Hoechst Aktiengesellschaft

Hermann Winter

Klaus-Dieter Hammer

Manfred Siebrecht

Leo Mans

Heinz Luchterhand

Erwin Kindl

Theo Krams

Karl-Heinz Wallhausser

Harald Schenk

Gerhard Krag

Walter Spietschka

Rolf Buettner

Ulrich Kinzler

A cellulose-based tubular foodstuffs casing having a coating present on its inner and/or outer surfaces, the coating being composed of chitosan chemically linked to the cellulose.

Tubular foodstuff casing having a chitosan coating

A modified liquid smoke solution containing unmodified aqueous liquid smoke solution, an alkaline neutralizing agent, a synthetic and/or natural oil, a viscosity-increasing component, and one or more emulsifier(s) can be applied to the inner and/or outer surface of a cellulose food casing resulting in uniform smoke transfer to encased food.

Tubular food casing having a modified liquid smoke solution applied

A cellulose hydrate-based flat or tubular film which is useful as a food casing, particularly preferably as a sausage casing. In addition to cellulose hydrate, it contains a homopolymer having units of N-vinylpyrrolidone, N-vinylpyridone or N-vinylcaprolactam and/or a copolymer containing these units and additionally units of the formulae II and/or III: ##STR1##

Cellulose hydrate-based flat or tubular film

A tubular food casing, particularly sausage casing, wherein the inner surface of a sausage casing based on cellulose, is provided with a coating comprising alginates, alginic acid, chitosans, or a combination of these active substances, is distinguished by improved peelability.

Tubular food casing with improved peelability

A tubular food casing based on cellulose, which on its inner surface has a coating which comprises lecithin and at least one of alginate, chitosans, and casein, has improved peelability from its contents.

A tubular foodstuff casing, in particular synthetic sausage casing, based on cellulose contains a di-n-didecyl-dimethylammonium compound as a fungicidal agent, which is optionally used in admixture with salts of sorbic acid, fungicidal heterocyclic compounds, such as an isothiazolone compound, or glycerol monolaurate. The coating prevents mold attack on the casing.

Tubular foodstuff casing made of cellulose hydrate, in particular

A paper for fiber reinforcement in a base layer of a cellulose-based packaging film, in particular a tubular artificial sausage casing, or for tea-bags, wherein the paper includes alginic acid and/or an alginate which is substantially insoluble in water. A process for producing the paper which includes adding a water-soluble alginate to an aqueous suspension of cellulose fibers and precipitating the water-soluble alginate so as to form a substantially water-insoluble alginic acid or alginate.

Paper and fiber-reinforced packaging film and sausage products produced

A film, preferably used as a tubular artificial sausage casing, having a base layer of a material which may be fiber-reinforced, wherein the material includes a mixture of cellulose hydrate and alginic acid and/or alginate. The alginate may be the calcium salt of alginic acid. In addition, a process for producing the film by the viscose process is also described, wherein a mixture of alkaline viscose solution and a soluble salt of alginic acid is coagulated by means of an acidic precipitating fluid.

Flat or tubular film based on cellulose hydrate, process for producing

The tubular packaging casing, in particular a synthetic sausage casing, comprised of fiber-reinforced cellulose, in which the fiber-reinforcement is coated at least on the outside with a cellulose layer, and a surface layer on the cellulose layer. The surface layer comprises a water-insoluble cationic resin containing particles of fibers of synthetic resin or cellulose, in particular particles of a vinyl chloride homopolymer or copolymer.

Packaging casing based on cellulose having improved processing

The tubular foodstuff casing, in particular the synthetic sausage casing, made of cellulose hydrate comprises an external covering or impregnation comprising a fungicidal heterocyclic compound, in particular a benzimidazole or isothiazolone derivative substituted in the 2-position, which can be used, if desired, in admixture with glycerol monolaurate. The coating prevents infestation of the casing by molds, in particualr when it is stored in the moist state.

Described is a tubular artificial sausage casing based on fiber-reinforced cellulose which shows, in the completely soaked state as compared to the state prior to soaking in water, an increase in length of from about 0.8 to 2.5% and a transverse shrinkage of from about 2.5 to 5.2%. Preferably, the change of diameter of the casing at the same change of pressure in the range above 20 kPa is approximately equal for the completely soaked state and for a moisture content of from about 22 to 27% by weight. In a preferred embodiment, the sausage casing can be filled with sausage meat without being previously soaked in water and, for this purpose, has a moisture content of from about 22 to 27% by weight and a glycerol content of from about 17 to 20% by weight, in each case based on its total weight, and is provided with a fungicide on its outside surface. Described also is the production of the sausage casing according to the viscose process, in which the tube comprised of cellulose hydrate gel shrinks from about 2 to 10% in the longitudinal direction and is strongly expanded in the transverse direction during the final drying process.

Sausage casing with improved uniformity of diameter

The cellulose-based product, in particular in the form of a film, contains in its wall a primary, permanent plasticizer of one or more crosslinked copolymers made from at least two components. One or more of these components are monomer units containing a terminal, ethylenically unsaturated, polymerizable group or compounds of maleic acid, or fumaric acid. A further component comprises units containing thermally crosslinked groups made from N-methylolamides of unsaturated carboxylic acids. A process is furthermore described for the production of this shaped product, in which the copolymer is metered into the viscose, and the N-methylolamide groups are thermally crosslinked with the cellulose.

Permanently plasticized, cellulose-based product

Disclosed is an artificial sausage casing for sausages of the uncooked type which comprises a fiber-reinforced carrier tubing comprising regenerated cellulose and a coating applied to the inner surface of the carrier tubing. The coating comprises a water-insoluble, cured, cationic resin and gluconic acid-.delta.-lactone and, optionally, an oil. The carrier tubing includes a fiber-reinforcement having a coating of regenerated cellulose applied to both surfaces thereof. Preferably, the outer cellulose coating includes from about 10 to 20% by weight, relative to the weight of the sausage casing, of a pigment. The inner cellulose coating is substantially free from pigments. Also disclosed is an uncooked sausage which comprises an artificial sausage casing, as described above, and a sausage material contained in the sausage casing.

Artificial sausage casing for sausages of the uncooked sausage type

Disclosed is an artificial sausage casing comprising a fiber-reinforced, cellulose-based support tubing and a coating layer applied to the outer surface of the support tubing. The external coating layer comprises a casein crosslinked with glyoxal, and having sorbic acid radicals bonded by a salt-like linkage. The amount of casein in the external coating layer ranges from about 80 to 150 mg/m.sup.2, particularly from about 100 to 130 mg/m.sup.2. In a preferred embodiment, the inside surface of the support tubing is provided with a coating layer which serves either to improve the peelability and/or the adhesion between sausage meat and sausage casing or to provide compactness and gas-tightness.

Artificial sausage casing

A tubular or web-shaped casing material resistant to mold fungus comprising cellulose and a fungicidal content of glycerol monolaurate. Alkali metal salts of fatty acids and/or alkyl-, aryl- and/or alkyl-aryl-sulfonates are preferably used as the emulsifier. Also disclosed is a process for manufacturing the casing material described above and a fungicidal agent for cellulose casings comprising glycerol monolaurate.

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Wiesbaden, Germany

Hermann Winter