Reclosable packing system
AssigneeSafta S.p.A.
InventorsFranco Navarini, Armando Molinari
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Abstract
The invention concerns flexible, composite, multilayer sheets which act as means to open and close appropriately shaped containers (f.i. trays) of products consumable also in more successive doses and which are characterized by an opening edge, a device to stop said opening, a tamper evident device and a protection layer. Said multilayer sheets include at least: a first superior outer layer consisting of at least a film acting as support of the printing and of a press-sensitive adhesive; a second inferior inner layer consisting of at least a thermosealant film and characterized by die-cut zones having the function to detemine the access mouth shape and to create an invitation to the eased opening; and an intermediate layer consisting of a press-sensitive adhesive.
Claims18
A resealable packaging system comprising flexible composite multilayer foils forming a lid which may be opened and reclosed repeatedly, said multilayer foil comprising:
- an outer multilayer film including:
- a mechanically resistant layer adapted to receive printed data;
- a gas barrier layer;
- and
- a layer of pressure-sensitive adhesive;
- a second lower inner film having a cut line giving access to a container closed by said multilayer film said lower inner film comprising:
- a mechanically resistant layer;
- a thermosealing layer;
- and
- a pressure-sensitive adhesive layer;
- said packaging system having;
- an open border;
- an opening stopping device;
- a protecting layer for guarding against possible undesirable effects of a product in the package;
- a tamper evident device;
- and
- an easy open lifting border.
A flexible composite foil including a multilayer film being adapted as an opening and reclosing means for a container of products to be consumed in successive does, said composite foil comprising at least:
- i) an outer multilayer film including a mechanically resistant layer being adapted to serve as a printing support, and a press-sensitive adhesive support;
- ii) an inner film having an incision or die-cut defining the configuration of a container access mouth and an opening end comprising a mechanically resistant layer;
- and
- iii) a press-sensitive adhesive layer disposed between the outer and the inner films, the flexible composite foil being characterized in that it comprises an opening border and a protective layer for protection against possible aggressive effects of packaged contents.
Dependencies are inferred from the claim text.