Waterproof and oil-proof food packaging paper

Abstract

The utility model discloses waterproof and oil-proof food packaging paper. The utility model comprises a base layer, the top of the base layer is provided with a first barrier layer, the top of the first barrier layer is provided with a first waterproof layer, the top of the first waterproof layer is provided with a first fluorocarbon-free waterproof oil-proof layer, the top of the first fluorocarbon-free waterproof oil-proof layer is provided with an oil-proof layer, and the bottom of the base layer is provided with a second barrier layer. And a second waterproof layer is arranged at the bottom of the second barrier layer. According to the fluorocarbon-free waterproof and oil-proof packaging paper, the waterproof layer and the fluorocarbon-free waterproof and oil-proof layer are matched with each other, so that external water vapor can be blocked, and the situation that the packaging paper is mildewed and rotted due to the fact that the packaging paper is soaked by the water vapor in external air can be avoided; according to the food packaging device, the situation that after food with large oiliness is packaged, the food with the large oiliness soaks packaging paper can be avoided, and therefore the situation that the packaging paper leaks oil is prevented.

Description

Technical Field

[0001] This utility model relates to the field of food packaging technology, specifically to a waterproof and oil-proof food packaging paper. Background Technology

[0002] At recent international innovative packaging industry conferences, experts have proposed that the packaging industry should start with "recyclable, degradable, and easily recyclable" and focus on the concepts of "reduction, recyclability, reuse, reconfigurability, and regeneration" in packaging to achieve comprehensive and sustainable development of the packaging industry. This places higher demands on packaging materials.

[0003] In the modern packaging industry, packaging paper is being used more and more widely. However, with the rapid development of the packaging industry, the requirements for packaging paper materials are becoming increasingly stringent. Currently, the main component of conventional paper on the market is plant fiber, and this type of fiber has good hygroscopic properties. If the paper surface is not treated, it is easily affected by the external environment and becomes damp, eventually leading to mold and rot. Moreover, when packaging oily, hot, cooked food products, the oil can easily penetrate the packaging paper, causing it to break and leak oil. Utility Model Content

[0004] The purpose of this utility model is to provide a waterproof and oil-proof food packaging paper to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof and oil-proof food packaging paper, comprising a base layer: a first barrier layer is provided on the top of the base layer, a first waterproof layer is provided on the top of the first barrier layer, a first fluorocarbon-free waterproof and oil-proof layer is provided on the top of the first waterproof layer, an oil-proof layer is provided on the top of the first fluorocarbon-free waterproof and oil-proof layer, a second barrier layer is provided at the bottom of the base layer, a second waterproof layer is provided at the bottom of the second barrier layer, a second fluorocarbon-free waterproof and oil-proof layer is provided at the bottom of the second waterproof layer, and printing paper is provided at the bottom of the second fluorocarbon-free waterproof and oil-proof layer.

[0006] By adopting the above technical solution, the combination of the first waterproof layer, the second waterproof layer, the first fluorocarbon-free waterproof and oil-proof layer, and the second fluorocarbon-free waterproof and oil-proof layer can block external moisture, preventing the packaging paper from being soaked by moisture in the outside air and becoming moldy. Moreover, the combination of the first barrier layer, the second barrier layer, the first fluorocarbon-free waterproof and oil-proof layer, the second fluorocarbon-free waterproof and oil-proof layer, and the oil-proof layer can prevent oily foods from wetting the packaging paper after packaging, thereby preventing oil leakage from the packaging paper.

[0007] Preferably, an adhesive layer is sequentially provided between the base layer, the first barrier layer, the first waterproof layer, and the first fluorocarbon-free waterproof and oil-proof layer.

[0008] Preferably, an adhesive layer is sequentially provided between the base layer, the second barrier layer, the second waterproof layer, and the second fluorocarbon-free waterproof and oil-proof layer.

[0009] By adopting the above technical solution, the barrier layer, waterproof layer and fluorocarbon-free waterproof and oil-proof layer are sequentially installed on the top or bottom of the base layer through an adhesive layer.

[0010] Preferably, both the first and second fluorocarbon-free waterproof and oil-proof layers are composed of fluorocarbon-free waterproof and oil-proof latex.

