Kraft paper board with high wear resistance and tear resistance

Abstract

The utility model relates to the technical field of kraft paper boards, in particular to a highly wear-resistant tear-resistant kraft paper board which comprises a paperboard body, the paperboard body is composed of base layer paperboards, connecting layers, a cow leather layer and a wear-resistant layer, the two connecting layers are located at the ends, away from each other, of the two base layer paperboards respectively, and the wear-resistant layer is located between the two base layer paperboards. The cowhide layer is located at the end, away from the base layer paperboard, of the connecting layer, the wear-resistant layer is located at the end, away from the connecting layer, of the cowhide layer, and a tear-resistant assembly is arranged in the base layer paperboard; the tear-resistant assembly is used for improving the tear-resistant effect of the paperboard main body, the tear-resistant assembly is composed of a supporting block, connecting grooves, tensile strips and a supporting ring, the supporting block is located in the base layer paperboard, the multiple sets of connecting grooves are formed in the supporting block, the tensile strips are located in the connecting grooves, and the supporting ring is located in the supporting block. Compared with an existing kraft paper board, the kraft paper board has the advantage that the overall practicability of the kraft paper board can be improved through the design.

Description

Technical Field

[0001] The utility model relates to the technical field of kraft paperboard, in particular to a highly wear-resistant and tear-resistant kraft paperboard. Background Art

[0002] Corrugated cardboard is a multi-layer adhesive body, which consists of at least one layer of corrugated core paper (commonly known as "corrugated paper", "corrugated core paper", "corrugated paper core", "corrugated base paper") and one layer of cardboard (also known as "boxboard", "boxboard"). It has high mechanical strength and can withstand collisions and falls during transportation. The actual performance of corrugated boxes depends on three factors: the characteristics of the core paper and cardboard and the structure of the box itself. At present, although the relative strength of kraft paper itself is better than that of general surface paper, considering the performance of the overall cardboard, the internal paper core strength is limited, and the overall tear resistance needs to be improved. Therefore, it is particularly important to improve the existing kraft cardboard and design a new type of highly wear-resistant and tear-resistant kraft cardboard to solve the above technical defects and improve the practicality of the overall kraft cardboard. Utility Model Content

[0003] The purpose of the utility model is to provide a highly wear-resistant and tear-resistant kraft paperboard. Through the design of the tear-resistant component, when the paperboard body is torn, the tensile strip can increase the tensile effect to prevent the paperboard body from being torn, which affects the use of the paperboard body. At the same time, it can withstand greater pressure to prevent the paperboard body from being deformed after being stamped, which makes it impossible to use. The overall practicality of the kraft paperboard is improved to solve the problems raised in the above-mentioned background technology.

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

[0005] A highly wear-resistant and tear-resistant kraft paperboard, comprising a paperboard body, the paperboard body consisting of a base paperboard, a connecting layer, a kraft layer and a wear-resistant layer, two groups of connecting layers are respectively located at one end of the two groups of base paperboards away from each other, the kraft layer is located at one end of the connecting layer away from the base paperboard, the wear-resistant layer is located at one end of the kraft layer away from the connecting layer, and an anti-tear component is arranged inside the base paperboard;

[0006] The anti-tearing component is used to increase the anti-tearing effect of the paperboard body.

[0007] As a preferred solution of the utility model, the anti-tear component is composed of a support block, a connecting groove, an anti-tensile strip and a support ring. The support block is located inside the base cardboard, multiple groups of the connecting grooves are opened inside the support block, the anti-tensile strips are located inside the connecting grooves, and multiple groups of the support rings are located on the outside of the base cardboard.

[0008] As a preferred solution of the utility model, multiple groups of connecting grooves are designed with a wavy structure inside the support block, and the internal structure size of the connecting grooves is designed to correspond to the external structure size of the tensile strips, and the tensile strips are connected to the base cardboard through the connecting grooves.

[0009] As a preferred solution of the utility model, the support ring is designed to be a semicircular structure, and multiple groups of the support rings are distributed at equal intervals on the outside of the base paperboard.

[0010] As a preferred solution of the utility model, a buffer ring is provided at one end of the support ring close to the base paperboard, and the buffer ring is designed in an arc-shaped structure.

[0011] As a preferred solution of the utility model, a receiving groove is opened inside the tensile strip, and a reinforcing wire is arranged inside the receiving groove. The external structure size of the reinforcing wire is designed to correspond to the internal structure size of the receiving groove, and the reinforcing wire is connected to the tensile strip through the receiving groove.

