Double-coated waterproof laser packaging material paper

Abstract

The utility model discloses a double film waterproof laser package material paper, which comprises, from bottom to top, a substrate layer, a first composite glue layer, a laser layer, a second composite glue layer and a double-sided film protective layer; the laser layer comprises, from bottom to top, a stripping layer, a laser information layer and a barrier layer; the double-sided film protective layer comprises an outer protective film attached to the outer layer of the second composite glue layer and an inner protective film attached to the substrate layer on the side away from the first composite glue layer. The packaging paper material has good waterproofness, high barrier property, durability and persistence, and its functionality is increased, thus providing better packaging effect in application.

Description

Technical Field

[0001] This utility model relates to the field of packaging materials technology, specifically to a double-coated waterproof laser packaging material paper. Background Technology

[0002] Laser packaging materials are widely used in the high-end packaging market due to their stunning visual effects and excellent anti-counterfeiting features. Traditional laser packaging materials are typically produced using transfer or direct plating methods, which have the following technical drawbacks:

[0003] 1. Poor waterproofing and moisture resistance: Traditional laser-plated aluminum layers or multi-layer oxide coatings (such as SiOx, AlO) x The material itself has microscopic pinholes, and its thin-layer structure is prone to cracking when bent or rubbed, allowing moisture and oxygen to pass through easily. This results in poor barrier performance and affects the shelf life of the contents.

[0004] 2. Insufficient durability: The surface laser effect layer (usually an aluminum plating layer and a clear varnish layer) is directly exposed and is easily peeled off or damaged by friction and scratches, affecting the appearance and anti-counterfeiting effect.

[0005] 3. Environmental and health risks: Some inks and adhesives that use PVC or contain benzene solvents do not meet increasingly stringent environmental and food contact safety standards.

[0006] 4. Limited functionality: It only has basic decorative and anti-counterfeiting functions, and its performance is difficult to guarantee in complex logistics environments and harsh storage conditions (such as freezing, high temperature and high humidity).

[0007] Therefore, in order to correct the above-mentioned defects, we propose a double-coated waterproof laser packaging material paper. Utility Model Content

[0008] The technical problem solved by this utility model is to provide a double-coated waterproof laser packaging material paper.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a double-coated waterproof laser packaging material paper, which, from bottom to top, includes a substrate layer, a first composite adhesive layer, a laser layer, a second composite adhesive layer, and a double-sided coated protective layer.

[0010] The laser layer comprises, from bottom to top, a stripping layer, a laser information layer, and a barrier layer;

[0011] The double-sided protective film includes an outer protective film attached to the outer layer of the second composite adhesive layer and an inner protective film attached to the side of the substrate layer facing away from the first composite adhesive layer.

[0012] Furthermore, the laser layer is divided into upper and lower parts, with a flexible circuit board layer and a light-emitting layer between the upper and lower parts. The flexible circuit board layer is attached to the first composite adhesive layer, and the light-emitting layer is attached to the flexible circuit board layer.

[0013] The flexible circuit board layer is connected to a connecting wire, which in turn connects to a control box containing a microcontroller and a button battery.

[0014] Furthermore, the light-emitting layer includes a plurality of LED beads, which are encapsulated on a flexible circuit board layer by insulating adhesive.

[0015] Furthermore, the substrate layer is made of either paper or plastic film.

[0016] Furthermore, the outer protective film is made of either biaxially oriented polypropylene film or biaxially oriented polyester film, and the inner protective film is made of either cast polypropylene film or polyethylene film.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the packaging paper material in this utility model has excellent waterproofness, high barrier properties, durability and longevity, and its functionality is increased, resulting in better packaging effect when applied. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structural composition of this utility model;

[0019] Figure 2 This is a schematic diagram of the laser layer structure in this utility model;

[0020] Figure 3 This is a schematic diagram of the light-emitting layer structure in this utility model;

[0021] Figure 4 This is a schematic diagram of the flexible circuit board layer structure in this utility model;

[0022] Figure 5 This is a schematic diagram of the overall main structure of this utility model. Detailed Implementation

[0023] 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.

[0024] This utility model provides a technical solution:

[0025] Please see Figure 1-5 A double-coated waterproof holographic packaging material paper includes, from bottom to top, a substrate layer 1, a first composite adhesive layer 2, a holographic layer 3, a second composite adhesive layer 7, and a double-sided protective layer. The substrate layer 1 serves as the material's support and can be selected from one of the following: paper (such as white cardboard, grey-backed white board paper), plastic film (such as BOPP, BOPET, BOPA, CPP), or biodegradable materials (such as PLA film, PBAT film). The thickness is 20-150 μm.

