Claims
- 1. A method of printing on a non-ink receptive substrate having an ink-receptive coating thereon to form an imaged medium, comprising:
- (a) employing as said ink-receptive coating a material such that
- (1) upon depositing ink drops on the surface thereof, adjacent drops of ink do not contact one another,
- (2) said drops of ink are then absorbed into said ink-receptive coating to form dots of ink,
- (3) radial diffusion of said dots then occurs within said ink-receptive layer until said dots achieve a dot size at least about .nu.2/DPI, where DPI is the number of dots per inch, and
- (4) radial diffusion of said dots is then terminated by solvent elimination from said ink-receptive layer such that said dot size is less than about 2/DPI;
- (b) printing an ink on said ink-receptive coating by ink-jet techniques; and
- (c) storing said imaged medium between removable protective sheets comprising a cellulose acetate having water absorption greater than 3% and water vapor transmission rate greater than 10 g water per 1 mil thickness per 100 square inches per 24 hours, such that the correct amount of lateral dot spread is promoted.
- 2. The method of claim 1 wherein said non-ink receptive substrate comprises a polyester film base and said ink-receptive coating comprises a polyacrylic acid layer having a dry film thickness ranging from about 4 to 12 .mu.m.
- 3. A method of printing on a non-ink receptive, transparent substrate having an ink-receptive, transparent coating thereon to form a transparent, imaged medium, comprising:
- (a) employing as said ink-receptive coating a material such that
- (1) upon depositing ink drops on the surface thereof, adjacent drops of ink do not contact one another,
- (2) said drops of ink are then absorbed into said ink-receptive coating to form drops of ink,
- (3) radial diffusion of said dots then occurs within said ink-receptive layer until said dots achieve a dot size at least about .nu.2/DPI, where DPI is the number of dots per inch, and
- (4) radial diffusion of said dots is then terminated by solvent elimination from said ink receptive layer such that said dot size is less than about 2/DPI,
- (b) printing an ink on said ink-receptive coating by ink-jet techniques, and
- (c) storing said imaged medium between removable protective sheets comprising a cellulose acetate having water absorption greater than 3% and water vapor transmission rate greater than 10 g water per 1 mil thickness per 100 square inches per 24 hours, such that the correct amount of lateral dot spread is promoted.
CROSS-REFERENCE TO RELATED APPLICATION
The present application is a continuation-in-part application of Ser. No. 07/057,131, filed June 1, 1987, now abandoned.
US Referenced Citations (4)
Non-Patent Literature Citations (1)
Entry |
Titterington et al; Development of a Transparent Receiving Sheet For Ink-Jet Printing; Journal of Imaging Science, vol. 30, No. 1 J/F 1986, pp. 4-8. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
57131 |
Jun 1987 |
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