公开(公告)号：US20230023213A1

公开(公告)日：2023-01-26

申请号：US17756982

申请日：2020-12-15

Applicant: Stora Enso OYJ

Inventor： Tuomo Hjelt ,  Christiane Laine

IPC: D21H21/56 ,  D21H19/52 ,  D21H19/42 ,  B65D65/42

Abstract: The present invention relates to coated paper or paperboard comprising: a paper or paperboard substrate, and a solid closed cell foam coating layer disposed on a surface of said a paper or paperboard substrate, wherein said solid closed cell foam coating layer comprises a nanocellulose, and a foaming agent. The invention further relates to a food container, preferably a cup, comprising such coated paper or paperboard.

公开(公告)号：US20150114581A1

公开(公告)日：2015-04-30

申请号：US14396554

申请日：2013-04-24

Applicant: STORA ENSO OYJ

Inventor： Karita Kinnunen ,  Tuomo Hjelt

IPC: D21H27/30 ,  D21H17/09 ,  D21H21/24

CPC classification number: D21H27/30 ,  B32B5/26 ,  B32B7/02 ,  B32B29/005 ,  B32B2250/26 ,  D21F11/002 ,  D21H11/18 ,  D21H17/09 ,  D21H21/24 ,  D21H21/56

Abstract: The invention relates to a fibrous web product such as paper, and a method for the preparation of such fibrous web. According to the method microfibrillated cellulose (MFC) together with a pulp of a greater fibre length, such as chemithermomechanical pulp (CTMP), are mixed with a foam of water and a sur-factant, the foam is supplied to a forming fabric of a paper or board machine, dewatered by suction of air through the forming fabric, and dried to the final web product. The method brings a high bulk in combination with a high Scott bond value, to provide improved wet and dry tensile strength for the paper and board products.

Abstract translation: 本发明涉及纤维网产品如纸，以及这种纤维网的制备方法。 根据该方法，将微纤化纤维素（MFC）与纤维长度较大的纸浆（例如切割机械纸浆（CTMP））一起混合在泡沫状的水和表面活性剂中，将泡沫供应到成形织物 纸或纸板机，通过成形织物的空气抽吸脱水，并干燥至最终的纸制品。 该方法结合高斯氏粘结值带来高体积，为纸和板产品提供改进的湿和干抗拉强度。

公开(公告)号：US09663901B2

公开(公告)日：2017-05-30

申请号：US14396634

申请日：2013-04-25

Applicant: STORA ENSO OYJ

Inventor： Isto Heiskanen ,  Karita Kinnunen ,  Tuomo Hjelt

IPC: D21H27/30 ,  D21H21/16 ,  D21H11/02 ,  D21H17/22 ,  D21H11/18 ,  D21H21/24 ,  D21H21/56 ,  D21H17/17 ,  D21F11/00

CPC classification number: D21H27/30 ,  D21F11/002 ,  D21H11/02 ,  D21H11/18 ,  D21H17/17 ,  D21H17/22 ,  D21H21/16 ,  D21H21/24 ,  D21H21/56

Abstract: A hydrophobically sized fibrous web layer, preparation of a fibrous web or a fiber-based coating, a multilayer board product having at least a middle layer formed of said fibrous web, as well as use of a heat-sensitive surfactant for said methods and products, whereby microfibrillated cellulose (MFC) and hydrophobic size are brought to a foam with water and the heat-sensitive surfactant, the foam is supplied to a forming fabric of a paper or board machine, dewatered by suction of air through the forming fabric, and dried to a web product. Alternatively the foam may be supplied onto a premade fibrous web and dried to form a coating layer. The hydrophilic functionality of the surfactant contained in the web may be destroyed by heating. Pulp of a greater fiber length, such as CTMP, may be included, to provide improved wet and dry tensile strength for the paper and board products.

