33 results about "Cigarette burn" patented technology

A method for evaluating the possibility of a cigarette burning cone to fall off is disclosed. The method uses a manipulator simulation device to simulate the smoking of a cigarette, and measures the maximum deviation of the cigarette burning cone, and then uses angle summing and averaging to add the maximum deviations of the cigarette burning cones measured for multiple cigarettes and obtain an average value, and then evaluates the possibility of the cigarette burning cone to fall by the average value of the maximum deviations of the cigarette burning cone. The method is new, and compared with an existing method using state information of the cigarette burning cone “falling” and “not falling,” the method can more accurately, directly and timely reflect the state of the cigarette burning cone.

The embodiment of the invention discloses an image splicing method, device and equipment for a cigarette combustion cone, a medium and a product. The method comprises the following steps: acquiring to-be-processed images of the cigarette combustion cone under at least two shooting angles, and preprocessing each to-be-processed image to obtain a corresponding to-be-used image; according to the cigarette center line and the image retention ratio of each to-be-used image, determining an image retention area of each to-be-used image; and according to the cone top and the bottom edge of the cigarette combustion cone in each image reservation area, sequentially splicing all the image reservation areas to obtain a combustion cone panoramic image corresponding to the cigarette combustion cone. The problem that the panoramic form of the cigarette combustion cone cannot be obtained based on single-face shooting at present is solved, and the effect of obtaining the accurate panoramic form of the cigarette combustion cone by reconstructing the panoramic image of the cigarette combustion cone is achieved.

The utility model relates to the technical field of cigarette combustion cone falling detection, and discloses a cigarette combustion cone falling detection device. The detection device comprises a detection assembly (1), an exhaust fan (204), a cigarette holder (303) and a camera (305). The detection assembly (1) comprises a box body and an infrared distance sensor (102); the cigarette holder (303) and the infrared distance sensor (102) are located in the box body, and the infrared distance sensor (102) is configured to test the length of a cigarette in the box body; the camera (305) is mounted at the top of the box body and is used for shooting the combustion condition of the cigarettes in the box body in real time; the exhaust fan (204) is in airflow communication with the cigarette holder (303) to extract smoke generated by cigarette combustion. According to the application, a to-be-detected cigarette can be mounted on the mounting block through the mounting pipe and the cigarette holder, the combustion rate of the cigarette can be accelerated through suction force generated by the exhaust fan, and the falling of a cigarette combustion cone can be quickly detected in cooperation with the camera and the infrared distance sensor.

The invention discloses an environmentally friendly pipe, a smoking device for smoking, characterized in that: a cigarette is built into the pipe, part of the tobacco of the cigarette is separated during smoking, and then the separated tobacco is ignited, and the ashes after burning enter the ashes container, and a cycle is repeated when smoking again. During use, the cigarette burns briefly in a relatively closed space, solving the problems of generating open flames, ashes, and harming the surrounding environment during the current smoking process. The environmentally friendly pipe is provided with a smoke filter device, which can perform secondary filtering on harmful components such as nicotine and smoke oil in the smoke, reducing the impact of smoking on human health. The environmentally friendly pipe is additionally provided with a mobile phone APP intelligent control function, and the working program of the environmentally friendly pipe is controlled by the mobile phone, and the working status of the environmentally friendly pipe is displayed through the mobile phone APP, which is a creative reform of the smoking method.

The utility model discloses an automatic cigarette cleaning device which comprises a controller, a base, at least one mechanical arm assembly arranged on the base and a tray arranged below the base, and the position of each mechanical arm assembly corresponds to the position of a corresponding cigarette clamping unit on cigarette combustion equipment; the mechanical arm assembly comprises a body arranged on the base in a sliding mode and a mechanical arm rotationally arranged on the body. The controller is in signal connection with actuators of a first driving mechanism for driving the manipulator to be close to or away from the corresponding cigarette clamping unit, a second driving mechanism for driving the manipulator to rotate relative to the body and a third driving mechanism for driving the manipulator to be opened and closed. The manipulator is automatically controlled by the controller to get close to the cigarette clamping unit to take down the cigarette butts, so that the cigarette clamping unit is automatically cleaned.

