A cigarette with a 3D printed fragrance-carrying model and a preparation method thereof

Abstract

The present invention provides a cigarette with a 3D printed fragrance-carrying model, the cigarette comprising a filter rod with a window and a cigarette body, the filter rod with a window being provided with a 3D printed fragrance-carrying model, the 3D printed fragrance-carrying model being prepared by 3D printing of flavors and printing materials, the printing materials being selected from a composite material of at least one of polyethylene, polycaprolactone and chlorinated polypropylene and polylactic acid. The present invention applies 3D printing technology to cigarettes, and uses 3D printing technology to prepare a three-dimensional model, which is placed in the filter rod. A three-dimensional fragrance-carrying model is developed to replace bursting beads, giving window cigarettes a new visual impact effect; the three-dimensional model has the functions of adding color and carrying fragrance, and can respond to the cigarette design concept in many aspects. In addition, the present invention selects a specific type of printing material, which can significantly improve the embedding efficiency of the flavor while having a good molding effect.

Description

Technical Field

[0001] The invention belongs to the technical field of cigarettes, and in particular relates to a cigarette with a 3D printed fragrance-carrying model and a preparation method thereof. Background Art

[0002] Popping bead cigarettes refer to cigarettes with flavored liquid added to the filter tip. When smoking popping bead cigarettes, you must squeeze the beads inside the popping bead cigarettes to pop them. In this way, when you inhale them into your mouth, the smoke will have a fragrance. This fragrance has fruity and floral scents, and each brand of popping bead cigarettes is different. The flavors of popping bead cigarettes sold on the market are also developing in a diversified state, which dilutes the smoky ingredients emitted to a certain extent to achieve the purpose of aroma relief. Summary of the invention

[0003] In view of this, the technical problem to be solved by the present invention is to provide a cigarette with a 3D printed fragrance-carrying model and a preparation method thereof. The present invention adopts a 3D fragrance-carrying model to replace the bursting beads, giving the window cigarettes a new visual impact effect. The three-dimensional model has the functions of adding color and carrying fragrance, which can echo the cigarette design concept in many aspects.

[0004] The present invention provides a cigarette with a 3D printed flavor carrier model, the cigarette comprising a filter rod with a window and a cigarette body, the filter rod with a window is provided with a 3D printed flavor carrier model, the 3D printed flavor carrier model is prepared by 3D printing of flavor and printing material, the printing material is selected from a composite material of at least one of polyethylene, polycaprolactone and chlorinated polypropylene and polylactic acid.

[0005] Preferably, the filter rod with a window comprises:

[0006] Two sections of filter rod tow, and a transparent cavity arranged between the two sections of filter rod tow; a 3D printed fragrance carrier model is arranged in the transparent cavity;

[0007] The tipping paper wraps two sections of filter rod tow, and the tipping paper has a transparent visible window at a position corresponding to the transparent cavity of the filter rod.

[0008] Preferably, the mass ratio of at least one of the polyethylene, polycaprolactone and chlorinated polypropylene to polylactic acid is (2-3): (1-2).

[0009] Preferably, the printing material is selected from a composite material of polylactic acid and chlorinated polypropylene in a mass ratio of 3:1;

[0010] The printing material is selected from a composite material of polylactic acid and polyethylene in a mass ratio of 2:1;

[0011] The printing material is selected from a composite material of polylactic acid, chlorinated polypropylene and polycaprolactone in a mass ratio of 3:1:1.

[0012] Preferably, the flavor is selected from monomer flavors or compound flavors, preferably one or more of raspberry ketone, menthol, cantaloupe flavor and blueberry flavor.

[0013] Preferably, the proportion of flavor in the 3D printed flavor carrier model is 10 ppm~0.1 μl / cigarette.

[0014] Preferably, the height of the transparent cavity is 3-5 mm and the volume is 31.5-100 mm 3 .

