Eight-edge-sealed side-edge handbag and manufacturing process thereof

Abstract

The invention relates to the technical field of packaging bags, and particularly discloses an eight-edge-sealed side-edge handle bag and a manufacturing process of the eight-edge-sealed side-edge handle bag. The invention discloses an eight-edge-sealed side-edge handle bag which comprises a bag body and handle side edges, the bag body comprises a printing base film layer, a printing ink layer, a fifth adhesive layer, a middle layer, a sixth adhesive layer, a blocking layer, a seventh adhesive layer and a heat sealing layer which are sequentially arranged. The handle side edge comprises a high-strength handle layer, a first adhesive layer, a printing ink layer, a printing base film layer, a second adhesive layer, a middle layer, a third adhesive layer, a blocking layer, a fourth adhesive layer and a heat sealing layer which are sequentially arranged. A positioning release layer is arranged in the second adhesive layer, and the positioning release layer is connected with the printing base film layer. According to the packaging bag, the lifting handle is arranged on the side edge, the texture is soft, heavy objects are not held by hands and not prone to falling off, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of packaging bags, and in particular to an eight-side sealed side handle bag and a manufacturing process thereof. Background Art

[0002] Currently, the eight-side sealed packaging on the market usually adopts two types: one with a handle on the top of the opening or without a handle. Although the handle-free design may simplify production and reduce costs, it has many disadvantages, especially in the application scenario of pet food, there are problems such as inconvenience in carrying and poor user experience; the method of adding a handle on the top of the opening, although it can bring many conveniences, is not perfect. It will increase costs, take up space, affect the overall stability of the packaging, and have limitations in appearance design. In addition, it will feel uncomfortable when lifting heavy objects. Summary of the invention

[0003] In order to improve the portability of a packaging bag, the present application provides an eight-side sealed side handle bag and a manufacturing process thereof.

[0004] In the first aspect, the present application provides an eight-side sealed side handle bag, which adopts the following technical solution: A bag with eight-side sealed side handles, comprising a bag body and handle sides; the bag body comprises a printed base film layer, a printed ink layer, a fifth adhesive layer, an intermediate layer, a sixth adhesive layer, a barrier layer, a seventh adhesive layer, and a heat-sealing layer arranged in sequence; the handle sides comprise a high-strength handle layer, a first adhesive layer, a printed ink layer, a printed base film layer, a second adhesive layer, an intermediate layer, a third adhesive layer, a barrier layer, a fourth adhesive layer, and a heat-sealing layer arranged in sequence; a positioning release layer is arranged in the second adhesive layer, and the positioning release layer is connected to the printed base film layer.

[0005] By adopting the above technical solution, a handle is provided on the side of the packaging bag. When it is needed to lift, the handle is pulled open by using the positioning release layer. The high-strength handle layer, the first adhesive layer, the printing ink layer, and the printed base film layer form a handle with a soft texture. It is convenient and quick to lift heavy objects without feeling uncomfortable in the hands and not easy to fall off.

[0006] In a specific possible implementation manner, the high-strength handle layer is a PET film, a PA film, or a composite film composed of the two; and the thickness of the high-strength handle layer is 25-60 microns.

[0007] By adopting the above technical solution, the high-strength handle layer made of PET film and PA film can not only lift heavy objects, but also has a good hand feel without being uncomfortable.

[0008] In a specific implementation manner, the raw materials of the first adhesive layer, the second adhesive layer, the third adhesive layer, the fourth adhesive layer, the fifth adhesive layer, the sixth adhesive layer, and the seventh adhesive layer are all polyurethane adhesives.

[0009] In a specific implementation manner, the printing base film layer is one of a PET film and a PA film.

[0010] In a specific embodiment, the raw material of the positioning release layer includes an organic silicone release agent.

[0011] By adopting the above technical solution, the silicone release agent not only has an excellent release effect, but also has certain temperature resistance and compatibility.

