公开(公告)号：US20200181847A1

公开(公告)日：2020-06-11

申请号：US16628565

申请日：2018-07-02

Applicant: Stora Enso Oyj ,  Wetend Technologies Oy

Inventor： Esa SAUKKONEN ,  Isto HEISKANEN ,  Kaj BACKFOLK ,  Jouni MATULA ,  Jussi MATULA

IPC: D21H23/14 ,  D21H23/20 ,  D21C9/00 ,  D21H11/18

Abstract: A method of dosing a nanocellulose suspension in gel phase into a second suspension, wherein the method comprises the steps of: providing said nanocellulose suspension in gel phase; providing said second suspension; bringing said nanocellulose suspension in gel phase in contact with said second suspension; wherein the method comprises a step of subjecting said nanocellulose suspension in gel phase to a shear rate of more than 500 l/s, simultaneously with and/or immediately prior to the step of bringing said nanocellulose suspension in gel phase and said second suspension in contact with each other.

公开(公告)号：US20160060813A1

公开(公告)日：2016-03-03

申请号：US14786124

申请日：2014-04-25

Applicant: WETEND TECHNOLOGIES OY ,  STORA ENSO OYJ

Inventor： Isto HEISKANEN ,  Olavi IMPPOLA ,  Jouni MATULA ,  Jussi MATULA ,  Jari RASANEN ,  Karri TAHKOLA ,  Matti VAKEVAINEN

IPC: D21H21/18 ,  D21H17/67 ,  D21H17/37 ,  D21H17/00

CPC classification number: D21H21/18 ,  C01F11/181 ,  C01F11/182 ,  C01P2004/03 ,  C01P2004/62 ,  D21H17/375 ,  D21H17/63 ,  D21H17/675 ,  D21H17/70 ,  D21H17/73 ,  D21H17/74 ,  D21H21/10 ,  D21H23/04

Abstract: The present invention relates to a 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.

Abstract translation: 本发明涉及一种生产沉淀碳酸钙（PCC）的方法，其中将保留强度增强化学品添加到石灰乳中以形成其混合物，然后将保留/强度增强化学品和石灰的混合物加入到 造纸原料在通向造纸机的流浆箱的管道中，之后将二氧化碳引入造纸原料，并且在两种纤维存在下允许石灰和二氧化碳的牛奶之间的碳酸化反应进行，并且 保留/强度增强化学品。

公开(公告)号：US20150337493A1

公开(公告)日：2015-11-26

申请号：US14758708

申请日：2013-12-30

Applicant: Stora Enso OYJ

Inventor： Isto HEISKANEN ,  Henri KASTINEN ,  Anna KAUPPI ,  Jukka KANKKUNEN ,  Lars AXRUP ,  Cecilia LAND HENSDAL ,  Heidi SAXELL ,  Kaj BACKFOLK

IPC: D21H17/00 ,  D21H11/18 ,  D21H11/04 ,  D21C9/00

CPC classification number: D21C9/007 ,  C08B15/08 ,  C08L1/04 ,  D21D1/20 ,  D21H11/04 ,  D21H11/18 ,  D21H17/005

Abstract: The invention relates to methods of producing microfibrillated cellulose (MFC). According to the invention a fibrous pulp suspension is fibrillated mechanically at a consistency of less than 12.5%, dewatered to raise the consistency of the fibrillated suspension to at least 12.5%, and then subjected in the dewatered condition to further fibrillation. Alternatively an initially fibrillated fibrous pulp suspension may be dewatered and fibrillated in the dewatered condition, after which these dewatering and fibrillating steps are repeated one or more times so that pulp consistency is increased for each fibrillation step. The goals of raising the consistency between subsequent fibrillations are energy saving and an increased aspect ratio in MFC. The invention even comprises uses of the MFC product, e.g. as an additive for papermaking furnish or injection molded plastic composites.

Abstract translation: 本发明涉及微纤化纤维素（MFC）的制造方法。 根据本发明，纤维纸浆悬浮液以小于12.5％的稠度机械原纤化，脱水以将原纤化悬浮液的稠度提高至至少12.5％，然后在脱水条件下进一步原纤化。 或者，最初原纤化的纤维纸浆悬浮液可以在脱水条件下脱水和原纤化，之后将这些脱水和原纤化步骤重复一次或多次，以使每个原纤化步骤的纸浆稠度增加。 提高后续原纤化之间的一致性的目标是在MFC中节能和增加的纵横比。 本发明甚至包括MFC产品的用途，例如， 作为造纸配料或注塑塑料复合材料的添加剂。

公开(公告)号：US20200056334A1

公开(公告)日：2020-02-20

申请号：US16346002

申请日：2017-10-31

Applicant: Stora Enso OYJ

Inventor： Isto HEISKANEN ,  Seppo LAMPAINEN ,  Kaj BACKFOLK ,  Esa SAUKKONEN ,  Jukka KANKKUNEN ,  Christian AULIN ,  Astrid ODEBERG GLASENAPP

IPC: D21H27/40 ,  C09J101/02 ,  C09J103/02 ,  C09J5/06

Abstract: The present invention relates to a corrugated board comprising an adhesive arranged to attach a fluted corrugated medium to a liner wherein the adhesive comprises starch and microfibrillated cellulose. The invention also relates to a method to produce said corrugated board.

公开(公告)号：US20200173109A1

公开(公告)日：2020-06-04

申请号：US16614164

申请日：2018-05-17

Applicant: Stora Enso OYJ

Inventor： Esa SAUKKONEN ,  Isto HEISKANEN ,  Katja LYYTIKÄINEN ,  Kaj BACKFOLK

IPC: D21H11/18 ,  D21H25/04 ,  B32B23/06 ,  B32B23/08 ,  B32B5/06

Abstract: A method of manufacturing a film having an oxygen transmission rate (OTR) value in the range of 0.1 to 200 cc/m2*24 h at 23° C., 50% relative humidity (RH), and an OTR value in the range of 0.1 to 2000 cc/m2*24 h at 38° C. at 85% RH, comprising at least 60% by weight nanocellulose based on the weight of the total amount of fibers in the film, wherein the method comprises the steps of, providing an aqueous suspension comprising said nanocellulose; forming a web from said aqueous suspension; calendering said web at a line load of at least 40 kN/m, and at a temperature of at least 60° C. wherein said film is formed and said web has an OTR value in the range of 50 to 10 000 cc/m2*24 h at 23° C., 50% RH before said calendering step, or more preferably in the range of 500 to 5000 cc/m2*24 h at 23° C., 50% RH before said calendering step.

公开(公告)号：US20190226144A1

公开(公告)日：2019-07-25

申请号：US16316790

申请日：2017-07-03

Applicant: Stora Enso OYJ

Inventor： Kaj BACKFOLK ,  Isto HEISKANEN ,  Esa SAUKKONEN ,  Kirsi PARTTI-PELLINEN ,  Simo SIITONEN

IPC: D21F11/00 ,  D21H17/28 ,  D21H21/36 ,  D21H21/56

Abstract: The present invention relates to a new process for creating foam in a process for manufacturing a paper or board product. According to the present invention, certain types of antimicrobial starch is used in the creation of the foam.