Linear easy-to-tear packaging bag facilitating fragment collection

Abstract

The utility model provides a linear easy-to-tear packaging bag convenient for fragment collection. The packaging bag is made of a linear easy-to-tear packaging composite film and is sequentially provided with a surface film layer, a first glue layer, a barrier antibacterial layer, a second glue layer and a heat sealing layer from outside to inside. A tearing notch is formed in the edge of one side of a heat sealing part of the packaging bag, a crack arrest part is arranged on the other side of the horizontal position in the tearing direction, and when the packaging bag is torn open in the horizontal direction with the tearing notch as the starting point, unsealing fragments are connected with a packaging bag body through a connecting part on the other side of the crack arrest part and cannot fall off. The linear easy-to-tear packaging bag convenient for fragment collection has good mechanical property, barrier property and excellent linear easy-to-tear property, is convenient for collection of packaging bag fragments generated after the packaging bag is torn, can be widely applied to the field of flexible packages of foods, medicines, daily necessities and the like, and has a very wide application prospect.

Description

Technical Field

[0001] The utility model relates to the field of soft packaging materials, in particular to a straight-line easy-tear packaging bag which is convenient for collecting debris. Background Art

[0002] In recent years, with the upgrading of consumption, people have higher and higher requirements for packaging films. In addition to ensuring that products are not damaged or deteriorated during storage and transportation, packaging bags are also required to have good linear tearability, so that consumers can quickly open them when using them, and prevent the contents from spilling, especially when the contents contain liquid items, such as sauce packaging bags, facial mask packaging bags, etc.

[0003] Many packaging bags, although they have tearing cuts, still require a lot of force to tear open, and the bag opening will randomly split after tearing, which can easily cause the contents to spill. At present, the linear tear film can solve this problem well. While ensuring the easy tearing of the packaging bag, it also splits along the horizontal line to ensure the integrity of the contents. However, due to the linear tearability of the packaging bag, the opened fragments can easily fall off the bag body, and the remaining opened fragments need to be picked up and collected again or may be discarded at will.

[0004] In summary, it is necessary to provide a packaging bag that has the advantages of linear tearability, beautiful opening, excellent content preservation, and better and more convenient collection of opening fragments without substantially increasing the cost. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a straight-line tearable packaging bag that is convenient for collecting debris. The utility model has good mechanical properties, barrier properties and excellent straight-line tearability, and is convenient for collecting the packaging bag fragments generated after tearing. The utility model can be widely used in the field of soft packaging of food, medicine and daily necessities, and has a very broad application prospect.

[0006] The utility model adopts the following technical scheme to solve the technical problems: a straight tearable packaging bag which is convenient for collecting debris is provided, wherein the packaging bag is sequentially provided with a surface film layer, a first glue layer, a barrier antibacterial layer, a second glue layer and a heat-sealing layer from outside to inside; the surface film layer is one of a straight tearable biaxially oriented polyamide film, a straight tearable biaxially oriented polyethylene film or a straight tearable biaxially oriented polypropylene film; the barrier antibacterial layer is an antibacterial barrier coating layer or an aluminum foil layer; the heat-sealing layer is one of CPP, PE, a heat-sealable biaxially oriented polyamide film or a polyethylene film or a polypropylene film with straight tearability; wherein the tearing directions of the surface film layer and the heat-sealing layer are consistent; the packaging bag is provided with a tearing incision at the edge of one side of the heat-sealing part, and a crack-stopping part is provided on the other side, wherein the crack-stopping part is a hole or a crack which is not parallel to the tearing direction, and the crack-stopping part is located downstream in the tearing direction where the tearing incision is located; the crack-stopping part is provided with a connecting part between the side away from the tearing incision and the main body of the packaging bag.

[0007] In the utility model, the tearing incision is a V-shaped incision, a circular incision, or a U-shaped incision.

[0008] In the utility model, the crack-stopping portion is a circular, elliptical or triangular hole, or a crack perpendicular to the tearing direction.

[0009] In the utility model, the tear cut, the crack stop portion and the connecting portion are located at the heat-sealing portion, and the tear straight line between the tear cut and the crack stop portion is located at the non-heat-sealing portion.

[0010] In the utility model, the thickness of the surface film layer is 10-30 μm, the thickness of the first glue layer and the second glue layer is 1-3 μm, the thickness of the barrier antibacterial layer is 1-3 μm, and the thickness of the heat sealing layer is 30-85 μm.

[0011] Based on the above, compared with the prior art, the utility model provides a straight-line tearable packaging bag that is convenient for collecting debris. The packaging bag is made of a straight-line tearable packaging composite film, and one or more of a straight-line tearable biaxially oriented polyamide film, a straight-line tearable biaxially oriented polyethylene film or a straight-line tearable biaxially oriented polypropylene film is used as the base film. The packaging bag can be made straight-line tearable by directly compounding a straight-line tearable biaxially oriented film, so that the tearing process is easy and simple, and the tearing is beautiful, and the contents will not leak; and a crack-stopping portion in the form of a hole or a vertical crack is provided at the heat-sealed portion, so that the tearing stroke ends at the crack-stopping portion, and the unsealed fragments can be connected to the bag body by using the rear connecting portion, and will not fall off, so that the unsealed fragments can be conveniently and easily collected without increasing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 A structural diagram of a straight-line easy-tear packaging bag that is convenient for collecting debris provided by the utility model.

[0014] Figure 2 The utility model provides a structural diagram of a straight-line easy-tear packaging bag for facilitating debris collection after being torn open in a horizontal direction.