[0012] As a preferred solution of the utility model, an anti-corrosion layer is provided at one end of the wear-resistant layer away from the cowhide layer, and the wear-resistant layer is made of polypropylene strips.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In the utility model, through the design of the tear-resistant component and the wavy structural design of the connecting groove, it is possible to increase the contact surface of multiple groups of tensile strips and the base cardboard. When the cardboard body is torn, the tensile strips can increase the tensile effect and prevent the cardboard body from being torn, which affects the use of the cardboard body. When the tensile strips are torn, the strength of the tensile strips can be increased by the reinforcing wires, thereby preventing the tensile strips from breaking and affecting the tear-resistant effect of the cardboard body. When the cardboard body is punched, it can be buffered by multiple groups of support rings, so that the cardboard body can withstand greater pressure. When the support rings are punched, they can be further buffered by the buffer rings inside them. The cardboard body has good compressive physical properties and can withstand greater pressure, which prevents the cardboard body from being deformed after being punched, which causes the cardboard body to be unable to be used. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the split structure of the paperboard main body of the utility model;

[0017] Figure 3 This is a schematic diagram of the base paperboard structure of the utility model.

[0018] In the figure: 1. Cardboard body; 2. Base cardboard; 3. Connecting layer; 4. Cowhide layer; 5. Wear-resistant layer; 6. Tear-resistant component; 7. Support block; 8. Connecting groove; 9. Tensile strip; 10. Support ring; 11. Buffer ring; 12. Reinforcement wire. DETAILED DESCRIPTION

[0019] 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.

[0020] Example:

[0021] See also Figure 1-Figure 3 , the utility model provides a technical solution:

[0022] A highly wear-resistant and tear-resistant kraft paperboard, comprising a paperboard body 1, the paperboard body 1 being composed of a base paperboard 2, a connecting layer 3, a kraft layer 4 and a wear-resistant layer 5, two groups of connecting layers 3 being respectively located at ends of two groups of base paperboards 2 that are away from each other, the kraft layer 4 being located at ends of the connecting layers 3 that are away from the base paperboards 2, the wear-resistant layer 5 being located at ends of the kraft layer 4 that are away from the connecting layers 3, and an anti-tear component 6 being provided inside the base paperboard 2;

[0023] The tear-resistant component 6 is used to increase the tear-resistant effect of the paperboard body 1 .

[0024] Furthermore, the tear-resistant component 6 is composed of a support block 7, a connecting groove 8, an anti-tensile strip 9 and a supporting ring 10. The support block 7 is located inside the base cardboard 2, multiple groups of connecting grooves 8 are arranged inside the support block 7, the anti-tensile strip 9 is located inside the connecting groove 8, and multiple groups of supporting rings 10 are located outside the base cardboard 2. When the cardboard body 1 is in use, the tear-resistant effect of the cardboard body 1 can be increased by the tear-resistant component 6, thereby increasing the service life of the cardboard body 1.

[0025] Among them, multiple groups of connecting grooves 8 are designed with a wavy structure inside the support block 7, and the internal structure size of the connecting grooves 8 is designed to correspond to the external structure size of the anti-tensile strips 9. The anti-tensile strips 9 are connected to the base cardboard 2 through the connecting grooves 8. The anti-tensile strips 9 are connected to the connecting grooves 8 so that the anti-tensile strips 9 can be connected to the base cardboard 2. The wavy structure design of the connecting grooves 8 can increase the contact surface between multiple groups of anti-tensile strips 9 and the base cardboard 2. When the cardboard main body 1 is torn, the anti-tensile effect can be increased through the anti-tensile strips 9 to prevent the cardboard main body 1 from being torn, which affects the use of the cardboard main body 1.

[0026] Secondly, the support ring 10 is designed in a semicircular structure, and multiple groups of support rings 10 are evenly spaced outside the base cardboard 2. When the cardboard body 1 is punched, it can be buffered by the multiple groups of support rings 10, so that the cardboard body 1 can withstand greater pressure.

[0027] Furthermore, a buffer ring 11 is provided at one end of the support ring 10 close to the base cardboard 2. The buffer ring 11 is designed with an arc-shaped structure. When the support ring 10 is punched, it can be further buffered by the buffer ring 11 inside it. It has good compressive physical properties and can withstand greater pressure, thereby preventing the cardboard body 1 from being deformed after being punched, resulting in the problem of being unable to use.

[0028] Furthermore, a receiving groove is provided inside the tensile strip 9, and a reinforcing wire 12 is provided inside the receiving groove. The external structure size of the reinforcing wire 12 is designed to correspond to the internal structure size of the receiving groove, and the reinforcing wire 12 is connected to the tensile strip 9 through the receiving groove. The reinforcing wire 12 is connected to the receiving groove so that the reinforcing wire 12 can be connected to the tensile strip 9. When the tensile strip 9 is torn, the strength of the tensile strip 9 can be increased by the reinforcing wire 12, thereby preventing the tensile strip 9 from breaking, which affects the tear resistance of the cardboard body 1.