[0026] The first composite adhesive layer 2 uses environmentally friendly solvent-free polyurethane adhesive or water-based adhesive, with a dry coating weight of 1.0-3.0 g / m². 2 This layer firmly bonds the substrate layer to the subsequent functional layers. The second composite adhesive layer 7 also uses environmentally friendly solvent-free polyurethane adhesive or water-based adhesive, with a coating dry weight of 1.5-3.5 g / m². 2 This layer is key to achieving the "double-coating" structure and deep waterproofing.

[0027] The laser layer 3 comprises, from bottom to top, a release layer 4, a laser information layer 11, and a barrier layer 12. The release layer 4 is coated on a PET temporary base film for subsequent transfer. A fine laser pattern is formed on the release layer 4 by molding. The barrier layer 12 is deposited on the laser information layer by vacuum deposition and is made of aluminum and silicon dioxide (SiO2). x ) or aluminum oxide (AlOx). When using silicon oxide or aluminum oxide, the material exhibits high transparency and can display the underlying laser effect, with a layer thickness of 30-50nm;

[0028] Preparation of laser transfer film: A release layer, a laser pattern, a barrier layer, and a protective adhesive layer are sequentially coated onto a PET temporary base film to form a laser transfer film.

[0029] First lamination: Using the first lamination adhesive layer 2, the substrate layer 1 and the laser transfer film (protective adhesive layer) are dry-laminated to form semi-finished product A.

[0030] Curing and peeling: Curing semi-finished product A at 40-55℃ for 24-48 hours, and then peeling off the PET temporary base film. At this time, the laser information layer and barrier layer have been firmly transferred to the substrate layer, forming semi-finished product B.

[0031] The double-sided protective layer includes an outer protective film 8 attached to the outer layer of the second composite adhesive layer 7 and an inner protective film 81 attached to the side of the substrate layer 1 facing away from the first composite adhesive layer 2. The outer protective film 8 faces the external environment and is required to have excellent abrasion resistance, water resistance, and printability. It is preferably a biaxially oriented polypropylene film (BOPP) or biaxially oriented polyester film (BOPET) that has undergone corona treatment, with a thickness of 12-25 μm. Its outer surface can be digitally printed or coated. The inner protective film (81) is a cast polypropylene film (CPP) or polyethylene film (PE), with a thickness of 15-30 μm, and has good heat-sealing properties and flexibility.

[0032] Furthermore, the laser layer 3 is divided into upper and lower parts, with a flexible circuit board layer 5 and a light-emitting layer 6 between the upper and lower parts. The flexible circuit board layer 5 is attached to the first composite adhesive layer 2, and the light-emitting layer 6 is attached to the flexible circuit board layer 5. The flexible circuit board layer 5 is connected to a connecting line 9, which is connected to a control box 10. The control box 10 contains a microcontroller and a button battery. The light-emitting layer 6 includes several LED beads 62, which are encapsulated on the flexible circuit board layer 5 with insulating glue 61. The flexible circuit board layer 5 is a printed circuit made of a flexible insulating substrate.

[0033] When the LED beads are packaged, they can be arranged into any shape, such as a heart. When used in packaging paper, such as when wrapping flowers, the entire packaging paper can emit heart-shaped light.

[0034] 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 double-coated waterproof laser packaging material paper, characterized in that: From bottom to top, it includes a substrate layer (1), a first composite adhesive layer (2), a laser layer (3), a second composite adhesive layer (7), and a double-sided protective film layer; The laser layer (3) includes, from bottom to top, a stripping layer (4), a laser information layer (11), and a barrier layer (12); The double-sided protective film includes an outer protective film (8) attached to the outer layer of the second composite adhesive layer (7) and an inner protective film (81) attached to the side of the substrate layer (1) facing away from the first composite adhesive layer (2).

2. The double-coated waterproof laser packaging material paper according to claim 1, characterized in that: The laser layer (3) is divided into upper and lower parts, with a flexible circuit board layer (5) and a light-emitting layer (6) between the upper and lower parts. The flexible circuit board layer (5) is attached to the first composite adhesive layer (2), and the light-emitting layer (6) is attached to the flexible circuit board layer (5). The flexible circuit board layer (5) is connected to a connecting line (9), which is connected to a control box (10). The control box (10) contains a microcontroller and a button battery.

3. The double-coated waterproof laser packaging material paper according to claim 2, characterized in that: The light-emitting layer (6) includes a plurality of LED beads (62), which are encapsulated on the flexible circuit board layer (5) by insulating adhesive (61).

4. The double-coated waterproof laser packaging material paper according to claim 1, characterized in that: The substrate layer (1) is made of either paper or plastic film.

5. The double-coated waterproof laser packaging material paper according to claim 1, characterized in that: The outer protective film (8) is made of either biaxially oriented polypropylene film or biaxially oriented polyester film, and the inner protective film (81) is made of either cast polypropylene film or polyethylene film.

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