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    • 5. 发明公开
    • METHOD FOR REFINING FIBRES FOR PAPER MAKING AND APPARATUS SUITABLE FOR SAID PROCESS
    • 精制造纸用纤维的方法和适用于所述方法的设备
    • EP3230521A1
    • 2017-10-18
    • EP15807901.2
    • 2015-12-09
    • Clumpkens, Mathias Johannes
    • Clumpkens, Mathias Johannes
    • D21D1/36D21D1/38
    • D21D1/38D21D1/36
    • The invention relates to a method for compression refining of fibers for papermaking, wherein a slurry of fibers with a consistency of between about 2 wt% and 20 wt% of dry fibers in water is subjected to compression forces in an apparatus comprising at least two rolling surfaces with substantially the same velocity. At least one of the surfaces is curved, such that the surfaces move towards each other to achieve a compression force. The position of smallest distance between the surfaces is a closest position. At least one surface is provided with bars and grooves, the bars being at most 16 mm wide and the grooves being sufficiently large to aid in having water pressed out of the paper slurry. The relative speed of the surfaces to each other is such that water leaves the paper slurry upon reaching the closest position, and wherein the bars compress the fibers.
    • 本发明涉及一种用于造纸用纤维的压缩精炼的方法,其中在包含至少两次轧制的装置中使稠度为约2重量%至20重量%的纤维在水中的纤维的浆料经受压缩力 表面具有基本相同的速度。 至少一个表面是弯曲的,使得表面朝向彼此移动以实现压缩力。 表面之间的最小距离的位置是最近的位置。 至少一个表面设有条和凹槽,条最多16毫米宽,凹槽足够大以帮助将水压出纸浆。 表面相对于彼此的相对速度是这样的,使得水在到达最近位置时离开纸浆,并且其中这些棒压缩纤维。
    • 6. 发明公开
    • METHOD FOR PRODUCING NANOFIBRILLAR CELLULOSE AND NANOFIBRILLAR CELLULOSE PRODUCT
    • VERFAHREN ZUR HERSTELLUNG VONNANOFIBRILLÄRERCELLULOSE UNDNAN​​OFIBRILLÄRESCELLULOSEPRODUKT
    • EP3126570A1
    • 2017-02-08
    • EP15717527.4
    • 2015-03-27
    • UPM-Kymmene Corporation
    • NUOPPONEN, MarkusTAMPER, JuhaKAJANTO, Isko
    • D21H11/18D21B1/34
    • D21B1/14D21D1/36D21H11/18
    • 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.
    • 在制造纳米纤维素纤维素的方法中,通过纤维素的预先改性而使纤维素纤维中的内部纤维弱化的纤维素类纤维材料以包含纤维和液体的纸浆的形式进行崩解处理。 将纤维材料以高于10重量%,优选至少15重量%的浓度供应至其中原纤维从纤维材料脱离的分解处理,通过快速移动连续元素对纤维材料的重复冲击的联合作用 和纤维素纤维的内部弱键。 在干物质的分解处理中将纳米纤维素纤维素从等于或高于纤维材料的稠度取出。 在分解处理中,纤维材料通过几个反向转动的转子(R1,R2,R3 ...)以相对于转子的旋转轴线(RA)的径向方向向外被提供,使得材料 通过不同的反向旋转转子的叶片(1)的作用重复地受到剪切和冲击力的影响。