High-temperature-resistant oil-proof packaging paper

Abstract

The utility model discloses high-temperature-resistant oil-proof packaging paper, which relates to the technical field of packaging paper and comprises oil-proof paper, one side of the oil-proof paper is fixedly connected with a heat insulation supporting layer, the other side of the oil-proof paper is fixedly connected with a food-grade tinfoil layer, and one side of the food-grade tinfoil layer far away from the oil-proof paper is fixedly connected with a heat preservation layer. A plurality of protruding parts are arranged on the heat insulation supporting layer at equal intervals, the sides, away from the heat insulation supporting layer, of the protruding parts are connected with the food-grade tinfoil layer, so that a heat insulation space is formed between the heat insulation supporting layer and the oil-proof paper, and the heat insulation supporting layer is designed on one side of the oil-proof paper. The protruding parts can reduce the contact area between the heat insulation supporting layer and the oil-proof paper and reduce the heat transfer effect, the heat insulation space is formed between the oil-proof paper and the heat insulation supporting layer, the heat insulation effect can be improved, the situation that the oil-proof layer is damaged by high temperature due to the fact that the temperature of food is too high is prevented, and higher high-temperature-resistant performance is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of packing paper, especially to a high-temperature-resistant oil-proof packing paper. BACKGROUND

[0002] Food packing paper is a special paper and paperboard used for food industry packaging, which has the characteristics of oil-proof, water-proof, high-temperature-resistant, etc. It is widely used in the packaging of instant food, snack food, catering, take-out food, and hot drinks. Food packing paper can be classified according to different materials and functions. The main advantage of food packing paper is its environmental friendliness. It uses renewable resources such as wood and bamboo as raw materials. These materials can be harvested and regenerated. Waste paper packaging products can be naturally decomposed, which has less impact on the environment. In addition, paper packaging has good elasticity and toughness, which can provide good protection for the packaged objects and is not affected by heat and light, making it suitable for the packaging of healthy food and medicine.

[0003] Chinese patent No. CN216712571U discloses a food packaging oil-resistant and high-temperature-resistant packing paper. It has three layers of oil-proof layer, built-in paper layer, and food-grade tin paper layer to prevent oil infiltration, greatly improving the oil resistance of the food-grade tin paper layer. The upper and lower heat insulation support layers isolate the oil-proof layer and the built-in paper layer, and the outer paper layer is reduced by several square holes, greatly reducing the heat conduction area of the upper and lower heat insulation support layers, thereby greatly slowing down the heat transfer from the built-in paper layer and the outer paper layer to the oil-proof layer, avoiding the destruction of the oil-proof layer by high temperature, and having higher high-temperature-resistant performance.

[0004] The above technology uses a heat insulation support layer made of hardboard to achieve heat insulation and heat preservation, resulting in poor flexibility of the packing paper, which cannot wrap food. If the packing paper is forced to fold, it is easy to cause oil infiltration. Therefore, the utility model discloses a high-temperature-resistant and oil-proof packing paper to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a high-temperature-resistant and oil-proof packing paper to solve the problem of poor flexibility of traditional high-temperature-resistant and oil-proof packing paper, which cannot wrap food, and easy oil infiltration if the packing paper is forced to fold.

[0006] To achieve the above purpose, the utility model solves the above technical problems in the following way:

[0007] The utility model relates to a kind of high-temperature-resistant oil-proof packaging paper, including oil-proof paper, one side of the oil-proof paper is fixedly connected with heat insulation support layer, the other side of the oil-proof paper is fixedly connected with food-grade tin paper layer, the side of food-grade tin paper layer away from oil-proof paper is fixedly connected with heat preservation layer, multiple protrusions are equidistantly arranged on the heat insulation support layer, the side of the protrusion away from heat insulation support layer is connected with food-grade tin paper layer, to form heat insulation space between the heat insulation support layer and oil-proof paper.

[0008] As a further scheme of the utility model, the oil-proof paper is provided with an oil-proof layer on the side away from the food-grade tin paper layer, and the oil-proof layer is a food-grade polyacrylate film.

[0009] As a further scheme of the utility model, the heat insulation support layer is made of food-grade oil-absorbing paper.

[0010] As a further scheme of the utility model, the heat preservation layer is made of high-temperature-resistant glass fiber.

[0011] As a further scheme of the utility model, the heat preservation layer is provided with a colored pattern on the side away from the food-grade tin paper layer.

