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    PROCESS FOR PRODUCING MODIFIED CELLULOSE PULPS, CELLULOSE PULP THUS OBTAINED AND USE OF BIOPOLYMER FOR PRODUCING CELLULOSE PULPS
    1.
    发明公开
    PROCESS FOR PRODUCING MODIFIED CELLULOSE PULPS, CELLULOSE PULP THUS OBTAINED AND USE OF BIOPOLYMER FOR PRODUCING CELLULOSE PULPS 有权
    了治疗纤维素纸浆和生物聚合物的使用纤维素纸浆处理

    公开(公告)号：EP2547823A2

    公开(公告)日：2013-01-23

    申请号：EP11713464.3

    申请日：2011-03-21

    申请人： Fibria Celulose S/A

    发明人： RANOCCHIA, Romolo ,  MASSOQUETE, Ademilson ,  OYAKAWA, Danilo

    IPC分类号： D21C3/22 ,  D21C5/02 ,  D21C9/00 ,  D21C9/10 ,  D21H17/21 ,  D21H17/24 ,  D21H17/28

    CPC分类号： D21H23/04 ,  D21C3/222 ,  D21C5/025 ,  D21C9/005 ,  D21C9/1036 ,  D21H11/20 ,  D21H17/21 ,  D21H17/24 ,  D21H17/28 ,  Y02W30/648

    摘要： The present invention relates to an improved process for producing chemical cellulose pulp wherein biopolymers are added immediately before, during or after a bleaching step, depending on pulp characteristics and on process conditions used. The biopolymers according to the present invention are starch by an etherification reaction. This treatment results in a differentiated pulp having improved physical, chemical and mechanical properties when compared with cellulose pulps obtained by traditional processes. The use of said biopolymer alters the relations between important pulp properties rendering their application in papermaking process advantageous. This differentiation increases the possibilities of use and also of new applications, including for the substitution of pulps produced from other cellulose sources. Thus, the present invention also relates to a process for the preparation of paper, such as printing, writing, decorative, special or tissue-type papers, through the use of the cellulose pulps modified by the above process.

    摘要翻译： 本发明涉及改进的用于生产化学纸浆纤维素生物聚合物worin立即加入之前，期间或漂白步骤之后，根据纸浆特性和所用的工艺条件。 生物聚合物gemäß，本发明是在醚化反应通过淀粉。 这种处理导致在分化的纸浆具有改善的物理，化学和机械性能当与通过传统方法获得的纤维素纸浆相比。 使用生物聚合物所述岁之间重要的纸浆性能的关系，致使它们的应用在造纸过程是有利的。 这种分化增加使用的可能性，并因此新的应用，包括用于从其他的纤维素源产生的纸浆的取代。 因此，本发明因此涉及用于纸，彩色的制备方法：如印刷，书写，装饰性的，特殊或组织型纸，通过使用由上述方法改性的纤维素纸浆的。