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EP0925397B1 - Non-tisse en fibres lie par cellulose et son procede de production - Google Patents

Non-tisse en fibres lie par cellulose et son procede de production Download PDF

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Publication number
EP0925397B1
EP0925397B1 EP97942011A EP97942011A EP0925397B1 EP 0925397 B1 EP0925397 B1 EP 0925397B1 EP 97942011 A EP97942011 A EP 97942011A EP 97942011 A EP97942011 A EP 97942011A EP 0925397 B1 EP0925397 B1 EP 0925397B1
Authority
EP
European Patent Office
Prior art keywords
cellulose
nmmo
nonwoven
fiber fabric
solution
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.)
Expired - Lifetime
Application number
EP97942011A
Other languages
German (de)
English (en)
Other versions
EP0925397A1 (fr
Inventor
Klaus Dieter Hammer
Gerhard Grolig
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 Nalo GmbH
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 Nalo GmbH filed Critical Kalle Nalo GmbH
Publication of EP0925397A1 publication Critical patent/EP0925397A1/fr
Application granted granted Critical
Publication of EP0925397B1 publication Critical patent/EP0925397B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/25—Cellulose
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/47—Condensation polymers of aldehydes or ketones
    • D21H17/49—Condensation polymers of aldehydes or ketones with compounds containing hydrogen bound to nitrogen
    • D21H17/50—Acyclic compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/47—Condensation polymers of aldehydes or ketones
    • D21H17/49—Condensation polymers of aldehydes or ketones with compounds containing hydrogen bound to nitrogen
    • D21H17/51—Triazines, e.g. melamine
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/08—Filter paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10—Packing paper
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2033—Coating or impregnation formed in situ [e.g., by interfacial condensation, coagulation, precipitation, etc.]
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/696—Including strand or fiber material which is stated to have specific attributes [e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous compositions, water solubility, heat shrinkability, etc.]

