Novel high-temperature-resistant baking packaging paper

By introducing a high-temperature resistant layer, a printing layer, and a waterproof layer into baking paper trays or packaging paper, and using water-based high-temperature resistant screen printing ink, the problem of decomposition of baking paper when heated at high temperatures is solved, the heat resistance, waterproofness, and stability of the printing layer of the packaging paper are improved, and the safety and aesthetics are enhanced.

CN223593142UActive Publication Date: 2025-11-25GUANGDONG SHUNDE LIST PACKAGING CO LTD
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Patent Information

Application Number
CN202423011386.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-06
Publication Date
2025-11-25
Estimated Expiration
2034-12-06

AI Technical Summary

Technical Problem

Existing baking paper trays or baking packaging paper are prone to decomposition in high-temperature heating environments, producing harmful substances. Furthermore, the heat resistance and water resistance of the printed layer are insufficient, affecting both aesthetics and safety.

Method used

It adopts a combination structure of food-grade paper layer, high-temperature resistant layer, printing layer and waterproof layer, and uses water-based high-temperature resistant screen printing ink, combined with silicone oil coating to improve heat resistance, waterproofness and stability of printing layer.

Benefits of technology

It achieves high temperature resistance, waterproofing, and impermeability. The printing layer is non-toxic, odorless, heat-resistant, and wear-resistant, improving the aesthetics and ease of use of the packaging paper.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides novel high-temperature-resistant baking packaging paper, which relates to the technical field of packaging, and comprises a food paper layer, at least one side of the food paper layer is provided with a high-temperature-resistant layer, one side of the food paper layer is provided with a printing layer, and the outer side of the printing layer is provided with a waterproof layer. The baking packaging paper is provided with the high-temperature-resistant layer, the printing layer and the waterproof layer, so that the baking packaging paper has the advantages of fire resistance, heat resistance, water resistance and permeation prevention through comprehensive use; the water-based high-temperature-resistant silk-screen printing ink has the characteristics of no toxicity, no odor, no volatile matter of an organic solvent, low cost, wide material source, good glossiness, analysis resistance, heat resistance, wear resistance, water washing resistance, economy, sanitation and the like, the water resistance of the packaging paper is greatly improved and the viscosity is reduced through the water-based high-temperature-resistant silk-screen printing ink printing, various patterns can be printed on a printing layer, and the packaging paper has a wide application prospect. The attractiveness is improved, and the use is more convenient.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the packaging technical field especially a novel high temperature resistant baking packaging paper. BACKGROUND

[0002] Most people now like to directly put the baking paper tray or baking packaging paper containing food into the microwave oven or oven to heat, such as bread, cakes and the like. However, the inner side of the existing baking paper tray or baking packaging paper is mostly covered with polyethylene film paper, and the highest heating temperature of the polyethylene film paper cannot exceed 100 DEG C. If the temperature is too high, the molecular structure of the film paper is easy to be damaged, and harmful substances will be separated out. The temperature of the baked bread needs to be more than 150 DEG C, which is far higher than the safety range that the film paper can bear. Therefore, most of the baking paper trays or baking packaging papers cannot be directly put into the microwave oven or oven to heat, which not only causes great inconvenience to daily life, but also easily mis-eats the heated baking paper tray, which has great hidden dangers to people's health.

[0003] The prior art provides many high-temperature-resistant packaging papers, but the baking paper trays or baking packaging papers thereof are mostly simple and monotonous in color. In the past, the ink often causes back sticking or adhesion, whitening due to the increase of environmental temperature or humidity. In particular, the imitation leather products often cause the ink film to become soft, deformed and migrated during the post-printing polishing process, resulting in the scrapping of the products. Secondly, due to the poor washing resistance of the ink film during the printing process or even during use, the products are prone to discoloration and color loss.

[0004] Therefore, how to improve the aesthetic appearance and water resistance of the baking paper tray or baking packaging paper printing is a problem to be solved in the prior art. CONTENT OF THE UTILITY MODEL

[0005] The utility model overcomes the shortcomings in the prior art and provides a novel high-temperature-resistant baking packaging paper.

