High-barrier linear easy-to-tear seasoning packaging film bag

Abstract

The utility model belongs to the technical field of packaging film bags, and particularly relates to a high-barrier linear easy-to-tear seasoning packaging film bag which comprises a packaging bag body of a bottle-shaped structure, a pouring opening is formed in the top of the packaging bag body, an upper sealing area is arranged at the top of the packaging bag body, and a lower sealing area is arranged at the bottom of the packaging bag body. The upper sealing area is matched with a packaging bag of a bottle-shaped structure, and a lower sealing area is arranged at the bottom of the packaging bag. The packaging film can be torn off through the first point-shaped easy-to-tear opening and the second point-shaped easy-to-tear opening, the packaging film forms a packaging bag of a bottle-shaped structure through bag making, and meanwhile the upper sealing area and the packaging bag jointly act to form a pouring opening. The straight line easily-torn PA, the barrier coating, the VMPET, the first layer of polyethylene, the second layer of polyethylene, the third layer of polyethylene, the fourth layer of polyethylene and the fifth layer of polyethylene are used for achieving the characteristics of being easy to tear and keeping fragrance.

Description

Technical Field

[0001] This utility model belongs to the field of packaging film and bag technology, specifically a high-barrier, straight-line easy-tear seasoning packaging film and bag. Background Technology

[0002] Instant noodles are a very popular food, known for their convenience and delicious taste, which mainly relies on the seasoning packets. Instant noodle seasoning packets typically contain a variety of seasonings and ingredients to enhance the flavor and texture of the noodles. Through various formulas and ingredients, instant noodles are given a rich variety of flavors.

[0003] To enhance the flavor of instant noodles, seasoning packets such as soup packets and sauce packets are commonly added to convenience foods. However, these methods have significant drawbacks. First, the traditional easy-tear opening is difficult to open, requiring considerable force. Second, because these seasonings are liquid, excessive force can easily cause the liquid inside the packet to splash out when opened. Additionally, the aroma retention of ordinary materials is poor, resulting in significant aroma loss in products with longer shelf lives.

[0004] Therefore, this utility model provides a high-barrier, straight-line, easy-tear seasoning packaging film bag. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The high-barrier straight-line easy-tear seasoning packaging film bag of this utility model includes a packaging bag, the packaging bag has a bottle-shaped structure, the top of the packaging bag is provided with a pouring outlet, the top of the packaging bag is provided with an upper sealing area, the upper sealing area is adapted to the bottle-shaped packaging bag, the bottom of the packaging bag is provided with a lower sealing area; the upper sealing area is symmetrically provided with a first dot-shaped easy-tear opening and a second dot-shaped easy-tear opening.

[0007] Furthermore, the outlet is a rounded, protruding shape.

[0008] Furthermore, both sides of the upper sealing area and the lower sealing area are provided with rounded corners.

[0009] Furthermore, the packaging bag includes a straight-tear easy-tear PA, a barrier coating, VMPET, and a multi-layer co-extruded polyethylene layer, wherein the multi-layer co-extruded polyethylene layer comprises a first layer of polyethylene, a second layer of polyethylene, a third layer of polyethylene, a fourth layer of polyethylene, and a fifth layer of polyethylene.

[0010] Furthermore, the barrier coating is composed of acrylic acid, polyurethane, and polyvinyl alcohol.

[0011] Furthermore, the first layer of polyethylene is composed of linear low-density polyethylene, low-density polyethylene, cyclic olefin copolymer, processing aids, and silane coupling agent.

[0012] Furthermore, the second layer of polyethylene is composed of linear low-density polyethylene, low-density polyethylene, cyclic olefin copolymer, processing aids, antioxidants, and antistatic agents.

[0013] Furthermore, the third layer of polyethylene is composed of linear low-density polyethylene, low-density polyethylene, cyclic olefin copolymer, processing aids, and antioxidants.

[0014] Furthermore, the fourth layer of polyethylene is composed of metallocene polyethylene, linear low-density polyethylene, low-density polyethylene, cyclic olefin copolymer, processing aids, antioxidants, and antistatic agents.

[0015] Furthermore, the fifth layer of polyethylene is composed of metallocene polyethylene, linear low-density polyethylene, low-density polyethylene, cyclic olefin copolymer, processing aids, antioxidants, antistatic agents, and slip agents.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This utility model discloses a high-barrier, straight-line easy-tear seasoning packaging film bag, which can be torn open through both a first and a second dot-shaped easy-tear opening. The packaging film is formed into a bottle-shaped packaging bag through bag making, and the upper sealing area works together with the packaging bag to form a pouring outlet. This utility model uses straight-line easy-tear PA, a barrier coating, VMPET, a first layer of polyethylene, a second layer of polyethylene, a third layer of polyethylene, a fourth layer of polyethylene, and a fifth layer of polyethylene to achieve the characteristics of easy tearing and aroma retention. The use of straight-line easy-tear PA in combination with co-extruded PE ensures that the film still has good straight-line easy-tear effect after lamination; the use of a barrier coating can improve the barrier performance of VMPET; and the use of the first and second dot-shaped easy-tear openings makes it very convenient to open the packaging bag. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a structural diagram of a high-barrier, straight-line, easy-tear seasoning packaging film bag according to this utility model;

[0020] Figure 2 This is a schematic diagram of the material structure of this utility model.

