RECYCLABLE RETORT PACKAGE

Abstract

The present disclosure relates to a recyclable retort package made of one type (mono) material. Specifically disclosed herein is a recyclable retort package that includes an outer layer and an inner layer, wherein the outer layer includes oriented polypropylene material and the inner layer includes polypropylene material.

Claims

1. A recyclable retort package comprising: an outer layer and an inner layer; and wherein the outer layer comprises oriented polypropylene material (OPP) and the inner layer comprises polypropylene (PP) film produced by a five to seven or nine layer co-extrusion blowing technique.

2. The retort package according to claim 1, further comprising a middle layer between the inner layer and the outer layer.

3. The retort package according to claim 2, wherein the middle layer comprises oriented polypropylene material (OPP).

4. The retort package according to claim 3, further comprising an adhesive material to attach the inner layer and the middle layer to each other.

5. (canceled)

6. The retort package according to claim 1, wherein the inner layer comprises ethylene vinyl alcohol (EVOH) and more than one binding material or tie layer that reduces oxygen permeability.

7. The retort package according to claim 1, further comprising an adhesive material to attach the inner layer and the outer layer to each other.

8. The retort package according to claim 1, wherein the outer layer comprises a printing.

Description

DETAILED DESCRIPTION

[0017] The invention, in general, a retort package comprising an inner layer and an outer layer, wherein the outer layer comprises oriented polypropylene material (OPP) and the inner layer comprises polypropylene (PP) material.

[0018] In an embodiment of the invention, the retort package comprises two layers, an outer layer and an inner layer.

[0019] In an embodiment of the invention, the outer later comprises OPP (Oriented polypropylene) material. In an embodiment of the invention, the outer layer is printed.

[0020] In an embodiment of the invention, the inner later comprises polypropylene (PP) material. In an embodiment of the invention, in addition to the said material, it also comprises EVOH (Ethylene vinyl alcohol) and a plurality of binding materials. These binding materials are materials referred to as tie layer.

[0021] In an embodiment of the invention, the inner layer comprises a polypropylene (PP) film produced by a nine layer co-extrusion blowing technique.

[0022] The polypropylene (PP) film material contained in the material of the invention is produced by a blowing technique in 5-7 or 9 layer extrusion machines. In this production technique, it is ensured that suitable raw materials are brought together and they resist a predetermined temperature value.

[0023] In an embodiment of the invention, in the polypropylene (PP) material comprising EVOH produced by the blowing technique, the materials referred to as tie layer are used as binding materials.

[0024] In an embodiment of the invention, the EVOH and the binding materials used can resist a temperature of 130 degrees for 60 minutes.

[0025] In an embodiment of the invention, there is a middle layer in addition to the outer layer and the inner layer. In this embodiment, the middle layer comprises an oriented polypropylene material. The purpose of using the middle layer is to enhance oxygen permeability.

[0026] In an embodiment of the invention, an adhesive material (glue) is used to attach OPP and PP to each other. In other words, the retort package of the invention comprises an adhesive material (glue) to attach the inner layer and the outer layer or the middle layer and the inner layer to each other.

[0027] Briefly, the invention is a recyclable retort package, comprising an outer layer and an inner layer, wherein the outer layer comprises oriented polypropylene (OPP) material and the inner layer comprises polypropylene (PP) material.

[0028] Since the package of the invention comprises only one type of raw material, the resulting retort package can be easily used in recycling after use. In this way, used packages are brought back to the industry, and environmental pollution caused by the disposal of packages after use is reduced.