High-toughness waterproof coated paper

Abstract

The utility model discloses high-toughness waterproof coated paper which comprises first coated paper, second coated paper is placed on the right side of the first coated paper, a main body of the first coated paper and a main body of the second coated paper are coated base paper bodies, and the tops and the bottoms of the coated base paper bodies are fixedly connected with pressure-relieving tough paper layers. A waterproof outer layer is fixedly connected to the outer surface of the pressure-relieving tough paper layer, waterproof and oil-proof sleeves are connected to the outer surface of the first coated paper and the outer surface of the second coated paper in a sleeving mode, and a connecting film layer is connected between every two adjacent waterproof and oil-proof sleeves. Through the matching of the structures, the outer part of the coated paper is protected by arranging the waterproof outer layer and the waterproof and oil-proof layers in a double-layer manner, the overall waterproof protection effect of the coated paper is realized, and the connecting film layer is additionally arranged between the waterproof and oil-proof layers, so that the connected coated paper can be quickly separated; therefore, the coated paper has better waterproofness and separation effect.

Description

Technical Field

[0001] The utility model relates to the technical field of laminated paper, in particular to a high-toughness waterproof laminated paper. Background Art

[0002] Laminated paper is a composite material that is made by coating plastic particles on the surface of paper through a casting machine. This composite material is oil-proof, relatively waterproof, heat-sealed and high-temperature resistant. It can be used for food, chemicals, wood products, paper, etc., and is mostly used for food industry packaging.

[0003] For example, a high-toughness waterproof coated paper with patent publication number CN202121825626.8 includes a multi-layer composite straw pulp paper, a sodium polyacrylate water-absorbing resin layer and a coating layer. The multi-layer composite straw pulp paper consists of a layer of straw pulp paper, a second layer of straw pulp paper, pulp filaments, and an adhesive. The pulp filaments are between the first layer of straw pulp paper and the second layer of straw pulp paper, and the three are combined by an adhesive. The straw pulp paper itself has low cost and a simple production process. The addition of pulp filaments can greatly improve the overall toughness. The straw pulp paper is provided with a sodium polyacrylate water-absorbing resin layer on both the upper and lower surfaces, and a coating layer is provided on the surface of the sodium polyacrylate water-absorbing resin layer;

[0004] Since there is a single waterproof structural layer on the waterproof laminated paper body, the waterproof performance is limited, and most waterproof laminated papers are connected as a whole, or pre-cut by cutting and pressing. However, the pre-cut waterproof laminated paper is also difficult to separate smoothly, which brings certain adverse effects to actual use, so improvement is needed. Utility Model Content

[0005] The purpose of the utility model is to provide a high-toughness waterproof coated paper, which has the function of protecting the outside of the coated paper by arranging a waterproof outer layer and a waterproof and oil-proof layer in a double-layer manner, thereby achieving the overall waterproof protection effect of the coated paper, and adding a connecting film layer between the waterproof and oil-proof layers to quickly separate the connected coated papers, so that the coated paper has better waterproof properties and separation effect advantages, which brings certain favorable effects on actual use and solves the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-toughness waterproof coated paper, comprising a first coated paper, a second coated paper is placed on the right side of the first coated paper, the main body of the first coated paper and the main body of the second coated paper are both coated base paper bodies, the top and bottom of the coated base paper body are fixedly connected with a pressure-relieving tough paper layer, the outer surface of the pressure-relieving tough paper layer is fixedly connected with a waterproof outer layer, the outer surface of the first coated paper and the outer surface of the second coated paper are both sleeved with waterproof and oil-proof sleeves, and a connecting film layer is connected between adjacent waterproof and oil-proof sleeves.

[0007] Preferably, the inner surface of the pressure-relieving tough paper layer is fixedly connected to a thermal insulation paper layer, and the inner surface of the thermal insulation paper layer is fixedly connected to the outer surface of the coated base paper body.

[0008] Preferably, the main body of the connecting film layer is a flexible band, and the surfaces of the connected flexible bands are fixedly connected with dot-disconnected connecting bands.

[0009] Preferably, the main body of the waterproof and oil-proof sleeve is in the shape of a sealed bag, one side of the sealed bag is provided with a groove, an annular sleeve is adhered to the inner wall of the groove, and the inner wall of the annular sleeve is sealed and connected to the surface of the connecting film layer.

[0010] Preferably, the waterproof and oil-proof sleeve is sealedly connected to the sides near the top and bottom of the waterproof and oil-proof sleeve with a tearable waterproof sleeve, and the inside of the tearable waterproof sleeve is sleeved on the outside of the connecting membrane layer.

