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209 条记录 (耗时 0.018 秒)

    METHOD FOR THE TREATMENT OF A FIBROUS RAW MATERIAL
    1.
    发明申请
    METHOD FOR THE TREATMENT OF A FIBROUS RAW MATERIAL 审中-公开

    公开(公告)号：WO2023037048A1

    公开(公告)日：2023-03-16

    申请号：PCT/FI2022/050588

    申请日：2022-09-06

    申请人： INFINITED FIBER COMPANY OY

    发明人： SIREN, Sakari ,  STJERNBERG, Martin

    IPC分类号： D04H1/425 ,  D04H1/4258 ,  D04H1/4274 ,  D21C3/02 ,  D21C3/04 ,  D21C3/26 ,  D21C9/00 ,  D21C9/02 ,  D21H11/12 ,  D21H13/24

    摘要： According to an example aspect of the present invention, there is provided a method of treating a fibrous raw-material containing cellulosic fibres and polyester fibres, comprising the steps of subjecting the raw-material to acid treatment and to a washing operation, subjecting the washed first modified fibrous raw-material to an alkaline treatment to dissolve at least a portion of the polyester fibres and to form a second modified fibrous raw-material that is subjected to separation to separate solid matter from an aqueous liquid phase comprising dissolved material, recovering the solid matter of the separation, subjecting the recovered second modified raw-material to a washing, subjecting the liquid phase to a first filtration step using a micromembrane to obtain a first aqueous permeate, subjecting the first permeate to a second filtration step using a nanomembrane to obtain a second permeate, recovering the second aqueous permeate and recycling it to an alkaline treatment step.

    DISPERSIBLE NON-WOOD PULP
    2.
    发明申请
    DISPERSIBLE NON-WOOD PULP 审中-公开

    公开(公告)号：WO2022098958A1

    公开(公告)日：2022-05-12

    申请号：PCT/US2021/058191

    申请日：2021-11-05

    申请人： KIMBERLY-CLARK WORLDWIDE, INC.

    发明人： PAULSON, David J. ,  SHANNON, Thomas G. ,  ACKERLY, Samantha C. ,  UNDERHILL, Richard L. ,  YU, Zhiying

    IPC分类号： D21H11/12 ,  D21H11/20 ,  D21C1/06 ,  D21C1/10 ,  D21C3/02 ,  D21C9/16

    摘要： Disclosed are non-wood pulps having a fiber length greater than about 1.70 mm and a Very Long Fiber (VLF) content of about 0.50% or less. The fibers are readily dispersible in water and useful in the formation of fibrous sheets, particularly wet-laid sheets and more particularly wet-laid tissue sheets having a relatively low basis weight. In addition of having a relatively long fiber length and a low VLF content, the pulps may also have a Dispersivity Index of about 2.00 or less, which is indicative of a relatively narrow fiber length distribution. The pulps may be prepared from plants of the family Asparagaceae by mechanical pulping and more preferably by a chemi-mechanical pulping process using an alkaline and hydrogen peroxide where the plant biomass is cut to size prior to pulping.

    친환경 자연분해 멀칭지 및 이를 제조하는 방법
    3.
    发明申请
    친환경 자연분해 멀칭지 및 이를 제조하는 방법 审中-公开

    公开(公告)号：WO2022065619A1

    公开(公告)日：2022-03-31

    申请号：PCT/KR2021/005234

    申请日：2021-04-26

    申请人： 임용환

    发明人： 임용환 LIM, Yong Hwan

    IPC分类号： D21H11/08 ,  D21H11/12 ,  D21H11/14 ,  D21F11/06 ,  D21F11/00 ,  B31F1/20 ,  B26D3/08 ,  D21H21/28 ,  D21H21/14 ,  D21H25/00

    摘要： 본 발명의 일면은 농작물이 재배되는 경작지에 덮어져 잡초억제와 수분유지 및 보온 등의 목적으로 사용되는 멀칭지(10)에 관한 것으로, 순수 식물성 원료인 케나프와 침엽수펄프로 조성됨에 따라 종이처럼 자연분해가 가능하여 환경오염의 주범인 합성수지재의 사용을 대폭 줄일 수 있음에 따라 지구환경을 살리는데 이바지할 수 있고, 기존의 비닐멀칭재와는 달리 우수한 보온성, 통풍성과 방제성능을 가짐으로써, 작물생육에 적절한 온도 및 수분조절은 물론 해충퇴치로 인해 원활한 생육으로 수확량 증대와 품질을 높일 수 있고, 토양에 완전분해와 동시에 각종 미네랄 성분이 제공됨으로써, 가벼운 중량과 수거의 불필요로 인해 노동력 절감은 물론 기름진 토양으로 개질시킬 수 있는 친환경 자연분해 멀칭지를 특징으로 한다.

