EP2251483B1 - Beschichtes Papier mit einer höhen Bedruckbarkeit und Verfahren für seine Herstellung - Google Patents

Beschichtes Papier mit einer höhen Bedruckbarkeit und Verfahren für seine Herstellung Download PDF

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Publication number
EP2251483B1
EP2251483B1 EP10160132A EP10160132A EP2251483B1 EP 2251483 B1 EP2251483 B1 EP 2251483B1 EP 10160132 A EP10160132 A EP 10160132A EP 10160132 A EP10160132 A EP 10160132A EP 2251483 B1 EP2251483 B1 EP 2251483B1
Authority
EP
European Patent Office
Prior art keywords
weight
composition
total weight
printability
coated 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
EP10160132A
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English (en)
French (fr)
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EP2251483A1 (de
Inventor
Pierino Piano
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.)
Fedrigoni SpA
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Fedrigoni SpA
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Filing date
Publication date
Application filed by Fedrigoni SpA filed Critical Fedrigoni SpA
Priority to SI201030131T priority Critical patent/SI2251483T1/sl
Priority to PL10160132T priority patent/PL2251483T3/pl
Publication of EP2251483A1 publication Critical patent/EP2251483A1/de
Application granted granted Critical
Publication of EP2251483B1 publication Critical patent/EP2251483B1/de
Priority to CY20121101129T priority patent/CY1113398T1/el
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D21H19/00—Coated paper; Coating material
    • D21H19/10—Coatings without pigments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • 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
    • D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds 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
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/46—Non-macromolecular organic compounds
    • D21H19/48—Diolefins, e.g. butadiene; Aromatic vinyl monomers, e.g. styrene; Polymerisable unsaturated acids or derivatives thereof, e.g. acrylic acid
    • 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
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
    • D21H23/34—Knife or blade type coaters
    • 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
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
    • D21H25/16—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with a blast of vapour or gas, e.g. air knife
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B41M5/5218—Macromolecular coatings characterised by inorganic additives, e.g. pigments, clays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B41M5/5254—Macromolecular coatings characterised by the use of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B41M5/5263—Macromolecular coatings characterised by the use of polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • B41M5/5281—Polyurethanes or polyureas

Definitions

  • the present invention refers to a high-printability coated paper and to a method for its production.
  • a first drawback is constituted by the extreme sensitivity of the coating layer to pressure, a phenomenon that leads to adhesiveness between successive coils of coated paper when it is spooled onto a roll or between successive sheets once the paper has been cut and stacked (in the jargon, this phenomenon is known as "blocking").
  • a second drawback is related to lower print quality on the above mentioned paper products compared to what can be obtained on traditional papers for graphic uses. Specifically, it has been found that there are difficulties in anchoring the ink, a lack of sharpness of the print typeset, and what is known as "setoff" owing to the ink slow drying speed.
  • US-4 507 426 discloses polymeric agents useful for thickening aqueous systems including latex paints and other aqueous coating compositions.
  • US 4 155 892 discloses a polyurethane thickener for aqueous compositions.
  • US 5 478 388 discloses a pigment for a coating composition for printing paper.
  • the aim of the present invention is to obtain a paper, and specifically a high-printability coated paper, that has a tactile sensation which is special and unique, different from other products present on the market.
  • an object of the present invention is to make available a high-printability coated paper that can be used for packaging and for printing using the methods normally used for natural or traditional coated papers, including for example offset, embossing, hot stamping, thermal imaging and silk-screen for printing, and cutting, punching, creasing, folding and gluing for packaging operations.
  • Another object of the invention is to provide a high-printability coated paper that, specifically, has a surface that is soft and smooth to the touch and which at the same time has an opacity such as to bring to mind the concept of softness, also in visual terms.
  • a further object of the invention is to make available a method for producing a new type of high-printability coated paper which is extremely reliable and efficacious.
  • a further object of the invention is to develop a high-printability coated paper that allows effective anchoring of the ink during printing and which, at the same time, is less subject to the phenomenon of blocking.
  • the invention also provides a method for producing coated paper, as defined in claim 4.
  • the present invention refers to a coated paper, particularly adapted to printing and packaging, which comprises a paper substrate that has at least one coated face.
  • the coating comprises a layer, of substantially uniform thickness, of a composition that comprises a polyurethane-based polymeric material in a percentage comprised between 65% and 90% by weight of the total weight and latex in a percentage comprised between 5% and 20% by weight of the total weight.
  • composition is constituted by an aqueous dispersion of polyurethane-based polymeric material and latex.
  • the composition also comprises talc in a percentage of less than 20% by weight of the total weight.
  • the paper substrate has a grammage that is comprised between 85g/m 2 and 400 g/m 2 , a Bendtsen roughness degree that is comprised between 50 ml/min and 200 ml/min and a water absorption index (Cobb index) that is comprised between 20 g/m 2 and 25 g/m 2 .
  • the paper substrates used can be white or mass-coloured.
  • the polyurethane-based polymeric material comprises a film-forming bonding agent, which comprises dispersions of anionic urethane polymers having aliphatic rigid segments and flexible polyether and polyester segments.
  • Rolflex 2090 which is made by Lamberti S.p.A. in Gallarate (Varese, Italy) and which comprises, as well as the abovementioned components, silica, formulation auxiliaries and functional additives, has been found to be particularly suitable.
  • the composition is applied to such at least one face of the paper substrate in a quantity comprised between 3 g/m 2 and 15 g/m 2 , preferably between 5 g/m 2 and 10 g/m 2 .
  • the talc added to the composition has an average diameter of 2.0 microns and a granulometric distribution such that at least 45%, preferably at least 48%, of the particles have a diameter of less than 2 microns.
  • the latex used is of the SBR (Styrene-Butadiene-Rubber) type, but obviously there is no reason why other types of latex such as, for example, acrylic-based latexes should not be used, even though experimental results for such latexes have not been shown to be as satisfactory.
  • SBR Styrene-Butadiene-Rubber
  • the present invention provides a method for producing coated paper which provides for the deposition, by coating, on at least one face of a paper substrate, of a composition comprising a polyurethane-based polymeric material in a percentage comprised between 65% and 90% by weight of the total weight and latex in a percentage comprised between 5% and 20% by weight of the total weight.
  • the composition comprises talc in a percentage of less than 20% by weight of the total weight.
  • the coating comprises an air knife coating.
  • the temperature of the ribbon of coated paper should be kept at a temperature lower than 30°C.
  • the production method makes use of one or more spreading rollers to take the coating that has a composition comprising polyurethane-based polymeric material, latex and possibly talc, in the percentages indicated above from a containment receptacle and to transfer it onto a ribbon of paper substrate upon which the coating is to be executed.
  • the quantity of coating applied exceeds the desired end result and the operation to remove the excess quantity is carried out by means of a "calibrated air blast" or air knife located immediately downstream of the applicator rollers.
  • drying phase which takes place by means of various different technologies such as, for example, radiation drying using infrared rays, convection drying using hot-air hoods, or conduction drying using steam-heated cylinders.
  • This phase can be followed by an identical sequence of operations if it is desired to apply a coating to the other side of the paper substrate as well.
  • any accessory operations for example cooling, coating, smoothing
  • any accessory operations for example cooling, coating, smoothing

