Mordanting substrates and agents

A mordanting substrate is provided including a porous substrate, and, distributed within the substrate, a mordanting agent. Preferably, the substrate is a fibrous cellulosic material, and the mordanting agent is a cationic polymer that is soluble in polar solvents, preferably water-soluble. The pola...

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Bibliographische Detailangaben
Hauptverfasser:	ALLRED, DONALD R, JOHNSON, EDWARD J
Format:	Patent
Sprache:	eng
Schlagworte:	COLOUR PRINTING DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM DYEING OR PRINTING TEXTILES FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR IMPREGNATING OR COATING OF PAPER LAUNDERING LINING MACHINES PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PERFORMING OPERATIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES PRODUCTION OF CELLULOSE PULP COMPOSITIONS STAMPS TEXTILES TRANSPORTING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G TREATMENT OF TEXTILES OR THE LIKE TYPEWRITERS
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Beschreibung
Zusammenfassung:	A mordanting substrate is provided including a porous substrate, and, distributed within the substrate, a mordanting agent. Preferably, the substrate is a fibrous cellulosic material, and the mordanting agent is a cationic polymer that is soluble in polar solvents, preferably water-soluble. The polar solvent solubility of the polymer, in combination with the porosity and cellulosic nature of the material, has been found to cause the mordanting agent, when imbibed into the substrate in the form of a solution, to bind to fibers within the substrate. This binding in turn allows excellent immobilization of dye within the substrate.