Insect-proof packaging paper

Abstract

The utility model discloses insect-proof packaging paper, relates to the technical field of papermaking, and aims to solve the problem that the existing insect-proof packaging paper is thicker. The insect-proof packaging paper comprises a body paper layer and multiple coating layers, the multiple coating layers are arranged on one surface of the body paper layer, at least one coating layer is an insect-proof layer, the multiple coating layers comprise a bottom coating layer, a middle coating layer and a surface coating layer, and at least one of the bottom coating layer, the middle coating layer and the surface coating layer is the insect-proof layer. The insect-proof packaging paper provided by the utility model is used for enabling common packaging paper to have insect-proof property, and the packaging paper can be made to be lighter and thinner.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking, in particular to an insect-proof packaging paper. Background Art

[0002] With the rapid development of society, people are paying more and more attention to environmental protection and health. The hygienic conditions of various materials and products closely related to people's lives during storage and transportation are also receiving more and more attention. As a commonly used environmentally friendly and recyclable packaging material, the development of packaging paper with insect-proof properties is of great significance.

[0003] At present, the traditional insect prevention measures can only rely on spraying drugs on the surface of packaging paper, which has great limitations. The limitations of the surface spraying method are mainly: the amount of drugs is uncontrollable, it is easy to overspray, resulting in waste of raw materials and environmental pollution, the duration of the drugs is short, and the insect prevention effect is greatly reduced. Utility Model Content

[0004] The utility model aims to provide an insect-proof wrapping paper, which can make common wrapping paper have insect-proof property and good stability at the same time, and can also make the wrapping paper lighter and thinner.

[0005] The utility model provides an insect-proof packaging paper, comprising a base paper layer and a multi-layer coating layer, wherein the multi-layer coating layer is arranged on one surface of the base paper layer, and at least one layer of the coating layer is an insect-proof layer;

[0006] The multiple coating layers include a bottom coating layer, a middle coating layer and a top coating layer, and at least one layer among the bottom coating layer, the middle coating layer and the top coating layer is the insect-proof layer.

[0007] Compared with the prior art, the insect-proof packaging paper provided by the utility model has the following advantages:

[0008] The insect-proof wrapping paper provided by the utility model includes a base paper layer and a multi-layer coating layer, wherein the multi-layer coating layer is arranged on one of the surfaces of the base paper layer, and at least one coating layer is an insect-proof layer. That is to say, the utility model arranges an insect-proof layer on the surface of the base paper layer of the wrapping paper, so that the wrapping paper has a certain insect-proof effect. At the same time, in the process of further processing the base paper of the packaging cardboard, the insect-proof layer is directly formed on the base paper layer of the packaging cardboard as the surface layer, middle layer or bottom layer contained in the coating layer, so that ordinary wrapping paper has insect-proof properties and good stability. In addition, when the insect-proof layer can replace any one or more layers of the surface layer, middle layer or bottom layer in the coating layer, there is no need to add an additional insect-proof layer for insect-proofing. Therefore, the wrapping paper can also be made thinner, so that the wrapping paper can meet the needs of various thin wrapping papers.

[0009] As can be seen from the above, the insect-proof packaging paper provided by the utility model can make ordinary packaging paper have insect-proof properties and good stability, and can also make the packaging paper thinner. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0011] Figure 1 The figure is a schematic structural diagram of the insect-proof packaging paper according to an embodiment of the utility model.

[0012] Reference numerals:

[0013] 100-base paper layer, 200-coating layer, 210-bottom coating layer, 220-middle coating layer, 230-top coating layer, 300-antibacterial layer, 400-air purification layer, 500-waterproof layer. DETAILED DESCRIPTION

[0014] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail in conjunction with the embodiments below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0015] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0016] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.

[0017] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0018] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0019] With the rapid development of society, people are paying more and more attention to environmental protection and health. The hygienic conditions of various materials and products closely related to people's lives during storage and transportation are also receiving more and more attention. The packaging materials of these items can have insect-proof properties, which is an important component to ensure their hygienic conditions. As a commonly used environmentally friendly and recyclable packaging material, paper packaging has very important significance for the development of packaging paper with insect-proof properties.

[0020] Traditional insect-proofing measures can only rely on spraying drugs or using photocatalyst lamps, which has caused great limitations. When the external factors are harsh, they cannot cope well. In addition, spraying drugs on the surface of the outer packaging is not very stable in insect-proofing. It can only have insect-proofing performance for a short time and cannot achieve the expected effect.

