Liquid packaging material and packaging box
By introducing the PE outer layer, bonding layer and high barrier film layer into the liquid packaging material, the leakage and pollution problems of liquid packaging boxes are solved, and the packaging materials with high barrier and sealing are achieved, which improves the safety and economicality of the packaging.
Patent Information
- Application Number
- CN202420243315.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-01-31
AI Technical Summary
Existing liquid packaging materials and packaging boxes are prone to bacterial contamination, temperature resistance and insufficient molding and sealing when storing edible liquids, resulting in leakage and other problems, affecting the safety of the liquid and the environment.
The paper substrate is equipped with an outer layer of PE on one side, and a bonding material layer, a high barrier film layer and a heat sealing layer on the other side. The high barrier film layer is silicon oxide PET, alumina PET film layer or silicon oxide BOPP layer. The material thickness ratio is 12 to 20:100 to 1500:12 to 20:10 to 70, which enhances the versatility and sealing properties of the material.
It realizes packaging composite materials with high barriers, good airtightness, anti-pollution, light weight, non-toxicity, and high strength, extends the storage period of liquids, reduces the risk of leakage, and improves the technical and economicality of packaging.
Smart Images
Figure CN223149223U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a liquid packaging material and a packaging box thereof. Background Art
[0002] According to market research and patent searches, existing liquid packaging materials, packaging boxes and their paper packaging bags (roof bags) are used to store edible liquids (juice, milk). Due to the poor existing paper layer structure and material selection, the contents are prone to bacterial contamination during use, and the temperature resistance and molding airtightness levels are relatively low. When used for liquids such as wine, oil, soy sauce, they are prone to erosion and leakage after long-term storage, which pollutes the packaging and is harmful to the human body and affects the normal use of the liquid.
[0003] In order to overcome the above defects, we have developed a liquid packaging material, a packaging box and a blank for making the same. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a liquid packaging material, a packaging box and a blank for making the same, which has strong versatility, a stable and reliable layered material structure, light weight and non-toxicity, good strength, high barrier, high strength, energy saving and low consumption, anti-pollution, and good airtightness. Therefore, it has superior performance in terms of technology, practicality and economy.
[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is to provide a liquid packaging material, which includes:
[0006] The paper substrate has a PE outer layer on one side and an adhesive layer, a high-barrier film layer and a heat-sealing layer on the other side; the high-barrier film layer is a silicon oxide PET, an aluminum oxide PET film layer PET or a silicon oxide BOPP or an aluminum oxide BOPP layer or a KPA layer.
[0007] In one or more embodiments of the present invention, the material used to make the adhesive layer includes any one of PE, AE, EMAA, EAA, surin, and AC agent.
[0008] In one or more embodiments of the present invention, the heat-sealing layer is made of polyethylene or ethylene copolymer or a multi-layer co-extruded material, and the multi-layer co-extruded material is a material extruded from any one of nylon, EVOH, Tie and PE.
[0009] In one or more embodiments of the present invention, an adhesive layer is provided between the high barrier film layer and the heat sealing layer; the adhesive layer is made of any one of AC agent, PE, AE, EMAA, EAA, sarin resin or adhesive.
[0010] In one or more embodiments of the present utility model, the thickness ratios of the PE outer layer, the paper substrate, the adhesive layer, the high-barrier film layer, and the heat-sealing layer are 12 to 20: 100 to 1500: 12 to 20: 10 to 20: 25 to 70; the thickness of the paper substrate is 0.1 to 1.5 mm.
[0011] The present utility model also provides a liquid packaging material, which comprises a paper substrate, with a PE outer layer, a metal film layer, and a PE layer provided on one side thereof, and an adhesive layer, a high-barrier film layer, and a heat-sealing layer provided on the other side thereof. The production material of the adhesive layer includes any one of PE, AE, EMAA, EAA, Surlyn resin, AC agent, and adhesive; the high-barrier film layer is a silicon oxide PET, an aluminum oxide PET film layer PET, a silicon oxide BOPP, an aluminum oxide BOPP layer, or a KPA layer.
[0012] In one or more embodiments of the present utility model, the metal film layer is an aluminum foil film or a metallized film. The thickness of the aluminum foil film is 6 μm to 7 μm, and the thickness of the metallized film is 12 μm to 15 μm.
