Temperature resistant leakproof paper container

Abstract

This invention discloses a heat-resistant and leak-proof paper container, including a paper cup shell with an internal waterproof coating. The waterproof coating, composed of components such as methyltrimethoxysilane, forms a silica network that can block hot oil and acid / alkali liquids. It is fluorine-free, non-toxic, and biodegradable. The air layer between the first and second leak-proof layers acts as an air insulation layer, significantly reducing the temperature of the outer wall of the paper cup shell. The oil-proof gasket is an independent gasket containing an oil-proof film, preventing liquid from seeping from the bottom of the paper cup shell. The rounded top and bottom edges enhance the user experience. The waterproof coating and oil-proof gasket form an effective protective layer, ensuring good waterproof and heat-resistant performance. It is less prone to leakage, softening, or even structural collapse when in contact with liquids or in high-temperature environments. The first and second leak-proof layers provide structural strength and are environmentally friendly.

Description

Technical Field

[0001] This invention relates to the field of paper container technology, and in particular to a heat-resistant and leak-proof paper container. Background Technology

[0002] Paper containers (usually referring to paper cups) are very common in modern life. They have many unique advantages compared to plastic, glass, or ceramic cups. The main component of most paper cups is pulp, which comes from renewable wood resources. Under proper treatment conditions, they are easier to decompose than plastic cups, resulting in a smaller long-term burden on the environment. Paper cups are designed for single use, avoiding the risk of cross-contamination of bacteria caused by repeated washing, making them ideal for public places, hospitals, offices, and large events. Many paper cups undergo strict sterilization during the production process and are packaged in a dust-free environment to ensure hygiene standards for immediate use. Paper cups are very lightweight, making them easy to transport and carry, which can significantly reduce logistics costs.

[0003] However, the paper containers commonly found on the market have some obvious defects: First, the paper material itself has a loose fiber structure, making it difficult to form an effective protective layer, resulting in poor waterproof performance and temperature resistance. When in contact with liquids or high-temperature environments, it is prone to leakage, softening, or even structural collapse. Therefore, it is necessary to design a temperature-resistant and leak-proof paper container. Summary of the Invention

[0004] The purpose of this invention is to provide a heat-resistant and leak-proof paper container to solve the shortcomings of existing paper containers that are not waterproof and heat-resistant.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a heat-resistant and leak-proof paper container, comprising a paper cup shell, a waterproof coating and an oil-proof gasket, wherein the interior of the paper cup shell is provided with a waterproof coating and the bottom of the paper cup shell is provided with an oil-proof gasket.

[0006] As a further technical solution of the present invention, the bottom of the paper cup shell is fixedly connected to a bottom support.

[0007] As a further technical solution of the present invention, a bottom rounded edge is fixedly connected to the bottom support.

[0008] As a further technical solution of the present invention, a second leak-proof layer is fixedly connected inside the paper cup shell, and a first leak-proof layer is fixedly connected inside the paper cup shell.

[0009] As a further technical solution of the present invention, an air layer is provided between the first leak-proof layer and the second leak-proof layer.

[0010] As a further technical solution of the present invention, the air layer is located in the middle layer of the paper cup shell.

[0011] As a further technical solution of the present invention, a top smooth edge is fixedly connected to the top of the paper cup shell.

[0012] This invention provides a heat-resistant and leak-proof paper container with the following advantages: A waterproof coating forming a silica network with components such as methyltrimethoxysilane provides heat resistance up to 160°C or higher, effectively blocking hot oil, acidic, and alkaline liquids. It is also fluorine-free, non-toxic, and biodegradable. The air layer between the first and second leak-proof layers acts as an air insulation layer, significantly reducing the outer wall temperature of the paper cup shell by more than 30%. The first and second leak-proof layers provide structural strength. The oil-proof gasket is an independent gasket containing an oil-proof film, preventing liquid from seeping from the bottom of the paper cup shell. UV or ozone disinfection ensures a total bacterial count of <100 CFU, meeting food contact safety standards. The rounded top and bottom edges enhance the user experience. The waterproof coating and oil-proof gasket form an effective protective layer, preventing issues such as leakage, softening, or even structural collapse when in contact with liquids or in high-temperature environments. The first and second leak-proof layers provide structural support. The entire paper cup shell is made of environmentally friendly materials, exhibiting excellent environmental performance. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of Example 1; Figure 2 This is a magnified view of a portion of region A in Example 1; Figure 3 This is an overall front view of Example 1; Figure 4 This is a three-dimensional schematic diagram of the entire embodiment 2; Figure 5 This is an overall front view of Example 2; Figure 6 This is a three-dimensional schematic diagram of the entire embodiment 3; Figure 7 This is an overall front view of Example 3.

