Environment-friendly water-based coated paper tableware
The design of the corrugated cardboard bottom and sloping walls solves the problem of paper plates sinking and deforming when holding heavy food. The cavity insulation and paper ring strips form a safe grip, achieving pressure resistance, bending resistance and heat insulation, thus improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI YIBAILI ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional paper plates tend to sink, deform, or even crack when holding heavy or soupy foods, and they are not effective at blocking heat, resulting in a poor user experience.
The design, featuring a corrugated cardboard bottom and sloping walls, distributes pressure evenly from the bottom of the disc, utilizes a static air layer in the cavity for insulation, and forms a safe grip through a removable paper ring clip.
It improves resistance to pressure and bending, provides a safe and reliable way to hold the item, avoids burns, and enhances the user experience.
Smart Images

Figure CN224369516U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of paper utensil design technology, and in particular to an environmentally friendly water-based coated paper tableware. Background Technology
[0002] Paper containers are made from paper pulp or paper as the main base material, formed by molding. Common examples include paper cups, paper bowls, and paper lunch boxes. The core process involves coating the paper base with food-grade polymer materials (such as PE film), giving it waterproof, oil-proof, temperature-resistant, and airtight properties. This allows it to be safely and hygienically used for holding food and beverages, while also being lightweight, environmentally friendly (biodegradable), and disposable.
[0003] However, existing paper cups often encounter the following problems during use:
[0004] (1) When traditional paper plates are used to hold heavy or soupy foods, the bottom is prone to sinking, deforming or even breaking.
[0005] (2) Single-layer or simply molded paper plates cannot effectively block heat, making it very inconvenient for users to hold hot food, often requiring additional padding or the use of bowl clips.
[0006] (3) When food is extremely high in calories, existing products offer almost no safe and convenient end-grip solutions, leaving a blind spot in user experience. Utility Model Content
[0007] The main purpose of this invention is to provide an environmentally friendly water-based coated paper tableware to effectively solve the problem mentioned in the background art that the bottom of existing traditional paper plates is prone to sinking, deformation or even cracking when holding heavy or soupy food. In this invention, the pressure is effectively distributed from the bottom of the plate through the corrugated paper bottom and the sloping wall, and the traditional "cantilever" force mode is transformed into a "bridge" type of uniform force, which greatly improves the pressure resistance and bending resistance.
[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0009] An environmentally friendly water-based coated paper tableware, comprising:
[0010] Disk body,
[0011] The bottom edge of the disc body has a downwardly protruding bottom edge;
[0012] A corrugated paper bottom is attached to the outer periphery of the bottom edge of the tray and provides radial support for the bottom edge of the tray;
[0013] An inclined wall, the upper edge of which is connected to the outer wall edge of the disk body;
[0014] The annular turning surface is formed by bending the bottom of the side wall of the disc inward.
[0015] The cavity is located on the outer wall of the disc and the corrugated paper bottom, which together form an annular cavity.
[0016] Also includes:
[0017] An extension wall is provided on the inner wall of the inclined wall, extending outward from itself, and the top end of the extension wall is connected to the outer edge of the disk body;
[0018] A row of sockets is provided on the extension wall;
[0019] The paper ring retainer has two strips, one end of each strip is integrally connected to the extension wall, and one end of each strip is a bendable paper end that can be inserted into the slot. The paper ring retainer is connected to the inclined wall to form a lifting handle.
[0020] A configuration slot is provided at the insertion end of the paper ring clip.
[0021] The top surface of the corrugated paper bottom abuts against the annular turning surface.
[0022] The inclined wall is made of corrugated paper.
[0023] A row of the aforementioned sockets is arranged around the extension wall.
[0024] The cross-section of the cavity is triangular.
[0025] The opening direction of the slot is adapted to the side wheel surface of the disc body, so that the insertion direction of the paper end is horizontal.
[0026] Compared with the prior art, the beneficial effects of this utility model are:
[0027] (1) In this utility model, the pressure is effectively decomposed from the bottom of the plate through the corrugated paper bottom and the inclined wall, transforming the traditional "cantilever" force-bearing mode into a "bridge" type of uniform force-bearing mode, which greatly improves the pressure resistance and bending resistance.
[0028] (2) This invention utilizes the static air layer in the hollow triangular area as a natural and highly efficient heat insulation material to block the heat conduction path from the bottom of the plate and the food to the holding part (sloping wall). In most daily situations, it can be held directly by hand without worrying about burns, providing a comfortable and stable experience.
