公开(公告)号：WO2023073553A1

公开(公告)日：2023-05-04

申请号：PCT/IB2022/060241

申请日：2022-10-25

Applicant: STORA ENSO OYJ

Inventor： LJUNGQVIST, Carl-Henrik ,  HEISKANEN, Isto ,  BACKFOLK, Kaj

IPC: D21H11/14 ,  B32B27/10 ,  B32B29/00 ,  C08J5/18 ,  D21H17/67

Abstract: The present invention relates to a decorative paper or film for a food or liquid packaging laminate, said decorative paper or film comprising: a substrate layer comprising a highly refined cellulose composition comprising fibers obtained from used beverage cartons (UBC), and 1-30 wt% precipitated calcium carbonate (PCC).

公开(公告)号：WO2023073551A1

公开(公告)日：2023-05-04

申请号：PCT/IB2022/060238

申请日：2022-10-25

Applicant: STORA ENSO OYJ

Inventor： LJUNGQVIST, Carl-Henrik ,  BACKFOLK, Kaj

IPC: D21H11/14 ,  B32B27/10 ,  B32B29/00 ,  C08J5/18

Abstract: The present invention relates to a barrier paper or barrier film for a food or liquid packaging laminate, said barrier paper or barrier film comprising: a substrate layer comprising a highly refined cellulose composition comprising fibers obtained from used beverage cartons (UBC), and a polymeric gas barrier coating disposed on at least one side of the substrate layer.

公开(公告)号：WO2023073544A1

公开(公告)日：2023-05-04

申请号：PCT/IB2022/060229

申请日：2022-10-25

Applicant: STORA ENSO OYJ

Inventor： LJUNGQVIST, Carl-Henrik ,  BACKFOLK, Kaj

IPC: D21H11/14 ,  B32B27/10 ,  B32B29/00 ,  C08J5/18

Abstract: The present invention relates to food or liquid packaging laminate comprising fibers obtained from used beverage cartons (UBC), said food or liquid packaging laminate comprising: a paperboard layer, and a barrier layer, wherein said paperboard layer comprises no or substantially no fibers obtained from UBC, wherein said barrier layer comprises a substrate layer comprising a highly refined cellulose composition comprising fibers obtained from UBC, and a polymeric gas barrier coating disposed on at least one side of the substrate layer, and wherein said barrier layer is laminated to said paperboard layer by a polymeric sealing layer arranged between said paperboard layer and said barrier layer.

公开(公告)号：WO2022084835A1

公开(公告)日：2022-04-28

申请号：PCT/IB2021/059591

申请日：2021-10-19

Applicant: STORA ENSO OYJ

Inventor： LJUNGQVIST, Carl-Henrik

IPC: D21H19/84 ,  D21H21/16 ,  D21H21/18 ,  D21H27/10 ,  D21H21/20 ,  B65D71/40 ,  B65D65/42

Abstract: The invention relates to a coated paperboard (10) for beverage container carriers (30) comprising: a paperboard substrate (12), a dispersion coating layer (18, 20) on each side (14, 16) of the paperboard substrate (12), wherein the paperboard substrate (12) comprises wet strength agents in an amount in a range from ≥ 0 wt% to ≤ 0.05 wt%, based on the dry solid content of the substrate (12) and sizing agents for making the paperboard (12) substrate more hydrophobic, wherein the sizing agents are present in an amount of ≥ 0,15 wt%, especially in a range from ≥ 0,15 wt% to ≤ 0.5 wt%, based on the dry solid content of the substrate (12). The invention further relates to a beverage container carrier (30) comprising or being made from the aforementioned coated paperboard (10).

公开(公告)号：WO2023073541A1

公开(公告)日：2023-05-04

申请号：PCT/IB2022/060226

申请日：2022-10-25

Applicant: STORA ENSO OYJ

Inventor： LJUNGQVIST, Carl-Henrik ,  WAHLSTRÖM, Torbjörn ,  BACKFOLK, Kaj

IPC: D21H11/14 ,  B32B27/10 ,  B32B29/00 ,  D21H27/38 ,  B65D65/40

Abstract: The present invention relates to a multiply paperboard for use in food or liquid packaging laminates comprising fibers obtained from used beverage cartons (UBC), said multiply paperboard comprising: a first outer ply, a second outer ply, 5 and at least one intermediate ply sandwiched between the first and second outer ply, wherein said first and second outer ply comprise less than 5 wt% fibers obtained from UBC, and wherein said intermediate ply comprises 5-70 wt% fibers obtained from UBC. The present invention relates to a method for manufacturing such multiply paperboard and a food or liquid packaging laminate comprising such 10 multiply paperboard.