[0012] As a further scheme of the utility model, the oil-proof paper, the heat insulation support layer, the food-grade tin paper layer and the heat preservation layer are fixedly bonded by food-grade adhesive.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The high-temperature-resistant oil-proof packaging paper has a heat insulation support layer designed on one side of the oil-proof paper, the protrusions can reduce the contact area between the heat insulation support layer and the oil-proof paper, reduce the heat transfer effect, and form a heat insulation space between the oil-proof paper and the heat insulation support layer, which helps to increase the heat insulation effect, prevent the oil-proof layer from being damaged by high temperature due to high temperature of the food, and has higher high-temperature-resistant performance.

[0015] The high-temperature-resistant oil-proof packaging paper has a food-grade tin paper layer and a heat preservation layer designed on the other side of the oil-proof paper, the food-grade tin paper layer can effectively block heat radiation, maintain the temperature of the food, and prolong the heat preservation time of the food, and the food-grade tin paper layer has good heat conduction performance, can transfer the heat of each part of the oil-proof paper, promote the uniform temperature of the oil-proof paper, and prevent the local temperature of the oil-proof paper from being too high.

[0016] The high-temperature-resistant oil-proof packaging paper has oil-proof layers on both sides of the oil-proof paper, which can prevent the oil of the food from leaking, and the double-layer anti-seepage can avoid the food-grade polyacrylate film at the folding part of the packaging paper from being broken, fully guaranteeing the anti-leakage effect, and the heat preservation layer can insulate the heat of the food-grade tin paper layer, preventing the occurrence of the hot hand condition. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model is further described below in combination with the drawings and embodiments:

[0018] Fig. 1 It is the appearance view of the utility model of a kind of high-temperature-resistant oil-proof packing paper;

[0019] Fig. 2 It is the sectional view of the utility model of a kind of high-temperature-resistant oil-proof packing paper.

[0020] In the drawing, the component list represented by each mark is as follows: 1, oil-proof paper;11, oil-proof layer;2, heat-insulating support layer;21, protruding part;22, heat-insulating space;3, food-grade tin paper layer;4, heat preservation layer. Specific implementation

[0021] The utility model is further described below in combination with the drawings and embodiments:

[0022] Please refer to Figs. 1-2 The utility model provides a kind of high-temperature-resistant oil-proof packing paper, including oil-proof paper 1, the one side of the oil-proof paper 1 is fixedly connected with heat-insulating support layer 2, multiple protruding parts 21 are equidistantly arranged on the heat-insulating support layer 2, the side of the protruding part 21 away from heat-insulating support layer 2 is all connected with food-grade tin paper layer 3, to make the heat-insulating space 22 between the heat-insulating support layer 2 and oil-proof paper 1;

[0023] Specifically, protruding part 21 can effectively reduce the contact area between heat-insulating support layer 2 and oil-proof paper 1, to reduce heat conduction, enhance heat-insulating effect, can prevent the temperature of food from being too high and causing oil-proof layer 11 to be destroyed by high temperature, to improve the high-temperature-resistant performance of packing paper, the design of protruding part 21 reduces the contact area between heat-insulating support layer 2 and oil-proof paper 1, to reduce the possibility of oil exosmosis, the heat-insulating space 22 between heat-insulating support layer 2 and oil-proof paper 1 allows packing paper to have certain flexibility, can be folded and wrapped food conveniently, adapt to different packaging needs,

[0024] Further, the other side of the oil-proof paper 1 is fixedly connected with food-grade tin paper layer 3;

[0025] Specifically, food-grade tin paper layer 3 can reflect and block heat, reduce the influence of external heat on food, while also slow down the loss of internal heat, help to maintain the temperature of food, and food-grade tin paper layer 3 provides additional oil-proof protection, can prevent oil in food from penetrating to the outside of packaging, keep the neatness of packaging.

[0026] Further, the side of the food-grade tin paper layer 3 away from the oil-proof paper 1 is fixedly connected with heat preservation layer 4.

[0027] Specifically, the heat insulation layer 4 provides additional thermal insulation effect for the entire packaging structure, helps to maintain the temperature of the food, prolongs the heat preservation or cooling time of the food, and effectively prevents the heat inside the package from being transferred outward, reduces heat loss, and helps to maintain the appropriate temperature of the food.

[0028] Further, the oil-proof paper 1 is provided with an oil-proof layer 11 away from the food-grade tin paper layer 3, and the oil-proof layer 11 is a food-grade polyacrylate film.

