EP1746896A1 - Enveloppe pour produits alimentaires, a base de cellulose, a renforcement par materiau fibreux impregne - Google Patents

Enveloppe pour produits alimentaires, a base de cellulose, a renforcement par materiau fibreux impregne

Info

Publication number
EP1746896A1
EP1746896A1 EP05745590A EP05745590A EP1746896A1 EP 1746896 A1 EP1746896 A1 EP 1746896A1 EP 05745590 A EP05745590 A EP 05745590A EP 05745590 A EP05745590 A EP 05745590A EP 1746896 A1 EP1746896 A1 EP 1746896A1
Authority
EP
European Patent Office
Prior art keywords
fibers
cellulose
food
fiber reinforcement
food casing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05745590A
Other languages
German (de)
English (en)
Inventor
Theresia Rieser
Walter Lutz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kalle GmbH and Co KG
Original Assignee
Kalle GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kalle GmbH and Co KG filed Critical Kalle GmbH and Co KG
Publication of EP1746896A1 publication Critical patent/EP1746896A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C13/00—Sausage casings
    • A22C13/0013—Chemical composition of synthetic sausage casings
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C13/00—Sausage casings
    • A22C2013/0046—Sausage casings suitable for impregnation with flavouring substances, e.g. caramel, liquid smoke, spices
    • A—HUMAN NECESSITIES
    • A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
    • A22C—PROCESSING MEAT, POULTRY, OR FISH
    • A22C13/00—Sausage casings
    • A22C2013/0096—Sausage casings cellulosic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1324—Flexible food casing [e.g., sausage type, etc.]

