EP0710306B1 - Papier couche pour rotatives a bobines et son procede de fabrication - Google Patents

Papier couche pour rotatives a bobines et son procede de fabrication Download PDF

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Publication number
EP0710306B1
EP0710306B1 EP94924742A EP94924742A EP0710306B1 EP 0710306 B1 EP0710306 B1 EP 0710306B1 EP 94924742 A EP94924742 A EP 94924742A EP 94924742 A EP94924742 A EP 94924742A EP 0710306 B1 EP0710306 B1 EP 0710306B1
Authority
EP
European Patent Office
Prior art keywords
coating
base paper
weight
coating base
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.)
Expired - Lifetime
Application number
EP94924742A
Other languages
German (de)
English (en)
Other versions
EP0710306A1 (fr
Inventor
Thomas Greve
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 Publication Paper AG
Original Assignee
Stora Publication Paper 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 Publication Paper AG filed Critical Stora Publication Paper AG
Publication of EP0710306A1 publication Critical patent/EP0710306A1/fr
Application granted granted Critical
Publication of EP0710306B1 publication Critical patent/EP0710306B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments

Definitions

  • the present invention relates to a bilateral coated web printing paper, especially for the gravure that is on a mineral Wood-containing filler Coating base paper one with a knife squeegee equalized, mineral pigment and Has dash containing binder.
  • the invention further relates to a method for Production of coated roll printing paper.
  • LWC light weight coated
  • ULWC light-light weight coated or ultra light weight coated
  • Standard LWC papers use one Knife spreading device, however, in this respect unproblematic than the ones used here Coating base papers already because of their low Filler content of approx. 6 to 8% by weight have higher strength.
  • Adjustment of the Grinding degrees and grinding conditions is also one Strength optimization possible.
  • DE-A-36 31 835 relates to a method for Manufacture of yellowing-resistant special papers, especially of papers intended for special Wallpaper, e.g. B. with a PVC foam application or should be used for release papers.
  • the Coating base paper to be used consists of selected types of pulp in a particular Mixing ratio. According to this Scripture also a pigmented surface application provided and u. a. also one Knife coating device proposed. The Production of coated web printing paper, especially of wood-containing web printing papers is not addressed in this document.
  • WO-A-92/22016 relates to a sheet-shaped copy paper with a basis weight of 80 to 200 g / m 2 , 12 to 18 g / m 2 being accounted for by a pigmented coating applied to at least one side.
  • a pigmented coating applied to at least one side.
  • Surface sizing of the base paper is mentioned as an example.
  • the high-quality fibrous compositions disclosed here, the mass per unit area of the specified copy paper and the high coat weight are not transferable to the field of web printing papers.
  • DE-A-37 30 887 specifies a process for improving the printability of paper, in which a coating base paper, in particular a wood-containing printing paper, which in most cases is highly satinized and has a weight per unit area of at least 30 g / m 2 , preferably has more than 35 g / m 2 , a line consisting of a mineral pigment and a cationic aqueous polymer dispersion of a paper sizing agent with a glass transition temperature of 5 to 80 ° C and a surface-active substance and / or a polymeric dispersant which disrupts the formation of surface sizing an amount of 0.5 to 4 g / m 2 is spread.
  • Knife coating devices, speed sizers and short dwell coaters can be used as coating devices. Due to the relatively low application weight, which is, for example, only 1 g / m 2 and page and preferably 1 to 2.5 g / m 2 and page, a satisfactory coverage of the surface of the coating base paper is not ensured, so that improved optical properties, however not always satisfactory printing properties occur.
  • the object of the present invention is to achieve this based on an inexpensive to manufacture coated web printing paper, especially for the gravure, to provide that over good opacity, sufficient whiteness and one has good printability.
  • the invention seeks to Provide roll printing paper that at in approximately the same mass per unit area in its quality corresponds to the standard LWC papers, however no primer or preparation needed.
  • Another object of the invention is Development of a procedure with which the Roll paper outlined above can be manufactured.
  • the invention therefore provides a web printing paper coated on both sides, in particular for rotogravure printing, which has on a mineral filler containing base paper a single line with a knife doctor blade containing pigment and binder for receiving the printing ink and which is characterized in that the base paper - related on its basis weight - contains more than 18% by weight of filler, the coat applied directly to the coating base paper has a basis weight of> 4 to 8 g / m 2 and page and the coat - calculated as dry weight fractions - 4 to 10% by weight of binder, based on 100 parts by weight of pigment.
  • the line preferably has a mass per unit area of 4.5 to 7 g / m 2 and side, very particularly preferably not more than 6 g / m 2 .
