EP 1252392 A1 20021030 - UNCOATED PAPER AND BOARD PRODUCTS
Title (en)
UNCOATED PAPER AND BOARD PRODUCTS
Title (de)
NICHT BESCHICHTETES PAPIER UND KARTONPRODUKTION
Title (fr)
PAPIER NON COUCHE ET PRODUITS CARTON
Publication
Application
Priority
- SE 0002006 W 20001017
- SE 9903764 A 19991019
Abstract (en)
[origin: WO0129316A1] A new quality of uncoated paper and board products, such as liquid board or white top liner, of one or more layers with a top layer of bleached chemical pulp is described. The top layer surface has a gloss value of 20-50 %, a coefficient of gloss variation in the wavelength region 3-30 mm of less than 5 %, and a surface roughness (PPS-10) of 2 - 5 mu m. The good printability of the disclosed products makes them useful in the production of packages. The disclosed products are obtainable by a paper making process wherein the calendering of the paper or board is performed with an extended soft nip calender which has a heated, e.g. internally induction heated, roll with a temperature at the surface of 250 to 350 DEG C, and the pressure against the paper board of 5-40 MPa. The calendering operation is optionally preceded by application of steam onto the top of the paper or board web.
IPC 1-7
IPC 8 full level
D21H 11/02 (2006.01); D21G 1/00 (2006.01); D21H 25/04 (2006.01)
CPC (source: EP)
D21G 1/00 (2013.01); D21H 25/04 (2013.01)
Citation (search report)
See references of WO 0129316A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0129316 A1 20010426; AU 1182901 A 20010430; BR 0014845 A 20020702; BR 0014845 B1 20110125; CA 2387739 A1 20010426; CA 2387739 C 20100720; CN 1246528 C 20060322; CN 1387599 A 20021225; DK 1252392 T3 20121022; EP 1252392 A1 20021030; EP 1252392 B1 20120815; ES 2393100 T3 20121218; JP 2003512543 A 20030402; JP 5068407 B2 20121107; PT 1252392 E 20121127; SE 516821 C2 20020305; SE 9903764 D0 19991019; SE 9903764 L 20010420; ZA 200202853 B 20030625
DOCDB simple family (application)
SE 0002006 W 20001017; AU 1182901 A 20001017; BR 0014845 A 20001017; CA 2387739 A 20001017; CN 00814356 A 20001017; DK 00973302 T 20001017; EP 00973302 A 20001017; ES 00973302 T 20001017; JP 2001532290 A 20001017; PT 00973302 T 20001017; SE 9903764 A 19991019; ZA 200202853 A 20020411