[0015] Among them, 1 is the tearing incision, 2 is the tearing stop part, 3 is the heat sealing part, 4 is the horizontal tearing line, 5 is the unsealed fragment, and 6 is the original position of the unsealed fragment. DETAILED DESCRIPTION

[0016] It should be noted that the term "inside" refers to the side in contact with the package contents, and the term "outside" refers to the side in contact with the external environment. The remaining components in the following embodiments, unless otherwise specified, can be purchased from the market or prepared by existing technologies.

[0017] Example

[0018] A straight tearable packaging bag for easy debris collection is made of a straight tearable packaging composite film, which is sequentially provided with a surface film layer, a first glue layer, a barrier antibacterial layer, a second glue layer, and a heat sealing layer from the outside to the inside; wherein the tearing directions of the surface film layer and the heat sealing layer are consistent.

[0019] The packaging bag is provided with a tear cut 1 on one side edge of the heat-sealed portion 3, and a tear stop portion is provided on the other side. The tear cut 1 can be set to various shapes such as a V-shaped cut, a circular cut, a U-shaped cut, etc.; and the size of the tear stop portion 2 is limited by the heat-sealed area, and can be set to a circular, elliptical or triangular hole or a vertical crack; the tear stop portion 2 is located on the opposite side of the tear cut 1 and is at the same horizontal position as the tear cut. The upper part torn along the horizontal tear line 4 between the tear cut 1 and the tear stop portion 2 is the unsealed fragment 5.

[0020] In this embodiment, a portion of the horizontal tear line between the tear cut 1 and the tear stop portion 2 is not adhered and is in a non-heat-sealed area, making it convenient to take out the contents.

[0021] When the packaging bag is opened along the horizontal tear line 4 with the tear cut 1 as the starting point and the tear stop part 2 as the end point, the opened fragments 5 are connected to the packaging bag body through the untorn part on the other side of the tear stop part 2 (i.e. the connecting part), and the opened fragments 5 are constrained by the connecting part and will not fall off.

[0022] The packaging bag of this embodiment is made of a linear tearable packaging composite film, the thickness of the surface film layer is 10 to 30 μm, and one or more of a linear tearable biaxially oriented polyamide film, a linear tearable biaxially oriented polyethylene film or a linear tearable biaxially oriented polypropylene film is used as the base film; the barrier antibacterial layer is an antibacterial barrier coating layer or an aluminum foil layer, and the thickness is 1 to 3 μm; the thickness of the heat-sealing layer is 30 to 85 μm, and it is one of CPP, PE, a heat-sealable biaxially oriented polyamide film, or a polyethylene film or polypropylene film with linear tearability; wherein the tearing directions of the surface film layer and the heat-sealing layer are consistent. This packaging bag has good mechanical properties, barrier properties and excellent linear tearability, and is convenient for collecting the packaging bag fragments produced after tearing, and can be widely used in the field of soft packaging such as food, medicine and daily necessities, and has a very broad application prospect.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not affect the essence of the corresponding technical solution beyond the scope of the technical solution of the embodiments of the utility model.

Claims

1. A straight tearable packaging bag for easy debris collection, characterized in that: The packaging bag is sequentially provided with a surface film layer, a first glue layer, a barrier antibacterial layer, a second glue layer, and a heat-sealing layer from the outside to the inside; the surface film layer is one of a linear and easy-tear biaxially stretched polyamide film, a linear and easy-tear biaxially stretched polyethylene film, or a linear and easy-tear biaxially stretched polypropylene film; the barrier antibacterial layer is an antibacterial barrier coating layer or an aluminum foil layer; the heat-sealing layer is one of CPP, PE, a heat-sealable biaxially stretched polyamide film, or a polyethylene film or a polypropylene film with linear tearability; wherein the tearing directions of the surface film layer and the heat-sealing layer are consistent; the packaging bag is provided with a tearing incision at the edge of one side of the heat-sealing part, and a crack-stopping part is provided on the other side, the crack-stopping part is a hole or a crack that is not parallel to the tearing direction, the crack-stopping part is located downstream of the tearing direction where the tearing incision is located, and the tearing line between the tearing incision and the crack-stopping part is located at a non-heat-sealing part; the crack-stopping part is provided with a connecting part between the side away from the tearing incision and the main body of the packaging bag.

2. A straight tearable packaging bag for facilitating debris collection according to claim 1, characterized in that: The tearing incision is a V-shaped incision, a circular incision, or a U-shaped incision.

3. A straight tearable packaging bag for facilitating debris collection according to claim 1, characterized in that: The hole of the crack-stopping portion is circular, elliptical or triangular.

4. A straight tearable packaging bag for facilitating debris collection according to claim 1, characterized in that: The crack stopping portion is a crack perpendicular to the tearing direction.

5. A straight tearable packaging bag for facilitating debris collection according to claim 1, characterized in that: The connecting portion is located at the heat sealing position.

6. A straight tearable packaging bag for facilitating debris collection according to claim 1, characterized in that: The thickness of the surface film layer is 10 to 30 μm.

7. A straight tearable packaging bag for facilitating debris collection according to claim 1, characterized in that: The thickness of the first glue layer and the second glue layer is 1-3 μm.

8. The linear tearable packaging bag for facilitating debris collection according to claim 1, characterized in that: The thickness of the antibacterial barrier layer is 1 to 3 μm.

9. The linear tearable packaging bag for facilitating debris collection according to claim 1, characterized in that: The thickness of the heat sealing layer is 30-85 μm.

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