A packaging unit comprises at least one first piece of packaging material, wherein the first piece of packaging material has a coated paper, which has a base paper and at least three coatings applied one on top of the other on the base paper. The at least three coatings have in a sequence in which they are given, starting from the base paper, a first barrier layer, comprising at least one hydrophobic polymer, a second barrier layer, comprising at least one hydrophilic polymer, and a third barrier layer, comprising at least one hydrophobic polymer. Furthermore, the packaging is closed in a gas-tight manner.

A multilayer barrier film comprises an oriented outer film and a sealing layer attached to the oriented outer film, and the oriented outer film has 1) a first exterior layer containing a first polymeric material having a moisture vapor transmission rate (MVTR) of greater than or equal to 10 gram.Math.mil/100 in.sup.2/day, 2) a first EVOH layer adjacent to the first exterior layer, 3) an interior layer adjacent to the first EVOH layer, and 4) a second EVOH layer adjacent to the interior layer, the multibarrier film exhibiting rapid recovery of oxygen transmission barrier after exposure to a retort process.

A package for retaining a food item includes a tray with a base connected to at least one sidewall. The sidewall extends away from the base to a rim to define an inner chamber. The tray is made of a fluid impermeable material to retain fluids in the inner chamber. The package also includes a shelf made of the fluid impermeable material that is removably supported in the inner chamber such that the shelf is spaced apart from the base of the tray to permit an absorbent pad to be positioned therebetween. The shelf is configured to support the food item in the inner chamber separated from the absorbent pad.

A package for retaining a food item includes a tray with a base connected to at least one sidewall. The sidewall extends away from the base to a rim to define an inner chamber. The tray is made of a fluid impermeable material to retain fluids in the inner chamber. The package also includes a shelf made of the fluid impermeable material that is removably supported in the inner chamber such that the shelf is spaced apart from the base of the tray to permit an absorbent pad to be positioned therebetween. The shelf is configured to support the food item in the inner chamber separated from the absorbent pad.

The invention concerns a manufacturing process for producing hermetic single-use food containers, including: forming a container body (30) having an peripheral rim (31), placing the container body in a sealing head having a first die (2) and a second die (8) having cooperating annular sealing surfaces (4, 10) facing the rim (31), sealing a closing lid (34) placed over the container body with the rim (31) by applying the first die (2) and the second die (8) one against the other. According to the invention, the first die (2) is provided with a continuous annular rib (6) in its sealing surface (4), the rib having a height (h) which is at least equal to a maximum depth of wrinkles that might appear on the rim upon forming the container body, whereby a sealing groove (12) is formed by the rib (6) in a side of the rim during the sealing.

A multilayer film: an adhesive layer A: an extrudable hot-melt self-adhesive composition; a complexable thin layer B; and a heat-sealable and cleavable layer C of a linear copolyester C1 obtained by polycondensation of a composition of monomers: at least one diol (i), at least one compound (ii) chosen from terephthalic acid or a diester derivative and at least one compound (iii) chosen from an aromatic or aliphatic dicarboxylic acid or a diester or anhydride derivative; the amounts of the monomers (i), (ii) and (iii) used in the polycondensation such that the softening temperature of C1 is below 190° C. A process for producing the multilayer film by co-extrusion blow-molding. A resealable packaging comprising a PET-based receptacle and a seal of said multilayer film, the heat-sealable and cleavable layer (C) of which is heat-sealed on the receptacle.

A paper-industry article for making an outer skeleton (3) of a container (2) which also includes an inner layer (9) of thermoplastic material and which has a bottom wall (6), a plurality of lateral walls (5) and an annular perimetric flange (4), the outer skeleton (3) extending at the perimetric flange (4), at the lateral walls (5), at the bottom wall (6), wherein the paper-industry article (1) includes a continuous annular frame (7) intended to constitute the outer skeleton (3) of the container (2) at the perimetric flange (4) of the container (2), and a plurality of wings (10) which extend starting from the continuous annular frame (7), each of the wings (10) being intended to constitute the outer skeleton (3) at one of the lateral walls (5) of the container (2), and at least one of the wings (10) also being intended to constitute the outer skeleton (3) also at the bottom wall (6) of the container (2).

A paper-industry article for making an outer skeleton (3) of a container (2) which also includes an inner layer (9) of thermoplastic material and which has a bottom wall (6), a plurality of lateral walls (5) and an annular perimetric flange (4), the outer skeleton (3) extending at the perimetric flange (4), at the lateral walls (5), at the bottom wall (6), wherein the paper-industry article (1) includes a continuous annular frame (7) intended to constitute the outer skeleton (3) of the container (2) at the perimetric flange (4) of the container (2), and a plurality of wings (10) which extend starting from the continuous annular frame (7), each of the wings (10) being intended to constitute the outer skeleton (3) at one of the lateral walls (5) of the container (2), and at least one of the wings (10) also being intended to constitute the outer skeleton (3) also at the bottom wall (6) of the container (2).

An easy-peel laminated food can, comprising a can body (100) made by punching a laminated metal sheet, and a cover body (200) made of a laminating film. The can body (100) comprises a cavity (110) provided with an opening (112) and an annular bonding body (120) circumferentially arranged at the edge of the opening (112), and the cover body (200) and the annular bonding body (120) may be thermally pressed and bonded to be sealed.

A container for holding bulk solids, the container including a tubular body extending at least partially around an interior of the container to form a tubular body having a top end and a bottom end, at least one sealing member positioned in the interior of the container spaced away from each of the top end and the bottom end of the tubular body, the at least one sealing member sealably engaging at least a portion of the tubular body, a reclosable lid attached to the top end of the tubular body to form a closed top end of the container, the reclosable lid comprising pulp fibers, and a bottom plate attached to the bottom end of the tubular body to form a closed bottom end of the container, the bottom plate comprising pulp fibers.