Definitions

  • the invention relates to a food casing based on regenerated cellulose with an insert made of a fiber material. It also relates to a method for producing the casing and its use as an artificial sausage casing.
  • Hemp fiber fleece Hemp fiber fleece.
  • the required wet strength of the nonwoven fabric is achieved by treatment with dilute viscose solution (which contains about 3 to 5% by weight of cellulose), with cellulose acetate solution or with a plastic liquor.
  • the wet-strengthened nonwoven fabric is then cut into strips, the width of the strips corresponding to the caliber of the fiber casings to be produced.
  • the intestine spinning machine the strips are each formed into a tube with an overlapping longitudinal seam, which is then passed through an annular nozzle with an annular slot.
  • Viscose is applied to the nonwoven tube from the outside, from the inside or from both sides via the nozzle.
  • the viscose penetrates the fiber fleece.
  • the outer, inner or double-viscous tube is then passed through acidic precipitation baths in which the cellulose is regenerated from the viscose.
  • the hose then passes through washing baths, possibly also plasticizer baths, and is finally dried.
  • the longitudinal edges of the nonwoven fabric are firmly connected to one another by the regenerated cellulose.
  • An externally viscous tube also has an essentially closed layer of regenerated cellulose on the inside.
  • regenerated cellulose typically, in the case of externally viscose fiber casings, there is a practically continuous layer of the regenerated cellulose on the inside.
  • Fiber intestines show in Compared to non-fiber reinforced cellulose hydrate casings, in any case a significantly improved caliber consistency and also a higher tear resistance.
  • Fiber casings which are produced by the amine oxide process are also known. In this process, instead of the viscose solution, a solution of
  • N-methyl-morpholine-N-oxide in particular the monohydrate thereof, has proven to be a particularly suitable solvent.
  • the cellulose is dissolved in the amine oxide purely physically, without chemical derivatization taking place, as in the viscose process. Coating the one
  • Tubular nonwoven material is then made using ring slot nozzles, essentially as in the viscose process. Instead of regeneration in sulfuric acid baths, cellulose is precipitated in a - frequently cooled - bath from a dilute aqueous amine oxide.
  • EP-A 528 374 discloses a fiber-reinforced, tubular food casing based on cellulose hydrate, which is coated on the inside with chitosan. This improves the adhesive properties of a foodstuff in the casing.
  • EP-A 676 143 is impregnated on the inside with a mixture comprising a separating and an adhesive component, the ratio of adhesive to separating component being in the range from 4: 1 to 1: 4.
  • EP-A 1 042 958 also relates to a tubular food casing based on cellulose hydrate.
  • This shell is provided on the inside with a separation preparation which comprises a) a reactive hydrophobizing component, b) a non-reactive hydrophobizing component and c) an oil and / or lecithin. It is therefore particularly easy to peel and is therefore also suitable for protein-rich and low-fat sausages such as black pudding or poultry scalded sausage.
  • nonwovens made from a mixture of cellulose and synthetic fibers are also known as reinforcements for tubular food casings based on regenerated cellulose (WO 00/40092). These nonwoven fabrics are said to have the advantage that the transverse stretch is more uniform across the width of the nonwoven web upon contact with moisture, i.e. The fleece no longer expands much more at the edges than in the middle.
  • tubular food casings based on cellulose hydrate which have a fiber paper fleece as reinforcement, which is combined with a textile material, for example a woven or knitted fabric made of wool, cotton, cellulose, polyamide, polyester, polyacrylonitrile or polypropylene (US Pat. No. 5,043,194) ,
  • the woven or knitted fabric forms a laminate together with the fiber paper fleece.
  • the textile material alone forms the reinforcement.
  • the textile material generally consists of cellulose fibers, optionally also of mixtures of cellulose fibers with synthetic fibers.
  • the cellulose hydrate layer on the outside of the casings is kept so thin that the textile reinforcement material is still clearly visible.
  • the covers then have a particularly high quality. They are used in particular for types of sausage such as salami.
  • the application of an impregnation or coating on the inside of the food casing to adjust the meat cling means an additional process step, which is also relatively time-consuming and labor-intensive.
  • the object was therefore to provide a tubular, fiber-reinforced food casing based on regenerated cellulose which, without additional internal impregnation or coating, has defined adhesive properties which are matched to the respective food.
  • the object was achieved with an impregnated or coated wet-strength fiber reinforcement which is not penetrated at all or at least not completely by the viscose solution, so that it still has contact with the food.
  • the impregnation or coating on the fiber reinforcement then essentially determines the adhesion of the shell to one inside
  • the present invention accordingly relates to a tubular food casing based on regenerated or precipitated cellulose with a fiber reinforcement, which is characterized in that the fiber reinforcement is impregnated and / or coated with at least one agent which controls its adhesion to a food contained in the casing ,
  • the fiber reinforcement can consist of natural or synthetic fibers or mixtures thereof. Natural fibers are in particular vegetable fibers, for example those made from hemp, abaca, sisal, jute, cotton or flax. Natural fibers can also be obtained from conifers, for example.
  • the term “natural fibers” should also be understood to mean those which are obtained by converting natural raw materials, for example cellulose fibers which are produced from cellulose, viscose fibers, fibers from cellulose esters or fibers from polylactides. Cellulose fibers can be derived from spinnable cellulose solutions the
