METHOD FOR PACKAGING FINISHED TOBACCO GOODS IN A MASTER BOX
In a method for packaging finished tobacco goods in a master box first a PE liner which is foreseen of an EVOH barrier or an Aluminium liner is folded in the master box. This can be done by an automatic machine or manually. In the manual embodiment the liner, already cut on the right sizes including a seal in the bottom, is pulled over a mall which has the same size as the master box. Then the master box is pulled over the mall including the liner. Then the master box including the liner is pulled of the mall and the master box is ready for storage. Next the master box with liner is filled with finished tobacco goods and sachets with oxygen and/or humidity absorbers are placed in the master box. Then the master box is placed in a vacuum room and the pressure in the vacuum room and in the liner and the master box is reduced. Next Nitrogen is injected in the vacuum room and/or the master box. Then the liner and the master box is sealed and the box is closed.
The invention relates to a method for packaging finished tobacco goods, like cigarettes, pipe tobacco, cigarettes by hand rolled tobacco, in a master box, in particular filling the master box with cartons of packages of cigarettes.
BACKGROUND OF THE INVENTIONIn a known method for packaging cigarettes in a master box, 10-20 cigarettes are packed in packages, 10-20 packages of cigarettes are packed in a carton, and 50 cartons are packet in a plastic bag which is stored in the master box. The plastic bag is folded into the master box and the master box is closed and sealed. The master boxes are stored in containers and shipped to logistic canals to the end users.
Problems which occur after the master boxes are packed until they reach the end user are:
- 1. insects in the package,
- 2. humidity, the cigarettes are drying out,
- 3. aging process,
- 4. mold, and
- 5. Fungi.
This results in that the cigarettes cannot be consumed and have to be destroyed.
It is an object of the present invention to provide a method for packaging finished tobacco goods, in particular cigarettes in a master box in which the above disadvantages do not or at least do less occur. To this end the method according to the invention comprises the steps of:
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- folding a PE liner which is foreseen of an EVOH barrier or an Aluminium liner into the master box,
- filling the master box with liner with finished tobacco goods,
- placing sachets with oxygen absorbers in the master box,
- placing the master box in a vacuum room,
- reduce pressure in the vacuum room and in the liner and the master box,
- injecting Nitrogen in the vacuum room and/or the master box,
- repeating the steps of reducing pressure and injecting Nitrogen several times, and
- sealing the liner and the master box.
The plastic bag of the known method is replaced for a PE liner, preferably a PE liner, which is foreseen of an EVOH barrier. The EVOH barrier together with the PE keep the ambient conditions inside the liner at the same level. Because of this the ambient condition in the liner, no oxygen, will remain the same and the issues named under 1 until 5 above will not occur.
In case the humidity is too high sachets with humidity absorbers are placed into the master box before placing the master box in the vacuum room. The amount depends on the humidity of tobacco goods, type of tobacco goods and the season. The oxygen absorber sachet and the humidity absorber sachet can also be combined in one sachet.
In an embodiment of the method according to the invention folding the liner into the master box is done by an automatic machine which cuts a part of a tube foil, seals the bottom of the liner and fold the liner into the master box.
In a other embodiment of the method according to the invention folding the liner into the master box is done manually by pulling the liner, already cut on the right sizes including a seal in the bottom, over a mall which has the same size as the master box, pulling the master box over the mall including the liner, pulling the liner over the flaps of the master box, and pulling the master box including the liner.
In a preferred embodiment of the method according to the invention before placing the master box in the vacuum room, the vacuum room is tailor made with a working space inside that is slightly larger than the master box with the flaps in open position.
The invention will be further elucidated below on the basis of drawings. These drawings show an embodiment of the method for packaging finished tobacco goods in a master box according to the present invention. In the drawings:
In the figures subsequent steps of the method for packaging finished tobacco goods in a master box according to the present invention are shown. A PE liner 1 which is foreseen of an EVOH barrier is delivered as a tube foil on a roll. A machine (not shown) seals the bottom of the liner and cuts a part of the foil.
In the fourth step shown in
In the fifth step shown in
In the vacuum room 15 the vacuum process will start and this is performed is such a way that the cigarettes and packages are not damaged by the low vacuum, read under pressure. The flaps 7 of the master box 5 are in downside position and the PE liner is “straight” up and placed between the seal bar and flushing pipes. When the required vacuum is reached the Nitrogen injection process starts. By inserting Nitrogen into the vacuum room and also straight into the liner 1 the Oxygen level inside the liner will go down. By repeating the vacuum and Nitrogen injection process several times the O2 level will be reduced until 2 to 5%. It is possible to reduce the O2 level more but this will take too much time and does not fit in the logistic process of the customer. After the vacuum nitrogen injection process the liner is sealed. This sealing process takes place in the vacuum room.
Then the vacuum room 15 is opened and the master box 5 is taken out of the vacuum room and the flaps 7 are folded to the closed position and taped. This is schematically illustrated in
Although the present invention is elucidated above on the basis of the given drawings, it should be noted that this invention is not limited whatsoever to the embodiments shown in the drawings. The invention also extends to all embodiments deviating from the embodiments shown in the drawings within the context defined by the claims. Instead of cigarettes the master box with liner can also be filled with other finished tobacco goods e.g. pipe tobacco, tobacco for roll your own.
Claims
1. A method for packaging finished tobacco goods in a master box, the method comprising the steps of:
- providing a liner made of PE with an EVOH barrier, or aluminium;
- lining the master box with the liner;
- filling the master box, with the liner, with the finished tobacco goods;
- placing sachets with oxygen absorbers in the master box;
- placing the master box in a vacuum room;
- reduce pressure in the vacuum room and in the liner and the master box;
- injecting Nitrogen in the vacuum room and the master box;
- repeating the steps of reducing pressure and injecting Nitrogen several times; and
- sealing the liner and the master box.
2. Method according to claim 1, characterized in that the method further comprises the step of placing sachets with humidity absorbers into the master box before placing the master box in the vacuum room.
3. The method of claim 1, wherein the step of lining the master box is done by an automatic machine which cuts a part of a tube foil, seals the bottom of the liner, and folds the liner into the master box.
4. The method of claim 1, wherein the step of lining the master box is done manually by pulling the liner, already cut on the right size and including a seal, over a mall which has the same size as the master box, pulling the master box over the mall including the liner, pulling the liner over the flaps of the master box, and pulling the master box including the liner.
5. The method of claim 1, wherein before placing the master box in the vacuum room, the vacuum room is tailor made with a working space inside that is slightly larger than the master box with the flaps in an open or side wards position.
Type: Application
Filed: Jan 9, 2013
Publication Date: Jul 30, 2015
Inventors: Frederik BERGWERFF , Louis Jean RENNES VAN , Robert George MCCARTHY , Simon Edward CUNNINGHAM (Taunton Somerset)
Application Number: 14/426,089