[0012] In a specific embodiment, the intermediate layer is a PET film or a PA film.

[0013] In a specific implementation manner, the barrier layer is one of aluminum foil, aluminum-plated film, and aluminum oxide-plated film.

[0014] In a specific embodiment, the raw material of the heat-sealing layer includes heat-sealing PE.

[0015] In the second aspect, the present application provides a manufacturing process for an eight-side sealed side handle bag, which adopts the following technical solution: A manufacturing process of an eight-side sealed side handle bag comprises the following steps: Printing: First, a layer of ink is printed on one side of the printing base film layer to form a printing ink layer; then, a release agent is applied to a part of the other side of the printing base film layer to form a positioning release layer; Composite high-strength handle layer: composite the high-strength handle layer onto the printed ink layer using an adhesive, the adhesive forms a first adhesive layer, and obtains a handle composite film; Die-cutting: The handle composite film is subjected to high temperature aging, and then a positioning die-cutting process is performed, and die-cutting processes such as cutting and opening windows are performed at designated positions to make it have a handle function, thereby obtaining a semi-finished composite film A; Composite middle layer: on the side wall of the printed base film layer with the positioning release layer, the upper middle layer is composited with an adhesive, and the adhesive forms a second adhesive layer to obtain a semi-finished composite film B; Composite barrier layer: on the middle layer of the semi-finished composite film B, a barrier layer is composited by using an adhesive, and the adhesive forms a third adhesive layer to obtain a semi-finished composite film C; Composite heat-sealing layer: On the barrier layer of the semi-finished composite film C, a heat-sealing layer is composited with an adhesive to form a fourth adhesive layer to obtain a handle side edge; Bag making: The handle side is first subjected to high temperature aging, and then the bag body is made into a bag by a bag making machine to obtain an eight-side sealed side handle bag.

[0016] By adopting the above technical scheme, ink is first printed on one side of the printed base film layer, and a release agent is coated on the other side. Then, a high-strength handle layer is compounded on the printed ink layer, high-temperature cured, and die-cut to obtain a semi-finished composite film A. Then, an intermediate layer, a barrier layer, and a heat-sealing layer are compounded in sequence to obtain a handle side edge. Finally, the handle side edge is made through a bag making machine together with the bag body to obtain an eight-side sealed side handle bag.

[0017] In a specific embodiment, the high temperature aging temperature is 40-45°C and the time is 46-50 hours.

[0018] By adopting the above technical solution, the aging temperature and time are further limited, thereby improving the performance of the manufactured handle bag.

[0019] In summary, the present application includes at least one of the following beneficial technical effects: 1. In the present application, a handle is provided on the side of the packaging bag. When it is necessary to lift, the handle is pulled open by using the positioning release layer. The high-strength handle layer, the first adhesive layer, the printing ink layer, and the printed base film layer form a handle with a soft texture. It is convenient and quick to lift heavy objects without getting in the way and not easy to fall off. 2. The high-strength handle layer made of PET film and PA film in this application can not only lift heavy objects, but also has a good hand feel and is not uncomfortable; 3. The method in the present application is to first print ink on one side of the printed base film layer and apply a release agent on the other side, then composite a high-strength handle layer on the printed ink layer, high-temperature mature, and die-cut to obtain a semi-finished composite film A, and then composite an intermediate layer, a barrier layer, and a heat-sealing layer in sequence to obtain a handle side, and finally make a bag with the bag body through a bag making machine to obtain an eight-side sealed side handle bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the handle bag in Example 1 of the present application.

[0021] Figure 2 It is a cross-sectional schematic diagram used to illustrate the bag body in Example 1 of this application.

[0022] Figure 3 It is a cross-sectional schematic diagram used to illustrate the side edge of the handle in Example 1 of the present application.

[0023] Figure 4 It is a cross-sectional schematic diagram used to illustrate the side edge of the handle in Example 2 of the present application.