  • Cellulose esters can be obtained, for example, by esterifying cellulose with (C, - C 4 ) monocarboxylic acids.
  • Synthetic fibers can be made from plastics, which in turn can be produced by polymerization, polycondensation or polyaddition. The plastics are brought into a spinnable form by dissolving or melting and spun using appropriate nozzles. Wet-spun fibers are solidified in a precipitation bath, dry-spun fibers with air.
  • the synthetic fibers can be made, for example, from thermoplastic materials, such as polyolefins (especially polyethylene or polypropylene) or copolymers with olefin units, polyesters (especially polyethylene terephthalate or polybutylene terephthalate) or copolyesters, aliphatic or (partially) aromatic polyamides or copolyamides (especially Polyamide 6, polyamide 6.6 or polyamide
  • thermoplastic materials such as polyolefins (especially polyethylene or polypropylene) or copolymers with olefin units, polyesters (especially polyethylene terephthalate or polybutylene terephthalate) or copolyesters, aliphatic or (partially) aromatic polyamides or copolyamides (especially Polyamide 6, polyamide 6.6 or polyamide
  • Polyacrylate fibers especially fibers made of acrylonitrile or acrylonitrile copolymers, which preferably have vinyl acetate and / or vinyl pyrrolidone as comonomer units
  • Polyacrylate fibers are usually spun from a polymer solution and solidified by precipitation in a precipitation bath.
  • the polymer fibers can also be so-called bicomponent or multicomponent fibers (see Franz Fourne, Synthetic Fibers, Carl Hanser Verlag [1995], pp. 539-549).
  • two or more different polymers are spun together in the same way. In this way, for example, fibers with a polyester and a polyamide
  • the bicomponent or multicomponent fibers include in particular side-by-side types, core-sheath types and matrix fibril types. Different bicomponent or multicomponent fibers can be mixed with one another or also with monocomponent fibers.
  • Fiber reinforcements which comprise a mixture of natural and synthetic fibers are preferred.
  • the proportion of synthetic fibers in the mixture is, for example, 0.1 to 50% by weight, preferably 2 to 15% by weight, in each case based on the total weight of the (dry) fiber reinforcement (without the impregnation or coating).
  • the fibers mentioned form a flat structure, in particular a nonwoven fabric, a woven, knitted or knitted fabric.
  • the nonwovens can be made from staple fibers or filaments (so-called continuous fibers).
  • the fibers can have a preferred direction in the fleece (oriented fleece) or to be undirected (random fleece).
  • the nonwovens can be produced mechanically, for example by needling, meshing or swirling, it also being possible to use very fine high-pressure water jets (known under the keywords “spunlacing” or “hydroentanglement”).
  • the fibers in the fleece can be held together by cohesive and / or adhesive forces.
  • Adhesive bonding occurs, for example, through chemical crosslinking of the fibers or through melting or dissolving so-called binding fibers, which are mixed in during the manufacture of the nonwoven. Solidification by ultrasound is also possible.
  • cohesive crosslinking the fiber surfaces are, for example, dissolved by suitable chemicals and connected by pressure. They can also be welded at elevated temperatures. Spunbonded nonwovens can be obtained by spinning, then laying down, followed by inflating or floating the fibers, the so-called "spunbonding".
  • Spunbonding and spunlacing can also be combined.
  • multi-layer and / or multi-phase nonwovens are available. These can have different fiber materials and / or mixtures of different fibers within one layer or phase.
  • Two-layer or two-phase nonwovens can also be obtained if a melt-spun nonwoven is presented and another fleece is then produced by melt spinning. In this way, nonwovens with even more layers and / or phases can be produced.
  • Wet or dry natural fibers can also be applied to a melt-spun nonwoven made of synthetic fibers, or vice versa.
  • nonwovens of different chemical types can also be bonded to one another adhesively or cohesively.
  • the multilayer or -phase nonwovens generally have particularly advantageous properties, in particular high porosity with high strength and flexibility at the same time.
  • Nonwovens made of or with natural fibers in particular the required wet strength can be achieved or further improved by treatment with binders.
  • Nonwovens based on cellulose fibers that have been treated with a dilute viscose solution or a dilute NMMO / cellulose solution are particularly wet-strength. When binding with the help of diluted viscose solution, the cellulose must be regenerated from the viscose by treatment with acid.
  • Other agents which bind the fibers in the nonwoven are, for example, polyamines, polyalkyleneimines, proteins (which are preferably combined with crosslinking agents), chitin, chitosan, alginate, cellulose ether, polyvinyl alcohol or any mixtures thereof.
  • Particularly preferred binders are polyamide / epichlorohydrin, polyamide / polyamine / epichlorohydrin, melamine / formaldehyde or polyvinylamine resins.
  • the dry weight of the fiber reinforcement is generally 10 to 400 g / m 2 , preferably 15 to
  • the weight is expediently in the lower part of the ranges mentioned, ie approximately 10 to 35 g / m 2 , preferably 15 to 30 g / m 2 , particularly preferably 17 to 26 g / m 2 .
  • the weight of the textile fiber reinforcements is often somewhat higher than that of the nonwoven fabrics, ie approximately 25 to 400 g / m 2 , preferably 30 to 200 g / m 2 .
  • the sheet-like fiber reinforcement is then impregnated and / or coated, at least on the side which later comes into contact with the food, with an agent which controls the adhesion to the food (hereinafter referred to as "adhesion-controlling agent").
  • adheresion-controlling agent an agent which controls the adhesion to the food
