A laser paper with an aluminum foil layer

Abstract

The utility model discloses a kind of laser paper with aluminium foil layer, including the plastic layer, paper base layer, thin glue adhesion layer, holographic pattern aluminium foil layer, protective film layer distributed sequentially from inside to outside, the plastic layer includes combinedly connected first plastic layer and second plastic layer, the paper base layer is equipped with integral convex paperboard, the convex paperboard includes side paperboard and center paperboard;Through the paper base layer and the first plastic layer and the second plastic layer of designed, paper base layer and the first plastic layer and the second plastic layer are multilayer composite structure, the multilayer composite structure has the environmental protection of paper and the waterproofness of plastic, paper base layer and the first plastic layer and the second plastic layer are combination type structure of glue bonding, under the action of high temperature environment or alcohol or hot melt glue remover, eliminate glue, facilitate paper base layer and the first plastic layer and the first plastic layer and the second plastic layer separate.

Description

Technical Field

[0001] This utility model belongs to the field of laser paper technology, specifically relating to a laser paper with an aluminum foil layer. Background Technology

[0002] Laser paper, also known as holographic paper, is a type of paper with special optical effects. These effects are achieved by using laser holography to imprint tiny, fine embossed patterns or grating structures onto the paper surface. Key features include a rainbow effect on the paper surface and high reflectivity due to the aluminum foil coating. It typically consists of a base layer, an aluminum coating layer, and a laser-imprinted holographic pattern layer. It is mainly used for packaging decoration, printing and labeling, handicrafts and decorations, etc. Document CN209779338U discloses a method for manufacturing laser paper.

[0003] The existing base layer of laser paper is mainly paper or plastic. Paper base is more environmentally friendly, but it is not waterproof and its application is limited. Plastic base is waterproof, but plastic cannot be degraded or takes a long time to degrade during recycling, which is not environmentally friendly. Therefore, the existing base layer of laser paper has the defects of not being waterproof and not being environmentally friendly.

[0004] Existing laser paper has the problem of lacking a waterproof and environmentally friendly base layer design. To address this, this application proposes a laser paper with an aluminum foil layer. Utility Model Content

[0005] The purpose of this invention is to provide a laser paper with an aluminum foil layer to solve the problem mentioned in the background art that the laser paper lacks a waterproof and environmentally friendly base layer design.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a laser paper with an aluminum foil layer, comprising a plastic layer, a paper base layer, a thin adhesive layer, a holographic pattern aluminum foil layer, and a protective film layer distributed sequentially from the inside out. The plastic layer includes a first plastic layer and a second plastic layer connected together. An integral convex cardboard is provided on the paper base layer, which includes side cardboard and a center cardboard.

[0007] Preferably, the surface of the first plastic layer is provided with a shaped groove that cooperates with the convex cardboard. The shaped groove includes a first glue groove c and a second glue groove d. The orthographic projection of the first glue groove c is rectangular, and the orthographic projection of the second glue groove d is cylindrical.

[0008] Preferably, the first glue tank c and the second glue tank d are filled with hot melt adhesive b.

[0009] Preferably, the side cardboard has an "L" shaped cross-section, and the center cardboard has a mesh shape.

[0010] Preferably, the thickness of the paper base layer is the same as the thickness of the first plastic layer.

[0011] Preferably, half the thickness of the first plastic layer is the same as the thickness of the second plastic layer.

[0012] Preferably, a "V"-shaped filling groove is formed on the opposing surfaces of the first plastic layer and the second plastic layer, and the filling groove is filled with hot melt adhesive a.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, the paper base layer, the first plastic layer and the second plastic layer are designed to form a multi-layer composite structure, which has the environmental friendliness of paper and the waterproofness of plastic.