[0024] Figure 5It is a cross-sectional schematic diagram used to illustrate the side edge of the handle in Example 3 of the present application.

[0025] Explanation of the accompanying drawings: 1. Bag body; 11. Printed base film layer; 12. Printed ink layer; 13. Fifth adhesive layer; 14. Intermediate layer; 15. Sixth adhesive layer; 16. Barrier layer; 17. Seventh adhesive layer; 18. Heat sealing layer; 2. Handle side; 21. High-strength handle layer; 22. First adhesive layer; 23. Second adhesive layer; 231. Positioning release layer; 24. Third adhesive layer; 25. Fourth adhesive layer. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-5 This application is described in further detail.

[0027] Example 1 Embodiment 1 discloses an eight-side sealed side handle bag.

[0028] Reference Figure 1 and Figure 2 A bag with eight-side sealed side handles comprises a bag body 1 and a handle side 2 connected to the bag body 1; the bag body 1 comprises a printed base film layer 11, a printed ink layer 12, a fifth adhesive layer 13, an intermediate layer 14, a sixth adhesive layer 15, a barrier layer 16, a seventh adhesive layer 17, and a heat sealing layer 18 which are arranged in sequence.

[0029] Reference Figure 3 The handle side 2 includes a high-strength handle layer 21, a first adhesive layer 22, a printed ink layer 12, a printed base film layer 11, a second adhesive layer 23, an intermediate layer 14, a third adhesive layer 24, a barrier layer 16, a fourth adhesive layer 25, and a heat-sealing layer 18 which are arranged in sequence; a positioning release layer 231 is provided in the second adhesive layer 23, and the positioning release layer 231 is connected to the printed base film layer 11; the high-strength handle layer 21 is a PET film with a thickness of 25 microns; the printed base film layer 11 is a PET film; the intermediate layer 14 is a PET film; the barrier layer 16 can be one of aluminum foil, aluminized film, and aluminum oxide coated film, and in this embodiment it is aluminum foil; the heat-sealing layer 18 is heat-sealing PE.

[0030] The implementation principle of Example 1 is: before normal use, the handle is pulled apart by using the positioning release layer 231, and the high-strength handle layer 21, the first adhesive layer 22, the printed ink layer 12, and the printed base film layer 11 form a handle with a soft texture, which is convenient and quick to lift heavy objects without feeling uncomfortable or falling off.

[0031] Embodiment 1 also discloses a manufacturing process of an eight-side sealed side handle bag.

[0032] A manufacturing process of an eight-side sealed side handle bag comprises the following steps: Printing: A printing machine is used to first print a layer of ink on one side of the printing base film layer 11 to form a printing ink layer 12; then a release agent is applied to a part of the other side of the printing base film layer 11 to form a positioning release layer 231; Composite high-strength handle layer 21: The high-strength handle layer 21 is composited onto the printing ink layer 12 using a polyurethane adhesive by a dry composite process, and the polyurethane adhesive forms a first adhesive layer 22 to obtain a composite handle film; Die-cutting: The handle composite film is aged at 42.5°C for 48 hours, and then the positioning die-cutting process is performed, and die-cutting treatments such as cutting and opening windows are performed at the designated positions to make it have a handle function, thereby obtaining a semi-finished composite film A; Composite intermediate layer 14: On the side wall of the printed base film layer 11 with the positioning release layer 231, the intermediate layer 14 is composited with a polyurethane adhesive using a dry composite process, the polyurethane adhesive forms a second adhesive layer 23, and the positioning release layer 231 is located in the second adhesive layer 23, to obtain a semi-finished composite film B; Composite barrier layer 16: On the middle layer 14 of the semi-finished composite film B, the upper barrier layer 16 is composited with a polyurethane adhesive by a dry composite process, and the polyurethane adhesive forms a third adhesive layer 24 to obtain a semi-finished composite film C; Composite heat-sealing layer 18: On the barrier layer 16 of the semi-finished composite film C, a heat-sealing layer 18 is composited with a polyurethane adhesive using a dry composite process, and the polyurethane adhesive forms a fourth adhesive layer 25 to obtain a handle side 2; Preparation of bag body 1: firstly, a layer of ink is printed on one side of printing base film layer 11 by using a printing machine to form printing ink layer 12; then, on the printing ink layer 12, an intermediate layer 14 is compounded by using polyurethane adhesive by using dry compounding process, and the polyurethane adhesive forms a fifth adhesive layer 13; then, on the intermediate layer 14, a barrier layer 16 is compounded by using polyurethane adhesive by using dry compounding process, and the polyurethane adhesive forms a sixth adhesive layer 15; finally, on the barrier layer 16, a heat sealing layer 18 is compounded by using polyurethane adhesive by using dry compounding process, and the polyurethane adhesive forms a seventh adhesive layer 17, so as to obtain bag body 1; Bag making: The handle side 2 is first aged at 42.5°C for 48 hours, and then the handle side 2 and the bag body 1 are made into a bag by a bag making machine to obtain an eight-side sealed side handle bag.

