EP2314766A1 - Papier satiné imprimable et son procédé de fabrication - Google Patents

Papier satiné imprimable et son procédé de fabrication Download PDF

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Publication number
EP2314766A1
EP2314766A1 EP10186814A EP10186814A EP2314766A1 EP 2314766 A1 EP2314766 A1 EP 2314766A1 EP 10186814 A EP10186814 A EP 10186814A EP 10186814 A EP10186814 A EP 10186814A EP 2314766 A1 EP2314766 A1 EP 2314766A1
Authority
EP
European Patent Office
Prior art keywords
layer
glaze
paper
article according
article
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.)
Granted
Application number
EP10186814A
Other languages
German (de)
English (en)
Other versions
EP2314766B1 (fr
Inventor
Renato Burba
Ferdinando Galli
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.)
Favini Srl
Original Assignee
Favini Srl
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 Favini Srl filed Critical Favini Srl
Priority to PL10186814T priority Critical patent/PL2314766T3/pl
Publication of EP2314766A1 publication Critical patent/EP2314766A1/fr
Application granted granted Critical
Publication of EP2314766B1 publication Critical patent/EP2314766B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with 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
    • 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
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • 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
    • D21H19/56—Macromolecular organic compounds or oligomers thereof 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
    • 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
    • D21H19/66—Coatings characterised by a special visual effect, e.g. patterned, textured
    • 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
    • D21H19/72—Coated paper characterised by the paper substrate
    • D21H19/76—Coated paper characterised by the paper substrate the substrate having specific absorbent properties
    • 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

