EP2520710B1 - Seideneffektpapiermaterial und entsprechendes Herstellungsverfahren - Google Patents

Seideneffektpapiermaterial und entsprechendes Herstellungsverfahren Download PDF

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Publication number
EP2520710B1
EP2520710B1 EP12167033.5A EP12167033A EP2520710B1 EP 2520710 B1 EP2520710 B1 EP 2520710B1 EP 12167033 A EP12167033 A EP 12167033A EP 2520710 B1 EP2520710 B1 EP 2520710B1
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EP
European Patent Office
Prior art keywords
paper material
fibres
approximately
silk
substrate
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.)
Active
Application number
EP12167033.5A
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English (en)
French (fr)
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EP2520710A1 (de
Inventor
Luca Monacelli
Ferruccio Gilberti
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Gruppo Cordenons SpA
Original Assignee
Gruppo Cordenons SpA
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Publication of EP2520710A1 publication Critical patent/EP2520710A1/de
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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
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/28—Organic non-cellulose fibres from natural polymers
    • D21H13/34—Protein fibres
    • 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
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/02—Synthetic cellulose fibres
    • D21H13/08—Synthetic cellulose fibres from regenerated 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
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/26—Polyamides; Polyimides
    • 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
    • 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
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • 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
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
    • 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
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/18—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only forming new compounds in situ, e.g. within the pulp or paper, by chemical reaction with itself, or other added substances, e.g. by grafting on the fibres
    • 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
    • D21H17/28—Starch
    • 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
    • D21H17/52—Epoxy resins
    • 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
    • D21H17/62—Rosin; Derivatives thereof
    • 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
    • D21H17/63—Inorganic compounds
    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/62—Macromolecular organic compounds or oligomers thereof obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds

Definitions

  • the present invention relates to a silk-effect paper material (paper/cardboard) and to the corresponding manufacturing method. More precisely, the paper material of the invention, thanks to an appropriately devised pulp and to a specific surface treatment, loses the typical feel of paper materials and is characterized by a feel similar to that of silk.
  • US 5 334 286 A and WO 00/22231 A1 disclose a tissue-type paper material, not suitable for printing with high quality.
  • An aim of the present invention is to provide a paper material that will present a feel different from that of traditional paper materials and will at the same time enable a high printing quality.
  • the present invention hence regards a paper material and the corresponding manufacturing method as defined in the annexed Claims 1 and 8, respectively.
  • the invention hence provides a silk-effect paper material (paper/cardboard), which, thanks to an appropriately devised pulp and to a specific surface treatment, loses the typical feel of paper materials and is characterized by a feel similar to that of silk.
  • the paper material of the invention moreover ensures a high printing quality and enables particular graphic effects to be achieved, which are difficult to obtain with traditional coated papers.
  • the paper material of the invention comprises a substrate that is formed by a mixture of cellulose fibres and fibres of natural silk and/or synthetic silk (polyamide) and contains at least one polymeric substance, capable of bestowing (dry and wet) strength on the mixture of fibres, and an inorganic filler, capable of bestowing softness on the material maintaining good characteristics of machinability.
  • the substrate has at least one surface (face) treated with at least one surface adhesive and one softening agent so that the paper material, owing to the combined effect of the composition of the substrate and of the surface treatment, presents a feel similar to that of silk.
  • both of the faces of the substrate can be treated in the same way.
  • the mixture of fibres can contain fibres with a base of natural and/or synthetic silk in a variable amount, preferably up to approximately 10% of the total of the fibres and more preferably in an amount of less than approximately 3%.
  • the polymeric substance included in the substrate comprises one or more colophony-based and/or epichlorohydrin-based resins, and/or modified starches
  • the inorganic filler is a mineral filler comprising one or more substances selected in the group consisting of carbonates, kaolins, talc, and mixtures thereof.
  • the surface adhesive is, for example, an adhesive with a base of starch and/or polyvinyl alcohol and/or acrylic, polyurethane and/or styrene-butadiene polymers.
  • the softening agent comprises, for example, sorbitol and/or glycerine.
  • the paper material according to the invention is provided with a glossy coating, applied on the treated surface (clearly, the paper material can have both of the surfaces treated and provided with a glossy coating).
  • the glossy coating is formed by one or more binding polymers (for example polyurethane-based and/or silicone-based polymers) and/or waxes, mixed with pigments, for example, pigments with a lamellar or flat structure, such as, for example, precipitated calcium carbonate (PCC), calcined and/or lamellar kaolins, in combination with oriented and iridescent metal pigments with lamellar structure.
  • binding polymers for example polyurethane-based and/or silicone-based polymers
  • waxes mixed with pigments, for example, pigments with a lamellar or flat structure, such as, for example, precipitated calcium carbonate (PCC), calcined and/or lamellar kaolins, in combination with oriented and iridescent metal pigments with lamellar structure.
  • PCC precipitated calcium carbonate
  • the amount of polymer per face is preferably comprised between 5% and 100% with respect to the pigments; the substance of the paper material is comprised between approximately 90 g/m 2 and approximately 350 g/m 2 ; the amount of glossy coating spread on each face is comprised between approximately 5 g/m 2 and approximately 20 g/m 2 .
  • the glossy coating may be coloured and/or spread on a coloured substrate; colours in paste form and organic or inorganic pigments are preferably used.
  • the substrate is provided, with a technique of formation of paper that is substantially known, for example, on a paper machine.
  • an aqueous pulp is provided of cellulose fibres and of fibres with a base of natural and/or synthetic silk, said pulp containing the polymeric substance (colophony-based and/or epichlorohydrin-based resins, and/or modified starches) and the inorganic filler (carbonates, kaolins, talc, etc.).
  • polymeric substance colophony-based and/or epichlorohydrin-based resins, and/or modified starches
  • the inorganic filler carbonates, kaolins, talc, etc.
  • aqueous solution of surface adhesive for example, an aqueous solution containing 5 to 10 wt% of starch, or acrylic adhesive or other adhesives indicated above
  • softening agent for example, sorbitol and/or glycerine
  • the method further comprises, preferably after the surface treatment with adhesive and softening agent a step of smoothing of the substrate, where the substrate is smoothed, in particular up to Bendsten ISO 2494 roughness values of less than approximately 50 ml/min and preferably of less than approximately 30 ml/min and indicatively around 20 ml/min, followed by a step of application of the glossy coating described previously.
  • application of the glossy coating is performed with an air-blade or smoothing-blade coating machine and is followed by a step of drying of the coating, conducted in an infrared oven and/or hot-air oven at a temperature of between approximately 100°C and approximately 180°C and with an oven time of between 0.5 and 4 minutes.
  • the method comprises a step of mechanical treatment of the surface provided with the coating, in particular a smoothing step and/or an embossing step.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)

Claims (18)