  • the wet, partially dried or completely dried fiber reinforcement can be coated or impregnated by means of and the application method. It is preferably applied to the optionally reinforced fiber reinforcement by roller application or by spraying, if appropriate also by dipping. After the treatment with the adhesion-control agent, this is
  • Fiber reinforcement hardly permeable for the viscose to be applied later. If the impregnated fiber reinforcement is formed into a tube and coated with viscose on the outside, then there is no or at least no continuous layer of cellulose hydrate on the inside after the acidic regeneration.
  • the liability tax is expedient
  • adhesion control agents are those which are chemically and / or physically bound to the surface of the fibers of the fiber reinforcement. This is to be understood in particular to mean that the agents are bound to the fibers via ionic bonds, hydrogen bonds and / or covalent bonds.
  • the adhesion control agents which increase the adhesion to a sausage meat include, for example, polyamide / epichlorohydrin, polyamide / polyamine / pichlorohydrin and melamine / formaldehyde resins, polyvinylamines (preferably those with an average molecular weight Mw of 10,000 to 1,000,000
  • the comonomer units are preferably units of (meth) acrylic acid or (meth) acrylic acid derivatives, in particular of (meth) acrylic acid alkyl esters), polyvinylpyrrolidones (middle
  • proteins preferably more than 100,000 daltons
  • proteins aminopectin, chitosan, deacetylated chitin, branched or unbranched polyalkyleneimines.
  • Proteins are optionally combined with crosslinking agents, for example with dialdehydes (such as glyoxal or glutardialdehyde), dialdehyde derivatives, polyurethanes, aziridines, epoxides, polyamide-epichlorohydrin resins, polyamide-polyamine
  • Agents that reduce the adhesion of the casing to the sausage meat are, in particular, diketenes with long, fat-like substituents (especially those with straight-chain (C 8 -C 18 ) alkyl groups), chromium fatty acid complexes, waxes (e.g. those based on ethylene / acrylic acid copolymers ), crosslinkable silicones,
  • Latices based on polystyrene, copolymers with styrene units e.g. styrene /
  • Butadiene copolymers polystyrene derivatives (such as carboxylated polystyrene), alginic acid and alginates, cellulose ethers (such as methyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose or carboxymethyl cellulose) or
  • Epoxidized oils in particular epoxidized linseed or soybean oil, are also suitable as adhesion-reducing agents.
  • polymers which have monomer units with acid chloride or anhydride groups include, for example, copolymers of maleic anhydride, acrylic acid and styrene or poly (meth) acryloyl chloride. Liability-increasing and liability-reducing agents can also be combined.
  • the amount of liability control agents to be applied depends on their chemical constitution and their distribution on or in the fiber reinforcement. In general, it is preferred not to distribute the agents evenly in the fiber reinforcement, but rather to keep them as far as possible on their surface.
  • the order of magnitude of the adhesion-control agent (s) is approximately 50 to 3,000 mg / m 2 , preferably 75 to 2,000 mg / m 2 , particularly preferably 80 to 1,200 mg / m 2 , very particularly preferably 100 to 1,000 mg / m 2 .
  • Adhesion-controlling agents are expediently in the form of an aqueous solution
  • Dispersion or emulsion applied. After application, the material should therefore still be dried, for example with hot air, radiant heat or with the help of heated rollers or cylinders.
  • the sheet-like fiber reinforcement can also be combined with other ones
  • Components are treated. These include, for example, liquid smoke, flavors, bioeids, latices, inorganic and / or organic particles (for example color pigment particles), polyamide-based resins, oils or waxes.
  • This embodiment is particularly for absorbent fiber reinforcements, e.g. those made of natural fibers make sense.
  • the sheet-like fiber reinforcement pretreated in this way is, if necessary, cut into strips of suitable width, which are made into a tube (for example with the aid of a so-called shaped shoulder).
  • the tubes made of the fiber material are then in themselves in an intestinal spinning machine known way applied from the outside with viscose solution and regenerated the cellulose from the viscose. The process is controlled so that no or at least no continuous layer of regenerated cellulose is formed on the inside of the tubes.
  • the impregnation or coating on the fiber reinforcement can then later control the adhesion of the casing to the food.
  • the viscose solution used for coating can additionally contain polymeric additives, for example alginates, polyvinylpyrrolidone, copolymers of N-vinylpyrrolidone and dimethylaminomethyl methacrylate or copolymers of
  • the proportion of polymeric additives can range up to about 40% by weight, based on the weight of the cellulose in the viscose solution. This allows the properties to be modified even further.
  • the impregnated and / or coated sheet-like fiber reinforcement can also be coated as a flat product with viscose. After the cellulose has been regenerated, the coated material is then cut into strips of suitable width, the strips are formed into a tube with overlapping edges and the edges are then permanently fixed. The fixation can be done for example by gluing or sewing. Here too, care must be taken to ensure that the side of the flat product which later faces the food has no or at least no continuous layer of regenerated cellulose.
  • the fiber intestine based on cellulose hydrate can also be provided on the outside with a continuous coating that has barrier properties for water vapor and / or oxygen.
  • a good water vapor and oxygen barrier can be achieved, for example, with a polyvinylidene chloride (PVDC) outer coating.
  • PVDC polyvinylidene chloride
  • the foodstuff according to the invention itself can also be treated with liquid smoke, flavors, biocidal substances or similar conventional additives.
