Micro-pressure touch tipping paper
By introducing a multi-layer structure and temperature-sensitive microspheres into the inner lining paper of cigarettes, a composite anti-counterfeiting system is formed, which solves the problems of easy counterfeiting and poor durability of existing inner lining paper of cigarettes, and achieves high security and durability of tactile identification.
Patent Information
- Application Number
- CN202522373146.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-10
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-11-10
AI Technical Summary
Existing anti-counterfeiting technologies for cigarette inner lining paper are easily counterfeited, have poor durability, lack interactive experience with consumers, and are difficult to meet the high-security anti-counterfeiting requirements.
It adopts a multi-layer structure design, including a substrate support layer, a UV-cured resin layer, a TPU film layer, and a wear-resistant coating. Combined with fiber strips, raised textures, and temperature-sensitive TPE microspheres, it forms a composite anti-counterfeiting system that can identify authenticity through touch.
It offers multiple tactile variations, allowing consumers to intuitively and reliably verify authenticity through finger touch. The anti-counterfeiting features are highly durable and meet food-grade safety standards.
Smart Images
Figure CN224941695U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of cigarette inner lining paper, specifically, it relates to a micro-pressure tactile splicing paper. Background Technology
[0002] Cigarette liner paper is an important component of cigarette packaging, primarily serving functions such as moisture protection, aroma preservation, and light shielding. With the proliferation of counterfeit cigarette products, traditional printing anti-counterfeiting technologies are no longer sufficient to meet the market's demand for high-security anti-counterfeiting measures. Counterfeiters can easily replicate visual anti-counterfeiting features using high-precision scanning and printing technologies.
[0003] Existing technologies include some lining papers that employ anti-counterfeiting measures through materials or structures, such as holographic laser films or fluorescent fibers. However, most of these technologies still focus on visual anti-counterfeiting, making them easy to counterfeit and lacking interactive experiences for consumers. Furthermore, some tactile lining papers have relatively simple tactile features, are easily copied, and have poor durability; their anti-counterfeiting features easily wear away after repeated rubbing.
[0004] Therefore, there is an urgent need in this field for a new type of cigarette liner paper that integrates multiple anti-counterfeiting mechanisms, is difficult to replicate, can be intuitively identified by touch, and has good durability. Utility Model Content
[0005] In view of this, the technical problem to be solved by this utility model is to provide a micro-pressure tactile splicing paper, which avoids the troubles of poor anti-counterfeiting and unstable interlayer structure in the past.
[0006] To solve the above-mentioned technical problems, this utility model discloses a micro-pressure tactile splicing paper, comprising: The substrate support layer includes an aluminum foil bottom layer bonded with water-based adhesive, a wood pulp paper middle layer, and a PET film top layer; A UV-curable resin layer is embossed on the upper side of the substrate support layer, with one fiber strip embedded in the UV-curable resin layer at a spacing of 10±0.5mm. The TPU film layer is adhered to the UV-cured resin by an epoxy-based adhesive. The TPU film layer has a thickness of 20±2μm and the surface is embossed with raised texture. Multiple TPE microspheres are imprinted and embedded on the surface of the TPU film, with the TPE microspheres spaced apart from the fiber strips. Abrasion-resistant coating applied to the surface of TPE microspheres and TPU films.
[0007] Furthermore, the fiber strip is made of food-grade PET fiber strip with a diameter of 0.1±0.01mm, a length consistent with the width of the inner lining paper, and is partially embedded in the UV-cured resin layer with an embedding depth of 3±0.5μm.
[0008] Furthermore, the UV-curable resin layer is selected from transparent food-grade UV-curable resin, with a layer thickness of 5±1μm, and 3% by mass of 50-100nm silica particles are added to the UV-curable resin layer.
[0009] Furthermore, the raised texture consists of dot-like protrusions with a diameter of 0.5mm, arranged in a linear or arc-shaped pattern.
[0010] Furthermore, the TPE microspheres are temperature-sensitive food-grade TPE microspheres with a particle size of 5-10 μm, a temperature response range of 32-38℃, a thermal volume expansion rate of ≥30%, and conform to the GB 4806.11-2016 standard. The TPE microspheres are distributed longitudinally along the PET fiber strips, with 3 rows of TPE microspheres arranged between every two adjacent PET fiber strips, the row spacing being 3.3 mm, and 5 TPE microspheres arranged in each row. The TPE microspheres are semi-embedded in the TPU film layer, with an embedding depth of 2±0.3 μm.
[0011] Furthermore, the wear-resistant coating is set as a transparent polysiloxane coating with a thickness of 6μm.