Definitions

  • the present invention relates to a printable glazed paper article and the relative production process.
  • glazing compositions for coating the surface of sheets of paper has been known for some time in the paper industry.
  • the glazing compositions are applied to one or both sides of a sheet of paper in order to modify its external appearance, the mechanical properties, the feel and/or to make its surface more suitable for printing processes.
  • An objective of the present invention is to overcome the drawbacks of the state of the art.
  • a first object of the present invention relates to an printable glazed paper article comprising a paper support in a sheet or bobbin having at least one side coated with a layer of glaze, characterized in that said layer of glaze comprises
  • a second object of the present invention relates to an aqueous-based glazing composition for preparing a printable glazed paper article, said composition comprising
  • a further object of the present invention relates to a process for the production of a printable glazed paper article, in a sheet or bobbin, comprising the following operative steps:
  • the Applicant has surprisingly found that the particular combination of ingredients of the above glazing composition suitably applied to a paper support allows white, black or coloured glazed paper articles to be obtained, which have a surface with a high degree of opacity and at the same time a good printing yield, a pleasant feel, in addition to a good scratch resistance, whereas fingerprints deriving from contact with the hands of the user are almost invisible.
  • the paper articles, object of the present invention comprise a paper support of the type commonly used for graphic printing.
  • the paper support is generally produced in the form of a strip on a continuous machine for paper manufacturing.
  • the paper support can be used either in sheets or bobbins.
  • the support preferably has a grammage ranging from 80 g/m 2 to 400 g/m 2 , more preferably from 110 g/m 2 to 320 g/m 2 .
  • the paper support must have a composition and surface structure as homogeneous as possible.
  • the layer of glaze can be present on only one side or on both sides of the paper support.
  • the side of the support Before being coated with the layer of glaze, the side of the support must have a smooth index ranging from 100 ml/min. to 180 ml/min.
  • the best results in terms of opacity and pleasantness of feel, in particular softness, of the surface of the paper article are obtained using a paper support having a smooth index value, determined on its surface before application of the layer of glaze, preferably within the range of 120 ml/min. to 150 ml/min.
  • the smooth index values indicated in the present description are intended as being determined according to the Bendtsen method (method ISO 8791-2).
  • the paper support Before application of the layer of glaze, the paper support preferably has a water absorption index value lower than 40 g/m 2 , preferably lower than 30 g/m 2 .
  • the water absorption index values in the present description are intended as being determined according to the Cobb method (method ISO 535).
  • the layer of glaze which coats the paper support is a homogeneous and uniform layer which is applied by means of industrial glazing processes of paper materials known in the state of the art.
  • the layer of glaze which coats the paper support comprises at least one organic matting agent.
  • Organic matting agents which can be used for the purposes of the present invention are compounds known in the state of the art and used, for example, in the field of solvent-based or aqueous-based varnishing products.
  • the organic matting agent is preferably selected from the group consisting of polymethylurea, precipitated polyethylene, ground polytetrafluoroethylene (PTFE - Teflon®), micronized polyurethane and/or mixtures thereof.
  • the organic matting agent is more preferably polymethylurea.
  • the layer of glaze which coats the paper support also comprises a mineral pigment of the type normally used in the glazing field of paper materials.
  • the mineral pigment is preferably selected from the group consisting of precipitated calcium carbonate, calcined kaolin, talc and/or mixtures thereof.
  • the mineral pigment is more preferably precipitated calcium carbonate.
  • a further essential component of the layer of glaze of the paper article, object of the present invention consists of the polymeric binder.
  • the polymeric binder is preferably selected from styrene-butadiene latex, polyurethane latex, acrylic-vinyl acetate latex and/or mixtures thereof.
  • the polymeric binder is more preferably styrene-butadiene latex or polyurethane latex.
  • the above ingredients can be present in the layer of glaze in variable weight ratios depending on the type of aesthetical effect and feel properties to be obtained, and in relation to the colour intensity to be conferred to the surface of the paper article.
  • the "a:b:c” weight ratio of the ingredients "a” (organic matting agent), "b” (mineral pigment) and “c” (polymeric binder), in the dry state varies within the range of 1:1:2 ⁇ a:b:c ⁇ 1:4:5, more preferably within the range 1:1:3 ⁇ a:b:c ⁇ 1:3.5:3.5.
  • the layer of glaze of the paper article object of the present invention comprises:
  • the layer of glaze of the paper article, object of the present invention comprises
  • the layer of glaze is carried out on the paper support by means of glazing processes known in the state of the art which comprise the application of a glazing composition on one or both sides of a paper support.
  • the layer of glaze is generally applied to the paper support in bobbin, which at the end of the processings can be cut to produce sheets having the desired dimensions.
  • bobbin and “sheet” are therefore used alternatively.
  • the application of the glazing composition can be effected by means of a glazing machine of the type known in the state of the art (for example, with an air blade or threaded rod) capable of uniformly distributing layers having a variable thickness of a glazing composition on one or both surfaces of a paper support.
  • a glazing machine of the type known in the state of the art (for example, with an air blade or threaded rod) capable of uniformly distributing layers having a variable thickness of a glazing composition on one or both surfaces of a paper support.
