Anti-uv anti-aging corrugated paper

Abstract

The utility model discloses an anti -ultraviolet anti -aging corrugated paper belongs to corrugated paper technical field, including core corrugated layer, protection layer, UV blocking layer, anti -aging reinforcing layer and moisture -proof layer, the protection layer is bonded through corn starch adhesive layer the outer surface of core corrugated layer, the UV blocking layer is bonded through corn starch adhesive layer the outer surface of protection layer, anti -aging reinforcing layer is bonded through corn starch adhesive layer the inner surface of core corruggated layer, the moisture -proof layer is bonded through corn starch adhesive layer the inner surface of anti -aging reinforcing layer, through UV blocking layer and protection layer can reduce the ultraviolet ray penetration to the inside of corrugated paper, improve the anti -ultraviolet ability of corrugated paper, through the moisture -proof layer can block the water vapor invasion inside corrugated paper, avoid the corrugated paper inside hygroscopic mould, through anti -aging reinforcing layer can resist the influence of high temperature ultraviolet to internal structure, enhance the anti -aging ability of raw paper, prolong the life.

Description

Technical Field

[0001] This utility model belongs to the field of corrugated paper technology, specifically relating to a UV-resistant and anti-aging corrugated paper. Background Technology

[0002] Corrugated paper, as a lightweight, high-strength, low-cost, and recyclable packaging material, has been widely used in logistics and transportation packaging, warehouse turnover boxes, and commodity outer packaging boxes due to its excellent cushioning performance and load-bearing capacity brought by its unique corrugated core structure (composed of a corrugated paper core and two side linerboards). At the same time, its application in non-traditional packaging scenarios such as agricultural outdoor temporary covering and outdoor advertising display racks is also increasing.

[0003] Currently, most existing corrugated paper uses ordinary wood pulp or kraft paper as its base material, which lacks an effective UV-blocking structure. When corrugated paper is used outdoors, long-term exposure to sunlight allows ultraviolet rays to penetrate the paper surface, triggering a photo-oxidation reaction in the paper fibers. This leads to a significant decrease in the tensile and tear strength of the corrugated paper, causing it to gradually become brittle, discolored, and even crack and delaminate, making it unable to maintain the stability of the packaging structure and severely affecting its functionality. Utility Model Content

[0004] The purpose of this invention is to provide a UV-resistant and anti-aging corrugated paper to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-ultraviolet and anti-aging corrugated paper, comprising a core corrugated layer, a protective layer, a UV blocking layer, an anti-aging reinforcing layer, and a moisture-proof layer. The protective layer is bonded to the outer surface of the core corrugated layer by a corn starch adhesive layer. The UV blocking layer is bonded to the outer surface of the protective layer by a corn starch adhesive layer. The anti-aging reinforcing layer is bonded to the inner surface of the core corrugated layer by a corn starch adhesive layer. The moisture-proof layer is bonded to the inner surface of the anti-aging reinforcing layer by a corn starch adhesive layer.

[0006] In one preferred embodiment, the core corrugated layer comprises a corrugated paper core and kraft paper bonded to both sides of the corrugated paper core.

[0007] In a preferred embodiment, the protective layer is food-grade pure aluminum foil.

[0008] In a preferred embodiment, the UV barrier layer is a high-purity silicon dioxide film.

[0009] In a preferred embodiment, the anti-aging reinforcement layer is a polyimide film.

[0010] In a preferred embodiment, the moisture-proof layer is a low-density polyethylene film.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This UV-resistant and anti-aging corrugated paper reflects and blocks ultraviolet rays through a UV blocking layer and provides secondary blocking through a protective layer, reducing the penetration of ultraviolet rays into the interior of the corrugated paper. In addition, the protective layer can isolate oxygen and inhibit the oxidation and aging inside the corrugated paper, thereby improving the UV resistance of the corrugated paper. This UV-resistant and anti-aging corrugated paper has a moisture-proof layer that prevents moisture from penetrating the interior of the corrugated paper, thus preventing it from absorbing moisture and becoming moldy. The anti-aging reinforcement layer can resist the effects of high temperature and ultraviolet rays on the internal structure, while further blocking moisture penetration. This prevents the paper from undergoing fiber hydrolysis and mold growth due to long-term moisture absorption, thereby maintaining the mechanical strength of the paper, enhancing its anti-aging ability, and extending its service life. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 For the present utility model Figure 1 Enlarged view of the structure at point A in the middle.

[0013] In the diagram: 1. Core corrugated layer; 2. Protective layer; 3. UV barrier layer; 4. Anti-aging reinforcement layer; 5. Moisture-proof layer; 6. Corn starch adhesive layer. Detailed Implementation

[0014] The present invention will be further described below with reference to the embodiments.

