Segmented smoking article with substrate cavity

A cigarette comprising:

• a lighting end and a mouth end;
• an aerosol-generation system disposed between the lighting end and the mouth end, the aerosol-generation system including
• a heat generation segment disposed at the lighting end, with a heat source configured to be activated by ignition of the lighting end and an insulation layer of flame-retardant material around a portion of the heat source;
• and
• an aerosol-generating segment including a tobacco pellet substrate that is disposed within a substrate cavity defined at one end by the heat generation segment and at an opposite end by a tobacco rod, where the tobacco pellet substrate contacts the heat generation segment and contacts the tobacco rod;
• a pre-formed paper wrapping material tube that circumscribes at least a portion of the heat generation segment, the aerosol-generating segment, and at least a portion of the tobacco rod;
• a foil strip laminated to an interior surface of the paper wrapping material tube, which foil strip circumferentially encompasses and extends along at least a lengthwise portion of the substrate cavity and overlaps a lengthwise portion of the heat generation segment;
• wherein,
• a first lengthwise portion of the wrapping material comprises unlaminated paper material not covered by the foil strip,
• an intermediate second lengthwise portion of the wrapping material extends from the first lengthwise portion wherein the foil strip directly contacts and circumferentially encompasses the tobacco pellet substrate, and
• a third lengthwise portion also comprises unlaminated paper material not covered by the foil strip.

A cigarette comprising:

• a lighting end and a mouth end with a mouth end segment disposed at the mouth end;
• a tobacco rod disposed between the lighting end and the mouth end segment;
• an aerosol-generation system disposed between the lighting end and the tobacco rod, the aerosol-generation system including
• a heat generation segment disposed at the lighting end, with a heat source configured to be activated by ignition of the lighting end and an insulation layer of flame-retardant material around a portion of the heat source;
• and
• an aerosol-generating segment including
• a pre-formed paper material tube to which a foil material is laminated on an inward-facing surface of the paper material tube that defines a first substrate cavity so that the foil material circumferentially encompasses and extends lengthwise along at least a lengthwise portion of the substrate cavity;
• and
• a tobacco pellet substrate disposed within the first substrate cavity, further defined at one longitudinal end by the heat generation segment and at an opposite longitudinal end by the tobacco rod, where the tobacco pellet substrate directly contacts the heat generation segment and directly contacts the tobacco rod.