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EP3730695B2 - Papier d'emballage thermoscellable - Google Patents

Papier d'emballage thermoscellable Download PDF

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Publication number
EP3730695B2
EP3730695B2 EP19171364.3A EP19171364A EP3730695B2 EP 3730695 B2 EP3730695 B2 EP 3730695B2 EP 19171364 A EP19171364 A EP 19171364A EP 3730695 B2 EP3730695 B2 EP 3730695B2
Authority
EP
European Patent Office
Prior art keywords
coating
cellulose layer
coated paper
cellulose
paper
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
EP19171364.3A
Other languages
German (de)
English (en)
Other versions
EP3730695A1 (fr
EP3730695B1 (fr
Inventor
Martin Lebsanft
Peter Karl
Reinhold Pointinger
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.)
Neenah Gessner GmbH
Original Assignee
Neenah Gessner 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
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Application filed by Neenah Gessner GmbH filed Critical Neenah Gessner GmbH
Priority to ES19171364T priority Critical patent/ES2924344T5/es
Priority to EP19171364.3A priority patent/EP3730695B2/fr
Priority to PCT/EP2020/061632 priority patent/WO2020216961A1/fr
Priority to EP20722543.4A priority patent/EP3959378B1/fr
Priority to EP24218300.2A priority patent/EP4516999A3/fr
Priority to ES20722543T priority patent/ES3012123T3/es
Publication of EP3730695A1 publication Critical patent/EP3730695A1/fr
Publication of EP3730695B1 publication Critical patent/EP3730695B1/fr
Application granted granted Critical
Publication of EP3730695B2 publication Critical patent/EP3730695B2/fr
Active legal-status Critical Current
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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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10—Packing 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
    • D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/16—Sizing or water-repelling agents

