Paper-plastic composite bag

Abstract

The utility model discloses a paper-plastic composite bag which comprises a main bag body made of a composite base material, the composite base material comprises a kraft paper layer and a plastic layer which are attached to each other, at least one outer surface of the main bag body is provided with a label layer and a protective layer, the label layer can form patterns or characters under the action of external force, and the protective layer is arranged on the outer surface of the main bag body. The protective layer covers the label layer, and the protective layer can be partially or completely separated from the main bag body under the action of external force, so that the label layer is exposed. According to the paper-plastic composite bag, the main bag body, the label layer and the protective layer are combined, the independent and individualized drawing or writing requirement is met on the bag body, the individualized paper-plastic composite bag is provided for use, the individual use requirement is met, and meanwhile personal belongings can be conveniently identified.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of packing bag, concretely relates to a paper-plastic composite bag. BACKGROUND

[0002] Paper-plastic composite bag is one of common packing bags, which is composed of plastic and kraft paper, such as the anti-corrosion paper-plastic composite food packing bag disclosed in patent No. CN212654780U, which comprises a bag body composed of a raw paper layer and a film layer sequentially adhered from outside to inside. At present, most paper-plastic composite bags are used in the food field. During use, it is found that the paper-plastic composite bag has high strength and can be repeatedly used, and the appearance is relatively beautiful. Therefore, it is necessary to develop the daily use function of the paper-plastic composite bag to increase its use occasions and meet the personalized use needs of the market. SUMMARY

[0003] The utility model discloses in order to avoid the deficiency that exists in prior art, provide a kind of paper-plastic composite bag for daily use.

[0004] The utility model discloses the technical problem that is solved adopts following technical scheme: a kind of paper-plastic composite bag, including the main bag body made of composite substrate, the composite substrate includes the kraft paper layer and plastic layer that are pasted, at least one outer surface of the main bag body is provided with label layer and protective layer, the label layer can form pattern or character under the action of external force, the protective layer covers label layer inside, and the protective layer can partially or completely separate from main bag body under the action of external force, and thereby expose label layer.

[0005] In several embodiments, one side edge of the protective layer is fixedly connected to the main bag body, and pressure-sensitive adhesive is provided at other edge positions of the protective layer, and the protective layer is separably bonded to the main bag body by the pressure-sensitive adhesive.

[0006] In several embodiments, the protective layer is transparent.

[0007] In several embodiments, the label layer includes a base layer, a color printing layer and an ink layer, the base layer is fixedly bonded to the main bag body, the color printing layer is provided on one surface of the base layer, the ink layer is provided on the color printing layer, and the ink layer can be separated from the color printing layer at a position subjected to external force.

[0008] In several embodiments, the label layer is pressure-sensitive paper, and the pressure-sensitive paper is fixedly bonded to the main bag body.

[0009] In several embodiments, the label layer does not completely cover the outer surface of the main bag body.

[0010] In several embodiments, a handle is provided at a bag opening position of the main bag body.

[0011] The beneficial effects of this utility model are as follows:

[0012] This utility model combines the main bag body, label layer, and protective layer, providing the need for independent and personalized drawing or writing on the bag body, offering a personalized paper-plastic composite bag for use, meeting individual usage needs, and also facilitating the identification of personal items. Attached Figure Description

[0013] The accompanying drawings described herein are for illustrative purposes only and do not represent all possible implementations, nor should they be considered as limiting the scope of this invention.

[0014] Figure 1 This is a schematic front view of the paper-plastic composite bag in this embodiment;

[0015] Figure 2 yes Figure 1 A partial structural diagram, excluding the protective layer;

[0016] Figure 3 yes Figure 1 A schematic diagram showing the protective layer in the open state. Detailed Implementation

[0017] The embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present utility model, but not all embodiments.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in conjunction with the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] Example 1

[0020] like Figures 1-3 As shown, the paper-plastic composite bag in this embodiment includes a main bag body 10 made of a composite substrate. The composite substrate includes at least two layers of kraft paper and a plastic layer that are bonded together to improve the load-bearing capacity of the bag body. A handle 40 is provided at the opening of the main bag body 10 for easy carrying. It can be used as an everyday shopping bag or a decorative bag.

