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US 10,208,404 B2Granted
Micro and nanofibers of polysaccharide based materials
AssigneeCLARCOR Inc.
InventorsStephen Kay, Yogesh Ner, Yatinkumar Narayan Rane
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Abstract
Described herein are apparatuses and methods of creating fibers, such as microfibers and nanofibers, that are composed of saccharides. The methods discussed herein employ centrifugal forces to transform saccharide material into fibers. Apparatuses that may be used to create saccharide fibers are also described. Fiber producing devices with features that enhance fiber production and adaptability to different types of fiber are described.
Claims16
A method of producing microfibers and/or nanofibers, comprising:
- placing a composition into a fiber producing device comprising one or more openings, wherein the composition comprises a polysaccharide, a carrier and a solvent capable of dissolving at least a portion of the polysaccharide and the carrier;
- and
- rotating the fiber producing device about a spin axis such that rotation of the fiber producing device causes at least a portion of the composition disposed in the fiber producing device to be ejected through the one or more of the openings and form fibers comprising the polysaccharide as the ejected composition solidifies;
- collecting at least a portion of the produced microfibers and/or nanofibers;
- and
- wherein the weight % of polysaccharide/carrier to solvent ranges from 2% to about 30%.
3 more elements
A method of producing microfiber and/or nanofibers, comprising:
- placing a composition into a fiber producing device comprising one or more openings, wherein the composition comprises a polysaccharide, a carrier and a solvent capable of dissolving at least a portion of the polysaccharide and the carrier;
- altering the viscosity of the composition to a preselected viscosity by altering the ratio of polysaccharide/carrier to solvent prior to placing the composition in the fiber producing device, wherein the preselected viscosity produces fibers having a predetermined average diameter;
- rotating the fiber producing device about a spin axis such that rotation of the fiber producing device causes at least a portion of the composition disposed in the fiber producing device to be ejected though the one or more of the opening and from fibers comprising the polysaccharide as the ejected comprising solidifies:
- activating a substrate transfer system to move at least a portion of the substrate over a substrate support positioned below the fiber producing device;
- and
- collecting at least a portion of the produced microfibers and/or nanofibers.
3 more elements
Dependencies are inferred from the claim text.