Process for the preparation of high barrier containers

Abstract

The application relates to the technical field of containers and discloses a preparation method of a high-barrier container, which comprises the following preparation steps: 1) cutting a barrier film layer according to a set size; 2) placing a container body in a mold cavity of an injection molding machine, the container body being provided with an outer peripheral wall; 3) placing the barrier film layer in the mold cavity, the barrier film layer being arranged around the outer peripheral wall and being provided with an inner ring interval between the barrier film layer and the outer peripheral wall; and 4) injecting a fluid glue into the mold cavity, the glue filling the inner ring interval to form an inner film layer, and the glue covering the outer periphery of the barrier film layer. The device is placed in the mold cavity of the injection molding machine, the barrier film layer is arranged, the fluid glue is injected, the glue forms the inner film layer and an outer film layer, the inner film layer and the outer film layer clamp the barrier film layer in a facing direction, and the barrier film layer is wrapped around the outer peripheral wall of the container. The barrier film layer can have a high-barrier effect on external gas and moisture, so that the material placed in the container is highly separated from the outside, and the moisture-proof and sealing effects are achieved.

Description

Preparation method of high-barrier container Technical Field

[0001] This invention patent relates to the technical field of containers, and more specifically, to a method for preparing a high-barrier container. Background Technology

[0002] A container is a device used to hold materials, fluids, etc., and is mainly composed of a shell. Common containers include cups and pipes. Cups can hold materials and fluids, while pipes serve as containers for the flow of materials and fluids.

[0003] Currently, for some materials with high sealing requirements, they need to maintain a high level of airtightness in the container, which means that the container needs to have high barrier properties, including high gas barrier properties and high moisture barrier properties, to prevent gas and moisture from entering the interior of the container and causing contamination to the material.

[0004] In the prior art, materials placed in containers often need to have good sealing properties, that is, the containers need to have high barrier properties to prevent moisture and seal the materials. However, existing containers often have poor barrier properties, resulting in poor sealing of the materials. Summary of the Invention

[0005] The purpose of this invention is to provide a method for preparing a high-barrier container, which aims to solve the problem that containers in the prior art have poor barrier properties.

[0006] This invention is achieved through a method for preparing a high-barrier container, comprising the following preparation steps:

[0007] 1) Cut the barrier film layer according to the set dimensions;

[0008] 2) The container body is placed in the mold cavity of the injection molding machine, and the outer periphery of the container body has an outer peripheral wall;

[0009] 3) The barrier film layer is placed in the mold cavity, the barrier film layer is arranged around the outer peripheral wall, and there is an inner ring gap between the barrier film layer and the outer peripheral wall;

[0010] 4) Injecting a fluid adhesive into the mold cavity, the adhesive fills the inner ring spacer to form an inner film layer, and the adhesive covers the outer periphery of the barrier film layer to form an outer film layer. The container body, the inner film layer, the barrier film layer and the outer film layer form an integrated container.

[0011] Furthermore, in the preparation step 4), the inner sidewall of the inner membrane layer is covered and fixed on the outer peripheral wall, the inner sidewall of the barrier membrane layer is covered and fixed on the outer sidewall of the inner membrane layer, and the outer membrane layer is covered and fixed on the outer sidewall of the barrier membrane layer.

[0012] Furthermore, in the preparation step 3), multiple sequentially nested barrier film layers are arranged in the mold cavity, and the adjacent barrier film layers are connected by a tube adhesive layer.

[0013] Furthermore, in preparation step 3), an outer mesh layer is attached to the outer wall of the barrier film layer, and the outer mesh layer is arranged circumferentially around the barrier film layer; in preparation step 4), the outer mesh layer is fixed between the barrier film layer and the outer film layer, and the outer mesh layer is embedded in the outer wall of the barrier film layer and the inner wall of the outer film layer respectively.

[0014] Furthermore, in the preparation step 4), the outer mesh layer is embedded in the inner wall of the outer membrane layer, dividing the inner wall of the outer membrane layer into a mesh.

