Highly transparent scratch-resistant adhesive label

Abstract

The utility model discloses a kind of high-transparency scratch-proof self-adhesive labels, including label paste, the both ends of label paste are equipped with paste grip piece, the label paste includes film layer, substrate layer and adhesive layer, film layer, substrate layer and adhesive layer are sequentially laminated along the thickness direction of label paste, the structure of the utility model paste grip piece is to paste and bring full convenience, the pre-set edge of glue-free area can be peeled off label by hand, avoid traditional scratch and dig to wrinkle, adhesive failure The problem, only touch paste grip piece to prevent main body pollution and adhesive damage throughout, temporarily fixed with the aid of glue area when pasting, fine adjustment, it is separated with the point of label paste main body, it is convenient to tear, tear after ensuring that label paste edge is complete, improve convenience, reduce fault tolerance, multilayer composite, 18 μm BOPP film high-transparency and scratch-proof, 30 μm PP substrate balance stiffness flexibility, guarantee printing stability, after three-layer composite, about 60 μm light and thin of whole, solve the contradiction of high-transparency scratch-proof, scratch-proof then poor light transmission.

Description

Technical Field

[0001] This utility model mainly relates to the field of self-adhesive label technology, specifically a high-transparency, scratch-resistant self-adhesive label. Background Technology

[0002] Self-adhesive labels, also known as self-adhesive labels or instant labels, are prefabricated, self-adhesive information carriers and adhesives. They can be directly pasted onto various substrates without the need for additional glue through a pre-set adhesive layer. They are primarily used for product identification, information labeling, decoration, or functional prompts, and are widely used in packaging, industry, consumer electronics, medical and other fields.

[0003] However, existing labels require peeling off the edges when using them, which can easily lead to label wrinkles and adhesive failure. Furthermore, direct contact with the label body by fingers can cause fingerprints and oil stains. The lack of temporary fixing points during pasting makes the labels prone to shifting, and tearing during adjustments can damage the labels, resulting in a high error rate. In addition, existing labels struggle to balance high transparency and scratch resistance, exhibiting either high transparency but poor scratch resistance, or scratch resistance but insufficient light transmission. Utility Model Content

[0004] This utility model addresses the problem of overly simplistic solutions in existing technologies by providing a highly transparent and scratch-resistant self-adhesive label. This solves the problems mentioned in the background section, where existing labels require picking at the edges during application, leading to wrinkles and adhesive failure. Furthermore, direct contact with the label causes fingerprints and oil stains. They also lack temporary fixing points, making them prone to shifting, tearing during adjustments, and resulting in a high error rate. Additionally, they struggle to balance high transparency and scratch resistance, exhibiting a trade-off between high transparency and poor scratch resistance, or between scratch resistance and insufficient light transmission.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A high-transparency, scratch-resistant self-adhesive label includes a label sticker with adhesive grips at both ends. The label sticker includes a film layer, a substrate layer, and an adhesive layer, which are stacked sequentially along the thickness direction of the label sticker, and each layer extends along the plane of the label sticker.

[0006] Furthermore, the gripper and the label are made of the same material, and both are bonded to the surface of the backing paper by their respective adhesive layers. The gripper and the label are an integral structure, and there are connection points distributed in a linear dotted pattern between them.

[0007] Furthermore, the coating layer has a thickness of 18 μm and is fixedly attached to the surface of the substrate layer by a hot-pressing process.

[0008] Furthermore, the adhesive layer is coated on the bottom of the substrate layer, and the thickness of the adhesive layer is 12 μm.