[0015] In the diagram: 1. Paper cup shell; 2. Rounded top edge; 3. Waterproof coating; 4. Bottom support; 5. Rounded bottom edge; 6. First leak-proof layer; 7. Oil-proof gasket; 8. Second leak-proof layer; 9. Air layer. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see the appendix Figure 1 -Appendix Figure 7 The present invention provides the following: Example 1 A heat-resistant and leak-proof paper container includes a paper cup shell 1, a waterproof coating 3, and an oil-proof gasket 7. The paper cup shell 1 has a waterproof coating 3 inside, and an oil-proof gasket 7 at the bottom. A bottom support 4 is fixedly connected to the bottom of the paper cup shell 1. A bottom rounded edge 5 is fixedly connected to the bottom support 4. A second leak-proof layer 8 and a first leak-proof layer 6 are fixedly connected inside the paper cup shell 1. An air layer 9 is provided between the first leak-proof layer 6 and the second leak-proof layer 8. The air layer 9 is located in the middle layer of the paper cup shell 1. A top rounded edge 2 is fixedly connected to the top of the paper cup shell 1.

[0018] Example 2 A heat-resistant and leak-proof paper container includes a paper cup shell 1, a waterproof coating 3, and an oil-proof gasket 7. The paper cup shell 1 has a waterproof coating 3 inside and an oil-proof gasket 7 at the bottom. A bottom support 4 is fixedly connected to the bottom of the paper cup shell 1. A second leak-proof layer 8 and a first leak-proof layer 6 are fixedly connected inside the paper cup shell 1. An air layer 9 is provided between the first leak-proof layer 6 and the second leak-proof layer 8. The air layer 9 is located in the middle layer of the paper cup shell 1.

[0019] Example 3 A heat-resistant and leak-proof paper container includes a paper cup shell 1, a waterproof coating 3, and an oil-proof gasket 7. The paper cup shell 1 has a waterproof coating 3 inside and an oil-proof gasket 7 at the bottom. A bottom support 4 is fixedly connected to the bottom of the paper cup shell 1. A second leak-proof layer 8 and a first leak-proof layer 6 are fixedly connected inside the paper cup shell 1. An air layer 9 is provided between the first leak-proof layer 6 and the second leak-proof layer 8. The air layer 9 is located in the middle layer of the paper cup shell 1. A top rounded edge 2 is fixedly connected to the top of the paper cup shell 1.

[0020] Specifically, in use, the waterproof coating 3 first forms a silica network with components such as methyltrimethoxysilane, which is heat-resistant to over 160℃ and can block hot oil, acid and alkali liquids. It is also fluorine-free, non-toxic, and biodegradable. The air layer 9 between the first leak-proof layer 6 and the second leak-proof layer 8 is an air insulation layer, which can significantly reduce the temperature of the outer wall of the paper cup shell 1 by more than 30%. The first leak-proof layer 6 and the second leak-proof layer 8 provide structural strength. The oil-proof gasket 7 is an independent gasket containing an oil-proof film, which can prevent liquid from seeping out from the bottom of the paper cup shell 1. UV or ozone disinfection ensures a total bacterial count of <100 CFU, meeting food contact safety standards. The rounded top edge 2 and bottom edge 5 enhance the user experience. The waterproof coating 3 and oil-proof gasket 7 form an effective protective layer, preventing problems such as leakage, softening, or even structural collapse when in contact with liquids or high-temperature environments. The first leak-proof layer 6 and the second leak-proof layer 8 provide strength support. The entire paper cup shell 1 is made of environmentally friendly materials, exhibiting good environmental performance.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A heat-resistant and leak-proof paper container, comprising a paper cup shell (1), a waterproof coating (3), and an oil-proof gasket (7), characterized in that: The inside of the paper cup shell (1) is provided with a waterproof coating (3), and the bottom of the paper cup shell (1) is provided with an oil-proof gasket (7).

2. The heat-resistant and leak-proof paper container according to claim 1, characterized in that: The bottom of the paper cup shell (1) is fixedly connected to a bottom support (4).

3. The heat-resistant and leak-proof paper container according to claim 2, characterized in that: The bottom support (4) is fixedly connected to the bottom rounded edge (5).

4. A heat-resistant and leak-proof paper container according to claim 2, characterized in that: The paper cup shell (1) is fixedly connected to a second leak-proof layer (8), and the paper cup shell (1) is fixedly connected to a first leak-proof layer (6).

5. A heat-resistant and leak-proof paper container according to claim 4, characterized in that: An air layer (9) is provided between the first leak-proof layer (6) and the second leak-proof layer (8).

6. A heat-resistant and leak-proof paper container according to claim 5, characterized in that: The air layer (9) is located in the middle layer of the paper cup shell (1).

7. A heat-resistant and leak-proof paper container according to claim 6, characterized in that: The top of the paper cup shell (1) is fixedly connected to a top rounded edge (2).

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