# US 8,147,933 B2 · Textile food casing impregnated with food additive > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,147,933 B2 - Document ID: US8147933B2 - Status: Granted - Kind: B2 - Application number: 10/548,752 - Filed: 2004-03-29 - Published: 2006-11-09 - Granted: 2012-04-03 - Earliest claimed: 2003-03-31 - Assignees: Kalle GmbH - Inventors: Christian Auf Der Heide; Dirk Auf Der Heide; Erna Kastl; Martina Koenig; Juerg-Heinrich Kallweit - Web page: https://patentgrep.com/patent/US8147933B2 ## CPC - A22C 13/0013: {Chemical composition of synthetic sausage casings} - A22C 2013/0046: {suitable for impregnation with flavouring substances, e.g. caramel, liquid smoke, spices} - Y10T 428/1324: Flexible food casing [e.g., sausage type, etc.] - Y10T 428/1362: Textile, fabric, cloth, or pile containing [e.g., web, net, woven, knitted, mesh, nonwoven, matted, etc.] - Y10T 428/1369: Fiber or fibers wound around each other or into a self-sustaining shape [e.g., yarn, braid, fibers shaped around a core, etc.] - Y10T 428/1379: Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit - Y10T 428/139: Open-ended, self-supporting conduit, cylinder, or tube-type article - Y10T 428/1393: Multilayer [continuous layer] - A22C: PROCESSING MEAT, POULTRY, OR FISH (preserving A23B; obtaining protein compositions for foodstuffs A23J1/00; fish, meat or poultry preparations A23L; disintegrating, e.g. chopping meat, B02C18/00; preparation of proteins C07K1/00) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract The invention relates to a tubular food wrapping made of an absorbent material that is imbibed with colorants and/or flavorings which can be transferred to a food item placed in the wrapping. The inventive food wrapping consists of a textile envelope, preferably comprising a longitudinal seam. Also disclosed are a method for producing said wrapping and the use thereof. ## Claims ### Claim 1 A tubular food casing consisting of (i) textile material, (ii) dyes, aroma substances and/or flavorings and, optionally, (iii) at least one outer coating, wherein said textile material can absorb said dyes, aroma substances and/or flavorings, and said dye, aroma substances and/or flavorings can then be transferred to a food situated in the casing, and the textile material has a weight per unit area of 50 to 150 g/m2. ### Claim 2 (depends on 1) The food casing as claimed in claim 1, wherein the food casing comprises a longitudinal seam. ### Claim 3 (depends on 1) The food casing as claimed in claim 1, wherein the material is impregnated with dyes, aroma substances and/or flavorings. ### Claim 4 (depends on 1) The food casing as claimed in claim 1, wherein the textile material consists of natural fibers, linen, silk, wool, of modified natural fibers, of synthetic fibers, or of mixtures of these fibers. ### Claim 5 (depends on 1) The food casing as claimed in claim 1, wherein the food casing has a weight per unit area of 50 to 300 g/m2. ### Claim 6 (depends on 1) The food casing as claimed in claim 1, wherein the dye, aroma substance and/or flavoring is a liquid smoke, a grill aroma, a spice, a spice extract, coriander, curry, paprika, paprika flavor, cinnamon, caramel, a fruit aroma or a marinade. ### Claim 7 (depends on 1) The food casing as claimed in claim 1, wherein the casing for raw sausage applications has a water vapor permeability of greater than 150 g/m2·d. ### Claim 8 (depends on 1) The food casing as claimed in claim 1, wherein the longitudinal seam is produced by sewing, gluing, and/or by sealing tape welding. ### Claim 9 (depends on 1) Cased raw sausage, scalded-emulsion sausage, cooked-meat emulsion sausage or packaged cheese comprising the food casing as claimed in claim 1. ### Claim 10 (depends on 1) The food casing as claimed in claim 1, wherein said dyes, aroma substances and/or flavorings are liquid. ### Claim 11 (depends on 1) The food casing as claimed in claim 1, wherein the dye, aroma substance and/or flavoring is combined into a mixture with a binder or a binder mixture. ### Claim 12 (depends on 11) The food casing as claimed in claim 11, wherein the binder comprises a protein, casein, zein, wheat protein, soybean protein, pea protein, a polysaccharide or a derivative thereof, alginic acid and/or alginate, chitosan, pectin, carrageenan, starch or starch derivatives. ### Claim 13 (depends on 1) The food casing as claimed in claim 1, wherein the food casing has at least one outer coating. ### Claim 14 (depends on 13) The food casing as claimed in claim 