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

Abstract

The invention 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 the upper sealing area is matched with the packaging bag body of the bottle-shaped structure. A lower sealing area is arranged at the bottom of the packaging bag; both the first point-shaped easy-to-tear opening and the second point-shaped easy-to-tear opening can be torn off, 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 linear easy-to-tear 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 to realize the characteristics of easy tear and fragrance retention.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging film bags, in particular to a high-barrier straight-line easy-tear seasoning packaging film bag. Background Art

[0002] Instant noodles are a very popular food, known for their convenience and deliciousness. What makes them delicious mainly depends on the seasoning in the seasoning packet. Instant noodle seasoning packets usually contain a variety of seasonings and ingredients to help enhance the taste and flavor of instant noodles. Through a variety of different formulas and ingredients, instant noodles are given a rich flavor.

[0003] In order to improve the taste of instant noodles, soup packets, sauce packets and other seasoning packets are commonly added to instant foods, but there are great defects in the process of use. First, the traditional tear-off is not easy to open and requires a lot of force to open; second, because too much force is used, these seasonings are liquids, and when opening, it is easy to splash out the liquid in the bag. At the same time, the aroma retention of ordinary materials is biased, and the aroma loss of products with a long shelf life is relatively large.

[0004] To this end, the present invention provides a high-barrier straight-line easy-tear seasoning packaging film bag. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: the high-barrier straight-line easy-tear seasoning packaging film bag described in the present invention includes a packaging bag, the packaging bag is a bottle-shaped structure, a pouring outlet is arranged at the top of the packaging bag, an upper sealing area is arranged at the top of the packaging bag, the upper sealing area is adapted to the packaging bag of the bottle-shaped structure, and a lower sealing area is arranged at the bottom of the packaging bag; 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 pouring outlet is an arc-shaped convex 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 linear tearable PA, a barrier coating, VMPET and a multi-layer co-extruded polyethylene layer, and the multi-layer co-extruded polyethylene layer includes 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 consists of acrylic acid, polyurethane and polyvinyl alcohol.

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

[0012] Furthermore, the second layer of polyethylene consists of linear low-density polyethylene, low-density polyethylene, cyclic olefin copolymer, processing aid, antioxidant and antistatic agent.

[0013] Furthermore, the third layer of polyethylene consists of linear low-density polyethylene, low-density polyethylene, cyclic olefin copolymer, processing aid and antioxidant.

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

[0015] Furthermore, the fifth layer of polyethylene is composed of metallocene polyethylene, linear low-density polyethylene, low-density polyethylene, cyclic olefin copolymer, processing aid, antioxidant, antistatic agent and lubricant.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The high-barrier straight-line tearable seasoning packaging film bag described in the present invention can be torn open through the first dot-shaped tearable opening and the second dot-shaped tearable opening. The packaging film is formed into a bottle-shaped packaging bag by bag making, and the upper sealing area and the packaging bag work together to form a pouring port. The present invention uses straight-line tearable PA, 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 fragrance preservation. The use of straight-line tearable PA in combination with co-extruded PE can ensure that the film still has a good straight-line tearable effect after compounding; the use of barrier coating can improve the barrier properties of VMPET; the use of the first dot-shaped tearable opening and the second dot-shaped tearable opening can make it very convenient to open the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 1 This is a structural diagram of a high-barrier straight-line easy-tear seasoning packaging film bag of the present invention;

[0020] Figure 2 It is a schematic diagram of the material structure of the present invention.

[0021] In the figure: 101, first dot-shaped easy-tear cut; 102, second dot-shaped easy-tear cut;

[0022] 201. packaging bag; 202. pouring outlet; 3. upper sealing area; 4. lower sealing area;

[0023] 5. Straight and easy-to-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 DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] like Figure 1 to Figure 2 As shown, a high-barrier straight-line tearable seasoning packaging film bag according to an embodiment of the present invention includes a packaging bag 201, the packaging bag 201 is a bottle-shaped structure, a pouring port 202 is arranged at the top of the packaging bag 201, an upper sealing area 3 is arranged at the top of the packaging bag 201, the upper sealing area 3 is adapted to the packaging bag 201 of the bottle-shaped structure, and a lower sealing area 4 is arranged at the bottom of the packaging bag 201. The upper sealing area 3 is symmetrically provided with a first dot-shaped tearable opening 101 and a second dot-shaped tearable opening 102. The pouring port 202 is an arc-shaped convex shape. Both sides of the upper sealing area 3 and the lower sealing area 4 are provided with rounded corners.

