High strength waterproof label paper

Abstract

The utility model discloses a kind of high-strength waterproof label paper, it is related to label paper technical field.The utility model is internally increased with rigid support layer, wrinkle-resistant memory layer and multi-dimensional reinforcing layer in label paper, the deformation resistance of rigid support layer high modulus PET film is enhanced, the high modulus characteristic of PET film can resist external force such as bending, stretching, ensure that label paper keeps flat without warping in attaching or transportation, especially suitable for curved surface labelling or dynamic environment, compared with metal or thick paperboard support layer, the thermoplastic polyurethane elastomer film of wrinkle-resistant memory layer has elastomer absorption folding, extrusion and other external force impact, prevent permanent wrinkle of label, automatically rebound and restore flat after attaching, surface tiny scratch can be repaired by the molecular chain migration of thermoplastic polyurethane elastomer film, maintain label paper appearance integrity, the fiber mesh of the glass fiber mesh cloth of multi-dimensional reinforcing layer forms three-dimensional reinforcing network.

Description

Technical Field

[0001] This utility model relates to the field of label paper technology, specifically a high-strength waterproof label paper. Background Technology

[0002] Labels are paper or synthetic materials with adhesive on their surface. They carry information through printing, handwriting, or pasting onto the surface of objects to achieve identification, classification, tracking, or notification functions. Their applications cover multiple fields, including logistics and transportation (such as express delivery labels and cargo coding), retail management (product price tags and barcodes), industrial production (product traceability labels and equipment parameter stickers), warehousing and inventory (shelf classification and asset numbering), and daily life (food expiration date marking and storage organization). With technological advancements, labels have evolved from basic paper materials into weather-resistant, waterproof, removable, or RFID-integrated smart carriers. They not only meet the needs of efficient daily management but also adapt to special environments (such as freezing and outdoor use) or enable wireless data interaction, becoming a key tool for information transmission and process optimization.

[0003] Existing label paper can become wrinkled, making the information on the paper unscannable. The barcodes / QR codes on the labels can also become deformed due to wrinkles, causing scanning equipment to fail to recognize them. This can lead to logistics disruptions, incorrect inventory data, or settlement delays. The accuracy of information can be compromised, and key data (such as product batch numbers and expiration dates) can become blurred. This can result in incorrect sorting, expired products entering the market, or failure of quality traceability. Frequent replacement of labels that are scrapped due to wrinkles may also force the purchase of expensive wrinkle-resistant materials, increasing operating expenses. Utility Model Content

[0004] This invention provides a high-strength waterproof label paper, which has the advantages of high strength and resistance to damage, thus solving the problem of waterproof label paper being easily wrinkled and damaged.

[0005] To achieve the goal of high strength and durability of waterproof label paper, this utility model provides the following technical solution: a high-strength waterproof label paper, comprising label paper, wherein the label paper has a base paper layer inside, an adhesive layer is provided on the top surface of the base paper layer, a rigid support layer is provided on the top surface of the adhesive layer, an anti-wrinkle memory layer is provided on the top surface of the rigid support layer, a multi-dimensional reinforcement layer is provided on the top surface of the anti-wrinkle memory layer, and a waterproof coating is provided on the top surface of the multi-dimensional reinforcement layer.

[0006] As a preferred embodiment of this utility model, the base paper layer is made of glassine paper material, and the thickness of the base paper layer is 100μm-150μm.

[0007] As a preferred embodiment of this invention, the adhesive layer is made of acrylic pressure-sensitive adhesive, and the thickness of the adhesive layer is 25μm-35μm.

[0008] As a preferred embodiment of this utility model, the rigid support layer is made of high-modulus PET film material, and the thickness of the rigid support layer is 25μm-50μm; the anti-wrinkle memory layer is made of thermoplastic polyurethane elastomer film material, and the thickness of the anti-wrinkle memory layer is 10μm-15μm; the multidimensional reinforcement layer is made of glass fiber mesh cloth material, and the thickness of the multidimensional reinforcement layer is 50μm-70μm; the multidimensional reinforcement layer contains a resin impregnation layer.

[0009] As a preferred embodiment of this invention, the waterproof coating is a polyurethane coating with a thickness of 5μm-10μm.

[0010] Compared with the prior art, this utility model provides a high-strength waterproof label paper, which has the following beneficial effects:

[0011] This high-strength waterproof label paper features an internal rigid support layer, a wrinkle-resistant memory layer, and a multi-dimensional reinforcement layer. The rigid support layer utilizes a high-modulus PET film to enhance deformation resistance. The high modulus of the PET film resists external forces such as bending and stretching, ensuring the label paper remains flat and warp-free during application or transportation. It is particularly suitable for labeling curved surfaces or dynamic environments. Compared to metal or thick cardboard support layers, the PET film provides rigidity while reducing weight and transportation costs. The wrinkle-resistant memory layer uses a thermoplastic polyurethane elastomer film to absorb impacts from folding and compression, preventing permanent wrinkles on the label. After application, it automatically springs back to its flat state. Minor scratches on the surface can be self-repaired through the migration of molecular chains in the thermoplastic polyurethane elastomer film, maintaining the integrity of the label paper's appearance. The multi-dimensional reinforcement layer uses a fiber mesh fabric to form a three-dimensional reinforcement network, preventing the spread of cracks when there is local damage, such as when the label edge is snagged. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0014] In the diagram: 1. Label paper; 2. Backing paper layer; 3. Waterproof coating; 4. Adhesive layer; 5. Multi-dimensional reinforcement layer; 6. Rigid support layer; 7. Wrinkle-resistant memory layer. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1-2 This utility model discloses a high-strength waterproof label paper, including label paper 1, a base paper layer 2 inside the label paper 1, an adhesive layer 4 on the top surface of the base paper layer 2, a rigid support layer 6 on the top surface of the adhesive layer 4, an anti-wrinkle memory layer 7 on the top surface of the rigid support layer 6, a multi-dimensional reinforcement layer 5 on the top surface of the anti-wrinkle memory layer 7, and a waterproof coating 3 on the top surface of the multi-dimensional reinforcement layer 5. The rigid support layer 6 is made of high-modulus PET film, which can resist bending deformation caused by external force and ensure the flatness of the label paper 1. The anti-wrinkle memory layer 7 is made of thermoplastic polyurethane elastomer film, which can absorb external impact, prevent the label from permanent wrinkles caused by folding or squeezing, achieve self-repair of minor scratches, and reduce weight with a microporous structure while maintaining elastic recovery performance. The multi-dimensional reinforcement layer 5 is made of fiberglass mesh, which prevents crack propagation, improves tear resistance, and is suitable for hot melt adhesive label processing. The outermost waterproof coating 3 is a polyurethane coating, which makes the label paper 1 waterproof.