[0029] Furthermore, an anti-corrosion layer is provided at one end of the wear-resistant layer 5 away from the cowhide layer 4, and the wear-resistant layer 5 is made of polypropylene strips. When the cardboard main body 1 is in use, the anti-corrosion effect of the cowhide layer 4 can be increased by the anti-corrosion layer on the outside of the wear-resistant layer 5, thereby increasing the service life of the cowhide layer 4. The polypropylene strip material of the wear-resistant layer 5 makes the cardboard main body 1 have excellent wear resistance, anti-cutting and anti-scratch effects, can withstand the friction of metal, etc., and can effectively increase the service life of the cardboard main body 1.

[0030] In this embodiment, the implementation scenario is specifically as follows: in actual use, the wavy structural design of the connecting groove 8 makes it possible to increase the contact surface of multiple groups of anti-tensile strips 9 and the base cardboard 2. When the cardboard body 1 is torn, the anti-tensile strips 9 can increase the anti-tensile effect to prevent the cardboard body 1 from being torn, which affects the use of the cardboard body 1. When the anti-tensile strips 9 are torn, the strength of the anti-tensile strips 9 can be increased by the reinforcing wires 12, thereby preventing the anti-tensile strips 9 from breaking and affecting the tearing resistance of the cardboard body 1. When the cardboard body 1 is stamped, it can be buffered by multiple groups of support rings 10, so that the cardboard body 1 can withstand greater pressure. When the support rings 10 are stamped, , it can be further buffered by the buffer ring 11 inside it, has good compressive physical properties, can withstand greater pressure, and prevent the cardboard body 1 from being deformed after being stamped, resulting in the problem of being unable to use. When the cardboard body 1 is in use, the anti-corrosion layer outside the wear-resistant layer 5 can increase the anti-corrosion effect of the kraft layer 4, thereby increasing the service life of the kraft layer 4. The polypropylene strip material of the wear-resistant layer 5 makes the cardboard body 1 have good wear resistance, anti-cutting and anti-scratch effects, can withstand the friction of metal, etc., and can effectively increase the service life of the cardboard body 1. Compared with the existing kraft cardboard, the utility model can improve the overall practicality of the kraft cardboard through design.

[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 highly wear-resistant and tear-resistant kraft paperboard, comprising a paperboard body (1), characterized in that: The paperboard body (1) is composed of a base paperboard (2), a connecting layer (3), a kraft layer (4) and a wear-resistant layer (5); the two groups of connecting layers (3) are respectively located at one end of the two groups of base paperboards (2) away from each other; the kraft layer (4) is located at one end of the connecting layer (3) away from the base paperboard (2); the wear-resistant layer (5) is located at one end of the kraft layer (4) away from the connecting layer (3); and an anti-tear component (6) is provided inside the base paperboard (2); The anti-tear component (6) is used to increase the anti-tear effect of the paperboard body (1).

2. The highly wear-resistant and tear-resistant kraft paperboard according to claim 1, characterized in that: The tear-resistant component (6) is composed of a support block (7), a connecting groove (8), a tensile strip (9) and a support ring (10); the support block (7) is located inside the base paperboard (2); a plurality of groups of the connecting grooves (8) are arranged inside the support block (7); the tensile strip (9) is located inside the connecting grooves (8); and a plurality of groups of the support rings (10) are located outside the base paperboard (2).

3. The highly wear-resistant and tear-resistant kraft paperboard according to claim 2, characterized in that: The plurality of connection grooves (8) are designed to have a wave-shaped structure inside the support block (7), and the internal structure size of the connection grooves (8) is designed to correspond to the external structure size of the tensile strips (9), and the tensile strips (9) are connected to the base paperboard (2) through the connection grooves (8).

4. The highly wear-resistant and tear-resistant kraft paperboard according to claim 2, characterized in that: The support ring (10) is designed to be a semicircular structure, and a plurality of groups of the support rings (10) are distributed at equal intervals on the outer side of the base paperboard (2).

5. The highly wear-resistant and tear-resistant kraft paperboard according to claim 2, characterized in that: A buffer ring (11) is provided at one end of the support ring (10) close to the base paperboard (2), and the buffer ring (11) is designed to be an arc-shaped structure.

6. The highly wear-resistant and tear-resistant kraft paperboard according to claim 2, characterized in that: The anti-tensile strip (9) is provided with a receiving groove inside, and a reinforcing wire (12) is provided inside the receiving groove. The external structure size of the reinforcing wire (12) is designed to correspond to the internal structure size of the receiving groove, and the reinforcing wire (12) is connected to the anti-tensile strip (9) through the receiving groove.

7. The highly wear-resistant and tear-resistant kraft paperboard according to claim 1, characterized in that: An anti-corrosion layer is provided at one end of the wear-resistant layer (5) away from the cowhide layer (4), and the wear-resistant layer (5) is made of polypropylene strips.

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