Manufacture of hydrated nanocellulose sheets for use as a dermatological treatment
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United States of America Patent
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May 15, 2018
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app pub date -
Oct 24, 2017
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Dec 31, 2014
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Abstract
A hydrated, nonwoven nanocellulose sheet and method for manufacturing the nanocellulose sheet are disclosed. The method of manufacture comprises the steps of diluting a purified nanocellulose slurry to form a colloidal nanocellulose suspension, dispersing pure nanocellulose crystals into the nanocellulose suspension in a nanocellulose crystal to total nanocellulose ratio less than 50% weight per weight (w/w), placing the suspension over a filter sheet in a dispensing device, and forming the hydrated, nonwoven nanocellulose sheet by filtering with a pressure difference across the filter sheet, via a high pressure or vacuum filtration process. The hydrated, nonwoven nanocellulose sheet thus manufactured has high conformability, drape-ability, good adhesion to the skin, and a high rate of evaporation, making it ideal for dermatological treatments.
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