  1. Seideneffektpapiermaterial, umfassend ein Substrat, gebildet aus einer Mischung aus Zellstofffasern und Faser mit einer Basis aus natürlicher und/oder synthetischer Seide, und enthaltend mindestens einen Polymerstoff, geeignet, um die Fasermischung zu verstärken, sowie einen anorganischen Füllstoff, und aufweisend mindestens eine Oberfläche, behandelt mit mindestens einem Oberflächenkleber und einem Weichmacher, sodass das Papiermaterial eine seidenähnliche Haptik besitzt, wobei die Fasermischung bis zu 10 % Fasern mit einer Basis aus natürlicher und/oder synthetischer Seide an der Gesamtmenge der Fasern enthält, wobei die behandelte Oberfläche mit einer Glanzbeschichtung versehen ist, gebildet aus einem oder mehreren bindenden Polymeren und/oder Wachsen, vermischt mit Pigmenten.
  2. Papiermaterial nach Anspruch 1, wobei der Polymerstoff, der im Substrat enthalten ist, ein oder mehrere kolophoniumbasierte und/oder epichlorhydrinbasierte Harze und/oder modifizierte Stärken umfasst.
  3. Papiermaterial nach einem der vorhergehenden Ansprüche, wobei es sich beim anorganischen Füllstoff um einen Mineralfüllstoff handelt, der einen oder mehrere Stoffe umfasst, ausgewählt aus der Gruppe, bestehend aus Carbonaten, Kaolinen, Talk und Mischungen davon.
  4. Papiermaterial nach einem der vorhergehenden Ansprüche, wobei es sich beim Oberflächenkleber um einen Kleber mit einer Stärke- und/oder Polyvinylalkohol- und/oder Acryl-, Polyurethan- und/oder Styrol-Butadien-Polymer-Basis handelt.
  5. Papiermaterial nach einem der vorhergehenden Ansprüche, wobei der Weichmacher Sorbit und/oder Glycerin umfasst.
  6. Papiermaterial nach einem der vorhergehenden Ansprüche, wobei die Glanzbeschichtung Pigmente mit einer lamellaren oder flachen Struktur umfasst wie z. B. gefälltes Calciumcarbonat (PCC), kalzinierte und/oder lamellare Kaoline, in Kombination mit ausgerichteten und/oder irisierenden Metallpigmenten mit lamellarer Struktur.
  7. Papiermaterial nach einem der vorhergehenden Ansprüche, wobei die bindenden Polymere polyurethanbasierte und/oder silikonbasierte Polymere umfassen.
  8. Verfahren zur Herstellung des Papiermaterials nach einem der vorhergehenden Ansprüche, umfassend folgende Schritte:
    (a) Vorbereiten eines wässrigen Breis aus Zellstofffasern und Fasern mit einer Basis aus natürlicher und/oder synthetischer Seide, wobei dieser Brei mindestens einen Polymerstoff enthält, geeignet, um die Fasermischung zu verstärken, sowie einen anorganischen Füllstoff;
    (b) Beseitigen des Wassers aus dem Brei, um ein Substrat des Papiermaterials zu bilden, und
    (c) Behandeln mindestens einer Oberfläche des Substrats mit mindestens einem Oberflächenkleber und einem Weichmacher, sodass dem Papiermaterial eine seidenähnliche Haptik verliehen wird, wobei die Fasermischung Fasern mit einer Basis aus natürlicher und/oder synthetischer Seide in einer Menge bis zu zirka 10 % der gesamten Fasermenge enthält, wobei das Verfahren zudem einen Schritt des Auftragens einer Glanzbeschichtung auf die behandelte Oberfläche umfasst, wobei die Glanzbeschichtung durch ein oder mehrere bindende Polymere und/oder Wachse, vermischt mit Pigmenten, gebildet ist.
  9. Verfahren nach Anspruch 8, wobei der Polymerstoff, der im Substrat enthalten ist, ein oder mehrere kolophoniumbasierte und/oder epichlorhydrinbasierte Harze und/oder modifizierte Stärken umfasst.
  10. Verfahren nach einem der Ansprüche 8 oder 9, wobei es sich beim anorganischen Füllstoff um einen Mineralfüllstoff handelt, der einen oder mehrere Stoffe umfasst, ausgewählt aus der Gruppe, bestehend aus Carbonaten, Kaolinen, Talk und Mischungen davon.
  11. Verfahren nach einem der Ansprüche 8 bis 10, wobei es sich beim Oberflächenkleber um einen Kleber mit einer Stärke- und/oder Polyvinylalkohol- und/oder Acryl-, Polyurethan- und/oder Styrol-Butadien-Polymer-Basis handelt.
  12. Verfahren nach einem der Ansprüche 8 bis 11, wobei der Weichmacher Sorbit und/oder Glycerin umfasst.
  13. Verfahren nach einem der Ansprüche 8 bis 12, umfassend nach der Oberflächenbehandlung mit dem Kleber und dem Weichmacher einen Schritt des Glättens des Substrats, wobei das Substrat bis zu Rauheitswerten nach Bendtsen ISO 2494 von weniger als zirka 50 ml/min geglättet wird, vorzugsweise von weniger als zirka 30 ml/min und als Anhaltswert von rund 20 ml/min.
  14. Verfahren nach einem der Ansprüche 8 bis 13, wobei die Beschichtung Pigmente mit einer lamellaren oder flachen Struktur umfasst wie z. B. gefälltes Calciumcarbonat (PCC), kalzinierte und/oder lamellare Kaoline, in Kombination mit ausgerichteten und irisierenden Metallpigmenten mit lamellarer Struktur.
  15. Verfahren nach einem der Ansprüche 8 bis 14, wobei die bindenden Polymere polyurethanbasierte und/oder silikonbasierte Polymere umfassen.
  16. Verfahren nach einem der Ansprüche 8 bis 15, wobei der Schritt des Auftragens der Glanzbeschichtung mit einer Beschichtungsmaschine mit Luftmesser oder Flächenspachtel durchgeführt wird.
  17. Verfahren nach einem der Ansprüche 8 bis 16, umfassend einen Schritt des Trocknens der Beschichtung, durchgeführt in einem Infrarotofen und/oder einem Heißluftofen bei einer Temperatur zwischen zirka 100 °C und zirka 180 °C und mit einer Trocknungszeit zwischen zirka 0,5 und zirka 4 Minuten.
  18. Verfahren nach einem der Ansprüche 8 bis 17, umfassend einen Schritt der mechanischen Bearbeitung der Oberfläche, versehen mit der Glanzbeschichtung, insbesondere einen Schritt zum Glätten und/oder einen Schritt zum Prägen.
EP12167033.5A 2011-05-06 2012-05-07 Seideneffektpapiermaterial und entsprechendes Herstellungsverfahren Active EP2520710B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000778A ITMI20110778A1 (it) 2011-05-06 2011-05-06 Materiale cartaceo ad effetto-seta e relativo procedimento di fabbricazione