[0009] Furthermore, the substrate layer has a printed coating on its surface facing the coating layer, and the substrate layer has a thickness of 30 μm.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This high-transparency, scratch-resistant self-adhesive label features an integrated grip design, significantly optimizing the user experience for both picking up and applying. It addresses the core pain points of traditional labels. The grips at both ends of the label have pre-designed adhesive-free lifting edges, allowing operators to easily peel the label off the backing paper without tools. This completely eliminates the problems of traditional labels requiring edge picking, which can lead to wrinkles or adhesive failure. Throughout the peeling and application process, fingers only contact the grips, never the label itself. This prevents fingerprints and oil from contaminating the label's effective display surface and avoids reduced adhesive strength or the adhesion of impurities caused by finger contact. During application, the adhesive area of ​​the grip can be lightly adhered to the target substrate to form a temporary fixing point, allowing for fine-tuning of the label's position based on this point. This avoids the problems of traditional labels lacking a positioning reference, easily shifting, or requiring subsequent peeling. Once the bonding is complete, the adhesive grip and the label body can be easily separated by linear point-break connections, with no residual damage to the label edges. This not only ensures both the accuracy of the adhesive application and the integrity of the appearance, but also improves the convenience of the application process and reduces the error rate.

[0011] 2. This label achieves multiple advantages—high transparency, scratch resistance, thinness, and stable printing—through a multi-layered composite structure of materials and thicknesses. Firstly, the laminating layer uses an 18μm thick transparent biaxially oriented polypropylene (BOPP) film, pre-coated with a scratch-resistant coating with a hardness ≥2H. The material's inherent haze of less than 3.5% and the hot-pressing lamination process ensure an overall label haze of less than 8%, guaranteeing both clear high transparency and strong protection for printed information. This effectively avoids the industry contradiction of high transparency without scratch resistance, or scratch resistance with poor light transmission. The substrate layer uses a 30μm thick polypropylene (PP) film. The label's suitable thickness balances stiffness and flexibility, preventing wrinkles or breakage during processing, transportation, and application. It also adapts to adhesive substrates with varying curvatures. Furthermore, the printed coating on its surface solves the problem of poor ink adhesion caused by the smoothness of PP film, ensuring that printed information such as text and images will not peel off or fade over a long period. The 12μm thick permanent adhesive layer combines excellent initial tack and holding power, making it suitable for various scenarios such as room temperature and refrigeration. Together, these three elements form a lightweight structure of approximately 60μm, ensuring performance while enhancing the label's fit and the refined texture of the product packaging after application.

[0012] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0013] Figure 1This is a schematic diagram of the main structure of this utility model; Figure 2 This is an exploded view of the present invention.

[0014] Numbering on the map: 1. Label; 2. Adhesive sheet; 3. Lamination layer; 4. Substrate layer; 5. Adhesive layer. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0016] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0017] Please refer to the appendix carefully. Figure 1-2 A high-transparency, scratch-resistant self-adhesive label includes a label sticker 1, with adhesive grips 2 at both ends. The label sticker 1 includes a film layer 3, a substrate layer 4, and an adhesive layer 5. The film layer 3, the substrate layer 4, and the adhesive layer 5 are stacked sequentially along the thickness direction of the label sticker 1, and each layer extends along the plane direction of the label sticker 1.

[0018] In this embodiment, as Figure 1 and Figure 2 As shown, the gripper 2 and the label 1 are made of the same material. Both are bonded to the surface of the backing paper by their respective adhesive layers 5. The gripper 2 and the label 1 are an integral structure, and there are connection points distributed in a linear dotted pattern between them.

[0019] With the above structure, one side of the grip piece 2 has a raised edge structure, and the raised edge area is not attached to the adhesive layer 5. Traditional labels require prying off the label edge when used, which can easily lead to wrinkles and adhesive failure. In addition, fingers can easily touch the effective display surface of the label, causing fingerprints or oil stains. However, by adding the grip piece 2, the structure of the raised edge without adhesive allows for direct pinching and lifting, making it easy to use without tools, completely solving the problem of inconvenience in traditional label use. When pasting, fingers only touch the grip piece 2, completely avoiding contact with the label body and eliminating the risk of contamination and adhesive failure. During application, the gripper 2 can be used as a point of force. By using the area with adhesive layer 5 on the gripper 2, a temporary fixing point can be formed by lightly adhering to the target carrier. The operator can use this fixing point as a reference to adjust the overall position of the label 1 by finely adjusting the gripper 2. This avoids the problems of no positioning reference and easy displacement in traditional application. After the position is confirmed, the label body is pressed to complete the application. Finally, the gripper 2 can be easily separated by linear point break connection. There is no residual damage to the edge of the label 1, which further optimizes the accuracy of application and the integrity of the final appearance. Compared with the traditional label structure, it is more convenient.

