Degradable packaging paper

Abstract

The utility model relates to the field of packaging paper, in particular to degradable packaging paper which comprises a base material layer, a fiber layer and an aluminum foil layer, a moisture absorption layer is arranged on the base material layer, and sodium trimetaphosphate powder is arranged on the moisture absorption layer. The fiber layer is pressed at the bottom of the moisture absorption layer and limits the sodium trimetaphosphate powder on the moisture absorption layer; the inner side of the aluminum foil layer is provided with a reinforcing rib, and when the aluminum foil layer is pressed on the fiber layer, the reinforcing rib penetrates through the fiber layer, so that the reinforcing rib and the fiber layer are arranged in a mutual winding mode, and according to the degradable packaging paper disclosed by the utility model, through mutual winding of the fiber layer and the reinforcing rib, the connection strength of the packaging paper is enhanced; and the fiber layer and the moisture absorption layer can limit the sodium trimetaphosphate powder at the same time, so that the packaging paper has certain moisture absorption performance, and the packaging paper can still have good performance after being wetted.

Description

Technical Field

[0001] The utility model relates to the field of packaging paper, and more particularly to degradable packaging paper. Background Art

[0002] As online shopping has become the mainstream, goods need to be wrapped in boxes and then mailed to users. Therefore, wrapping paper has been widely used at present.

[0003] However, in the process of transporting goods, it is inevitable to encounter rainy weather. The packaging boxes made of current wrapping paper are easily torn by couriers during transportation after being wetted by rain, which will cause the items to be exposed. In order to solve this problem, people generally coat the wrapping paper with a waterproof layer or use some difficult-to-degrade materials to produce wrapping paper. However, difficult-to-degrade wrapping paper will make it difficult to degrade, which will have an impact on the environment.

[0004] Therefore, it is necessary to propose a degradable packaging paper that solves the above problems. Utility Model Content

[0005] The present invention aims to overcome at least one defect (shortcoming) of the above-mentioned prior art and provides a degradable wrapping paper.

[0006] In order to solve the above technical problems, the technical solution of the present utility model is as follows: a degradable wrapping paper, comprising a substrate layer, a fiber layer and an aluminum foil layer;

[0007] A moisture absorbing layer is provided on the substrate layer, and sodium trimetaphosphate powder is provided on the moisture absorbing layer;

[0008] The fiber layer is pressed onto the bottom of the moisture absorbing layer, and the fiber layer limits the sodium trimetaphosphate powder on the moisture absorbing layer;

[0009] The inner side of the aluminum foil layer is provided with reinforcing ribs. When the aluminum foil layer is pressed onto the fiber layer, the reinforcing ribs pass through the fiber layer, so that the reinforcing ribs and the fiber layer are entangled with each other. The entanglement of the fiber layer and the reinforcing ribs strengthens the connection strength of the wrapping paper, thereby improving the tensile properties of the wrapping paper. The fiber layer can also limit the sodium trimetaphosphate powder together with the hygroscopic layer, so that the wrapping paper has certain hygroscopic properties, which can effectively strengthen the wrapping paper and ensure that it still has good performance after being wetted.

[0010] Furthermore, the reinforcing ribs are polycaprolactone threads, and the fiber layer is a grid-like hollow wood fiber yarn. The mutual entanglement of the polycaprolactone threads and the grid-like hollow wood fiber yarn can enhance the connection strength of the wrapping paper. In addition, the moisture absorption effect of the moisture-absorbing layer and the sodium trimetaphosphate powder prevents the wrapping paper from being easily torn after being wetted.

[0011] Furthermore, a starch resin film layer is provided on the outer side of the aluminum foil layer. In practical applications, other film layers may be used to replace the aluminum foil layer, which are all within the protection scope of the present utility model.

[0012] Furthermore, a polyvinyl alcohol film is provided on the outer side of the starch resin film layer. The provision of the polyvinyl alcohol film can facilitate degradation while also protecting the starch resin film layer.

[0013] Furthermore, the substrate layer is made of kraft paper. In practical applications, the substrate layer can also be made of other materials, which are all within the protection scope of the present utility model.

[0014] Compared with the prior art, the beneficial effects of the technical solution of the utility model are:

[0015] The degradable wrapping paper disclosed by the utility model strengthens the connection strength of the wrapping paper by the mutual entanglement of the fiber layer and the reinforcing ribs, so that the tensile performance of the wrapping paper is better. The fiber layer can also limit the sodium trimetaphosphate powder together with the moisture-absorbing layer, so that the wrapping paper has a certain moisture-absorbing performance, which can effectively strengthen the wrapping paper and still have good performance after being wetted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the degradable wrapping paper in the utility model.

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the degradable packaging paper in the utility model.