[0011] By adopting the above technical solution, the combination of the first fluorocarbon-free waterproof and oil-proof layer and the second fluorocarbon-free waterproof and oil-proof layer can prevent water vapor or oil from wetting the base layer, thereby protecting the packaging paper. Moreover, the fluorocarbon-free waterproof and oil-proof latex is a reusable material.

[0012] Preferably, both the first waterproof layer and the second waterproof layer are composed of synthetic resin, and both the first barrier layer and the second barrier layer are composed of polyvinylidene chloride.

[0013] By adopting the above technical solution, the first barrier layer, the first waterproof layer, the second barrier layer, and the second waterproof layer form a waterproof and oil-proof structure.

[0014] Preferably, an oil-resistant agent is applied to the top of the first fluorocarbon-free waterproof and oil-resistant layer and solidifies to form an oil-resistant layer.

[0015] By adopting the above technical solution, the oil-proof layer can prevent oil from wetting the packaging paper, while the first fluorocarbon-free waterproof and oil-proof layer can further prevent oil from wetting the packaging paper.

[0016] Preferably, the base layer is filled with wood-plastic composite material.

[0017] By adopting the above technical solutions, wood-plastic composite materials have antibacterial and anti-mildew properties, which can prevent packaging paper from becoming moldy, rotten and damaged when stored for a long time.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the waterproof and oil-proof food packaging paper, through the cooperation between the waterproof layer and the fluorocarbon-free waterproof and oil-proof layer, can block external moisture, thus preventing the packaging paper from being soaked by moisture in the outside air and becoming moldy and rotten. Moreover, through the cooperation between the barrier layer, the fluorocarbon-free waterproof and oil-proof layer and the oil-proof layer, it can prevent oily foods from wetting the packaging paper after packaging, thereby preventing oil leakage from the packaging paper. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the structure of this utility model.

[0020] In the diagram: 1. Base layer; 2. First barrier layer; 3. First waterproof layer; 4. First fluorocarbon-free waterproof and oil-proof layer; 5. Oil-proof layer; 6. Second barrier layer; 7. Second waterproof layer; 8. Second fluorocarbon-free waterproof and oil-proof layer; 9. Printing paper; 10. Adhesive layer. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 This utility model provides an embodiment of a waterproof and oil-proof food packaging paper, comprising a base layer 1; a first barrier layer 2 is disposed on the top of the base layer 1, a first waterproof layer 3 is disposed on the top of the first barrier layer 2, a first fluorocarbon-free waterproof and oil-proof layer 4 is disposed on the top of the first waterproof layer 3, and an oil-proof layer 5 is disposed on the top of the first fluorocarbon-free waterproof and oil-proof layer 4; a second barrier layer 6 is disposed at the bottom of the base layer 1, a second waterproof layer 7 is disposed at the bottom of the second barrier layer 6, a second fluorocarbon-free waterproof and oil-proof layer 8 is disposed at the bottom of the second waterproof layer 7, and a printing layer is disposed at the bottom of the second fluorocarbon-free waterproof and oil-proof layer 8. Paper 9, through the cooperation of the first waterproof layer 3, the second waterproof layer 7, the first fluorocarbon-free waterproof and oil-proof layer 4, and the second fluorocarbon-free waterproof and oil-proof layer 8, can block external moisture, preventing the packaging paper from being soaked by moisture in the outside air and becoming moldy. Moreover, through the cooperation of the first barrier layer 2, the second barrier layer 6, the first fluorocarbon-free waterproof and oil-proof layer 4, the second fluorocarbon-free waterproof and oil-proof layer 8, and the oil-proof layer 5, it can prevent oily foods from wetting the packaging paper after packaging, thereby preventing the packaging paper from leaking oil.

[0023] In this embodiment, an adhesive layer 10 is sequentially provided between the base layer 1, the first barrier layer 2, the first waterproof layer 3 and the first fluorocarbon-free waterproof and oil-proof layer 4, and an adhesive layer 10 is sequentially provided between the base layer 1, the second barrier layer 6, the second waterproof layer 7 and the second fluorocarbon-free waterproof and oil-proof layer 8. The barrier layer, the waterproof layer and the fluorocarbon-free waterproof and oil-proof layer are sequentially installed on the top or bottom of the base layer 1 through the adhesive layer 10.

