Classifications

• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
  • A24C1/00—Elements of cigar manufacture
  • A24C1/04—Devices for cutting cigar binders or wrappers

Definitions

• the invention relates to a method for manufacturing wrappers for manufacturing cigars, use being made of a tobacco leaf which is cut into a number of parallel strips substantially in longitudinal direction of said leaf, so in the direction of the midrib thereof, both ends of said strips being cut-off across similar, acute angles in respect to the longitudinal direction, which angle might coincide with the angle enclosed by the midrib and the sideribs of said leaf.
• each strip will contain parts of the sideribs of said tobacco leaf.
• the outer surface of the obtained cigar will not be very smooth.
• a considerable portion of the tobacco leaf will get wasted, although the scrap can be processed into fillers.
• the object of the invention is to provide a method for manufacturing a wrapper which allows the production rate of a cigar winding machine to be increased considerably and which produces relatively much less waste, thereby causing a considerable reduction in the production cost of cigars.
• the strips cut out-off a tobacco leaf extend themselves substantially between two succeeding sideribs, the ends of several strips obtained in this way being connected to each other for forming an almost continuous wrapper ribbon.
• the wrapper ribbon obtained in this way will be rather smooth because it will hardly contain portions of the ribs of the tobacco leaf. Further the ends of the formed strips will come to lie onto each other as flat as possible, which allows a proper connection between the strips .
• the thickness of the sideribs can be measured so that parts of this can be maintained in a strip when the thickness is below a given value.
• said strips By cutting-off the ends of said strips across acute angles said strips can be connected to each other over a larger area with an equal width of overlap.
• Connecting the ends of the strips can occur in the known way by means of adhering. It is also possible to apply the strips onto a non-regenerable carrier being comprised of vari- ous materials, such as paper, for example. It is also possible to employ a regenerable carrier, such as a foil, a cloth or the like.
• the ends of two strips can be laid on top of each other and can be fed between rollers, so that said ends will be compressed into and be connected to each other.
• NL 6501893 describes a method for connecting tobacco leaves, either parts thereof, for forming a band out of which wrappers each for one single cigar can be cut. Only the midrib is removed out of said leaves.
• said continuous ribbon obtained according to the invention, is having a certain strength, so that the cigar winding machine can proces it without any risk of pulling it apart.
• it can be provided for, that on cutting a tobacco leaf into strips, said strips are scanned and that in case of detecting an irregularity in a strip, this will be cut transversely at both sides of said irregularity and the internediate portion, containing said irregurality, will be removed, both ends of the remaining parts of said strip being handled in the same way as a normally obtained strip.
• the irregularity can be a hole or a tear in the tobacco leaf or a considerably thickened portion, or the like.
• Means known per se can be employd for scanning a strip.
• the thickness of the sideribs, present in this can be measured, such that it can be fixed whether a part of a siderib might be present in a strip cut-off said leaf.
• the strip can have an optimal length.
• strips of wrapper can be reinforced with materials that can be processed in the final product, such as so-called “homogenised tobacco leaf” parts, fibres and paper- types which can be smoked.
• strips of wrapper are combined with binder from homogenised tobacco foil.
• Said obtained continuous ribbon of wrapper can be spirally fed onto the filler but in particular it is preferred that the ribbon is wound around the filler, fed as a continuous strand, in longitudinal direction, whereupon both longitudinal edges of said ribbon will be connected to each other.
• the wrapper can possibly be stuck to the filler, depending on the composition of said filler.
• the wrapper can be pointed to GB 19132-A.D.1907 in which it is indicated that a wrapper can be used to inclose a filler to form a long rod which can be cut into desired lengths .
• the wrapper is formed by cutting longitudinal strips from each side of a tobacco leaf, the longitudinal sides of said strips being connected to one another. So each connecting place comprises parts of the sideribs of the leaf and so is not smooth. Further the obtained strip is folded upon itself so that a wrapper composed of two layers will result in order that the perforations in one layer may be covered by the material of the next layer.
• the ribbon of tobacco leaf according to the invention can be wound upon a reel, which can be supplied to a cigar winding machine. Processing of the tobacco leaves generally will not take place immedately at the cigar winding machine.
• NL 7502839-A shows a device comprising a number of transporters for connecting rectangular pieces of tobacco leaves to one another and brin- ging the formed ribbon onto a reel.
• Fig. 1 schematically shows a view of a tobacco leaf before it is cut into strips
• Fig. 2 schematically shows a perspective view of a reel onto which a ribbon of wrapper, formed by a number of strips, is wound.
• Fig. 1 shows a tobacco leaf 1, having a midrib 2 and sideribs 3 , which approximately enclose an angle a with the midrib 2.
• dash lines 4 indicate how the tobacco leaf 1 can be cut into a number of strips 5 extending in parallel.
• the strips 5 are cut-off in transverse direction as indicated by dash lines 6. These lines 6 can extend across an angle a which is approximately parallel to the direction of the sideribs 3.
• midrib 2 will not form part of a strip 5 and the strips 5 lying directly beside said midrib, generally speaking, will extend itself only between two sideribs 3 such that no parts of said sideribs 3 will form part of a strip 5.
• de strips 5, lying at a distance from said midrib 2 might contain parts of one or more sideribs 3. In this way it is obtained that a strip 5 will have a limited thickness over its complete surface.
• said reel 11 can be fed to a cigar winding machine in which the ribbon 10 can be pulled from said reel 11 and can be spirally wound onto the filler fed in the form of a continuous strand.
• said ribbon 10 is folded around the filler in longitudinal direction, whereupon the longitudinal edges 12 of said ribbon 10 are stucked together.
• the ribbon 10 can be mounted toge- ther with the binder of the filler which allows for making a cigar in one single step. It will be obvious that then the obtained continuous strand is cut into pieces of the desired length for obtaining cigars.
• the wrapper ribbon 10, wound upon the reel 11, can be combined with other materials and can be used in that way.

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• Manufacture Of Tobacco Products (AREA)
• Manufacturing Of Cigar And Cigarette Tobacco (AREA)

Priority Applications (5)

Applications Claiming Priority (2)

Publications (1)

Family

ID=38457737

Family Applications (1)

Country Status (7)

Citations (8)

Family Cites Families (2)

• 2007
  • 2007-02-06 NL NL1033346A patent/NL1033346C2/nl not_active IP Right Cessation
• 2008
  • 2008-02-06 US US12/524,769 patent/US20100006114A1/en not_active Abandoned
  • 2008-02-06 WO PCT/NL2008/000034 patent/WO2008097081A1/en active Application Filing
  • 2008-02-06 ES ES08741609T patent/ES2420966T3/es active Active
  • 2008-02-06 EP EP08741609.5A patent/EP2120613B1/en not_active Not-in-force
  • 2008-02-06 PL PL08741609T patent/PL2120613T3/pl unknown
  • 2008-02-06 DK DK08741609.5T patent/DK2120613T3/da active

Patent Citations (8)

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