[0018] In the figure, 1 is the base material layer, 2 is the fiber layer, 3 is the aluminum foil layer, 4 is the moisture absorption layer, 5 is the sodium trimetaphosphate powder, 6 is the reinforcing rib, 7 is the starch resin film layer, and 8 is the polyvinyl alcohol film. DETAILED DESCRIPTION

[0019] The accompanying drawings are for illustrative purposes only and are not to be construed as limitations on this patent. To better illustrate this embodiment, some components of the accompanying drawings may be omitted, enlarged, or reduced in size, and do not represent the actual dimensions of the product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted from the accompanying drawings.

[0020] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installation" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, which can be considered as internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model. The technical solution of this utility model is further described below with reference to the accompanying drawings and embodiments.

[0021] like Figure 1-2 As shown, a degradable wrapping paper comprises a base material layer 1, a fiber layer 2 and an aluminum foil layer 3; a hygroscopic layer 4 is provided on the base material layer, and sodium trimetaphosphate powder 5 is provided on the hygroscopic layer; the fiber layer is pressed onto the bottom of the hygroscopic layer, and the fiber layer limits the sodium trimetaphosphate powder on the hygroscopic layer; reinforcing ribs 6 are provided on the inner side of the aluminum foil layer, and when the aluminum foil layer is pressed onto the fiber layer, the reinforcing ribs pass through the fiber layer, so that the reinforcing ribs and the fiber layer are entangled with each other, and the mutual entanglement of the fiber layer and the reinforcing ribs strengthens the connection strength of the wrapping paper, so that the tensile performance of the wrapping paper is better, and the fiber layer can also limit the sodium trimetaphosphate powder together with the hygroscopic layer, so that the wrapping paper has certain hygroscopic performance, which can effectively strengthen the wrapping paper and still have good performance after being wetted.

[0022] In the present invention, the reinforcing ribs are polycaprolactone threads, and the fiber layer is a grid-shaped hollow wood fiber yarn. The mutual entanglement of the polycaprolactone threads and the grid-shaped hollow wood fiber yarn can enhance the connection strength of the wrapping paper. In addition, the moisture-absorbing layer and the sodium trimetaphosphate powder absorb moisture so that the wrapping paper will not be easily torn after being wetted. A starch resin film layer 7 is provided on the outside of the aluminum foil layer. In actual applications, other film layers can also be used to replace it, which are all within the protection scope of the present invention. A polyvinyl alcohol film 8 is provided on the outside of the starch resin film layer. The setting of the polyvinyl alcohol film can facilitate degradation while also protecting the starch resin film layer. The base material layer is made of kraft paper material. In actual applications, the base material layer can also be made of other materials, which are all within the protection scope of the present invention.

[0023] Example

[0024] In this embodiment, sodium trimetaphosphate powder is provided on the hygroscopic layer; the fiber layer is pressed onto the bottom of the hygroscopic layer, and the fiber layer limits the sodium trimetaphosphate powder on the hygroscopic layer; reinforcing ribs are provided on the inner side of the aluminum foil layer, and when the aluminum foil layer is pressed onto the hygroscopic layer, the reinforcing ribs pass through the fiber layer, so that the reinforcing ribs and the fiber layer are entangled with each other. The mutual entanglement of the fiber layer and the reinforcing ribs strengthens the connection strength of the wrapping paper, so that the tensile properties of the wrapping paper are better, and the fiber layer can also limit the sodium trimetaphosphate powder together with the hygroscopic layer, so that the wrapping paper has certain hygroscopic properties, which can effectively strengthen the wrapping paper and still have good performance after being wetted, and the wrapping paper will not be easily torn.

[0025] In the figure, the positional relationship is described only for illustrative purposes and should not be understood as a limitation on this patent. Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A degradable wrapping paper comprising a substrate layer, a fiber layer and an aluminum foil layer, characterized in that: A moisture absorbing layer is provided on the substrate layer, and sodium trimetaphosphate powder is provided on the moisture absorbing layer; The fiber layer is pressed onto the bottom of the moisture absorbing layer, and the fiber layer limits the sodium trimetaphosphate powder on the moisture absorbing layer; The inner side of the aluminum foil layer is provided with reinforcing ribs. When the aluminum foil layer is pressed onto the fiber layer, the reinforcing ribs pass through the fiber layer so that the reinforcing ribs and the fiber layer are intertwined.

2. The degradable wrapping paper according to claim 1, characterized in that: The reinforcing ribs are polycaprolactone thin wires, and the fiber layer is a grid-shaped hollow wood fiber yarn.

3. The degradable wrapping paper according to claim 1, characterized in that: A starch resin film layer is provided on the outer side of the aluminum foil layer.

4. The degradable wrapping paper according to claim 3, characterized in that: A polyvinyl alcohol film is provided on the outer side of the starch resin film layer.

5. The degradable wrapping paper according to claim 1, characterized in that: The base material layer is made of kraft paper material.

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