[0021] In the image: 101, first tear-off point; 102, second tear-off point;

[0022] 201. Packaging bag; 202. Outlet; 3. Upper sealing area; 4. Lower sealing area;

[0023] 5. Straight-line easy-tear PA;

[0024] 6. Barrier coating;

[0025] 7. VMPET;

[0026] 801, First layer of polyethylene; 802, Second layer of polyethylene; 803, Third layer of polyethylene; 804, Fourth layer of polyethylene; 805, Fifth layer of polyethylene. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] like Figures 1 to 2 As shown in the embodiment of this utility model, a high-barrier, straight-line easy-tear seasoning packaging film bag includes a packaging bag 201, which has a bottle-shaped structure. The top of the packaging bag 201 has a pouring outlet 202 and an upper sealing area 3 adapted to the bottle-shaped structure of the packaging bag 201. The bottom of the packaging bag 201 has a lower sealing area 4. The upper sealing area 3 has symmetrically arranged first dotted easy-tear openings 101 and second dotted easy-tear openings 102. The pouring outlet 202 is an arc-shaped protrusion. Both sides of the upper sealing area 3 and the lower sealing area 4 have rounded corners.

[0029] Specifically, the packaging bag 201 comprises a straight-tear easy-tear PA5, a barrier coating 6, VMPET 7, and a multi-layer co-extruded polyethylene layer. The multi-layer co-extruded polyethylene layer consists of a first layer of polyethylene 801, a second layer of polyethylene 802, a third layer of polyethylene 803, a fourth layer of polyethylene 804, and a fifth layer of polyethylene 805. The barrier coating 6 is composed of acrylic acid, polyurethane, and polyvinyl alcohol. The first layer of polyethylene 801 is composed of linear low-density polyethylene, low-density polyethylene, cyclic olefin copolymers, processing aids, and a silane coupling agent. The second layer of polyethylene 802 is composed of linear low-density polyethylene, low-density polyethylene, cyclic olefin copolymers, processing aids, antioxidants, and antistatic agents. The third layer of polyethylene 803 is composed of linear low-density polyethylene, low-density polyethylene, cyclic olefin copolymers, processing aids, antioxidants, and antioxidants. The fourth layer of polyethylene 804 is composed of metallocene polyethylene, linear low-density polyethylene, low-density polyethylene, cyclic olefin copolymers, processing aids, antioxidants, and antistatic agents. The fifth layer of polyethylene 805 is composed of metallocene polyethylene, linear low-density polyethylene, low-density polyethylene, cyclic olefin copolymer, processing aids, antioxidants, antistatic agents and slip agents.

[0030] During operation, both the first dotted tear opening 101 and the second dotted tear opening 102 can be torn open. The packaging film is formed into a bottle-shaped packaging bag 201 through bag making. At the same time, the upper sealing area 3 and the packaging bag 201 work together to form the pouring outlet 202. This utility model uses straight-tearable PA5, barrier coating 6, VMPET7, first layer polyethylene 801, second layer polyethylene 802, third layer polyethylene 803, fourth layer polyethylene 804, and fifth layer polyethylene 805 to achieve the characteristics of easy tearing and aroma retention. Using straight-tearable PA5 in combination with co-extruded PE can ensure that the film still has a good straight-tearable effect after lamination; using barrier coating 6 can improve the barrier performance of VMPET7; using the first dotted tear opening 101 and the second dotted tear opening 102 can easily open the packaging bag 201.

[0031] Implementation of List 1:

[0032] The length of each cut point of the first dotted tear strip 101 and the second dotted tear strip 102 is 1-1.5 mm. The width of the pouring nozzle 202 is 5-15 mm. The thickness of the straight tear-type PA is 15-30 μm; the barrier coating 6 contains 15%-40% acrylic acid, 30%-50% polyurethane, and 30%-60% polyvinyl alcohol. The barrier coating 6 is applied onto VMPET7 to form a high-barrier VMPET7 layer with a thickness of 12-20 μm. The thickness of the multilayer co-extruded polyethylene layers is 30-70 μm: the first layer, polyethylene 801, accounts for 20%-30% of the total thickness of the multilayer co-extruded polyethylene layers. This first layer (801) is composed of 10%-30% linear low-density polyethylene, 35%-50% low-density polyethylene, 10%-30% cyclic olefin copolymer, 0.1%-0.5% processing aids, and 1%-3% silane coupling agent. The second layer, polyethylene 802, accounts for 10%-18% of the total thickness of the multilayer co-extruded polyethylene layers. The ethylene 802 layer is composed of 15%-30% linear low-density polyethylene, 20%-30% low-density polyethylene, 10%-30% cyclic olefin copolymer, 0.1%-0.5% processing aids, 2.0%-4.0% antioxidants, and 2%-6% antistatic agents. The third layer, polyethylene 803, accounts for 12%-20% of the total thickness of the multilayer co-extruded polyethylene layers. This third layer is composed of 15%-30% linear low-density polyethylene, 20%-50% low-density polyethylene, and cyclic olefin copolymers. The polymer comprises 10%-30%, processing aids 0.1%-0.5%, and antioxidants 2.0%-4.0%. The fourth layer, polyethylene 804, accounts for 10%-18% of the total thickness of the multilayer co-extruded polyethylene layers. This fourth layer, composed of 30%-40% metallocene polyethylene, 15%-30% linear low-density polyethylene, 20%-30% low-density polyethylene, 10%-30% cyclic olefin copolymer, 0.1%-0.5% processing aids, and 2.0%-4.0% antioxidants. The fifth layer, polyethylene 805, accounts for 30%-45% of the total thickness of the multilayer co-extruded polyethylene layers. This fifth layer is composed of 30%-50% metallocene polyethylene, 25%-35% linear low-density polyethylene, 20%-30% low-density polyethylene, 15%-25% cyclic olefin copolymer, 0.1%-0.5% processing aids, 2.0%-4.0% antioxidants, 2%-6% antistatic agents, and 0.5%-1.5% slip agents.

[0033] In this embodiment, the 201 trouser-type packaging bag has a tear strength (N) of 2.3, an oxygen permeability (ml / m2·24h) of 0.7, and a water vapor permeability (g / m2·24h) of 0.7.

[0034] Implementation List 2:

[0035] Based on Example 1, the barrier coating 6 was modified, specifically to a ratio of 30%-60% acrylic acid, 30%-50% polyurethane, and 15%-40% polyvinyl alcohol. At this point, the tear strength (N) of the 201 trouser-type packaging bag was 2.4, the oxygen permeability (ml / m²·24h) was 0.6, and the water vapor permeability (g / m²·24h) was 0.7.

[0036] Implement List 3:

[0037] Based on Example 1, metallocene polyethylene was added to the first polyethylene 801 layer, the second polyethylene 802 layer, and the third polyethylene 803 layer by 10%-30%. At this time, the tear strength (N) of the 201 trouser type packaging bag was 1.7, the oxygen transmission rate (ml / m2·24h) was 0.9, and the water vapor transmission rate (g / m2·24h) was 0.4.

[0038] The comparative examples of the three embodiments described above are 3.9, 2.5, and 1.1, respectively.

[0039] The structure and materials designed in this application make it easier to tear open the packaging bag 201 without using excessive force. At the same time, it can also preserve the aroma of the liquid seasoning inside for a longer period of time, reducing the loss of aroma.

[0040] Working principle: Both the first dotted tear opening 101 and the second dotted tear opening 102 can be torn open. The packaging film is formed into a bottle-shaped packaging bag 201 through bag making. At the same time, the upper sealing area 3 and the packaging bag 201 work together to form the pouring outlet 202. This utility model uses straight-tearable PA5, barrier coating 6, VMPET7, first layer polyethylene 801, second layer polyethylene 802, third layer polyethylene 803, fourth layer polyethylene 804, and fifth layer polyethylene 805 to achieve the characteristics of easy tearing and aroma retention. Using straight-tearable PA5 in combination with co-extruded PE can ensure that the film still has a good straight-tearable effect after lamination; using barrier coating 6 can improve the barrier performance of VMPET7; using the first dotted tear opening 101 and the second dotted tear opening 102 can easily open the packaging bag 201.

[0041] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., 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 utility model 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, they should not be construed as limiting the scope of protection of this utility model.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-barrier, straight-line, easy-tear seasoning packaging film bag, characterized in that: Includes a packaging bag (201), the packaging bag (201) has a bottle-shaped structure, the top of the packaging bag (201) is provided with a pouring outlet (202), the top of the packaging bag (201) is provided with an upper sealing area (3), the upper sealing area (3) is adapted to the bottle-shaped structure of the packaging bag (201), and the bottom of the packaging bag (201) is provided with a lower sealing area (4); The upper sealing area (3) is symmetrically provided with a first dotted tear opening (101) and a second dotted tear opening (102).

2. The high-barrier, straight-line, easy-tear seasoning packaging film bag according to claim 1, characterized in that: The inverted outlet (202) is a circular arc-shaped protrusion.

3. The high-barrier, straight-line, easy-tear seasoning packaging film bag according to claim 1, characterized in that: Both sides of the upper sealing area (3) and the lower sealing area (4) are provided with rounded corners.

4. The high-barrier, straight-line, easy-tear seasoning packaging film bag according to claim 1, characterized in that: The packaging bag (201) includes a straight-tear PA (5), a barrier coating (6), VMPET (7) and a multi-layer co-extruded polyethylene layer, which is composed of a first layer of polyethylene (801), a second layer of polyethylene (802), a third layer of polyethylene (803), a fourth layer of polyethylene (804) and a fifth layer of polyethylene (805).

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