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    ЛИСТ С УЛУЧШЕННОЙ СПОСОБНОСТЬЮ СОХРАНЯТЬ НЕСМИНАЕМЫЕ СКЛАДКИ
    55.
    发明专利
    ЛИСТ С УЛУЧШЕННОЙ СПОСОБНОСТЬЮ СОХРАНЯТЬ НЕСМИНАЕМЫЕ СКЛАДКИ 未知

    公开(公告)号：RU2706064C1

    公开(公告)日：2019-11-13

    申请号：RU2018133008

    申请日：2017-02-17

    Applicant: STORA ENSO OYJ

    Inventor： HEISKANEN ISTO ,  SAUKKONEN ESA

    IPC: D21H11/18 ,  D21H11/16 ,  D21H15/00 ,  D21H27/10

    Abstract: Изобретениеотноситсяк целлюлозно-бумажнойпромышленности. Листсоспособностьюсохранятьнесминаемыескладкисодержитцеллюлозныеволокна, изкоторых, поменьшеймере, 75%, предпочтительно, поменьшеймере, 90% илиболеепредпочтительно, поменьшеймере, 95% упомянутыхцеллюлозныхволоконимеютдлинуволокнаменее 1 мм. Отношениепределовпрочностиприрастяжении (MD/CD) пленкипревышает 1,4, предпочтительнопревышает 1,6 инаиболеепредпочтительнопревышает 1,8. Обеспечиваетсяулучшениеспособностисохранятьнесминаемыескладки. 9 н. и 16 з.п. ф-лы, 1 табл.

    A METHOD TO PRODUCE A FIBROUS PRODUCT COMPRISING MICROFIBRILLATED CELLULOSE
    56.
    发明专利
    A METHOD TO PRODUCE A FIBROUS PRODUCT COMPRISING MICROFIBRILLATED CELLULOSE 未知

    公开(公告)号：CA3081654A1

    公开(公告)日：2019-06-27

    申请号：CA3081654

    申请日：2018-12-17

    Applicant: STORA ENSO OYJ

    Inventor： BACKFOLK KAJ ,  HEISKANEN ISTO ,  SAUKKONEN ESA ,  LYYTIKAINEN KATJA

    Abstract: A method for the production of a fibrous product from a fibrous web, wherein the method comprises the steps of: -providing a fibrous suspension comprising a microfibrillated cellulose, wherein the content of the microfibrillated cellulose of said suspension is in the range of 60 to 99.9 weight-% based on total dry solid content, -adding an uncharged, amphoteric or weakly cationic polymer having a molecular weight of at least 50000 g/mol to said suspension, -adding an anionic polymer having a molecular weight of at least 00000 g/mol to said suspension to provide a mixture of said microfibrillated cellulose, said uncharged, amphoteric or weakly cationic polymer and said anionic polymer, 1 -providing said mixture to a substrate to form a fibrous web,wherein the amount of uncharged, amphoteric or weakly cationic polymer in said mixture is in the range of 0.1 to 20 kg/metric ton based on total dry solid content and wherein the amount of anionic polymer in said mixture is in the range of 0.01 to 10 kg/metric ton based on total dry 20 solid content; and -dewatering said fibrous web to form a fibrous product.

    OXYGEN BARRIER FILM AND LAMINATE AND METHODS OF MANUFACTURING THE SAME
    57.
    发明专利
    OXYGEN BARRIER FILM AND LAMINATE AND METHODS OF MANUFACTURING THE SAME 未知

    公开(公告)号：ZA201805574B

    公开(公告)日：2019-06-26

    申请号：ZA201805574

    申请日：2018-08-21

    Applicant: STORA ENSO OYJ

    Inventor： HEISKANEN ISTO ,  SAUKKONEN ESA ,  RIBU VILLE

    Abstract: The invention concerns a fibrous-based oxygen barrier film, which comprises (i) a microfibrillated cellulose (MFC) film, (ii) an oxygen barrier polymer layer, (iii) an optional tie layer, and (iv) an outermost polyolefin layer. The invention even concerns a laminate, in which said multilayer film is combined with a fibrous paper or board base by means of an intermediate polyethylene layer. The oxygen barrier polymerlayer, which preferably is EVOH, and the polyolefin layer are brought by coextrusion onto the MFC film. The film and the laminate according to the invention aim at an improved oxygen barrier in high humidity conditions and have use in oxygen-sensitive food packaging.

    Dosing of nanocellulose suspension in gel phase
    59.
    发明专利
    Dosing of nanocellulose suspension in gel phase 未知

    公开(公告)号：SE1750877A1

    公开(公告)日：2019-01-06

    申请号：SE1750877

    申请日：2017-07-05

    Applicant: STORA ENSO OYJ

    Inventor： SAUKKONEN ESA ,  HEISKANEN ISTO ,  BACKFOLK KAJ

    IPC: B01F23/00 ,  D21H11/18 ,  B01F23/47 ,  B01F33/80 ,  C08L1/02 ,  D21C9/00

    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 1/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.

    A METHOD FOR PRODUCING A FILM HAVING GOOD BARRIER PROPERTIES
    60.
    发明专利
    A METHOD FOR PRODUCING A FILM HAVING GOOD BARRIER PROPERTIES 未知

    公开(公告)号：ZA201800796B

    公开(公告)日：2018-12-19

    申请号：ZA201800796

    申请日：2018-02-07

    Applicant: STORA ENSO OYJ

    Inventor： HEISKANEN ISTO ,  BACKFOLK KAJ ,  SAUKKONEN ESA ,  RUOHONIEMI NINA ,  LYYTIKÄINEN KATJA

    Abstract: The present invention relates to a method for manufacturing a film having an oxygen transmission rate in the range of from 1 cc/m2/24 h to 500 cc/m2/24 h according to ASTM D-3985, at a relative humidity of more than 50% at 25° C., or higher than 75% at 25° C., or higher than 85% at 25° C., wherein the method comprises the steps of: providing a first suspension comprising a microfibrillated cellulose, wherein the dry content of the suspension is in the range of from 0.1 to 10% by weight, adding a wet strength additive to said first suspension, at an amount of from 0.1 to 10 weight-% based on the amount of microfibrillated cellulose (dry/dry), thereby forming a mixture of the microfibrillated cellulose and the wet strength additive, applying said mixture to a substrate to form a fibrous web and drying said web to form said film. The present invention also relates to a film produced according to the method.

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