[0015] Preferably, the 3D printed incense carrier model is selected from a three-dimensional model with the appearance of Yellow Crane Tower, a cylinder, a cone, a hexahedron, or a heart-shaped cross-section.

[0016] Preferably, the cigarette is selected from conventional cigarettes, large and medium cigarettes or slim cigarettes.

[0017] The present invention also provides a method for preparing the above-mentioned cigarette having a 3D printed fragrance-carrying model, comprising the following steps:

[0018] A) mixing the essence with the printing material and heating it to obtain a mixed molten material;

[0019] The mixed molten material is placed in a 3D printer for 3D printing to obtain a 3D printed fragrance carrier model;

[0020] B) placing the 3D printed fragrance carrier model in a transparent cavity of a filter rod with a viewing window to obtain a filter rod;

[0021] C) Connecting the filter rod to the cigarette body to obtain a cigarette with a 3D printed fragrance carrier model.

[0022] Compared with the prior art, the present invention provides a cigarette with a 3D printed fragrance-carrying model, the cigarette comprising a filter rod with a window and a cigarette body, the filter rod with a window is provided with a 3D printed fragrance-carrying model, the 3D printed fragrance-carrying model is prepared by 3D printing of flavors and printing materials, the printing materials are selected from a composite material of at least one of polyethylene, polycaprolactone and chlorinated polypropylene and polylactic acid. The present invention applies 3D printing technology to cigarettes, uses 3D printing technology to prepare a three-dimensional model, and places it in the filter rod. Developing a three-dimensional fragrance-carrying model to replace the bursting beads gives the window cigarette a new visual impact effect; the three-dimensional model has the functions of adding color and carrying fragrance, which can echo the cigarette design concept in many aspects. In addition, the present invention selects a specific type of printing material, which can significantly improve the embedding efficiency of the flavor while having a good molding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1A schematic diagram of a cigarette provided by the present invention;

[0024] Figure 2 Schematic diagram of transparent cavity structure in cigarettes of different specifications;

[0025] Figure 3 CAD digital design drawing of the Yellow Crane Tower;

[0026] Figure 4 Menthol retention rate for 12 months. DETAILED DESCRIPTION

[0027] The present invention provides a cigarette with a 3D printed flavor carrier model, the cigarette comprising a filter rod with a window and a cigarette body, the filter rod with a window is provided with a 3D printed flavor carrier model, the 3D printed flavor carrier model is prepared by 3D printing of flavor and printing material, the printing material is selected from a composite material of at least one of polyethylene, polycaprolactone and chlorinated polypropylene and polylactic acid.

[0028] In the present invention, the filter rod with a window comprises:

[0029] Two sections of filter rod tow, and a transparent cavity arranged between the two sections of filter rod tow;

[0030] A 3D printed incense carrier model is arranged in the transparent cavity;

[0031] The tipping paper wraps two sections of filter rod tow, and the tipping paper has a transparent visible window at a position corresponding to the transparent cavity of the filter rod.

[0032] See also Figure 1 , Figure 1 A schematic diagram of a cigarette provided by the present invention, wherein from left to right are a photo of a cigarette (wherein a 3D printed fragrance carrier model is not set in the transparent cavity), an enlarged view of a filter rod with a window, a schematic diagram of a 3D printed fragrance carrier model, and a rendering of a cigarette after a 3D printed fragrance carrier model is set in the transparent cavity of the cigarette.

[0033] In the present invention, the height of the transparent cavity is 3-5 mm, preferably 3, 3.5, 4, 4.5, 5, or any value between 3-5 mm, and the volume is 31.5-100 mm 3 .

[0034] The size of the transparent cavity is adjusted according to the specifications of the cigarette, and the cigarette of the present invention is selected from conventional cigarettes, large and medium cigarettes or slim cigarettes. When the cigarette is a conventional cigarette, the volume of the transparent cavity is 100mm 3 When the cigarette is a large or medium cigarette, the volume of the transparent cavity is 56 mm 3When the cigarette is a slim cigarette, the volume of the transparent cavity is 31.5 mm 3 . See Figure 2 , Figure 2 Schematic diagram of the transparent cavity structure in cigarettes of different specifications.