[0015] 2. In this utility model, the combined paper base layer, the first plastic layer and the second plastic layer are designed to eliminate glue in a high-temperature environment or under the action of alcohol or hot melt adhesive remover, which facilitates the separation of the paper base layer and the first plastic layer as well as the first plastic layer and the second plastic layer. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 For the present utility model Figure 1 Enlarged structural diagram of section A in the middle;

[0018] Figure 3 This is a partial structural diagram of the unfolded paper base layer of this utility model;

[0019] Figure 4 This is a cross-sectional view of the first plastic layer of this utility model;

[0020] In the diagram: 1. Protective film layer; 2. Holographic pattern aluminum foil layer; 3. Thin adhesive layer; 4. Paper base layer; 5. Raised cardboard; 6. First plastic layer; 7. Second plastic layer; 8. Filling groove; 51. Side cardboard; 52. Center cardboard. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 4 This utility model provides a technical solution: a laser paper with an aluminum foil layer, comprising, from the inside out, a plastic layer, a paper base layer 4, a thin adhesive layer 3, a holographic pattern aluminum foil layer 2, and a protective film layer 1. The plastic layer includes a first plastic layer 6 and a second plastic layer 7 connected in combination. An integrally formed convex cardboard 5 is provided on the paper base layer 4. The laser paper of this application has a holographic pattern aluminum foil layer 2, which can reflect light. This application designs a multi-layer composite structure of the paper base layer 4, the first plastic layer 6, and the second plastic layer 7. The paper base layer 4 is pressed together with the first plastic layer 6 and the second plastic layer 7. The multi-layer composite structure of the second plastic layer 7 combines the environmental friendliness of paper with the waterproofness of plastic. The first plastic layer 6 and the second plastic layer 7, bonded together by adhesive, are a modular structure that can be disassembled for easy recycling. The convex cardboard 5 includes side cardboard 51 and a central cardboard 52. When the paper base layer 4 is connected to the first plastic layer 6 and the second plastic layer 7, the convex cardboard 5 is inserted into the interior of the first plastic layer 6 and bonded by hot melt adhesive b. The hot melt adhesive b permeates through the mesh-like central cardboard 52, and the cured hot melt adhesive b fixes the central cardboard 52, ensuring a stable bond between the paper base layer 4 and the first plastic layer 6.

[0023] In this embodiment, the surface of the first plastic layer 6 is provided with a shaped groove that mates with the convex cardboard 5. The shaped groove includes a first adhesive groove c and a second adhesive groove d. The orthographic projection of the first adhesive groove c is rectangular, and the orthographic projection of the second adhesive groove d is cylindrical. The first adhesive groove c and the second adhesive groove d are filled with hot melt adhesive b. The convex cardboard 5 is inserted into the first plastic layer 6, and the hot melt adhesive b firmly holds the convex cardboard 5 in place. When the hot melt adhesive b is subjected to a certain high temperature, or comes into contact with alcohol or hot melt adhesive remover, the hot melt adhesive b will be eliminated, thereby facilitating the separation of the convex cardboard 5 from the first plastic layer 6 and facilitating recycling operations.

[0024] In this embodiment, the side cardboard 51 has an "L" shaped cross-section, and the central cardboard 52 has a mesh shape, increasing the nodes where the hot melt adhesive b and the central cardboard 52 are cured.

[0025] In this embodiment, the thickness of the paper base layer 4 is the same as the thickness of the first plastic layer 6, and half the thickness of the first plastic layer 6 is the same as the thickness of the second plastic layer 7. The specific thicknesses of the paper base layer 4, the first plastic layer 6, and the second plastic layer 7 can be designed according to actual conditions. The first plastic layer 6 and the second plastic layer 7 serve to support the paper base layer 4.

[0026] In this embodiment, a "V"-shaped filling groove 8 is provided on the opposing surfaces of the first plastic layer 6 and the second plastic layer 7. The filling groove 8 is filled with hot melt adhesive a. When the hot melt adhesive a cures, the hot melt adhesive a in the opposing filling groove 8 of the first plastic layer 6 and the second plastic layer 7 cures into an "X"-shaped structure, which increases the stability of the connection between the first plastic layer 6 and the second plastic layer 7.

