this, an easy-to-open paper-plastic composite packaging container cover film is provided, which can eliminate the drawbacks of the existing device. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an easy-to-open paper-plastic composite packaging container cover film to solve the problem of inconvenient opening and poor strength in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] An easy-to-open paper-plastic composite packaging container cover film includes a tensile layer, a first adhesive layer is provided at the bottom of the tensile layer, a barrier layer is provided at the bottom of the first adhesive layer, a second adhesive layer is provided at the bottom of the barrier layer, a heat-seal layer is provided at the bottom of the second adhesive layer, an easy-to-open layer is provided at the bottom of the heat-seal layer, and a tear-off piece is integrated on the outside of the tensile layer.

[0008] On the basis of the above technical scheme, the utility model also provides the following optional technical schemes:

[0009] In an optional scheme, the tensile layer includes a PET film layer, a BOPP film layer is provided at the bottom of the PET film layer, and a printing layer is provided at the top of the PET film layer.

[0010] In an optional scheme, the barrier layer includes an aluminum-plated film layer, and an EVOH film layer is provided at the bottom of the aluminum-plated film layer.

[0011] In an optional scheme, the aluminum-plated film layer and the EVOH film layer are attached together by hot pressing.

[0012] In an optional scheme, the PET film layer and the BOPP film layer are attached together by an adhesive.

[0013] In an alternative, the material of the heat-seal layer is PE.

[0014] In an alternative, the material of the easy-to-unfold layer is PVDC coating film.

[0015] In an alternative, the material of the first and second adhesive layers is polyurethane adhesive.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1. The easy-to-unfold layer is provided, so that the cover film does not fuse with the PE layer on the paper container. The thumb and index finger pinch the tear-off piece, which facilitates unfolding of the cover film. The tensile layer improves the tensile resistance and strength of the cover film, so that the cover film is not easily damaged during transportation. The barrier layer improves the barrier property of the cover film, effectively isolates oxygen, moisture and light, and prolongs the shelf life of the product in the container.

[0018] 2. The outer part of the PET film layer is used to print the corresponding product information. After the PET film layer and the BOPP film layer are combined, they have the characteristics of cold resistance and low-temperature heat-seal tensile force, can maintain the integrity and sealing of the package in a low-temperature environment, and improve the tensile resistance and strength of the cover film, so that the cover film is not easily damaged during transportation. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0020] Figure 2 It is a schematic diagram of the disassembled structure of the present application.

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the present application.

[0022] Figure 4 It is a schematic diagram of the tensile layer structure of the present application.

[0023] Figure 5 It is a schematic diagram of the barrier layer structure of the present application.

[0024] Legend of reference signs: 1, tensile layer; 11, PET film layer; 12, BOPP film layer; 13, printing layer; 2, tear-off piece; 3, barrier layer; 31, aluminum-coated film layer; 32, EVOH film layer; 4, heat-seal layer; 5, first adhesive layer; 6, second adhesive layer; 7, easy-to-unfold layer. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the present application will be further described in detail below with reference to the drawings and examples.

[0026] In one embodiment, as shown in Figures 1-5 , a peelable paper-plastic composite packaging container cover film comprises a tensile layer 1, the bottom of the tensile layer 1 is provided with a first adhesive layer 5, the bottom of the first adhesive layer 5 is provided with a barrier layer 3, the bottom of the barrier layer 3 is provided with a second adhesive layer 6, the bottom of the second adhesive layer 6 is provided with a heat-seal layer 4, the bottom of the heat-seal layer 4 is provided with a peelable layer 7, and the outer side of the tensile layer 1 is integrated with a tear-off piece 2.

[0027] In this embodiment, the peelable layer 7 is provided so that the cover film does not fuse with the PE layer on the paper container. The thumb and index finger pinch the tear-off piece 2 to facilitate the peeling of the cover film. The tensile layer 1 improves the tensile resistance and strength of the cover film, so that the cover film is not easily damaged during transportation. The barrier layer 3 improves the barrier property of the cover film, effectively isolating oxygen, moisture and light, and prolonging the shelf life of the product in the container.

[0028] In one embodiment, as shown in Figure 1 and Figure 3 , the tensile layer 1 comprises a PET film layer 11, the bottom of the PET film layer 11 is provided with a BOPP film layer 12, and the top of the PET film layer 11 is provided with a printing layer 13. The PET film layer 11 and the BOPP film layer 12 are pasted together by an adhesive. The outside of the PET film layer 11 is used for printing corresponding product information. After the combination of the PET film layer 11 and the BOPP film layer 12, the combination has the characteristics of cold resistance and low-temperature heat-seal tensile strength, can maintain the integrity and sealing of the package in a low-temperature environment, and improves the tensile resistance and strength of the cover film, so that the cover film is not easily damaged during transportation.