  • the food casings according to the invention can preferably be used as artificial sausage casings, for example in the production of raw, scalded or cooked sausage. They can also be used in the production of cheese.
  • All casings are coated on one side with viscose using the viscose process after the fibrous or textile fabrics have been formed into a tube.
  • the cellulose is regenerated with dilute sulfuric acid.
  • the gel tube is then neutralized, provided with a plasticizer and dried.
  • the modified sides of the fibrous or textile fabrics are on the inside of the food casings formed into tubes.
  • the sheet-like fiber reinforcements are used to cut sheets with a paper width of 202 mm, which are suitable for the production of a sausage casing with a caliber of 60.
  • a casing which had a wet-strength fleece as reinforcement, in which the fibers consisted of 96% cellulose and 4% polyethylene terephthalate fibers and had a basis weight of 19 g / m 2 .
  • the fleece was made wet-resistant by impregnation with a common resin binder on polyamide /
  • a wet-strength fleece with a proportion of 96% cellulose and 4% polyethylene terephthalate fibers and a basis weight of 19 g / m 2 was after a Drying coated with a commercially available polyvinylamine (Luresin PR 8086, BASF AG) on one side by roller application and then dried again.
  • the wet strength of the fleece was produced by a common resin binder based on polyamide / polyamine / epichlorohydrin, which was mixed with 2% of the fleece.
  • the coating solution contained about 25% polyvinylamine.
  • the application amount of the polyvinylamine was 1,000 mg / m 2 .
  • a fiber-reinforced cellulose-based food casing with a basis weight of 74 g / m 2 was thus produced using the viscose process.
  • a nonwoven made of 96% cellulose and 4% polyethylene terephthalate fibers was treated with a dilute viscose solution.
  • the cellulose was then regenerated from the viscose with dilute sulfuric acid.
  • the regenerated cellulose made the fleece wet-proof.
  • the regenerated cellulose had a share of about 5%, based on the dry weight of the wet-strength fleece, which was about 19 g / m 2 .
  • a commercially available polyvinylamine (Luresin PR 8086, BASF AG) was then applied to one side of the nonwoven by roller application. The product treated in this way was then dried again.
  • the coating solution contained approximately 25% polyvinylamine.
  • the application amount of the polyvinylamine was 1,000 mg / m 2 .
  • a fiber-reinforced cellulose-based food casing with a weight per unit area of 75 g / m 2 was thus produced using the viscose process.
  • a wet-strength fleece with a proportion of 96% cellulose and 4% polyethylene terephthalate fibers and a weight per unit area of 19 g / m 2 was applied on one side by roller application coated and then dried again.
  • the wet strength of the fleece was achieved by treating the wet-laid fleece with viscose and regeneration of the cellulose by dilute sulfuric acid solution.
  • the order quantity of the chromium fatty acid complex was 800 mg / m 2 .
  • a fiber-reinforced cellulose-based food casing with a basis weight of 74 g / m 2 was thus produced using the viscose process.
  • a web-shaped fabric of 202 mm width, consisting of 100% cellulose, with a basis weight of 60 g / m 2 was used for the production of a fabric-reinforced tubular food casing based on cellulose.
  • the viscose process was used here.
  • the weight per unit area of the finished casing was 120 g / m 2 .
  • a polyvinylamine coating (Luresin PR 8086, BASF AG) was applied on one side by roller application.
  • the fabric was dried and used to make a cellulose-based tubular tubular food casing.
  • the amount of polyvinylamine applied was 1,000 mg / m 2.
  • the viscose process was used here.
  • the weight per unit area of the finished casing was 120 g / m 2 .
  • a chromium fatty acid coating ( ⁇ Montacell CF) was applied on one side by roller application.
  • Fabric was dried and used to make a cellulose-based tubular tubular food casing.
  • the amount of chromium fatty acid complex applied was 800 mg / m 2.
  • the viscose process was used here.
  • the weight per unit area of the finished casing was approximately 120 g / m 2 .
  • the food casings according to the invention were tested in comparison to a food casing reinforced with conventional fibrous or textile fabrics.
  • a grading scale was defined that characterizes the adhesion of the casing to the meat.
  • Table 1 shows an overview of the grading scale with the associated liability properties.
  • a sausage meat made from 70% pork shoulder meat and 30% bacon (pork back bacon) stored at -30 ° C was used, as well as 24 g / kg nitrite curing salt.
  • the water activity (a w value) was 0.98-0.99.
  • the pH was 6.0 (measured 24 hours after slaughter).
  • the components were crushed at -5 to 0 ° C (pH up to 5.9; a W value 0.96 to 0.97).
  • the casing was filled at a temperature of -3 to 1 ° C.
  • the ripening took place after an equalization period of about 6 h at a room temperature of 20-25 ° C and a relative humidity below 60% in three sections in a dark room. The ripening sections are shown in Table 2.
  • Table 2 Table 2
  • the filled casing was heated at 75 ° C.
  • the heating time was calculated in minutes according to the one used
  • Caliber + 10% extra time This meant e.g. B. for a food casing with the caliber 60 that the cooked sausage was cooked for 60 min + 6 min.
  • the peeling results in Table 3 show very clearly the influence of the fleece coating on the adhesion of the food casing to the filling material.
  • the polyvinylamine coating favors and the chrome fatty acid coating reduces the adhesion of the casing to the sausage meat in comparison to the examples which were not produced with modified nonwovens.
  • the additional coating can produce strong, stable adhesion that lasts for several weeks.
  • the casing according to the comparative example had a medium level of adhesion after 10 days, but this dropped drastically after 6 weeks of ripening.
  • the examples with meat sausage also showed that the fleece coating determines the adhesion of the casing to the meat (Table 4). Table 3