[0027] Working principle and usage process of this utility model:

[0028] The laser paper of this application has a holographic pattern aluminum foil layer 2 that can reflect light;

[0029] This application designs a multi-layer composite structure consisting of a paper base layer 4, a first plastic layer 6, and a second plastic layer 7. This multi-layer composite structure combines the environmental friendliness of paper with the waterproofness of plastic. The first plastic layer 6 and the second plastic layer 7, which are bonded together with adhesive, are a modular structure that can be disassembled to facilitate recycling processes by other recycling equipment.

[0030] When the paper base layer 4 is connected to the first plastic layer 6 and the second plastic layer 7, the convex cardboard 5 is inserted into the interior of the first plastic layer 6 and bonded by hot melt adhesive b. The hot melt adhesive b passes through the mesh central cardboard 52, and the cured hot melt adhesive b fixes the central cardboard 52, ensuring the stability of the bond between the paper base layer 4 and the first plastic layer 6.

[0031] The hot melt adhesive a in the opposing filling groove 8 of the first plastic layer 6 and the second plastic layer 7 is cured into an "X" shaped structure, which increases the stability of the connection between the first plastic layer 6 and the second plastic layer 7.

[0032] When recycling the base layer of laser paper, hot melt adhesive a and hot melt adhesive b are subjected to a certain high temperature, or come into contact with alcohol or hot melt adhesive remover. The hot melt adhesive a and hot melt adhesive b will be eliminated, which will facilitate the separation of the convex cardboard 5 from the first plastic layer 6 and facilitate the recycling operation.

[0033] In summary, the laser paper of this application has a waterproof and environmentally friendly base layer design. This application designs a multi-layer composite structure of paper base layer 4, first plastic layer 6, and second plastic layer 7. This multi-layer composite structure has the environmental friendliness of paper and the waterproofness of plastic. The paper base layer 4, first plastic layer 6, and second plastic layer 7 are combined structures, which can eliminate glue under high temperature environment or the action of alcohol or hot melt adhesive remover, making it easy to separate the paper base layer 4, first plastic layer 6, and second plastic layer 7.

[0034] Although embodiments of the present invention have been shown and described (see the detailed description above), 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 type of laser paper with an aluminum foil layer, characterized in that: It includes a plastic layer, a paper base layer (4), a thin adhesive layer (3), a holographic pattern aluminum foil layer (2), and a protective film layer (1) distributed from the inside out. The plastic layer includes a first plastic layer (6) and a second plastic layer (7) connected together. The paper base layer (4) is provided with an integral convex cardboard (5), which includes side cardboard (51) and a center cardboard (52).

2. The laser paper with an aluminum foil layer according to claim 1, characterized in that: The surface of the first plastic layer (6) is provided with a shaped groove that cooperates with the convex cardboard (5). The shaped groove includes a first glue groove c and a second glue groove d. The orthographic projection of the first glue groove c is rectangular, and the orthographic projection of the second glue groove d is cylindrical.

3. The laser paper with an aluminum foil layer according to claim 2, characterized in that: The first glue tank c and the second glue tank d are filled with hot melt adhesive b.

4. The laser paper with an aluminum foil layer according to claim 1, characterized in that: The side cardboard (51) has an "L" shaped cross-section, and the center cardboard (52) has a mesh shape.

5. The laser paper with an aluminum foil layer according to claim 1, characterized in that: The thickness of the paper base layer (4) is the same as the thickness of the first plastic layer (6).

6. The laser paper with an aluminum foil layer according to claim 1, characterized in that: The thickness of the first plastic layer (6) is half the thickness of the second plastic layer (7).

7. The laser paper with an aluminum foil layer according to claim 1, characterized in that: The first plastic layer (6) and the second plastic layer (7) are respectively provided with "V" shaped filling grooves (8) on their opposing surfaces, and the filling grooves (8) are filled with hot melt adhesive a.

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