公开(公告)号：US20220290329A1

公开(公告)日：2022-09-15

申请号：US17607987

申请日：2020-04-30

申请人： Aditya Birla Science and Technology Company Pvt. Ltd. ,  Grasim Industries Ltd.

发明人： Lalaso Vishnu MOHITE ,  Shailesh Prakash NAGARKAR ,  Santosh Shivaji SHINGOTE ,  Shirish Sheshrao THAKRE ,  Suvankar Madhusudan DUTTA ,  Bandu Madhukar KALE ,  Roop Kishore SHARMA ,  Manishkumar Govindbhai LIMBANI ,  Srivastava PANKAJ ,  Harendra Singh DAGUR

IPC分类号： D01D5/06 ,  D01F2/00 ,  D02J1/22 ,  D01D10/06

摘要： The present invention relates to a process for manufacturing lyocell filament yarn with improved mechanical properties and an apparatus thereof. The process involves washing of filament yarn with sequential decrease in NMMO concentrations and filament yarn drying under relaxed conditions. Additionally, the present invention also provides a compact washing and drying apparatus that uses controlled air gap spinning thereby resulting in production of LFY under relaxed conditions and also having a higher mechanical properties & productivity.