Flame-retardant moisture-proof corrugated paper
By employing a multi-layered structural design in corrugated paper, coating it with a waterproof and breathable membrane, a flame-retardant acrylic adhesive layer, and aluminum foil paper, combined with a moisture-proof structure and an insulating foam pad layer, the wear and tear on the flame-retardant and moisture-proof properties of corrugated paper during transportation is solved, thus improving the overall performance of the corrugated paper.
Patent Information
- Application Number
- CN202520345809.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-28
AI Technical Summary
The existing flame-retardant and moisture-proof properties of corrugated paper are easily damaged during transportation, affecting its performance.
The corrugated paper adopts a multi-layer structure design, including an upper cardboard layer, a core paper interlayer, and a lower cardboard layer. Each layer is coated with a waterproof and breathable membrane, a flame-retardant acrylic adhesive layer, fiberglass cloth, and aluminum foil paper, respectively. A moisture-proof structure and an insulating foam pad layer are set in the core paper interlayer to enhance the waterproof, moisture-proof, flame-retardant, and weather-resistant properties of the corrugated paper.
It achieves excellent waterproof, moisture-proof, and flame-retardant properties of corrugated paper, while improving structural strength and weather resistance, thus enhancing the service life of corrugated paper packaging.
Smart Images

Figure CN223823944U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to paper product technical field, especially a kind of fire-retardant moisture-proof corrugated paper. BACKGROUND
[0002] Corrugated paper is a multilayer adhesive body, which is composed of a corrugated core paper interlayer and upper and lower paperboards, has high mechanical strength, good elasticity and extensibility, and is mainly used for manufacturing packaging materials such as cartons.
[0003] When corrugated paper is manufactured into corrugated paper packaging, it has certain requirements for fire-retardant and moisture-proof properties, can delay the burning speed in case of fire, and plays a role in moisture-proof in a humid environment. The existing corrugated paper is coated with a coating layer to achieve fire-retardant and moisture-proof functions. However, the coating layer is prone to wear and tear during the transportation of corrugated paper packaging, thereby affecting its fire-retardant and moisture-proof properties. SUMMARY
[0004] The utility model aims at providing a kind of fire-retardant moisture-proof corrugated paper, with good fire-retardant and moisture-proof effect.
[0005] The above technical purpose of the utility model is realized by the following technical scheme: a kind of fire-retardant moisture-proof corrugated paper, including mutually adhered upper paperboard, corrugated core paper interlayer, lower paperboard, the upper surface of the upper paperboard is coated with adhesive layer, the adhesive layer is provided with waterproof breathable film;The lower surface of the lower paperboard is coated with first fire-retardant acrylic adhesive layer, the first fire-retardant acrylic adhesive layer is adhered with glass fiber cloth, the glass fiber cloth is coated with second fire-retardant acrylic adhesive layer, the second fire-retardant acrylic adhesive layer is adhered with aluminum foil paper;Moisture-proof structure is arranged in the cavity formed between the core paper interlayer and the upper paperboard.
[0006] By adopting the above technical scheme, when manufacturing corrugated paper packaging, the upper paperboard is inward, and the lower paperboard is outward. At this time, in the interior of corrugated paper packaging, the waterproof breathable film plays a good waterproof effect, and the moisture generated by some relatively humid objects is absorbed by the moisture-proof structure after passing through the waterproof breathable film, playing a role in internal moisture-proof. At this time, on the outside of corrugated paper, the first fire-retardant acrylic adhesive layer, glass fiber cloth, second fire-retardant acrylic adhesive layer and aluminum foil paper play a good fire-retardant and waterproof performance, and have good weather resistance. At the same time, the setting of glass fiber cloth can improve the structural strength of fire-retardant and moisture-proof corrugated paper, and avoid damage to the manufactured corrugated paper packaging during use.
[0007] The utility model further provides that: the moisture-proof structure includes strip-shaped non-woven fabric bag and desiccant layer arranged in the non-woven fabric bag.
[0008] By adopting the above technical solution, the moisture-proof structure includes a non-woven bag and a desiccant layer, thereby absorbing moisture inside the corrugated paper and playing a role in drying and moisture prevention.
[0009] A further feature of this invention is that the core paper interlayer is provided with limiting holes on both sides of the nonwoven bag accommodating area, and the nonwoven bag is provided with limiting shafts embedded in the limiting holes on both sides.
[0010] The moisture-proof structure is prevented from falling off by setting limiting shafts on both sides of the non-woven bag for embedding in the limiting holes.
[0011] A further feature of this invention is that an insulating foam pad layer is provided between the core paper interlayer and the lower cardboard layer.
[0012] By adopting the above technical solution and setting an insulating foam pad, the thermal insulation performance of the corrugated paper packaging can be improved. Attached Figure Description
[0013] Figure 1 This is a structural cross-sectional view of the present invention.