13, wherein the outer coating is a water vapor barrier and/or oxygen barrier. ### Claim 15 (depends on 14) The food casing as claimed in claim 14, wherein the outer coating is a one- or two-layer coating comprising an acrylic resin and/or a polyvinylidene chloride resin. ### Claim 16 (depends on 15) The food casing as claimed in claim 15, wherein the outer coating resin has units of at least one of the following monomers: acrylates, methacrylates, vinyl acetate, vinyl alcohol, ethylene, butadiene, styrene, acrylic acid, methacrylic acid, acrylamide and/or acrylonitrile. ### Claim 17 (depends on 13) The food casing as claimed in claim 13, wherein the coating after drying has a weight of 0 to 150 g/m2. ### Claim 18 (depends on 13) A tubular food casing as claimed in claim 13, wherein (i) the food casing is a raw sausage casing and the outer coating has a layer weight after drying of up to 30 g/m2 or (ii) the food casing is a scalded-emulsion or cooked-meat emulsion sausage casing and the outer coating has a layer weight after drying of 30 to 150 g/m2. ### Claim 19 (depends on 13) The food casing as claimed in claim 13, wherein a water vapor permeability for scalded-emulsion sausage applications and cooked-meat emulsion sausage applications of up to 150 g/m2·d has been imparted via one or more outer coatings alone. ### Claim 20 (depends on 1) A method for producing a food casing as claimed in claim 1, which comprises (i) preparing a sheet-like textile flat material, (ii) optionally providing the flat material on one side with at least one layer which acts as a water vapor barrier and/or oxygen barrier, (iii) applying to the side of the flat material opposite the optional barrier layer at least one dye, aroma substance and/or flavoring, (iv) optionally trimming the flat material to the correct width, (v) shaping the flat material to form a tube having overlapping longitudinal edges, the at least one dye, aroma substance and/or flavoring being situated on the inside of the tube, and (vi) fixing the overlapping edges by a seam. ### Claim 21 (depends on 20) The method as claimed in claim 20, wherein the dye, aroma substance and/or flavoring is a solid food additive which, before the application, is combined with a binder or a binder mixture. ### Claim 22 (depends on 1) A method for producing a food casing as claimed in claim 1, which comprises (i) preparing a sheet-like textile flat material, (ii) optionally providing the flat material on one side with at least one layer which acts as a water vapor barrier and/or oxygen barrier, (iii) shaping the optionally coated flat material to form a tube having overlapping longitudinal edges, the layer acting as water vapor barrier and/or oxygen barrier being situated on the inside of the tube, (iv) fixing the overlapping longitudinal edges by a seam, (v) applying to the outside of the tube at least one dye, aroma substance and/or flavoring and (vi) inverting the tube. ### Claim 23 A tubular food casing comprising textile material formed from fibers, said textile material ensuring the mechanical stability of said casing and further absorbing dyes, aroma substances and/or flavorings, wherein said dye, aroma substances and/or flavorings can then be transferred to a food situated in the casing and the textile material has a weight per unit area of 50 to 150 g/m2, said food casing comprising an outer coating that essentially only fills the interstitial spaces between the fibers, wherein said casing can be completely removed from the food without delamination, said food casing (i) forming a single layer, (ii) said textile material having a textile structure selected from woven, knitted, laid-scrim, batt or spunbonded, and (iii) said casing further comprising said coating applied in an amount to allow said textile structure to be recognized within the coated casing. ### Claim 24 A shirrable tubular food casing consisting of (i) textile material providing mechanical stability to said casing, (ii) an impregnation comprising dyes, aroma substances and/or flavorings and, optionally, (iii) barrier consisting of at least one outer barrier coating formed from an acrylic resin and/or a polyvinylidene chloride resin, wherein said textile material can absorb said dyes, aroma substances and/or flavorings, and said dye, aroma substances and/or flavorings can then be transferred to a food situated in the casing. ### Claim 25 (depends on 24) A food casing as claimed in claim 24, wherein the textile material has a weight per unit area of 50 to 110 g/m2.