[0029] Specifically, the packaging bag 201 includes a linear tearable PA5, a barrier coating 6, a VMPET7 and a multi-layer co-extruded polyethylene layer, and the multi-layer co-extruded polyethylene layer includes 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, cycloolefin copolymer, processing aid and silane coupling agent. The second layer of polyethylene 802 is composed of linear low-density polyethylene, low-density polyethylene, cycloolefin copolymer, processing aid, antioxidant and antistatic agent. The third layer of polyethylene 803 is composed of linear low-density polyethylene, low-density polyethylene, cycloolefin copolymer, processing aid and antioxidant. The fourth layer of polyethylene 804 is composed of metallocene polyethylene, linear low-density polyethylene, low-density polyethylene, cycloolefin copolymer, processing aid, antioxidant and antistatic agent. The fifth layer of polyethylene 805 is composed of metallocene polyethylene, linear low-density polyethylene, low-density polyethylene, cyclic olefin copolymer, processing aid, antioxidant, antistatic agent and lubricant.

[0030] During operation, both the first dot-shaped easy-tear opening 101 and the second dot-shaped easy-tear opening 102 can be torn open, and the packaging film is formed into a packaging bag 201 with a bottle-shaped structure through bag making, and at the same time, the upper sealing area 3 and the packaging bag 201 work together to form a pouring port 202. The present invention uses linear easy-tear PA5, barrier coating 6, VMPET7, 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 to achieve the characteristics of easy tearing and fragrance preservation. The use of linear easy-tear PA5 in combination with co-extruded PE can ensure that after compounding, the film still has a good linear easy-tear effect; the use of barrier coating 6 can improve the barrier performance of VMPET7; the use of the first dot-shaped easy-tear opening 101 and the second dot-shaped easy-tear opening 102 can easily open the packaging bag 201.

[0031] Implementation column 1:

[0032] The length of each cutting point of the first dot-shaped easy-tear opening 101 and the second dot-shaped easy-tear opening 102 is 1-1.5 mm. The width of the pouring port 202 is 5-15 mm. The thickness of the linear easy-tear 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 coated on the VMPET7 to form a high barrier VMPET7 layer with a thickness of 12-20 μm. The thickness of the multi-layer co-extruded polyethylene layer is 30-70 μm: the first layer of polyethylene 801 accounts for 20%-30% of the total thickness of the multi-layer co-extruded polyethylene layer, and the first layer of polyethylene 801 is composed of 10%-30% of linear low-density polyethylene, 35%-50% of low-density polyethylene, 10%-30% of cycloolefin copolymer, 0.1%-0.5% of processing aid, and 1%-3% of silane coupling agent; the second layer of polyethylene 802 accounts for 10%-18% of the total thickness of the multi-layer co-extruded polyethylene layer, and the second layer of polyethylene 803 accounts for 10%-18% of the total thickness of the multi-layer co-extruded polyethylene layer. The ethylene 802 layer is composed of 15%-30% linear low-density polyethylene, 20%-30% low-density polyethylene, 10%-30% cycloolefin copolymer, 0.1%-0.5% processing aid, 2.0%-4.0% antioxidant and 2%-6% antistatic agent; the third layer of polyethylene 803 accounts for 12%-20% of the total thickness of the multi-layer co-extruded polyethylene layer. The third layer of polyethylene 803 is composed of 15%-30% linear low-density polyethylene, 20%-50% low-density polyethylene, cycloolefin copolymer and 0.1%-0.5% processing aid. The third layer of polyethylene 803 accounts for 12%-20% of the total thickness of the multi-layer co-extruded polyethylene layer. The fourth layer of polyethylene 804 accounts for 10%-18% of the total thickness of the multi-layer co-extruded polyethylene layer. The fourth layer of polyethylene 804 consists 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 aid, and 2.0%-4.0% antioxidant. and antistatic agent are 2%-6%; the fifth polyethylene 805 layer accounts for 30%-45% of the total thickness of the multi-layer co-extruded polyethylene layer, and the fifth polyethylene 805 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 aid, 2.0%-4.0% antioxidant, 2%-6% antistatic agent and 0.5%-1.5% lubricant.