Definitions

  • the invention relates to a nonwoven bonded with cellulose and a Process for its production. It also concerns the use of this Nonwoven fabric for the production of food packaging, in particular of tea bags or sausage casings.
  • Fiber-reinforced, seamless cellulose casings are usually made after Viscose process manufactured. This creates a tube Nonwoven, for example made of hemp fiber paper, inside and / or outside with coated with an alkaline viscose solution. The inside, external or double-viscous material is then mixed with an acidic coagulation liquid treated, the cellulose xanthate precipitates and cellulose hydrate regenerates. So much viscose solution is generally applied that the nonwoven fabric on one or both sides completely with a layer regenerated cellulose is covered. Fiber-reinforced cellulose casings are made in widely used as sausage casings.
  • the nonwoven fabric is made in the usual way from cellulose fibers.
  • increasing its strength will bind it.
  • So in the US-A 3 135 613 discloses the manufacture of wet strength hemp fiber paper. The increased strength is achieved by treating with a dilute alkaline viscose solution, drying and regenerating the cellulose with the help of dilute sulfuric acid. The paper is then washed until it is free is of acid and finally dried. The cover used as a binding Regenerated cellulose is so thin that the porous structure of the paper preserved.
  • nonwovens were also used are fixed solely with synthetic resins.
  • these are Cellulose fibers with an alkali-curable resin, for example one Polyethyleneimine resin or a polyamide crosslinked with epichlorohydrin, bound.
  • an alkali-curable resin for example one Polyethyleneimine resin or a polyamide crosslinked with epichlorohydrin, bound.
  • US-A 3 484 256 a mixture of a cationic, thermosetting resin and a polyacrylamide used. With cellulose casings reinforced with this material do not guarantee the burst resistance, which is required for certain types of sausage.
  • Resin bonds are generally not sufficiently thermostable.
  • the viscose solution cannot penetrate resin-bonded nonwovens sufficiently.
  • the resin causes the regenerated cellulose to be insufficient adheres to the fibers.
  • the object of the invention is to provide a nonwoven fabric in an environmentally friendly manner Provide that is wet-strength, alkali and hydrolysis-proof from the viscose is optimally penetrated and firmly with regenerated cellulose hydrate connects.
  • the viscosities produced therefrom tubular food casings optimal strength, ductility and swellability and good shrinkage behavior.
  • the nonwoven fabric can - as usual - be made by using a Sieve passes through a fiber pulp and the resultant The fiber fleece then dries partially or completely.
  • the pulp preferably contains about 0.1 to 2% by weight of cellulose fibers, with hemp fibers are preferred.
  • Other ingredients can be added to the pulp be, e.g. Resins or glues.
  • the nonwoven can also be impregnated or are coated, preferably also with resins or glues.
  • the pulp is one Polyamine-polyamide-epichlorohydrin resin (also referred to as polyamidoamine-epichlorohydrin resin), a urea-formaldehyde resin, a melamine-formaldehyde resin or a urea-melamine-formaldehyde resin is added.
  • the amount this resin is preferably 0.5 to 2 wt .-%, based on the Total weight of the pulp.
  • the resin migrates to the crossing points when it dries of the fibers and reacts with the fibers when curing also with itself. This further increases stability.
  • the nonwoven fabric according to the invention contains about 0.5 to 9% by weight, preferably 1 to 3% by weight, particularly preferably 1.5 to 2% by weight, of cellulose, based on its total weight. It can already be used as such, for example to make tea bags from it. It then preferably has a weight of about 8 to 20 g / m 2 . It is particularly advantageous, however, to viscose and process it into fiber-reinforced food casings. It then preferably has a weight of 12 to 30 g / m 2 , particularly preferably 15 to 28 g / m 2 .
  • the invention thus also relates to a fiber-reinforced food casing or packaging film produced by the viscose process is characterized in that the fiber reinforcement consists of the nonwoven fabric according to the invention. It is mainly used as a sausage casing.
  • Treatment with the cellulose / NMMO / water solution is preferably done by immersing in an appropriate bath.
  • the cellulose / NMMO / water solution preferably contains about 0.5 to 2.0 % By weight of cellulose, based on their total weight. That as a solvent NMMO / water mixture used preferably consists of 85 to 90% by weight made of NMMO and 15 to 10% by weight water.
  • a solvent NMMO / water mixture used preferably consists of 85 to 90% by weight made of NMMO and 15 to 10% by weight water.
  • the production of Cellulose / NMMO / water solutions is also in DE-A 196 07 953 described.
  • the NMMO aqueous solution used for precipitation preferably contains about 5 up to 15% by weight of NMMO, particularly preferably about 10% by weight of NMMO, based on their total weight.
  • the nonwoven fabric according to the invention optimally fulfills the tasks set Wise. In particular, it shows a higher wet and dry strength. It also has the desired porous surface structure.
  • the after The method according to the invention is applied cellulose from NMMO solution more compact, dense and crystalline (55 to 65% crystalline fraction) than that after applied to the viscose process (34 to 42% crystalline fraction). she will therefore in a subsequent coating of viscose solution or others alkaline solutions attacked significantly less. That represents another Advantage of the nonwoven fabric according to the invention.
  • the fiber-reinforced cellulose film is dried. That is in the end product Nonwoven covered on one or both sides with a cellulose layer, so that whose surface structure is no longer visible.
  • tubular food casing according to the invention as a sausage casing can be used, it can still be on the inside and / or outside provided with the usual coatings or impregnations become.
  • a barrier layer can be inside and / or outside against atmospheric oxygen or water vapor.
  • the sausage meat can also have an inner coating to improve the Peeling behavior or to improve the adhesion between meat and casing Bring advantages.
  • a fungicide is indicated Coating on the outside.
  • color pigments can also be found in the cellulose layer, e.g. Soot or TiO2.
  • the tubular sausage casing can be advantageous in shape of "caterpillars" (gathered sections, one end of which has already been tied off can be) or laid flat and rolled up as "roll goods" in the trade to be brought.
  • Hemp fibers were deposited on a sloping sieve to a coarse-structured fiber paper of 21 g / m 2 using a customary process from a paper pulp in which the proportion of cellulose fibers is 0.1 to 0.2%.
  • the paper was transported over large diameter heated rollers and dried.
  • the dry paper web was then passed through a runner containing a 0.8% cellulose solution in an 87.7% aqueous NMMO solution at a temperature of 95 ° C.
  • the paper was gently squeezed off and passed through a second runner containing a 15% NMMO solution at a temperature of 20 ° C. In a third runner with pure water, the remaining NMMO was extracted. Then it was dried again and wound up.
  • the cellulose content of the nonwoven fabric was approximately 1.2%. When wet, it had a tensile strength (average of the longitudinal and transverse tensile strength) of 6.5 to 7 N / mm 2 and an elongation at break (average of the longitudinal and transverse tensile elongation) of 7 to 8%, based on the initial length. When treated in 6% sodium hydroxide solution for 10 minutes, the nonwoven lost only 15 to 20% of its strength, the elongation at break remained unchanged. When the fiber fleece was impregnated with an alkaline viscose solution, the viscose penetrated perfectly, and the precipitated cellulose hydrate adheres very well to the fibers.
  • a hemp fiber paper with a basis weight of 25.4 g / m 2 was produced. It was then passed through a 1.2% cellulose solution in 87.7% aqueous NMMO at 90 ° C., then precipitated in a 12% NMMO solution, washed in a further water bucket, then dried and wound up. The paper showed a tensile strength of 9 N / mm 2 and an elongation at break of 7% when wet.
  • a hose of 120 mm caliber viscose on the outside showed the usual precipitation and regeneration a burst pressure of 64 kPa or 18.5% above the nominal value, the static elongation was 135 mm at 21 kPa (Target range: 133 to 137 mm). It was easy to process.

