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    • 42. 发明申请
    • METHOD AND APPARATUS FOR THE SPLITTING OF CELLULOSIC FIBERS, METHODS FOR THE TREATMENT OF FIBROUS PULPS FOR A PAPERMAKING PROCESS, METHODS FOR PAPER DRYING AND PAPER PRODUCTS WITH SPLIT FIBERS
    • 用于分离纤维素纤维的方法和装置,用于处理造纸工艺的纤维纸浆的方法,用于纸张干燥的方法和具有分离纤维的纸制品
    • WO2012080579A1
    • 2012-06-21
    • PCT/FI2011/051123
    • 2011-12-16
    • SALMINEN, Reijo K.
    • SALMINEN, Reijo K.
    • D21C9/00D21C9/02D21C9/18D21C9/10
    • D21D1/34D01B1/14D21B1/36D21C9/007D21C9/10D21H11/16
    • The invention relates to a method for longitudinal splitting of hollow cellulosic fibers. The method comprises the steps of wetting the fibers, feeding the wet fibers to an above atmospheric gaseous flow, and conducting the gaseous flow carrying the fibers through a venturi tube. The pressure drop in the venturi tube throat brings a pressure difference between the inside and the outside of the fibers and causes the fibers to split in their longitudinal direction. Further objects of the invention are an apparatus for splitting the fibers, a method of washing fibrous pulp, methods for the bleaching of fibrous pulp, methods for the chemical treatment of fibrous pulp, a method for the deinking of recycled paper, methods for the pretreatment of fibrous pulp or recycled paper for papermaking, methods for the preparation of dried paper, and finished paper products comprising longitudinally split fibers. Splitting of the fibers provides access to the bound liquid inside the lumen of the fibers, benefiting the various fiber treatments and drying operations, and reduces the freeness of the finished paper while preserving its strength.
    • 本发明涉及一种中空纤维素纤维的纵向分裂方法。 该方法包括以下步骤:润湿纤维,将湿纤维送入上述大气中的气流,以及将通过文氏管传送纤维的气流导入。 文丘里管喉管中的压降会导致纤维内部和外部之间的压力差,导致纤维沿纵向分裂。 本发明的另外的目的是用于分离纤维的装置,洗涤纤维纸浆的方法,漂白纤维纸浆的方法,纤维纸浆的化学处理方法,再循环纸的脱墨方法,预处理方法 用于造纸的纤维纸浆或再生纸,用于制备干纸的方法以及包含纵向分裂纤维的成品纸制品。 纤维的分裂提供进入纤维内腔内的结合液体,有利于各种纤维处理和干燥操作,并且在保持其强度的同时降低成品纸的打浆度。