[0006] In order to solve the above technical problems, the utility model is implemented by the following technical scheme:

[0007] A novel high-temperature-resistant baking packaging paper, comprising a food paper layer, at least one side of the food paper layer being provided with a high-temperature-resistant layer, one side of the food paper layer being provided with a printing layer, the outer side of the printing layer being provided with a waterproof layer, and the printing layer being printed with high-temperature-resistant ink.

[0008] Preferably, both sides of the food paper layer are provided with high-temperature-resistant layers, and the printing layer is arranged on the outer side of the high-temperature-resistant layers.

[0009] Preferably, the printing layer is printed with water-based high-temperature-resistant silk-screen ink.

[0010] Preferably, the waterproof layer is a silicone oil layer.

[0011] Preferably, the high-temperature-resistant layer outside the printing layer on one side is brushed with a silicon oil coating.

[0012] Preferably, the food paper layer uses plant fibers as a substrate.

[0013] Compared with the prior art, the novel high-temperature-resistant baking packaging paper has the following beneficial effects:

[0014] A novel high-temperature-resistant baking packaging paper adopts all environmentally friendly materials, is safe and reliable, is provided with a high-temperature-resistant layer, a printing layer and a waterproof layer, and has the advantages of fire resistance, heat resistance, waterproofness and permeation resistance. The printing layer is printed by using water-based high-temperature-resistant silk printing ink, and has the characteristics of non-toxicity, non-odor, no volatile organic solvent, low cost, wide material source, good gloss, resistance to separation, heat resistance, wear resistance, washing resistance and economy and hygiene. The printing layer can print various patterns, improves the aesthetic degree and is more convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present application, together with the embodiments of the present application, to explain the present application and do not constitute a limitation to the present application. In the drawings:

[0016] Figure 1 is a first structural schematic view of the packaging paper according to the present application;

[0017] Figure 2 is a second structural schematic view of the packaging paper according to the present application;

[0018] Figure 3 is a third structural schematic view of the packaging paper according to the present application;

[0019] In the drawings: 1-food paper layer; 2-high-temperature-resistant layer; 3-printing layer; 4-waterproof layer; 5-silicon oil coating; 6-silicon oil layer. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application, and do not limit the present application.

[0021] As shown in Figure 1 the drawing is a first embodiment of the present application, a novel high-temperature-resistant baking packaging paper, which comprises a food paper layer 1, both sides of the food paper layer 1 are provided with a high-temperature-resistant layer 2, one side of the food paper layer 1 is provided with a printing layer 3, and the outside of the printing layer 3 is provided with a waterproof layer 4.

[0022] Specifically, the high-temperature resistant layer 2 is a PET film, which has good transparency, gloss, and excellent airtightness, aroma retention, and moisture resistance. The PET film has excellent mechanical properties, and its toughness is the best among all thermoplastics. Its tensile strength and impact strength are much higher than those of ordinary films. It also has good stiffness and dimensional stability, making it suitable for secondary processing such as printing and paper bags. The PET film also has excellent heat resistance, cold resistance, and good chemical resistance and oil resistance.

[0023] A printing layer 3 printed with water-based high-temperature resistant screen printing ink is provided on the outside of the high-temperature resistant layer 2 on one side, and a waterproof layer 4 with silicone oil is brushed on the outside of the printing layer 3 to enhance the waterproof effect, making the printing layer 3 less prone to water staining and improving the overall stability.

[0024] The food paper layer 1 uses plant fiber as the base material, and the plant fiber is a food-grade material, making the food paper layer 1 edible, environmentally friendly and biodegradable.

[0025] In addition, a silicone oil coating 5 is brushed on the outer side of the high-temperature resistant layer 2, which is the opposite side of the printing layer 3. The silicone oil coating 5 has many special properties, such as low temperature viscosity coefficient, high and low temperature resistance, oxidation resistance, high flash point, low volatility, good insulation, low surface tension, non-corrosive to metals, and non-toxicity. Silicone oil is applied to both the upper and lower sides of the food paper layer 1 to improve the overall stability of the packaging paper and make the packaging paper have the characteristics of high temperature resistance, colorfastness, odorless, non-toxic, and water resistance.