    一种纸巾纸或厨房用纸的生产方法及其纸张制备方法
    7.
    发明申请
    一种纸巾纸或厨房用纸的生产方法及其纸张制备方法 审中-公开

    公开(公告)号：WO2021093093A1

    公开(公告)日：2021-05-20

    申请号：PCT/CN2019/127034

    申请日：2019-12-20

    申请人： 衢州龙游双熊猫纸业有限公司

    发明人： 项月雄

    IPC分类号： D21H27/00 ,  D21H11/12 ,  D21H17/02 ,  D21H17/28 ,  D21H17/00 ,  D21H21/20 ,  D21H21/14 ,  D21F11/00 ,  C12N11/02 ,  C12N9/20

    摘要： 一种纸巾纸或厨房用纸的生产方法及其纸张制备方法，通过初干燥、湿法起皱拾纸、二次干燥、收卷来进行加工，其纸张由针叶纤维20份，竹纤维35份，蔗渣纤维25份、0.25wt％的柔顺剂、1.25wt％湿强剂、10.8wt％的红麻芯混合料和3.6％的固定化复合脂肪酶制备而成，通过湿法起皱结合真空拾纸装置来对纸张进行起皱而保证了纸张的质量和纸屑问题。而在向纸张中添加改性的红麻芯和固定化复合脂肪酶，并摸索出最佳的添加量，通过红麻芯提高纸张的油脂吸附性能，并能够进一步的保证湿法起皱和真空拾纸的操作，保证了纸张的成品质量。

    MEHRLAGIGES ALTPAPIER- UND GRASFASERN ENTHALTENDES PAPIER
    9.
    发明申请
    MEHRLAGIGES ALTPAPIER- UND GRASFASERN ENTHALTENDES PAPIER 审中-公开

    公开(公告)号：WO2020147989A1

    公开(公告)日：2020-07-23

    申请号：PCT/EP2019/079104

    申请日：2019-10-24

    申请人： PAPIERFABRIK MELDORF GMBH & CO. KOMMANDITGESELLSCHAFT ,  WEHRMANN, Hans

    发明人： WEHRMANN, Hans ,  PFLUG, Martin

    IPC分类号： D21H27/10 ,  D21H27/30 ,  D21H27/40 ,  D21H11/12 ,  D21H11/14

    摘要： Offenbart wird ein Papier (10), insbesondere für die Verwendung zur Herstellung von Wellpappe. Das Papier (10) ist aus wenigstens zwei miteinander vergautschten Lagen mit unterschiedlicher Zusammensetzung gebildet ist enthält Altpapierfasern und Grasfasern. Das Besondere an dem Papier ist, dass eine erste Lage des Papiers (10) als Tragschicht (11) ausgebildet ist und einen maximalen Anteil an Grasfasern von 30 Gew.-% enthält, dass eine zweite Lage des Papiers (10) eine Deckschicht (12) ausbildet mit einem minimalen Anteil an Grasfasern von 20 Gew.-% und einem maximalen Anteil an Altpapierfasern von 80 Gew.-% und dass der Anteil an Grasfasern in der Deckschicht (12) höher ist als der Anteil an Grasfasern in der Tragschicht (11).

    BIOCOMPOSITE MATERIAL
    10.
    发明申请
    BIOCOMPOSITE MATERIAL 审中-公开

    公开(公告)号：WO2020122805A1

    公开(公告)日：2020-06-18

    申请号：PCT/SE2019/051277

    申请日：2019-12-13

    申请人： ORGANOCLICK AB

    发明人： AYDIN, Juhanes

    IPC分类号： D21H17/02 ,  D21H11/12 ,  D21H21/18 ,  D21J3/00

    摘要： The present invention relates generally to biocomposite materials made of cellulose and wheat bran and/or oat husk, prepared by methods comprising mixing the husk or bran with an aqueous alkaline solution, stirring and/or homogenizing the mixture, admixing with cellulose pulp and thermoforming the material under conditions admitting curing, thereby obtaining improvements in strength measured as at least one of strain at peak (%), stress at peak (%) and Young's modulus (MPa).