公开(公告)号：US20150096700A1

公开(公告)日：2015-04-09

申请号：US14396634

申请日：2013-04-25

Applicant: STORA ENSO OYJ

Inventor： Isto Heiskanen ,  Karita Kinnunen ,  Tuomo Hjelt

IPC: D21H27/30 ,  D21H21/16 ,  D21H11/02 ,  D21H17/22

CPC classification number: D21H27/30 ,  D21F11/002 ,  D21H11/02 ,  D21H11/18 ,  D21H17/17 ,  D21H17/22 ,  D21H21/16 ,  D21H21/24 ,  D21H21/56

Abstract: A hydrophobically sized fibrous web layer, preparation of a fibrous web or a fibre-based coating, a multiplayer board product having at least a middle layer formed of said fibrous web, as well as use of a heat-sensitive surfactant for said methods and products, whereby microfibrillated cellulose (MFC) and hydrophobic size are brought to a foam with water and the heat-sensitive surfactant, the foam is supplied to a forming fabric of a paper or board machine, dewatered by suction of air through the forming fabric, and dried to a web product. Alternatively the foam may be supplied onto a premade fibrous web and dried to form a coating layer. The hydrophilic functionality of the surfactant contained in the web may be destroyed by heating. Pulp of a greater fibre length, such as CTMP, may be included, to provide improved wet and dry tensile strength for the paper and board products.

Abstract translation: 疏水尺寸的纤维网层，纤维网或纤维基涂层的制备，至少由所述纤维网形成的中间层的多层板产品以及用于所述方法和产品的热敏表面活性剂 ，由此将微纤化纤维素（MFC）和疏水性尺寸用水和热敏表面活性剂引入泡沫中，将泡沫供应到纸或纸机的成形织物，通过成形织物的空气抽吸脱水，以及 干燥成网状产品。 或者，泡沫可以供应到预制纤维网上并干燥以形成涂层。 包含在纤维网中的表面活性剂的亲水官能度可能被加热破坏。 可以包括更大纤维长度的纸浆，例如CTMP，以为纸和纸制品提供改善的湿和干拉伸强度。

公开(公告)号：US20220316135A1

公开(公告)日：2022-10-06

申请号：US17597272

申请日：2020-07-02

Applicant: Stora Enso OYJ

Inventor： Harri Setälä ,  Kari Kammiovirta ,  Christiane Laine ,  Ali Harlin ,  Tuomo Hjelt ,  Hanna Koskela ,  Jukka Ketoja

IPC: D21C9/00 ,  D21H11/20

Abstract: The present invention relates to a method for manufacturing modified cellulose fibers for a moldable cellulose fiber based material, said method comprising: a) providing a chemical or semi-chemical wood pulp comprising cellulose fibers, and optionally subjecting the pulp to alkaline extraction to obtain an alkaline extracted pulp; and b) subjecting the pulp or the alkaline extracted pulp of step a) to a chemical treatment with an alkaline solution and/or an organic solvent to obtain a treated pulp or treated alkaline extracted pulp comprising modified cellulose fibers for a moldable cellulose fiber based material. The invention further relates to a moldable cellulose fiber based material comprising at least 70% by dry weight of modified cellulose fibers obtainable by the method.

公开(公告)号：US10364533B2

公开(公告)日：2019-07-30

申请号：US15588045

申请日：2017-05-05

Applicant: STORA ENSO OYJ

Inventor： Isto Heiskanen ,  Karita Kinnunen ,  Tuomo Hjelt

IPC: D21H27/30 ,  D21H21/16 ,  D21H21/24 ,  D21H21/56 ,  D21H17/17 ,  D21H17/22 ,  D21H11/18 ,  D21H11/02 ,  D21H11/00 ,  D21F11/00

Abstract: A hydrophobically sized fibrous web layer, preparation of a fibrous web or a fiber-based coating, a multilayer board product having at least a middle layer formed of said fibrous web, as well as use of a heat-sensitive surfactant for said methods and products, whereby microfibrillated cellulose (MFC) and hydrophobic size are brought to a foam with water and the heat-sensitive surfactant, the foam is supplied to a forming fabric of a paper or board machine, dewatered by suction of air through the forming fabric, and dried to a web product. Alternatively the foam may be supplied onto a premade fibrous web and dried to form a coating layer. The hydrophilic functionality of the surfactant contained in the web may be destroyed by heating. Pulp of a greater fiber length, such as CTMP, may be included, to provide improved wet and dry tensile strength for the paper and board products.