Definitions

  • the present invention relates to a coated paper, and method for the manufacture thereof.
  • plastics became the dominant material for the production of a multitude of products due to their low costs and durability.
  • chemical structure of plastics renders them resistant to many natural processes of degradation and as a result, they are slow to degrade.
  • the high level of plastic production together with the extremely slow degradation of this material have led to a high prominence of plastic pollution in the environment, especially in the oceans.
  • a total single use plastic ban Single use plastics, or disposable plastics, are used only once before they are thrown away. These items include, among others, most packaging materials.
  • plastic films as packaging materials was considered advantageous in that the material can be folded according to the outer shape of the object and this can then be heat-sealed.
  • EP 2 777 934 A1 relates to a paper-based barrier packaging material including a plurality of coating layers formed on a paper base material, wherein the coating layers include a water vapor barrier layer on the paper base material and a gas barrier layer formed on the water vapor barrier layer, and the coating layers are each formed by using as a binder resin a water-soluble polymer or a water suspendable polymer.
  • WO 94/25511 A1 is directed to a composite sheet having a substrate layer, a coating layer and a flexible adherent layer.
  • the substrate layer is preferably a polyester film.
  • the adherent layer may comprise a styrene-butadiene copolymer.
  • the composite sheet exhibits oxygen barrier properties and is suitable for use as a packaging film, particularly when laminated to a heat-sealable layer, preferably of polyethylene.
  • WO 2016/170229 A1 relates to a coated paperboard.
  • the coated paperboard is manufactured by coating a first surface of the paperboard web by applying first, second and third coating compositions.
  • the third coating composition comprises a polymer dispersion for forming at least one heat sealable coating layer on the first surface of the paperboard web.
  • WO 2016/183314 A1 is directed to a coated substrate comprising a cellulose-based substrate and an aqueous-based polymer coating on a surface of the cellulose-based substrate, wherein the aqueous-based polymer can be a styrene-butadiene copolymer.
  • the cellulose layer can comprise sizing agents in an amount of 0.1-5.0 wt.-% and preferably 1.5-2.5 wt.-% based on the total weight of the cellulose layer. If the cellulose layer is also saturated (as explained below), the amount of sizing agent is calculated based on the total weight of the cellulose layer before saturation (and, accordingly, before coating). Any known sizing agent as used in the paper industries can be used in the cellulose layer.
  • the sizing agent is preferably added to the cellulose pulp (i.e. is an internal sizing agent). Examples thereon include alkyl ketene dimers and/or styrene-acrylate-copolymers.
  • the sizing agent(s) will improve the deposition of the coating on the cellulose layer and enhance the effectiveness of the coating in the sense that less coating is needed to achieve the desired effect.
  • the cellulose layer has a basis weight of 20 to 50 g/m 2 and, preferably, 30 to 40 g/m 2 .
  • the cellulose layer has a thickness of 40-70 ⁇ m, preferably 50-60 ⁇ m.
  • the present invention also provides a method for preparing the coated paper as defined above, comprising the steps of providing a cellulose layer, applying an aqueous dispersion of a styrene-butadiene copolymer to at least one surface of the cellulose layer and drying the cellulose layer with the aqueous dispersion of a styrene-butadiene copolymer on its surface to form a coating, and optionally saturating the cellulose layer before forming the coating.
  • the styrene-butadiene copolymer is applied to both sides of the cellulose layer.
  • the cellulose layer is saturated and the coating is formed on only one side of the cellulose layer.
  • the cellulose layer can optionally be saturated before application of the SBR coating.
  • Any resin, commonly used to saturate paper, can be used in the present invention but the saturation is preferably performed with aqueous dispersion based on styrene butadiene latex.
  • the resin used to saturate the cellulose layer comprises at least 50 wt.-%, more preferably at least 80 wt.-%, still more preferably at least 90 wt.-%, and most preferably at least 95 wt.-% of SBR copolymer in terms of the weight of the total polymer present in the saturation, with the remainder preferably being other polymers.
  • the other polymers are preferably selected from the group consisting of polyvinyl alcohol, polyvinyl acetate, polyvinyl chloride, acrylates, polyurethanes and combinations, in particular blends thereof.
  • saturation is understood as synonymous with "impregnation”.
  • the amount of saturation resin in the heat-sealable paper is 2-15 g/m 2 , preferably 3 to 12 g/m 2 , and even more preferably 4-10 g/m 2 . It is preferable to saturate the cellulose layer when the coating is applied on only one side of the cellulose layer. By using a saturated cellulose layer, the cohesion between the uncoated side and the coated side of the cellulose layer can be improved. This is advantageous for the use as heat-sealable wrapping paper.
  • An aqueous dispersion of a styrene-butadiene copolymer within the meaning of the present invention is an "SBR latex" or a “styrene-butadiene latex”.
  • the surface coating composition may comprise a film-forming component and a solvent.
  • the film-forming component is preferably a water-dispersible polymerizable material and more preferably water-dispersed styrene-butadiene copolymer.
  • the surface coating composition may optionally comprise pigments and/or other additives.
  • the coated paper of the present invention can be produced using wet-laying processes known to the skilled person. When additives such as wet strength- and/or sizing agents are present in the cellulose layer, these are added to the pulp.
  • the saturation can be carried out according to any known method such as in a dip bath, which is then squeezed off with rollers.