The application provides a method for detecting a burning cone shape and porosity, comprising: obtaining a CT tomographic image of a cigarette sample after burning and performing three-dimensional reconstruction to obtain a three-dimensional reconstruction image; performing image segmentation processing on the three-dimensional reconstruction image to obtain a three-dimensional image and a point cloud data set of a cigarette burning cone part; calculating the height and maximum offset degree of the burning cone based on the point cloud data set of the cigarette burning cone part; and calculating the volume and porosity of the burning cone based on the three-dimensional image of the cigarette burning cone part.

The present invention relates to an image acquisition device for a smoking path simulation system, and belongs to the technical field of cigarette detection equipment. The device includes a manipulator, a frame body fixedly connected to the working end of the manipulator and having N support rods, N cameras respectively fixedly connected to different support rods and with lenses facing the working end of the manipulator, and N fill lights respectively fixedly connected to different support rods and with light sources facing the working end of the manipulator; wherein N≥2. The device of the present invention utilizes fill lights and a camera to dynamically acquire images in real time under the action of the smoking path of the manipulator, thereby effectively improving the accuracy of the detection of the burning ash characteristics of cigarettes. The present invention is suitable for image acquisition in smoking path simulation systems of various types of cigarettes.

The smoke burning equipment provided by the utility model comprises a charging device and a smoke burning device, the charging device is provided with a plurality of charging bins, each charging bin is provided with a charging end, and the charging ends are used for charging electronic cigarettes placed in the charging bins; the cigarette burning device comprises a first conveying mechanism and a plurality of cigarette burning mechanisms, the input end of the first conveying mechanism is in butt joint with the charging device, the first conveying mechanism is used for receiving the charged electronic cigarettes and conveying the electronic cigarettes, and the plurality of cigarette burning mechanisms are arranged in the conveying direction of the first conveying mechanism; the two electronic cigarette burning devices are respectively used for burning the electronic cigarette. According to the cigarette burning equipment, the electronic cigarette can be charged to ensure that the electric quantity of the electronic cigarette is sufficient before cigarette burning, multiple cigarette burning procedures can be achieved for the electronic cigarette through the multiple cigarette burning mechanisms, and the reliability and stability of the electronic cigarette can be improved.

The application provides a cigarette combustion cone maximum length detection method, and belongs to the technical field of cigarette detection. The cigarette combustion cone maximum length detection method adjusts the cigarette measurement environment; fixes the cigarette on a smoking machine, installs a high-definition camera in the position directly in front of the smoking machine, records a video by using the high-definition camera during the process of the smoking machine sucking the cigarette; establishes a cigarette combustion cone length inversion model, clearly processes the video data, analyzes the video data, obtains the distance between the cigarette combustion line and the combustion cone end during the process of sucking the cigarette, compares the distance, and obtains the maximum distance between the cigarette combustion line and the combustion cone end; repeats the above operation under the same environment; and the cigarette combustion cone maximum length detection method can solve the problem that the traditional measurement of the cigarette combustion cone length is a dynamic process, which causes the measurement result accuracy to be insufficient.

The utility model relates to a suction nozzle with a color changing function, which comprises a suction nozzle part, a cigarette connecting part connected with a cigarette and a color changing part changing color along with temperature change, the cigarette connecting part is provided with a groove for accommodating the cigarette, and the color changing part is arranged between the suction nozzle part and the cigarette connecting part. The color change of the color changing part can be seen on the surface of the color changing part, a smoke channel for smoke to pass through is arranged in the color changing part, smoke of a cigarette passes through the smoke channel of the color changing part, a smoke through hole is formed in the bottom of the cigarette connecting part, and an airflow channel is arranged in the suction nozzle part. According to the suction nozzle with the color changing function, the temperature of the filter stick can be better mastered through the color change of the color changing part, the closer the cigarette is burnt, the higher the temperature is, and the color change is more obvious, so that the safety prompt of smoking is facilitated. Meanwhile, due to the fact that in the smoking process, the user can visually feel the color change, and certain interestingness is brought.

The utility model discloses a cigarette smoke generating device which comprises a circular box, a box cover, a water storage drawer, an electric push rod, a lifting platform, a cigarette base and a cigarette lighter. The cigarette holder can support combustion and fuming of a plurality of cigarettes at the same time, the single-time fuming amount is effectively increased, the large-scale smoke requirement can be met, fuming of all the cigarettes can be completed at a time, and different test requirements are met; the cigarette automatically falls into water after being burnt out, so that the safety is ensured; the device also has an automatic lifting fire extinguishing function, so that the safety is further ensured; residual cigarette ash can be cleaned by automatically lifting the cigarette base, so that the cleaning and maintenance frequency is reduced, and rapid and continuous fuming test is realized; the device is simple in structure and easy to operate and use.