[0015] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0016] Please see Figure 1-2 This utility model provides an anti-ultraviolet and anti-aging corrugated paper, including a core corrugated layer 1, a protective layer 2, a UV blocking layer 3, an anti-aging reinforcing layer 4, and a moisture-proof layer 5. The core corrugated layer 1 includes a corrugated paper core 11 and kraft paper 12 bonded to both sides of the corrugated paper core 11. The core corrugated layer 1 can provide the core load-bearing capacity of the corrugated paper and maintain the stability of the corrugated paper structure.

[0017] The protective layer 2 is bonded to the outer surface of the core corrugated layer 1 via a corn starch adhesive layer 6. The protective layer 2 is made of food-grade pure aluminum foil. The UV blocking layer 3 is bonded to the outer surface of the protective layer 2 via a corn starch adhesive layer 6. The UV blocking layer 3 is made of high-purity silica film. The UV blocking layer 3 can reflect and block ultraviolet rays, while the protective layer 2 can provide secondary blocking of ultraviolet rays, reducing the penetration of ultraviolet rays into the interior of the corrugated paper. In addition, the protective layer 2 can isolate oxygen and inhibit the internal oxidation and aging of the corrugated paper, thereby improving the UV resistance of the corrugated paper.

[0018] The anti-aging reinforcing layer 4 is bonded to the inner surface of the core corrugated layer 1 via a corn starch adhesive layer 6. The anti-aging reinforcing layer 4 is a polyimide film, which has excellent high and low temperature resistance and damp heat resistance. It can form an anti-aging barrier between the core corrugated layer 1 and the moisture-proof layer 5. The moisture-proof layer 5 is bonded to the inner surface of the anti-aging reinforcing layer 4 via a corn starch adhesive layer 6. The moisture-proof layer 5 is a low-density polyethylene film. The moisture-proof layer 5 can prevent moisture from penetrating into the interior of the corrugated paper, thus preventing the corrugated paper from absorbing moisture and becoming moldy. The anti-aging reinforcing layer 4 can resist the effects of high temperature and ultraviolet rays on the internal structure, and at the same time, it can further block moisture penetration, preventing the base paper from undergoing fiber hydrolysis and mold growth due to long-term moisture absorption. This maintains the mechanical strength of the base paper, enhances its anti-aging ability, and extends its service life.

[0019] Furthermore, each layer is bonded together with a corn starch adhesive layer 6, making the materials used more environmentally friendly.

[0020] The working principle and usage process of this utility model are as follows: First, the core corrugated layer 1 provides core load-bearing capacity for the corrugated paper, maintaining the stability of the corrugated paper structure. The UV blocking layer 3 reflects and blocks ultraviolet rays. The protective layer 2 provides secondary blocking of ultraviolet rays, reducing the penetration of ultraviolet rays into the interior of the corrugated paper. Moreover, the protective layer 2 can isolate oxygen and inhibit the internal oxidation and aging of the corrugated paper, thereby improving the UV resistance of the corrugated paper. The moisture-proof layer 5 can prevent water vapor from penetrating into the interior of the corrugated paper, avoiding moisture absorption and mold growth inside the corrugated paper. The anti-aging reinforcement layer 4 can resist the impact of high temperature ultraviolet rays on the internal structure, and at the same time can further block water vapor penetration, preventing the base paper from undergoing fiber hydrolysis and mold growth due to long-term moisture absorption, thereby maintaining the mechanical strength of the base paper, enhancing its anti-aging ability, and extending its service life.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A UV-resistant and anti-aging corrugated paper, comprising a core corrugated layer (1), a protective layer (2), a UV blocking layer (3), an anti-aging reinforcing layer (4), and a moisture-proof layer (5), characterized in that: The protective layer (2) is bonded to the outer surface of the core corrugated layer (1) by a corn starch adhesive layer (6), the UV barrier layer (3) is bonded to the outer surface of the protective layer (2) by a corn starch adhesive layer (6), the anti-aging reinforcement layer (4) is bonded to the inner surface of the core corrugated layer (1) by a corn starch adhesive layer (6), and the moisture-proof layer (5) is bonded to the inner surface of the anti-aging reinforcement layer (4) by a corn starch adhesive layer (6).

2. The UV-resistant and anti-aging corrugated paper according to claim 1, characterized in that: The core corrugated layer (1) includes a corrugated paper core (11) and kraft paper (12) bonded to both sides of the corrugated paper core (11).

3. The UV-resistant and anti-aging corrugated paper according to claim 1, characterized in that: The protective layer (2) is food-grade pure aluminum foil.

4. The UV-resistant and anti-aging corrugated paper according to claim 1, characterized in that: The UV barrier layer (3) is a high-purity silicon dioxide film.

5. The UV-resistant and anti-aging corrugated paper according to claim 1, characterized in that: The anti-aging reinforcement layer (4) is a polyimide film.

6. The UV-resistant and anti-aging corrugated paper according to claim 1, characterized in that: The moisture-proof layer (5) is a low-density polyethylene film.

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