EP3186442B2 - Papier barriere thermoscellant - Google Patents

Papier barriere thermoscellant Download PDF

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Publication number
EP3186442B2
EP3186442B2 EP15752945.4A EP15752945A EP3186442B2 EP 3186442 B2 EP3186442 B2 EP 3186442B2 EP 15752945 A EP15752945 A EP 15752945A EP 3186442 B2 EP3186442 B2 EP 3186442B2
Authority
EP
European Patent Office
Prior art keywords
filler
paper
layer
lamellar
finer
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
EP15752945.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3186442A1 (fr
EP3186442B1 (fr
Inventor
Laurent Schildknecht
Séverine SCHOTT
Pascale Escaffre
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.)
Ahlstrom Corp
Original Assignee
Ahlstrom Corp
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 Ahlstrom Corp filed Critical Ahlstrom Corp
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/42—Applications of coated or impregnated materials
    • 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
    • D21H19/22—Polyalkenes, e.g. polystyrene
    • 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
    • D21H19/38—Coatings with pigments characterised by the 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
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/385—Oxides, hydroxides or carbonates
    • 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
    • D21H19/38—Coatings with pigments characterised by the pigments
    • D21H19/40—Coatings with pigments characterised by the pigments siliceous, e.g. clays
    • 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
    • D21H19/54—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
    • 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
    • D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H19/58—Polymers or oligomers of diolefins, aromatic vinyl monomers or unsaturated acids or 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
    • 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
    • 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
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed
    • 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
    • D21H19/80—Paper comprising more than one coating
    • D21H19/82—Paper comprising more than one coating superposed
    • D21H19/826—Paper comprising more than one coating superposed two superposed coatings, the first applied being pigmented and the second applied being non-pigmented
    • 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
    • D21H19/80—Paper comprising more than one coating
    • D21H19/84—Paper comprising more than one coating on both sides of the substrate
    • 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
    • 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
    • D21H21/50—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 form
    • D21H21/52—Additives of definite length or shape
    • 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

Definitions

  • Packaging made from barrier papers manufactured online are described in the application WO2011/056130 .
  • online manufacturing we mean manufacturing on a single production tool comprising all the elements useful for making paper.
  • the precoat is preferably made up of a mixture of at least one latex and sometimes even fillers. called “pigments”.
  • the fillers are preferably constituted by a mixture of lamellar filler(s) and finer fillers, in particular non-lamellar fillers.
  • the lamellar filler(s) are particles in the form of lamellae having a form factor (ratio between greatest length and thickness) greater than or equal to 15, more preferably at least 40 and even more preferably at least 60 .
  • Finer fillers can be chosen from any other pigments used in stationery, which meet the required size requirements.
  • the particles of the finer filler(s) may be chosen from calcium carbonate, barium sulfate, silica, titanium dioxide or mixtures thereof, etc. They are characterized by a particle size 80% lower by weight. at 2 microns, measured according to the Sédigraph ISO13317-3 method
  • the binder is preferably chosen from the aforementioned latexes but other binders or co-binders such as PVOH, starch, CMC, etc. can be used.
  • the binder may include a polymer of a chemical nature not present in the covering layer.
  • polymers are applied pure or mixed with fillers.
  • pure we mean without particle charge.
  • Other products can optionally be added to the polymer dispersion such as pH management agents, rheological agents (viscosity for example), anti-foam agents, wettability agents,
  • the covering layer is applied in-line.
  • the invention makes it possible to obtain good water vapor barrier levels with covering layer weights not exceeding 10g/m 2 dry.
  • the in-line coating of a composition intended to form the heat-sealing covering layer is possible , provided that sufficient drying capacity is used to dry the layer before the winding operation.
  • a relatively low cover layer weight can facilitate in-line drying, while providing sufficient barrier properties.
  • the online process increases productivity by eliminating handling operations associated with offline processing.
  • the paper sheet After drying the fibrous substrate, the paper sheet can pass through a friction cylinder (“Yankee cylinder” in English) to improve the surface condition of the sheet and thus the distribution of the first layer.
  • a friction cylinder (“Yankee cylinder” in English) to improve the surface condition of the sheet and thus the distribution of the first layer.
  • the sheet can then be processed using a size press or any other equipment of the same type.
  • a pigment composition can be used beforehand to make a “pore filler”.
  • This pore filler composition can contain up to 20 dry parts relative to the dry fillers of binder such as latex, of a styrene-butadiene chemical nature for example, and up to 20 dry parts relative to the dry pigments of co-binders such as starch for example.
  • binder such as latex, of a styrene-butadiene chemical nature for example
  • co-binders such as starch
  • This composition preferably contains fillers which are generally less than 2 microns in size. These fillers can be chosen, among others, from kaolins or calcium carbonates or mixtures thereof.
  • the precoat is applied to the support thus treated using any of the coating techniques that can be encountered on paper machines. This may include blade coating, rotogravure, reverse engraving or Meyer bar coating.
  • the precoat is deposited with a dry coat weight preferably between 4 and 12g/m 2 .
  • This precoat is then dried without contact by one or more infrared ovens and/or one or more hot air ovens.
  • a Bekk level of 150 seconds is sufficient (measured according to ISO 5627).
  • the water vapor barrier and heat seal overcoat is applied by coating using any of the coating techniques that may be encountered on paper machines. This can be, for example, blade coating, rotogravure, reverse engraving or Meyer bar coating.
  • the covering layer is applied with a dry layer weight of 10g/m 2 maximum.
  • This covering layer is then sufficiently dried, to prevent the turns from sticking to the winding coil, using one or more infrared ovens and/or one or more hot air ovens. .
  • Coating on the opposite side can be done to reinforce the barrier and/or to provide other functionalities such as printability, curl correction, etc.
  • the paper thus produced can optionally be calendered in-line to reduce surface roughness before being wound.
  • the final weight of the paper can be between 45 and 200g/ m2 .
  • the water vapor barrier measured according to the ASTM F1249 standard at 38°C and 90% relative humidity is less than 150g/ m2 /24h, and preferably less than 100g/ m2 /24h.
  • a fibrous support with a weight of 55g/ m2 is produced on a paper machine operating at 400m/min.
  • the paper machine is equipped with a friction roller placed before the size press.
  • the fibrous support is first rubbed then treated in-line on both sides by size-press with a pore-filling pigment composition, containing 100 dry parts of Amazon Premium type kaolin (Cadam), and a mixture of Merifilm 104 starch. (Tate&Lyle) and DL950 type latex (Dow) at a rate of 20 dry parts compared to dry kaolin.
  • the treatment applied is 5g/m 2 dry in total.
  • the dry weight of the applied precoat is 7g/ m2 and its formulation is given in the table below: Matter Reference/Nature Suppliers Shares % by mass Topsperse GX-N Dispersant COATEX 0.2 0.2 Capim NP Kaolin (lamellar filler) IMERYS 60.0 45.5 Amazon Prime Kaolin (finer filler) CADAM 40.0 30.4 Bacote 20 Cross-linker QUARRECHIM 1.5 1.1 DL950/Styrene-butadiene latex Tg 7°C Styrene-butadiene latex Tg 7°C DOW 30.0 22.8
  • the particle size at 97% by weight of Amazon Prime measured using the Sédigraph ISO13317-3 method, is less than 2 microns.
  • the particle form factor of Capim NP is 28.
  • the water vapor barrier is measured by a Mocon brand device, type Permatran 3/61 according to the ASTM F1249 standard at 38°C and 90% relative humidity to determine the barrier contribution of this precoat. It is measured at 334 +/-13g/ m2 /24h. After coating the covering layer, a barrier of less than 150 g/m 2 /24h is obtained.
  • the fibrous support is first rubbed then treated in-line on both sides by size-press with a pore-filler pigment composition containing 100 dry parts of Amazon Premium type kaolin (Cadam) and a mixture of Merifilm 104 starch (Tate&Lyle). ) and DL950 type latex (Dow) at a rate of 20 dry parts compared to dry kaolin.
  • the treatment applied is 5g/m 2 sec in total.
  • the dry weight of the applied precoat is 7g/ m2 and its formulation is given in the table below: Matter Reference/Nature Suppliers Shares % by mass Topsperse GX-N Dispersant COATEX 0.2 0.2 Capim NP Kaolin (lamellar filler) IMERYS 60.0 45.5 Hydrocarbon 95 Calcium carbonate (finer filler) OMYA 40.0 30.4 Bacote 20 Cross-linker QUARRECHIM 1.5 1.1 DL950/Styrene-butadiene latex Tg 7°C Styrene-butadiene latex Tg 7°C DOW 30.0 22.8
  • the water vapor barrier is measured by a Mocon brand device, type Permatran 3/61 according to the ASTM F1249 standard at 38°C and 90% relative humidity. It is measured at 21.0 +/-2.4g/m2/24h.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Paper (AREA)
  • Wrappers (AREA)
EP15752945.4A 2014-07-30 2015-07-29 Papier barriere thermoscellant Active EP3186442B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1457368A FR3024467B1 (fr) 2014-07-30 2014-07-30 Papier barriere thermoscellant
PCT/EP2015/067438 WO2016016340A1 (fr) 2014-07-30 2015-07-29 Papier barriere thermoscellant

