CN218930312U

CN218930312U - High-barrier polyolefin recyclable packaging bag

Info

Publication number: CN218930312U
Application number: CN202223216707.5U
Authority: CN
Inventors: 张志苗
Original assignee: Zhejiang Qinglan New Material Technology Co ltd
Current assignee: Zhejiang Qinglan New Material Technology Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-04-28
Anticipated expiration: 2032-12-01

Abstract

The utility model belongs to the technical field of packaging bags, and particularly relates to a high-barrier polyolefin recyclable packaging bag. The utility model provides a high-barrier polyolefin recyclable packaging bag, which aims at the problems that a unfolding assembly and a bag body in the prior art are in a fixed connection mode and cannot be disassembled and assembled, so that the bag body cannot be recycled and the resource waste is serious. The opening assembly and the bag body are detachably connected, so that after the opening assembly is used, the opening assembly can be detached and applied to other bag bodies, recycling is realized, and resources are saved.

Description

High-barrier polyolefin recyclable packaging bag

Technical Field

The utility model belongs to the technical field of packaging bags, and particularly relates to a high-barrier polyolefin recyclable packaging bag.

Background

The packaging bag is an indispensable article in daily life of people and is often used for containing other articles. The packaging bag is widely used for producing various articles in life and industrial production because of the advantages of low cost, light weight, large capacity and convenient storage. Large-sized packaging bags cannot be kept in an open state for a long time in a natural state due to large size, so that packaging bags with a stretching structure exist in the prior art.

For example, chinese patent application discloses a package bag that is easy to tear and tear [ application number: 201921863186.8 the utility model relates to a packaging bag body formed by enclosing a film which is easy to tear and easy to uncover, wherein a containing cavity is formed in the packaging bag body, the outer edge of the packaging bag body comprises a plurality of edge seals which are connected end to end, two ends of each edge seal are respectively connected with two edge seals which are not connected, at least one edge seal side edge is provided with a tearing opening which is sunken towards the inside of the edge seal, the central line of the tearing opening is vertical to the edge seal, the central line of the tearing opening penetrates through the edge seal, and the heat sealing strength of the edge seal is lower than that of the edge seal. The packaging bag is characterized in that the bottom of the packaging bag body is connected with a supporting seat, and the supporting seat is connected end to end and surrounds the edge of the bottom of the packaging bag body. The bottom of the packaging bag body is also provided with a spreading component which can spread the packaging bag body, one end of the spreading component can move close to or far away from the packaging bag body, and the other end of the spreading component is fixedly connected on the supporting seat.

The bottom of the packaging bag is provided with the opening assembly so as to realize the opening of the packaging bag. However, in the patent of the utility model, the opening assembly and the bag body are fixedly connected and cannot be disassembled, so that the opening assembly and the bag body cannot be recycled, and the resource waste is serious.

Disclosure of Invention

The utility model aims to solve the problems and provide a high-barrier polyolefin recyclable packaging bag with a detachable part structure and repeated use.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a but high separation polyolefin recovery wrapping bag, includes the bag body of being made by the film, this internal holding cavity that has of bag, be equipped with on the at least one lateral wall of bag body and make the lateral wall of bag body keep expanding the subassembly that struts, prop up subassembly and bag body detachable connection.

In the high-barrier polyolefin recyclable packaging bag, the supporting arm comprises a mounting connecting piece and a supporting arm connected to the side face of the mounting connecting piece, the supporting arm extends along the direction parallel to the surface of the side wall of the bag body, a mounting hole is further formed in the bag body, a sealing cap is fixedly arranged in the mounting hole, a matching through hole is formed in the center of the sealing cap, a connecting column is fixed to one side, close to the mounting hole, of the mounting connecting piece, and the connecting column is in interference fit with the matching through hole.

In the high-barrier polyolefin recyclable packaging bag, a circle of sealing lip is surrounded on the outer edge of the sealing cap, the mounting connecting piece is pressed on the upper surface of the sealing lip, and the lower surface of the sealing lip is pressed on the side surface of the bag body.