The application discloses a cigarette design and preparation method based on dynamic resistance per puff and cigarette density, comprising the following steps: obtaining the corresponding relationship between the cigarette length and the cigarette density by testing the cigarette multiple times by using a standard test method; obtaining the dynamic resistance per puff value of the cigarette in the whole smoking process; correlating the cigarette density and the dynamic resistance per puff value, and designing the corresponding distance of the cigarette paper, the combustion-supporting agent content of different areas and the coating position, and finally obtaining the cigarette product with stable resistance per puff in the puffing process; and the cigarette paper combustion-supporting agent is designed to regulate the uniformity per puff in the smoking process according to the correlation between the tobacco density distribution of the cigarette and the dynamic resistance per puff value obtained in the cigarette burning and smoking process, so that the design and regulation of the cigarette paper are participated, and the development has guiding significance before the production of the cigarette product.

The application provides a preparation method of a water storage and release material for humidifying cigarette smoke, and comprises the following steps: mixing and reacting a water retention material and a cross-linking agent to obtain a hydrogel; the water retention material comprises one or more of hyaluronic acid, collagen, sodium alginate, polyacrylamide, polyethylene glycol or sodium polyacrylate; a low-temperature phase change material is melted into a liquid state or dissolved by a solvent to obtain a coating liquid; the hydrogel is immersed in the coating liquid, coated or dropped by a coaxial double-core dripping head to form a coating on the surface of the hydrogel, and the coating is rapidly cooled to obtain the water storage and release material. After the low-temperature phase change material is added to a cigarette filter rod, when the cigarette burns to generate high temperature, the phase change material absorbs part of the heat and changes phase, thereby releasing the stored water, so that the water content in the smoke remains stable. The material has good water retention when stored, and only needs the heat provided by the smoke to automatically, continuously and stably release the water.

The utility model relates to the technical field of cigarette detection, and provides a device for automatically marking a cigarette combustion termination position, which comprises a rotating component, a detection component and a control component, the smoke exhaust assembly is provided with a first station and a second station; at the first station, the supporting part on the smoke discharging assembly extends to the bottom of the rotating assembly so as to be used for supporting cigarettes; at the second station, the supporting part on the smoke discharging assembly moves to avoid the cigarettes; and the ink jetting assembly is arranged on one side of the rotating assembly and is configured to be used for jetting ink to the cigarettes in the process that the cigarette discharging assembly is located at the first station and the rotating assembly drives the cigarettes to rotate. According to the device for automatically marking the cigarette combustion termination position, the rotating assembly, the smoke discharging assembly and the ink jetting assembly are integrated, full-automatic operation of cigarette combustion termination position marking is achieved, and the detection efficiency and precision are remarkably improved.

The invention relates to the technical field of cigarette flavor preparation, and discloses a cigarette flavor additive and a preparation method thereof, and the cigarette flavor additive comprises a blueberry extract, a flavor enhancer, nerol, an alcohol flavor, ethyl benzoate, 4-hydroxybenzoic acid and ethanol. According to the invention, the blueberry extract is used as a perfume and the fragrance contained in the blueberry extract reduces the irritation, the blueberry extract is used for perfuming the cigarette, so that the cigarette fragrance can be improved, the effects of smoothing smoke, reducing offensive odor, improving aftertaste and the like are achieved, and the adopted flavor enhancer is thermally cracked in the cigarette burning and smoking process, so that the fragrance of the cigarette is improved. Organic acid components with unique fragrance are released, so that the purpose of effectively enhancing the flavor of cigarettes can be achieved, and the effects of improving the fineness and softness of smoke, increasing the thickness of the smoke and reducing offensive odor and irritation are achieved.

This application discloses a method, apparatus, device, and storage medium for determining the burning rate of cigarettes. The method includes: inputting a burning image of a cigarette to be measured into a trained image segmentation model, and outputting a segmentation result corresponding to the burning image; the burning image is obtained by preprocessing an image of a burned cigarette; the image segmentation model is trained based on burning image samples and the semantic labels of the corresponding pixels; and determining the burning rate of the cigarette based on the segmentation result corresponding to the burning image. This method enables analysis of the burning rate of cigarettes based on burning images, avoiding interference with the cigarette burning process. Simultaneously, it uses a deep learning model for accurate and efficient segmentation of the burning region, ensuring the efficiency and accuracy of the burning rate measurement.

