Method of preparing a rod for use in the preparation of a smoking article

Abstract

A method of preparing a rod for use in the preparation of a smoking article is described. The rod has a first end and a second end. The rod has located therein a solid support. The solid support extends in a linear fashion from the first end of said rod to the second end of said rod. At least a portion of said solid support is coated and / or impregnated with an additive. The rod is prepared using rod forming means, wherein said rod forming means comprises a channel ending in an open exit, wherein material may pass through at least part of the channel and leave via the open exit in the form of a rod. The rod is prepared by: (i) providing starting material for forming said rod; (ii) providing the solid support for location within said formed rod; (iii) providing an additive for coating and / or impregnating at least a portion of said solid support; (iv) allowing said starting material to travel through at least part of said channel of said rod forming means; (v) coating and / or impregnating at least a portion of said solid support with said additive within said channel; (vi) allowing said solid support coated and / or impregnated with said additive to travel through at least part of channel of said rod forming means.

Description

technical field [0001] The invention relates to a method and a device for the method. The invention also relates to products manufactured by said method. [0002] In particular, the invention relates to a method of forming rods for use in the manufacture of smoking articles. Background technique [0003] It is known to use rods containing wires as filter rods. Examples of such rods are taught in US4281671 and US2005 / 0255978 respectively. There are a number of problems with the methods of making rod articles they disclose. For example, the method taught by US4281671 does not allow the manufacturer to reliably place the wire correctly into the rod. For example, it is desirable for the wire to run along the central axis of the rod, however the method taught by US4281671 does not allow the worker to create these implementations with a degree of precision, meaning that the wire tends to run off center. This can lead to non-uniform movement of the menthol - which in some case...

AI Technical Summary

Problems solved by technology

For example, the method taught by US4281671 does not allow the fabricator to reliably place the wire correctly into the rod

For example, it is desirable for the wire to run along the central axis of the rod, however the method taught by US4281671 does not allow the worker to create these implementations with a degree of precision, meaning that the wire tends to be off-centre

This can lead to non-uniform movement of the menthol - which in some cases can lead to spotting or similar damage to casings or coverings or wrappings etc. enclosing filters etc.

A problem with the method taught in US2005 / 0255978 is that it is not optimally suited for the application of volatile flavors, such as menthol, since the flavor is coated on a solid support at a considerable distance from the rod forming means superior

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