In the high-barrier polyolefin recyclable packaging bag, the installation connecting piece is cuboid, the four sides of the installation connecting piece are fixedly connected with a supporting arm, and the supporting arm is of a telescopic structure.

In the high-barrier polyolefin recyclable packaging bag, the opening assembly further comprises fixing blocks fixedly connected to the side faces of the bag body, openings are formed in one sides, close to the supporting arms, of the fixing blocks, one ends, far away from the installation connecting pieces, of the supporting arms extend into the fixing blocks through the openings, and the fixing blocks are in one-to-one correspondence with the supporting arms.

In the high-barrier polyolefin recyclable packaging bag, the film sequentially comprises a biaxially oriented polypropylene layer, a high-barrier layer and a heat sealing layer from outside to inside, and the heat sealing layer is attached to the accommodating cavity.

In the high-barrier polyolefin recyclable packaging bag, the high-barrier layer comprises an aluminized polypropylene layer and a polyvinyl alcohol coating layer formed by coating polyvinyl alcohol on the surface of the aluminized polypropylene layer.

In the high-barrier polyolefin recyclable packaging bag, the biaxially-oriented polypropylene layer is fixedly connected with the high-barrier layer through the first adhesive layer, and the high-barrier layer is fixedly connected with the heat sealing layer through the second adhesive layer.

In the high-barrier polyolefin recyclable packaging bag, the first adhesive layer and/or the second adhesive layer is solvent-free glue; the heat seal layer is made of chlorinated polyethylene material.

In the high-barrier polyolefin recyclable packaging bag, a printing layer is further arranged between the biaxially oriented polypropylene layer and the first adhesive layer.

Compared with the prior art, the utility model has the advantages that:

1. the opening assembly and the bag body are detachably connected, so that after the opening assembly is used, the opening assembly can be detached and applied to other bag bodies, recycling is realized, and resources are saved.

2. The high barrier layer of the utility model uses the polyvinyl alcohol coating layer formed by coating the polyvinyl alcohol, so that the film has obvious improvement on oxygen resistance, and is environment-friendly and free of emission.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic structural view of the bag body;

FIG. 3 is an exploded view of the present utility model;

FIG. 4 is a schematic structural view of a film;

in the figure: bag body 1, accommodation cavity 2, opening assembly 3, mounting connector 31, support arm 32, mounting hole 33, sealing cap 34, mating through hole 35, sealing lip 36, fixed block 37, opening 38, film 100, biaxially oriented polypropylene layer 101, high barrier layer 102, heat seal layer 103, aluminized polypropylene layer 104, polyvinyl alcohol coating 105, first adhesive layer 106, second adhesive layer 107, print layer 108.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description.

Example 1

The embodiment provides a high-barrier polyolefin recyclable packaging bag, which is shown in fig. 1-3, and comprises a bag body 1 made of a film 100, wherein a containing cavity 2 is formed in the bag body 1, a stretching assembly 3 capable of keeping the side wall of the bag body 1 in a stretched state is arranged on at least one side wall of the bag body 1, and the stretching assembly 3 is detachably connected with the bag body 1.

In use, a user can use the opening assembly 3 to maintain at least one side wall of the bag body 1 in an open state, thereby ensuring that the bag body 1 can maintain an open state for a long time in a natural state even under a large volume. And the opening assembly 3 is detachably connected with the bag body 1, and can be reused in a detachable mounting mode. Therefore, the opening component 3 and the bag body 1 are detachably connected, so that after the opening component 3 is used, the opening component 3 can be detached and applied to other bag bodies 1, recycling is realized, and resources are saved.

As shown in fig. 4, the film 100 sequentially includes a biaxially oriented polypropylene layer 101, a high barrier layer 102 and a heat seal layer 103 from the outside to the inside, and the heat seal layer 103 is attached to the accommodating cavity 2.

Biaxially oriented polypropylene layer 101 is made of biaxially oriented polypropylene film, which is generally a multilayer co-extruded film, and is made by co-extruding polypropylene particles to form a sheet and stretching the sheet in both longitudinal and transverse directions.