[0013] The present utility model also provides a packaging box, which is made of the above-mentioned liquid packaging material.
[0014] The effects of the present utility model compared with the background technology are as follows:
[0015] Since the present utility model adopts the above-mentioned scheme, it is a packaging composite material with strong versatility, stable and reliable hierarchical material structure, light weight, non-toxicity, good mechanical strength, high barrier, high strength, energy saving and low consumption, pollution prevention, and good airtightness; therefore, it has excellent performance in terms of technology, practicability, and economy. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic structural diagram of the liquid packaging material in the first embodiment of the present utility model;
[0017] Figure 2 It is a schematic structural diagram of the liquid packaging material in the second embodiment of the present utility model;
[0018] Figure 3 It is a schematic structural diagram of the liquid packaging material in the third embodiment of the present utility model;
[0019] Figure 4 It is a schematic structural diagram of the blank of the packaging box made in the fourth embodiment of the present utility model;
[0020] Those skilled in the art can obtain the solutions shown in the drawings in terms of shape, structure, and understanding. The various components in the drawings are not necessarily to scale, and the sizes of the various components and elements in the drawings can be enlarged or reduced to more clearly illustrate the embodiments of the present invention described herein. Detailed Embodiments
[0021] The embodiments of the present invention will be described in detail below. The illustrated embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout.
[0022] The orientation shown in the drawings should not be construed as limiting the specific protection scope of the present invention. It is only for reference and understanding of the preferred embodiments. The positions of the product components shown in the drawings can be changed, the quantity can be increased, or the structure can be simplified.
[0023] The "connection" described in the specification and the "connection" relationship between the components shown in the drawings can be understood as fixedly connected, detachably connected, or integrally formed connections; it can be directly connected or connected through an intermediate medium. Those skilled in the art can understand the connection relationship according to the specific situation and can obtain ways such as screwing, riveting, welding, clamping, or embedding to substitute different embodiments in a suitable manner.
[0024] The orientation words such as up, down, left, right, top, bottom, etc. described in the specification and the orientation shown in the drawings. The components can be in direct contact or in contact through other features between them; for example, being above can be directly above or obliquely above, or it only means being higher than other objects; the same can be analogously understood for other orientations. The following further describes the specific embodiments of the present invention in conjunction with the drawings of the specification, making the technical solutions and their beneficial effects of the present invention clearer and more definite.
[0025] The following describes specific embodiments with reference to the drawings shown. However, those skilled in the art will easily understand that the detailed description given herein with respect to these drawings is for illustrative purposes only and should not be construed as restrictive.
[0026] First Specific Embodiment:
[0027] Refer to Figure 1 As shown in , the embodiment provided by the present invention is a liquid packaging material, which includes:
[0028] A paper substrate 1, with a PE outer layer 2 on one side, and an adhesive layer 3, a high-barrier film layer 4, and a heat-sealing layer 5 on the other side. The high-barrier film layer 4 is a silicon oxide PET, an aluminum oxide PET film layer PET, or a silicon oxide BOPP or an aluminum oxide BOPP layer or a KPA layer.
[0029] The production materials of the binder layer 3 include any one of PE, AE, EMAA, EAA, Surlyn resin, and AC agent. The production materials of the heat-sealing layer 5 are polyethylene or ethylene copolymer or multi-layer co-extruded material, and the multi-layer co-extruded material is a material extruded using any one of nylon, EVOH, Tie, and PE.
[0030] For the PE outer layer 2, paper substrate 1, binder layer 3, high-barrier film layer 4, and heat-sealing layer 5, their thickness ratios are 12 to 20: 100 to 1500: 12 to 20: 10 to 20: 25 to 70; the thickness of the paper substrate is 0.1 to 1.5 mm.
[0031] Second specific embodiment:
[0032] See Figure 2 As shown in, the structure of the second specific embodiment is generally the same as that of the first specific embodiment, the difference being that: a bonding layer 6 is provided between the second high-barrier film layer 4 and the heat-sealing layer 5; the production materials of the bonding layer 6 are any one of AC agent or PE, AE, EMAA, or EAA, or Surlyn resin, or adhesive.