Landscapes

  • Processing Of Meat And Fish (AREA)
  • Nonwoven Fabrics (AREA)
  • Paper (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Claims (10)

  1. Tissu non tissé en fibres dont les fibres ont été liées par :
    a) traitement avec une solution de cellulose dans un mélange d'eau et de N-méthyl-morpholine-N-oxyde (NMMO) ;
    b) précipitation de la cellulose à l'aide d'une solution aqueuse de NMMO ;
    c) lavage, afin d'éliminer la NMMO, et éventuellement
    d) séchage.
  2. Tissu non tissé en fibres selon la revendication 1, caractérisé en ce que la partie de cellulose représente 0,5 à 5, de préférence 1 à 3, plus particulièrement 1,5 à 2% en poids tel que calculé sur la base du poids total.
  3. Tissu non tissé en fibres selon la revendication 1 ou la revendication 2, caractérisé en ce que les fibres sont des fibres de chanvre.
  4. Procédé pour la préparation d'un tissu non tissé en fibres liées comprenant les étapes suivantes, dans l'ordre indiqué, lesquelles consistent à :
    préparer une suspension contenant des fibres de cellulose ;
    former un tissu non tissé en fibres à partir de cette suspension ;
    sécher partiellement ou totalement lesdites fibres ; ainsi que
    lier entre elles lesdites fibres,
    ledit procédé étant caractérisé en ce que l'on applique une solution de cellulose dans un mélange d'eau/NMMO sur les fibres de façon à les lier, la cellulose étant précipitée à l'aide d'une solution aqueuse de NMMO, les fibres étant libérées de toute la NMMO de façon pratique par lavage, puis séchées.
  5. Procédé selon la revendication 4, caractérisé en ce que la suspension contient en outre au moins une résine choisie parmi une résine polyamine-polyamide-épichlorhydrine, une résine urée-formaldéhyde et une résine mélamine-formaldéhyde.
  6. Procédé selon la revendication 4, caractérisé en ce que l'application de la solution est réalisée par immersion des fibres dans un bain contenant une solution de cellulose/NMMO/eau.
  7. Utilisation d'un tissu non tissé en fibres selon l'une des revendications 1 à 3 pour la préparation de sachets de thé ou en tant de renforcement pour feuilles d'emballage plus particulièrement dans le cas des enveloppes alimentaires en forme de boyau, lesquelles sont préparées par le procédé à la viscose.
  8. Enveloppe alimentaire ou feuille d'emballage renforcée par des fibres préparée selon la procédé à la viscose, caractérisée en ce que le renforcement par les fibres est réalisé par utilisation d'un tissu non tissé en fibres selon l'une ou plusieurs des revendications 1 à 3.
  9. Procédé pour la préparation d'enveloppe alimentaire ou de feuille d'emballage selon la revendication 8, dans lequel on traite par le procédé à la viscose une ou les deux faces d'un tissu non tissé en fibres, ledit procédé étant caractérisé en ce que le tissu non tissé en fibres est tel que décrit à l'une des revendications 1 à 3.
  10. Procédé selon la revendication 9, caractérisé en ce que le tissu non tissé en fibres est ployé en forme de boyau avant traitement par le procédé à la viscose.
EP97942011A 1996-09-16 1997-09-10 Non-tisse en fibres lie par cellulose et son procede de production Expired - Lifetime EP0925397B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19637621A DE19637621A1 (de) 1996-09-16 1996-09-16 Cellulose-gebundenes Faservlies und Verfahren zu dessen Herstellung
DE19637621 1996-10-18
PCT/EP1997/004941 WO1998011288A1 (fr) 1996-09-16 1997-09-10 Non-tisse en fibres lie par cellulose et son procede de production

Publications (2)

Publication Number Publication Date
EP0925397A1 EP0925397A1 (fr) 1999-06-30
EP0925397B1 true EP0925397B1 (fr) 2001-03-28

