Food packaging material with a rough and natural appearance
[Abstracts] The present invention relates to compositions comprising at least one aliphatic polyamide and/or copolyamide, at least one inorganic and/or organic filler, and optionally at least one containing a diol unit and/or a polydiol unit. Monolayer or multilayer food packaging materials prepared from thermoplastic mixtures of aliphatic polyamides and/or copolyamides. The maximum surface roughness R#-[max] of the packaging material is 3 to 60 Î¼m according to DIN 4768, and the water vapor permeability at an average thickness of 100 Î¼m is less than 50 g/m#+d as determined by DIN 53122. . The packaging material provides a special matte, rough and very natural surface structure. The packaging material is prepared by extrusion with an annular nozzle and subsequent blow-molding or biaxial stretching orientation. The packaging material is particularly suitable for use as an artificial casing especially suitable for hot cooking sausages. Sovereign Items 1. A single-layer or multi-layer food packaging material prepared from a thermoplastic mixture containing at least one aliphatic polyamide and/or copolyamide, characterized in that the mixture includes at least one inorganic and/or Or an organic filler, wherein the maximum surface roughness Rmax of the packaging material is 3 to 60 Î¼m according to DIN 4768, and the water vapor permeability of the packaging material at an average thickness of 100 Î¼m is less than 50 g/m 2 d as measured by DIN 53122.