[0035] In the field of cigarettes, no matter what size of cigarettes, the volume of the required three-dimensional model is very small. This requires fine CAD modeling of the printed three-dimensional model to form a 3D or 2D model, so as to print a small size, high precision, high-quality three-dimensional model.

[0036] In some specific embodiments of the present invention, the 3D printed incense carrier model is selected from a three-dimensional model with the appearance of the Yellow Crane Tower, a cylinder, a cone, a hexahedron, or a heart-shaped cross-section. Figure 3 , Figure 3 This is the CAD digital design drawing of the Yellow Crane Tower.

[0037] For this reason, the three-dimensional models used in cigarettes have small size, so not only high requirements for precision are required, but also certain requirements for material safety, flavor encapsulation efficiency, and flavor sustained-release performance.

[0038] Therefore, the printing material selected in the present invention is a composite material of at least one of polyethylene, polycaprolactone and chlorinated polypropylene and polylactic acid.

[0039] The composite material has good molding effect, high printing accuracy, and is safe, and has high embedding efficiency and release efficiency for flavors.

[0040] In the present invention, the mass ratio of at least one of polyethylene, polycaprolactone and chlorinated polypropylene to polylactic acid is (2-3): (1-2).

[0041] In some specific embodiments of the present invention, the printing material is selected from a composite material of polylactic acid and chlorinated polypropylene in a mass ratio of 3:1;

[0042] In some specific embodiments of the present invention, the printing material is selected from a composite material of polylactic acid and polyethylene in a mass ratio of 2:1;

[0043] In some specific embodiments of the present invention, the printing material is selected from a composite material of polylactic acid, chlorinated polypropylene and polycaprolactone in a mass ratio of 3:1:1.

[0044] In the present invention, the flavor is selected from monomer flavors or compound flavors, preferably one or more of raspberry ketone, menthol, cantaloupe flavor and blueberry flavor.

[0045] The proportion of flavor in the 3D printed fragrance-carrying model is 10ppm~0.1 microliter per cigarette.

[0046] The present invention also provides a method for preparing the above-mentioned cigarette having a 3D printed fragrance-carrying model, comprising the following steps:

[0047] A) mixing the essence with the printing material and heating it to obtain a mixed molten material;

[0048] The mixed molten material is placed in a 3D printer for 3D printing to obtain a 3D printed fragrance carrier model;

[0049] B) placing the 3D printed fragrance carrier model in a transparent cavity of a filter rod with a viewing window to obtain a filter rod;

[0050] C) Connecting the filter rod to the cigarette body to obtain a cigarette with a 3D printed fragrance carrier model.

[0051] Specifically, the printing material and the flavor are mixed, and according to the needs of the 3D printing processing operation, the material mixing ratio is installed through the feeding equipment and transported to the mixing equipment respectively during actual use, and the materials are stirred and mixed by the mixing equipment. During the mixing process, the material temperature is heated to 40°C~80°C within 5~20 minutes, and then the stirring state of the material is continued after the material stirring and mixing operation is completed, and it is set aside; then kneading is performed, and the above-mentioned mixed material is kneaded continuously for 10~30 minutes through the kneading equipment, so that the mixed material is molten and then kept warm for use.

[0052] Then, the mixed molten material is placed in a 3D printer for 3D printing and molding to obtain a 3D printed fragrance carrier model.

[0053] Next, the 3D printed fragrance carrier model is placed in the transparent cavity of a filter rod with a viewing window to obtain a filter rod;

[0054] Finally, the filter rod is connected to the cigarette body to obtain a cigarette with a 3D printed fragrance-carrying model.