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Food Science & Technology (AREA)
  • Processing Of Meat And Fish (AREA)

Abstract

L'invention concerne une enveloppe tubulaire pour produits alimentaires, à base de cellulose régénérée ou précipitée, avec un renforcement par fibres. Ledit renforcement par fibres est imprégné et/ou muni d'au moins un agent régulant son adhérence à un produit alimentaire se trouvant dans l'enveloppe.
EP05745590A 2004-05-10 2005-05-06 Enveloppe pour produits alimentaires, a base de cellulose, a renforcement par materiau fibreux impregne Withdrawn EP1746896A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004022974A DE102004022974A1 (de) 2004-05-10 2004-05-10 Nahrungsmittelhülle auf Cellulosebasis mit imprägnierter Fasermaterialverstärkung
PCT/EP2005/004918 WO2005110102A1 (fr) 2004-05-10 2005-05-06 Enveloppe pour produits alimentaires, a base de cellulose, a renforcement par materiau fibreux impregne

Publications (1)

Publication Number Publication Date
EP1746896A1 true EP1746896A1 (fr) 2007-01-31

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EP05745590A Withdrawn EP1746896A1 (fr) 2004-05-10 2005-05-06 Enveloppe pour produits alimentaires, a base de cellulose, a renforcement par materiau fibreux impregne

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Country Link
US (1) US20080020105A1 (fr)
EP (1) EP1746896A1 (fr)
DE (1) DE102004022974A1 (fr)
WO (1) WO2005110102A1 (fr)

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