Smell-blocking packing material
By setting an aluminum foil layer and a composite aluminum PE layer in the food aluminum foil packaging to block the odor of the printing ink and adhesive layer, the problem of complaints about aluminum foil packaging due to odor is solved, and effective odor blocking and reducing the effect of odor generation is achieved.
Patent Information
- Application Number
- CN202421671740.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-15
AI Technical Summary
Food aluminum foil packaging will be complained about the odor of the contents during the product. The odor mainly comes from printing ink and composite glue. As a metal material, aluminum foil is different from polymer materials in flexible packaging, so it is difficult to avoid the use of glue.
By providing an aluminum foil layer, the odor generated by the ink of the printing layer and the adhesive layer used for composite with the aluminum foil layer is blocked on one side of the aluminum foil layer, and the composite glue is avoided by hot pressing the composite aluminum PE layer and the aluminum foil layer, thereby reducing the generation of odor.
Effectively block odors, reduce the generation of odors, and improve the quality of packaging and user experience.
Smart Images
Figure CN223030547U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of packaging materials, in particular to an odor-barrier packaging material. Background Art
[0002] With the improvement of people's living standards, the pursuit of food quality is getting higher and higher, and the corresponding demand for high-barrier flexible packaging is increasing continuously. Food aluminum foil packaging is widely used in the fields of tea bags, milk cartons, seasoning packets, toothpaste, and medicine packaging. Aluminum foil is a classic high-barrier material, which can not only improve the product texture but also effectively ensure the product quality. Its main characteristics include oxygen and moisture barrier, impact resistance, high strength, high temperature resistance, light shielding, and odor barrier. However, food aluminum foil packaging products are often complained about due to the odor of the contents. The main sources of odor are printing ink and composite glue. Since aluminum foil, as a metal material, belongs to two different material categories from the polymer materials in flexible packaging, glue is inevitably required for the lamination of aluminum foil products.
[0003] Based on the above situation, the utility model proposes an odor-barrier packaging material, which can effectively solve the above problems. Summary of the Utility Model
[0004] The purpose of the utility model is to provide an odor-barrier packaging material. An odor-barrier packaging material provided by the utility model blocks the odor generated by the ink in the printing layer and the adhesive layer used for laminating the printing layer and the aluminum foil layer on one side of the aluminum foil layer through the setting of the aluminum foil layer. Moreover, the other side of the aluminum foil layer is thermocompression laminated with a PE-aluminum layer without using composite glue, thus greatly reducing the generation of odor and achieving the effect of odor barrier.
[0005] The utility model is realized through the following technical solutions:
[0006] An odor-barrier packaging material includes a PET layer, a printing layer is arranged inside the PET layer, the printing layer is laminated and connected with an aluminum foil layer through an adhesive layer, and the aluminum foil layer is thermocompression laminated with a PE-aluminum layer.
[0007] According to the above technical solution, as a further preferred technical solution of the above technical solution, the thickness of the PET layer is 12 - 30 um, and both sides of the PET layer are treated by corona, and the corona value is 38 - 48 dynes.
[0008] According to the above technical solution, as a further preferred technical solution of the above technical solution, the adhesive layer is a solvent-free glue.
[0009] According to the above technical solution, as a further preferred technical solution of the above technical solution, the thickness of the aluminum foil layer is 7 - 20 um.
[0010] According to the above technical solution, as a further preferred technical solution of the above technical solution, the thickness of the aluminized PE layer is 20-60 um, and the non-aluminized surface of the aluminized PE layer is thermocompression bonded to the aluminum foil layer.
[0011] According to the above technical solution, as a further preferred technical solution of the above technical solution, the aluminized PE layer includes layers A, B, C, D, E, F, G, H, and I sequentially laminated and blow-molded from the surface layer to the inner layer, wherein layers A, B, C, D, E, F, G, and H are all made of a first composite material, and layer I is made of a second composite material.
[0012] Compared with the prior art, the present utility model has the following advantages and beneficial effects:
[0013] A smell-blocking packaging material provided by the present utility model blocks the peculiar smell generated by the ink of the printing layer and the adhesive layer used for laminating the printing layer and the aluminum foil layer on one side of the aluminum foil layer through the setting of the aluminum foil layer, and the other side of the aluminum foil layer is thermocompression bonded with the aluminized PE layer without using composite glue, thereby greatly reducing the generation of peculiar smell and achieving the effect of blocking smell. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model.
[0015] Figure 2 It is a schematic diagram of the structure of the aluminized PE layer of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0016] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the preferred implementation solutions of the present utility model will be described below in conjunction with specific embodiments. However, it should be understood that the drawings are only for illustrative purposes and cannot be construed as a limitation of this patent; for better illustrating this embodiment, some components in the drawings will be omitted, enlarged or reduced, and do not represent the actual size of the product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as a limitation of this patent.