[0055] The present invention has no special restrictions on the preparation method of the two sections of filter rod tow in the filter rod and the cigarette body, and any method known to those skilled in the art can be used.

[0056] The present invention applies 3D printing technology to cigarettes, uses 3D printing technology to prepare a three-dimensional model, and places it in the filter rod. Developing a three-dimensional fragrance-carrying model to replace the popping beads gives the window cigarettes a new visual impact effect; the three-dimensional model has the functions of adding color and carrying fragrance, which can echo the cigarette design concept in many aspects. In addition, the present invention selects a specific type of printing material, which can significantly improve the embedding efficiency of the flavor while having a good molding effect.

[0057] In order to further understand the present invention, the cigarette with a 3D printed fragrance-carrying model provided by the present invention, its preparation method and application are described below in conjunction with embodiments. The protection scope of the present invention is not limited by the following embodiments. Example

[0058] 1. See Table 1, which shows the ratio, appearance and molding effect of different types of printing materials after printing.

[0059] Among them, printing parameters: print head 210 degrees Celsius printing platform 60 degrees Celsius.

[0060]

[0061] 2. Preparation of 3D printed incense carrier model

[0062] The printing material and the flavor are mixed, and according to the needs of the 3D printing processing operation, the material mixing ratio is installed through the feeding equipment and transported to the mixing equipment respectively during actual use. The materials are stirred and mixed by the mixing equipment, and during the mixing process, the material temperature is heated to 60°C within 10 minutes, and then the stirring state of the material is kept unchanged after the material stirring and mixing operation is completed; then kneading is performed, and the above-mentioned mixed material is kneaded continuously for 20 minutes through the kneading equipment, so that the mixed material is molten and then kept warm for use for 3D printing.

[0063] The project evaluated the fragrance effect of the monomer fragrance menthol. The measurement method, encapsulation rate and retention rate used are as follows:

[0064] ① Determination of menthol encapsulated in three-dimensional aroma model

[0065] Weigh 1 g of the three-dimensional fragrance model sample, wash it six times with 30 mL of 50% (volume fraction) ethanol-water solution, pour the washing liquid into a 100 mL volumetric flask, dilute to the mark with ethanol-water solution, shake well, take 1 mL of the solution and put it into a 10 mL test tube, add 5 mL of the colorimetric agent 5 mg / mL sulfuric acid solution of p-dimethylaminobenzaldehyde, determine the absorbance at 550 nm according to the above steps, and determine the menthol content on the surface of the three-dimensional fragrance model sample according to the standard curve.

[0066] ②Menthol working curve

[0067] The standard working curve of menthol was drawn by plotting the absorbance (A) against the menthol concentration (C), and the regression equation was obtained, A=0.0064C+0.0574(r 2 = 0.9996).

[0068] ③ Calculate the embedding rate of menthol in the three-dimensional fragrance carrier model according to the following formula:

[0069] Embedding rate (%) = menthol content of three-dimensional aroma carrier model / designed amount of menthol in three-dimensional aroma carrier model × 100%

[0070]

[0071] It can be seen from Table 2 that the menthol three-dimensional aroma carrier model prepared with different materials can well ensure that menthol is effectively embedded. When the designed menthol loading is the same (30%), the menthol content in the prepared menthol three-dimensional aroma carrier model varies according to the material. The encapsulation rate of the single carrier material is between 74-78%, while the encapsulation rate of the formulated carrier material is higher than that of the single carrier material. Between 84-97%, among which, the carrier material of polylactic acid: chlorinated polypropylene: polycaprolactone = 3:1:1 has a higher encapsulation rate than other carrier materials. It can also be seen from the above table that, under other conditions unchanged, with the increase of menthol feed amount, the menthol content gradually increases, but its embedding rate tends to decrease.

