EP0624213B1 - Tiefdruckfähiges papier - Google Patents

Tiefdruckfähiges papier Download PDF

Info

Publication number
EP0624213B1
EP0624213B1 EP93902211A EP93902211A EP0624213B1 EP 0624213 B1 EP0624213 B1 EP 0624213B1 EP 93902211 A EP93902211 A EP 93902211A EP 93902211 A EP93902211 A EP 93902211A EP 0624213 B1 EP0624213 B1 EP 0624213B1
Authority
EP
European Patent Office
Prior art keywords
weight
coating
rotogravure printing
paper suitable
pigment
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.)
Expired - Lifetime
Application number
EP93902211A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0624213A1 (de
Inventor
Paul-Heinz DÄHLING
Heinz Bettray
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.)
Stora Feldmuehle AG
Original Assignee
Stora Feldmuehle AG
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 Stora Feldmuehle AG filed Critical Stora Feldmuehle AG
Publication of EP0624213A1 publication Critical patent/EP0624213A1/de
Application granted granted Critical
Publication of EP0624213B1 publication Critical patent/EP0624213B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • D21H19/38—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
    • D21H19/42—Coatings with pigments characterised by the pigments at least partly organic

Definitions

  • the present invention relates to a paper capable of gravure printing, comprising at least on one side a line provided for receiving the printing ink, which contains mineral pigment and synthetic resin binders.
  • Gravure-capable papers of the type specified above are known and are used, for. B. used as a print medium for illustrated magazines, mail order catalogs, advertising brochures or packaging material. Most of the time, the papers are coated on both sides, in many cases first using a pre-coat and then the top coat intended to hold the printing ink. Since, as is known, the failure of the printed image in a paper printed by the gravure printing process depends to a large extent on the surface of the coated paper, in particular on the smoothness and flatness of the line, papers intended for gravure printing are usually calendered, usually using so-called supercalenders.
  • hydro- and oxycelluloses have already been used instead of finely ground cellulose fibers as a vegetable filler for the production of art paper or chrome papers.
  • This document does not refer to an improvement in the printability of gravure-capable papers which are provided with a line containing mineral pigments and synthetic resin binders.
  • the object of the present invention is to provide paper capable of gravure printing, in which the printability is improved and in particular in which the number of "missing dots" that occur is significantly reduced.
  • the invention provides an intaglio paper that is at least on one Page has a line intended for receiving the printing ink, which contains mineral pigment and synthetic resin binder, the additional pigment being 5 to 30% by weight of finely ground cellulose fibers based on the total pigment content and 3.5 to 10% by weight of a synthetic resin binder based on the total pigment content contains.
  • 10 to 50% by weight of the synthetic resin binder can be replaced by starch as the binder.
  • the stroke is preferably applied with a doctor knife.
  • both the mineral pigment components and the cellulose fibers are added to the total pigment component.
  • the average fiber length of the cellulose fibers is between 10 and 30 »m.
  • the production of cellulose fibers ⁇ 10 »m is relatively uneconomical due to the grinding effort, whereas a fiber length> 30» m leads to problems when applying the coating, in particular by means of a doctor blade, due to the accumulation of the longer fibers in the coating machine application.
  • the average fiber diameter is preferably in the range from 10 to 20 ⁇ m.
  • the term “line” defines the line that receives the printing ink, often also called the top line.
  • the paper can have a so-called primer, to which the stroke (top coat) is then applied.
  • the information on the binder content is to be understood as an indication of the dry weight proportions.
  • cellulose fibers present in the coating is below 5% by weight, there is no appreciable improvement in printability. Amounts of up to 30% by weight of cellulose fibers have proven to be particularly advantageous, particularly in the production of matt paper. In contrast, a proportion of cellulose fibers in the range from 5 to 15% by weight has been found to be particularly suitable for normally glossy papers.
  • the mineral pigment used is calcium carbonate in an amount of 70 to 85% by weight, to which 15 to 30% by weight of finely ground cellulose fibers are added, whereby complete all information to 100% by weight total pigment.
  • synthetic resin binders e.g. B. aqueous plastic dispersions z. B. based on acrylate or butadiene-styrene, for use.
  • Calcium carbonate in which between 50 and 70% by weight of calcium carbonate particles are ⁇ 2 »m, has proven to be a particularly suitable mineral pigment in the production of so-called matt papers in combination with finely ground cellulose fibers.