[0021] The embodiment of the utility model provides an insect-proof wrapping paper, which solves the problem that the insect-proof wrapping paper in the prior art has poor stability and thick paper thickness, so that ordinary wrapping paper has insect-proof properties and good stability, and the wrapping paper can also be made thinner. It should be understood that the insect-proof wrapping paper can be kraft paper, chicken skin paper, paper bag paper, parchment paper, cellophane, tar paper, moisture-proof paper, gunpowder wrapping paper, neutral wrapping paper, translucent paper, rust-proof paper, oil-proof paper, food wrapping paper, paraffin paper, tea bag paper, red electric light cannon paper, vacuum aluminum-plated paper, composite paper or other types of paper, which are not limited here.

[0022] Figure 1 The structure diagram of the insect-proof packaging paper of the utility model is shown as follows: Figure 1As shown, the insect-proof packaging paper of the embodiment of the utility model comprises a packaging cardboard base paper layer 100 and a multi-layer coating layer 200. The multi-layer coating layer 200 is arranged on one surface of the base paper layer 100, and at least one coating layer 200 is an insect-proof layer.

[0023] The insect-proof wrapping paper provided by the utility model includes a base paper layer and a multi-layer coating layer, wherein the multi-layer coating layer is arranged on one of the surfaces of the base paper layer, and at least one coating layer is an insect-proof layer. That is to say, the utility model arranges an insect-proof layer on the surface of the base paper layer of the wrapping paper, so that the wrapping paper has a certain insect-proof effect. At the same time, in the process of further processing the base paper of the packaging cardboard, the insect-proof layer is directly formed on the base paper layer of the packaging cardboard as the surface layer, middle layer or bottom layer contained in the coating layer, so that ordinary wrapping paper has insect-proof properties and good stability. In addition, when the insect-proof layer can replace any one or more layers of the surface layer, middle layer or bottom layer in the coating layer, there is no need to add an additional insect-proof layer for insect-proofing. Therefore, the wrapping paper can also be made thinner, so that the wrapping paper can meet the needs of various thin wrapping papers.

[0024] It should be understood that the base paper layer has a first surface and a second surface relative to each other. The multi-layer coating layer 200 may be a bottom coating layer 210, a middle coating layer 220 and a top coating layer 230, and at least one of the bottom coating layer 210, the middle coating layer 220 and the top coating layer 230 is an insect-proof layer. The bottom coating layer 210, the middle coating layer 220 and the top coating layer 230 are sequentially distributed along the direction close to the first surface of the base paper layer, that is, the bottom coating layer 210 is formed on the first surface of the packaging cardboard base paper layer 100, the middle coating layer 220 is formed on the bottom coating layer 210, and the top coating layer 230 is formed on the middle coating layer 220.

[0025] In one example, in the first insect-proof packaging paper provided by the embodiment of the utility model, the bottom coating layer 210 , the middle coating layer 220 and the top coating layer 230 are all insect-proof layers.

[0026] In the second example, in the second insect-proof packaging paper provided by the embodiment of the utility model, the bottom coating layer 210 and the middle coating layer 220 are both insect-proof layers, and the top coating layer 230 is a coating layer.

[0027] In the third example, in the third insect-proof packaging paper provided by the embodiment of the utility model, the bottom coating layer 210 and the top coating layer 230 are both insect-proof layers, and the middle coating layer 220 is a coating layer.

[0028] In the fourth example, in the fourth insect-proof packaging paper provided by the embodiment of the utility model, the coating layer 220 and the surface coating layer 230 are both insect-proof layers, and the bottom coating layer 210 is a coating layer.

[0029] In the fifth example, the fifth insect-proof packaging paper provided by the embodiment of the utility model has a bottom coating layer 210 which is an insect-proof layer, and a middle coating layer 220 and a top coating layer 230 which are coating layers.

[0030] In the sixth example, the sixth insect-proof packaging paper provided by the embodiment of the utility model, wherein the coating layer 220 is an insect-proof layer, and the bottom coating layer 210 and the top coating layer 230 are both coating layers.

[0031] In the seventh example, the seventh insect-proof packaging paper provided by the embodiment of the utility model has a surface coating layer 230 that is an insect-proof layer, and a middle coating layer 220 and a bottom coating layer 210 that are coating layers.

[0032] That is to say, the insect-proof packaging paper provided by the embodiment of the utility model can set any one, two or three layers of the bottom coating layer, the middle coating layer and the top coating layer on the surface of the packaging cardboard base paper layer as insect-proof layers. The specific selection can be made according to actual needs and is not limited here.

