Patent ID: 7022357
Filing Date: 2006-04-04
Classification: A22C,B32B,Y10T

Abstract:
1. A process of preparing a smoke-impregnated tubular casing comprising: (a) providing a tubular casing having interior and exterior surfaces, said tubular casing being suitable for encasing food fillings having a form selected from one of liquid and paste, and said tubular casing being a synthetic tubular casing comprising an outer polyamide layer, an inner polyamide layer, and a middle layer comprising one of an ethylene-vinyl alcohol copolymer and a propylene-based copolymer, said middle layer being interposed between said outer and inner layers, and said middle layer having water-barrier properties and optionally oxygen-barrier properties; (b) applying to the interior surface of said tubular casing a mixture comprising, (c) allowing said mixture to remain in contact with the interior surface of said tubular casing for at least 5 days; and (d) applying a water-in-oil emulsion to the exterior surface of said tubular casing, said water-in-oil emulsion optionally comprising at least one of fungicides and preservatives; and (e) optionally shirring and watering the mixture treated casing thereby forming said smoke-impregnated tubular casing.