  • the glazing composition, object of the present invention is an aqueous dispersion comprising, in addition to the ingredients described above (organic matting agent, natural pigment and polymeric binder), other possible additive compounds of the type known to experts in the field, such as for example thickening compounds, dispersing agents, insolubilizing agents, wetting agents, dyes, bleaches, pH regulators.
  • ingredients described above organic matting agent, natural pigment and polymeric binder
  • other possible additive compounds of the type known to experts in the field such as for example thickening compounds, dispersing agents, insolubilizing agents, wetting agents, dyes, bleaches, pH regulators.
  • the ingredients of the glazing composition, object of the present invention are mixed with each other in both the solid state (in granules, flakes or powder) and in the form of solutions or aqueous dispersions, for example, with the help of a high-velocity disperser of the type known to experts in the field.
  • the glazing composition preferably has a viscosity varying within the range of 300-500 cps (determined with Brookfield viscosimeters, according to the method ISO 2555) and a dry residue value varying from 30% to 40% by weight with respect to the overall weight of the glazing composition.
  • the pH of the glazing solution preferably ranges from 7.5 to 9.5, more preferably from 8 to 9.
  • pH regulator compounds such as caustic soda or ammonia
  • the glazing composition is generally prepared by dispersing the organic matting agent in water.
  • the mineral pigments and a dispersing agent are added to the dispersion thus obtained and mixing is then effected until the total homogenization of the fillers.
  • the application of the layer of glaze can be effected in the same production line as the paper support, for example, in a processing unit situated at the end of the continuous machine itself which produces the paper support wound in bobbins.
  • the paper support Before spreading the glazing composition, the paper support can be subjected to possible pretreatment processings such as, for example, calendering, to obtain the most adequate smoothness degree for the surface of the support to be glazed.
  • pretreatment processings such as, for example, calendering
  • the glazing composition is then spread on a surface of the paper support, or on both of its surfaces, in such a quantity as to have from 5 g/m 2 to 15 g/m 2 of glaze, in the dry state, per glazing side.
  • the paper support on which a homogeneous and uniform layer of glazing composition has been applied is then subjected to heating in order to evaporate the water contained in the glazing composition and crosslink the polymer binder, thus fixing the layer of glaze to the paper support.
  • the heating of the paper support and layer of glaze is preferably effected in two consecutive and continuous heating phases.
  • the paper support with the layer of glazing composition applied is heated using a hot air flow at a temperature of about 100-120°C. Heating at this temperature causes the removal of most of the water contained in the glazing composition.
  • the paper support leaving the first heating phase is heated to a temperature ranging from 250°C to 300°C, in order to complete the evaporation of the water and obtain the cross-linking (polymerization) of the polymeric binder.
  • the layer of glaze is permanently fixed to the paper support.
  • the overall duration of the two heating phases can vary from 5 seconds to 2 minutes approximately, in relation to the quantity of water to be eliminated and the thickness of the layer of glaze applied, in addition to the performance of the drying and polymerization ovens.
  • the glazed paper article thus obtained is cooled, for example by passage on cooling cylinders of the type generally used in the production industry of glazed paper.
  • the paper Once the paper has been cooled, it is available for the subsequent operations, such as for example, winding into rolls (bobbins), cutting and packaging.
  • the glazed paper article which can be obtained with the process described above has a Bendtsen smooth index value of the glazed surface varying within the range of 100-240 ml/min, preferably 150-220 ml/min.
  • the Cobb index value relating to the water absorption is lower than 25 g/m 2 , preferably lower than 20 g/m 2 , more preferably lower than 18 g/m 2 .
  • the glazed paper articles, object of the present invention can be produced in various colours, white and black.
  • the surface of the layer of glaze has a high opacity degree and contemporaneously a pleasant feel.
  • the specific composition of the layer of glaze in fact, makes the surface of the article smooth and velvety.
  • the particular glazing composition prepared by the Applicant also has the property of guaranteeing a high printing quality with the usual printing techniques known in the state of the art.
  • the layer of glaze obtained is scratch-resistant and, if touched with the hands, shows fingerprints less evidently than the highly opaque glazed paper known in the state of the art.
  • the surface of the glazed paper article obtained with the present invention has a good sliding degree (low entrainment resistance), which facilitates its preparation on an industrial scale and use in printing.
  • a first deep black glazing composition (CP1) according to the present invention was prepared by mixing the following ingredients in the following weight ratios (parts by weight referring to each component in the dry state)
  • a second white glazing composition (CP2) according to the present invention was prepared by mixing the following ingredients in the following weight ratios (parts by weight referring to each component in the dry state)
  • a third ivory-coloured glazing composition (CP3) according to the present invention was prepared by mixing the following ingredients in the following weight ratios (parts by weight referring to each component in the dry state)
  • compositions CP1, CP2 and CP3 also contain water in such a quantity as to have a dry residue value of the composition equal to 35% by weight and their pH values were regulated to a value of 8.5.
  • thermoplastic compositions were prepared by mixing the ingredients in a high-velocity disperser (of the Kedymill type) until complete homogenization.
  • compositions were applied by means of an air-blade spreading machine on one or both sides of four paper supports having variable grammages from 120 g/m 2 to 340 g/m 2 .