[0020] In this embodiment, as Figure 1 and Figure 2 As shown, the coating layer 3 has a thickness of 18 μm and is fixedly connected to the surface of the substrate layer 4 by a hot pressing process.

[0021] Through the above structure, the coating layer 3, with a thickness of 18μm, is fixed to the surface of the substrate layer 4 by a hot-pressing process. Its thinness can work together with the substrate layer 4 and the adhesive layer 5 to control the overall thickness of the label 1 to about 66μm, avoiding the label 1 from being too heavy due to excessive coating and affecting the exquisite texture of the packaging. At the same time, it can rely on the low haze characteristics of the transparent BOPP material itself to not weaken the overall light transmission effect of the label. It can also provide sufficient anti-friction carrier for printing on the surface of the substrate layer 4, ensuring that the printed information cannot be easily scratched and damaged by the outside world, and ensuring the stable interlayer connection. Ultimately, it achieves multiple advantages of being thin, highly transparent, scratch-resistant and durable.

[0022] In this embodiment, as Figure 1 and Figure 2 As shown, adhesive layer 5 is coated on the bottom of substrate layer 4, and the thickness of adhesive layer 5 is 12μm.

[0023] Through the above structure, the adhesive layer 5 is in direct contact with the target adhesive carrier. It uses permanent oil-based adhesive with a thickness of 12μm. The permanent oil-based adhesive can fully exert stable initial tack and holding power, effectively preventing the label 1 from peeling off after being pasted. It is suitable for various scenarios such as room temperature and refrigeration. Combined with the thickness of other layers, it can achieve the advantages of stable adhesion and thinness.

[0024] In this embodiment, as Figure 1 and Figure 2 As shown, the substrate layer 4 has a printed coating on the surface facing the coating layer 3, and the thickness of the substrate layer 4 is 30μm.

[0025] Through the above structure, the 30μm thickness balances stiffness and flexibility, which can not only prevent the label from wrinkling or breaking during processing, transportation and pasting, but also adapt to pasting carriers with different curvatures. The printing coating on its surface effectively solves the problem of poor ink adhesion caused by the smooth surface of PP film, and can stably carry printed information such as text and patterns, ensuring that the content of the label does not fall off or fade during long-term use.

[0026] The specific operating procedure of this utility model is as follows: It should be noted that this manual focuses on the core layered structure, processing technology and supply scenario adaptability of high-transparency scratch-resistant self-adhesive labels. The illustrations do not show the bulk packaging form of the labels. In actual supply, the bottom is glued with a backing paper, and the labels can be in roll form or customized according to customer needs (such as label size, single roll length). The following describes in detail the processing logic, functional performance and supply adaptability of each structure in conjunction with specific processing technology, functional characteristics and supply needs.

[0027] When the label 1 is used, the grips 2 at both ends are specially designed with raised edges. The raised edges are not coated with adhesive layer 5, so that when the label 1 and the grips 2 are attached to the backing paper, it is easier for the operator to peel off the label 1. The operator can easily lift it by simply pinching the raised edge of the grip 2, which provides more convenient conditions for subsequent peeling.

[0028] By slowly pulling with the grip piece 2 as the force-applying end, the label 1 can be smoothly peeled off from the backing paper. Throughout the peeling process, the operator's fingers only touch the area of ​​the grip piece 2, completely avoiding direct contact with the effective display surface of the label 1. This not only eliminates the impact of fingerprints, oil stains and other contaminants on the appearance of the label 1, but also prevents the problem of reduced adhesion of the adhesive layer 5 or the adhesion of impurities caused by finger contact, ensuring the functional integrity of the label 1 before it is pasted.

[0029] After peeling is completed, the operator can use the printed coating on the surface of the substrate layer 4 of the label sticker 1 (such as brand logo, positioning lines, etc.) as a visual reference, combined with the preset pasting position of the target adhesive carrier, to make precise alignment, ensuring the positioning accuracy of the label sticker 1 and the adhesive carrier. After accurate positioning, press the main area of ​​the label sticker 1 with your fingers or a special bonding tool to make the adhesive layer 5 fully adhere to the surface of the carrier and form a stable bond.