  • the coating can be applied with an air brush, a "Mayer Bar”, a “Speed Sizer”, a roller blade, an anilox roller or a "Blade Coater”. Another possibility to apply the coating on the cellulose layer is by means of air knife coating.
  • the SBR coating as well as the saturation step, where applicable, can be performed online and since the solvent is water no emission problem will arise.
  • the coated paper according to the present invention has a basis weight of 25-60 g/m 2 , preferably 30-60 g/m 2 and more preferably 35-55 g/m 2 .
  • a low grammage product has the required flexibility and stiffness so that it can be used as packaging material. If the basis weight is lower than 25 g/m 2 , the paper easily tears so as to be unsuitable to be used as packaging. In contrast, if the basis weight is higher than 70 g/m 2 than the paper is not flexible anymore.
  • the coated paper according to the present invention may have a thickness of 35 - 70 ⁇ m, preferably 40 - 60 ⁇ m.
  • the tensile strength of the coated paper according to the present invention in machine direction is preferably 40-90 N/15mm, more preferably 60-80 N/15mm.
  • the tensile strength of the heat sealable paper in cross direction is 20-70 N/15mm, preferably 30-50 N/15mm.
  • the bending stiffness of the coated paper according to the present invention in machine direction is preferably 0.12-0.5 Nmm and, more preferably 0.19-0.35 Nmm.
  • the bending stiffness in cross direction is preferably 0.01-0.1 Nmm and, more preferably, 0.01-0.05 Nmm.
  • the Cobb value of the coated paper as measured on a side comprising the SBR coating is preferably 1-20 g/m 2 and, more preferably 2-12 g/m 2 and even more preferably 3-8 g/m 2 .
  • the minimum folding endurance in machine direction is preferably 500-5000 number of double folds, more preferably 1500-4000 and even more preferably 1800-3500.
  • the minimum folding endurance in cross direction is preferably 300-4000 number of double folds, more preferably 1300-3500 and even more preferably 1800-3000.
  • the coated paper according to the present invention preferably has a tear resistance in machine direction of 80-400 mN, more preferably 100-320 mN and even more preferably 150-250 mN.
  • the tear resistance in cross direction is preferably 80-450 mN, more preferably 120-350 mN and even more preferably 200-300 mN.
  • the coated paper according to the present invention preferably has an elongation at break in machine direction 1.5-4.5%, more preferably 1.8-4.0% and even more preferably 2.0-3.0%.
  • the elongation at break in cross direction is preferably 6-20%, more preferably 8-15% and even more preferably 10-13%.
  • the coated paper according to the present invention has a Gurley smoothness (as measured on the side with the coating) equal to or higher than 200 Gurley seconds.
  • Gurley smoothness (as measured on the side with the coating) is preferably 200-850 Gurley seconds, more preferably 300-700 Gurley seconds and even more preferably 350-600 Gurley seconds.
  • the coated paper according to the present invention has a basis weight of 30-60 g/m 2 , a thickness of 35-70 ⁇ m, a tensile strength of the paper in machine direction of 40-90 N/15mm, and a tensile strength in cross direction of 20-70 N/15mm.
  • the coated paper according to the present invention has a basis weight of 35-55 g/m 2 , a thickness of 40-60 ⁇ m, a tensile strength of the paper in machine direction of 60-80 N/15mm, and a tensile strength in cross direction of 30-50 N/15mm.
  • the coated paper according to the present invention has a basis weight of 35-55 g/m 2 , a thickness of 40-60 ⁇ m, a tensile strength of the paper in machine direction of 60-80 N/15mm, a tensile strength in cross direction of 30-50 N/15mm, a tear resistance in machine direction of 150-250 mN, a tear resistance in cross direction of 200-300 mN, an elongation at break in machine direction of 2.0-3.0%, and an elongation at break in cross direction of 10-13%.
  • Standard atmospheres for conditioning and testing according to DIN EN 20187:1993. The sample were first conditioned and then tested to determine the features indicated below.
  • Thickness according to EN ISO 534:2011 with a compressive load of 1.0 bar.
  • Bending stiffness measured with CREUSOT-LOIRE Instrumentation (adamel-Ihomargy 15 Avenue Jean Jaures 94201 Ivry/Seine; licence Kodak Pathe). Sample are conditioned according to DIN EN 20187. From these samples, at least 8 measuring strips 15 mm wide and 150 mm long are cut longitudinally and transversely to the machine direction. The samples shall be free from wrinkles, creases, creases, holes, watermarks and other irregularities. The experiments are carried out in the same climate in which the sample pretreatment has taken place. Before starting the test, check that the free length of zero (that is, if the sample top is flush with the top edge of the swing clamp), the display on the scale is also zero.
  • the resonance is achieved when the free length of the sample has a maximum deflection.
  • the free length which is then equal to the resonance length, is read on the scale. After reading the resonance length, one will quickly come out of the resonance range by carefully pulling the sample further. (Can be repeated any number of times).
  • the test sample is a strip of 15 mm wide and at least 6"long.
  • Work instruction i) ensure the switch is "off”; ii) turn the knob on the motor so that the jaws of the bottom clamp point upward; iii) place the strip in the top and bottom clamps so that it is straight and centered in the clamps; iv) tighten the top clamp; v) place 1 Kg weight onto the top platform, align the sample strip and tighten the bottom clamp; vi) remove weight from the platform and ensure the counter is set to zero; vii) turn the machine on; take the reading when the strip breaks.
  • the test is repeated 5 times and the minimum folding endurance corresponds to the average value of the 5 tests.
  • Gloss according to ISO 2813:2015-02. The measurement has been performed using BYK Gardner micro-Trio-gloss (CAT-No. 4520; Ser. No. 197383). The measuring angle depends on the gloss unit and corresponds to:

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)

Claims (12)

  1. Papier couché constitué d'une couche de cellulose et d'un revêtement sur au moins un côté de la couche de cellulose, dans lequel la couche de cellulose comprend une colle interne, dans lequel le revêtement est un film formé sur une surface de la couche de cellulose et comprend un copolymère styrène-butadiène, dans lequel le poids de base du papier couché est de 25 à 60 g/m2, dans lequel le papier couché est thermoscellable, et dans lequel le papier couché présente les propriétés supplémentaires suivantes :
    (1) un lissé Gurley mesuré tel que décrit dans la description sur le côté avec le revêtement égal ou supérieur à 200 secondes Gurley, et
    (2) un brillant tel que mesuré sur le côté avec le revêtement, mesuré à un angle de mesure de 60° selon l'ISO 2813:2015-02 de 8 à 40 GU, soit des unités de brillant.
  2. Papier couché selon la revendication 1, dans lequel le poids de base du revêtement sur un côté de la couche de cellulose est de 1 à 10 g/m2.
  3. Papier couché selon la revendication 1 ou la revendication 2, dans lequel le revêtement n'est présent que d'un côté de la couche de cellulose.
  4. Papier couché selon la revendication 3, dans lequel la couche de cellulose est saturée au moins sur le côté de la couche de cellulose opposé au revêtement.
  5. Papier couché selon la revendication 1 ou la revendication 2, dans lequel le revêtement est présent des deux côtés de la couche de cellulose.
  6. Papier couché selon la revendication 4, dans lequel le poids de base du revêtement de chaque côté de la couche de cellulose est de 1 à 10 g/m2.
  7. Papier couché selon l'une quelconque des revendications 1 à 6, dans lequel la couche de cellulose présente un poids de base de 20 à 50 g/m2.
  8. Papier couché selon l'une quelconque des revendications 1 à 7, dans lequel le papier couché présente un poids de base de 35 à 55 g/m2.
  9. Emballage comprenant le papier couché selon l'une quelconque des revendications 1 à 8.
  10. Procédé de fabrication du papier couché selon l'une quelconque des revendications 1 à 8, le procédé comprenant les étapes de fourniture d'une couche de cellulose,
    l'application d'une dispersion aqueuse d'un copolymère styrène-butadiène sur au moins une surface de la couche de cellulose et le séchage de la couche de cellulose avec la dispersion aqueuse d'un copolymère styrène-butadiène sur sa surface pour former un revêtement, et
    facultativement la saturation de la couche de cellulose avant la formation du revêtement.
  11. Procédé selon la revendication 10, dans lequel
    lors de l'étape de formation du revêtement, la dispersion de copolymère styrène-butadiène est appliquée des deux côtés de la couche de cellulose.
  12. Procédé selon la revendication 10, dans lequel
    l'étape de saturation de la couche de cellulose est réalisée, et
    lors de l'étape de formation du revêtement, la dispersion de copolymère styrène-butadiène est appliquée sur un seul côté de la couche de cellulose.
EP19171364.3A 2019-04-26 2019-04-26 Papier d'emballage thermoscellable Active EP3730695B2 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES19171364T ES2924344T5 (en) 2019-04-26 2019-04-26 Heat-sealable wrapping paper
EP19171364.3A EP3730695B2 (fr) 2019-04-26 2019-04-26 Papier d'emballage thermoscellable
EP24218300.2A EP4516999A3 (fr) 2019-04-26 2020-04-27 Papier d'emballage thermoscellable
EP20722543.4A EP3959378B1 (fr) 2019-04-26 2020-04-27 Papier d'emballage thermoscellable
PCT/EP2020/061632 WO2020216961A1 (fr) 2019-04-26 2020-04-27 Papier d'emballage thermoscellable
ES20722543T ES3012123T3 (en) 2019-04-26 2020-04-27 Heat-sealable wrapping paper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19171364.3A EP3730695B2 (fr) 2019-04-26 2019-04-26 Papier d'emballage thermoscellable