公开(公告)号：WO2016185332A1

公开(公告)日：2016-11-24

申请号：PCT/IB2016/052738

申请日：2016-05-12

Applicant: STORA ENSO OYJ

Inventor： LJUNGQVIST, Carl-Henrik ,  AXRUP, Lars ,  MOBERG, Anders ,  LAND-HENSDAL, Cecilia

IPC: D21H19/52 ,  D21H11/18 ,  B32B29/00 ,  C08L1/02 ,  D21C9/00 ,  D21H19/84 ,  D21H27/30

CPC classification number: D21H11/18 ,  B32B29/005 ,  B32B2255/12 ,  B32B2262/062 ,  B32B2262/065 ,  B32B2262/067 ,  B32B2307/406 ,  B32B2307/54 ,  B32B2307/718 ,  B32B2307/724 ,  C08L1/02 ,  C09D197/02 ,  D21C9/00 ,  D21H19/52 ,  D21H19/84 ,  D21H27/30

Abstract: A paper or board material containing pulp fibre or wood fibre or non-wood fibre and made from a stock solution, having a first and second side, wherein the paper material is provided with a surface coating layer on at least one side thereof, wherein said surface coating layer comprises a mixture of a microfibrillated polysaccharide and a filler, wherein said mixture is applied onto said paper or board material and wherein said microfibrillated polysaccharide is obtained from a portion of a pulp raw material comprising said pulp fiber or wood fiber or non-wood fibre, which pulp raw material subsequently forms said paper or board material and said filler is at least partially redistributed from being introduced into said stock solution to said surface coating layer.

Abstract translation: 一种含有纸浆纤维或木纤维或非木纤维并由原液制成的纸或纸板材料，其具有第一和第二面，其中所述纸材料在其至少一侧上设置有表面涂层，其中所述 表面涂层包括微纤化多糖和填料的混合物，其中将所述混合物施加到所述纸或板材料上，并且其中所述微纤化多糖是从包含所述纸浆纤维或木纤维或非木质纤维的纸浆原料的一部分获得的， 木纤维，该纸浆原料随后形成所述纸或板材料，并且所述填料至少部分地重新分配，以引入所述原料溶液至所述表面涂层。

公开(公告)号：WO2023073552A1

公开(公告)日：2023-05-04

申请号：PCT/IB2022/060240

申请日：2022-10-25

Applicant: STORA ENSO OYJ

Inventor： LJUNGQVIST, Carl-Henrik ,  HEISKANEN, Isto ,  BACKFOLK, Kaj

IPC: D21H11/14 ,  B29B17/02 ,  C08J11/04 ,  D21B1/02 ,  D21B1/32 ,  D21C5/02

Abstract: The present invention relates to a method for manufacturing a highly refined cellulose composition, comprising: i) providing a fiber fraction comprising 20-100 wt% fibers obtained from used beverage cartons (UBC) based on the total dry fiber weight of the fiber fraction, ii) optionally subjecting the fiber fraction to mechanical, chemical or enzymatic pre-treatment, or a combination thereof, iii) subjecting the optionally pre-treated fiber fraction to refining at a consistency in the range of 0.5-30% by weight to a Schopper-Riegler (SR) in the range of 50-100, as determined by standard ISO 5267-1, to obtain the highly refined cellulose composition.

公开(公告)号：WO2023073539A1

公开(公告)日：2023-05-04

申请号：PCT/IB2022/060223

申请日：2022-10-25

Applicant: STORA ENSO OYJ

Inventor： LJUNGQVIST, Carl-Henrik ,  HEISKANEN, Isto ,  BACKFOLK, Kaj

IPC: D21B1/32 ,  D21B1/02 ,  B32B27/10

Abstract: The present invention relates to a method for manufacturing a purified fiber fraction from used beverage carton (UBC), said method comprising the steps: a) subjecting a UBC starting material to a polymer and aluminum film separation method to obtain a UBC polymer and aluminum fraction and a raw UBC fiber fraction; b) optionally subjecting the raw UBC fiber fraction to a coarse screening method to remove coarse particles; c) subjecting the raw UBC fiber fraction to a fine screening method to remove cellulose fines and fine particulate contaminants, wherein the fine screening method comprises at least one fine screening step and at least one dilution step; d) optionally subjecting the fine screened UBC fiber fraction to a bleaching method; e) subjecting the fine screened, and optionally bleached, UBC fiber fraction to an electro-osmosis method to remove further contaminants; f) optionally subjecting the fine screened, and optionally bleached, UBC fiber fraction to a dewatering method to a consistency of at least 20 wt%; and g) subjecting the optionally dewatered UBC fiber fraction to a deactivation method to obtain a purified UBC fiber fraction.

公开(公告)号：WO2023073538A1

公开(公告)日：2023-05-04

申请号：PCT/IB2022/060221

申请日：2022-10-25

Applicant: STORA ENSO OYJ

Inventor： LJUNGQVIST, Carl-Henrik ,  TOLLNERIUS, Lena ,  BACKFOLK, Kaj

IPC: D21B1/32 ,  D21B1/02 ,  B32B27/10

Abstract: The present invention relates to a method for manufacturing a purified fiber fraction from used beverage carton (UBC), said method comprising the steps: a) subjecting UBC starting material to a polymer and aluminum film separation method to obtain a UBC polymer and aluminum fraction and a raw UBC fiber fraction; b) optionally subjecting the raw UBC fiber fraction to a coarse screening method to remove coarse particles; c) subjecting the raw UBC fiber fraction to a fine screening method to remove cellulose fines and fine particulate contaminants, wherein the fine screening method comprises at least one fine screening step and at least one washing step; d) optionally subjecting the fine screened UBC fiber fraction to a washing method to remove further contaminants; e) optionally subjecting the fine screened UBC fiber fraction to a bleaching method; f) subjecting the fine screened, and optionally bleached, UBC fiber fraction to a dewatering method to a consistency of at least wt%; and g) subjecting the dewatered UBC fiber fraction to deactivation to obtain a purified 20 UBC fiber fraction.

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。