A self-adhesive label

Abstract

The utility model discloses a kind of adhesive labels, including from below to above sequentially including release paper layer, security glue layer, substrate layer, strengthen tear layer and surface printing layer;The substrate layer inside is embedded with warp-weft staggered tear reinforcement net, the tear reinforcement net is woven from nylon fine line, and nylon fine line is only fixedly connected with substrate layer at grid node;The security glue layer is modified acrylic pressure-sensitive adhesive, and adopts local point gluing mode, is only coated in the four peripheral edge regions and central cross region of label;The strengthen tear layer is brittle polystyrene film, surface is equipped with microcrack texture, and is compounded by punctate gluing with substrate layer;Release paper layer side is equipped with easy tear tongue, the surface printing layer is equipped with warning word pattern;The surface printing layer is also equipped with fluorescent anti-counterfeiting pattern. The label has the characteristics of tamper resistance, high security, overall function is perfect, and practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, and more specifically, to a self-adhesive label. Background Technology

[0002] Traditional labels rely on "one-time adhesive layers" or "printed confidentiality lettering" to achieve confidentiality, but they have significant drawbacks: 1. They are easily peeled off without damage: Although some high-viscosity labels are difficult to peel off, they can still be completely peeled off by heating or applying solvents, and the content can be altered and re-attached without being detected; 2. Tearing marks are not obvious: The substrate of ordinary labels is mostly a single film, and the edges can be trimmed and spliced ​​after tearing, creating the illusion of "not torn"; 3. Poor adaptability: Existing labels with tear-off function are mostly fixed sizes, making it difficult to adapt to sealing scenarios with different specifications such as envelopes and packaging boxes.

[0003] To address the aforementioned issues, this utility model proposes a self-adhesive label that, through an "embedded substrate structure and special adhesive layer design," ensures that once the label is attempted to be peeled off or tampered with, it will inevitably produce irreparable tear marks and is suitable for various confidentiality scenarios. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a self-adhesive label with the characteristics of being tamper-proof and highly confidential.

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: The self-adhesive label of this utility model includes, from bottom to top, a release paper layer, a security adhesive layer, a substrate layer, a reinforced tear layer, and a surface printing layer; the substrate layer is embedded with a tear-reinforcing mesh with interlaced warp and weft, the tear-reinforcing mesh is woven from nylon threads, and the nylon threads are fixedly connected to the substrate layer only at the mesh nodes.

[0006] The present invention is further configured such that the confidential adhesive layer is a modified acrylic pressure-sensitive adhesive, and is applied using a local dispensing method, only coating the surrounding edge area and the central cross area of ​​the label.

[0007] The present invention is further configured such that: the reinforcing tear layer is a brittle polystyrene film with microcrack texture on the surface, and is composite with the substrate layer by dot-shaped adhesive coating.

[0008] The present invention is further configured such that: an easy-tear tongue is provided on one side of the release paper layer, and warning words are provided on the surface printing layer.

[0009] The present invention is further configured such that the surface printing layer is also provided with a fluorescent anti-counterfeiting pattern.

[0010] In summary, this utility model has the following beneficial effects:

[0011] 1. The double tear-off structure ensures that the label leaves an irreversible mark once it is touched, preventing problems such as undamaged alteration and splicing forgery;

[0012] 2. The easy-tear tongue and positioning line design simplify the pasting process, requiring no special tools;

[0013] 3. The size can be cut to fit various needs, suitable for documents, express delivery, confidential equipment and other scenarios;

[0014] 4. It uses water-based ink and recyclable substrate, which meets environmental protection requirements, and the surface printing layer is resistant to friction and does not easily fade. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial structural schematic diagram of the present invention. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the preferred embodiments of this utility model are described below in conjunction with specific examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the patent claims of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0018] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0019] Example 1

[0020] See Figure 1 and Figure 2 As shown, the self-adhesive label involved in this embodiment includes, from bottom to top, a release paper layer 1, a security adhesive layer 2, a substrate layer 3, a reinforced tear layer 4, and a surface printing layer 5; the substrate layer 3 is internally embedded with a tear-reinforcing mesh 301 with interlaced warp and weft, the tear-reinforcing mesh 301 is woven from nylon threads, and the nylon threads are fixedly connected to the substrate layer 3 only at the mesh nodes 302.

