Patent ID: 11918025
Assignee: SCHWEITZER MAUDUIT INTERNATIONAL, INC.
Field: Other consumer goods (Other fields)
Classification: CPC A | IPC A

Claim 0:
1. A papermaking process for manufacturing a heat but not burn tobacco product comprising
tobacco fibres which have undergone an extraction in water, the tobacco fibers represent between 30% and 80% by weight of dry matter of a reconstituted tobacco, wherein the tobacco components of the reconstituted tobacco have a tobacco lamina fiber content of 20% or more by weight of the dry matter of the reconstituted tobacco,
a tobacco aqueous soluble fraction, and
a humectant,
in which
the tobacco aqueous soluble fraction represents between 10% and 35% by weight of the dry matter of the reconstituted tobacco;
wherein the tobacco aqueous soluble fraction corresponds to all of the tobacco components that solubilize in water; and
the humectant represents between 8% and 30% by weight of the dry matter of the reconstituted tobacco,, the papermaking process comprising the following steps:
tobacco parts originating from a threshing or cutting of tobacco leaves are mixed with water in order to extract water-soluble products of the tobacco;
the water-soluble products are then separated from the tobacco fibres,
the tobacco fibres are refined and passed into a papermaking machine in order to form a base sheet;
the water-soluble products of the tobacco parts obtained during the extraction are concentrated;
all or some of the concentrated water-soluble products are incorporated with the humectant into the base sheet in order to form the reconstituted tobacco, wherein all or some of the concentrated water-soluble products and the humectant impregnate the base sheet,, wherein
the tobacco parts originating from the threshing or cutting of the leaves comprise tobacco lamina and tobacco stems and ribs,
the extraction step is carried out on the tobacco lamina separately from the tobacco stems and ribs, and
only the water-soluble products obtained during the extraction step carried out on the tobacco lamina are incorporated into the base sheet in order to produce the heat but not burn tobacco product.