Landscapes

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

Claims (7)

  1. Beschichtetes Papier mit hoher Bedruckbarkeit, umfassend ein Papiersubstrat, das wenigstens eine beschichtete Seite aufweist, wobei die Beschichtung eine im Wesentlichen gleichmäfsig dicke Schicht einer Zusammensetzung umfasst, die ein Polymermaterial auf Polyurethanbasis in einem Prozentanteil zwischen 65 und 90 Gewichts-% des Gesamtgewichts und Latex in einem Prozentanteil zwischen 5 und 20 Gewichts-% des Gesamtgewichts enthält, wobei die Zusammensetzung Talkum in einem Prozentanteil von weniger als 20 Gewichts-% des Gesamtgewichts enthält, wobei das Polymermaterial auf Polyurethanbasis ein filmbildendes Haftmittel umfasst, das Dispersionen von anionischen Urethanpolymeren mit aliphatischen starren Segmenten und flexiblen Polyether- und Polyestersegmenten umfasst, wobei die Zusammensetzung auf wenigstens einer Seite in einer Menge zwischen 3 g/m2 und 15 g/m2, vorzugsweise zwischen 5 g/m2 und 10 g/m2 aufgebracht ist, wobei das Talkum einen mittleren Durchmesser von 2,0 Mikrometern und eine solche Partikelgrößenverteilung aufweist, dass wenigstens 45% der Partikel einen Durchmesser von weniger als 2 Mikrometern aufweisen.
  2. Beschichtetes Papier mit hoher Bedruckbarkeit nach Anspruch 1, dadurch gekennzeichnet, dass das Papiersubstrat eine Grammatur zwischen 85 g/m2 und 400 g/m2 aufweist.
  3. Beschichtetes Papier mit hoher Bedruckbarkeit nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet dass der Latex vom Typ SBR (Styrol-Butadien-Kautschuk) ist.
  4. Verfahren zur Herstellung von beschichtetem Papier mit hoher Bedruckbarkeit, dadurch gekennzeichnet, dass es den Schritt umfasst, dass auf wenigstens einer Seite eines Papiersubstrats durch Beschichten eine Zusammensetzung aufgebracht wird, die ein Polymermaterial auf Polyurethanbasis in einem Prozentanteil zwischen 65 und 90 Gewichts-% des Gesamtgewichts und Latex in einem Prozentanteil zwischen 5 und 20 Gewichts-% des Gesamtgewichts enthält, wobei die Zusammensetzung Talkum in einem Prozentanteil von weniger als 20 Gewichts-% des Gesamtgewichts enthält, wobei das Polymermaterial auf Polyurethanbasis ein filmbildendes Haftmittel umfasst, das Dispersionen von anionischen Urethanpolymeren mit aliphatischen starren Segmenten und flexiblen Polyether- und Polyestersegmenten umfasst, wobei die Zusammensetzung auf wenigstens eine Seite in einer Menge zwischen 3 g/m2 und 15 g/m2, vorzugsweise zwischen 5 g/m2 und 10 g/m2 aufgebracht wird, wobei das Talkum einen mittleren Durchmesser von 2,0 Mikrometern und eine solche Partikelgrößenverteilung aufweist, dass wenigstens 45% der Partikel einen Durchmesser von weniger als 2 Mikrometern aufweisen.
  5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass die Zusammensetzung Talkum in einem Prozentanteil von weniger als 20 Gewichts-% des Gesamtgewichts enthält.
  6. Verfahren nach einem oder mehreren der Ansprüche 4 und 5, dadurch gekennzeichnet, dass die Beschichtung eine Luftmesserbeschichtung umfasst.
  7. Verfahren nach einem oder mehreren der Ansprüche 4 und 5, dadurch gekennzeichnet, dass die Temperatur des Bandes von beschichtetem Papier unter 30°C gehalten wird.
EP10160132A 2009-04-20 2010-04-16 Beschichtes Papier mit einer höhen Bedruckbarkeit und Verfahren für seine Herstellung Active EP2251483B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI201030131T SI2251483T1 (sl) 2009-04-20 2010-04-16 Preslojen papir za visoko natisljivost in postopek za njegovo izdelavo
PL10160132T PL2251483T3 (pl) 2009-04-20 2010-04-16 Powlekany papier o wysokiej podatności na zadrukowanie oraz sposób jego wytwarzania
CY20121101129T CY1113398T1 (el) 2009-04-20 2012-11-21 Επιστρωμενο χαρτι υψηλης εκτυπωσιμοτητας και μεθοδος για την παραγωγη του

