Having a tool that can predict both smoke deliveries and fire propensity test results has become necessary because of tobacco regulations, and acceptability to the consumer. The work presented in this paper is a systematic study on the role of base paper and band parameters on smoke and on ASTM and FASE. To conduct this study, we have used a face centred central composite design. Because of its positive impact on CO deliveries, we have chosen to use K citrate as the burn additive.

For band geometry, we have used one of the most common design: 6 mm band width and 20 mm band spacing.

For the 3 levels of variations requested in this type of study we have used:

• Base paper amount of K citrate:0.8, 1.4 and 2%
• Base paper amount of CaCO₃:25, 29 and 33%
• Band diffusion:0.055, 0.095 and 0.135 cm/s.

Two blends were used in the study: American blend and Virginia. The study led to a number of conclusions, which will be presented: the rules known for smoke deliveries, i.e. the impact of filler level and citrate, mainly on CO, apply with the banded papers. Band diffusion, as expected, shows a major impact on the cigarettes extinction. But what we also found is that the amount of K citrate has a strong and major influence on ASTM and FASE, as filler level but to a lower extent. Detailed results will be shown, showing that the design of LIP cigarette papers can be optimised depending on constraints for tar, CO, puff number and ASTM, FASE requirements.