公开(公告)号：US11136722B2

公开(公告)日：2021-10-05

申请号：US16496975

申请日：2018-03-26

申请人： Kemira Oyj

发明人： Elisabeth Lackinger-Csarmann ,  Johannes Fallmann ,  Alexander Wahl ,  Thomas Schwind ,  Jürgen Sartori ,  Samuel Okoli

IPC分类号： D21H21/16 ,  D21H11/14 ,  D21H17/02 ,  D21H17/15 ,  D21H17/67 ,  D21H17/00 ,  D21H27/10 ,  D21H27/22

摘要： A manufacturing method of a paper, board or the like having a grammage in a range of 125-600 g/m2, preferably 150-210 g/m2, including adding a paper sizing agent including maleated vegetable oil and an alkenyl succinic anhydride (ASA) to a fibre stock including at least 80 weight-% of recycled fibre material and having calcium concentration of at least 500 mg/l, expressed as CaO.

公开(公告)号：US20210102342A1

公开(公告)日：2021-04-08

申请号：US16496975

申请日：2018-03-26

申请人： Kemira Oyj

发明人： Elisabeth Lackinger-Csarmann ,  Johannes Fallmann ,  Alexander Wahl ,  Thomas Schwind ,  Jürgen Sartori ,  Samuel Okoli

IPC分类号： D21H21/16 ,  D21H11/14 ,  D21H17/15 ,  D21H17/02 ,  D21H17/67 ,  D21H17/00 ,  D21H27/10 ,  D21H27/22

摘要： A manufacturing method of a paper, board or the like having a grammage in a range of 125-600 g/m2, preferably 150-210 g/m2, including adding a paper sizing agent including maleated vegetable oil and an alkenyl succinic anhydride (ASA) to a fibre stock including at least 80 weight-% of recycled fibre material and having calcium concentration of at least 500 mg/l, expressed as CaO.