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITVR2009A000054A IT1394017B1 (it) 2009-04-20 2009-04-20 Carta patinata ad elevata stampabilita' e procedimento per la sua produzione

Publications (2)

Publication Number Publication Date
EP2251483A1 EP2251483A1 (de) 2010-11-17
EP2251483B1 true EP2251483B1 (de) 2012-10-31

Family

ID=40935508

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10160132A Active EP2251483B1 (de) 2009-04-20 2010-04-16 Beschichtes Papier mit einer höhen Bedruckbarkeit und Verfahren für seine Herstellung

Country Status (10)

Country Link
EP (1) EP2251483B1 (de)
CY (1) CY1113398T1 (de)
DK (1) DK2251483T3 (de)
ES (1) ES2394043T3 (de)
HK (1) HK1150867A1 (de)
HR (1) HRP20121057T1 (de)
IT (1) IT1394017B1 (de)
PL (1) PL2251483T3 (de)
PT (1) PT2251483E (de)
SI (1) SI2251483T1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103114497A (zh) * 2012-12-27 2013-05-22 天津海华科技发展有限公司 艺术品复制用卷轴宣纸及其制作工艺

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3281267A (en) * 1961-11-13 1966-10-25 Lowe Paper Co High gloss coated paper
US4155892A (en) * 1975-10-03 1979-05-22 Rohm And Haas Company Polyurethane thickeners for aqueous compositions
US4507426A (en) * 1983-01-03 1985-03-26 The Dow Chemical Company Synergistic mixture of polyurethane and emulsion polymers useful as thickeners for aqueous systems
US5085707A (en) * 1988-05-23 1992-02-04 Georgia Kaolin Company, Inc. Defined and delaminated kaolin product
GB2277743B (en) * 1993-05-04 1997-07-16 Ecc Int Ltd A pigement for a coating composition for printing paper
US6020407A (en) * 1995-11-07 2000-02-01 Rheox, Inc. Super dispersable thickening composition for aqueous systems and a method of thickening said aqueous systems
WO2005111153A1 (de) * 2004-05-12 2005-11-24 Alpha Calcit Füllstoff Gesellschaft Mbh Oberflächenmodifizierte anorganische füllstoffe und pigmente

Also Published As

Publication number Publication date
PT2251483E (pt) 2013-01-29
ES2394043T3 (es) 2013-01-16
EP2251483A1 (de) 2010-11-17
SI2251483T1 (sl) 2013-02-28
HRP20121057T1 (hr) 2013-02-28
PL2251483T3 (pl) 2013-03-29
DK2251483T3 (da) 2013-02-11
IT1394017B1 (it) 2012-05-17
CY1113398T1 (el) 2016-06-22
ITVR20090054A1 (it) 2010-10-21
HK1150867A1 (en) 2012-01-13

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