Alcohol-proof thermosensitive self-adhesive paper

Through multi-layer structural design and specific material combinations, the problem of blurred writing on self-adhesive paper when exposed to alcohol or hand sanitizer has been solved, achieving significant waterproof, oil-proof, and alcohol-proof effects, thus enhancing the practicality of self-adhesive paper.

CN223548354UActive Publication Date: 2025-11-14GUANGDONG FENGHUA NEW MATERIAL TECH CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202423164508.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-21
Publication Date
2025-11-14
Estimated Expiration
2034-12-21

AI Technical Summary

Technical Problem

Existing self-adhesive paper tends to blur the writing when exposed to alcohol or hand sanitizer, and its waterproof and alcohol-resistant properties are not significant enough.

Method used

It adopts a multi-layer structure design, including a paper base layer, a heat-sensitive color developing layer, a waterproof layer, a protective layer, and a coating layer. Combined with nylon thread reinforcement and waterproof and coating layers made of specific materials, it is coated with wax emulsion to enhance waterproof, oil-proof, and alcohol-proof performance.

Benefits of technology

It significantly improves the waterproof, oil-proof, and alcohol-proof properties of self-adhesive paper, ensuring clear writing and extending its service life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223548354U_ABST
    Figure CN223548354U_ABST
Patent Text Reader

Abstract

The utility model discloses alcohol-proof thermosensitive self-adhesive paper, which belongs to the field of self-adhesive paper and comprises a thermosensitive paper component, the thermosensitive paper component comprises a paper base layer, a thermosensitive developing layer is arranged at the upper end of the paper base layer, a first waterproof layer is connected to the upper end of the thermosensitive developing layer, and a second waterproof layer is arranged at the upper end of the first waterproof layer. A second waterproof layer is arranged at the upper end of the paper base layer, a protective layer is arranged at the upper end of the second waterproof layer, a film covering layer is arranged at the upper end of the protective layer, a plurality of reinforcing ribs which are connected in a staggered mode are arranged in the paper base layer, and wax emulsion is coated at the upper end of the film covering layer. Meanwhile, the water-proof, oil-proof and alcohol-proof effects of the thermosensitive self-adhesive paper can be remarkably enhanced, so that the practicability of the self-adhesive paper can be enhanced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of self-adhesive paper, specifically to an alcohol-resistant heat-sensitive self-adhesive paper. Background Technology

[0002] Thermal self-adhesive label paper is a special type of self-adhesive label paper. It is commonly used in applications requiring label printing, such as electronic scales, cash register printer paper, product price tags, frozen food labels, and chemical laboratories. However, existing self-adhesive paper inks, due to their special materials, become blurred when exposed to alcohol or hand sanitizer. Therefore, an alcohol-resistant self-adhesive paper is needed. The "alcohol-resistant thermal self-adhesive paper" disclosed in application number "CN202222632834.7" represents an increasingly mature technology. Its "utility invention effectively protects the self-adhesive paper by wrapping it with a waterproof layer." However, this self-adhesive paper still has the following drawbacks: while the protective layer, heat-resistant layer, and synthetic paper structure do achieve a waterproof effect, the structure is simple, resulting in a relatively low level of waterproof and alcohol-resistant performance. Therefore, it is necessary to provide a self-adhesive paper that can significantly improve the alcohol-resistant effect. Utility Model Content

[0003] This invention provides an alcohol-resistant heat-sensitive self-adhesive paper, aiming to solve the problem that the alcohol-resistant effect of existing self-adhesive papers is not significant enough.

[0004] To achieve the above objectives, this utility model provides an alcohol-resistant thermal self-adhesive paper, including a thermal paper assembly;

[0005] The thermal paper assembly includes a paper base layer, a thermal color developing layer at the upper end of the paper base layer, a first waterproof layer connected to the upper end of the thermal color developing layer, a second waterproof layer at the upper end of the first waterproof layer, a protective layer at the upper end of the second waterproof layer, a film layer at the upper end of the protective layer, a plurality of interlaced reinforcing ribs inside the paper base layer, and a wax emulsion coated on the upper end of the film layer.

[0006] In a preferred embodiment of this utility model, the surface of the thermosensitive color-developing layer is coated with colorless fuel, color developer, sensitizer and adhesive respectively.

[0007] In a preferred embodiment of this invention, the first waterproof layer is made of polyethylene.

[0008] In a preferred embodiment of this invention, the second waterproof layer is made of polypropylene.

[0009] In a preferred embodiment of this invention, the coating layer is made of BOPP material.

[0010] In a preferred embodiment of this utility model, the reinforcing rib is made of nylon thread.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. In use, the paper base layer, combined with the internally interlaced triangular nylon threads, can initially enhance its tensile strength, ensuring the quality of the self-adhesive paper. At the same time, the combination of the first waterproof layer made of polyethylene and the second waterproof layer made of polypropylene can enhance the waterproof performance of the self-adhesive paper. The BOPP film layer, combined with the wax emulsion on the top of the film layer, can significantly enhance the waterproof, oil-proof and alcohol-proof performance of the self-adhesive paper, preventing alcohol and ink from reacting and causing unclear writing. Compared with the self-adhesive paper in the existing technology "An Alcohol-proof Heat-sensitive Self-adhesive Paper", this utility model can significantly enhance the waterproof, oil-proof and alcohol-proof performance of the self-adhesive paper through the above-mentioned structural combination, thereby enhancing the practicality of the self-adhesive paper. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a structural disassembly diagram of the thermal paper assembly of this utility model.