[0033] Exemplarily, the insect-proof packaging paper of the embodiment of the utility model further includes an antibacterial layer 300, which is disposed on the second surface of the base paper layer 100. The antibacterial layer is disposed on the second surface of the base paper layer 100, so that the insect-proof packaging paper has a certain antibacterial property. When used as food packaging paper, it can not only prevent insects, but also be antibacterial, so that the shelf life of the food can be extended.

[0034] In one example, the insect-proof wrapping paper of the embodiment of the utility model further includes an air purification layer 400 and a waterproof layer 500, and the air purification layer 400 and the waterproof layer 500 are sequentially arranged on the surface of the antibacterial layer 300 along the second surface of the base paper layer 100. It should be understood that by arranging the air purification layer 400 on the surface of the antibacterial layer 300, the air outside the wrapping paper can be purified, so that the harmful substances in the air entering the inside of the wrapping paper through the wrapping paper are reduced, and the life of the packaged items can be further extended. By arranging the waterproof layer, the wrapping paper can have a certain degree of waterproofness, so that the water molecules in the external space can be isolated, so that the space inside the wrapping paper remains dry and impure, and the items inside the wrapping paper can be prevented from getting damp and changing in quality.

[0035] Exemplarily, the air purification layer 400 has purification through holes, and the purification through holes are filled with activated carbon material. By filling the purification through holes of the air purification layer 400 with activated carbon material, since the activated carbon material has a developed pore structure, good adsorption performance, high mechanical strength, and easy repeated regeneration, the adsorption capacity of the air purification layer 400 can be strong, thereby adsorbing harmful substances in the external environment more thoroughly.

[0036] Exemplarily, the insect-proof wrapping paper provided by the embodiment of the utility model, the insect-proof layer includes a mesh support layer and a slow-release microcapsule insect repellent provided in each grid of the mesh support layer. By designing the insect-proof layer into a mesh support layer structure, the slow-release microcapsule insect repellent can be evenly dispersed in each grid of the mesh support layer, so that the insect repellent of the insect-proof wrapping paper can be evenly filled, avoiding the part of the wrapping paper that does not play the role of insect repellent due to uneven filling of the insect repellent. Moreover, the wrapping paper with the insect-proof layer supported by the slow-release microcapsule insect repellent can not only play the role of packaging protection, but also make the application scenario of the wrapping paper unlimited.

[0037] Exemplarily, the gridded support layer of the embodiment of the utility model is a gridded carbon fiber support layer. That is, the gridded support layer is made of carbon fiber material. The gridded support layer made of carbon fiber material can improve the strength of the insect-proof layer, thereby further improving the paper strength of the insect-proof packaging paper. The carbon fiber material is very light in weight and can make the paper lighter.

[0038] In an optional manner, the mesh aperture of the mesh of the mesh support layer of the utility model embodiment is 40 mesh to 100 mesh. Setting the mesh aperture within this range can make the slow-release microcapsule insect repellent in the insect-proof layer more densely filled, thereby achieving a better insect-proof effect.

[0039] In an optional manner, the thickness of the insect-proof layer of the embodiment of the utility model is 30 μm to 50 μm. Therefore, the wrapping paper can be made thinner and lighter, so that the wrapping paper can meet various requirements for thin wrapping paper.

[0040] In an optional manner, the sustained-release microcapsule insect repellent of the embodiment of the utility model may include sustained-release microcapsules and insect repellents filled in the sustained-release microcapsules. For the insect repellent, it may include at least one of chlorpyrifos, naphthol insect repellents, carbamate insect repellents, and pyrethroid insect repellents. For the sustained-release microcapsules, it may include one or more of chitosan sustained-release microcapsules, sodium alginate sustained-release microcapsules, and modified polyurethane sustained-release microcapsules.

[0041] In one achievable manner, the bottom layer of the embodiment of the utility model is realized by coating the bottom coating slurry on the packaging cardboard base paper layer, the middle layer is realized by coating the middle coating slurry on the bottom layer, and the surface layer is realized by coating the surface coating slurry on the middle layer. Among them, at least one of the bottom coating slurry, the middle coating slurry and the surface coating slurry contains a slow-release microcapsule insect repellent. Whether one or more of the bottom coating slurry, the middle coating slurry and the surface coating slurry contains the slow-release microcapsule insect repellent of the utility model, the insect-proof packaging paper of the embodiment of the utility model can be obtained.