The utility model provides an ashtray with a cigarette clamping groove. The ashtray comprises an ashtray body; the cover body is detachably arranged on the cylinder body, and a through hole is formed in the cover body; the cigarette placing assembly is arranged on the cover body, and the cigarette placing assembly is located in the through hole; the cigarette extinguishing assembly is arranged on the cover body, and the cigarette extinguishing assembly is located on one side of the cigarette placing assembly. Through the arrangement of the cigarette placing assembly, a cigarette can be conveniently placed on the cover body, meanwhile, the situation that when the burning end of the cigarette is placed vertically or downwards at a large angle, other cigarette ends in the ashtray body are ignited by the burning cigarette is avoided, and the burning end of the cigarette is obliquely arranged in the ashtray body to a small degree; in addition, cigarette ash generated in the cigarette burning process can fall into the ashtray body to be collected, and when the cigarette is burnt, the situation that cigarette ends fall out of the ashtray body is avoided.

The invention provides a cigarette burning and smoking dynamic consistency evaluation method and system. The method comprises the following steps: putting a to-be-detected cigarette under a fixed smoking condition for cigarette smoking and recording to obtain puff-by-puff smoking resistance; obtaining a consistency index of the to-be-detected cigarette according to the draw resistance; obtaining a consistency index threshold value of the cigarette; and determining the number of cigarettes with the consistency index exceeding the consistency index threshold value of the to-be-detected cigarettes, and determining and outputting a cigarette burning and smoking dynamic consistency evaluation index. According to the method, the combustion and smoking dynamic consistency of the cigarette can be evaluated, the difference of smoking feelings of consumers after material replacement, process parameter adjustment or remote production of the cigarette is visually represented, and an important reference is provided for cigarette design and production.

The invention provides carbon nanocellulose aerogel based on gas phase adsorption as well as a preparation method and application of the carbon nanocellulose aerogel, and belongs to the technical field of slow release of tobacco flavor. The preparation method comprises the following steps: preparing a nanocellulose suspension through 2, 2, 6, 6-tetramethylpiperidine oxide mediated oxidation reaction and homogenization treatment; sequentially performing freezing and vacuum freeze drying to obtain nano cellulose aerogel; the nano cellulose aerogel is carbonized, and carbon nano cellulose aerogel is obtained; the carbon nanocellulose aerogel and alpha-ionone, 3-acetylpyridine or citral are subjected to gas phase adsorption, and the carbon nanocellulose aerogel based on gas phase adsorption is obtained. The aerogel material prepared by utilizing a gas phase adsorption method has a good controlled release function, can realize accurate release of perfume under a high-temperature condition, meets the requirements of temperature and controlled release of perfume during cigarette combustion, and is simple and feasible in preparation process and suitable for industrial large-scale production.

The invention provides a cigarette burning and smoking uniformity evaluation method and system. The method comprises the following steps: S1, selecting a preset number of cigarettes from a cigarette sample as to-be-detected cigarettes; s2, carrying out cigarette smoking under a fixed smoking condition; s3, recording the instantaneous pressure drop in the airflow channel during each suction, and determining the suction resistance of the current suction according to the instantaneous pressure drop; s4, recording the instantaneous pressure drop in the airflow channel during each suction, and determining the suction resistance of the current suction according to the instantaneous pressure drop; and S5, calculating and outputting a combustion and suction uniformity evaluation index according to the puff-by-puff movement change rate. According to the method, the uniformity and the stability of the cigarette burning and smoking process are determined according to the burning and smoking uniformity evaluation index. According to the cigarette smoking uniformity evaluation method and system provided by the invention, smoking evaluation personnel do not need to carry out smoking evaluation, and the smoking uniformity evaluation of the cigarettes in batches can be carried out, so that the manpower and time are greatly saved. The burning and smoking uniformity of different cigarettes can be visually represented, and an important reference is provided for cigarette design and quality evaluation.

