Novel paper container

By spraying food-grade waterproofing materials of different colors on the inner and outer walls of the cup body of the paper container, the inner and outer waterproofing layers are formed, which solves the shortcomings of paper containers in waterproofing, hardness, high temperature resistance, etc., improving production efficiency and reducing costs.

CN222539250UActive Publication Date: 2025-02-28DONGGUAN LIANXIN TECH CO LTD
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Patent Information

Application Number
CN202323666851.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-29
Publication Date
2025-02-28
Estimated Expiration
2033-12-29

AI Technical Summary

Technical Problem

Existing paper containers have shortcomings in waterproofing, hardness, high temperature resistance, etc., with low production efficiency, high cost and high quality control.

Method used

The cup body is molded with water mold wet pressure, and waterproof additives are added during the injection molding process. The inner and outer walls are sprayed with food-grade waterproof materials of different colors to form an inner and outer waterproof layer.

Benefits of technology

It improves the waterproof performance, hardness and high temperature resistance of paper containers, reduces production costs and production steps, and improves the convenience of quality control.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of paper products, in particular to a novel paper container which comprises a cup body integrally formed in an injection molding mode through water mold wet pressing, waterproof auxiliaries are added in the injection molding process of the cup body, and food-grade waterproof materials of different colors are sprayed on the inner wall and the outer wall of the cup body respectively. The food-grade waterproof materials with different colors are respectively sprayed on the inner wall and the outer wall of the cup body to form the inner waterproof layer and the outer waterproof layer with different colors, so that the cup body has the technical effects of water resistance, hardness improvement, food grade improvement, high temperature resistance and the like, the performance of the container is enhanced, and the inner waterproof layer and the outer waterproof layer are made of two food waterproof materials with different performances, so that the container is convenient to use. The inner waterproof layer and the outer waterproof layer with different colors are adopted, the inner waterproof layer and the outer waterproof layer are effectively distinguished, whether position spraying leakage exists or not is rapidly judged, the waterproof effect is guaranteed, spraying with different colors is adopted, prices are different, and the beneficial effect of cost control can be achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of paper products, in particular to a novel paper container. Background Art

[0002] As a renewable resource, paper containers are environmentally friendly and are gradually replacing traditional plastic containers. However, paper containers have certain limitations in terms of waterproofness, hardness, and high temperature resistance. In order to improve the performance of paper containers, a variety of coating materials and technologies have emerged; some of the existing paper containers are made of pulp or plant fibers, but these containers still have deficiencies in terms of waterproofness, hardness, and high temperature resistance. Some containers use coatings to enhance performance, but the type and quality of the coating have a great impact on the performance of the container. There are some problems in the production process of existing paper containers, such as low production efficiency, high production costs, and difficulty in quality control. Utility Model Content

[0003] The purpose of the utility model is to provide a new type of paper container to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A novel paper container comprises a cup body which is integrally injection molded by wet pressing of a water mold, wherein a waterproofing auxiliary agent is added during the injection molding process of the cup body, and the inner wall and the outer wall of the cup body are respectively sprayed with food-grade waterproof materials of different colors to form inner waterproof layers and outer waterproof layers of different colors.

[0006] As a preferred solution of the utility model, the cup body is made of pulp or plant fiber, the cup body is provided with an opening, and the inner diameter of the cup body gradually decreases from the opening to the bottom of the cup body.

[0007] As a preferred solution of the utility model, the inner wall of the cup body is arranged to transition in an arc shape toward the opening, and the cross-sectional area of ​​the opening is larger than the cross-sectional area of ​​the container body.

[0008] As a preferred solution of the utility model, a convex block is fixedly provided at the bottom of the cup body, and the convex block is circular, wherein diamond-shaped or triangular notches are evenly opened on the circular convex block.

[0009] As a preferred solution of the utility model, the outer wall of the cup body is provided with anti-slip grooves, and the food-grade waterproof material is a nano-grade material, specifically polypropylene, polyvinyl alcohol or carboxymethyl cellulose.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] In the utility model, different colors of food-grade waterproof materials are sprayed on the inner wall and outer wall of the cup body respectively to form inner waterproof layers and outer waterproof layers of different colors, so that the cup body has technical effects such as waterproofing, increased hardness, food grade, and high temperature resistance, and the performance of the container is enhanced. The inner and outer waterproof layers are made of two food-grade waterproof materials with different properties, and the inner and outer waterproof layers are made of different colors to effectively distinguish the two inner and outer waterproof layers, quickly determine whether there is a leak in the spraying, and ensure the waterproof effect. In addition, different colors are sprayed, and there are different prices, which can achieve the beneficial effect of controlling costs and reducing production costs. The one-piece injection molding of the cup body reduces production steps, improves production efficiency, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 For this utility model Figure 1 Schematic diagram of the structure viewed from above.

[0014] In the figure: 1, cup body; 2, inner waterproof layer; 3, outer waterproof layer; 4, opening; 5, convex block. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0016] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0017] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0019] For examples, see Figure 1-2 , the utility model provides a technical solution:

[0020] A novel paper container comprises a cup body 1 which is integrally injection molded by a water mold wet pressure. The function of the cup body is that the integral injection molding of the cup body reduces production steps, improves production efficiency and reduces production costs. A waterproofing auxiliary agent is added during the injection molding process of the cup body 1. The inner wall and the outer wall of the cup body 1 are sprayed with food-grade waterproof materials of different colors respectively to form an inner waterproof layer 2 and an outer waterproof layer 3 of different colors. The food-grade waterproof materials of different colors can effectively distinguish the two inner and outer waterproof layers, and quickly judge whether there is a position missing from the spraying to ensure the waterproof effect. In addition, different colors are sprayed, and there are different prices, which can achieve the beneficial effect of controlling costs and reduce production costs.

