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1. (WO2016054227) SYSTEMS AND METHODS FOR REVERSING BANKNOTE LIMPNESS

Pub. No.:    WO/2016/054227    International Application No.:    PCT/US2015/053246
Publication Date: Fri Apr 08 01:59:59 CEST 2016 International Filing Date: Thu Oct 01 01:59:59 CEST 2015
IPC: B08B 7/00
C11D 7/12
C11D 11/00
Applicants: SPECTRA SYSTEMS CORPORATION
Inventors: BYRNE, Paul
LAWANDY, Nabil
Title: SYSTEMS AND METHODS FOR REVERSING BANKNOTE LIMPNESS
Abstract:
A method for enhancing the structural strength of a porous substrate having pores therein is disclosed. The method includes soaking the porous substrate in a solution having a first solvent and at least one polymer dissolved in the first solvent at a specific temperature and pressure, such that the solution is deposited within pores of the porous substrate, soaking the porous substrate in a second solvent, such that the first solvent diffuses into the second solvent, and such that the at least one polymer remains within the pores of the porous substrate, and flushing out the second solvent from the porous substrate.