[0030] Once the label 1 is pasted onto the carrier, only a slight tearing force needs to be applied to the gripper 2. Since the gripper 2 and the label 1 are an integral structure, the linear dotted connection area formed by laser die-cutting between the two is weakened due to structural strength, which can easily separate the gripper 2 from the main body of the label 1. After separation, there is no residue or damage to the edge of the main body of the label 1, thus completing the entire label pasting process.

[0031] The substrate layer 4 of the label 1 serves as both a support carrier and a printing carrier. It is based on a 30μm thick polypropylene (PP) film. The surface of the label facing the coating layer 3 is uniformly coated with a printing coating through a roller coating process and then dried.

[0032] The coating layer 3 is a 18μm thick transparent biaxially oriented polypropylene (BOPP) film. Its surface is pre-coated with an anti-scratch coating (hardness ≥2H) through a coating process. Then, it is combined with the printed coating side of the substrate layer 4 through a hot-pressing process to achieve a composite structure. The 18μm BOPP film itself has a haze of less than 3.5%. Combined with the hot-pressing process, it directly ensures that the overall haze of the label 1 is less than 8%, achieving a high transparency effect.

[0033] On the one hand, the substrate layer 4, with its 30μm thickness, provides suitable stiffness and flexibility, preventing the label 1 from wrinkling or breaking during processing, transportation, and application, while also adapting to different curvatures of the adhesive carrier. On the other hand, the surface printing coating solves the problem of poor ink adhesion caused by the smooth surface of the PP film. Combined with the surface-coated layer 3, it gives the label 1 excellent abrasion resistance, allowing it to stably carry printed information such as text and patterns, ensuring that the printed content does not peel off or fade during long-term use. This enables it to pass the 4kg / 400-cycle abrasion resistance test, resolving the common contradiction in the market where high transparency does not prevent scratching and scratch resistance results in poor light transmission. At the same time, as the outermost protective layer, it prevents the printed information on the substrate layer 4 from being scratched and damaged.

[0034] The adhesive layer 5 is a 12μm thick permanent adhesive, which is uniformly coated on the side of the substrate layer 4 away from the printed coating through a micro-gravure coating process. After coating, it is dried and cured under certain temperature control to ensure that there is no solvent residue in the adhesive. The permanent adhesive has excellent initial tack and holding power, and can be adapted to various scenarios such as room temperature and refrigeration, avoiding the problem of label lifting and falling off after the label is pasted. Together with the thickness of the substrate layer 4 and the film layer 3, it forms a base thickness of about 60μm, realizing a thinner label structure to improve the overall texture of the packaging.

[0035] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A high-transparency, scratch-resistant self-adhesive label, comprising a label sticker (1), characterized in that: The label (1) has adhesive grips (2) at both ends. The label (1) includes a film layer (3), a substrate layer (4) and an adhesive layer (5). The film layer (3), the substrate layer (4) and the adhesive layer (5) are stacked sequentially along the thickness direction of the label (1), and each layer extends along the plane direction of the label (1).

2. The high-transparency, scratch-resistant self-adhesive label according to claim 1, characterized in that: The adhesive grip (2) and the label sticker (1) are made of the same material. Both are bonded to the surface of the backing paper by their respective adhesive layers (5). The adhesive grip (2) and the label sticker (1) are an integral structure, and there are connection points distributed in a linear dotted pattern between them.

3. The high-transparency, scratch-resistant self-adhesive label according to claim 1, characterized in that: The coating layer (3) has a thickness of 18 μm and is fixedly connected to the surface of the substrate layer (4) by hot pressing.

4. The high-transparency, scratch-resistant self-adhesive label according to claim 1, characterized in that: The adhesive layer (5) is coated on the bottom of the substrate layer (4), and the thickness of the adhesive layer (5) is 12 μm.

5. The high-transparency, scratch-resistant self-adhesive label according to claim 1, characterized in that: The substrate layer (4) has a printed coating on the surface facing the film layer (3), and the substrate layer (4) has a thickness of 30 μm.

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