Classifications

• • 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
  • A24B15/10—Chemical features of tobacco products or tobacco substitutes
  • A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco

Definitions

• This invention relates to a tobacco foil having improved wet strength comprising a dried aqueous mixture of tobacco powder and a water-soluble, film-forming agent, a portion of said water-soluble, film-forming agent consisting of a compound selected from the group consisting of water-soluble xanthan-gum and water-soluble derivatives of xanthangum in admixture with a water soluble cellulose ether.
• the tobacco foils obtained according to the process of the invention, are distinguished by a considerably improved wet strength. This wet strength in dry condition is equal or superior to that of the known foils.
• the foils, prepared according to the process of the invention, can be used as tobacco wrappers for cigars, cigarillos or small cigars, because they do not impair the taste of the tobacco, but effect a favorable influence on the burning of the tobacco goods.
• EXAMPLES I 3 One hundred gram of tobacco powder were introduced into 160 g. of water and g. of ethylene glycol. The mixture was then thoroughly kneaded by hand.
• binding agents were introduced into 600 g. of water, and the mixture was allowed to stand until it had completely swelled (l2 hours). Thereafter, while stirring, 8 g. of a 30 percent aqueous glyoxal solution were added.
• the binding agent consisted of a mixture of methylcellulose 1,000 CP in 2 percent aqueous solution at 20C., according to Hoeppler) and xanthan-gum (4,000 CP in 2 percent aqueous solution at 20C., according to Hoeppler).
• the binding agents for each example had the following quantitative compositions: (l) 18 g. of methylcellulose and 2 g. of xanthan-gum; (2) 16 g. of methylcellulose and 4 g. of xanthangum; (3) 12 g. of methylcellulose and 8 g. of xanthan-gum.
• the foils of 100 X 15 mm. were subjected to a weight load of 200 mg. and suspended to a depth of 50 mm. in water, adjusted to a pH 7 at C.
• the time, at which the tearing of the foils occurred, was measured as follows:
• Example 1 binder 16 minutes.
• Example 2 binder 220 minutes.
• Example 3 binder 325 minutes.
• EXAMPLES 49 One hundred gram of tobacco powder were introduced into a mixture of 160 g. of water and 5 g. of ethylene glycol, and this mixture was thoroughly kneaded by hand.
• the binding agent consisted of a mixture of methylcellulose (1,000 CP in 2 percent aqueous solution at 20C., according to Hoeppler), and of deacetylated xanthan-gum.
• composition of the binding agents is given in the following table.
• the first columns indicate the consecutive number of the examples and the amounts of methylcellulose and deacetylated xanthan-gum utilized; the following columns indicate the wet strength and the dry strength measured on the tobacco foils.
• the working up into foils and determination of the wet strength was effected in the same manner as described in the preceding examples.
• the dry strength was determined by means of 10 different samples, each on a conventional tensite-testing apparatus.
• a tobacco foil having improved wet strength comprising a dried aqueous mixture of tobacco powder and a water-soluble, film-forming agent in a ratio of from 10 to 30 parts of said water-soluble, film-forming agent to 100 parts of tobacco powder, of said water-soluble, film-forming agent consisting of a mixture of water-soluble cellulose ether and at least 3 percent of said mixture of xanthan-gum selected from the group consisting of water-soluble xanthan-gum and water-soluble derivatives of xanthan-gum, said xanthan-gum being prepared by the action of Xanthomonas campestris.
• said water-soluble, film-forming agent is a mixture of from 97 percent to 40 percent of a water-soluble cellulose ether and from 3 percent to 60 percent of a compound selected from the group consisting of water-soluble xanthan-gum and water-soluble derivatives of xanthan-gum.
• said water-soluble, film-forming agent is a mixture of from 94 percent to 55 percent of a water-soluble cellulose ether and from 6 percent to 45 percent of a compound selected from the group consisting of water-soluble xanthan-gum and water-soluble derivatives of xanthan-gum.
• said water-soluble cellulose ether is a methylcellulose with a substitution degree of about 1 to 2 and with a viscosity of about 200 to 4,000 CP, in a 2 percent aqueous solution at 20C., according to Hoeppler.
• the tobacco foil of claim 1 comprising a content of a bivalent aldehyde.

Landscapes

• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Manufacture Of Tobacco Products (AREA)
• Paper (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=7162082

Family Applications (1)

Country Status (6)

Cited By (5)

• 1967
  • 1967-06-05 DE DE19671692918 patent/DE1692918A1/de active Pending
• 1968
  • 1968-03-08 FR FR1559278D patent/FR1559278A/fr not_active Expired
  • 1968-05-03 US US726552A patent/US3542035A/en not_active Expired - Lifetime
  • 1968-05-08 NL NL6806496A patent/NL6806496A/xx unknown
  • 1968-06-04 BR BR199561/68A patent/BR6899561D0/pt unknown
  • 1968-06-04 CH CH836568A patent/CH532371A/de not_active IP Right Cessation

Also Published As

Similar Documents