Provided is a method for preparing an in-situ pore-forming cigarette paper for reducing the release amount of nitrosamines in cigarette smoke, belonging to the technical field of cigarette paper production in the tobacco industry. In this preparation method, a nitrogen-containing polysaccharide solution and a specific inorganic template agent are added during the papermaking process of ordinary cigarette paper. When the cigarette burns, the cellulose in the paper burns and cracks, in-situ generating a nitrogen-doped porous carbon material with a pore size range between 0.1 nanometer and 100 nanometers, which has excellent effects on capturing and adsorbing harmful substances such as nitrosamines. This preparation method is simple and low-cost. The cigarette paper has variable diffusivity and pore structure, and the ratio of additives can be adjusted according to needs to obtain cigarette papers with different adsorption properties. The cigarette paper of the present invention can effectively reduce the release amount of nitrosamines in cigarette smoke, improve the smoke quality, reduce the harm to smokers and the surrounding environment, and has broad application prospects and potential value.

The utility model relates to the technical field of cigarette packaging machine equipment, and discloses an automatic cigarette ash removing device for a cigarette warehouse, which comprises a movable guide plate used for flapping cigarette burning ends in the cigarette warehouse and a material guide plate arranged obliquely, one end of the guide plate is fixedly connected with the cigarette warehouse, and the other end is suspended to form an outlet end; an elastic piece is arranged on the movable guide plate, a balancing weight is arranged at the end of the elastic piece, and the elastic piece drives the balancing weight to knock the material guide plate in a reciprocating mode along with the flapping action of the movable guide plate. The problem that in the prior art, after cigarette ash of a ZB45 packaging machine falls on a material guide plate, a large amount of cigarette ash is accumulated, and therefore transverse cigarette ash cannot fall smoothly is solved.

The utility model discloses colorful changeable transfer tipping paper, and belongs to the technical field of special packaging paper. The colorful changeable transfer tipping paper comprises a tipping paper body paper layer and further comprises a flame-retardant coating fixedly arranged at one end of the body paper layer, a printing coating is fixedly arranged at the top of the body paper layer, a waterproof layer is fixedly arranged on the end face, away from the body paper layer, of the printing coating, and one end of the printing coating and one end of the waterproof layer abut against the flame-retardant coating; according to the tipping paper, the flame-retardant coating is fixedly arranged on the side face of the tipping paper, when the cigarette burns to the flame-retardant coating, the flame-retardant coating can prevent the cigarette from continuously burning towards a filter tip, fire disasters can be reduced, fingers can be prevented from being scalded, and the using effect is improved.

The present application relates to cigarette factory cigarette ventilation technical field, disclose a kind of energy-saving ventilation device for cigarette factory, the device includes workbench and handling manipulator, handling manipulator is used to carry and place cigarette;Supporting table is fixedly installed on workbench;Rotary part is connected with workbench and located between supporting table and workbench;Telescopic cylinder is fixedly installed on supporting table, and lifting seat is connected with telescopic cylinder output end;Ventilation assembly is uniformly arranged on lifting seat;Negative suction unit is uniformly arranged on supporting table;By changing the ventilation position of flue gas, the combustion degree of cigarette can be selected, when cigarette just starts to burn and cigarette burns more than half, different flue gas suction mode is used, at this time, negative pressure absorption work of flue gas can be ensured, so as to complete ventilation work.

The invention relates to the technical field of cigarette detection, and provides a device for automatically marking a cigarette combustion termination position, which comprises a rotating assembly suitable for placing a cigarette and driving the cigarette to rotate; the smoke exhaust assembly is provided with a first station and a second station; at the first station, the supporting part on the smoke discharging assembly extends to the bottom of the rotating assembly so as to be used for supporting cigarettes; at the second station, the supporting part on the smoke discharging assembly moves to avoid the cigarettes; and the ink jetting assembly is arranged on one side of the rotating assembly and is configured to be used for jetting ink to the cigarettes in the process that the cigarette discharging assembly is located at the first station and the rotating assembly drives the cigarettes to rotate. According to the device for automatically marking the cigarette combustion termination position, by integrating the rotating assembly, the smoke discharging assembly and the ink jetting assembly, full-automatic operation of cigarette combustion termination position marking is achieved, and the detection efficiency and precision are remarkably improved.

