The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 01, 2025
Filed:
Apr. 30, 2020
Aditya Birla Science and Technology Company Pvt. Ltd., Maharashtra, IN;
Grasim Industries Ltd., Madhya Pradesh, IN;
Lalaso Vishnu Mohite, Maharashtra, IN;
Shailesh Prakash Nagarkar, Maharashtra, IN;
Santosh Shivaji Shingote, Maharashtra, IN;
Shirish Sheshrao Thakre, Maharashtra, IN;
Suvankar Madhusudan Dutta, Maharashtra, IN;
Bandu Madhukar Kale, Gujarat, IN;
Roop Kishore Sharma, Gujarat, IN;
Manishkumar Govindbhai Limbani, Gujarat, IN;
Srivastava Pankaj, Girsomnath, IN;
Harendra Singh Dagur, Gujarat, IN;
ADITYA BIRLA SCIENCE AND TECHNOLOGY COMPANY PVT. LTD., Maharashtra, IN;
GRASIM INDUSTRIES LTD., Madhya Pradesh, IN;
Abstract
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.