  • the filler content of the coating base paper is preferably up to 40% by weight, in particular up to 35% by weight.
  • the coating base paper preferably calcium carbonate, kaolin and talc or a mixture of these fillers, usual to improve retention Retention aids can be used.
  • cationic starch can be added be, preferably in an amount of 0.3 to 0.8% by weight, based on the dry weight fractions of the Overall fabric. Due to the high filler content the coating base paper in its suction effect reduced so that knocking away the wet As far as possible the coating color in the coating base paper is excluded.
  • the fiber of the Coating base paper preferably consists of Pulp and wood pulp fibers, however, can up to 25% by weight of recycled fibers have been added.
  • the basis weight of the coating base paper and the stroke weight in a given Ratio is preferably Ratio of coating base weight to Line weight in the range of 1: 0.2 to 1 : 0.4, very particularly preferably in the range of 1: > 0.2 to 1: 0.35.
  • coating base papers with a basis weight of 30 to 65 g / m 2 are particularly suitable, in particular coating base papers which have a density of> 0.7 to ⁇ 0.8 g / cm 3 .
  • the coating base paper preferably has one Tear length in the longitudinal direction of at least 3,500 m and not more than 5,500 m while in Transverse direction the tear length in the range of 1,000 should be up to 1,900 m.
  • the binder of the stroke consists of a Resin, which is in the form of a coating color anionic aqueous dispersion is present.
  • a process for producing the roll printing paper coated on both sides, in which a coating base containing pigment and binder is applied to a coating base paper containing mineral filler to achieve a single coat that absorbs the printing ink, leveled with a knife doctor blade and then dried, the process being characterized in this way that the coating base paper, based on its basis weight, contains more than 18% by weight of filler and the doctor blade pressure is set to 1.3 to 2.0 bar, so that a line with a basis weight of> 4 to 8 g / is applied to the coating base paper m 2 and side, calculated as dry weight fractions, is applied.
  • a coating color is used which, calculated as a dry weight fraction, contains 4 to 10% by weight of binder, based on 100 parts by weight of pigment.
  • the solids content of the is preferably Coating color at not more than 60% by weight, preferably not below 40% by weight and less than 55% by weight, very particularly preferably less than 50% by weight.
  • the filler content of the Coating base paper the type of filler, the Basis weight, density and tearing length of the Coating base paper apply to the process corresponding information, as described above for the preferred embodiments of the roll printing paper according to the invention made were.
  • Doctor knife makes it possible Coating base paper, which is due to its high mineral filler content over a relative has low strength, easily too to brush.
  • the high one Filler content of the coating base paper already an extraordinarily good equalization of the Coating base paper surface so that in connection with the stroke applied, despite this being relative low order weight, the Coating base paper surface is well covered, whereby due to the contact pressure of 1.3 doctor knife set up to 2.0 bar Replenishment of those still existing in the base paper Indentations with coating slip are made, on the other hand, a spatula effect, i. H. a Scratching the bumps of paint or tearing open the trained Coating layer does not occur.
  • LDTA long dwell time applicator
  • SDTA short dwell time facilities
  • Coating colors can be used according to the invention be the one for gravure printing provided roll paper a Binder content of 4 to 10% by weight - based on the pigment of the dried stroke - included. Kaolin and / or talcum or Calcium carbonate or a mixture of Calcium carbonate and talc are used.
  • Binders are preferred Plastic dispersions used, their particles are anionically charged, especially based on Acrylate and based on polyvinyl acetate, Butadiene styrene, or their copolymers, and Mixtures of these types of plastic dispersion.
  • a filler mixture consisting of 50% by weight of kaolin and calcium carbonate and furthermore cationic starch and a retention aid are added to a fiber mixture of 66% by weight pulp and 34% by weight wood pulp.
  • a coating base paper with a filler content of 30% is produced from the fiber / filler mixture.
  • the cationic starch added corresponds to a proportion of 0.5% by weight, based on dry weight proportions (otro) of the total substance.
  • the coating base paper has a basis weight of 40 g / m 2 .
  • a coating base paper of 35 g / m 2 was produced, but in which the filler content was only 7% by weight.
  • the coating base paper produced was coated under the same machine conditions as specified above for the example according to the invention, but with a coat of a basis weight of 7 g / m 2 being applied to each side.
  • the paper produced corresponds to a commercially available LWC paper for rotogravure printing.
  • the expression showed none Blotchiness, the quality of expression can be considered comparably quiet compared to a standard LWC quality be designated. The same applies to the formation (shining through).
  • the number of "missing dots" was compared to comparable to a standard LWC quality.