[0029] In one embodiment, as shown in Figure 1 and Figure 3 , the barrier layer 3 comprises an aluminum-plated film layer 31, the bottom of the aluminum-plated film layer 31 is provided with an EVOH film layer 32, and the aluminum-plated film layer 31 and the EVOH film layer 32 are pasted together by a hot-pressing method. The aluminum-plated film layer 31 has excellent barrier properties, can effectively block oxygen, water, carbon dioxide, odor, etc., and the EVOH film layer 32 has good barrier effect on water vapor, etc., and has excellent folding resistance and toughness. The combination of the two can further enhance the barrier properties of the package, ensure the freshness and preservation of the product in the package, and prolong the shelf life. Compared with the traditional aluminum foil packaging, the barrier layer 3 significantly reduces the use amount of aluminum metal, thereby saving costs.

[0030] In one embodiment, as shown in Figure 1 and Figure 3As shown, the material of the heat-seal layer 4 is PE, the material of the easy-to-open layer 7 is a PVDC coating film, and the materials of the first adhesive layer 5 and the second adhesive layer 6 are both polyurethane adhesive. The first adhesive layer 5 and the second adhesive layer 6 effectively combine the tensile layer 1, the barrier layer 3, and the heat-seal layer 4 together to form a cover film. The heat-seal layer 4 is heat-sealed to the end of the container by heating.

[0031] The above embodiment discloses an easy-to-open paper-plastic composite packaging container cover film. The outer part of the PET film layer 11 is used for printing corresponding product information. The PET film layer 11 and the BOPP film layer 12 have the characteristics of cold resistance and low-temperature heat-seal tensile strength, can maintain the integrity and sealing of the package in a low-temperature environment, and improve the tensile resistance and strength of the cover film, so that the cover film is not easy to be damaged during transportation. The aluminum-plated film layer 31 has excellent barrier properties and can effectively block oxygen, water, carbon dioxide, odor, etc. The EVOH film layer 32 has good barrier effect to water vapor, etc., and has excellent folding resistance and toughness. The combination of the two can further enhance the barrier properties of the package, ensure the freshness and preservation of the products in the package, and prolong the shelf life. Compared with traditional aluminum foil packaging, the barrier layer 3 significantly reduces the use amount of aluminum metal, thereby saving costs. The cover film is placed at the end of the container, the heat-seal layer 4 is heat-sealed to the end of the container by heating, and the easy-to-open layer 7 is arranged to prevent the cover film from being fused with the PE layer on the paper container. The thumb and index finger pinch the tear-off piece 2 to easily open the cover film.

[0032] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A peelable paper-plastic composite packaging container lid film comprising a tensile resistant layer (1), characterized in that, The bottom of the tensile layer (1) is provided with a first adhesive layer (5), the bottom of the first adhesive layer (5) is provided with a barrier layer (3), the bottom of the barrier layer (3) is provided with a second adhesive layer (6), the bottom of the second adhesive layer (6) is provided with a heat sealing layer (4), the bottom of the heat sealing layer (4) is provided with an easy-to-open layer (7), and the outer side of the tensile layer (1) is integrated with a tear-off piece (2).

2. An easy open paper / plastic lamination packaging container lid film according to claim 1, wherein, The tensile layer (1) comprises a PET film layer (11), the bottom of the PET film layer (11) is provided with a BOPP film layer (12), and the top of the PET film layer (11) is provided with a printing layer (13).

3. An easy open paper / plastic lamination packaging container lid film according to claim 1, wherein, The barrier layer (3) comprises an aluminized film layer (31), and the bottom of the aluminized film layer (31) is provided with an EVOH film layer (32).

4. An easy open paper / plastic lamination packaging container lid film according to claim 3, wherein The aluminized film layer (31) and the EVOH film layer (32) are attached together by a hot pressing composite method.

5. An easy open paper / plastic lamination packaging container lid film according to claim 2, wherein, The PET film layer (11) and the BOPP film layer (12) are attached together by an adhesive.

6. An easy open paper / plastic lamination packaging container lid film according to claim 1, wherein The material of the heat sealing layer (4) is PE.

7. An easy open paper / plastic lamination packaging container lid film according to claim 1, wherein The material of the easy-to-open layer (7) is a PVDC coated film.

8. An easy open paper / plastic lamination packaging container lid film according to claim 1, wherein, The materials of the first adhesive layer (5) and the second adhesive layer (6) are both polyurethane adhesive.

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