[0012] Furthermore, the thickness of the aluminum foil bottom layer is 8±0.3μm, and the thickness of the wood pulp middle layer is 0±2g / m. 2 The base paper is made of food-grade wood pulp, and the top layer of the PET film is a 3±0.2μm food-grade PET film.
[0013] Compared with the prior art, the present invention can achieve the following technical effects: This composite anti-counterfeiting system combines the macroscopic tactile feel of fiber strips, the microscopic tactile feel of raised textures, and the tactile changes of temperature-sensitive TPE microspheres. Consumers can experience the linear protrusions of the fiber strips, the raised texture of the TPU film, and the tactile sensation of the TPE microspheres expanding at body temperature simply by touching them with their fingers. The verification method is intuitive, discreet, and reliable.
[0014] Both the fiber strips and TPE microspheres adopt a "semi-embedded" structure and are covered by an upper wear-resistant coating, preventing the anti-counterfeiting features from being rubbed or scratched off and ensuring the durability of the anti-counterfeiting function. The addition of a UV resin layer with silica and a polysiloxane wear-resistant coating further enhances the surface's wear resistance.
[0015] All materials meet food-grade standards and comply with the hygiene and safety requirements for tobacco packaging.
[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the above-mentioned technical effects at the same time. Attached Figure Description
[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the micro-pressure tactile splicing paper layer according to an embodiment of the present invention; Figure 2 This is a top view schematic diagram showing the distribution of TPE microspheres and PET fiber strips in an embodiment of this utility model.
[0018] Attached Figure Labels
[0019] 1-Substrate support layer; 101-Aluminum foil paper bottom layer; 102-Wood pulp paper middle layer; 103-PET film top layer; 2-UV cured resin layer; 3-Fiber strip; 4-Epoxy adhesive; 5-TPU film layer; 6-Raised texture; 7-TPE microspheres; 8-Abrasion resistant coating. Detailed Implementation
[0020] The following will describe in detail the implementation of this utility model with reference to the accompanying drawings and embodiments, so that the implementation of this utility model can be fully understood and carried out based on how technical means are used to solve technical problems and achieve technical effects.
[0021] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the micro-pressure tactile splicing paper layer according to an embodiment of the present invention; Figure 2 This is a top view schematic diagram showing the distribution of TPE microspheres and PET fiber strips in an embodiment of this utility model.
[0022] As shown in the figure, a micro-pressure tactile splicing paper has the following structure from bottom to top: substrate support layer 1, UV-cured resin layer 2, TPU film layer 5, and wear-resistant coating 8.
[0023] The substrate support layer 1 serves as the foundation for the overall structure, composed of three layers bonded together with an environmentally friendly, food-grade water-based adhesive. The bottom layer is aluminum foil backing 101, with a thickness of 8±0.3μm, primarily providing excellent moisture resistance and light-blocking properties. The middle layer is wood pulp paper middle layer 102, with a basis weight of 40±2g / m³. 2 The food-grade wood pulp base paper provides the inner liner with the necessary stiffness and toughness. The top layer is a PET film top layer 103, a food-grade PET film with a thickness of 3±0.2μm, which provides a smooth, clean, and tough surface, facilitating the subsequent coating and printing of UV resin layers.
[0024] A UV-curable resin layer 2 is coated and imprinted onto the surface of the upper layer 103 of the PET film. This layer uses a transparent, food-grade UV-curable resin with a thickness of 5±1μm. 3% by mass of nano-sized (50-100nm) silica particles are added to the resin to enhance its abrasion resistance and mechanical strength. Before UV curing, food-grade PET fiber strips 3 with a diameter of 0.1±0.01mm are precisely embedded at a spacing of 10±0.5mm, with the embedding depth controlled at 3±0.5μm, so that half of them are embedded in the resin and half protrude from the surface, forming a tactile linear feature.
[0025] The TPU film layer 5 is firmly bonded to the surface of the UV-cured resin layer 2 by an epoxy-based adhesive 4. The TPU film layer 5 has a thickness of 20±2μm and exhibits good elasticity and toughness. On its consumer-facing upper surface, a raised texture 6 with a diameter of 0.5mm is embossed by a mold. These raised dots can be arranged in straight lines or arcs to provide a basic microscopic tactile feel that differs from that of the fiber strips.