[0017] The backing paper layer 2 is made of glassine paper material with a thickness of 100μm-150μm. The adhesive layer 4 is made of acrylic pressure-sensitive adhesive with a thickness of 25μm-35μm. The backing paper layer 2 of the label paper 1 is made of glassine paper material. Glassine paper is made of chemical pulp or mechanical pulp through supercalendering. It has a dense and smooth surface, high tensile strength and water resistance, reduces friction between the label paper 1 and the backing paper, ensures smooth and non-jamming during high-speed labeling, and effectively prevents adhesive penetration that could cause deformation of the backing paper, thus extending the shelf life. The adhesive layer 4 is made of acrylic pressure-sensitive adhesive. Acrylic pressure-sensitive adhesive is mainly composed of acrylate copolymers and is made through solvent-based, water-based or UV curing processes. Therefore, it is resistant to ultraviolet rays, high temperatures and low temperatures, suitable for long-term outdoor use, and resistant to weak acids, weak alkalis, oils and solvents, making it suitable for chemical labels.

[0018] The rigid support layer 6 is made of high-modulus PET film material with a thickness of 25μm-50μm. The anti-wrinkle memory layer 7 is made of thermoplastic polyurethane elastomer film material with a thickness of 10μm-15μm. The multi-dimensional reinforcement layer 5 is made of glass fiber mesh material with a thickness of 50μm-70μm. The multi-dimensional reinforcement layer 5 contains a resin impregnation layer. The waterproof coating 3 is made of polyurethane coating with a thickness of 5μm-10μm, which increases the strength of the label paper 1.

[0019] The working principle and usage process of this utility model are as follows: The backing paper layer 2 of the label paper 1 is made of glassine paper material. Glassine paper is made of chemical pulp or mechanical pulp through supercalendering, with a dense and smooth surface, high tensile strength and water resistance. It reduces friction between the label paper 1 and the backing paper, ensuring smooth and uninterrupted labeling at high speeds. Furthermore, the glassine paper effectively prevents adhesive penetration that could cause deformation of the backing paper, extending its shelf life. The adhesive layer 4 is made of acrylic pressure-sensitive adhesive. Acrylic pressure-sensitive adhesive is mainly composed of acrylate copolymers and is made through solvent-based, water-based, or UV curing processes. This makes it resistant to ultraviolet rays, high temperatures, and low temperatures, suitable for long-term outdoor use, and resistant to weak acids and weak alkalis. It is resistant to grease and solvent corrosion and is suitable for chemical labels. The rigid support layer 6 is made of high-modulus PET film, which can resist bending deformation caused by external forces and ensure the flatness of the label paper 1. The anti-wrinkle memory layer 7 is made of thermoplastic polyurethane elastomer film, which can absorb external impacts, prevent the label from developing permanent wrinkles due to folding or squeezing, and achieve self-repair of minor scratches. The microporous structure reduces weight while maintaining elastic recovery performance. The multi-dimensional reinforcement layer 5 is made of glass fiber mesh, which prevents crack propagation and improves tear resistance, making it suitable for hot melt adhesive label processing. The outermost waterproof coating 3 is made of polyurethane coating, which makes the label paper 1 waterproof.

Claims

1. A high-strength waterproof label paper, comprising label paper (1), characterized in that: The label paper (1) has a base paper layer (2) inside, an adhesive layer (4) on the top surface of the base paper layer (2), a rigid support layer (6) on the top surface of the adhesive layer (4), an anti-wrinkle memory layer (7) on the top surface of the rigid support layer (6), a multi-dimensional reinforcement layer (5) on the top surface of the anti-wrinkle memory layer (7), and a waterproof coating (3) on the top surface of the multi-dimensional reinforcement layer (5).

2. The high-strength waterproof label paper according to claim 1, characterized in that: The backing paper layer (2) is made of glassine paper material and the thickness of the backing paper layer (2) is 100μm-150μm.

3. The high-strength waterproof label paper according to claim 2, characterized in that: The adhesive layer (4) is made of acrylic pressure-sensitive adhesive and has a thickness of 25μm-35μm.

4. The high-strength waterproof label paper according to claim 2, characterized in that: The rigid support layer (6) is made of high modulus PET film material and has a thickness of 25μm-50μm. The anti-wrinkle memory layer (7) is made of thermoplastic polyurethane elastomer film material and has a thickness of 10μm-15μm. The multidimensional reinforcement layer (5) is made of glass fiber mesh material and has a thickness of 50μm-70μm. The multidimensional reinforcement layer (5) contains a resin impregnation layer.

5. The high-strength waterproof label paper according to claim 1, characterized in that: The waterproof coating (3) is a polyurethane coating, and the thickness of the waterproof coating (3) is 5μm-10μm.

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