[0021] Furthermore, the confidential adhesive layer 2 is a modified acrylic pressure-sensitive adhesive, and it is applied using a local dispensing method, only coating the surrounding edge areas and the central cross area of ​​the label.

[0022] Furthermore, the reinforcing tear layer 4 is a brittle polystyrene film with microcrack textures on its surface, and is composited with the substrate layer by dot-shaped adhesive coating.

[0023] Furthermore, one side of the release paper layer 1 is provided with an easy-tear tongue (not shown), and the surface printing layer 5 is provided with warning words and fluorescent anti-counterfeiting patterns.

[0024] In this implementation scheme, the label adopts a five-layer composite structure, from bottom to top: release paper layer, security adhesive layer, substrate layer, tear-resistant layer, and surface printing layer. Each layer is fixedly connected by hot-pressing or coating processes, with the overall thickness controlled between 0.15-0.3mm, suitable for conventional labeling scenarios.

[0025] The release paper layer is coated with silicone release agent, and has an easy-tear tab on one edge for manual removal. The release paper layer protects the underlying adhesive layer, preventing it from becoming ineffective due to dust adhesion when not in use.

[0026] The confidential adhesive layer uses modified acrylic pressure-sensitive adhesive, with a thickness controlled at 0.03-0.05mm, and is applied using a localized dotting method; the edge adhesive layer ensures strong adhesion, while the central cross-shaped adhesive layer enhances overall adhesion.

[0027] The connection between the substrate layer and the nylon thread is as follows: it is only locally fixed at the grid nodes by hot melt adhesive, and the thread is not bonded to the substrate at non-node locations. As the basic load-bearing layer of the label, the embedded tear-resistant mesh is the core that is easily torn. When the label is pulled, the substrate layer will break along the non-fixed area of ​​the nylon thread, forming an irregular serrated tear that cannot be spliced ​​back together.

[0028] Among them, the surface of the reinforced tear layer is formed with irregular micro-crack texture through molding process, and it is bonded to the substrate layer with dot-shaped adhesive to further enhance the brittleness of the label.

[0029] The self-adhesive label involved in this utility model adopts a double tear-off structure to ensure that the label leaves an irreversible mark once it is touched, eliminating problems such as undamaged alteration and splicing forgery; the easy-tear tongue and positioning line design simplify the pasting operation without special tools; it can be cut to size according to needs and is suitable for various scenarios such as documents, express delivery, and confidential equipment; and it uses water-based ink and recyclable substrate, which meets environmental protection requirements, and the surface printing layer is abrasion resistant and does not easily fade. Overall, it has complete functions and strong practicality.

[0030] Unless otherwise specified, in this utility model, terms such as "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the actual orientation or positional relationship shown. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are for illustrative purposes only and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the embodiments and according to the specific circumstances.

[0031] Unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A self-adhesive label, characterized in that, From bottom to top, it includes a release paper layer, a sealing adhesive layer, a substrate layer, a reinforced tear layer, and a surface printing layer; the substrate layer is embedded with an interlaced tear-reinforcing mesh, which is woven from nylon threads, and the nylon threads are fixedly connected to the substrate layer only at the mesh nodes.

2. The self-adhesive label according to claim 1, characterized in that, The confidential adhesive layer is a modified acrylic pressure-sensitive adhesive, and it is applied using a local dispensing method, only in the four edges and the central cross area of ​​the label.

3. The self-adhesive label according to claim 1 or 2, characterized in that, The reinforced tear-resistant layer is a brittle polystyrene film with microcrack textures on its surface, and is bonded to the substrate layer by dot-like adhesive coating.

4. The self-adhesive label according to claim 3, characterized in that, The release paper layer has an easy-tear tab on one side, and the surface printing layer has warning words.

5. The self-adhesive label according to claim 4, characterized in that, The surface printing layer also features fluorescent anti-counterfeiting patterns.

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