[0017] A smell-blocking packaging material includes a PET layer 1, a printing layer 2 is provided inside the PET layer 1, the printing layer 2 is laminated and connected to an aluminum foil layer 4 through an adhesive layer 3, and the aluminum foil layer 4 is thermocompression bonded to an aluminized PE layer 5.
[0018] In the present utility model, an aluminum foil layer 4 is provided to block the peculiar smell generated by the ink of the printing layer 2 and the adhesive layer 3 used for laminating the printing layer 2 and the aluminum foil layer 4 on one side of the aluminum foil layer 4. Moreover, the other side of the aluminum foil layer 4 is hot-pressed and laminated with a laminated aluminum PE layer 5 without using composite glue, thereby greatly reducing the generation of peculiar smell and achieving the effect of odor barrier.
[0019] Further, in another embodiment, the thickness of the PET layer 1 is 12 - 30 um, and both sides of the PET layer 1 are treated by corona, with the corona value being 38 - 48 dynes.
[0020] Further, in another embodiment, the adhesive layer 3 is a solvent-free glue.
[0021] Further, in another embodiment, the thickness of the aluminum foil layer 4 is 7 - 20 um.
[0022] Further, in another embodiment, the thickness of the laminated aluminum PE layer 5 is 20 - 60 um, and the non-laminated side of the laminated aluminum PE layer 5 is hot-pressed and laminated with the aluminum foil layer 4.
[0023] Further, in another embodiment, the laminated aluminum PE layer 5 includes an A layer 51, a B layer 52, a C layer 53, a D layer 54, an E layer 55, an F layer 56, a G layer 57, an H layer 58, and an I layer 59 which are sequentially laminated and blow-molded from the surface layer to the inner layer. Among them, the A layer 51, the B layer 52, the C layer 53, the D layer 54, the E layer 55, the F layer 56, the G layer 57, and the H layer 58 are all made of a first composite material, and the I layer 59 is made of a second composite material.
[0024] Among them, the second composite material is made of linear low-density polyethylene and low-density polyethylene, and the second composite material is made of linear low-density polyethylene, low-density polyethylene, and aluminized material.
[0025] According to the description and drawings of the present utility model, those skilled in the art can easily manufacture or use an odor barrier packaging material of the present utility model and can produce the positive effects recorded in the present utility model.
[0026] Unless otherwise specified, in this utility model, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this utility model 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. Therefore, the terms used to describe the orientation or positional relationship in this utility model are only for exemplary illustration and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood by combining the drawings and according to specific circumstances.
[0027] Unless otherwise clearly specified and defined, in this utility model, if there are terms such as "arranged", "connected" and "coupled", they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0028] The above are only the preferred embodiments of this utility model, and do not impose any form of limitation on this utility model. Any simple modification or equivalent change made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.
Claims
1. An odor barrier packaging material, characterized in that: The invention comprises a PET layer (1), wherein a printing layer (2) is arranged on the inner side of the PET layer (1), wherein the printing layer (2) is compositely connected to an aluminum foil layer (4) via an adhesive layer (3), and wherein the aluminum foil layer (4) is compositely connected to an aluminum-coated PE layer (5) via hot pressing.
2. The odor barrier packaging material according to claim 1, characterized in that: The thickness of the PET layer (1) is 12 to 30 μm, and both sides of the PET layer (1) are corona treated, with a corona value of 38 to 48 dynes.
3. The odor barrier packaging material according to claim 1, characterized in that: The adhesive layer (3) is solvent-free glue.
4. The odor barrier packaging material according to claim 1, characterized in that: The thickness of the aluminum foil layer (4) is 7 to 20 um.
5. The odor barrier packaging material according to claim 1, characterized in that: The aluminum-clad PE layer (5) has a thickness of 20 to 60 μm, and the non-aluminum-clad surface of the aluminum-clad PE layer (5) is hot-pressed and laminated with the aluminum foil layer (4).
6. The odor barrier packaging material according to claim 1, characterized in that: The aluminum-clad PE layer (5) comprises an A layer (51), a B layer (52), a C layer (53), a D layer (54), an E layer (55), an F layer (56), a G layer (57), an H layer (58) and an I layer (59) which are sequentially stacked and blow-molded from the surface layer to the inner layer, wherein the A layer (51), the B layer (52), the C layer (53), the D layer (54), the E layer (55), the F layer (56), the G layer (57) and the H layer (58) are all made of a first composite material, and the I layer (59) is made of a second composite material.