| 摘要 |
A multilayered coextruded stretched thermoplastic food casing comprising: at least one porous inner layer, wherein the porosity of the porous inner layer has been at least partially generated by stretching of the coextruded casing, wherein the porosity of the sum of all porous inner layers is in the range from 5 to 70 % by volume, and at least an inner most porous inner layer has an interconnected porosity, such that said inner most porous inner layer is able to absorb, to retain, to desorb and to transfer at least one transferable functional additive from said at least one porous inner layer to food encased in said casing, at least one layer having a barrier effect for water vapor, at least one layer having adhesion properties, said layer having adhesion properties can be the same or different than said porous inner layer and/or said layer having a barrier effect for water. |