[0021] As a preferred embodiment of the present invention, the cup body 1 is made of pulp or plant fiber, which is a renewable resource and has better environmental protection than traditional plastic containers, so that such materials emit less carbon dioxide during the production process. Pulp or plant fiber containers can be naturally degraded in a short time and will not cause long-term pollution to the environment.

[0022] The cup body 1 is provided with an opening 4, and the inner diameter of the cup body 1 gradually decreases from the opening 4 to the bottom of the cup body 1. Its function is to provide better thermal insulation performance. That is, since the size of the opening 4 gradually decreases toward the bottom of the cup body 1, the contact area between the external air and the internal hot gas can be reduced, thereby reducing heat loss and improving the thermal insulation performance of the cup body 1. Therefore, this design can keep the temperature of the tea for a longer time and provide a better drinking experience.

[0023] As a preferred embodiment of the present utility model: the inner wall of the cup body 1 is set with an arc-shaped transition toward the opening 4, which allows the curvature of the cup mouth to cooperate with the tension of the liquid surface when pouring liquid, so that the liquid can flow into the cup more smoothly and reduce the possibility of liquid overflow and splashing; an arc surface is formed from the inner wall to the opening to prevent the user's upper lip from being pressed by excess edges when contacting the inner wall, causing a bad experience or even cuts.

[0024] The cross-sectional area of ​​the opening 4 is larger than that of the container body. The function of the opening 4 is that a larger opening can better prevent scalding. When using the container, consumers may accidentally touch the container body. If the opening 4 of the container is small, it is easy to get scalded. A larger opening 4 can better disperse the heat in the container and reduce the risk of scalding. After filling the container with boiling hot tea, the teacup can be picked up by holding the opening 4.

[0025] As a preferred embodiment of the present invention: a protrusion 5 is fixedly provided at the bottom of the cup body 1, and the protrusion 5 is circular, wherein the circular protrusion 5 is evenly provided with diamond-shaped or triangular notches, and its function is to provide a load-bearing effect when the teacup is placed, so as to reduce the possibility of the teacup sliding or tipping over; the design of the protrusion 5 can reduce the contact area of ​​the bottom of the teacup, thereby reducing heat conduction and heat convection, and also avoiding scalding fingers when picking up the teacup.

[0026] As a preferred embodiment of the utility model: the outer wall of the cup body 1 is provided with anti-skid patterns. Kung Fu tea cups usually require some skills and strength when operating, such as rotating the tea cups, pouring tea, etc. The anti-skid patterns can increase the friction between the tea cups and the fingers, thereby improving the stability of the tea cups and making the operation more stable and smooth. When the tea cups are tilted to pour tea, the anti-skid patterns can increase the friction between the fingers and the tea cups, preventing the tea cups from slipping or tipping over, and improving the safety of use. The anti-skid patterns can increase the comfort of the fingers, making holding the tea cups more natural and comfortable, and can also reduce the fatigue of operating the tea cups for a long time. Some anti-skid patterns with a sense of design can also increase the ornamental value of the tea cups, making the Kung Fu tea cups more beautiful.

[0027] Furthermore, the food-grade waterproof material is a nano-grade material, specifically polypropylene, polyvinyl alcohol or carboxymethyl cellulose;

[0028] Polypropylene is a safe and reliable material with good waterproof and oil-proof properties. In addition, polypropylene also has good high temperature resistance and can withstand high temperatures, so it can be used as a waterproof disposable paper teacup. After spraying, through its waterproofness and the shape of the cup body 1, it can achieve the effect of holding liquids.

[0029] Polyvinyl alcohol is a safe and reliable material with good waterproof and oil-proof properties. It can form a thin film on the surface of the paper cup to prevent water or oil from penetrating into the paper cup, keeping the paper tea cup dry and hygienic.

[0030] Carboxymethyl cellulose is a food-grade waterproof material with good waterproof and oil-proof properties. It can form a thin film on the surface of the paper cup to prevent water or oil from penetrating into the paper cup, keeping the paper cup dry and hygienic.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel paper container, comprising a cup body (1) formed by wet-pressing integral injection molding using a water mold, characterized in that: The inner wall and outer wall of the cup body (1) are respectively sprayed with food-grade waterproof materials of different colors to form an inner waterproof layer (2) and an outer waterproof layer (3) of different colors; The cup body (1) is made of paper pulp or plant fiber, the cup body (1) is provided with an opening (4), and the inner diameter of the cup body (1) gradually decreases from the opening (4) to the bottom of the cup body (1); The inner wall of the cup body (1) is arranged to transition in an arc shape toward the opening (4), and the cross-sectional area of ​​the opening (4) is larger than the cross-sectional area of ​​the container body; A protrusion (5) is fixedly provided at the bottom of the cup body (1); the protrusion (5) is circular, and diamond-shaped or triangular notches are evenly formed on the circular protrusion (5).

2. A novel paper container according to claim 1, characterized in that: The outer wall of the cup body (1) is provided with anti-slip grooves, and the food-grade waterproof material is a nano-grade material, specifically polypropylene, polyvinyl alcohol or carboxymethyl cellulose.