公开(公告)号：US11313082B2

公开(公告)日：2022-04-26

申请号：US16488710

申请日：2017-04-19

申请人： SCG Packaging Public Company Limited

发明人： Kasinee Thitiwutthisakul ,  Prakan Leerapongnun ,  Saowanee Arpawasin ,  Suebthip Pongpaiboon ,  Chairat Pongtongcharoen

IPC分类号： D21H15/10 ,  D21H11/12 ,  D21H11/14 ,  D21H11/18 ,  D21H17/28 ,  D21H23/04

摘要： This invention relates to a sheet material comprising fiber and nano-microscale organic fibrillated filler, wherein the nano-microscale organic fibrillated filler comprises microfibrillated cellulose and starch granule in such a way that the microfibrillated cellulose is dispersed with starch granule, and the nano-microscale organic fibrillated filler has starch granule at least 15 wt %. Besides, this invention also relates to a method of producing said sheet material comprising fiber and nano-microscale organic filler, wherein the method comprises the steps of (i) preparing pulp suspension, (ii) preparing nano-microscale organic fibrillated filler, (iii) adding the nano-microscale organic fibrillated filler into the pulp suspension, (iv) forming sheet material by pressing, and (v) drying the sheet material, wherein the preparation step of nano-microscale organic fibrillated filler provides the nano-microscale organic fibrillated filler comprising microfibrillated cellulose and starch granule in such a way that the microfibrillated cellulose is dispersed with starch granule.