Packaging unit having improved sealing and a method of forming a packaging unit having improved sealing

Abstract

A packaging unit for hygiene articles is formed from a sheet of material having an inner surface and an outer surface. The inner surface includes an edge zone including an inner edge portion and an outer edge portion. The sheet has at least one folding axis dividing the sheet into a first region and a second region. The inner edge portion and the outer edge portion of the edge zone of the first region is provided with adhesive, and the other of the inner edge portion and the outer edge portion of the edge zone of the first region is adhesive-free. Further, one of the inner edge portion and the outer edge portion of the edge zone of the second region is provided with adhesive, and the other is adhesive-free in a complementary manner to the edge zone of the first region.

Description

TECHNICAL FIELD[0001]The present invention relates to a packaging unit for hygiene articles, the unit being formed from a sheet of material, the sheet having an inner surface and an outer surface, the inner surface comprising an edge zone comprising an inner edge portion and an outer edge portion, the sheet having two folding axes, the folding axes dividing the sheet into a first region, a second region and a third region, wherein the packaging unit may be folded along the folding axes with the first, second and third regions in an overlapping configuration. The present invention also relates to a method of forming a packaging unit for hygiene articles from a sheet of material, a web of material for forming packaging units, as well as to a method of forming a web of material for forming packaging units.BACKGROUND OF THE INVENTION[0002]Disposable hygiene articles, such as sanitary napkins and panty liners, are normally packaged individually in e.g. an easy wrap or a single wrap. Indi...

AI Technical Summary

Benefits of technology

The packaging unit can be completely unfolded for new items and securely resealed for used items, maintaining hygiene and aesthetics, with controlled adhesive strength for easy opening and resealing, preventing adhesive migration and ensuring a tight, odour-tight package.

Problems solved by technology

Such a wrapper suffers from disadvantages of requiring an additional amount of material, and not being able to form a tight disposal package.

A major disadvantage of such a wrapper is that it is not possible to form a tightly sealed package when the article is to be disposed of.

However, since the adhesive-coated surfaces are in contact with each other, it is impossible to unfold the sheet completely for positioning of a used item, which thus has to be inserted into the rather limited container part.

This may be disadvantageous, since a used hygiene article often becomes more bulky than before use, making it difficult to insert it into the container part.

The main drawback of welded packaging units of this kind is that they cannot be used satisfactorily as disposal bags since, once opened, the packages cannot be resealed and therefore do not allow a used article to be packaged in an acceptable manner with regard to hygiene.

Furthermore, the unfolded packaging sheet has non-aesthetic appearance, since the broken welds are often uneven and frilly.

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