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  • Paper (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
EP10186814.9A 2009-10-19 2010-10-07 Papier satiné imprimable et son procédé de fabrication Active EP2314766B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10186814T PL2314766T3 (pl) 2009-10-19 2010-10-07 Satynowany wyrób papierniczy dający się zadrukowywać i sposób jego wytwarzania

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI2009A001794A IT1396024B1 (it) 2009-10-19 2009-10-19 Articolo cartaceo patinato stampabile e relativo procedimento di fabbricazione

Publications (2)

Publication Number Publication Date
EP2314766A1 true EP2314766A1 (fr) 2011-04-27
EP2314766B1 EP2314766B1 (fr) 2013-12-04

Family

ID=41718345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10186814.9A Active EP2314766B1 (fr) 2009-10-19 2010-10-07 Papier satiné imprimable et son procédé de fabrication

Country Status (3)

Country Link
EP (1) EP2314766B1 (fr)
IT (1) IT1396024B1 (fr)
PL (1) PL2314766T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2756129A1 (fr) * 2011-09-15 2014-07-23 Imerys Pigments, Inc. Compositions comprenant du kaolin traité par un polymère à base de styrène et procédés apparentés
IT202200010124A1 (it) * 2022-05-16 2023-11-16 Gruppo Cordenons Spa Materiale cartaceo in foglio con aspetto superficiale luccicante e riflettente
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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1457374A (en) * 1973-11-20 1976-12-01 Holtzmann Cie Ag E Embossable single-coated or multicoated print carrier and a pro- cess for its manufacture
US20040023004A1 (en) * 1999-07-09 2004-02-05 Raisio Chemicals Ltd. Surface size composition
US20040058166A1 (en) * 2002-09-19 2004-03-25 Fuji Photo Film Co., Ltd. Powder-coated support and production method thereof
EP1431457A1 (fr) * 2002-12-20 2004-06-23 GRUPPO CORDENONS S.p.A. Matériau en papier présentant un aspect visuel et un toucher de plastic, et procédé
EP2103736A1 (fr) * 2008-03-18 2009-09-23 Agfa-Gevaert Papier imprimable, processus de production de papier imprimable et utilisation associée

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1457374A (en) * 1973-11-20 1976-12-01 Holtzmann Cie Ag E Embossable single-coated or multicoated print carrier and a pro- cess for its manufacture
US20040023004A1 (en) * 1999-07-09 2004-02-05 Raisio Chemicals Ltd. Surface size composition
US20040058166A1 (en) * 2002-09-19 2004-03-25 Fuji Photo Film Co., Ltd. Powder-coated support and production method thereof
EP1431457A1 (fr) * 2002-12-20 2004-06-23 GRUPPO CORDENONS S.p.A. Matériau en papier présentant un aspect visuel et un toucher de plastic, et procédé
EP2103736A1 (fr) * 2008-03-18 2009-09-23 Agfa-Gevaert Papier imprimable, processus de production de papier imprimable et utilisation associée

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2756129A1 (fr) * 2011-09-15 2014-07-23 Imerys Pigments, Inc. Compositions comprenant du kaolin traité par un polymère à base de styrène et procédés apparentés
EP2756129A4 (fr) * 2011-09-15 2015-01-28 Imerys Pigments Inc Compositions comprenant du kaolin traité par un polymère à base de styrène et procédés apparentés
US9903072B2 (en) 2011-09-15 2018-02-27 Imerys Usa, Inc. Compositions comprising kaolin treated with a styrene-based polymer and related methods
IT202200010124A1 (it) * 2022-05-16 2023-11-16 Gruppo Cordenons Spa Materiale cartaceo in foglio con aspetto superficiale luccicante e riflettente
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
WO2023222572A1 (fr) * 2022-05-16 2023-11-23 Gruppo Cordenons S.P.A. Matériau en feuille de papier présentant un aspect de surface scintillant et réfléchissant
WO2023222566A1 (fr) * 2022-05-16 2023-11-23 Gruppo Cordenons S.P.A. Matériau de feuille de papier à effet tactile de type plastique et son procédé de fabrication

Also Published As

Publication number Publication date
IT1396024B1 (it) 2012-11-09
PL2314766T3 (pl) 2014-05-30
EP2314766B1 (fr) 2013-12-04
ITMI20091794A1 (it) 2011-04-20

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