[0015] Furthermore, the outer network layer has multiple outer network ports, and the outer periphery of each outer network port has multiple outer network edges. The multiple outer network edges enclose the outer network port, and adjacent outer network edges intersect to form an outer network interface.

[0016] The diplomatic junction protrudes outward to form an outward protrusion. The top of the outward protrusion extends outward to form an outward expansion piece. The middle part of the outward expansion piece is joined to the top of the outward protrusion. The outer periphery of the outward expansion piece bends inward to form an outer ring cavity.

[0017] In the preparation step 4), after the fluid adhesive is injected into the mold cavity, the adhesive wraps around the outer protrusion and the outer expansion piece. The outer ring cavity is hollow. The adhesive passes through the outer mesh opening and combines with the barrier mesh layer. The outer protrusion and the outer expansion piece are embedded in the outer film layer. Multiple outer mesh edges divide the inner sidewall of the outer film layer into a grid.

[0018] Furthermore, in preparation step 3), an inner mesh layer is attached to the inner wall of the barrier film layer, and the inner mesh layer is arranged circumferentially around the barrier film layer; in preparation step 4), the inner mesh layer is fixed between the barrier film layer and the inner film layer, and the inner mesh layer is embedded in the inner wall of the barrier film layer and the outer wall of the inner film layer respectively.

[0019] Furthermore, in the preparation step 4), the inner mesh layer is embedded in the outer wall of the inner membrane layer, dividing the outer wall of the inner membrane layer into a mesh.

[0020] Furthermore, the inner network layer has multiple inner network ports, and the outer periphery of each inner network port has multiple inner network edges. The multiple inner network edges enclose the inner network port to form an inner network port, and adjacent inner network edges intersect to form an inner intersection position. The inner network ports and outer network ports are arranged in an inward and outward staggered manner, and the inner intersection position and outer intersection position are arranged in an inward and outward staggered manner.

[0021] Furthermore, the inner intersection protrusion has a hollow inner protrusion, the interior of which forms a hollow cavity, and the inner protrusion has multiple through holes communicating with the hollow cavity.

[0022] In preparation step 4), when a fluid adhesive is injected into the mold cavity, the adhesive fills the inner ring spacer to form an inner film layer. The adhesive penetrates the hollow cavity through multiple through-holes, filling the outer side of the hollow cavity, while the inner side of the hollow cavity is hollow.

[0023] Compared with existing technologies ， The method for preparing a high-barrier container provided by this invention involves placing the device in the mold cavity of an injection molding machine, arranging a barrier film layer, and injecting a fluid adhesive to form an inner film layer and an outer film layer. The inner and outer film layers sandwich the barrier film layer and wrap around the outer peripheral wall of the container, thereby forming an integral container. The barrier film layer can provide high barrier properties against external gases and moisture, thus highly isolating the material placed in the container from the outside world and providing moisture-proof and sealing functions. Attached Figure Description

[0024] Figure 1 is a cross-sectional schematic diagram of the high-barrier container provided by the present invention;

[0025] Figure 2 is a partial schematic diagram of the outer mesh layer provided by the present invention;

[0026] Figure 3 is a cross-sectional schematic diagram of the outer protrusion and the outer expansion piece provided by the present invention;

[0027] Figure 4 is a partial schematic diagram of the inner network layer provided by the present invention;

[0028] Figure 5 is a cross-sectional schematic diagram of the inner protrusion provided by the present invention. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0030] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0031] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0032] Referring to Figures 1-5, a preferred embodiment of the present invention is provided.

[0033] High-barrier containers can be used to contain materials, which can be solids, fluids, gases, etc.

[0034] The method for preparing a high-barrier container includes the following preparation steps:

[0035] 1) Cut the barrier film layer 101 according to the set dimensions;

[0036] 2) Place the body 200 in the mold cavity of the injection molding machine, and the outer periphery of the body 200 has an outer peripheral wall 201;

[0037] 3) The barrier film layer 101 is placed in the mold cavity, the barrier film layer 101 is arranged around the outer peripheral wall 201, and there is an inner ring gap between the barrier film layer 101 and the outer peripheral wall 201.

