Controllable slow-release sweet and fragrant tipping paper for cigarettes

Abstract

The utility model discloses controllable slow-release sweet and fragrant tipping paper for cigarettes, which comprises a base paper layer, a first temperature-sensitive phase change layer, a delayed slow-release microcapsule, a tail-section perfume layer, a second temperature-sensitive phase change layer and an initial-section perfume layer, and at least two adjacent middle-section perfume slow-release areas and tail-section perfume slow-release areas are arranged on the base paper layer; the first temperature-sensitive phase change layer covers the middle section perfume slow release area of the base paper layer, and concave structures are distributed on the first temperature-sensitive phase change layer at intervals; the delayed slow-release microcapsules are arranged in the sunken structures of the first temperature-sensitive phase change layer, and middle-section flavor spices are arranged in the delayed slow-release microcapsules; the tail section perfume layer covers the tail section perfume slow-release area of the base paper layer; and the second temperature-sensitive phase change layer covers the tail section perfume layer. According to the utility model, different fragrances can be felt at different stages, and richer sensory experience is brought.

Description

Technical Field

[0001] The utility model relates to a controllable slow-release sweet-scented cigarette tipping paper, belonging to the technical field of tipping paper. Background Art

[0002] At present, with the continuous improvement of people's living standards, consumers' requirements for the quality of cigarettes are also increasing day by day. In addition to the traditional taste and smoking flavor, the aroma and flavor of cigarettes have also become important factors affecting consumers' choices. In order to improve the smoking experience of cigarettes, many cigarette manufacturers have made innovations in cigarette tipping papers to enhance the sweet smell of cigarettes, thereby improving the smoking experience.

[0003] After retrieving the prior art, it is found that a Chinese patent with the publication number of CN117338040A discloses a fragrance-loaded slow-release cigarette. In this patent, a phase change layer is used to achieve the slow release of fragrance. However, it is found in the use process that since the phase change of the phase change layer requires a certain amount of time, the fragrance release is insufficient at the initial stage of ignition, and the smoking experience is poor, which affects the initial feeling of the cigarette. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a controllable slow-release sweet-scented cigarette tipping paper, which can achieve different fragrances at different stages and bring a richer sensory experience.

[0005] To solve the above technical problem, the technical solution of the utility model is: a controllable slow-release sweet-scented cigarette tipping paper, comprising:

[0006] A base paper layer, on which at least two adjacent middle-section fragrance slow-release areas and end-section fragrance slow-release areas are provided;

[0007] A first temperature-sensitive phase change layer, which covers the middle-section fragrance slow-release area of the base paper layer, and a plurality of concave structures are distributed at intervals on the first temperature-sensitive phase change layer;

[0008] A plurality of delayed slow-release microcapsules, which are arranged in the corresponding concave structures of the first temperature-sensitive phase change layer, and middle-section flavor fragrances are provided in the delayed slow-release microcapsules;

[0009] An end-section fragrance layer, which covers the end-section fragrance slow-release area of the base paper layer;

[0010] A second temperature-sensitive phase change layer, which covers the end-section fragrance layer;

[0011] An initial-section fragrance layer, which covers the first temperature-sensitive phase change layer and the second temperature-sensitive phase change layer;

[0012] Among them, the phase change temperature of the second temperature-sensitive phase change layer is higher than that of the first temperature-sensitive phase change layer.

[0013] Furthermore, the controllable slow-release sweet-flavored cigarette tipping paper further includes a moisture retention layer, and the moisture retention layer is disposed between the initial-stage fragrance layer and the first temperature-sensitive phase change layer.

[0014] Furthermore, in order to protect the initial-stage fragrance layer, the controllable slow-release sweet-flavored cigarette tipping paper further includes a protective layer, and the protective layer is disposed on the initial-stage fragrance layer.

[0015] Furthermore, the controllable slow-release sweet-flavored cigarette tipping paper further includes a fragrance release channel, and the fragrance release channel is provided with a plurality of first micropores and a plurality of second micropores along the thickness direction, wherein:

[0016] The first micropores extend downward from the upper surface of the protective layer, pass through the initial-stage fragrance layer and penetrate through to the first temperature-sensitive phase change layer;

[0017] The second micropores extend downward from the upper surface of the protective layer, pass through the initial-stage fragrance layer, and extend to the second temperature-sensitive phase change layer.

[0018] Furthermore, the aperture of the second micropores is larger than that of the first micropores.

[0019] Furthermore, in order to prolong the aroma release time of the initial-stage fragrance layer, the thickness of the initial-stage fragrance layer is greater than that of the end-stage fragrance layer.

