Abstract: A mixture identification system for detecting foreign matter admixed in a tobacco material (T) includes a conveyor (2) for conveying the material (T), an irradiation device (6) for irradiating infrared light toward an inspection line (IL) extending across the conveyor (2), an infrared camera device (10) for receiving the infrared light reflected from the tobacco material (T) passing across the inspection line (IL) and outputting image data of the material (T) based on the received infrared light, and a discrimination circuit (96) for detecting foreign matter in the material (T) based on the output from the camera device (10). The infrared camera device (10) has infrared filters (70, 76, 82) for receiving the infrared light reflected from the tobacco material (T) and allowing only respective specific wavelengths to pass therethrough, and optical line sensors (72, 78, 84) for receiving the infrared light passed through the respective filters (70, 76, 82).

Abstract: A cigarette making apparatus includes a cooling-water passage which allows a coolant to circulate along a flavoring-material supply path which connects an application nozzle for applying a flavoring material to a wrapping-paper web and a pump for supplying the flavoring material to the application nozzle, to thereby cool the flavoring material. A cooling unit controls the temperature of the coolant supplied to the cooling-water passage. Specifically, the cooling unit controls the temperature of the flavoring material by selectively activating a first control system for detecting the temperature of the coolant supplied to the cooling-water passage and controlling the temperature of the coolant, and a second control system for detecting the temperature of the flavoring material supplied to the application nozzle and controlling the temperature of the coolant.

Abstract: A cigarette making apparatus comprises an application nozzle for applying a flavoring material to a wrapping-paper web supplied continuously to a wrapping machine, a pump for supplying the flavoring material to the application nozzle, and a pump control device for controlling the pump driving speed depending on the wrapping machine operating speed. The pump control device divides the wrapping machine operating speed into a plurality of speed regions and determines an approximation pump characteristic which approximates a relationship between the pump driving speed and the rate of discharge of the flavoring material from the pump in each of the speed regions, in advance, and determines the speed at which the pump should be driven, depending on the wrapping machine operating speed, according to the approximation pump characteristic. Consequently, the flavoring material is applied to the wrapping-paper web in an appropriate amount depending on the wrapping machine operating speed.

Abstract: An applied flavoring-material inspecting device suitable to inspect that a flavoring material containing a fluorescent substance is applied on cigarette wrapping paper evenly and in a proper amount. The inspecting device comprises a light source (10) for casting ultraviolet light onto a flavoring-material application surface of cigarette wrapping paper on which a flavoring material with a fluorescent substance added or containing a fluorescent substance is applied, a camera (20) for obtaining an image of the flavoring-material application surface from fluorescence radiated due to the ultraviolet light, and an image processing means (30) for detecting an area of a fluorescence irradiation region in an image for inspection obtained by digitizing the image obtained by the camera and determining an applying state of the flavoring material applied on the cigarette wrapping paper, from the area of the fluorescence irradiation region.