[0029] (3) A secure and reliable lifting grip is created by combining a pluggable paper ring strip with an insertion slot on the slanted wall. The slanted insertion and anti-detachment configuration ensure toughness and reliability during lifting.
[0030] It solves the user experience pain points in extreme scenarios and prevents burns. Attached Figure Description
[0031] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof.
[0032] Figure 1 This is a schematic diagram of the overall shape of the present utility model.
[0033] Figure 2 This is a cross-sectional schematic diagram of the present invention.
[0034] Figure 3 This is a schematic diagram of a paper ring card strip.
[0035] The following are the labels in the diagram: 1. Disc body; 2. Disc bottom edge; 3. Corrugated paper bottom; 4. Sloping wall; 5. Annular turning surface; 6. Cavity; 7. Extension wall; 8. Insertion port; 9. Paper ring retainer strip; 10. Configuration slot. Detailed Implementation
[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" 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 will understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0038] like Figure 1-3 As shown, this utility model provides an environmentally friendly water-based coated paper tableware, which includes a plate body 1, a plate bottom edge 2, a corrugated paper bottom 3, an inclined wall 4, an annular turning surface 5, a cavity 6, and an extended wall 7.
[0039] A downward-protruding bottom ridge 2 is formed around the bottom edge of the plate body 1. A corrugated paper bottom 3 adheres to the outer periphery of the bottom ridge 2, providing radial support. The top surface of the corrugated paper bottom 3 abuts against the annular turning surface 5. This is a pivotal point for force transmission and conversion. This is not a simple fold. The pressure from the food inside the plate body 1 is concentrated onto this sturdy ridge. The downward vertical pressure of the plate body 1 is partially converted into radial compressive force acting on the corrugated paper bottom 3 through its inclined structure. The corrugated paper bottom 3 is the sole support for the bottom ridge 2, relying on the excellent vertical compressive strength of the corrugated paper to withstand the radial compression from the bottom ridge 2, preventing it from expanding outwards and failing.
[0040] In this invention, the upper edge of the inclined wall 4 is connected to the outer edge of the plate body 1. The inclined wall 4 is made of corrugated paper, which, instead of solid cardboard, achieves lightweighting and material savings while ensuring strength, meeting environmental protection requirements. The inclined wall 4, together with the outer wall of the plate body and the corrugated paper bottom 3, forms a triangle. This is the most stable structure in engineering, effectively decomposing the vertically downward pressure into inclined and lateral components, greatly enhancing the overall resistance to pressure and tipping, making the plate "stand more stably."
[0041] In this invention, the bottom of the side wall of the disc 1 is bent inward to form an annular turning surface 5; the design of reinforcing edge rigidity bending greatly enhances the bending strength of the weakest edge of the disc 1, preventing edge cracking or deformation. The cavity 6 is located on the outer wall of the disc 1 and is enclosed by the corrugated paper bottom 3 to form an annular cavity 6. The cross-section of the cavity 6 is triangular.
[0042] In this invention, the inner wall of the inclined wall 4 is provided with an extension wall 7 extending outward, the top of which connects to the outer edge of the disc body 1. The extension wall 7 extends the insertion port 8 area from the main inclined wall 4, providing a dedicated and robust operating surface for the insertion of the paper ring retainer 9. A row of insertion ports 8 is provided on the extension wall 7. The row of insertion ports 8 is arranged around the extension wall 7, and the opening direction of the insertion ports 8 is adapted to the side wheel surface of the disc body 1, so that the insertion direction of the paper end is transverse. The transverse opening direction of the insertion ports 8 is adapted to the side wheel surface of the disc body 1. This is a key detail. Its purpose is to ensure that after the paper ring retainer 9 is inserted, its force direction is pulled upward and perpendicular to or at a certain angle to the locking direction of the insertion port 8, forming a mechanical self-locking and preventing it from falling off.
