PROCESS FOR MANUFACTURING RECONSTITUTED LEATHER PRODUCT
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United States of America Patent
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Issued Date -
Sep 8, 2022
app pub date -
Mar 3, 2022
filing date -
Mar 4, 2021
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Abstract
A reconstituted-leather-manufacturing process includes a progressively increasing application of pressure to an aqueous leather solution to form a web of leather fibers. The solution/web may be dewatered to an extent before the first application of a pressure so that the solution/web consistency is on the order 29-55% (fiber to web/solution, by weight) when the first pressure of the progressive sequence of pressures is applied. Tannin (and various chemicals) may be added to the solution. The progressive pressing of the solution/web may be followed by a progressive drying of the web by application of a sequence of increasing temperatures via drying vessels.
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