[0038] 4) Injecting fluid adhesive into the mold cavity, the adhesive fills the inner ring space to form an inner membrane layer 102, and the adhesive covers the outer periphery of the barrier membrane layer 101 to form an outer membrane layer 100. The container body 200, the inner membrane layer 102, the barrier membrane layer 101 and the outer membrane layer 100 form an integrated container.

[0039] The above-described method for preparing a high-barrier container involves placing the device in the mold cavity of an injection molding machine, arranging a barrier film layer 101, and injecting a fluid adhesive to form an inner film layer 102 and an outer film layer 100. The inner film layer 102 and the outer film layer 100 sandwich the barrier film layer 101 and wrap around the outer peripheral wall 201 of the container, thereby forming an integral container. The barrier film layer 101 can provide high barrier properties against external gases and moisture, thus highly isolating the material placed in the container from the outside world and providing moisture-proof and sealing functions.

[0040] In this embodiment, in preparation step 4), the inner sidewall of the inner membrane layer 102 is covered and fixed on the outer peripheral wall 201, the inner sidewall of the barrier membrane layer 101 is covered and fixed on the outer sidewall of the inner membrane layer 102, and the outer membrane layer 100 is covered and fixed on the outer sidewall of the barrier membrane layer 101.

[0041] In preparation step 3), multiple sequentially nested barrier film layers 101 are arranged in the mold cavity, and the tube adhesive layer connects adjacent barrier film layers 101 into one unit. In this way, multiple barrier film layers 101 can be realized, and the barrier performance is better.

[0042] In preparation step 3), an outer mesh layer 300 is attached to the outer wall of the barrier film layer 101, and the outer mesh layer 300 is arranged circumferentially around the barrier film layer 101. In preparation step 4), the outer mesh layer 300 is fixed between the barrier film layer 101 and the outer film layer 100, and the outer mesh layer 300 is embedded in both the outer wall of the barrier film layer 101 and the inner wall of the outer film layer 100. By arranging the outer mesh layer 300, an external support can be formed between the barrier film layer 101 and the outer film layer 100, making the connection between the two more stable and less prone to deformation.

[0043] In preparation step 4), the outer mesh layer 300 is embedded in the inner wall of the outer membrane layer 100, dividing the inner wall of the outer membrane layer 100 into a mesh, thereby melting the meshed inner wall of the outer membrane layer 100 with the barrier membrane layer 101 together, resulting in a more stable connection.

[0044] In this embodiment, the outer network layer 300 has multiple outer network ports 301, and the outer periphery of the outer network ports 301 has multiple outer network edges 302. The multiple outer network edges 302 enclose the outer network ports 301 to form the outer network ports 301, and adjacent outer network edges 302 intersect to form an outer network junction.

[0045] The diplomatic confluence protrudes outward to form an outward protrusion 304. The top of the outward protrusion 304 extends outward to form an outward expansion piece 303. The middle part of the outward expansion piece 303 is connected to the top of the outward protrusion 304. The outer periphery of the outward expansion piece 303 bends inward to form an outer ring cavity 305.

[0046] In preparation step 4), after the fluid adhesive is injected into the mold cavity, the adhesive wraps around the outer protrusion 304 and the outer expansion piece 303. The outer ring cavity 305 is hollow. The adhesive passes through the outer mesh opening 301 and combines with the barrier mesh layer. The outer protrusion 304 and the outer expansion piece 303 are embedded in the outer film layer 100. Multiple outer mesh edges 302 divide the inner sidewall of the outer film layer 100 into a grid.

