Anti-pulling double-sided coated paper

Abstract

The utility model discloses anti-pulling double-sided coated paper which comprises a coated paper body, base paper and a tensile frame, the base paper is arranged in the coated paper body, the tensile frame is connected to the upper end of the base paper in an embedded mode, filling paper is connected to the interior of the tensile frame in an embedded mode, and a mixed coated layer is connected to the upper end of the tensile frame in an embedded mode. The bottom of the base paper is connected with a lamination layer in an embedded mode, through the arrangement of the base paper and the tensile frame, each rhombus grid in the tensile frame is filled with paper pulp, after the paper pulp is solidified into paper, the tensile frame becomes the paper embedded with a rhombus net, the overall anti-pulling performance of a lamination paper body is enhanced through the rhombus net, and through the arrangement of a carbon fiber frame and metal wires, the tensile strength of the lamination paper body is improved. By means of the metal wires, the overall structural stability of the tensile frame can be enhanced through the metal wires, and meanwhile, due to the metal characteristics of the metal wires, when a follow-up user uses the coated paper body as packaging paper, the coated paper body does not have a large rebound angle after being folded.

Description

Technical Field

[0001] This utility model relates to the field of coated paper technology, and in particular to a tensile-resistant double-sided coated paper. Background Technology

[0002] Laminated paper is a type of paper with waterproof and oil-resistant properties. Due to these properties, it is widely used in food packaging. However, existing tensile-resistant double-sided laminated paper mainly consists of a multi-layered laminated structure. While adding a tensile-resistant layer composed of fibers to this multi-layered laminated structure can improve the tensile strength of the laminated paper, the tensile-resistant layer and the paper are only physically bonded together without forming a chemical bond or mechanical interlocking structure. This results in insufficient interlayer interface bonding strength, and the bonding connection cannot effectively disperse external stress. Consequently, under dynamic loads such as folding and stretching, the interface between the tensile-resistant layer and the paper becomes a stress concentration area, and the tensile-resistant layer is prone to separation from the base paper layer after multiple folds.

[0003] The purpose of this invention is to provide a tensile-resistant double-sided coated paper to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the prior art as described in the background section by proposing a tensile-resistant double-sided coated paper.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tensile-resistant double-sided coated paper includes a coated paper body, a base paper, and a tensile frame. The base paper is disposed inside the coated paper body, and the tensile frame is embedded and connected to the upper end of the base paper. A filler paper is embedded and connected inside the tensile frame, and a mixed coating layer is embedded and connected to the upper end of the tensile frame. The coating layer is embedded and connected to the bottom of the base paper.

[0007] Preferably, the surface of the tensile frame is provided with a carbon fiber frame, and the interior of the carbon fiber frame is wrapped with metal wires.

[0008] Preferably, the tensile frame is composed of a diamond mesh formed by the intersection of several tensile structural wires, and each diamond in the diamond mesh is the same size and structure.

[0009] Preferably, the mixed coating layer is composed of a coating layer and a base paper layer, with the base paper layer located at the lower end of the coating layer, and the coating layer and the base paper layer are fixedly connected.

[0010] Preferably, the tensile frame is integrally pressed and fixed to the upper surface of the base paper by a hot pressing process, and then cut and selected according to the actual required size after pressing.

[0011] Preferably, the coated paper body has sealing edges on all four sides, and the sealing edges are mainly composed of coated paper.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. In this utility model, by setting a base paper and a tensile frame, when the tensile frame is pressed onto the upper end of the base paper, the diamond mesh between the tensile frames can be regarded as a diamond grid with only an opening at the top. At this time, the workers can spray pulp onto the surface of the tensile frame so that the pulp fills each diamond grid. After the pulp solidifies into paper, the tensile frame will become a paper with an embedded diamond mesh. The diamond mesh enhances the overall tensile strength of the coated paper body.

[0014] 2. By setting up a carbon fiber frame and metal wires, the overall tensile frame can enhance the overall structural stability through the metal wires. At the same time, the metallic properties of the metal wires ensure that when the coated paper body is used as packaging paper by subsequent users, the coated paper body will not have a large rebound angle after folding. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the tensile-resistant double-sided coated paper proposed in this utility model;

[0016] Figure 2 A top view of the base paper and tensile frame structure;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the side of the coated paper body;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the tensile frame.

[0019] In the figure: 1. Coated paper body; 2. Base paper; 3. Tensile frame; 301. Carbon fiber frame; 302. Metal wire; 4. Filler paper; 5. Coated layer; 6. Mixed coated layer. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example

[0025] Reference Figure 1-4 A tensile-resistant double-sided coated paper includes a coated paper body 1, a base paper 2, and a tensile-resistant frame 3. The base paper 2 is disposed inside the coated paper body 1, and the tensile-resistant frame 3 is fitted and connected to the upper end of the base paper 2. A filler paper 4 is fitted and connected inside the tensile-resistant frame 3, and a mixed coated layer 6 is fitted and connected to the upper end of the tensile-resistant frame 3. A coated layer 5 is fitted and connected to the bottom of the base paper 2. The tensile-resistant frame 3 is composed of a diamond-shaped mesh of several intersecting tensile-resistant structural wires, and each diamond in the mesh is the same size and structure. When the tensile-resistant frame 3 is pressed onto the upper end of the base paper 2, the tensile-resistant frame... The diamond mesh between the frames 3 can be regarded as a diamond grid with only the top opening. At this time, the workers can spray pulp onto the surface of the tensile frame 3 so that the pulp fills each diamond grid. After the pulp solidifies into paper, the tensile frame 3 will become a paper with embedded diamond mesh. The diamond mesh enhances the overall tensile strength of the coated paper body 1. Then the workers press the base paper 2 and the tensile frame 3 onto the top of the coated layer 5. Then the mixed coated layer 6 is pressed onto the top of the tensile frame 3, so that the base paper 2 and the upper and lower surfaces of the tensile frame 3 are covered with a coated layer for waterproofing and oil resistance.