[0020] Furthermore, a specific material of the second temperature-sensitive phase change layer is provided, and the material of the second temperature-sensitive phase change layer is low-temperature edible paraffin.

[0021] Furthermore, a specific material of the first temperature-sensitive phase change layer is provided, and the material of the first temperature-sensitive phase change layer is phase change hydrogel.

[0022] Furthermore, the middle-stage fragrance slow-release area and the end-stage fragrance slow-release area are alternately arranged in parallel strip shapes on the base paper layer.

[0023] By adopting the above technical solutions, the utility model has the following beneficial effects:

[0024] In the present utility model, the controllable and sustained-release sweet-scented cigarette tipping paper realizes the staged release of spices. In the unlit stage, the initial-stage spice layer first releases aroma to provide a preliminary fragrance experience. When the cigarette is lit, as the temperature rises, the first thermosensitive phase-change layer begins to undergo a phase change, thereby triggering the release of aroma from the delayed-release microcapsules thereon, bringing about a fragrance change in the middle stage. After continuing to smoke for a period of time, the second thermosensitive phase-change layer undergoes a phase change at a higher temperature, and the end-stage spice layer begins to release aroma. Through the design of the first thermosensitive phase-change layer and the second thermosensitive phase-change layer with different phase-change temperatures, the aroma of the delayed-release microcapsules and the end-stage spice layer can be sequentially released during the smoking process, enabling smokers to feel the gradual change of fragrance at different smoking stages, thus bringing a richer and more layered sensory experience.

[0025] In addition, the present utility model further optimizes the release control of spices by adding structures such as a moisture retention layer, a protective layer, and a fragrance release channel. The addition of the moisture retention layer effectively reduces the excessive volatilization of the initial-stage spice layer, thereby prolonging the release time of the initial-stage spice layer; the protective layer provides additional protection for the initial-stage spice layer. The design of the fragrance release channel, combined with micropores of different pore diameters, further precisely controls the fragrance release path and release speed of the middle-stage spice sustained-release area and the end-stage spice sustained-release area, making the release of spices more orderly and controllable.

[0026] In summary, the present utility model enables smokers to feel different fragrance releases at different smoking stages, bringing a richer sensory experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic cross-sectional structure of the controllable and sustained-release sweet-scented cigarette tipping paper of the present utility model Figure 1 ;

[0028] Figure 2 is a schematic cross-sectional structure of the controllable and sustained-release sweet-scented cigarette tipping paper of the present utility model Figure 2 . DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] In order to make the content of the present utility model easier to be clearly understood, the following further detailed description of the present utility model is provided according to specific embodiments in conjunction with the drawings.

[0030] As Figure 1-2 shown, a controllable and sustained-release sweet-scented cigarette tipping paper includes:

[0031] A base paper layer 1, on which there are provided a plurality of adjacent middle-stage spice sustained-release areas and end-stage spice sustained-release areas;

[0032] The first temperature-sensitive phase change layer 2 covers the middle-section fragrance slow-release area of the base paper layer 1, and a plurality of concave structures are arranged at intervals on the first temperature-sensitive phase change layer 2;

[0033] A plurality of delayed slow-release microcapsules 3 are arranged in the corresponding concave structures of the first temperature-sensitive phase change layer 2, and middle-section flavor fragrances are provided in the delayed slow-release microcapsules 3;

[0034] The end-section fragrance layer 4 covers the end-section fragrance slow-release area of the base paper layer 1;

[0035] The second temperature-sensitive phase change layer 5 covers the end-section fragrance layer 4;

[0036] The initial-section fragrance layer 6 covers the first temperature-sensitive phase change layer 2 and the second temperature-sensitive phase change layer 5;

[0037] Among them, the phase change temperature of the second temperature-sensitive phase change layer 5 is higher than that of the first temperature-sensitive phase change layer 2.

[0038] In this embodiment, as Figure 1-2 shown, in the unlit stage of this embodiment, the initial-section fragrance layer 6 first releases the fragrance to provide a preliminary fragrance experience. When the cigarette is lit, as the temperature rises, the first temperature-sensitive phase change layer 2 begins to undergo a phase change, thereby triggering the release of the fragrance from the delayed slow-release microcapsules 3 thereon, bringing about a fragrance change in the middle section. After continuing to smoke for a period of time, the second temperature-sensitive phase change layer 5 undergoes a phase change at a higher temperature, and the end-section fragrance layer 4 begins to release the fragrance. Through the design of the first temperature-sensitive phase change layer 2 and the second temperature-sensitive phase change layer 5 with different phase change temperatures, the fragrance of the delayed slow-release microcapsules 3 and the end-section fragrance layer 4 can be sequentially released during the smoking process, enabling the smoker to feel the gradual change of the fragrance at different smoking stages, thus bringing a richer and more layered sensory experience.