Publications (2)

Publication Number Publication Date
EP2520710A1 EP2520710A1 (de) 2012-11-07
EP2520710B1 true EP2520710B1 (de) 2014-07-30

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EP12167033.5A Active EP2520710B1 (de) 2011-05-06 2012-05-07 Seideneffektpapiermaterial und entsprechendes Herstellungsverfahren

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EP (1) EP2520710B1 (de)
ES (1) ES2519642T3 (de)
IT (1) ITMI20110778A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005523099A (ja) 2002-04-24 2005-08-04 エスケージー イタリア エス．ピー．エー． 歯清掃用デバイス
US9777143B2 (en) 2014-04-11 2017-10-03 Georgia-Pacific Consumer Products Lp Polyvinyl alcohol fibers and films with mineral fillers and small cellulose particles
US9777129B2 (en) 2014-04-11 2017-10-03 Georgia-Pacific Consumer Products Lp Fibers with filler
IT201800002977A1 (it) * 2018-02-23 2019-08-23 Gruppo Cordenons Spa Materiale cartaceo stratificato ad elevata resistenza meccanica e relativo metodo di produzione
WO2023126114A1 (en) * 2021-12-28 2023-07-06 Gruppo Cordenons S.P.A. Paper material with virucidal, biocidal and barrier properties to water, fats and oils
IT202200010112A1 (it) * 2022-05-16 2023-11-16 Gruppo Cordenons Spa Materiale cartaceo in foglio con effetto tattile simile alla plastica e relativo metodo di produzione

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5334286A (en) * 1993-05-13 1994-08-02 The Procter & Gamble Company Tissue paper treated with tri-component biodegradable softener composition
JP3454997B2 (ja) * 1995-12-06 2003-10-06 河野製紙株式会社 保湿性を有する水解紙及びその製造方法
US6017418A (en) * 1996-12-23 2000-01-25 Fort James Corporation Hydrophilic, humectant, soft, pliable, absorbent paper and method for its manufacture
US6607637B1 (en) * 1998-10-15 2003-08-19 The Procter & Gamble Company Soft tissue paper having a softening composition containing bilayer disrupter deposited thereon
EP1659218A1 (de) * 2004-11-19 2006-05-24 The Procter & Gamble Company Tissuepapier mit Seidefasern

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ITMI20110778A1 (it) 2012-11-07
ES2519642T3 (es) 2014-11-07

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