[0033] Example 2 The difference between Example 2 and Example 1 is that, referring to Figure 1 and Figure 4, an eight-side sealed side handle bag, comprising a bag body 1 and a handle side 2 connected to the bag body 1; the bag body 1 comprises a printed base film layer 11, a printed ink layer 12, a fifth adhesive layer 13, an intermediate layer 14, a sixth adhesive layer 15, a barrier layer 16, a seventh adhesive layer 17, and a heat-sealing layer 18 arranged in sequence; the handle side 2 comprises a high-strength handle layer 21, a first adhesive layer 22, a printed ink layer 12, a printed base film layer 11, a second adhesive layer 23, an intermediate layer 14, a third adhesive layer 15, a barrier layer 16, a seventh adhesive layer 17, and a heat-sealing layer 18 arranged in sequence The invention comprises the following steps: an adhesive layer 24, a barrier layer 16, a fourth adhesive layer 25, and a heat-sealing layer 18; a positioning release layer 231 is provided in the second adhesive layer 23, and the positioning release layer 231 is connected to the printed base film layer 11; the high-strength handle layer 21 is a PA film with a thickness of 25 microns; the printed base film layer 11 is a PA film; the middle layer 14 is a PA film; the barrier layer 16 can be one of aluminum foil, aluminized film, and alumina-coated film, and in this embodiment it is aluminum foil; the heat-sealing layer 18 is a heat-sealing PE; the remaining steps are consistent with those in Example 1.

[0034] Example 3 The difference between Example 3 and Example 1 is that, referring to Figure 1 and Figure 5 , an eight-side sealed side handle bag, comprising a bag body 1 and a handle side 2 connected to the bag body 1; the bag body 1 comprises a printed base film layer 11, a printed ink layer 12, a fifth adhesive layer 13, an intermediate layer 14, a sixth adhesive layer 15, a barrier layer 16, a seventh adhesive layer 17, and a heat-sealing layer 18 arranged in sequence; the handle side 2 comprises a high-strength handle layer 21, a first adhesive layer 22, a printed ink layer 12, a printed base film layer 11, a second adhesive layer 23, an intermediate layer 14, a third adhesive layer 2 4. Barrier layer 16, fourth adhesive layer 25, heat sealing layer 18; a positioning release layer 231 is provided in the second adhesive layer 23, and the positioning release layer 231 is connected to the printed base film layer 11; the high-strength handle layer 21 is a PET / PA composite film with a thickness of 60 microns; the printed base film layer 11 is a PA film; the middle layer 14 is a PA film; the barrier layer 16 can be one of aluminum foil, aluminized film, and aluminum oxide coated film, and in this embodiment it is aluminum foil; the heat sealing layer 18 is heat-sealing PE; the remaining steps are consistent with Example 1.

