Claims
- 1. An ink jet printing process for improving the water-fastness of an ink jet image comprising:a) providing an ink jet recording element comprising a support having thereon an image-recording layer comprising a cross-linkable gelatin and a mordant, b) applying liquid ink droplets of an anionic, water-soluble dye on said image-recording layer in an image-wise manner, and c) submerging said element in an aqueous solution of a hardener to cross-link said gelatin.
- 2. The process of claim 1 wherein said support is paper.
- 3. The process of claim 1 wherein said cross-linkable gelatin is present in an amount of from about 5 to about 30 g/m2.
- 4. The process of claim 1 wherein said mordant is a cationic mordant or a basic polymer.
- 5. The process of claim 1 wherein said mordant is present in an amount of from about 0.5 to about 5 g/m2.
- 6. The process of claim 1 wherein said anionic dye is a metallized or non-metallized azo dye, a xanthene dye, a metallophthalocyanine dye or a sulfur dye.
- 7. The process of claim 1 wherein said liquid ink droplets have a water carrier.
CROSS REFERENCE TO RELATED APPLICATION
Reference is made to commonly-assigned copending U.S. patent application Ser. No. 09/216,531, filed Dec. 18, 1998, Docket 78773HEC entitled “Ink Jet Printing Process”, of Gallo et al; and
Copending U.S. patent application Ser. No. 09/216,558, filed Dec. 18, 1998, Docket 78798HEC entitled “Ink Jet Printing Process”, of Romano, Jr. et al; and
Copending U.S. patent application Ser. No. 09/216,149, filed Dec. 18, 1998, Docket 78799HEC entitled “Ink Jet Composition”, of Romano, Jr., et al; and
Copending U.S. patent application Ser. No. 09/216,653, filed Dec. 18, 1998, Docket 78815HEC entitled “Ink Jet Printing Process”, of Kovacs et al; and
Copending U.S. patent application Ser. No. 09/216,288, filed Dec. 18, 1998, Docket 78818HEC entitled “Ink Jet Printing Process”, of Kovacs et al; and
Copending U.S. patent application Ser. No. 09/216,350, filed Dec. 18, 1998, Docket 78819HEC entitled “Ink Jet Printing Process”, of Kovacs et al; and
Copending U.S. patent application Ser. No. 09/216,147, filed Dec. 18, 1998, Docket 78820HEC entitled “Ink Jet Ink Composition”, of Kovacs et al; and
Copending U.S. patent application Ser. No. 09/216,203, filed Dec. 18, 1998, Docket 78846HEC entitled “Ink Jet Printing Method”, of Romano, Jr., et al; and
Copending U.S. patent application Ser. No. 09/216,304, filed Dec. 18, 1998, Docket 78847HEC entitled “Ink Jet Printing Method”, of Kovacs et al; and
Copending U.S. patent application Ser. No. 09/083,875, filed May 22, 1998, entitled “Inkjet Images on PVA Overcoated with Hardener Solution”, of Erdtmann et al.; and
Copending U.S. patent application Ser. No. 09/083,605 filed May 22, 1998, entitled “Ink Jet Prints Overcoated with Hardener”, of Erdtmann et al., the teachings of which are incorporated herein by reference.
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