公开(公告)号：CA2890311C

公开(公告)日：2022-06-21

申请号：CA2890311

申请日：2013-11-06

Applicant: WETEND TECH LTD ,  STORA ENSO OYJ

Inventor： IMPPOLA OLAVI ,  MATULA JOUNI ,  MATULA JUSSI ,  TAHKOLA KARRI ,  HEISKANEN ISTO ,  VAKEVAINEN MATTI ,  RASANEN JARI

IPC: D21H11/18 ,  D21H17/25 ,  D21H17/67 ,  D21H17/70

Abstract: A ply for a paper and paperboard made from a ply substrate material, wherein the ply comprises a hybrid material, in an amount of 1-25 wt-% of the ply, wherein the hybrid material is introduced into a target suspension of the short circulation of a fibrous web forming process of a fibrous web machine, in an in-line process, wherein said target suspension forms the ply substrate material, and the hybrid material comprises an alkaline earth carbonate precipitated onto or into fibers or fibrils of a nanofibrillated polysaccharide.

公开(公告)号：CA2890319C

公开(公告)日：2020-10-20

申请号：CA2890319

申请日：2013-11-06

Applicant: STORA ENSO OYJ ,  WETEND TECH LTD

Inventor： IMPPOLA OLAVI ,  MATULA JOUNI ,  MATULA JUSSI ,  TAHKOLA KARRI ,  HEISKANEN ISTO ,  VAKEVAINEN MATTI ,  RASANEN JARI

IPC: D21H17/70 ,  D21H11/18 ,  D21H17/25 ,  D21H17/67

Abstract: An in-line production method for providing a liquid flow of at least one additive in the short circulation and into the liquid flow of a paper making stock of a fiber web machine by feeding, the liquid flow of the at least one additive to the liquid flow of the short circulation, wherein a suitable amount of a microfibrillated cellulose or nanofibrillated polysaccharide is provided substantially simultaneously with the feeding of liquid flow of the at least one additive.

公开(公告)号：CA2908642C

公开(公告)日：2019-11-05

申请号：CA2908642

申请日：2014-04-25

Applicant: WETEND TECH OY ,  STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  IMPPOLA OLAVI ,  MATULA JOUNI ,  MATULA JUSSI ,  RASANEN JARI ,  TAHKOLA KARRI ,  VAKEVAINEN MATTI

IPC: D21H17/30 ,  C01F11/02 ,  D21H17/00 ,  D21H17/67 ,  D21H17/70 ,  D21H21/10 ,  D21H21/18 ,  D21H23/04

Abstract: The present invention relates toa method of producing precipitated calcium carbonate (PCC) where a retention/strength enhancing chemical is added to milk of lime to form a mixture thereof prior to adding the mixture of the retention/strength enhancing chemical and milk of lime to paper making stock in a pipeline leading to a headbox of a paper making machine, whereafter carbon dioxide is introduced to the paper making stock, and the carbonation reaction between milk of lime and carbon dioxide is allowed to proceed in the presence of both fibres and the retention/strength enhancing chemical.

公开(公告)号：CA2908642A1

公开(公告)日：2014-10-30

申请号：CA2908642

申请日：2014-04-25

Applicant: WETEND TECHNOLOGIES OY ,  STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  IMPPOLA OLAVI ,  MATULA JOUNI ,  MATULA JUSSI ,  RASANEN JARI ,  TAHKOLA KARRI ,  VAKEVAINEN MATTI

IPC: D21H17/30 ,  C01F11/02 ,  D21H17/00 ,  D21H17/67 ,  D21H17/70 ,  D21H21/10 ,  D21H21/18 ,  D21H23/04

Abstract: The present invention relates toa method of producing precipitated calcium carbonate (PCC) where a retention/strength enhancing chemical is added to milk of lime to form a mixture thereof prior to adding the mixture of the retention/strength enhancing chemical and milk of lime to paper making stock in a pipeline leading to a headbox of a paper making machine, whereafter carbon dioxide is introduced to the paper making stock, and the carbonation reaction between milk of lime and carbon dioxide is allowed to proceed in the presence of both fibres and the retention/strength enhancing chemical.

公开(公告)号：CA2996090A1

公开(公告)日：2017-03-02

申请号：CA2996090

申请日：2016-08-23

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  KASTINEN HENRI ,  AXRUP LARS ,  POLLANEN SAIJA ,  KORHONEN JANI ,  SUHONEN PETRI ,  TIAINEN TEEMU ,  VAKEVAINEN MATTI

IPC: D21D1/26 ,  D21C9/00 ,  D21D1/06 ,  D21D1/20 ,  D21H11/18

Abstract: Method for producing microfibrillated cellulose(MFC), wherein the method comprising the steps of: Pre-treating of chemical pulp, such that, the pulp reaches a Schopper-Riegler (SR) value above 50, and refining the pulp, at a consistency of 3-6%, in a refiner with refiner blades, wherein the height of the refiner blades is in the range 2-3mm.

公开(公告)号：CA2890319A1

公开(公告)日：2014-05-15

申请号：CA2890319

申请日：2013-11-06

Applicant: STORA ENSO OYJ ,  WETEND TECHNOLOGIES LTD

Inventor： IMPPOLA OLAVI ,  MATULA JOUNI ,  MATULA JUSSI ,  TAHKOLA KARRI ,  HEISKANEN ISTO ,  VAKEVAINEN MATTI ,  RASANEN JARI

IPC: D21H17/70 ,  D21H11/18 ,  D21H17/25 ,  D21H17/67

Abstract: An in-line production method for providing a liquid flow of at least one additive in the short circulation and into the liquid flow of a paper making stock of a fiber web machine by feeding, the liquid flow of the at least one additive to the liquid flow of the short circulation, wherein a suitable amount of a microfibrillated cellulose or nanofibrillated polysaccharide is provided substantially simultaneously with the feeding of liquid flow of the at least one additive.

公开(公告)号：CA2890311A1

公开(公告)日：2014-05-15

申请号：CA2890311

申请日：2013-11-06

Applicant: WETEND TECHNOLOGIES LTD ,  STORA ENSO OYJ

Inventor： IMPPOLA OLAVI ,  MATULA JOUNI ,  MATULA JUSSI ,  TAHKOLA KARRI ,  HEISKANEN ISTO ,  VAKEVAINEN MATTI ,  RASANEN JARI

IPC: D21H11/18 ,  D21H17/25 ,  D21H17/67 ,  D21H17/70

Abstract: A ply for a paper and paperboard made from a ply substrate material, wherein the ply comprises a hybrid material, in an amount of 1-25 wt-% of the ply, wherein the hybrid material is introduced into a target suspension of the short circulation of a fibrous web forming process of a fibrous web machine, in an in-line process, wherein said target suspension forms the ply substrate material, and the hybrid material comprises an alkaline earth carbonate precipitated onto or into fibers or fibrils of a nanofibrillated polysaccharide.