[0042] For example, if the above-mentioned base coating slurry, middle coating slurry and top coating slurry all contain slow-release microcapsule insect repellent, the first insect-proof packaging paper provided by the embodiment of the utility model can be obtained. If the above-mentioned base coating slurry and middle coating slurry contain slow-release microcapsule insect repellent, the second insect-proof packaging paper provided by the embodiment of the utility model can be obtained. If the above-mentioned base coating slurry and top coating slurry contain slow-release microcapsule insect repellent, the third insect-proof packaging paper provided by the embodiment of the utility model can be obtained. If the above-mentioned middle coating slurry and top coating slurry contain slow-release microcapsule insect repellent, the fourth insect-proof packaging paper provided by the embodiment of the utility model can be obtained. If the above-mentioned base coating slurry contains slow-release microcapsule insect repellent, the fifth insect-proof packaging paper provided by the embodiment of the utility model can be obtained. If the above-mentioned middle coating slurry contains slow-release microcapsule insect repellent, the sixth insect-proof packaging paper provided by the embodiment of the utility model can be obtained. If the above-mentioned top coating slurry contains slow-release microcapsule insect repellent, the seventh insect-proof packaging paper provided by the embodiment of the utility model can be obtained.

[0043] In an optional method, by adding a slow-release microcapsule insect repellent supported by the coating to the wrapping paper, since the slow-release microcapsules are protected by the wall material, the insect repellent will be slowly released outside the slow-release microcapsules and then slowly released into the environment. This can ensure that the concentration of the insect repellent in the environment is not too high and the toxicity is controllable, and can also ensure that the insect repellent effect of the wrapping paper is long-lasting and effective.

[0044] The second, fifth and sixth insect-proof packaging papers of the embodiments of the utility model all contain sustained-release microcapsule insect repellents in the bottom layer and / or middle layer. Since the middle layer and the bottom layer are located between the paper base and the surface layer, the middle layer and the bottom layer will not directly contact food or other substances, thereby avoiding the problem of sustained-release microcapsule insect repellents on the coating surface contaminating food or articles. When using the insect-proof packaging paper, there is no need to directly contact the sustained-release microcapsule insect repellent, thereby having good safety.

[0045] The above is only a specific implementation of the utility model. Obviously, various modifications and combinations can be made to it without departing from the spirit and scope of the utility model. Accordingly, this specification and the drawings are only exemplary illustrations of the utility model defined by the attached claims, and are deemed to have covered any and all modifications, changes, combinations or equivalents within the scope of the utility model. Obviously, those skilled in the art can make various changes and modifications to the utility model without departing from the spirit and scope of the utility model. In this way, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalents, the utility model is intended to include these changes and variations. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be covered within the scope of protection of the utility model. Therefore, the scope of protection of the utility model shall be based on the scope of protection of the claims.

Claims

1. An insect-proof packaging paper, characterized in that: It comprises a base paper layer and a multi-layer coating layer, wherein the multi-layer coating layer is arranged on one surface of the base paper layer, and at least one layer of the coating layer is an insect-proof layer; The multiple coating layers include a bottom coating layer, a middle coating layer and a top coating layer, and at least one layer among the bottom coating layer, the middle coating layer and the top coating layer is the insect-proof layer.

2. The insect-proof packaging paper according to claim 1, characterized in that: The bottom coating layer, the middle coating layer and the top coating layer are sequentially distributed on one surface of the base paper layer.

3. The insect-proof packaging paper according to claim 1, characterized in that: The insect-proof packaging paper also includes an antibacterial layer, which is arranged on another surface of the base paper layer.

4. The insect-proof packaging paper according to claim 3, characterized in that: The insect-proof packaging paper further comprises an air purification layer and a waterproof layer, and the air purification layer and the waterproof layer are sequentially arranged on the surface of the antibacterial layer.

5. The insect-proof packaging paper according to claim 4, characterized in that: The air purification layer has purification through holes, and the purification through holes are filled with activated carbon material.

6. The insect-proof packaging paper according to claim 1, characterized in that: The insect-proof layer comprises a mesh support layer and a slow-release microcapsule insect-proof agent arranged in each grid of the mesh support layer.

7. The insect-proof packaging paper according to claim 6, characterized in that: The mesh support layer is a gridded carbon fiber support layer.

8. The insect-proof packaging paper according to claim 7, characterized in that: The mesh of the mesh support layer has a pore size of 40-100 meshes.

9. The insect-proof packaging paper according to any one of claims 1 to 8, characterized in that: The thickness of the insect-proof layer is 30 μm to 50 μm.

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