[0072] ④. Determination of menthol retention rate in three-dimensional aroma carrier model

[0073] A certain amount of three-dimensional fragrance carrier models are placed under indoor environmental conditions (temperature about 25°C, humidity 60%), and the menthol content in the three-dimensional fragrance carrier models is measured at regular intervals. The ability of the three-dimensional fragrance carrier models to retain menthol is determined based on the measurement results at the beginning of storage and after a period of time.

[0074] The retention rate of menthol in the three-dimensional aroma carrier model was calculated according to the following formula:

[0075] Retention rate (%) = menthol content of the three-dimensional fragrance model during storage / menthol content of the three-dimensional fragrance model before storage × 100%

[0076] The material ratio is polylactic acid: chlorinated polypropylene: polycaprolactone = 3:1:1. When the designed menthol addition amount is 30%, the prepared three-dimensional fragrance carrier model is tested for 12-month menthol retention rate according to the above method. At the same time, menthol with the same proportion content is used as non-sustained-release menthol for comparative testing. The results are as follows Figure 4 .

[0077] Depend on Figure 4 It can be seen that the storage time affects the retention rate of menthol in the three-dimensional aroma model. The menthol content in the three-dimensional aroma model prepared with different menthol loadings decreases with the increase of storage time, but the retention rate of the three-dimensional aroma model is above 80% after storage for 90 days, and the reduction of menthol content is small, indicating that the menthol wrapped in the three-dimensional aroma model is relatively stable. Under the same conditions, menthol will show a linear downward trend after being placed for 12 months, and only 4.29% will remain after 12 months.

[0078] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A cigarette with a 3D printed fragrance carrier model, characterized in that: The cigarette includes a filter rod with a window and a cigarette body. A 3D printed fragrance carrier model is arranged in the filter rod with a window. The 3D printed fragrance carrier model is prepared by 3D printing of flavor and printing material. The printing material is selected from a composite material of polylactic acid, chlorinated polypropylene and polycaprolactone in a mass ratio of 3:1:

1.

2. The cigarette according to claim 1, characterized in that: The filter rod with a viewing window comprises: Two sections of filter rod tow, and a transparent cavity arranged between the two sections of filter rod tow; a 3D printed fragrance carrier model is arranged in the transparent cavity; The tipping paper wraps two sections of filter rod tow, and the tipping paper has a transparent visible window at a position corresponding to the transparent cavity of the filter rod.

3. The cigarette according to claim 1 or 2, characterized in that: The fragrance is selected from monomeric fragrances or compound fragrances.

4. The cigarette according to claim 1 or 2, characterized in that: The flavor is one or more of raspberry ketone, menthol, cantaloupe flavor and blueberry flavor.

5. The cigarette according to claim 1 or 2, characterized in that: The proportion of flavor in the 3D printed fragrance-carrying model is 10ppm~0.1 microliter per cigarette.

6. The cigarette according to claim 2, characterized in that: The height of the transparent cavity is 3-5 mm and the volume is 31.5-100 mm 3 .

7. The cigarette according to claim 1 or 2, characterized in that: The 3D printed incense carrier model is selected from a three-dimensional model with the appearance of Yellow Crane Tower, a cylinder, a hexahedron, or a heart-shaped cross-section.

8. The cigarette according to claim 1 or 2, characterized in that: The 3D printed incense-carrying model is selected from a vertebral body.

9. The cigarette according to claim 1 or 2, characterized in that: The cigarette is selected from conventional cigarettes, large and medium cigarettes or slim cigarettes.

10. A method for preparing a cigarette having a 3D printed fragrance-carrying model according to any one of claims 1 to 9, characterized in that: The following steps are involved: A) mixing the essence with the printing material and heating it to obtain a mixed molten material; The mixed molten material is placed in a 3D printer for 3D printing to obtain a 3D printed fragrance carrier model; B) placing the 3D printed fragrance carrier model in a transparent cavity of a filter rod with a viewing window to obtain a filter rod; C) Connecting the filter rod to the cigarette body to obtain a cigarette with a 3D printed fragrance carrier model.

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