[0029] Specifically, by providing the oil-proof layer 11 on the oil-proof paper 1, double protection can be provided to prevent oil penetration, which is particularly important for food containing more oil, such as fried food, pastries, etc. Food-grade polyacrylate film is a durable material that can withstand certain mechanical pressure and is not easy to break or tear, thereby improving the overall durability of the packaging paper. Polyacrylate film has good high-temperature resistance and can remain stable at high temperatures without melting or deforming, making it suitable for use in high-temperature environments.

[0030] Further, the heat insulation support layer 2 is made of food-grade oil-absorbing paper.

[0031] Specifically, the main function of food-grade oil-absorbing paper is to absorb oil, which is very important for food packaging that needs to prevent oil penetration. It can keep the surface of the food dry and prevent oil from leaking outside the package. The oil-absorbing paper also provides certain thermal insulation effect, reducing the heat transfer from the food to the external environment, helping to maintain the temperature of the food and prolong the heat preservation time. Since it is a food-grade material, it will not contaminate the food and meet the food safety standards, allowing it to be in direct contact with the food.

[0032] Further, the heat insulation layer 4 is made of high-temperature resistant glass fiber.

[0033] Specifically, glass fiber itself has high heat resistance and can remain stable at high temperatures without melting or burning, which is very important for packaging paper that needs to be used in high-temperature conditions, such as packaging for baked goods or hot drinks. Glass fiber is an excellent thermal insulation material that can effectively prevent heat transfer, maintain the temperature of the food inside the package, and prolong the heat preservation time. Glass fiber is light in texture and will not increase the weight of the package, helping to reduce transportation costs. Glass fiber also has certain moisture resistance, which can prevent moisture from penetrating into the package and keep the food dry.

[0034] Further, the heat insulation layer 4 is printed with colored patterns away from the food-grade tin paper layer 3.

[0035] Specifically, the printed pattern can increase the attractiveness of the packaging paper, making it more visually striking, so as to stand out among numerous commodities and attract the attention of consumers. By printing specific patterns or brand logos on the packaging, it can help consumers identify the brand, enhance brand recognition, and convey specific information such as the type, taste, ingredients or other important information of the product, helping consumers quickly understand the product. The pattern can also be used for promotional activities, such as holiday special edition packaging or co-design with an activity, increasing the market appeal of the product.

[0036] Further, the oil-proof paper 1, the heat-insulating support layer 2, the food-grade tin paper layer 3 and the heat preservation layer 4 are all fixed by food-grade adhesive glue;

[0037] Specifically, the bonding method ensures that the oil-proof paper 1, the heat-insulating support layer 2, the food-grade tin paper layer 3 and the heat preservation layer 4 of the packaging paper can be tightly combined together, while also ensuring the food safety of the packaging paper, because the glue used is food-grade, meaning it meets food safety standards and will not contaminate the food inside the packaging.

[0038] Working principle: In use, the heat-insulating support layer 2 is in direct contact with the food, the oil-proof paper 1 and the food-grade tin paper layer 3 can prevent the leakage of oil and fat from the food, and the heat preservation layer 4 can insulate heat and prevent burns. Fold the packaging paper around the food to prevent the food from quickly dissipating heat and help maintain the flavor of the food.

Claims

1. A high-temperature-resistant oil-proof packaging paper, comprising an oil-proof paper (1), one side of the oil-proof paper (1) is fixedly connected with a heat insulation support layer (2), the other side of the oil-proof paper (1) is fixedly connected with a food-grade tin paper layer (3), and the side, away from the oil-proof paper (1), of the food-grade tin paper layer (3) is fixedly connected with a heat preservation layer (4), characterized in that, A plurality of convex parts (21) are equidistantly arranged on the heat insulation support layer (2), and the side of the convex parts (21) away from the heat insulation support layer (2) is connected with the food-grade tin paper layer (3), so that a heat insulation space (22) is formed between the heat insulation support layer (2) and the oil-proof paper (1).

2. A high temperature resistant, oil resistant packaging paper according to claim 1, characterized in that: The side of the oil-proof paper (1) away from the food-grade tin paper layer (3) is provided with an oil-proof layer (11), and the oil-proof layer (11) is a food-grade polyacrylate film.

3. A high temperature resistant, oil resistant packaging paper according to claim 1, characterized in that: The heat insulation support layer (2) is made of food-grade oil-absorbing paper.

4. The high temperature resistant, oil resistant packaging paper according to claim 1, wherein: The heat preservation layer (4) is made of high-temperature-resistant glass fiber.

5. The high temperature resistant, oil resistant packaging paper according to claim 1, wherein: The oil-proof paper (1), the heat insulation support layer (2), the food-grade tin paper layer (3) and the heat preservation layer (4) are fixed by food-grade adhesive glue.

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