  • a line composition in which the mineral pigment consists of kaolin has proven to be suitable for a normally glossy, gravure-printable paper, having a gloss value of 40 to 55% measured according to Lehmann at 75 o makes up the entire pigment content of the coating, while the remaining 5 to 15% by weight of the pigment fraction consist of 5 to 15% by weight of finely ground cellulose fibers.
  • a composition of 10 to 90% by weight calcium carbonate and 90 to 10% by weight kaolin has been found according to a further well-suited embodiment of the invention mineral pigment content 85 to 95 % By weight of the total pigment content and 5 to 15% by weight of finely ground cellulose fibers are added to the mixture of calcium carbonate and kaolin.
  • the pigment content of the coating for a gravure-capable paper having a normal gloss consists of a mixture of calcium carbonate and / or kaolin and talc, these mineral pigments accounting for 85 to 95% by weight of the total pigment content of the coating and the rest 5 to 15% by weight of the pigment fraction consist of 5 to 15% by weight of finely ground cellulose fibers.
  • the pigment content of a gravure-capable paper having a normal gloss is composed of 85 to 95% by weight of a mixture of: 40 to 70 wt.% Calcium carbonate and / or kaolin and 30 to 60% by weight talc together, with the rest 5 to 15% by weight of the pigment fraction from finely ground cellulose fibers consist.
  • An advantage of the above formulation is that the use of calcium carbonate in coating formulations for gravure-sensitive papers is improved, which results in a higher whiteness sets.
  • the gravure-printable papers according to the present invention include the so-called LWC (light-weight-coated) papers with a basis weight (including the line on the front and back) of less than 60 g / m 2, with an application weight of 8 to 12 d / m2 is eliminated.
  • LWC light-weight-coated
  • a primer can preferably be applied, the pigment content of which consists only of calcium carbonate and which is then covered by a top coat according to the invention of 8 to 12 g / m2 on one or both sides.
  • cellulose fibers as a coating component have already been used in the production of so-called pressure-sensitive recording papers to protect the microcapsules containing dye precursors used in these papers in order to protect the microcapsules from premature destruction, but it is due to that Hand that the so-called pressure-sensitive recording papers are not capable of gravure printing, because the sensitive microcapsules would be destroyed during the printing process.
  • the present invention therefore expressly excludes pressure-sensitive recording papers.
  • a coating slip is produced in which the pigment content is made from 58% by weight calcium carbonate, 37% by weight talc and 5% by weight of finely ground cellulose fibers consists.
  • the cellulose fibers have an average fiber length of 20 »m and an average fiber thickness of 15» m.
  • 5% by weight (dry weight fractions, based on the total pigment fraction) of a self-thickening, aqueous synthetic resin dispersion are used as binders.
  • the coating slip is applied with an application weight of 10 g / m2 and side onto a base paper with a basis weight of 37 g / m2 by means of a doctor knife and, after drying, is subjected to a supercalender satin coating in the usual way.
  • a further coating slip is produced in accordance with Example 1, but the pigment content increases 60% by weight of calcium carbonate and 40% by weight of talc consists.
  • the coated paper is applied and produced in accordance with Example 1.
  • a coating slip is produced in which the pigment content 75% by weight calcium carbonate and 25% by weight of finely ground cellulose fibers, as indicated in Example 1. 5% by weight of a synthetic resin binder are used as binders.
  • the coating slip also contains auxiliaries for controlling the water retention capacity in the usual dosage.
  • a base paper of 49 g / m2 which is already provided with a primer, in which the pigment consists of calcium carbonate, in an amount of 8 g / m2 and side
  • the coating slip in an amount of 12 g / m2 and side applied with a squeegee and dried. Then satinizing is carried out in the usual way on a supercalender.
  • a coating slip is produced in which the pigment fraction consists of 90% by weight of kaolin and 10% by weight of finely ground cellulose fibers, as stated for example 1.
  • the amount and type of binder, application weights and production of the paper correspond to the information given in Example 1.
  • Example 3 The procedure is as described above for Example 3, but the pigment fraction consists of 100% by weight of kaolin.
  • the table below shows the values for gloss, smoothness, heliotest and sliding friction coefficient measured on the papers produced.
  • An intaglio printing plate filled with printing ink, the grid area of which has an increasing cell depth, is rolled off with a constant pressure on a test strip.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Paper (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Sheet Holders (AREA)
EP93902211A 1992-01-30 1993-01-15 Tiefdruckfähiges papier Expired - Lifetime EP0624213B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4202598 1992-01-30
DE4202598A DE4202598C1 (hu) 1992-01-30 1992-01-30
PCT/EP1993/000087 WO1993015270A1 (de) 1992-01-30 1993-01-15 Tiefdruckfähiges papier