[0011] Preferably, adhesive is connected between the laminated base paper body and the pressure-relieving tough paper layer, the thermal insulation paper layer, and the waterproof outer layer, and the adhesive completely fills the surface gaps between the laminated base paper body and the pressure-relieving tough paper layer, the thermal insulation paper layer, and the waterproof outer layer.

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

[0013] In the utility model, the first coated paper and the second coated paper body are both coated base paper bodies, which can play a strong toughness support effect, and the outer surface of the coated base paper body is wrapped and connected with a heat insulation paper layer, which plays the effect of heat insulation and reducing heat source transfer, the outer surface of the heat insulation paper layer is wrapped and connected with a pressure-relief tough paper layer, which plays the effect of external buffering and squeezing, and the outer surface of the pressure-relief tough paper layer is wrapped and connected with a waterproof outer layer, which plays the effect of external protection and water flow shielding, and the coated base paper body and the pressure-relief tough paper layer, the heat insulation paper layer, and the waterproof outer layer are all connected with adhesives, so that the internal paper layers of the first coated paper and the second coated paper are integrated;

[0014] In the utility model, a waterproof and oil-proof sleeve is provided on the outside of the first coated paper and the second coated paper to provide secondary external waterproof and oil-proof protection. When separating two adjacent waterproof and oil-proof sleeves, the tearable waterproof sleeve can be torn and separated first, and then the point-break connecting belt of the connecting film layer can be separated for a secondary time, thereby completing the separation operation of the first coated paper and the second coated paper. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a front cross-sectional view of the utility model;

[0017] Figure 3This is a schematic diagram of the structure of the first coated paper in the utility model;

[0018] Figure 4 It is an enlarged view of point A of the present utility model.

[0019] In the figure: 1. First coated paper; 2. Second coated paper; 3. Coated base paper body; 4. Pressure-relieving tough paper layer; 5. Waterproof outer layer; 6. Waterproof and oil-proof sleeve; 7. Connecting film layer; 8. Heat-insulating paper layer; 9. Point-break connecting belt; 10. Grooved mouth; 11. Ring sleeve; 12. Tearable waterproof sleeve. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1, please refer to Figures 1 to 4 The utility model provides a technical solution: a high-toughness waterproof coated paper, comprising a first coated paper 1, a second coated paper 2 is placed on the right side of the first coated paper 1, the main body of the first coated paper 1 and the main body of the second coated paper 2 are both coated base paper bodies 3, the top and bottom of the coated base paper body 3 are fixedly connected with a pressure-relieving tough paper layer 4, the outer surface of the pressure-relieving tough paper layer 4 is fixedly connected with a waterproof outer layer 5, the outer surface of the first coated paper 1 and the outer surface of the second coated paper 2 are both sleeved with waterproof and oil-proof sleeves 6, and a connecting film layer 7 is connected between adjacent waterproof and oil-proof sleeves 6.

[0022] Furthermore, the inner surface of the pressure-relieving tough paper layer 4 is fixedly connected to a thermal insulation paper layer 8, and the inner surface of the thermal insulation paper layer 8 is fixedly connected to the outer surface of the coated base paper body 3. The thermal insulation paper layer 8 is wrapped and connected to the outer surface of the coated base paper body 3, which has the effect of heat insulation and reducing heat source transfer.

[0023] Furthermore, adhesive is connected between the laminated paper body 3 and the pressure-relieving tough paper layer 4, the thermal insulation paper layer 8, and the waterproof outer layer 5, and the adhesive is completely filled in the surface gaps of the connected laminated paper body 3 and the pressure-relieving tough paper layer 4, the thermal insulation paper layer 8, and the waterproof outer layer 5. Adhesive is connected between the laminated paper body 3 and the pressure-relieving tough paper layer 4, the thermal insulation paper layer 8, and the waterproof outer layer 5, so that the internal paper layers of the first laminated paper 1 and the second laminated paper 2 are integrated.