[0035] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. An eight-side sealed side handle bag, characterized by: The bag comprises a bag body (1) and a handle side (2); the bag body (1) comprises a printed base film layer (11), a printed ink layer (12), a fifth adhesive layer (13), an intermediate layer (14), a sixth adhesive layer (15), a barrier layer (16), a seventh adhesive layer (17), and a heat-sealing layer (18) arranged in sequence; the handle side (2) comprises a high-strength handle layer (21), a first adhesive layer (22), a printed ink layer (12), a printed base film layer (11), a second adhesive layer (23), an intermediate layer (14), a third adhesive layer (24), a barrier layer (16), a fourth adhesive layer (25), and a heat-sealing layer (18) arranged in sequence; a positioning release layer (231) is arranged in the second adhesive layer (23), and the positioning release layer (231) is connected to the printed base film layer (11).

2. The eight-side sealed side handle bag according to claim 1, characterized in that: The high-strength handle layer (21) is a PET film, a PA film, or a composite film composed of the two; and the thickness of the high-strength handle layer (21) is 25-60 microns.

3. The eight-side sealed side handle bag according to claim 1, characterized in that: The raw materials of the first adhesive layer (22), the second adhesive layer (23), the third adhesive layer (24), the fourth adhesive layer (25), the fifth adhesive layer (13), the sixth adhesive layer (15), and the seventh adhesive layer (17) are all polyurethane adhesives.

4. The eight-side sealed side handle bag according to claim 1, characterized in that: The printing base film layer (11) is one of a PET film and a PA film.

5. The eight-side sealed side handle bag according to claim 1, characterized in that: The raw material of the positioning release layer (231) includes an organic silicon release agent.

6. The eight-side sealed side handle bag according to claim 1, characterized in that: The intermediate layer (14) is one of a PET film and a PA film.

7. The eight-side sealed side handle bag according to claim 1, characterized in that: The barrier layer (16) is one of aluminum foil, aluminum-plated film, and aluminum oxide-plated film.

8. The eight-side sealed side handle bag according to claim 1, characterized in that: The raw material of the heat-sealing layer (18) includes heat-sealing PE.

9. A process for manufacturing an eight-side sealed side handle bag according to any one of claims 1 to 8, characterized in that: The following steps are involved: Printing: firstly, a layer of ink is printed on one side of the printing base film layer (11) to form a printing ink layer (12); then, a release agent is coated on a part of the other side of the printing base film layer (11) to form a positioning release layer (231); Composite high-strength handle layer (21): composite the high-strength handle layer (21) onto the printing ink layer (12) using an adhesive, the adhesive forming a first adhesive layer (22), and obtaining a composite handle film; Die-cutting: The handle composite film is subjected to high temperature aging, and then a positioning die-cutting process is performed, and die-cutting processes such as cutting and opening windows are performed at designated positions to make it have a handle function, thereby obtaining a semi-finished composite film A; Composite intermediate layer (14): on the side wall of the printed base film layer (11) with the positioning release layer (231), the upper intermediate layer (14) is composited with an adhesive, and the adhesive forms a second adhesive layer (23), thereby obtaining a semi-finished composite film B; Composite barrier layer (16): on the middle layer (14) of the semi-finished composite film B, a barrier layer (16) is composited with an adhesive, the adhesive forms a third adhesive layer (24), and a semi-finished composite film C is obtained; Composite heat-sealing layer (18): on the barrier layer (16) of the semi-finished composite film C, a heat-sealing layer (18) is composited with an adhesive, the adhesive forms a fourth adhesive layer (25), and a handle side edge (2) is obtained; Bag making: The handle side (2) is first subjected to high temperature aging, and then is made into a bag together with the bag body (1) by a bag making machine to obtain an eight-side sealed side handle bag.

10. The manufacturing process of the eight-side sealed side handle bag according to claim 9, characterized in that: The high temperature aging temperature is 40-45°C and the time is 46-50h.

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