[0015] In the diagram: 100, thermal paper assembly; 101, paper base layer; 102, thermal color developing layer; 103, first waterproof layer; 104, second waterproof layer; 105, protective layer; 106, film layer; 107, reinforcing rib. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1-2 This utility model provides an alcohol-resistant thermal self-adhesive paper, including a thermal paper assembly 100;

[0018] The thermal paper assembly 100 includes a paper base layer 101, a thermal color developing layer 102 at the upper end of the paper base layer 101, a first waterproof layer 103 connected to the upper end of the thermal color developing layer 102, a second waterproof layer 104 at the upper end of the first waterproof layer 103, a protective layer 105 at the upper end of the second waterproof layer 104, a film layer 106 at the upper end of the protective layer 105, a plurality of interlaced reinforcing ribs 107 inside the paper base layer 101, and a wax emulsion coated on the upper end of the film layer 106.

[0019] In one specific embodiment, the thermal paper assembly 100 not only enhances the abrasion resistance and tensile strength of the self-adhesive paper, but also significantly enhances its waterproof, oil-proof, and alcohol-proof properties, thereby improving its practicality. During use, the paper base layer 101, combined with the internally interlaced triangular structure of nylon reinforcing ribs 107, initially enhances its tensile strength, ensuring the quality of the self-adhesive paper. The combination of the first waterproof layer 103 made of polyethylene and the second waterproof layer 104 made of polypropylene enhances the waterproof performance of the self-adhesive paper. The BOPP film layer 106 and the wax emulsion coated on the surface of the film layer 106 significantly enhance the waterproof, oil-proof, and alcohol-proof properties of the self-adhesive paper, thus significantly improving its practicality.

[0020] Please see Figure 2 The surface of the thermosensitive color-developing layer 102 is coated with colorless fuel, color developer, sensitizer and adhesive respectively.

[0021] In one specific embodiment, colorless dye is a key component in the thermosensitive color developing layer 102, which can react with the color developer at a specific temperature to change color. The color developer reacts with the colorless dye, enabling the thermosensitive color developing layer 102 to develop color. At the same time, the sensitizer can increase the sensitivity of the thermal paper to heat, which helps the color developing reaction to proceed. Finally, the adhesive is used to fix the color developer and other components on the paper, thus significantly improving the color developing effect of the thermosensitive color developing layer 102.

[0022] Please see Figure 2 The first waterproof layer 103 is made of polyethylene.

[0023] In one specific embodiment, the first waterproof layer 103 made of polyethylene can improve waterproof performance.

[0024] Please see Figure 2 The second waterproof layer 104 is made of polypropylene.

[0025] In one specific embodiment, the second waterproof layer 104 can further enhance the waterproof performance.

[0026] Please see Figure 2The coating layer 106 is made of BOPP material.

[0027] In one specific embodiment, BOPP is a biaxially oriented polypropylene film, which has good transparency and gloss, and a smooth surface suitable for printing, thus ensuring the printing effect of self-adhesive paper.

[0028] Please see Figure 2 The reinforcing rib 107 is made of nylon thread.

[0029] In one specific embodiment, the nylon thread reinforcing rib 107 can significantly enhance the tensile strength of the paper base layer 101.

[0030] Working principle: During use, the paper base layer 101, together with the internally interlaced triangular structure of nylon reinforcing ribs 107, can initially enhance its tensile strength, thus ensuring the quality of the self-adhesive paper. The combination of the first waterproof layer 103 made of polyethylene and the second waterproof layer 104 made of polypropylene can enhance the waterproof performance of the self-adhesive paper. The BOPP film layer 106 and the wax emulsion coated on the surface of the film layer 106 can significantly enhance the waterproof, oil-proof and alcohol-proof performance of the self-adhesive paper, thereby significantly enhancing the practicality of the thermal self-adhesive paper and extending its service life.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] 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. An alcohol-resistant thermal self-adhesive paper, characterized in that, include: A thermal paper assembly (100) includes a paper base layer (101), a thermal color developing layer (102) is provided at the upper end of the paper base layer (101), a first waterproof layer (103) is connected to the upper end of the thermal color developing layer (102), a second waterproof layer (104) is provided at the upper end of the first waterproof layer (103), a protective layer (105) is provided at the upper end of the second waterproof layer (104), a film layer (106) is provided at the upper end of the protective layer (105), a plurality of interlaced reinforcing ribs (107) are provided inside the paper base layer (101), and a wax emulsion is coated at the upper end of the film layer (106).

2. The alcohol-resistant thermal adhesive paper according to claim 1, characterized in that: The surface of the thermosensitive color-developing layer (102) is coated with colorless fuel, color developer, sensitizer and adhesive respectively.

3. The alcohol-resistant heat-sensitive self-adhesive paper according to claim 1, characterized in that: The first waterproof layer (103) is made of polyethylene.

4. The alcohol-resistant thermal adhesive paper according to claim 1, characterized in that: The second waterproof layer (104) is made of polypropylene.

5. The alcohol-resistant thermal adhesive paper according to claim 1, characterized in that: The coating layer (106) is made of BOPP material.

6. The alcohol-resistant thermal adhesive paper according to claim 1, characterized in that: The reinforcing rib (107) is made of nylon thread.

Citation Information

Patent Citations

  • Alcohol-proof thermosensitive self-adhesive paper

    CN218676322U