[0024] Example 2, please refer to Figures 1 to 4The difference between this embodiment and embodiment 1 is that the main body of the connecting film layer 7 is a tough belt, and the connected tough belt surfaces are fixedly connected with a dot-break connecting belt 9, which can be used to perform a secondary separation of the dot-break connecting belt 9 of the connecting film layer 7, so as to complete the separation operation of the first coated paper 1 and the second coated paper 2. The main body of the waterproof and oil-proof sleeve 6 is in the shape of a sealed bag, and a groove 10 is provided on one side of the sealed bag. An annular sleeve 11 is adhered to the inner wall of the groove 10, and the inner wall of the annular sleeve 11 is sealed and connected to the surface of the connecting film layer 7, and the annular sleeve 11 can play the role of externally surrounding and connecting the connecting film layer 7. The waterproof and oil-proof sleeve 6 is sealed and connected to the side near the top and bottom thereof with a tearable waterproof sleeve 12, and the inner part of the tearable waterproof sleeve 12 is sleeved on the outside of the connecting film layer 7, and the tearable waterproof sleeve 12 can play the role of externally surrounding and protecting the connecting film layer 7.

[0025] Working principle: When this kind of high-toughness waterproof coated paper is used, a second coated paper 2 is connected to the side of the first coated paper 1 to form a continuous coated paper roll, which can be used in sections later. Because the main bodies of the first coated paper 1 and the second coated paper 2 are both coated base paper bodies, they can play a strong toughness support effect, and the outer surface of the coated base paper body 3 is wrapped and connected with a heat-insulating paper layer 8 to play the role of heat insulation and reducing heat source transfer. The outer surface of the heat-insulating paper layer 8 is wrapped and connected with a pressure-relief tough paper layer 4 to play an external buffering and squeezing effect. The outer surface of the pressure-relief tough paper layer 4 is wrapped and connected with a waterproof outer layer 5 to play an external protection against water flow The invention has a shielding effect, and adhesive is connected between the coated paper body 3 and the pressure-relieving tough paper layer 4, the heat-insulating paper layer 8, and the waterproof outer layer 5, so that the internal paper layers of the first coated paper 1 and the second coated paper 2 are integrated. Because the first coated paper 1 and the second coated paper 2 are connected to the outside with a waterproof and oil-proof sleeve 6, secondary external waterproof and oil-proof protection can be performed. When separating two adjacent waterproof and oil-proof sleeves 6, the tearable waterproof sleeve 12 can be torn and separated first, and then the point-break connecting belt 9 of the connecting film layer 7 can be separated for a secondary time, so as to complete the separation operation of the first coated paper 1 and the second coated paper 2, so that the coated paper has better waterproofness and separation effect.

[0026] 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 high-toughness waterproof coated paper, comprising a first coated paper (1), a second coated paper (2) being placed on the right side of the first coated paper (1), characterized in that: The main body of the first coated paper (1) and the main body of the second coated paper (2) are both coated base paper bodies (3); the top and bottom of the coated base paper bodies (3) are fixedly connected with pressure-absorbing tough paper layers (4); the outer surface of the pressure-absorbing tough paper layer (4) is fixedly connected with a waterproof outer layer (5); the outer surface of the first coated paper (1) and the outer surface of the second coated paper (2) are both sleeved with waterproof and oil-proof sleeves (6); and adjacent waterproof and oil-proof sleeves (6) are connected with connecting film layers (7).

2. The high-toughness waterproof coated paper according to claim 1, characterized in that: The inner surface of the pressure-slowing toughness paper layer (4) is fixedly connected to a heat-insulating paper layer (8), and the inner surface of the heat-insulating paper layer (8) is fixedly connected to the outer surface of the coated base paper body (3).

3. The high-toughness waterproof coated paper according to claim 1, characterized in that: The main body of the connecting film layer (7) is a flexible band, and the surfaces of the connected flexible bands are fixedly connected by a dot-break connecting band (9).

4. The high-toughness waterproof coated paper according to claim 1, characterized in that: The main body of the waterproof and oil-proof sleeve (6) is in the shape of a sealed bag, one side of the sealed bag is provided with a groove opening (10), an annular sleeve (11) is adhered to the inner wall of the groove opening (10), and the inner wall of the annular sleeve (11) is sealed and connected to the surface of the connecting film layer (7).

5. The high-toughness waterproof coated paper according to claim 1, characterized in that: The waterproof and oil-proof sleeve (6) is sealedly connected to the side surfaces close to the top and bottom thereof with a tearable waterproof sleeve (12), and the interior of the tearable waterproof sleeve (12) is sleeved onto the exterior of the connecting film layer (7).

6. The high-toughness waterproof coated paper according to claim 1, characterized in that: The coated base paper body (3) and the pressure-absorbing tough paper layer (4), the thermal insulation paper layer (8), and the waterproof outer layer (5) are all connected with adhesive, and the adhesive completely fills the surface gaps of the connected coated base paper body (3) and the pressure-absorbing tough paper layer (4), the thermal insulation paper layer (8), and the waterproof outer layer (5).

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