Publications (3)

Publication Number Publication Date
EP3730695A1 EP3730695A1 (fr) 2020-10-28
EP3730695B1 EP3730695B1 (fr) 2022-06-29
EP3730695B2 true EP3730695B2 (fr) 2025-07-02

Family

ID=66290305

Family Applications (3)

Application Number Title Priority Date Filing Date
EP19171364.3A Active EP3730695B2 (fr) 2019-04-26 2019-04-26 Papier d'emballage thermoscellable
EP24218300.2A Pending EP4516999A3 (fr) 2019-04-26 2020-04-27 Papier d'emballage thermoscellable
EP20722543.4A Active EP3959378B1 (fr) 2019-04-26 2020-04-27 Papier d'emballage thermoscellable

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP24218300.2A Pending EP4516999A3 (fr) 2019-04-26 2020-04-27 Papier d'emballage thermoscellable
EP20722543.4A Active EP3959378B1 (fr) 2019-04-26 2020-04-27 Papier d'emballage thermoscellable

Country Status (3)

Country Link
EP (3) EP3730695B2 (fr)
ES (2) ES2924344T5 (fr)
WO (1) WO2020216961A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11638504B2 (en) 2020-03-16 2023-05-02 Gpcp Ip Holdings Llc Paper wraps, paper wrapped products, and methods of making the same
WO2022242875A1 (fr) 2021-05-21 2022-11-24 Neenah Gessner Gmbh Papier couché destiné à être utilisé comme matériau d'emballage
GB2612641B (en) * 2021-11-08 2024-05-01 Futamura Chemical Uk Ltd Biodegradable article
WO2023237806A1 (fr) * 2022-06-10 2023-12-14 Upm-Kymmene Corporation Matériau barrière thermoscellable
JP7243901B1 (ja) 2022-06-17 2023-03-22 王子ホールディングス株式会社 ヒートシール紙及び紙加工品