[0026] It should be noted that the inner wall of the diamond mesh is corona-treated to form an uneven interface. During the curing process, the pulp fibers are embedded in the gaps between the mesh, forming a mechanical anchoring effect, which in turn enhances the connection stability between the pulp and the diamond mesh after curing.

[0027] The surface of the tensile frame 3 is provided with a carbon fiber frame 301, and the inside of the carbon fiber frame 301 is wrapped with metal wires 302. Through this design, the overall structural stability of the tensile frame 3 can be enhanced by the metal wires 302. At the same time, the metal properties of the metal wires 302 can prevent the coated paper body 1 from having a large rebound angle after being folded when the user uses the coated paper body 1 as packaging paper.

[0028] The mixed coating layer 6 is composed of a coating layer and a base paper layer, with the base paper layer located at the lower end of the coating layer. The coating layer and the base paper layer are fixedly connected. Through this design, after the mixed coating layer 6 is pressed onto the upper end of the tensile frame 3, the base paper layer can wrap and protect the tensile frame 3 and the base paper 2 from the top. At the same time, the coating layer can play a role in waterproofing and oil resistance.

[0029] The tensile frame 3 is integrally pressed and fixed to the upper surface of the base paper 2 through a hot pressing process. Then, a four-column hot press is used to hold the pressure for 3-5 minutes at a temperature of 120-150℃ and a pressure of 2-5MPa, so that the tensile frame 3 and the base paper 2 form a molten interlock. After pressing, the base paper 2 and the tensile frame 3 are cut and selected using laser cutting equipment to ensure that there is no stress concentration at the interlayer interface. In this way, the tensile frame 3 forms a mechanical lock with the base paper 2 through its own intersecting concave and convex structure during the pressing process, which enhances the pressing stability of the base paper 2 and the tensile frame 3.

[0030] The coated paper body 1 is sealed around all four sides. The sealing edge is mainly composed of coated paper. Through this design, after the coated paper body 1 is produced, the sealing edge can prevent moisture from entering the interior of the coated paper body 1 from all four sides during transportation, thus affecting the overall structural stability of the coated paper body 1.

[0031] Working principle: The tensile frame 3 is integrally pressed and fixed to the upper surface of the base paper 2 through a hot pressing process. Then, a four-column hot press is used to maintain pressure for 3-5 minutes at a temperature of 120-150℃ and a pressure of 2-5MPa, causing the tensile frame 3 and the base paper 2 to fuse together. After pressing, laser cutting equipment is used to cut and select materials for the base paper 2 and the tensile frame 3, ensuring no stress concentration at the interlayer interface. This allows the tensile frame 3 to mechanically interlock with the base paper 2 through its own intersecting concave-convex structure during the pressing process, enhancing the pressing stability between the base paper 2 and the tensile frame 3. When the tensile frame 3 is pressed... After the base paper 2 is placed on top, the diamond mesh between the tensile frame 3 can be regarded as a diamond grid with only the top opening. At this time, the workers can spray pulp onto the surface of the tensile frame 3 so that the pulp fills each diamond grid. After the pulp solidifies into paper, the tensile frame 3 will become a paper with embedded diamond mesh. The diamond mesh enhances the overall tensile strength of the coated paper body 1. Then, the workers press the base paper 2 and the tensile frame 3 onto the top of the coated layer 5. Then, the mixed coated layer 6 is pressed onto the top of the tensile frame 3, so that both the top and bottom surfaces of the base paper 2 and the tensile frame 3 are covered with a coated layer for waterproofing and oil resistance.

[0032] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0033] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

Claims

1. A tensile-resistant double-sided coated paper, comprising a coated paper body (1), a base paper (2), and a tensile-resistant frame (3), characterized in that, The interior of the coated paper body (1) is provided with a base paper (2), and a tensile frame (3) is fitted and connected to the upper end of the base paper (2). A filler paper (4) is fitted and connected inside the tensile frame (3), and a mixed coating layer (6) is fitted and connected to the upper end of the tensile frame (3). A coating layer (5) is fitted and connected to the bottom of the base paper (2).

2. The tensile-resistant double-sided coated paper according to claim 1, characterized in that, The surface of the tensile frame (3) is provided with a carbon fiber frame (301), and the interior of the carbon fiber frame (301) is wrapped with metal wire (302).

3. The tensile-resistant double-sided coated paper according to claim 1, characterized in that, The tensile frame (3) is composed of a diamond mesh formed by the intersection of several tensile structural wires, and each diamond in the diamond mesh is the same size and structure.

4. The tensile-resistant double-sided coated paper according to claim 1, characterized in that, The mixed coating layer (6) is composed of a coating layer and a base paper layer, with the base paper layer located at the lower end of the coating layer, and the coating layer and the base paper layer are fixedly connected.

5. The tensile-resistant double-sided coated paper according to claim 1, characterized in that, The tensile frame (3) is integrally pressed and fixed to the upper surface of the base paper (2) by hot pressing process, and then cut and selected according to the actual required size after pressing.

6. The tensile-resistant double-sided coated paper according to claim 1, characterized in that, The coated paper body (1) is provided with sealing edges on all four sides, and the sealing edges are mainly composed of coated paper.

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