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    • 2. 发明申请
    • PROCESS FOR PRODUCING MODIFIED CELLULOSE PULPS, CELLULOSE PULP THUS OBTAINED AND USE OF BIOPOLYMER FOR PRODUCING CELLULOSE PULPS
    • 用于生产改性纤维素浆的方法,获得的纤维素浆和用于生产纤维素浆的生物聚合物的用途
    • US20130228297A1
    • 2013-09-05
    • US13636075
    • 2011-03-21
    • Romolo RanocchiaAdemilson MassoqueteDanilo Oyakawa
    • Romolo RanocchiaAdemilson MassoqueteDanilo Oyakawa
    • D21H17/28
    • D21H23/04D21C3/222D21C5/025D21C9/005D21C9/1036D21H11/20D21H17/21D21H17/24D21H17/28Y02W30/648
    • 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.
    • 本发明涉及一种生产化学纤维素纸浆的改进方法,其中根据纸浆特性和使用的工艺条件,在漂白步骤之前,期间或之后添加生物聚合物。 根据本发明的生物聚合物是通过醚化反应的淀粉。 与通过传统方法获得的纤维素纸浆相比,该处理导​​致具有改善的物理,化学和机械性能的分化纸浆。 所述生物聚合物的使用改变了重要纸浆性质之间的关系,使其在造纸过程中的应用有利。 这种分化增加了使用的可能性,也增加了新应用的可能性,包括替代其他纤维素来源的纸浆。 因此,本发明还涉及通过使用通过上述方法修饰的纤维素纸浆来制备纸的方法,例如印刷,书写,装饰性,特殊或组织型纸。