초록 ▼

In a package for food products having a tendency to exude liquids, an absorbent pad underlying the food product in a tray is made up of an absorbent layer underneath a layer of polyethylene film having an array of elongated, thermoformed apertures. These apertures efficiently transport liquid into t

In a package for food products having a tendency to exude liquids, an absorbent pad underlying the food product in a tray is made up of an absorbent layer underneath a layer of polyethylene film having an array of elongated, thermoformed apertures. These apertures efficiently transport liquid into the absorbent layer and resist reverse flow when pressure is applied to the absorbent pad, thereby making it possible to utilize a paperboard tray. The absorbent layer and apertured polyethylene film can be laminated together with a paperboard base layer, and the laminate can then be die cut and folded to form a tray made up entirely of the laminate and having its bottom and side walls lined with the absorbent material and apertured film.

대표청구항 ▼

[ I claim:] [1.] A package containing a food product having a tendency to exude liquid, the package including an improved absorber comprising a core of absorbent material disposed between first and second layers made of substantially liquid-impervious material, the first layer being a film having an

[ I claim:] [1.] A package containing a food product having a tendency to exude liquid, the package including an improved absorber comprising a core of absorbent material disposed between first and second layers made of substantially liquid-impervious material, the first layer being a film having an inner surface facing the core and an outer surface, and at least part of the first layer having a plurality of apertures with sidewalls projecting from the inner face toward the core, the sidewalls having terminating edges remote from said inner surface of the first layer and in contact with the core, the lengths of the sidewalls of the apertures being at least approximately five times the thickness of the first layer measured from its inner surface to its outer surface, whereby the apertures conduct liquid exuded by the food product to the absorbent core, and resist reverse flow of liquid from the core outwardly through the apertures.