[0039] The middle-section flavor fragrances in the delayed slow-release microcapsules 3, the fragrances of the initial-section fragrance layer 6, and the fragrances of the end-section fragrance layer 4 can adopt the same formula, or different formulas can be selected according to requirements. For example, floral, fruity, and woody fragrances can be used respectively at different stages.

[0040] Specifically, as Figure 1-2 shown, the controllable slow-release sweet-scented cigarette tipping paper further includes a moisture retention layer 7, and the moisture retention layer 7 is arranged between the initial-section fragrance layer 6 and the first temperature-sensitive phase change layer 2.

[0041] In this embodiment, as Figure 1-2As shown, the main function of the moisture retention layer 7 is to maintain the appropriate humidity of the initial spice layer 6, preventing the initial spice layer 6 and the first thermosensitive phase change layer 2 from losing their effectiveness due to drying. The moisture retention layer 7 can be made of hydrophilic materials such as glycerin, propylene glycol, or polyethylene glycol. These materials can absorb and retain moisture, ensuring the stability and release effect of the spices. In addition, the moisture retention layer 7 can also play a buffering role, reducing the direct contact between the initial spice layer 6 and the first thermosensitive phase change layer 2, and avoiding possible chemical reactions or mutual influences between the two layers.

[0042] Specifically, as Figure 1 shown, the controllable slow-release sweet-scented cigarette tipping paper further includes a protective layer 8, and the protective layer 8 is arranged on the initial spice layer 6.

[0043] In this embodiment, as Figure 1 shown, the main function of the protective layer 8 is to provide physical protection for the entire embodiment, preventing the direct influence of the external environment on the initial spice layer and other layers. The protective layer 8 is usually made of heat-resistant, wear-resistant, and non-toxic materials such as food-grade polymers or modified cellulose to ensure that no harmful substances are generated during use.

[0044] Specifically, as Figure 1 shown, the controllable slow-release sweet-scented cigarette tipping paper further includes a fragrance release channel. The fragrance release channel is provided with a plurality of first micropores 9a and a plurality of second micropores 9b along the thickness direction, where:

[0045] The first micropores 9a extend downward from the upper surface of the protective layer 8, pass through the initial spice layer 6, and penetrate through to the first thermosensitive phase change layer 2;

[0046] The second micropores 9b extend downward from the upper surface of the protective layer 8, pass through the initial spice layer 6, and extend to the second thermosensitive phase change layer 5.

[0047] Specifically, as Figure 1 shown, the pore diameter of the second micropores 9b is larger than the pore diameter of the first micropores 9a.

[0048] In this embodiment, as Figure 1-2As shown, the pore diameter of the second micropore 9b is larger than that of the first micropore 9a, which helps to regulate the release rate of the fragrance at different stages. The second micropore 9b with a larger pore diameter allows the fragrance at the end section of the end fragrance layer to be released more quickly, while the first micropore 9a with a smaller pore diameter can delay the release rate of the fragrance in the middle section. This design ensures that different fragrance levels can be continuously felt during the smoking process, providing a richer sensory experience. During actual use, as the temperature rises, the first thermosensitive phase change layer 2 and the second thermosensitive phase change layer 5 will undergo phase changes in sequence. Since the phase change temperature of the second thermosensitive phase change layer 5 is higher, in the initial stage, the fragrance in the middle section is mainly released through the first micropore 9a. As the temperature continues to rise, after the second thermosensitive phase change layer 5 undergoes a phase change, the fragrance at the end section is quickly released through the larger second micropore 9b, forming a high point of fragrance.

[0049] Specifically, as Figure 1 shown, the thickness of the initial fragrance layer 6 is greater than that of the end fragrance layer 4.

[0050] In this embodiment, as Figure 1 shown, the initial fragrance layer 6 is thicker, which can provide sufficient and lasting fragrance at the initial stage of smoking, giving users a good first impression and laying a foundation fragrance for the entire smoking process. In contrast, the end fragrance layer 4 is thinner, which can ensure that there is still enough fragrance released in the later stage of smoking, but it will not be too strong, avoiding sudden changes or excessive accumulation of fragrance. Secondly, the thinner end fragrance layer 4 is conducive to the rapid release of the fragrance. In addition, this thickness difference also helps to control production costs.