[0033] Third specific embodiment:
[0034] See Figure 3 As shown in, the present invention provides an embodiment of a liquid packaging material, which includes a paper substrate, with a PE outer layer 2, a metal film layer 7, and a PE layer 8 provided on one side, and a binder layer 3, a high-barrier film layer 4, and a heat-sealing layer 5 provided on the other side. The production materials of the binder layer 3 include any one of PE, AE, EMAA, EAA, Surlyn resin, AC agent, and adhesive; the high-barrier film layer 4 is a silicon oxide PET, aluminum oxide PET film layer PET, or silicon oxide BOPP, or aluminum oxide BOPP layer, or KPA layer. The metal film layer 7 is an aluminum foil film or aluminized film, the thickness of the aluminum foil film is 6 μm to 7 μm, and the thickness of the aluminized film is 12 μm to 15 μm.
[0035] Fourth specific embodiment:
[0036] See Figure 4 As shown, a packaging box is made of the liquid packaging material, and includes a box body 10 and a lid body 20. The box body is made of the liquid packaging material through the processes of cutting the box type and pressing the folding line, and then bonding and forming, and the lid body is connected to the box body by an automated device.
[0037] Based on the above and in combination with all the accompanying drawings, the multi-layer composite structure of the present utility model extends the storage period of the liquid contained therein, and problems such as corrosion and leakage will not occur even after long-term use; it has strong versatility, a stable and reliable hierarchical material structure, is light in weight, non-toxic, has good mechanical strength, and is a packaging composite material with high barrier properties, high strength, energy conservation and low consumption, pollution prevention, and good airtightness; it can replace the original glass and plastic bottles, reducing the environmental pollution caused by glass and plastic. It has excellent performance in terms of economy, practicability, and technology.
[0038] For the purpose of illustration, the foregoing description uses specific nomenclature to provide a thorough understanding of the described embodiments. However, it will be apparent to those skilled in the art that no specific details are required in order to practice the described embodiments. Those skilled in the art should understand that the present utility model is not limited to the above specific embodiments, and improvements and substitutions using well-known techniques in the art based on the present utility model fall within the protection scope of the present utility model, which should be defined by each claim.
Claims
1. A liquid packaging material, characterized in that, It includes: A paper substrate, on one side of which there is a PE outer layer, and on the other side there are an adhesive layer, a high-barrier film layer, and a heat-sealing layer; the high-barrier film layer is any one of a silicon oxide PET layer, an aluminum oxide PET film layer, a silicon oxide BOPP layer, an aluminum oxide BOPP layer, and a KPA layer.
2. The liquid packaging material according to claim 1, characterized in that: The production material of the adhesive layer includes any one of PE, AE, EMAA, EAA, Surlyn resin, and AC agent.
3. The liquid packaging material according to claim 1, characterized in that: The production material of the heat-sealing layer is polyethylene or an ethylene copolymer or a multi-layer co-extruded material, and the multi-layer co-extruded material is a material extruded using any one of nylon, EVOH, Tie, and PE.
4. The liquid packaging material according to claim 1, wherein: There is an adhesive layer between the high-barrier film layer and the heat-sealing layer; the production material of the adhesive layer is any one of AC agent, PE, AE, EMAA, EAA, Surlyn resin, or an adhesive.
5. The liquid packaging material according to claim 1, characterized in that, The thickness ratios of the PE outer layer, the paper substrate, the adhesive layer, the high-barrier film layer, and the heat-sealing layer are 12 to 20: 100 to 1500: 12 to 20: 10 to 20: 25 to 70; the thickness of the paper substrate is 0.1 to 1.5 mm.
6. A liquid packaging material, characterized in that, It includes a paper substrate, on one side of which there are a PE outer layer, a metal film layer, and a PE layer, and on the other side there are an adhesive layer, a high-barrier film layer, and a heat-sealing layer. The production material of the adhesive layer includes any one of PE, AE, EMAA, EAA, Surlyn resin, AC agent, and an adhesive; the high-barrier film layer is any one of silicon oxide PET, aluminum oxide PET film layer PET, silicon oxide BOPP, aluminum oxide BOPP layer, and a KPA layer.
7. The liquid packaging material according to claim 6, characterized in that, The metal film layer is an aluminum foil film or a metallized film. The thickness of the aluminum foil film is 6 μm to 7 μm, and the thickness of the metallized film is 12 μm to 15 μm.
8. A packaging box, characterized in that, It is made of any one of the liquid packaging materials in claims 1-7.