Japan Tobacco Inc.

Keisuke Towatari

Shinzo Kida

Takafumi Izumiya

Masaaki Fukaya

There is provided a machine of manufacturing a low fire-spreading web, having a travel path () through which a paper web (W) travels; an applicator () that is interposed in the travel path () and used to apply a combustion inhibitor () onto the web (W); and a dryer () that dries the web (W) applied with the combustion inhibitor (), further including a detector () that measures a parameter indicative of width of the web (W) that has passed through the dryer (); and a controller () that controls a drying condition of the dryer () on the basis of a measurement result obtained by the detector () so that the width of the web (W) falls within an allowable range.

Machine and method of manufacturing low ignition propensity paper by maintaining shrinkage rate of dried web within allowable range

Apparatus for making coated paper serving as lower ignition propensity paper for cigarettes has a transport path (L) for a web (W), a coating unit () arranged on the path (L) to apply a combustion inhibition material to the web (W), a pre-dryer () for drying the web (W) with the material applied, a gravure roller () arranged downstream of the pre-dryer () to apply water to the web (W), a drying roller () arranged downstream of the roller () to post-dry the web (W), a smoothing roller () arranged between the roller () and the roller () to flatten wrinkles in the web (W) passing around the roller (), a displacement sensor () for measuring wrinkles in the web (W) having passed around the roller (), and a controller () for controlling tension in the web (W) on the basis of measurements received from the sensor ().

Coated paper making apparatus and method

The present invention provides a machine for manufacturing low ignition propensity wrapping paper for cigarettes having combustion inhibition bands (B) intermittently formed on a web of paper by applying a combustion inhibition agent solution to the web by transfer. The machine includes a gravure roll () for forming combustion inhibition bands (B) on a web, the gravure roll () having recesses () in an outer circumferential surface for receiving the combustion inhibition agent solution, the recesses () each having a contour corresponding to the contour of the to-be-formed combustion inhibition band and having a large number of lands () distributed therein and constituting parts of the outer circumferential surface of the gravure roll, and the recesses each being designed such that the total area of the lands within the recess is smaller than the area of the recess excluding the lands.

Low ignition propensity wrapping paper manufacturing machine

A low ignition propensity wrapping paper includes a paper web and bands arranged on the web at predetermined intervals in a longitudinal direction of the web. These bands are formed by applying a combustion-inhibition liquid onto the web. The combustion-inhibiting liquid contains a solvent and a combustion inhibitor that is sodium alginate or pectin dissolved in the solvent. The solvent is treated water obtained by substantially removing at least calcium ions and magnesium ions from raw water of a water supply or a well.

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Tokyo, Japan

Keisuke Towatari