[0033] The packaging bag 201 in this embodiment has a trouser-type 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 column 2:

[0035] On the basis of Example 1, the barrier coating 6 is changed to 30%-60% acrylic acid, 30%-50% polyurethane, and 15%-40% polyvinyl alcohol. At this time, the trouser tear strength (N) of the packaging bag 201 is 2.4, the oxygen permeability (ml / m2·24h) is 0.6, and the water vapor permeability (g / m2·24h) is 0.7.

[0036] Implementation column three:

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

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

[0039] Through the structure and materials designed in this application, the packaging bag 201 can be torn open more conveniently without using too much force to open the packaging bag 201 filled with liquid. At the same time, the liquid seasoning inside can be packaged for a long time to reduce the loss of fragrance.

[0040] Working principle: Both the first dot-shaped easy-tear opening 101 and the second dot-shaped easy-tear opening 102 can be torn open, and the packaging film is formed into a packaging bag 201 with a bottle-shaped structure through bag making, and at the same time, the upper sealing area 3 and the packaging bag 201 work together to form a pouring port 202. The present invention uses linear easy-tear PA5, barrier coating 6, VMPET7, 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 to achieve the characteristics of easy tearing and fragrance preservation. The use of linear easy-tear PA5 in combination with co-extruded PE can ensure that the film still has a good linear easy-tear effect after compounding; the use of barrier coating 6 can improve the barrier performance of VMPET7; the use of the first dot-shaped easy-tear opening 101 and the second dot-shaped easy-tear opening 102 can easily open the packaging bag 201.

[0041] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, 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 the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

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

2. The high barrier straight-line easy-tear seasoning packaging film bag according to claim 1, characterized in that: The pouring outlet (202) is in the shape of a circular arc convexity.

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) comprises linear easy-tear PA (5), a barrier coating (6), VMPET (7) and a multi-layer co-extruded polyethylene layer, wherein the multi-layer co-extruded polyethylene layer comprises 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).

5. The high barrier straight-line easy-tear seasoning packaging film bag according to claim 4, characterized in that: The barrier coating (6) is composed of acrylic acid, polyurethane and polyvinyl alcohol.

6. The high barrier straight tearable seasoning packaging film bag according to claim 4, characterized in that: The first layer of polyethylene (801) consists of linear low-density polyethylene, low-density polyethylene, cyclic olefin copolymer, processing aid and silane coupling agent.

7. The high barrier straight-line easy-tear seasoning packaging film bag according to claim 4, characterized in that: The second layer of polyethylene (802) consists of linear low-density polyethylene, low-density polyethylene, cyclic olefin copolymer, processing aid, antioxidant and antistatic agent.

8. The high barrier straight-line easy-tear seasoning packaging film bag according to claim 4, characterized in that: The third layer of polyethylene (803) consists of linear low-density polyethylene, low-density polyethylene, cyclic olefin copolymer, processing aid and antioxidant.

9. The high barrier straight-line easy-tear seasoning packaging film bag according to claim 4, characterized in that: The fourth layer of polyethylene (804) is composed of metallocene polyethylene, linear low-density polyethylene, low-density polyethylene, cyclic olefin copolymer, processing aid, antioxidant and antistatic agent.

10. The high barrier straight-line easy-tear seasoning packaging film bag according to claim 4, characterized in that: The fifth layer of polyethylene (805) is composed of metallocene polyethylene, linear low-density polyethylene, low-density polyethylene, cyclic olefin copolymer, processing aid, antioxidant, antistatic agent and lubricant.

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