[0026] like Figure 2 As shown in the figure, this is a second embodiment of the present invention, including a food paper layer 1, a high-temperature resistant layer 2 on one side of the food paper layer 1, a printing layer 3 on the other side of the food paper layer 1, and a waterproof layer 4 of silicone oil brushed on the outside of the printing layer 3 to enhance the waterproof effect, making the printing layer 3 less prone to water staining and improving the overall stability.

[0027] In addition, a silicone oil coating 5 is brushed on the outer side of the high-temperature resistant layer 2, which is the opposite side of the printing layer 3. The silicone oil coating 5 has many special properties, such as low temperature viscosity coefficient, high and low temperature resistance, oxidation resistance, high flash point, low volatility, good insulation, low surface tension, non-corrosive to metals, and non-toxicity. Silicone oil is applied to both the upper and lower sides of the food paper layer 1 to improve the overall stability of the packaging paper and make the packaging paper have the characteristics of high temperature resistance, colorfastness, odorless, non-toxic, and water resistance.

[0028] like Figure 3As shown, the figure is the third embodiment of the utility model, including food paper layer 1, food paper layer 1 one side is provided with high temperature resistance layer 2, high temperature resistance layer 2 outside is equipped with printing layer 3, and the waterproof layer 4 that the silicon oil has been brushed in printing layer 3 outside, enhances waterproof effect, so that printing layer 3 is not easily watered by dyeing, improves overall stability.

[0029] In addition, the high temperature resistance layer 2 on the other side, that is, the high temperature resistance layer 2 outside of the opposite side of the printing layer 3 is brushed with a silicon oil coating 5, the silicon oil coating 5 has many special properties, such as low temperature viscosity coefficient, high and low temperature resistance, oxidation resistance, high flash point, low volatility, good insulation, low surface tension, no corrosion to metal, non-toxic, etc. The silicon oil is coated on both sides of the food paper layer 1, improving the overall stability of the packaging paper, making the packaging paper have the characteristics of high temperature resistance, no discoloration, no odor, non-toxic, water resistance, etc.

[0030] In the above three embodiments, the printing layer 3 is printed by water-based high temperature resistant silk screen ink, which has the characteristics of non-toxic, odorless, no volatile organic solvent, low cost, wide material source, good gloss, resistance, heat resistance, wear resistance and water resistance, economic and sanitary, etc. After curing by high temperature, the branching degree of the graphic ink film is improved, which enhances the water resistance of the product. Printing by water-based high temperature resistant silk screen ink greatly improves the water resistance of the packaging paper and reduces the viscosity, and various patterns can be printed on the printing layer, improving the appearance and making it more convenient to use.

[0031] Finally, it should be noted that: the above is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the embodiments, for those skilled in the art, the technical solutions recorded in the above embodiments can be modified, or some technical features can be replaced, but any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A novel high temperature resistant baking wrapper characterized in that: The food paper layer (1) is provided with a high-temperature resistant layer (2) on at least one side, and a printing layer (3) is arranged on one side of the food paper layer (1), and a waterproof layer (4) is arranged on the outer side of the printing layer (3), and the printing layer (3) is printed by high-temperature ink.

2. A novel high temperature resistant baking wrapper as claimed in claim 1, wherein: The food paper layer (1) is provided with a high-temperature resistant layer (2) on both sides, and the printing layer (3) is arranged on the outer side of the high-temperature resistant layer (2).

3. A novel high temperature resistant baking wrapper as claimed in claim 1 or 2, wherein: The printing layer (3) is printed by water-based high-temperature resistant screen printing ink.

4. A novel high temperature resistant baking wrapper as claimed in claim 3, wherein: The waterproof layer (4) is a silicone oil layer (6).

5. A novel high temperature resistant baking wrapper as claimed in claim 3, wherein: The outer side of the high-temperature resistant layer (2) on the opposite side of the printing layer (3) is brushed with a silicone oil coating (5).

6. A novel high temperature resistant baking wrapper as claimed in claim 3, wherein: The food paper layer (1) takes plant fiber as a base material.