Classifications

• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H5/00—Special paper or cardboard not otherwise provided for
  • D21H5/12—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials
  • D21H5/14—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of cellulose fibres only
  • D21H5/16—Tobacco or cigarette paper
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
  • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
  • A24B15/18—Treatment of tobacco products or tobacco substitutes
  • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
  • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
  • A24B15/18—Treatment of tobacco products or tobacco substitutes
  • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
  • A24B15/281—Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed
  • A24B15/282—Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed by indirect addition of the chemical substances, e.g. in the wrapper, in the case
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D1/00—Cigars; Cigarettes
  • A24D1/002—Cigars; Cigarettes with additives, e.g. for flavouring
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D1/00—Cigars; Cigarettes
  • A24D1/02—Cigars; Cigarettes with special covers
• • D—TEXTILES; PAPER
  • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
  • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
  • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
  • D21H17/63—Inorganic compounds
  • D21H17/66—Salts, e.g. alums

Definitions

• This invention relates to cigarette paper or the like and to tobacco smoking products comprising the same. More particularly, the invention relates to a method and means for neutralizing certain obnoxious gaseous substances resulting from the combustion of cigarettes or other smoking products having a paper wrapper.
• the main object of the invention is to incorporate in a cigarette, or other smoking product having a paper wrapper, salts capable of increasing the rate of combustion to thereby neutralize certain products generated by the natural combustion of the smoked product.
• a further object of the invention is therefore to interpose between the paper wrapper and the tobacco roll of a smoking product, such as a cigarette, an intermediary layer of catalytic salts, so that the smoke is necessarily acted upon by said salts before coming into the mouth of the smoker through the tobacco roll.
• a smoking product such as a cigarette
• an intermediary layer of catalytic salts so that the smoke is necessarily acted upon by said salts before coming into the mouth of the smoker through the tobacco roll.
• metals of the platinum group is meant a metal of the group consisting of platinum, iridium, palladium, rhodium and ruthenium.
• the intermediary layer of the salts of the metals above referred to is regarded as being constituted by the residue of the said salts remaining after the evaporation of the solution of said salts which is used to impregnate said paper wrapper.
• the substances to be catalyzed by the presence of a metal of the platinum group is any substance contained in the combustion products of a conventional cigarette paper, which may be subjected to oxidation.
• chlorophyll particularly a water-soluble chlorophyll
• cigarette paper may be made to undergo a further combustion when catalyzed by the presence of chlorophyll and related compounds in the 0 paper, the chlorophyll is What may be termed a pseudocatalyst since the molecules of chlorophyll will be de- 2,902,998 Patented Sept. 8, 1959 stroyed by the combustion heat.
• any metal of the above defined platinum group constitutes a true catalyst not affected by the combustion heat produced by a burning cigarette. Consequently, while chlorophyll induces the desired oxidation of irritating vapors only as long as the chlorophyll remains unaffected by the combustion heat, that is, during the course of the passage of said vapors over the unburnt part of the chlorophyllized cigarette paper, which course decreases as the length of the cigarette decreases during the cornbustion thereof, a metal of the platinum group as described induces the oxidation of irritating vapors at the very moment of combustion and at every combustion zone along the entire cigarette, independently of the unburnt length portion thereof.
• the above mentioned metal salts offer the further essential advantage of considerably increasing the degree of combustibility of a smoking product, which permits, all other things being equal, using a paper having a far lower degree of porosity.
• the efliciency of the cigarette i.e. the ratio of the amount of tobacco smoke actually inhaled by the smoker to the total amount of tobacco which is destroyed by the smoking operation, increases as the degree of porosity of the paper decreases.
• the treatment according to the invention permits manufacturing cigarettes offering both a high etficiency and a good combustibility.
• the tobacco proper acts as a filter for the smoke so that certain gaseous substances contained in the smoke are liable to be adsorbed on the surface of the tobacco shreds. This is why a conventional cigarette becomes stronger and stronger as it is consumed so that many delicate smokers and in particular those who smoke rarely, usually consume only about one half of their cigarettes.
• a cigarette according to the invention owing to the neutralization of unwanted gaseous substances, keeps it flavour and taste unaltered during its whole consumption.
• the above mentioned neutralizing intermediary layer is preferably obtained from a solution of palladium chloride concentrated at about 1/ 1000 in a suitable solvent, such as water.
• This method permits obtaining the best results with a practically negligible increase of the cigarette cost.
• the deposition of the above mentioned solution may be eifected either by coating the relevant face of the paper or by impregnating the same, this last alternative ensuring a better adherence of the neutralizing layer.
• the paper is then dried to ensure evaporation of the solvent.
• Example. cc. of an aqueous solution with a con-. centration of 1.3 gram of palladium chloride per litre are used.
• an ordinarily manufactured cigarette is coated with this solution so as to slightly Wetits paper (about 1 cc. for 20 cigarettes), particular care being taken to suitably impregnate the overlapping seam of the cigarette to take into account the double-layer of paper existing along said seam.
• a cigarette thus treated when normally smoked (i.e. substantially at the rate of inhalation of cc. per minute at a frequency of one expiration per minute) offers a constant smoking pleasure during its whole con sumption.
• a cigarette paper. wrapper having applied to at least one surface thereof, a salt of a platinum group metal.
• a cigarette having a paper wrapper enclosing a tobacco filler, said paper Wrapper having applied at least to its inner surface a salt of a platinum group metal.
• the method of treating cigarette paper comprising applying to at least one surface a solution of palladium chloride in concentration of about 1 part per 1,000.

Landscapes

• Chemical & Material Sciences (AREA)
• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Toxicology (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Inorganic Chemistry (AREA)
• Cigarettes, Filters, And Manufacturing Of Filters (AREA)
• Catalysts (AREA)
• Paper (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=9637896

Family Applications (1)

Country Status (6)

Cited By (10)

Families Citing this family (3)

Citations (9)

• 0
  • DE DENDAT1049694D patent/DE1049694B/de active Pending
  • NL NL201504D patent/NL201504A/xx unknown
  • BE BE542185D patent/BE542185A/xx unknown
  • NL NL100141D patent/NL100141C/xx active
• 1954
  • 1954-10-27 FR FR1131423D patent/FR1131423A/fr not_active Expired
• 1955
  • 1955-10-10 FR FR68053D patent/FR68053E/fr not_active Expired
  • 1955-10-17 US US541048A patent/US2902998A/en not_active Expired - Lifetime
  • 1955-10-17 GB GB29561/55A patent/GB781539A/en not_active Expired

Patent Citations (9)

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