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  • Paper (AREA)
  • Making Paper Articles (AREA)

Claims (22)

  1. Papier sans fin couché sur les deux faces, approprié en particulier pour l'héliogravure rotative, lequel papier présente, sur un support de couche contenant une charge minérale, une simple couche renfermant un pigment et un liant, égalisée par une racle et destinée à recevoir l'encre d'imprimerie, caractérisé
    en ce que le support de couche contient, rapporté à la masse par unité de surface, plus de 18 % en poids de charge,
    en ce que la simple couche appliquée directement sur le support de couche a une masse par unité de surface de plus de 4 à 8 g par m2 et par face, et
    en ce que la couche contient, exprimé en parties de matières sèches, de 4 à 10 % en poids de liant pour 100 parties en poids de pigment.
  2. Papier sans fin couché sur les deux faces conforme à la revendication 1, caractérisé en ce que la couche a une masse par unité de surface de 4,5 à 7 g par m2 et par face.
  3. Papier sans fin couché sur les deux faces conforme à une des revendications 1 et 2, caractérisé en ce que le support de couche a une teneur en charge pouvant atteindre 40 % en poids.
  4. Papier sans fin couché conforme à une des revendications 1 à 3, caractérisé en ce que le support de couche a une teneur en charge pouvant atteindre 35 % en poids.
  5. Papier sans fin couché conforme à une des revendications 1 à 4, caractérisé en ce que la charge du support de couche est du kaolin, du talc, du carbonate de calcium ou un mélange de ceux-ci.
  6. Papier sans fin couché sur les deux faces conforme à une des revendications 1 à 5 caractérisé en ce que le rapport de la masse par unité de surface du support de couche à la masse par unité de surface des couches appliquées sur les deux faces est compris dans l'intervalle allant de 1 : 0,2 à 1 : 0,4.
  7. Papier sans fin couché sur les deux faces conforme à une des revendications 1 à 6, caractérisé en ce que le support de couche a une masse par unité de surface de 30 à 65 g par m2.
  8. Papier sans fin couché sur les deux faces conforme à une des revendications 1 à 7, caractérisé en ce que le support de couche a une masse volumique allant de plus de 0,7 à moins de 0,8 g/cm3.
  9. Papier sans fin couché sur les deux faces conforme à une des revendications 1 à 8, caractérisé en ce que le support de couche a une longueur de rupture longitudinale/transversale allant de 3 500/1 000 à 5 500/1 900 m.
  10. Papier sans fin couché sur les deux faces conforme à une des revendications 1 à 9, caractérisé en ce que la couche contient, comme liant, une résine synthétique présente dans l'enduit de couchage sous forme d'une dispersion anionique dans l'eau.
  11. Procédé de fabrication de papier sans fin couché sur les deux faces, dans lequel on applique, dans le but d'obtenir une simple couche destinée à recevoir l'encre d'imprimerie, sur un support de couche contenant une charge minérale, un enduit de couchage contenant un pigment et un liant, on égalise avec une racle puis on sèche, lequel procédé est caractérisé
    en ce que le support de couche contient, rapporté à la masse par unité de surface, plus de 18 % en poids de charge,
    en ce que la pression de la racle est ajustée à une valeur comprise entre 1,3 et 2,0 bars de manière à ce qu'une couche ayant une masse par unité de surface de plus de 4 g à 8 g de matières sèches par m2 et par face soit appliquée sur le support de couche, et
    en ce que l'on utilise un enduit de couchage contenant, comme matières sèches, de 4 à 10 % en poids de liant pour 100 parties en poids de pigment.
  12. Procédé conforme à la revendication 11, caractérisé en ce que l'on applique un enduit de couchage ayant une teneur en matières solides ne dépassant pas 60 % en poids.
  13. Procédé conforme à une des revendications 11 et 12, caractérisé en ce que l'on applique sur le support de couche une couche ayant une masse par unité de surface de 4,5 à 7 g/m2.
  14. Procédé conforme à une des revendications 11 à 13, caractérisé en ce que l'on utilise un support de couche ayant une teneur en charge pouvant atteindre 40 % en poids.
  15. Procédé conforme à une des revendications 11 à 14, caractérisé en ce que l'on utilise un support de couche ayant une teneur en charge pouvant atteindre 35 % en poids.
  16. Procédé conforme à une des revendications 11 à 15, caractérisé en ce que l'on utilise un support de couche dans lequel la charge est du kaolin, du talc, du carbonate de calcium ou un mélange de ces charges.
  17. Procédé conforme à une des revendications 11 à 16, caractérisé en ce que l'on applique sur les deux faces du support de couche une quantité totale d'enduit telle que le rapport de sa masse par unité de surface par rapport à la masse par unité de surface du support de couche soit compris dans l'intervalle allant de 0,2 : 1 à 0,4 : 1.
  18. Procédé conforme à une des revendications 11 à 17, caractérisé en ce que l'on utilise un support de couche ayant une masse par unité de surface de 30 à 65 g/m2.
  19. Procédé conforme à une des revendications 11 à 18, caractérisé en ce que l'on utilise un support de couche ayant une masse volumique de plus de 0,7 à moins de 0,8 g/cm3.
  20. Procédé conforme à une des revendications 11 à 19, caractérisé en ce que l'on utilise un support de couche ayant une longueur de rupture longitudinale/transversale comprise dans un intervalle allant de 3 500/1 000 m à 5 500/1 900 m.
  21. Procédé conforme à une des revendications 11 à 20, caractérisé en ce que l'enduit de couchage utilisé contient, comme liant, une dispersion aqueuse anionique d'une résine synthétique.
  22. Procédé conforme à une des revendications 11 à 21, caractérisé en ce que le support de couche subit un lissage.
EP94924742A 1993-07-17 1994-07-12 Papier couche pour rotatives a bobines et son procede de fabrication Expired - Lifetime EP0710306B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4324028 1993-07-17
DE4324028A DE4324028C1 (de) 1993-07-17 1993-07-17 Beidseitig gestrichenes Rollendruckpapier und Verfahren zu seiner Herstellung
PCT/EP1994/002276 WO1995002727A1 (fr) 1993-07-17 1994-07-12 Papier couche pour rotatives a bobines et son procede de fabrication