[0026] TPE microspheres 7 are semi-embedded on the surface of TPU film layer 5 using an imprinting process, with an embedding depth of 2±0.3μm. For example... Figure 2 As shown, the distribution of these TPE microspheres 7 is staggered from that of the PET fiber strips 3. Specifically, in the area between every two adjacent PET fiber strips 3, three rows of TPE microspheres 7 are regularly distributed, with a spacing of 3.3 mm between the rows, and each row contains five TPE microspheres 7. The TPE microspheres 7 are made of temperature-sensitive food-grade material with a particle size between 5-10 μm. When the temperature is between 32-38℃ (i.e., the temperature range of human fingers), their volume will expand by at least 30%, making the area feel slightly rough and producing a unique temperature-sensitive tactile effect. The elasticity of the TPU film layer 5 provides its deformation effect.
[0027] The outermost wear-resistant coating 8 is a transparent polysiloxane coating with a thickness of 6μm. It completely covers the underlying TPE microspheres 7 and TPU film layer 5, protecting all anti-counterfeiting features and greatly improving the product's abrasion and scratch resistance, ensuring the long-term effectiveness of the tactile anti-counterfeiting features. It is important to understand that the wear-resistant coating 8 has a non-parallel interface, preserving the microscopic tactile feel of the TPE microspheres 7 and the raised texture 6.
[0028] This invention samples and tests the inner lining paper prepared in the above embodiments. Sampling is performed once every 10m², for a total of 20 samplings, resulting in the finished product test table 1, as follows:
[0029] Instructions for use: When verifying the authenticity of cigarettes, consumers can gently touch the surface of the inner lining paper with their fingers. First, they can clearly feel the linear protrusions of the longitudinal fiber strips 3; second, they can feel the fine textured bumps 6 on the TPU film layer 5; finally, under the influence of body heat, the tactile sensation of the touched area (especially the area between the fiber strips) will gradually change from smooth to slightly grainy within a few seconds, due to the thermal expansion of the TPE microspheres 7. This multi-layered, dynamic tactile change is extremely difficult to replicate, providing consumers with an intuitive and reliable means of identification.
[0030] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.
Claims
1. A micro-pressure tactile splicing paper, characterized in that, include: The substrate support layer includes an aluminum foil bottom layer bonded with water-based adhesive, a wood pulp paper middle layer, and a PET film top layer; A UV-curable resin layer is embossed on the upper side of the substrate support layer, wherein one fiber strip is embedded in the UV-curable resin layer at a spacing of 10±0.5mm; The TPU film layer is adhered to the UV-curable resin by an epoxy-based adhesive. The TPU film layer has a thickness of 20±2μm and a raised texture is embossed on its surface. Multiple TPE microspheres are imprinted and embedded on the surface of the TPU film, with the TPE microspheres spaced apart from the fiber strips. A wear-resistant coating applied to the surface of the TPE microspheres and the TPU film.
2. The micro-pressure tactile splicing paper according to claim 1, characterized in that, The fiber strip is a food-grade PET fiber strip with a diameter of 0.1±0.01mm, a length consistent with the width of the inner lining paper, and is partially embedded in the UV-cured resin layer with an embedding depth of 3±0.5μm.
3. The micro-pressure tactile splicing paper according to claim 1, characterized in that, The UV-curable resin layer is selected from transparent food-grade UV-curable resin, with a layer thickness of 5±1μm, and 3% by mass of 50-100nm silica particles are added to the UV-curable resin layer.
4. The micro-pressure tactile splicing paper according to claim 1, characterized in that, The raised texture consists of dot-shaped protrusions with a diameter of 0.5 mm, arranged in a linear or arc-shaped pattern.
5. The micro-pressure tactile splicing paper according to claim 1, characterized in that, The TPE microspheres are temperature-sensitive food-grade TPE microspheres with a particle size of 5-10 μm, a temperature response range of 32-38℃, a thermal volume expansion rate of ≥30%, and conform to GB 4806.11-2016 standard. The TPE microspheres are distributed longitudinally along the PET fiber strips, with 3 rows of TPE microspheres arranged between every two adjacent PET fiber strips, the row spacing being 3.3 mm, and 5 TPE microspheres arranged in each row. The TPE microspheres are semi-embedded in the TPU film layer, with an embedding depth of 2±0.3 μm.
6. The micro-pressure tactile splicing paper according to claim 1, characterized in that, The wear-resistant coating is a transparent polysiloxane coating with a thickness of 6 μm.
7. The micro-pressure tactile splicing paper according to claim 1, characterized in that, The aluminum foil paper bottom layer has a thickness of 8±0.3μm, and the wood pulp paper middle layer has a thickness of 0±2g / m. 2 The base paper is made of food-grade wood pulp, and the upper layer of the PET film is a 3±0.2μm food-grade PET film.