[0024] In this embodiment, both the first fluorocarbon-free waterproof and oil-proof layer 4 and the second fluorocarbon-free waterproof and oil-proof layer 8 are composed of fluorocarbon-free waterproof and oil-proof latex. The combination between the first fluorocarbon-free waterproof and oil-proof layer 4 and the second fluorocarbon-free waterproof and oil-proof layer 8 can prevent water vapor or oil from wetting the base layer 1, thus protecting the packaging paper. Moreover, the fluorocarbon-free waterproof and oil-proof latex is a reusable material.

[0025] In this embodiment, the first waterproof layer 3 and the second waterproof layer 7 are both composed of synthetic resin, and the first barrier layer 2 and the second barrier layer 6 are both composed of polyvinylidene chloride. The first barrier layer 2, the first waterproof layer 3, the second barrier layer 6 and the second waterproof layer 7 form a waterproof and oil-proof structure.

[0026] In this embodiment, an oil-resistant agent is applied to the top of the first fluorocarbon-free waterproof and oil-resistant layer 4 and solidifies to form an oil-resistant layer 5. The oil-resistant layer 5 can prevent oil from wetting the packaging paper, while the first fluorocarbon-free waterproof and oil-resistant layer 4 can further prevent oil from wetting the packaging paper.

[0027] In this embodiment, the base layer 1 is filled with wood-plastic composite material, which has antibacterial and anti-mildew properties, and can prevent the packaging paper from becoming moldy, rotten and damaged when it is stored for a long time.

[0028] Working principle: Through the cooperation of the first waterproof layer 3, the second waterproof layer 7, the first fluorocarbon-free waterproof and oil-proof layer 4, and the second fluorocarbon-free waterproof and oil-proof layer 8, external moisture can be blocked, preventing the packaging paper from being soaked by moisture in the outside air and becoming moldy. Moreover, through the cooperation of the first barrier layer 2, the second barrier layer 6, the first fluorocarbon-free waterproof and oil-proof layer 4, the second fluorocarbon-free waterproof and oil-proof layer 8, and the oil-proof layer 5, oily foods can be prevented from wetting the packaging paper after packaging, thus preventing oil leakage.

[0029] For those skilled in the art, this invention is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or scope of this invention. Therefore, the embodiments of this invention are exemplary and not restrictive. The scope of this invention is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A water- and oil-proof food wrapping paper comprising a base layer (1), characterized in that: The base layer (1) is provided with a first barrier layer (2) on top, the first barrier layer (2) is provided with a first waterproof layer (3) on top, the first waterproof layer (3) is provided with a first fluorine-free carbon waterproof and oil-proof layer (4) on top, the first fluorine-free carbon waterproof and oil-proof layer (4) is provided with an oil-proof layer (5) on top, the base layer (1) is provided with a second barrier layer (6) on bottom, the second barrier layer (6) is provided with a second waterproof layer (7) on bottom, the second waterproof layer (7) is provided with a second fluorine-free carbon waterproof and oil-proof layer (8) on bottom, and the second fluorine-free carbon waterproof and oil-proof layer (8) is provided with a printing paper (9) on bottom.

2. The waterproof and oil-proof food packaging paper according to claim 1, characterized in that: The base layer (1), the first barrier layer (2), the first waterproof layer (3) and the first fluorine-free carbon waterproof and oil-proof layer (4) are sequentially provided with an adhesive layer (10).

3. The water and oil repellent food packaging paper according to claim 1, characterized in that: The base layer (1), the second barrier layer (6), the second waterproof layer (7) and the second fluorine-free carbon waterproof and oil-proof layer (8) are sequentially provided with an adhesive layer (10).

4. The water and oil repellent food packaging paper according to claim 1, characterized in that: The first fluorine-free carbon waterproof and oil-proof layer (4) and the second fluorine-free carbon waterproof and oil-proof layer (8) are both composed of a fluorine-free carbon waterproof and oil-proof emulsion.

5. The water and oil repellent food packaging paper according to claim 1, wherein: The first waterproof layer (3) and the second waterproof layer (7) are both composed of a synthetic resin, and the first barrier layer (2) and the second barrier layer (6) are both composed of polyvinylidene chloride.

6. The water and oil repellent food packaging paper according to claim 1, wherein: The first fluorine-free carbon waterproof and oil-proof layer (4) is coated with an oil-proof agent to form an oil-proof layer (5) on top.

7. The water and oil repellent food packaging paper according to claim 1, wherein: The base layer (1) is filled with plastic wood material.

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