[0051] Specifically, as Figure 1 shown, the material of the second thermosensitive phase change layer 5 is low-temperature edible paraffin wax.

[0052] Specifically, as Figure 1 shown, the material of the first thermosensitive phase change layer 2 is phase change hydrogel.

[0053] In this embodiment, as Figure 1 shown, the phase change temperature of the low-temperature edible paraffin wax used in this embodiment is about 45 degrees, and the phase change temperature of the phase change hydrogel is about 35 degrees.

[0054] Specifically, as Figure 1 shown, the middle fragrance slow-release area and the end fragrance slow-release area are alternately arranged in parallel strip shapes on the base paper layer 1.

[0055] In this embodiment, the structure arranged in parallel strips ensures that during the smoking process, the flavorings at different stages can be released simultaneously while remaining relatively independent, thus creating a distinct flavor change with clear layers. In practical applications, the width ratio of the middle-stage flavoring slow-release area to the end-stage flavoring slow-release area can be adjusted according to specific product requirements. For example, a wider middle-stage flavoring slow-release area and a narrower end-stage flavoring slow-release area can be designed to ensure sufficient flavoring release in the middle stage of smoking and provide a slight flavor change at the end stage. Additionally, a transition area can be considered to be added between the two slow-release areas, or a gradually changing strip structure can be designed to achieve a smoother and more natural flavor transition.

[0056] The specific embodiments described above further elaborate on the technical problems solved, technical solutions, and beneficial effects of the present utility model. It should be understood that the above are only specific embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A controllable slow-release sweet-scented cigarette tipping paper, characterized in that, Comprising: A base paper layer (1), on which there are provided at least two adjacent middle-section fragrance slow-release areas and end-section fragrance slow-release areas; A first temperature-sensitive phase change layer (2), which covers the middle-section fragrance slow-release area of the base paper layer (1), and there are a plurality of recessed structures distributed at intervals on the first temperature-sensitive phase change layer (2); A plurality of delayed slow-release microcapsules (3), which are arranged in the corresponding recessed structures of the first temperature-sensitive phase change layer (2), and middle-section flavor fragrances are provided in the delayed slow-release microcapsules (3); An end-section fragrance layer (4), which covers the end-section fragrance slow-release area of the base paper layer (1); A second temperature-sensitive phase change layer (5), which covers the end-section fragrance layer (4); A start-section fragrance layer (6), which covers the first temperature-sensitive phase change layer (2) and the second temperature-sensitive phase change layer (5); Wherein, the phase change temperature of the second temperature-sensitive phase change layer (5) is higher than that of the first temperature-sensitive phase change layer (2).

2. The controllable slow-release sweet fragrance cigarette tipping paper according to claim 1, characterized in that It further includes a moisture retention layer (7), and the moisture retention layer (7) is arranged between the start-section fragrance layer (6) and the first temperature-sensitive phase change layer (2).

3. The controllable slow-release sweet fragrance cigarette tipping paper according to claim 1, characterized in that It further includes a protective layer (8), and the protective layer (8) is arranged on the start-section fragrance layer (6).

4. The controllable slow-release sweet fragrance cigarette tipping paper according to claim 3, characterized in that It further includes a fragrance release channel, and the fragrance release channel is provided with a plurality of first micropores (9a) and a plurality of second micropores (9b) along the thickness direction, wherein: The first micropores (9a) extend downward from the upper surface of the protective layer (8), pass through the start-section fragrance layer (6) and penetrate through to the first temperature-sensitive phase change layer (2); The second micropores (9b) extend downward from the upper surface of the protective layer (8), pass through the start-section fragrance layer (6), and extend to the second temperature-sensitive phase change layer (5).

5. The controllable slow-release sweet fragrance cigarette tipping paper according to claim 4, characterized in that The aperture of the second micropores (9b) is larger than that of the first micropores (9a).

6. The controllable slow-release sweet fragrance cigarette tipping paper according to claim 1, characterized in that The thickness of the start-section fragrance layer (6) is greater than that of the end-section fragrance layer (4).

7. The controllable slow-release sweet fragrance cigarette tipping paper according to claim 1, characterized in that The material of the second temperature-sensitive phase change layer (5) is low-temperature edible paraffin.

8. The controllable slow-release sweet fragrance cigarette tipping paper according to claim 1, characterized in that The material of the first temperature-sensitive phase change layer (2) is a phase change hydrogel.

9. The controllable slow-release sweet fragrance cigarette tipping paper according to claim 1, characterized in that The middle-section fragrance slow-release area and the end-section fragrance slow-release area are alternately arranged in parallel strip shapes on the base paper layer (1).

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