Composite film heat-sealing packaging bag based on water-based heat-sealing adhesive

Abstract

The utility model discloses a composite film heat-sealing packaging bag based on water-based heat-sealing glue. The composite film heat-sealing packaging bag comprises an inner film. A complete composite film is arranged and comprises the inner film, the heat insulation layer pasted on the outer wall of the inner film and the outer protection layer pasted on the outer wall of the heat insulation layer, the pasting layers are arranged on the two sides of the inner film, the nanometer adhesive tape is arranged on the inner walls of the pasting layers, and the two heat sealing adhesive pieces are arranged on the upper side and the lower side of the inner wall of the inner film. The packaging film is turned over and folded up and down along the center of the composite film, the upper end and the lower end of the bonding layer are attached, after the nanometer adhesive tape is pressed for bonding, a bag structure with an upward opening can be formed, after meat is placed in the inner film, the heat-sealing adhesive sheets are heated, then the two heat-sealing adhesive sheets are attached, packaging can be completed, and using is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of heat-sealed packaging bags, in particular to a composite film heat-sealed packaging bag based on water-based heat-sealing glue. Background Art

[0002] For high-temperature sterilized meat products using high-barrier packaging materials, not only the shelf life is longer when stored at room temperature, but also transportation, warehousing, and sales are very convenient, which is very suitable for the consumption needs of modern society. Therefore, vigorously developing the production of meat products that are resistant to storage at room temperature is an important product development direction for the meat food industry. And the packaging industry conforms to this development trend, makes contributions and innovations, which can not only meet the needs of the food industry, but also win a broad market for itself.

[0003] In the process of meat product production, most high-temperature sterilized meat products are packaged in composite film heat-sealed packaging bags. Most of the existing heat-sealed packaging bags form a bag structure after two composite films are adhered. However, when two independent composite films are adhered, there are too many adhered surfaces, which is not convenient for adhesion. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, the abstract of the specification and the title of the utility model of this application to avoid obscuring the purpose of this part, the abstract of the specification and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] In view of the above and / or problems existing in an existing composite film heat-sealed packaging bag based on water-based heat-sealing glue, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide a composite film heat-sealed packaging bag based on water-based heat-sealing glue. By providing a complete composite film, including an inner film, a heat insulation layer adhered to the outer wall of the inner film, and an outer protection layer adhered to the outer wall of the heat insulation layer, adhesive layers are provided on both sides of the inner film, nano glue strips are provided on the inner wall of the adhesive layer, and two heat-sealing films are provided on the upper and lower sides of the inner wall of the inner film. When in use, turn and fold the composite film up and down along the center, so that the upper and lower ends of the adhesive layer are adhered, and after pressing the nano glue strips for adhesion, a bag structure with an upward opening can be formed. After placing the meat product inside the inner film, heating the heat-sealing films and then adhering the two heat-sealing films can complete the encapsulation, which is convenient to use.

[0007] To solve the above technical problems, according to one aspect of the present utility model, the following technical solutions are provided:

[0008] A composite film heat-sealed packaging bag based on water-based heat-sealing glue, which includes:

[0009] Inner membrane, with heat-sealing films provided at the top and bottom of the side wall of the inner membrane. There are adhesive layers on both sides of the inner membrane, and nano adhesive strips are provided on the side walls of the adhesive layers;

[0010] Heat insulation layer, attached to the side wall of the inner membrane;

[0011] Outer protective layer, attached to the side wall of the heat insulation layer.

[0012] As a preferred solution of the composite film heat-sealing packaging bag based on water-based heat-sealing glue described in the present invention, wherein the outer protective layer includes an aluminum foil layer and two cotton cloth layers on both sides of the aluminum foil layer, and an adhesive layer between the cotton cloth layer and the aluminum foil layer.

[0013] As a preferred solution of the composite film heat-sealing packaging bag based on water-based heat-sealing glue described in the present invention, wherein a first protrusion is installed on the inner wall of the cotton cloth layer, and the first protrusion penetrates through the adhesive layer.

[0014] As a preferred solution of the composite film heat-sealing packaging bag based on water-based heat-sealing glue described in the present invention, wherein a second protrusion is installed on the side wall of the inner cotton cloth layer, a slot is provided on the side wall of the heat insulation layer, and the second protrusion penetrates through the slot and is connected to the outer wall of the inner membrane.

[0015] As a preferred solution of the composite film heat-sealing packaging bag based on water-based heat-sealing glue described in the present invention, wherein two positioning convex strips are symmetrically arranged at the central position of the outer wall of the outer cotton cloth layer, and the center line of the side wall of the cotton cloth layer is located between the two positioning convex strips.

[0016] Compared with the prior art: By providing a complete composite film, including an inner membrane, a heat insulation layer pasted on the outer wall of the inner membrane, and an outer protective layer pasted on the outer wall of the heat insulation layer, adhesive layers are provided on both sides of the inner membrane, nano adhesive strips are provided on the inner walls of the adhesive layers, and two heat-sealing films are provided on the upper and lower sides of the inner wall of the inner membrane. During use, turn the composite film over and fold it in half up and down along the center, so that the upper and lower ends of the adhesive layer are fitted together. After pressing the nano adhesive strips for pasting, a bag-like structure with an upward opening can be formed. After placing the meat product inside the inner membrane, heating the heat-sealing films and then fitting the two heat-sealing films together can complete the packaging, which is convenient to use. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the drawings and detailed embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0018] Figure 1This is the overall structure diagram of a composite film heat-sealing packaging bag based on water-based hot melt adhesive of the present utility model;

[0019] Figure 2 This is the unfolded structure diagram of a composite film heat-sealing packaging bag based on water-based hot melt adhesive of the present utility model;

[0020] Figure 3 This is the partial structure diagram of a composite film heat-sealing packaging bag based on water-based hot melt adhesive of the present utility model;

[0021] Figure 4 This is the sectional view of the outer protective layer of a composite film heat-sealing packaging bag based on water-based hot melt adhesive of the present utility model. Specific embodiments

[0022] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0023] Secondly, the present utility model will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present utility model in detail, for the convenience of explanation, the sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model herein. In addition, the three-dimensional spatial dimensions of length, width, and depth should be included in actual production.