[0021] Specifically, a label layer 20 and a protective layer 30 are provided on at least one outer surface of the main bag body 10. The label layer 20 can form patterns or text under the action of external force. The protective layer 30 covers the label layer 20 and can be partially or completely detached from the main bag body 10 under the action of external force, thereby exposing the label layer 20.

[0022] One edge of the protective layer 30 is fixedly connected to the main bag body 10, which can be done by adhesive or sewing. Pressure-sensitive adhesive 31 is provided on the other edges of the protective layer 30. The protective layer 30 is detachably bonded to the main bag body 10 by the pressure-sensitive adhesive 31. The edges of the protective layer 30 do not come into contact with the label layer 20. That is, the protective layer 30 is larger than the label layer 20. The protective layer 30 can be made of transparent plastic film to prevent the label layer 20 from being accidentally damaged.

[0023] Of course, other edges of the protective layer 30 can also be detachably connected to the main bag body 10 through Velcro, snap fasteners, or other means.

[0024] Here, the label layer 20 does not completely cover the outer surface of the main bag body 10, but is generally located in the middle of one outer surface of the main bag body 10. Of course, its area and position can be adjusted according to market demand and are not limited to the above description.

[0025] The label layer 20 includes a base layer, a color printing layer, and an ink layer. The base layer is bonded and fixed to the main bag body 10. The base layer can be made of ordinary paper. The color printing layer is coated on one surface of the base layer. The ink layer is coated on the color printing layer. The parts of the ink layer subjected to external force can be detached from the color printing layer. After the protective layer 30 is partially peeled off, the ink layer can be scraped off at the desired location using a hard solid tool such as a ruler, thereby exposing the underlying color printing layer, which can be used for personalized drawing and writing to meet personalized usage needs.

[0026] Example 2

[0027] In this embodiment, the label layer 20 is pressure-sensitive paper, which is directly bonded to the main bag body 10. Due to the characteristics of pressure-sensitive paper, corresponding patterns and text can be made by engraving on it with a hard solid tool.

[0028] All descriptions herein may be presented in any suitable order. Any and all instances used, or exemplary language provided herein (such as "for example"), are merely for the purpose of better illustrating the invention and are not intended to limit the scope of the invention, except as provided in the claims. The language used in the detailed description should not be construed as indicating any essential elements for practicing the invention beyond the claims.

[0029] This invention includes all improvements encompassed by the spirit and scope of the invention as defined in the claims. Furthermore, unless otherwise stated or there is a clear contradiction in the content, this invention includes any of the foregoing elements and all possible variations thereof.

Claims

1. A paper-plastic composite bag comprising a main bag body (10) made of a composite base material, the composite base material comprising a kraft paper layer and a plastic layer which are laminated together, characterized in that, The main bag body (10) is provided with a label layer (20) and a protective layer (30) on at least one outer surface, the label layer (20) can form a pattern or characters under the action of external force, the protective layer (30) covers the label layer (20) inside, and the protective layer (30) can be separated from the main bag body (10) partially or completely under the action of external force, and thus the label layer (20) is exposed.

2. A paper-plastic composite bag according to claim 1, characterized in that One side edge of the protective layer (30) is fixedly connected with the main bag body (10), and the other edge positions of the protective layer (30) are provided with pressure-sensitive adhesive (31), and the protective layer (30) is separably bonded with the main bag body (10) through the pressure-sensitive adhesive (31).

3. A paper-plastic composite bag according to claim 2, characterized in that The protective layer (30) is transparent.

4. A paper-plastic composite bag according to claim 1, characterized in that The label layer (20) comprises a base layer, a color printing layer and an ink layer, the base layer is fixedly bonded with the main bag body (10), the color printing layer is arranged on one surface of the base layer, and the ink layer is arranged on the color printing layer, and the ink layer can be separated from the color printing layer at the position subjected to external force.

5. A paper-plastic composite bag according to claim 1, characterized in that The label layer (20) is pressure-sensitive paper, and the pressure-sensitive paper is fixedly bonded with the main bag body (10).

6. A paper-plastic composite bag according to claim 1, characterized in that The label layer (20) does not completely cover the outer surface of the main bag body (10).

7. A paper-plastic composite bag according to claim 1, characterized in that The main bag body (10) is provided with a handle (40) at the bag opening position.

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