公开(公告)号：WO2016097964A1

公开(公告)日：2016-06-23

申请号：PCT/IB2015/059579

申请日：2015-12-14

Applicant: STORA ENSO OYJ

Inventor： AULIN, Christian ,  AXRUP, Lars ,  FLODBERG, Göran ,  HILLERGREN, Magnus ,  LINDSTRÖM, Tom ,  LJUNGQVIST, Carl-Henrik ,  STRÖM, Göran

IPC: D21H19/34 ,  D21H23/70 ,  B32B29/06 ,  B65D65/42 ,  D21H11/18 ,  D21H23/50 ,  D21H27/10 ,  D21H27/32

CPC classification number: D21H19/34 ,  B32B37/153 ,  B32B2037/243 ,  B32B2317/12 ,  D21H11/18 ,  D21H23/50 ,  D21H23/70 ,  D21H27/10 ,  D21H27/32

Abstract: The present invention relates to process for the production of a coated substrate comprising cellulosic fibres, the process comprising the steps of: i) providing a first substrate comprising cellulosic fibres and having a dry content of less than 50%; ii) applying a coating composition to the first substrate in an amount of more than 5 g/m 2 ,,calculated as dry weight of the coating composition, wherein the coating composition comprises: - microfibrillated cellulose (MFC), and - optionally a water retention agent selected from carboxymethyl cellulose (CMC), anionic polyacrylamide (A-PAM),sodium polyacrylates, polyacrylic acid derivatives, guar gum, alginate, MFC prepared from carboxymethylated fibers, MFC prepared from oxidized fibers, MFC preparedby CMC- functionalised fibers, and/or combinations thereof; and iii) mechanically dewatering the first substrate. The present process provides an energy efficient coating process which can be performed online.

Abstract translation: 本发明涉及生产包含纤维素纤维的涂覆基质的方法，该方法包括以下步骤：i）提供包含纤维素纤维并且干物质含量小于50％的第一基材; ii）以大于5g / m 2的量将涂料组合物施用至所述涂料组合物的干重，其中所述涂料组合物包含： - 微纤化纤维素（MFC），和任选的保水性 选自羧甲基纤维素（CMC），阴离子聚丙烯酰胺（A-PAM），聚丙烯酸钠，聚丙烯酸衍生物，瓜尔胶，藻酸盐，由羧甲基纤维制备的MFC，由氧化纤维制备的MFC，通过CMC官能化纤维制备的MFC和/ 或其组合; 和iii）机械地使第一基底脱水。 本方法提供了能够在线执行的能量效率涂层工艺。

公开(公告)号：WO2018083590A1

公开(公告)日：2018-05-11

申请号：PCT/IB2017/056756

申请日：2017-10-31

Applicant: STORA ENSO OYJ

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

IPC: C09J103/00 ,  B32B3/28 ,  B32B29/08 ,  C08L1/02 ,  C08L3/00 ,  C09J101/00 ,  D21C9/00 ,  D21H11/18

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.

Abstract translation: 本发明涉及一种瓦楞纸板，其包括粘合剂，该粘合剂被布置成将槽纹波纹介质附着到衬垫上，其中该粘合剂包括淀粉和微纤化纤维素。 本发明还涉及生产所述瓦楞纸板的方法。

公开(公告)号：WO2018138702A1

公开(公告)日：2018-08-02

申请号：PCT/IB2018/050551

申请日：2018-01-30

Applicant: STORA ENSO OYJ

Inventor： AXRUP, Lars ,  KNÖÖS, Isabel ,  AULIN, Christian ,  HILLERGREN, Magnus ,  LINDSTRÖM, Tom

IPC: D21H11/18 ,  B32B29/00 ,  D21H23/50 ,  D21H25/14 ,  D21H27/30 ,  D21H21/14

Abstract: The method of the invention relates to a method of manufacturing a fibrous, oxygen barrier film by casting a suspension comprising microfibrillated cellulose onto a non-porous substrate in a number of subsequent steps with intermediate drying. The invention enables an efficient method to manufacture an MFC film by casting technology without the problems of cracks or voids formed in the film. By applying the MFC in several layers, with in-between drying, the distance the water has to diffuse through is shorter, whereby the evaporation is more efficient and the film properties are not negatively affected by the drying.