公开(公告)号：US20170335522A1

公开(公告)日：2017-11-23

申请号：US15588045

申请日：2017-05-05

Applicant: STORA ENSO OYJ

Inventor： Isto Heiskanen ,  Karita Kinnunen ,  Tuomo Hjelt

IPC: D21H27/30 ,  D21H21/24 ,  D21H21/16 ,  D21H17/17 ,  D21H11/18 ,  D21H11/02 ,  D21H21/56 ,  D21H17/22 ,  D21F11/00

CPC classification number: D21H27/30 ,  D21F11/002 ,  D21H11/02 ,  D21H11/18 ,  D21H17/17 ,  D21H17/22 ,  D21H21/16 ,  D21H21/24 ,  D21H21/56

Abstract: The invention relates to a hydrophobically sized fibrous web layer, methods for the preparation of a fibrous web or a fibre-based coating, a multilayer board product having at least a middle layer formed of said fibrous web, as well as use of a heat-sensitive surfactant for said methods and products. According to the method microfibrillated cellulose (MFC) and hydrophobic size are brought to a foam with water and the heat-sensitive surfactant, the foam is supplied to a forming fabric of a paper or board machine, dewatered by suction of air through the forming fabric, and dried to a web product. Alternatively the foam may be supplied onto a premade fibrous web and dried to form a coating layer. To prevent gradual degradation of the hydrophobic sizing the hydrophilic functionality of the surfactant contained in the web is finally destroyed by heating. The method uses e.g. AKD-based surfactants with a hydrophilic moiety, which decompose is decomposed by heat, may be used. If pulp of a greater fibre length, such as CTMP, is also included, a high bulk in combination with a high Scott bond value is achieved, to provide improved wet and dry tensile strength for the paper and board products.

公开(公告)号：US09334610B2

公开(公告)日：2016-05-10

申请号：US14396554

申请日：2013-04-24

Applicant: STORA ENSO OYJ

Inventor： Karita Kinnunen ,  Tuomo Hjelt

IPC: D21H27/30 ,  D21H11/18 ,  D21H21/24 ,  D21H21/56 ,  D21F11/00 ,  B32B5/26 ,  B32B7/02 ,  B32B29/00 ,  D21H17/09

CPC classification number: D21H27/30 ,  B32B5/26 ,  B32B7/02 ,  B32B29/005 ,  B32B2250/26 ,  D21F11/002 ,  D21H11/18 ,  D21H17/09 ,  D21H21/24 ,  D21H21/56

Abstract: The invention relates to a fibrous web product such as paper, and a method for the preparation of such fibrous web. According to the method microfibrillated cellulose (MFC) together with a pulp of a greater fiber length, such as chemithermomechanical pulp (CTMP), are mixed with a foam of water and a sur-factant, the foam is supplied to a forming fabric of a paper or board machine, dewatered by suction of air through the forming fabric, and dried to the final web product. The method brings a high bulk in combination with a high Scott bond value, to provide improved wet and dry tensile strength for the paper and board products.

Abstract translation: 本发明涉及纤维网产品如纸，以及这种纤维网的制备方法。 根据该方法，将微纤化纤维素（MFC）与纤维长度较大的纸浆（例如切割机械纸浆（CTMP））一起混合在泡沫状的水和表面活性剂中，将泡沫供应到成形织物 纸或纸板机，通过成形织物的空气抽吸脱水，并干燥至最终的纸制品。 该方法结合高斯氏粘结值带来高体积，为纸和板产品提供改进的湿和干抗拉强度。