The invention relates to the technical field of cigarette tipping paper, in particular to aromatic flame-retardant tipping paper. When the tobacco shred rod is combusted, the aerogel composite material has high air permeability, and passing of smoke cannot be affected; and when the cigarette burns to the location of the aerogel composite; the aerogel composite material can be used as a key flame-retardant layer of the tipping paper due to excellent heat insulation performance; for example, a common silicon dioxide aerogel composite material has extremely low thermal conductivity due to a nano porous structure; when the cigarette is burnt to the position of the aerogel composite material, heat is transferred to the aerogel composite material, and the aerogel layer can effectively buffer heat conduction; gas in a large number of pores inside the cigarette holder expands after being heated to absorb heat, heat transfer towards the filter tip is reduced, combustion caused by overheating of remaining cigarettes is prevented, fire hazards are reduced, and the problem that hands of people are scalded due to carelessness is solved.

A negative pressure distribution detection device during cigarette combustion comprises a detection chamber, a suction module and an inflation module, the detection chamber is composed of a base and a transparent isolation cover buckled on the base, a lifting type cigarette insertion hole and a lifting air cavity located below the cigarette insertion hole are formed in the base, the suction module is communicated with the lifting type cigarette insertion hole through a pipeline, and the inflation module is communicated with the suction module through a pipeline. The inflation module is communicated with the liftable air cavity through an air passage; the upper portion of the isolation hood is of a hemispheroid structure, gas flow meters are evenly arranged on the isolation hood, and detection heads at the lower ends of the flow meters are distributed around a cigarette combustion cone in the isolation hood. The detection device capable of accurately measuring the negative pressure distribution in the cigarette combustion process is developed aiming at the current situation that accurate measurement of the negative pressure distribution in the actual cigarette combustion process is lacked in the prior art, the external airflow field of the cigarette can be detected, and a basis is provided for cigarette design; the method has important practical significance for improving the combustion performance of cigarette products, optimizing the cigarette manufacturing process and improving the cigarette quality and the combustion efficiency.

Disclosed is a device and method for reducing combustion cone fallout propensity and stabilizing loss of tobacco from ends. Firstly, the right installation positioning hole is moved rightwards to extend the distance of the separation zone. Meanwhile, the vibration mechanism is redesigned so that it is enabled to move toward the lower right of the material groove body. Therefore, there is enough space to install the separation screen in the separation zone. Finally, the separation screen is installed. The tobacco scraps are separated out when they pass through the separation screen, thus reducing cone dropping when the cigarette burns, stabilizing the amount of dropping tobacco at the end, and improving the smoking experience and recognition of customers with regard to cigarette products.

The present invention discloses a dynamic filter ventilation rate detection device based on constant flow, comprising a cigarette fixing mechanism, an air extraction mechanism, a flow detection mechanism, a flow control mechanism, and a cigarette burn line detection mechanism; the cigarette fixing mechanism comprises a first cigarette clamping unit and a sleeve, the sleeve being provided with a cigarette insertion port, a flow detection port, and a suction port, the cigarette insertion port being used to insert the cigarette into the sleeve; the air extraction mechanism extracts air from the sleeve through the suction port; the flow detection mechanism is connected to the flow detection port; the flow control mechanism is arranged between the air extraction mechanism and the sleeve; the cigarette burn line detection mechanism is used to detect the position of the cigarette burn line. The filter ventilation rate detection device disclosed herein realizes dynamic monitoring and detection of the filter ventilation rate by detecting the position of the cigarette burn line, and can detect the dynamic changes of the filter ventilation rate during the cigarette burning and smoking process, which is conducive to more accurately evaluating the real impact of the filter ventilation rate on the smoking experience.

The present invention relates to a cigarette paper with ash-encapsulated patterns, and a preparation method and application thereof. The preparation method of the cigarette paper with ash-encapsulated patterns comprises the following steps: coating a coating liquid on a cigarette paper base paper according to the shape of a pattern, so as to obtain the cigarette paper with ash-encapsulated patterns; wherein the coating liquid comprises the following components in weight percentage: 43-60% of an ash-encapsulated color developer, 1-5% of a thickener, and the remainder is water; the ash-encapsulated color developer is at least one of potassium citrate or sodium citrate. The preparation method obtains the cigarette paper with ash-encapsulated patterns by regulating the concentration of the ash-encapsulated color developer and the thickener in the coating liquid, which can clearly display a preset pattern after the cigarette is burned, can be well applied in the product anti-counterfeiting of cigarettes, and at the same time enriches the sensory experience of consumers smoking cigarettes, and the preparation method of the cigarette paper has a simple process and low cost.