Publications (2)

Publication Number Publication Date
EP0624213A1 EP0624213A1 (de) 1994-11-17
EP0624213B1 true EP0624213B1 (de) 1995-07-12

Family

ID=6450591

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93902211A Expired - Lifetime EP0624213B1 (de) 1992-01-30 1993-01-15 Tiefdruckfähiges papier

Country Status (7)

Country Link
EP (1) EP0624213B1 (hu)
AT (1) ATE125015T1 (hu)
DE (2) DE4202598C1 (hu)
DK (1) DK0624213T3 (hu)
ES (1) ES2074926T3 (hu)
FI (1) FI114326B (hu)
WO (1) WO1993015270A1 (hu)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009080894A1 (en) * 2007-12-21 2009-07-02 Upm-Kymmene Oyj Method for making organic pigment

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19527161A1 (de) * 1995-07-25 1997-01-30 Sued Chemie Ag Pigmentgemisch und Streichfarbe mit verbesserter Tiefdruckeignung
DK2805986T3 (en) 2009-03-30 2017-12-18 Fiberlean Tech Ltd PROCEDURE FOR THE MANUFACTURE OF NANO-FIBRILLARY CELLULOS GELS
PL2808440T3 (pl) 2009-03-30 2020-01-31 Fiberlean Technologies Limited Sposób wytwarzania zawiesin nanofibrylarnej celulozy
GB0908401D0 (en) 2009-05-15 2009-06-24 Imerys Minerals Ltd Paper filler composition
ES2467694T3 (es) 2010-04-27 2014-06-12 Omya Development Ag Proceso para la fabricación de materiales estructurados usando geles de celulosa nanofibrilares
DK2386683T3 (da) 2010-04-27 2014-06-23 Omya Int Ag Fremgangsmåde til fremstilling af gel-baserede kompositmaterialer
GB201019288D0 (en) 2010-11-15 2010-12-29 Imerys Minerals Ltd Compositions
ES2741514T3 (es) 2015-10-14 2020-02-11 Fiberlean Tech Ltd Material laminado conformable en 3D
US11846072B2 (en) 2016-04-05 2023-12-19 Fiberlean Technologies Limited Process of making paper and paperboard products
BR112018069538B1 (pt) 2016-04-05 2023-01-17 Fiberlean Technologies Limited Produto de papel ou papelão e método de fabricação de um produto de papel ou papelão
CN109312494B (zh) 2016-04-22 2021-06-18 菲博林科技有限公司 包含微原纤化纤维素的纤维和由其制造纤维和非织造材料的方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744662C (de) * 1942-04-03 1944-01-22 Feldmuehle Papier Und Zellstof Verfahren zur Herstellung eines fuer Streichmassen bei Kunstdruck- und Chromopapier geeigneten Binde- und Glaettungsmittels
FR2648488B1 (fr) * 1989-06-15 1991-09-13 Gomez Daniel Charge vegetale poreuse, micronisee, peu dense, de granulometrie controlee et de faibles surfaces specifiques physique et hydraulique; procede de preparation et utilisation
DE3924051A1 (de) * 1989-07-21 1991-01-24 Bayer Ag Verfahren zum weisstoenen von papierstreichmassen
NO903004L (no) * 1989-07-21 1991-01-22 Bayer Ag Fremgangsmaate for hvittoning av papirbestrykningsmasser samt hvittoningspreparater for fremgangsmaaten.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009080894A1 (en) * 2007-12-21 2009-07-02 Upm-Kymmene Oyj Method for making organic pigment

Also Published As

Publication number Publication date
EP0624213A1 (de) 1994-11-17
DE59300352D1 (de) 1995-08-17
DE4202598C1 (hu) 1993-09-02
ES2074926T3 (es) 1995-09-16
FI114326B (fi) 2004-09-30
FI943494A (fi) 1994-07-25
ATE125015T1 (de) 1995-07-15
WO1993015270A1 (de) 1993-08-05
DK0624213T3 (da) 1995-08-21
FI943494A0 (fi) 1994-07-25

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