Publications (2)

Publication Number Publication Date
EP0710306A1 EP0710306A1 (fr) 1996-05-08
EP0710306B1 true EP0710306B1 (fr) 1998-01-07

Family

ID=6493079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94924742A Expired - Lifetime EP0710306B1 (fr) 1993-07-17 1994-07-12 Papier couche pour rotatives a bobines et son procede de fabrication

Country Status (8)

Country Link
EP (1) EP0710306B1 (fr)
JP (1) JPH09500177A (fr)
AT (1) ATE161909T1 (fr)
DE (2) DE4324028C1 (fr)
DK (1) DK0710306T3 (fr)
ES (1) ES2111947T3 (fr)
FI (1) FI960176A (fr)
WO (1) WO1995002727A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4411987C2 (de) * 1994-04-08 1996-02-22 Feldmuehle Ag Stora Beidseitig gestrichenes Rollendruckpapier und Verfahren zu seiner Herstellung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2449616C3 (de) * 1974-10-18 1978-05-18 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Verfahren zur Herstellung von gestrichenen Papieren
JPS55152895A (en) * 1979-05-11 1980-11-28 Kanzaki Paper Mfg Co Ltd Production of medium grade coat paper for graphic wheel
DE3631835A1 (de) * 1986-09-19 1988-03-24 Kaemmerer Gmbh Verfahren zur herstellung vergilbungsresistenter papiere, insbesondere gegenueber hitzeeinwirkung
DE3730887A1 (de) * 1987-09-15 1989-03-23 Basf Ag Verfahren zur verbesserung der bedruckbarkeit von papier
SE468531C (sv) * 1991-06-05 1995-04-09 Mo Och Domsjoe Ab Kopieringspapper i arkform
DE4137091C2 (de) * 1991-11-12 1995-06-01 Hoechst Ag Wäßrige Feindispersion eines organophilen Schichtsilikates

Also Published As

Publication number Publication date
EP0710306A1 (fr) 1996-05-08
JPH09500177A (ja) 1997-01-07
DE4324028C1 (de) 1994-12-01
DK0710306T3 (da) 1998-02-09
ES2111947T3 (es) 1998-03-16
ATE161909T1 (de) 1998-01-15
DE59404969D1 (de) 1998-02-12
WO1995002727A1 (fr) 1995-01-26
FI960176A0 (fi) 1996-01-15
FI960176A (fi) 1996-01-17

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