[0043] In this invention, two paper ring clips 9 are provided. One end of each paper ring clip 9 is integrated with the extension wall 7. One end of each paper ring clip 9 is a bendable paper end that can be inserted into the slot 8. The paper ring clip 9 is connected to the inclined wall 4 to form a lifting grip. A shaped slot 10 is provided at the insertion end of the paper ring clip 9; its purpose is to be used as needed. It does not occupy space or waste materials under normal circumstances; it only becomes a functional component when needed at extreme temperatures. Users only need two simple actions, "bending-insertion," to generate a reliable grip, providing a very intuitive experience. The "shaped slot 10" is a second layer of protection against detachment. Its purpose is to form a convex-concave interlocking mechanism with the internal structure of the slot 8, similar to a buckle, to achieve mechanical interlocking. Even under vibration or oblique force, it ensures that the paper ring clip will not accidentally detach during the lifting process, guaranteeing "lifting toughness" and user safety.
[0044] It should be noted that in the environmentally friendly water-based coated paper tableware designed in this utility model, when food is placed on the plate 1, its weight is applied to the bottom of the plate. This pressure is transmitted downwards through the inner wall of the plate 1 to the annular transition surface 5 at the edge of the plate 1. The corrugated paper bottom 3, pre-attached to the outer periphery of the bottom edge 2, functions as a sturdy "foundation." It precisely supports the annular transition surface 5, which is bearing the downward pressure, converting the downward pressure into the compressive stress of the corrugated paper itself. The connection area between the sloping wall 4 and the corrugated paper bottom 3, together with the outer wall of the plate, forms a solid triangular support structure. In engineering, a triangle is the most stable structural form, effectively decomposing the vertically downward pressure into oblique and lateral components, greatly enhancing the overall compressive and anti-tipping capabilities, ensuring that the plate 1 remains stable even when holding heavy food. The triangular support area is a cavity 6. Air is a poor conductor of heat, and this sealed cavity 6 forms an effective thermal barrier, significantly blocking heat transfer from the bottom and body of the plate. This allows for direct hand gripping of the corrugated cardboard slanted wall 4 without burns, ensuring stability and comfort. In extreme cases (such as when the food inside is extremely hot), where the cavity 6's insulation is insufficient to keep the side wall at a touchable temperature, the user simply bends one end of the cardboard. Inserting the bent end into any of the pre-set slots 8 on the extended wall 7 of the slanted wall 4 creates a temporary grip for lifting. This eliminates the need for direct contact with the plate body 1, and because the cardboard ring 9 has a slot 10 to prevent dislodgement, and because the insertion direction is slanted around the side surface of the plate body 1, upward lifting will not pull it out, ensuring lifting flexibility.
[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An environmentally friendly paper tableware with a water-based coating, characterized by, include: Disk body (1), The bottom edge (2) of the disc body (1) is formed with a downward protruding bottom edge (2); A corrugated paper base (3) is attached to the outer periphery of the bottom edge (2) of the plate and provides radial support for the bottom edge (2); An inclined wall (4) is provided, the upper edge of which is connected to the outer wall edge of the disk body (1); The annular turning surface (5) is formed by bending the bottom of the side wall of the disc body (1) inward. The cavity (6) is located on the outer wall of the disc body (1) and the corrugated paper bottom (3) together to form an annular cavity (6).
2. An environmentally friendly water-based coated paper tableware according to claim 1, characterized in that, Also includes: The inner wall of the inclined wall (4) is provided with the extension wall (7) extending outward, and the top end of the extension wall (7) is connected to the outer edge of the disk body (1). A row of sockets (8) is provided on the extension wall (7); Paper ring clip (9), two paper ring clips (9) are provided, one end of the two paper ring clips (9) is integrated with the extension wall (7), one end of the paper ring clip (9) is a bendable paper end, the paper end can be inserted into the socket (8), the paper ring clip (9) is connected to the inclined wall (4) to form a lifting handle; Configuration slot (10) is provided at the insertion end of the paper ring clip (9).
3. The paper tableware with environment-friendly water-based coating according to claim 1, characterized in that, The top surface of the corrugated paper bottom (3) abuts against the annular turning surface (5).
4. The paper tableware with environment-friendly water-based coating according to claim 1, characterized in that, The inclined wall (4) is made of corrugated paper.
5. The paper tableware with environment-friendly water-based coating according to claim 2, characterized in that, A row of the aforementioned sockets (8) are arranged around the extension wall (7).
6. The environmentally friendly water-based coated paper tableware according to claim 1, characterized in that, The cross-section of the cavity (6) is triangular.
7. The environmentally friendly water-based coated paper tableware according to claim 2, characterized in that, The opening direction of the slot (8) is adapted to the side wheel surface of the disc body (1), so that the insertion direction of the paper end is transverse.