摘要 |
The invention relates to a filter for a smoking article, a method of production thereof, a smoking article and a device for inserting a first fibrous filter material into a second fibrous filter material to form a filter for a smoking article. Particularly but not exclusively the invention relates to a smoking article filter segment including a region of first fibrous filter material disposed within a region of second fibrous filter material and a method of production thereof. The first fibrous filter material in some embodiments comprises greater than 10% by volume of the total filter segment volume and in some embodiments the first fibrous material comprises PLA fibres and the second fibrous filter material comprises CA fibres. |