Publications (3)

Publication Number Publication Date
EP3186442A1 EP3186442A1 (fr) 2017-07-05
EP3186442B1 EP3186442B1 (fr) 2021-05-26
EP3186442B2 true EP3186442B2 (fr) 2024-07-10

Family

ID=51659894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15752945.4A Active EP3186442B2 (fr) 2014-07-30 2015-07-29 Papier barriere thermoscellant

Country Status (11)

Country Link
US (1) US20170211237A1 (https=)
EP (1) EP3186442B2 (https=)
JP (2) JP2017524081A (https=)
CN (1) CN107075810B (https=)
AR (1) AR101667A1 (https=)
BR (1) BR112017001817B1 (https=)
CA (1) CA2956766A1 (https=)
FI (1) FI3186442T4 (https=)
FR (1) FR3024467B1 (https=)
WO (1) WO2016016340A1 (https=)
ZA (1) ZA201700739B (https=)

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JP5331265B1 (ja) * 2011-11-10 2013-10-30 日本製紙株式会社 紙製バリア包装材料
FI125255B (fi) * 2012-06-08 2015-08-14 Upm Kymmene Corp Menetelmä ja järjestelmä pakkausmateriaalin valmistamiseksi sekä pakkausmateriaali ja pakkaus
EP2870288A2 (en) 2012-07-03 2015-05-13 Huhtamäki Oyj A recyclable sheet material and a container thereof

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ZA201700739B (en) 2018-05-24
CN107075810B (zh) 2019-08-27
FR3024467B1 (fr) 2019-05-17
CA2956766A1 (fr) 2016-02-04
CN107075810A (zh) 2017-08-18
WO2016016340A1 (fr) 2016-02-04
EP3186442A1 (fr) 2017-07-05
JP2020073753A (ja) 2020-05-14
JP2017524081A (ja) 2017-08-24
US20170211237A1 (en) 2017-07-27
EP3186442B1 (fr) 2021-05-26
AR101667A1 (es) 2017-01-04
BR112017001817B1 (pt) 2022-02-01
FR3024467A1 (fr) 2016-02-05
BR112017001817A2 (pt) 2018-02-14
FI3186442T4 (en) 2024-08-02

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