[0047] By setting the outer protrusion 304 and the outer expansion piece 303, after the adhesive is injected, the outer expansion piece 303 and the outer protrusion 304 are embedded in the outer membrane layer 100, which makes the connection between the outer mesh layer 300 and the outer membrane layer 100 more stable. In addition, the outer ring cavity 305 is hollow, forming multiple hollow positions in the outer membrane layer 100, which can achieve hollow barrier in the outer membrane layer 100 and enhance the barrier properties of the entire container.

[0048] In this embodiment, in preparation step 3), an inner mesh layer 400 is attached to the inner wall of the barrier film layer 101, and the inner mesh layer 400 is arranged around the circumference of the barrier film layer 101; in preparation step 4), the inner mesh layer 400 is fixed between the barrier film layer 101 and the inner film layer 102, and the inner mesh layer 400 is embedded in the inner wall of the barrier film layer 101 and the outer wall of the inner film layer 102 respectively.

[0049] By arranging the inner mesh layer 400, an internal support can be formed between the barrier membrane layer 101 and the inner membrane layer 102, making the connection between the two more stable and less prone to deformation.

[0050] In this embodiment, in preparation step 4), the inner mesh layer 400 is embedded in the outer wall of the inner membrane layer 102, dividing the outer wall of the inner membrane layer 102 into a mesh. This allows the meshed outer wall of the inner membrane layer 102 to be fused together with the barrier membrane layer 101, resulting in a more stable connection.

[0051] In this embodiment, the inner network layer 400 has multiple inner network ports 401, and the outer periphery of the inner network ports 401 has multiple inner network edges 402. The multiple inner network edges 402 enclose the inner network ports 401 to form the inner network ports 401, and adjacent inner network edges 402 intersect to form an inner intersection position. The inner network ports 401 and the outer network ports 301 are arranged in an inward and outward staggered manner, and the inner intersection position and the outer intersection position are arranged in an inward and outward staggered manner.

[0052] The outer mesh layer 300 and the inner mesh layer 400 are sandwiched together with a barrier film layer 101, which facilitates the shaping of the barrier film layer 101 and avoids deformation such as twisting. When the barrier film layer 101 is combined with the inner film layer 102 and the outer film layer 100, the inner mesh layer 400 and the outer mesh layer 300 can play the role of internal and external support, and make the connection between the three more stable.

[0053] The internal network port 401 and the external network port 301 are arranged in a staggered manner, and the internal junction and the external junction are also arranged in a staggered manner. In this way, the connection position between the inner membrane layer 102 and the barrier membrane layer 101 is staggered from the connection position between the outer membrane layer 100 and the barrier membrane layer 101, making the connection more stable.

[0054] In this embodiment, the inner intersection protrusion has a hollow inner protrusion 403, and a hollow cavity 404 is formed inside the inner protrusion 403. The inner protrusion 403 is provided with a plurality of through holes 405 that connect the hollow cavity 404.

[0055] In preparation step 4), when fluid adhesive is injected into the mold cavity, the adhesive fills the inner ring space to form an inner film layer 102. The adhesive passes through multiple through holes 405 into the hollow cavity 404, filling the outer side of the hollow cavity 404. The inner side of the hollow cavity 404 is hollow.

