Smoking materials

Claim 1

A method of making tobacco substitute smoking product fuel, said method comprising providing a mass of substantially round cross-section, crimped viscose fibres having between 6 and 8 crimps per cm, a denier of between 5 and 20, and a length of between 20 and 100 mm, and subjecting the mass of viscose fibres to controlled pyrolysis until the organic residue contains at least 95% carbon by weight, an oxygen content of between 1 and 4% by weight, and a hydrogen content of less than 1% by weight.

Claim 2

A method of making tobacco substitute smoking product fuel, said method comprising providing a mass of substantially round cross-section, crimped viscose fibres having between 6 and 8 crimps per cm, a denier of between 5 and 20, and a length of between 20 and 100 mm, and subjecting the mass of viscose fibres to controlled pyrolysis until the organic residue contains at least 95% carbon by weight, an oxygen content of between 1 and 4% by weight, and a hydrogen content of less than 1% by weight.

Claim 7

A method of making a tobacco substitute smoking product fuel, said method comprising providing a strand of viscose fibres and subjecting said viscose fibres to controlled pyrolysis until the organic residue contains at least 90% carbon by weight by the stepwise heating of said the strand by passing the strand ?ongitudinally, either continuously or in stepwise manner, through a pyrolysing oven, and therein first raising the temperature of the strand gradually from between 200°C and 300°C to between 400°C and 550°C to dry the strand and provide the majorchemical transformation reactions of the viscose, and thereafter quickly raising the temperature of the strand to between 700°C and 1200°C for long enough to complete the transformation of the viscose to carbon.

Claim 8

A method of making a tobacco substitute smoking product fuel, said method comprising providing a strand of viscose fibres and subjecting said viscose fibres to controlled pyrolysis until the organic residue contains at least 90% carbon by weight by the stepwise heating of said the strand by passing the strand ?ongitudinally, either continuously or in stepwise manner, through a pyrolysing oven, and therein first raising the temperature of the strand gradually from between 200°C and 300°C to between 400°C and 550°C to dry the strand and provide the majorchemical transformation reactions of the viscose, and thereafter quickly raising the temperature of the strand to between 700°C and 1200°C for long enough to complete the transformation of the viscose to carbon.

Claim 10

A method of making a smoking product for use as a tobacco substitute, said method comprising providing a mass of viscose fibres having a nicotine component carrier, which comprises an alumino silicate, aluminum oxide or silica, homogeneously dispersed therein, thereafter subjecting the mass of viscose fibres to controlled pyrolysis until the organic residue contains at least 90% carbon by weight, and thereafter loading the pyrolysed product with the ingredients for smoking including a nicotine component.

Claim 11

A method of making a smoking product for use as a tobacco substitute, said method comprising providing a mass of viscose fibres having a nicotine component carrier, which comprises an alumino silicate, aluminum oxide or silica, homogeneously dispersed therein, thereafter subjecting the mass of viscose fibres to controlled pyrolysis until the organic residue contains at least 90% carbon by weight, and thereafter loading the pyrolysed product with the ingredients for smoking including a nicotine component.

Claim 12

A method for making a smoking tobacco substitute product fuel, said method comprising providing a mass of viscose fibres having homogeneously dispersed therein at least one inorganic combustion modifying agent precursor, and subjecting the viscose fibres to controlled pyrolysis until the organic residue contains at least 90% carbon by weight and said inorganic combustion modifying agent precursor is converted into an inorganic combustion modifying agent consisting of calcium carbonate, to produce a pyrolysed product with said inorganic combustion modifying agent homogeneously dispersed therein.

Claim 13

A method for making a smoking tobacco substitute product fuel, said method comprising providing a mass of viscose fibres having homogeneously dispersed therein at least one inorganic combustion modifying agent precursor, and subjecting the viscose fibres to controlled pyrolysis until the organic residue contains at least 90% carbon by weight and said inorganic combustion modifying agent precursor is converted into an inorganic combustion modifying agent consisting of calcium carbonate, to produce a pyrolysed product with said inorganic combustion modifying agent homogeneously dispersed therein.

Claim 18

A method for making a smoking tobacco substitute product fuel, said method comprising providing a mass of viscose fibres, applying calcium formate to said viscose fibres in the form of a calcium formate solution, to homogeneously disperse said calcium formate into said mass, thereafter subjecting said mass to controlled pyrolysis until the organic residue contains at least 90% carbon by weight, and said calcium formate is converted to calcium carbonate, to produce a pyrolysed product with said calcium carbonate homogeneously dispersed therein, and thereafter dispersing in the pyrolysed product a further combustion modifying agent which is at least one of ammonium di- hydrogen phosphate, diammonium hydrogen phosphate, the mono- , di- and tri- phosphates of sodium and potassium, and the meta- and tetra-borates of sodium and potassium, by contacting said pyrolysed product with a solution of said further combustion modifying agent, wherein said calcium formate and said further combustion modifying agent are dispersed on said fibres in said mass by dipping said mass in . a solution of said calcium formate, and subsequently deliquoring and drying said fibres, and by dipping said pyrolysed mass in a solution of said further combustion modifying agent, and subsequently deliquoring and drying said pyrolysed mass.

Claim 19

A method for making a smoking tobacco substitute product fuel, said method comprising providing a mass of viscose fibres, applying calcium formate to said viscose fibres in the form of a calcium formate solution, to homogeneously disperse said calcium formate into said mass, thereafter subjecting said mass to controlled pyrolysis until the organic residue contains at least 90% carbon by weight, and said calcium formate is converted to calcium carbonate, to produce a pyrolysed product with said calcium carbonate homogeneously dispersed therein, and thereafter dispersing in the pyrolysed product a further combustion modifying agent which is at least one of ammonium di- hydrogen phosphate, diammonium hydrogen phosphate, the mono- , di- and tri- phosphates of sodium and potassium, and the meta- and tetra-borates of sodium and potassium, by contacting said pyrolysed product with a solution of said further combustion modifying agent, wherein said calcium formate and said further combustion modifying agent are dispersed on said fibres in said mass by dipping said mass in . a solution of said calcium formate, and subsequently deliquoring and drying said fibres, and by dipping said pyrolysed mass in a solution of said further combustion modifying agent, and subsequently deliquoring and drying said pyrolysed mass.