[0024] To make the purpose, technical solution, and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] The present utility model provides a composite film heat-sealing packaging bag based on water-based hot melt adhesive. By providing a complete composite film, including an inner film, a heat insulation layer pasted on the outer wall of the inner film, and an outer protective layer pasted on the outer wall of the heat insulation layer, adhesive layers are provided on both sides of the inner film, nano adhesive strips are provided on the inner wall of the adhesive layers, and two heat-sealing films are provided on the upper and lower sides of the inner wall of the inner film. When in use, it is turned over and folded in half up and down along the center of the composite film to make the upper and lower ends of the adhesive layer fit, and after pressing the nano adhesive strips for pasting, a bag-like structure with an upward opening can be formed. After placing the meat product inside the inner film, heating the heat-sealing films and then fitting the two heat-sealing films can complete the packaging, which is convenient to use.

[0026] Figures 1-4 Shown is the first structural schematic diagram of an embodiment of a composite film heat-sealing packaging bag based on water-based hot melt adhesive of the present utility model. Please refer to Figures 1-4 , A composite film heat-sealing packaging bag based on water-based hot melt adhesive in this embodiment includes an inner film 100, a heat insulation layer 200, and an outer protective layer 300.

[0027] Thermal sealing films 110 are provided at both the top and bottom of the side walls of the inner membrane 100. There are adhesive layers 120 on both sides of the inner membrane 100, and nano adhesive strips 130 are provided on the side walls of the adhesive layers 120. When in use, the inner membrane 100 is folded along the midline until the two adhesive layers 120 are folded up and down. After the nano adhesive strips 130 are pasted up and down, the inner membrane 100 forms a bag-like structure with an upward opening. After placing the meat product inside the inner membrane 100, heat the thermal sealing films 110 and paste the two thermal sealing films 110 together to seal the inner membrane 100 and package the meat product.

[0028] The heat insulation layer 200 is attached to the side wall of the inner membrane 100, and the heat insulation layer 200 is made of PVDC material.

[0029] The outer protective layer 300 is attached to the side wall of the heat insulation layer 200. The outer protective layer 300 includes an aluminum foil layer 310 and two cotton cloth layers 320 on both sides of the aluminum foil layer 310, an adhesive layer 330 between the cotton cloth layer 320 and the aluminum foil layer 310. A first protrusion 340 is installed on the inner wall of the cotton cloth layer 320, the first protrusion 340 passes through the adhesive layer 330, a second protrusion 350 is installed on the side wall of the inner cotton cloth layer 320, a slot 210 is opened on the side wall of the heat insulation layer 200, the second protrusion 350 passes through the slot 210 and is connected to the outer wall of the inner membrane 100. Two positioning ridges 360 are symmetrically arranged at the center position of the outer wall of the outer cotton cloth layer 320. The midline of the side wall of the cotton cloth layer 320 is located between the two positioning ridges 360. The second protrusion 350 can increase the contact area between the adhesive and the cotton cloth layer 320 and can limit the heat insulation layer 200 to prevent the heat insulation layer 200 from moving. When folding the outer protective layer 300, folding along between the two positioning ridges 360 can quickly bend and fold the outer protective layer 300 and the inner membrane 100 to conveniently and quickly form a bag-like structure.

[0030] Although the present invention has been described above with reference to the embodiments, various improvements can be made to it and components therein 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 various features in the disclosed embodiments of the present invention can be combined with each other in any way. The exhaustive description of these combinations is not given in this specification only for the sake of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A composite film heat-sealed packaging bag based on an aqueous heat-sealing adhesive, characterized in that, Comprising: An inner membrane (100), heat-sealing films (110) are provided at both the top and bottom of the side wall of the inner membrane (100), adhesive layers (120) are provided on both sides of the inner membrane (100), and nano adhesive strips (130) are provided on the side walls of the adhesive layers (120); A heat insulation layer (200), attached to the side wall of the inner membrane (100); An outer protective layer (300), attached to the side wall of the heat insulation layer (200).

2. The composite film heat-sealing packaging bag based on the water-based hot melt adhesive according to claim 1, characterized in that, The outer protective layer (300) includes an aluminum foil layer (310) and two cotton cloth layers (320) located on both sides of the aluminum foil layer (310), and an adhesive layer (330) between the cotton cloth layer (320) and the aluminum foil layer (310).

3. The composite film heat-sealing packaging bag based on the water-based hot melt adhesive according to claim 2, characterized in that, First protrusions (340) are installed on the inner wall of the cotton cloth layer (320), and the first protrusions (340) penetrate through the adhesive layer (330).

4. The composite film heat-sealing packaging bag based on the aqueous heat-sealing adhesive according to claim 3, characterized in that, Second protrusions (350) are installed on the side wall of the inner cotton cloth layer (320), a slot (210) is provided on the side wall of the heat insulation layer (200), and the second protrusions (350) penetrate through the slot (210) and are connected to the outer wall of the inner membrane (100).

5. The composite film heat-sealing packaging bag based on the aqueous hot-melt adhesive according to claim 4, characterized in that, Two positioning ribs (360) are symmetrically provided at the center position of the outer wall of the outer cotton cloth layer (320), and the center line of the side wall of the cotton cloth layer (320) is located between the two positioning ribs (360).

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