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1. WO2020095154 - BOOK PRINTING PAPER

Publication Number WO/2020/095154
Publication Date 14.05.2020
International Application No. PCT/IB2019/059284
International Filing Date 30.10.2019
IPC
D21H 21/16 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
21Non-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
14characterised by function or properties in or on the paper
16Sizing or water-repelling agents
D21H 19/54 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
19Coated paper; Coating material
36Coatings with pigments
44characterised by the other ingredients, e.g. the binder or dispersing agent
54Starch
D21H 19/56 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
19Coated paper; Coating material
36Coatings with pigments
44characterised by the other ingredients, e.g. the binder or dispersing agent
56Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
D21H 19/72 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
19Coated paper; Coating material
72Coated paper characterised by the paper substrate
D21H 19/84 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
19Coated paper; Coating material
80Paper comprising more than one coating
84on both sides of the substrate
D21H 23/28 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
23Processes or apparatus for adding material to the pulp or to the paper
02characterised by the manner in which substances are added
22Addition to the formed paper
24during paper manufacture
26by selecting point of addition or moisture content of the paper
28Addition before the dryer section, e.g. at the wet end or press section
Applicants
  • STORA ENSO OYJ [FI]/[FI]
Inventors
  • HYYTIÄINEN, Juhani
  • KAUPPINEN, Raino
  • OUTINEN, Antti
Agents
  • KLING, Susanna
Priority Data
1851379-606.11.2018SE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) BOOK PRINTING PAPER
(FR) PAPIER D'IMPRESSION DE LIVRE
Abstract
(EN)
The present invention provides a book paper suitable for both inkjet and offset printing. The inventive printing paper comprises a base substrate with a grammage of below 100 gsm comprising at least 50 wt% mechanical cellulosic pulp fibers and having a total filler content of below 15 wt%. The substrate is surface treated with a composition comprising pigments in a range of 15 –30 wt%, starch in a range of 20 – 40 wt%, latex in a range of 10 –20 wt% and a multivalent metal salt in a range of 10 –30 wt%.
(FR)
La présente invention concerne un papier de livre approprié pour une impression à jet d'encre et en offset. Le papier d'impression selon l'invention comprend un substrat de base ayant un grammage inférieur à 100 g/m2 comprenant au moins 50 % en poids de fibres de pâte cellulosique mécanique et ayant une teneur totale en charge inférieure à 15 % en poids. Le substrat est traité en surface avec une composition comprenant des pigments dans une plage de 15 à 30 % en poids, de l'amidon dans une plage de 20 à 40 % en poids, du latex dans une plage de 10 à 20 % en poids et un sel métallique multivalent dans une plage de 10 à 30 % en poids.
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