The longitudinally stretched polyethylene layer 101 is fixedly connected with the high barrier layer 102 through the first adhesive layer 106. The first adhesive layer 106 is to adhere the upper and lower layers to prevent separation between the layers. But preferably the first adhesive layer 106 is a solvent-free glue or an aqueous glue. The solvent-free glue or the water-based glue is adopted, so that the use of ethyl acetate is reduced, and the environmental protection idea of emission reduction is achieved. The utility model adopts a double-component solvent-free glue 518 which is produced by Boston gum (Shanghai) management Co., ltd, and has the model of HERBERTS-2K-LF 518/H108.

The high barrier layer 102 comprises an aluminized polypropylene layer 104 and a polyvinyl alcohol coating layer 105 formed by coating polyvinyl alcohol on the surface of the aluminized polypropylene layer 104. The high barrier layer 102 of the utility model uses the polyvinyl alcohol coating layer 105 formed by coating the polyvinyl alcohol, so that the film has obvious improvement on oxygen resistance, and is environment-friendly and free of emission.

The heat-seal layer 103 is made of chlorinated polyethylene, and has excellent heat-seal properties while having excellent sealability.

As shown in fig. 1, a printing layer 108 is further disposed between the biaxially oriented polypropylene layer 101 and the first adhesive layer 106. The printing layer is used for displaying the design pattern.

As shown in fig. 3, the opening assembly 3 includes a mounting connection member 31 and a support arm 32 connected to a side surface of the mounting connection member 31, the support arm 32 extends along a direction parallel to a side wall surface of the bag body 1, a mounting hole 33 is further formed in the bag body 1, a sealing cap 34 is fixedly disposed in the mounting hole 33, a mating through hole 35 is formed in a center of the sealing cap 34, and a connection post (not shown in the drawing) is fixed to a side, close to the mounting hole 33, of the mounting connection member 31, and the connection post is in interference fit with the mating through hole 35.

The sealing cap 34 is made of an elastic material, which may be a rubber material, for example. The connection column is in interference fit with the sealing cap 34 to achieve the installation with the bag body 1, and the installation connection piece 31 with the supporting arm 32 is convenient to detach. The interference fit of the connecting post and the sealing cap 34 also enables sealing of the joint.

Preferably, the outer edge of the sealing cap 34 is surrounded by a ring of sealing lips 36, the mounting connector 31 is pressed against the upper surface of the sealing lips 36, and the lower surface of the sealing lips 36 is pressed against the side surface of the bag body 1. The sealing lip 36 can further ensure a sealing effect.

Preferably, the mounting connection member 31 is rectangular, four sides of the mounting connection member 31 are fixedly connected with a support arm 32, and the support arm 32 is of a telescopic structure. This ensures that the sides of the bag body 1 are uniformly spread. The support arm 32 may be implemented using a telescoping specific structure commonly used in the art.

As shown in fig. 3, the opening assembly 3 further includes a fixing block 37 fixedly connected to the side of the bag body 1, an opening 38 is formed on a side, close to the support arm 32, of the fixing block 37, one end, far away from the mounting connection member 31, of the support arm 32 extends into the fixing block 37 through the opening 38, and the fixing blocks 37 are arranged in one-to-one correspondence with the support arm 32.

Preferably, the upper surface of the fixing block 37 is further provided with a fastening hole, the end of the supporting arm 32 is further provided with a telescopic clamping block, one side of the clamping block, which is close to the fixing block 37, is provided with an inclined surface, and when the supporting arm 32 extends into the fixing block 37, the clamping block is mutually matched with the fastening hole. This allows the support arm 32 to be connected to the bag body 1 via the fixing block 37, preventing the problem of retraction of the support arm 32 during use.

