Package making – Methods – Plural covers
Patent
1994-10-25
1996-08-13
Sipos, John
Package making
Methods
Plural covers
53399, 53578, B65B 1158
Patent
active
055444725
DESCRIPTION:
BRIEF SUMMARY
Method for packaging of bulk goods into a unit-load package and a unit-load package for bulk goods.
BACKGROUND OF THE INVENTION
The invention concerns a method for packaging of bulk goods into a unit-load package.
The invention also concerns an unit-load package for bulk goods, which package consists of an inner package and an outer package.
For packaging, storage, and transportation of bulk goods, box packages or other packages of rigid construction are used, which are placed on a base (usually a pallet). The box packages consist of boxes of corrugated board. The box of corrugated board is, as a rule, provided with an inner sack. When filled such a package has a quadrangular shape and, thus, utilizes the transportation base maximally, even though the package as such is expensive.
Unit-load sacks are also used for packaging, storage, and transportation of bulk goods. A unit-load sack is less expensive than a box package, but its drawback is its round shape when filled, whereby it utilizes the transportation base less efficiently than a box package does.
OBJECTS AND SUMMARY OF THE INVENTION
The object of the present invention is to provide a method for packaging of bulk goods into a resilient package and a resilient package for bulk goods which, when filled, obtains a substantially quadrangular shape and in which, as the base, it is possible to use standard pallets (e.g. EUR, FIN pallets). In this way, it is possible to combine the maximal utilization of space by a box package with the favorable cost of a resilient package. At the same time, the recycling of the used package can be arranged better, because no sorting is required, but the resilient package is recycled as such, and the standard pallet is returned to circulation. In the case of a box package, it is necessary to separate the box, the inner sack, and the base, and the recycling must be arranged through three separate systems.
A further object of the invention is to provide a method for packaging of such bulk goods into a resilient package whose inner friction is very low.
The method in accordance with the invention for packaging of bulk goods into a unit-load package is characterized in that: reinforcement structure is placed on a base, filling, the inner package obtains substantially a form of a parallelepiped, and plastic material, whereby a stable transportation package is formed.
The unit-load package in accordance with the invention for bulk goods is characterized in that the inner package is an inner sack made of a flexible material and provided with a reinforcement structure, which sack has been placed on a base for the time of filling with bulk goods, preferably by suspending or supporting it above the base and that the outer package is an outer package which is made of a plastic material and which surrounds the inner package tightly and gives it adequate stability.
In the method of the invention, it has been realized to use a unit-load package which consists of an inner package made of a flexible inexpensive material and of a surrounding outer package, which gives the unit-load package adequate robustness. As the flexible material of the inner package whose rigidity is relatively low, for example, plastic films, paper, or fabrics can be used. For the time of the filling with bulk goods, the resilient package is suspended or supported above a suitable base, such as a pallet. After the filling with bulk goods, the inner package, which may be provided with a reinforcement structure, is bound to the base, e.g., by means of a tightening foil so that a robust unit, i.e. a unit-load package, is formed. The width of the tightening foil is not an essential factor. The width of the tightening foil may be a conventional width, such as about 500 mm, but, as the tightening foil, it is also possible to use even a full-width tightening foil of a width equal to the height of the entire inner package. Instead of a tightening foil, it is, of course, also possible to use a tightening hood or a shrinking hood.
The reinforcement structure may be a sep
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Koskinen Erkki
Stenmark Tom
Kim Gene L.
Oy W. Rosenlew AB
Sipos John
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