[0056] By setting the inner protrusion 403, after the adhesive is injected, the inner membrane layer 102 wraps around the inner protrusion 403, which makes the connection between the inner mesh layer 400 and the inner membrane layer 102 more stable. In addition, the inner side of the hollow cavity 404 is hollow, forming multiple hollow positions in the inner membrane layer 102, which can achieve hollow barrier in the inner membrane layer 102 and enhance the barrier properties of the entire container.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for preparing a high-barrier container, characterized in that, The preparation process includes the following steps: 1) Cutting the barrier film layer according to a set size; 2) Placing the container body in the mold cavity of an injection molding machine, the outer periphery of the container body having an outer peripheral wall; 3) Placing the barrier film layer in the mold cavity, the barrier film layer being arranged around the outer peripheral wall and having an inner ring gap between it and the outer peripheral wall; 4) Injecting a fluid adhesive into the mold cavity, the adhesive filling the inner ring gap to form an inner film layer, the adhesive covering the outer periphery of the barrier film layer to form an outer film layer, the container body, the inner film layer, the barrier film layer, and the outer film layer forming an integrated container; In step 3), an outer mesh layer is attached to the outer wall of the barrier film layer, the outer mesh layer surrounding the barrier film layer. The outer mesh layer is arranged circumferentially; in the preparation step 4), the outer mesh layer is fixed between the barrier film layer and the outer film layer, and the outer mesh layer is embedded in the outer sidewall of the barrier film layer and the inner sidewall of the outer film layer respectively; the outer mesh layer has multiple outer mesh openings, and the outer periphery of the outer mesh openings has multiple outer mesh edges, the multiple outer mesh edges surround to form the outer mesh openings, and adjacent outer mesh edges intersect to form a diplomatic junction; the diplomatic junction protrudes outward to form an outer protrusion, the top of the outer protrusion extends outward to form an outer expansion piece, the middle part of the outer expansion piece is connected to the top of the outer protrusion, the outer periphery of the outer expansion piece bends inward, and the outer expansion piece bends to form an outer ring cavity; in the preparation step 4), when going to After the fluid-like adhesive is injected into the mold cavity, the adhesive encapsulates the outward protrusions and outward expansion pieces. The outer annular cavity is hollow, and the adhesive passes through the outer mesh openings and integrates with the barrier mesh layer. The outward protrusions and outward expansion pieces are embedded in the outer film layer, and multiple outer mesh edges divide the inner sidewall of the outer film layer into a grid pattern. In preparation step 3), an inner mesh layer is attached to the inner sidewall of the barrier film layer, and the inner mesh layer is arranged circumferentially around the barrier film layer. In preparation step 4), the inner mesh layer is fixed between the barrier film layer and the inner film layer, and the inner mesh layer is embedded in both the inner sidewall of the barrier film layer and the outer sidewall of the inner film layer. The inner mesh layer has multiple inner mesh openings. The outer periphery of the inner mesh opening has multiple inner mesh edges, which enclose the inner mesh opening to form an inner mesh opening. Adjacent inner mesh edges intersect to form an inner intersection position. The inner mesh opening and the outer mesh opening are arranged in an inward and outward staggered manner, and the inner intersection position and the outer intersection position are arranged in an inward and outward staggered manner. The inner intersection position has a hollow inner protrusion, and a hollow cavity is formed inside the inner protrusion. The inner protrusion has multiple through holes that connect to the hollow cavity. In the preparation step 4), when a fluid adhesive is injected into the mold cavity, the adhesive fills the inner ring spacer to form an inner film layer. The adhesive passes through multiple through holes into the hollow cavity and fills the outer side of the hollow cavity. The inner side of the hollow cavity is hollow.

2. The method for preparing a high-barrier container as described in claim 1, characterized in that, In preparation step 4), the inner sidewall of the inner membrane layer is covered and fixed on the outer peripheral wall, the inner sidewall of the barrier membrane layer is covered and fixed on the outer sidewall of the inner membrane layer, and the outer membrane layer is covered and fixed on the outer sidewall of the barrier membrane layer.

3. The method for preparing a high-barrier container as described in claim 1, characterized in that, In the preparation step 3), multiple sequentially nested barrier film layers are arranged in the mold cavity, and the adjacent barrier film layers are connected by a tube adhesive layer.

4. The method for preparing a high-barrier container as described in any one of claims 1 to 3, characterized in that, In step 4) of the preparation process, the outer mesh layer is embedded in the inner wall of the outer membrane layer, dividing the inner wall of the outer membrane layer into a mesh.

5. The method for preparing a high-barrier container as described in claim 4, characterized in that, In step 4) of the preparation process, the inner mesh layer is embedded in the outer wall of the inner membrane layer, and the outer wall of the inner membrane layer is divided into a mesh.

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