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5341511A (en) * 1976-09-27 1978-04-15 Oji Paper Co Production of moisture and water proof paper
GB9309024D0 (en) 1993-04-30 1993-06-16 Ici Plc Composite sheet
DE4407878C2 (de) * 1994-03-09 1996-07-04 Bernhard Dettling Aroma- und dampfsperrendes(r), beschichtetes(r) Papier oder Karton
US7182837B2 (en) 2002-11-27 2007-02-27 Kimberly-Clark Worldwide, Inc. Structural printing of absorbent webs
ES2305517T5 (es) 2003-02-27 2018-05-30 Landqart Ag Laminado multicapa
US7732057B2 (en) 2006-07-20 2010-06-08 Neenah Paper, Inc. Formaldehyde-free paper backed veneer products and methods of making the same
JP2009074202A (ja) 2007-09-21 2009-04-09 Oji Paper Co Ltd オフセット印刷用紙製造方法およびオフセット印刷用紙
DE202007015170U1 (de) 2007-10-31 2008-02-07 Sca Hygiene Products Gmbh Gerollte Produkte mit einem verschließbaren Hohlraum
JP5670206B2 (ja) 2008-02-27 2015-02-18 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ セルロース含有層を有する多層複合材料とその製造方法及び用途
WO2009142825A1 (fr) 2008-03-27 2009-11-26 Avery Dennison Corporation Matériau multicouche et procédés associés
CN101952508B (zh) 2008-03-31 2013-01-23 日本制纸株式会社 制纸用添加剂和含有其的纸
US8663425B2 (en) 2009-07-31 2014-03-04 Oji Holdings Corporation Method for manufacturing microfibrous cellulose composite sheets and method for manufacturing microfibrous cellulose composite sheet laminate
WO2012011559A1 (fr) 2010-07-23 2012-01-26 王子製紙株式会社 Toile pour la fabrication d'une feuille de papier contenant de la cellulose microfibreuse et méthode de fabrication d'une feuille contenant de la cellulose microfibreuse
JP2012117174A (ja) 2010-12-02 2012-06-21 Oji Paper Co Ltd コールドセット用オフセット印刷用紙
DE202011100263U1 (de) 2011-05-04 2011-08-22 Felix Schoeller Jr. Foto- Und Spezialpapiere Gmbh & Co Kg Eine mehrschichtige Verpackungsfolie und daraus hergestellte Verpackungen
EP2777934B1 (fr) 2011-11-10 2017-03-15 Nippon Paper Industries Co., Ltd Matériau d'emballage à papier barrière
WO2013119254A1 (fr) 2012-02-10 2013-08-15 Hewlett-Packard Development Company, L.P. Panneaux composites et cadres décoratifs les comprenant
FI124411B (fi) 2012-07-05 2014-08-15 Upm Kymmene Corp Elintarvikepakkaus
CN103362029A (zh) 2013-07-10 2013-10-23 佛山市新飞卫生材料有限公司 一种无溶剂硅油超薄离型纸及其制作方法
CA2917792C (fr) 2013-07-19 2018-03-20 Asahi Kasei Fibers Corporation Feuille de fibres de cellulose fines
PL3052700T3 (pl) 2013-10-01 2018-02-28 Coldenhove Know How B.V. Materiał pokrywający blistrowe opakowanie i temu podobne
FR3024467B1 (fr) 2014-07-30 2019-05-17 Munksjö Oyj Papier barriere thermoscellant
JP2016135932A (ja) 2015-01-23 2016-07-28 王子ホールディングス株式会社 耐油紙及びその製造方法
PL3286378T3 (pl) 2015-04-20 2019-10-31 Kotkamills Group Oyj Sposób i układ do wytwarzania powlekanej tektury i powlekana tektura
US10889938B2 (en) 2015-05-12 2021-01-12 Basf Se Coated substrate comprising a surface-treated, aqueous-based polymer coating and methods of making and using the same
CA2940370A1 (fr) * 2016-08-25 2018-02-25 Cascades Sonoco, Inc. Substrat a base de papier couche destine a des contenants et procede de fabrication associe
JP6673126B2 (ja) 2016-09-30 2020-03-25 王子ホールディングス株式会社 ヒートシールシートおよび包装体
CN106801360A (zh) 2016-12-30 2017-06-06 淄博欧木特种纸业有限公司 全热新风纸及其制备方法
JP6877257B2 (ja) 2017-06-16 2021-05-26 大王製紙株式会社 耐油紙

Also Published As

Publication number Publication date
EP4516999A2 (fr) 2025-03-05
EP3959378B1 (fr) 2025-01-08
ES3012123T3 (en) 2025-04-08
ES2924344T5 (en) 2025-09-25
ES2924344T3 (es) 2022-10-06
WO2020216961A1 (fr) 2020-10-29
EP3730695A1 (fr) 2020-10-28
EP3959378A1 (fr) 2022-03-02
EP4516999A3 (fr) 2025-06-04
EP3730695B1 (fr) 2022-06-29

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