Family

ID=7805729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97942011A Expired - Lifetime EP0925397B1 (fr) 1996-09-16 1997-09-10 Non-tisse en fibres lie par cellulose et son procede de production

Country Status (5)

Country Link
US (1) US6048917A (fr)
EP (1) EP0925397B1 (fr)
JP (1) JP2001500196A (fr)
DE (2) DE19637621A1 (fr)
WO (1) WO1998011288A1 (fr)

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Publication number Priority date Publication date Assignee Title
AT405406B (de) * 1997-10-23 1999-08-25 Chemiefaser Lenzing Ag Verfahren zum verbinden von gegenständen, die eine oberfläche aus einem cellulosischen material aufweisen
DE10129539A1 (de) * 2001-06-22 2003-01-09 Kalle Gmbh & Co Kg Cellulosehaltige, eßbare Folie
DE10248332A1 (de) * 2002-10-17 2004-04-29 Kalle Gmbh & Co. Kg Nahtloser Folienschlauch, Verfahren und Vorrichtung zur Herstellung eines nahtlosen Folienschlauches
DE102004022974A1 (de) * 2004-05-10 2005-12-08 Kalle Gmbh Nahrungsmittelhülle auf Cellulosebasis mit imprägnierter Fasermaterialverstärkung
DE102004051298A1 (de) 2004-10-20 2006-04-27 Kalle Gmbh Faservlies mit verbesserter Naß- und Alkalifestigkeit und damit hergestellte Nahrungsmittelhülle auf Basis von Cellulosehydrat
DE102004053412A1 (de) * 2004-11-05 2006-05-11 Kalle Gmbh Faservlies und damit hergestellte Nahrungsmittelhülle auf Basis von Cellulosehydrat
WO2007052284A2 (fr) * 2005-07-13 2007-05-10 Lodha Preeti Consolidation de fibres non-tissees
JP4980789B2 (ja) * 2006-06-05 2012-07-18 レンゴー株式会社 全熱交換器用シート
US9210943B2 (en) * 2010-08-31 2015-12-15 Viskoteepak Belgium Nv Food casings with modified adhesion and release properties and methods of manufacture
WO2012044940A2 (fr) 2010-10-01 2012-04-05 Sara Lee Corporation Systèmes et procédés d'apport d'additifs dans un produit alimentaire
US9380804B2 (en) 2012-07-12 2016-07-05 The Hillshire Brands Company Systems and methods for food product extrusion
CN106103820A (zh) * 2014-03-11 2016-11-09 智能聚合物有限公司 根据直接溶解法制得的难燃纤维素成型体
US12338578B2 (en) 2021-05-28 2025-06-24 Kanbol, Inc. System and method for refining agricultural fibers to a pulp specification
US12195919B2 (en) 2021-11-18 2025-01-14 Kanbol, Inc. Multi-step low temperature and low pressure process for agricultural feedstock stock preparation with hemicellulose and lignin recovery

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Publication number Priority date Publication date Assignee Title
US3135613A (en) * 1959-08-17 1964-06-02 Union Carbide Corp Impregnated paper web and method of making sausage casings therefrom
GB1091105A (en) * 1965-03-30 1967-11-15 Dexter Corp Base web for casing and method of making same
US3484256A (en) * 1967-01-31 1969-12-16 Union Carbide Corp Fibrous food casings and method of producing same
US4246221A (en) * 1979-03-02 1981-01-20 Akzona Incorporated Process for shaped cellulose article prepared from a solution containing cellulose dissolved in a tertiary amine N-oxide solvent
GB2146673A (en) * 1983-09-17 1985-04-24 Fordath Ltd Method of treating a web
US4774283A (en) * 1987-03-02 1988-09-27 Air Products And Chemicals, Inc. Nonwoven binders of vinyl acetate/ethylene/self-crosslinking monomers/acrylamide copolymers having improved blocking resistance
DE3707691A1 (de) * 1987-03-11 1988-09-22 Basf Ag Mit einer gehaerteten harzmischung gebundene mineral- und textil-vliese
CA2073693A1 (fr) * 1990-11-14 1992-05-15 David B. Farmer Materiaux fibreux non tisses
JP3445865B2 (ja) * 1995-04-06 2003-09-08 花王株式会社 セルロース系繊維改質法

Also Published As

Publication number Publication date
EP0925397A1 (fr) 1999-06-30
DE59703243D1 (de) 2001-05-03
JP2001500196A (ja) 2001-01-09
US6048917A (en) 2000-04-11
DE19637621A1 (de) 1998-03-19
WO1998011288A1 (fr) 1998-03-19

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