A tubular, seamless, water vapour permeable, smokable, biaxially draw-oriented and partially or completely heat-set food casing is provided having at least two layers based on thermoplastic polymers. At least one layer A, which does not form the inside layer, comprises a blend of aliphatic (co)polyamide and at least one hydrophilic polymer, while the inside layer I comprises a blend of aliphatic or isocyclic (co)polyamide and a block copolymer selected from polyether-amide, polyether-ester and polyether-urethane. The casing is produced by a tubular-film blowing process or a process with biaxial tubular-film draw-orientation. The casing is envisaged more particularly as synthetic sausage casing, especially for smoked raw sausage, such as salami.

The present invention relates to a multilayer film, especially to a multilayer thermoplastic film, which may be used for food packaging, wherein the multilayer film according to the present invention may be provided, on its inner side, with a food additive, particularly with a flavoring and/or coloring and/or an aroma producing food additive (such as e.g. a liquid smoke), which food additive is then released and transferred onto the surface of a foodstuff encased in the multilayer film during cooking and/or processing of the foodstuff.

Tubular sausage casings can be prepared from non-animal materials, primarily starches and flours by film-casting followed by gluing with an edible glue composed of konjac and carrageenan. In this way, it has been made possible to prepare non-animal meat casings commercially, that can be used with conventional sausage production technology.

A shirr-stable, tubular food casing having a glued, permanently elastic longitudinal seam based on a flat fibrous textile material coated with acrylic, collagen and/or a protein derived therefrom is provided. The seam is generated using a reactive hotmelt glue. The glued seam is resistant to boiling for a long time and also exhibits sufficient stability thereafter. Exemplary textile materials include a consolidated nonwoven or spunbonded nonwoven, a woven fabric, loop-formingly knitted fabric, laid fabric, loop-drawingly knitted fabric. To form the casing, the textile material is coated in the flat state. The coated textile material is cut into strips according to the diameter of the casing to be produced and glued using a reactive hotmelt glue, such as a PUR hotmelt glue, to form the tube. The food casing is preferably used as artificial sausage casing or for wrapping cheese or fish.

The present invention relates to a method of manufacturing a plastic film (i.e. preferably a thermoplastic film), particularly a (thermo)plastic food packing film, especially a detectable (thermo)plastic film, which plastic film comprises detectable particles incorporated therein, as well as to the plastic film thus produced and to its applications and usages (i.e. its use).

The present invention provides a multi-layered coextruded thermoplastic food casing comprising: at least one thermoplastic porous absorbing layer; and at least one layer having a barrier effect for water vapor and/or oxygen, wherein the at least one layer having a barrier effect for water vapor and/or oxygen has an average layer thickness in a range of from 5 to 60 m over the entire surface area, wherein the at least one thermoplastic porous absorbing layer comprises as a main component at least one thermoplastic polymer material selected from the group consisting of (co)polyamides and (co)polyolefins, wherein the at least one thermoplastic porous absorbing layer comprises areas having a reduced average layer thickness and areas having a non-reduced average layer thickness, wherein the average layer thickness of the at least one thermoplastic porous absorbing layer in areas having a non-reduced average layer thickness is in a range of from 10 to 200 m, wherein the average layer thickness in areas having a reduced average layer thickness is lower by 7 to 140 m and is reduced by a range of from 30 to 85% compared to the areas having a non-reduced average layer thickness of the at least one thermoplastic porous absorbing layer, and wherein both areas having a reduced average layer thickness and a non-reduced average layer thickness comprise pores which are able to absorb a functional additive.

The present invention provides a functional additive transferring (co)extruded thermoplastic food casing having a water vapor barrier and/or oxygen barrier effect wherein an inside surface of the thermoplastic food casing has a textured surface which forms a three-dimensional pattern of higher and lower retaining capacity for a functional additive, wherein the thermoplastic food casing having a textured surface in case of a monolayer casing or an inner layer comprising the inside surface having a textured surface in case of a multilayer casing comprises as a main component at least one thermoplastic polymer material selected from the group consisting of (co)polyamides, (co)polyolefins, (co)polyester and vinylidenchloride (co)polymers, wherein the (co)extruded thermoplastic food casing does not comprise a net and/or a material forming a net or any other three dimensional structure on its outside surface, wherein the average thickness of the thermoplastic food casing in the areas having a higher retaining capacity is in a range of from 1 to 100 m, wherein the average thickness of the thermoplastic food casing in the areas having a lower retaining capacity is in a range of from 191 to 2000 m, provided that the thickness difference between the average thickness in the areas having higher retaining capacity and the average thickness in the areas having a lower retaining capacity is in a range of from 160 to 1950 m and that a ratio of the average thickness of the thermoplastic food casing in the areas having a higher retaining capacity and the average thickness of the thermoplastic food casing in the areas having a lower retaining capacity is in a range of from 0.002 to 0.25.

Provided is a netted food casing, which prevents a net from being easily separated from a nonwoven fabric, can inhibit inclusion of foreign substances, and is used as an inexpensive packing material. A netted food casing (X) includes a nonwoven fabric (1) and a net (2). The nonwoven fabric (1) includes a thermoplastic synthetic fiber, and the net (2) includes one of a thermoplastic resin and a thermoplastic synthetic fiber. The nonwoven fabric (1) and the net (2) are thermally laminated to form the netted food casing (X).

The present invention relates to a method of manufacturing a plastic film (i.e. preferably a thermoplastic film), particularly a (thermo)plastic food packing film, especially a detectable (thermo)plastic film, which plastic film comprises detectable particles incorporated therein, as well as to the plastic film thus produced and to its applications and usages (i.e. its use).

The present invention relates to a method of manufacturing a cellulosic film (cellulose film), particularly a cellulosic food packing film, especially a detectable cellulosic film, which cellulosic film comprises detectable particles incorporated therein, as well as to the cellulosic film thus produced and to its applications and usages (i.e. its use).