Application example 1

The film 100 provided in example 1 was taken as the test material 1, in which the thickness of the longitudinally stretched polyethylene layer 101 was 20 micrometers, the thickness of the high barrier layer 102 was 18 micrometers, and the thickness of the heat seal layer 103 was 70 micrometers. A film of an aluminum-plated polypropylene layer 104 having a thickness of 18 μm, which was not coated with polyvinyl alcohol, was used as the test material 2, and the other structures were identical to those of the film 100. The water vapor permeation amount and the oxygen permeation amount of the two were measured by the methods described in GB/T1037 and GB/T1038, respectively, and the results of the two experiments were shown in the following table:

analysis of results: from the data, the film 100 provided by the utility model has lower oxygen transmission amount and water vapor transmission amount and better barrier property, so that the expected purpose of the utility model is achieved.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although the terms of the bag body 1, the accommodating cavity 2, the opening member 3, the mounting connector 31, the support arm 32, the mounting hole 33, the sealing cap 34, the fitting through hole 35, the sealing lip 36, the fixing block 37, the opening 38, the film 100, the biaxially oriented polypropylene layer 101, the high barrier layer 102, the heat seal layer 103, the aluminized polypropylene layer 104, the polyvinyl alcohol coating layer 105, the first adhesive layer 106, the second adhesive layer 107, the printing layer 108, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims

1. The utility model provides a high resistant separates polyolefin recoverable wrapping bag, includes bag body (1) that are made by film (100), bag body (1) have in hold cavity (2), its characterized in that: at least one side wall of the bag body (1) is provided with a stretching assembly (3) which can keep the side wall of the bag body (1) in a stretched state, and the stretching assembly (3) is detachably connected with the bag body (1).

2. The high barrier polyolefin recycling package of claim 1 wherein: the opening assembly (3) comprises a mounting connecting piece (31) and a supporting arm (32) connected to the side face of the mounting connecting piece (31), the supporting arm (32) extends along the direction parallel to the side wall surface of the bag body (1), a mounting hole (33) is further formed in the bag body (1), a sealing cap (34) is fixedly arranged in the mounting hole (33), a matching through hole (35) is formed in the center of the sealing cap (34), and a connecting column is fixed to one side, close to the mounting hole (33), of the mounting connecting piece (31) and in interference fit with the matching through hole (35).

3. The high barrier polyolefin recycling package of claim 2, wherein: the outer edge of the sealing cap (34) is surrounded by a circle of sealing lip (36), the mounting connecting piece (31) is pressed on the upper surface of the sealing lip (36), and the lower surface of the sealing lip (36) is pressed on the side surface of the bag body (1).

4. The high barrier polyolefin recycling package of claim 2, wherein: the installation connecting piece (31) is cuboid, four sides of the installation connecting piece (31) are fixedly connected with a supporting arm (32), and the supporting arm (32) is of a telescopic structure.

5. The high barrier polyolefin recycling package of claim 2, wherein: the opening assembly (3) further comprises a fixed block (37) fixedly connected to the side face of the bag body (1), an opening (38) is formed in one side, close to the supporting arm (32), of the fixed block (37), one end, far away from the mounting connecting piece (31), of the supporting arm (32) extends into the fixed block (37) through the opening (38), and the fixed block (37) and the supporting arm (32) are in one-to-one correspondence.

6. The high barrier polyolefin recycling package of claim 1 wherein: the film (100) sequentially comprises a biaxially oriented polypropylene layer (101), a high barrier layer (102) and a heat sealing layer (103) from outside to inside, and the heat sealing layer (103) is attached to the accommodating cavity (2).

7. The high barrier polyolefin recycling package of claim 6 wherein: the high barrier layer (102) comprises an aluminized polypropylene layer (104) and a polyvinyl alcohol coating layer (105) formed by coating polyvinyl alcohol on the surface of the aluminized polypropylene layer (104).

8. The high barrier polyolefin recycling package of claim 6 wherein: the biaxially oriented polypropylene layer (101) is fixedly connected with the high barrier layer (102) through the first adhesive layer (106), and the high barrier layer (102) is fixedly connected with the heat sealing layer (103) through the second adhesive layer (107).

9. The high barrier polyolefin recycling package of claim 8 wherein: the first adhesive layer (106) and/or the second adhesive layer (107) are solvent-free glue; the heat seal layer (103) is made of chlorinated polyethylene material.

10. The high barrier polyolefin recycling package of claim 8 wherein: and a printing layer (108) is further arranged between the biaxially oriented polypropylene layer (101) and the first adhesive layer (106).