[0014] Reference numerals: 1. Upper cardboard; 2. Core paper interlayer; 2-1. Limiting hole; 3. Lower cardboard; 4. Adhesive layer; 5. Waterproof and breathable membrane; 6. First flame-retardant acrylic adhesive layer; 7. Fiberglass cloth; 8. Second flame-retardant acrylic adhesive layer; 9. Aluminum foil; 10. Moisture-proof structure; 10-1. Non-woven bag; 10-2. Desiccant layer; 10-3. Limiting shaft; 11. Thermal insulation foam pad layer. Detailed Implementation
[0015] The present invention will be further described in detail below with reference to the accompanying drawings.
[0016] Example: A flame-retardant and moisture-proof corrugated paper, such as Figure 1 As shown, it includes an upper cardboard layer 1 that is bonded together, a corrugated core paper interlayer 2, and a lower cardboard layer 3.
[0017] like Figure 1 As shown, the upper surface of the upper cardboard 1 is coated with an adhesive layer 4, and a waterproof and breathable film 5 is provided on the adhesive layer 4.
[0018] like Figure 1 As shown, a moisture-proof structure 10 is provided in the cavity formed between the core paper interlayer 2 and the upper cardboard 1. The moisture-proof structure 10 includes a strip-shaped nonwoven bag 10-1 and a desiccant layer 10-2 disposed inside the nonwoven bag 10-1. Limiting holes 2-1 are arranged on both sides of the core paper interlayer 2, which serves as the area for receiving the nonwoven bag 10-1, and limiting shafts 10-3 embedded in the limiting holes 2-1 are provided on both sides of the nonwoven bag 10-1.
[0019] like Figure 1 As shown, an insulating foam pad 11 is provided between the core paper interlayer 2 and the lower cardboard 3.
[0020] like Figure 1 As shown, the lower surface of the lower cardboard 3 is coated with a first flame-retardant acrylic adhesive layer 6, a fiberglass cloth 7 is bonded to the first flame-retardant acrylic adhesive layer 6, a second flame-retardant acrylic adhesive layer 8 is coated to the fiberglass cloth 7, and an aluminum foil 9 is bonded to the second flame-retardant acrylic adhesive layer 8.
[0021] Implementation effect: When making corrugated cardboard packaging, the upper cardboard 1 faces inward and the lower cardboard 3 faces outward. At this time, inside the corrugated cardboard packaging, the waterproof and breathable membrane 5 provides a good waterproof effect, and the moisture generated by some damp items is absorbed by the moisture-proof structure 10 after passing through the waterproof and breathable membrane 5, thus playing a role in internal moisture protection. At this time, on the outside of the corrugated cardboard packaging, the first flame-retardant acrylic adhesive layer 6, the fiberglass cloth 7, the second flame-retardant acrylic adhesive layer 8, and the aluminum foil paper 9 provide good flame-retardant and waterproof performance, and have good weather resistance. At the same time, the setting of the fiberglass cloth 7 can improve the structural strength of the flame-retardant and moisture-proof corrugated cardboard, preventing the corrugated cardboard packaging from being damaged during use.
[0022] The moisture-proof structure 10 includes a non-woven bag 10-1 and a desiccant layer 10-2, thereby absorbing moisture within the corrugated paper and providing a drying and moisture-proof function. Limiting shafts 10-3, which are embedded in the limiting holes 2-1 on both sides of the non-woven bag 10-1, prevent the moisture-proof structure 10 from falling off. The thermal insulation performance of the corrugated paper packaging is improved by incorporating an insulating foam pad layer 11.
[0023] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A flame-retardant and moisture-proof corrugated paper, comprising an upper paperboard (1) bonded together, a corrugated core paper interlayer (2), and a lower paperboard (3), characterized in that: The upper surface of the upper cardboard (1) is coated with an adhesive layer (4), and a waterproof and breathable film (5) is provided on the adhesive layer (4). The lower surface of the lower cardboard (3) is coated with a first flame-retardant acrylic adhesive layer (6), a glass fiber cloth (7) is bonded to the first flame-retardant acrylic adhesive layer (6), a second flame-retardant acrylic adhesive layer (8) is coated to the glass fiber cloth (7), and an aluminum foil paper (9) is bonded to the second flame-retardant acrylic adhesive layer (8). A moisture-proof structure (10) is provided in the cavity formed between the core paper interlayer (2) and the upper paperboard (1).
2. The flame-retardant and moisture-proof corrugated paper according to claim 1, characterized in that: The moisture-proof structure (10) includes a strip-shaped non-woven bag (10-1) and a desiccant layer (10-2) disposed inside the non-woven bag (10-1).
3. The flame-retardant and moisture-proof corrugated paper according to claim 2, characterized in that: The core paper interlayer (2) is used as a accommodating area for the nonwoven bag (10-1) with limiting holes (2-1) arranged on both sides. The nonwoven bag (10-1) has limiting shafts (10-3) embedded in the limiting holes (2-1) on both sides.
4. The flame-retardant and moisture-proof corrugated paper according to claim 1, characterized in that: A thermal insulation foam pad (11) is provided between the core paper interlayer (2) and the lower cardboard layer (3).