PAPER PRODUCT AND A METHOD AND A SYSTEM FOR MANUFACTURING FURNISH
    11.
    发明申请
    PAPER PRODUCT AND A METHOD AND A SYSTEM FOR MANUFACTURING FURNISH 审中-公开
    纸制品和制造家具的方法和系统

    公开(公告)号:US20140338849A1

    公开(公告)日:2014-11-20

    申请号:US14357912

    申请日:2012-11-15

    Abstract: The invention relates to a method for manufacturing furnish for a paper product, wherein the manufactured furnish contains fibril cellulose material. The method includes introducing first raw material to a system, which first raw material includes cellulose pulp, introducing second raw material to the system, which second raw material includes cellulose fibers that are oxidized by nitroxyl-mediated oxidation of hydroxyl groups of the cellulose, conveying the first raw material and the second raw material to a refiner, and refining and mixing the first raw material and the second raw material in the refiner in order to produce furnish including fibril cellulose material. In addition, this invention relates to a system for manufacturing furnish and to a paper product.

    Abstract translation: 本发明涉及一种用于制造纸制品配料的方法,其中所制造的配料包含原纤维纤维素材料。 该方法包括将第一原料引入到系统中,该第一原料包括纤维素纸浆,将第二原料引入到该系统中,该第二原料包括由硝酰氧基介导的氧化纤维素的羟基氧化的纤维素纤维,输送 将第一原料和第二原料输送到精制机中,并在精制机中精炼和混合第一原料和第二原料,以生产包括原纤维纤维素材料的配料。 此外,本发明涉及一种用于制造配料和纸制品的系统。

    Method and device for monitoring the quality of nanofibrillar cellulose

    公开(公告)号:US10119919B2

    公开(公告)日:2018-11-06

    申请号:US15321204

    申请日:2015-04-27

    Abstract: One embodiment provides a method for monitoring the quality of nanofibrillar cellulose produced in a process comprising disintegrating fibers of cellulose pulp, the method comprising measuring in real-time optically the turbidity of a dispersion containing nanofibrillar cellulose obtained from a disintegrating process, and determining the quality of said produced nanofibrillar cellulose using a correlation between the measured turbidity and said quality of the produced nanofibrillar cellulose, wherein lowered turbidity indicates increased quality of the nanofibrillar cellulose. One embodiment provides a device for monitoring the quality of nanofibrillar cellulose produced in a process comprising disintegrating fibers of cellulose pulp, arranged to carry out said method.

    Method for producing nanofibrillar cellulose and nanofibrillar cellulose product

    公开(公告)号:US10697116B2

    公开(公告)日:2020-06-30

    申请号:US15125343

    申请日:2015-03-27

    Abstract: In a method for producing nanofibrillar cellulose, cellulose based fibre material, in which internal bonds in cellulose fibres have been weakened by preliminary modification of cellulose, is subjected to disintegration treatment in form of pulp comprising fibres and liquid. The fibre material is supplied at a consistency higher than 10 wt-%, preferably at least 15 wt-%, to a disintegration treatment where fibrils are detached from the fibre material by joint effect of repeated impacts to the fibre material by fast moving successive elements and the weakened internal bonds of the cellulose fibres. The nanofibrillar cellulose is withdrawn from the disintegration treatment at dry matter which is equal or higher than the consistency of the fibre material. In the disintegration treatment, the fibre material is supplied through several counter-rotating rotors (R1, R2, R3 . . . ) outwards in the radial direction with respect to the rotation axis (RA) of the rotors in such a way that the material is repeatedly subjected to shear and impact forces by the effect of the blades (1) of the different counter-rotating rotors.

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