公开(公告)号：FI20095634A

公开(公告)日：2010-12-09

申请号：FI20095634

申请日：2009-06-08

Applicant: UPM KYMMENE CORP ,  STORA ENSO OYJ

Inventor： HENTZE HANS-PETER ,  SIEVAENEN JENNI ,  KETTLE JOHN ,  KULACHENKO ARTEM ,  KORPELA ANTTI ,  KETOJA JUKKA ,  HELLEN ERKKI ,  HJELT TUOMO ,  HILTUNEN JAAKKO ,  TURUNEN EILA ,  SNECK ASKO

IPC: D21F11/00 ,  D21H11/18 ,  D21H27/00

Abstract: The invention relates to a method for manufacturing nanostructured paper or board and a novel paper or board. The method comprises providing a liquid suspension of nanocellulose-containing material, forming a web from the suspension, and drying the web in order to form paper or board. According to the invention the water content of the suspension from which the web is formed is 50% or less by weight of liquids. By means of the invention, energy consumption of paper manufacturing can be significantly reduced.

公开(公告)号：FI20095291A0

公开(公告)日：2009-03-20

申请号：FI20095291

申请日：2009-03-20

Applicant: STORA ENSO OYJ

Inventor： RAESAENEN JARI ,  PENTTINEN TAPANI ,  HARLIN ALI ,  HILTUNEN JAAKKO ,  WIKBERG HANNE ,  TAMMELIN TEKLA

IPC: C08B20090101

Abstract: The invention relates to a method of treating chemical pulp fibers by a polymerizing hydroxy acid, the fibers thus obtained and the products refined from them. In the method, the hydroxy acid reacts with the reactive groups of the fibers in the presence of a catalyst, forming ester bonds. The following units of the same hydroxy acid are oligomerized and/or polymerized to these grafted acid residues. The fibers thus treated and the products refined thereof endure better processing stages that include drawing and stretching than untreated fibers.