Filaments comprising microfibrillar cellulose, fibrous nonwoven webs and process for making the same
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United States of America Patent
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Aug 23, 2016
Grant Date -
May 1, 2014
app pub date -
Oct 2, 2013
filing date -
Oct 31, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed herein is a cellulosic textile filament made from microfibrillar cellulose fibers and a thickening agent as well as the precursor dope for forming such filaments, nonwoven webs made from such cellulosic textile filaments and the process for forming such filaments and nonwoven webs including such filaments. One of the advantages of these filaments is the eco-sensitive way in which they are made as they utilize a water-based dope that does not require any chemical solvents unlike other processes such as those used to make Lyocell fibers. In addition, the process does not involve any washing or extraction steps and it employs a cellulosic fiber source that is broadly based and renewable.
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International Classification(s)
- A61F:FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES....
- B29B:PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE ....
- D02G:CRIMPING OR CURLING FIBRES, FILAMENTS, YARNS, OR T....
- D01F:CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL....
- A61L:METHODS OR APPARATUS FOR STERILISING MATERIALS OR ....
- D04H:MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAME....
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