Addition of alcohol to prewet solutions to enhance and accelerat

Details Addition of alcohol to prewet solutions to enhance and accelerat Addition of alcohol to prewet solutions to enhance and accelerat

1994-02-23

1995-11-14

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

347 85, 347 86, G01D 1518

Patent

active

054671175

ABSTRACT:
A method is provided for enhancing and accelerating wetting of hydrophobic foams for use as ink reservoirs in ink-jet printer pens. First, the foam is placed in a prewet bath, having already been compressed to expel air. The prewet bath contains an aqueous solution with a low molecular weight alcohol additive, such as n-propanol, ranging in concentration from about 3 to 10 wt. %. Second, the foam is repeatedly compressed and allowed to expand while in the prewet bath, thereby promoting the foam's absorbance of prewetting solution and further improving foam wettability. Finally, the foam is removed from the prewet bath and is compressed to expel excess prewetting solution. The foam retains residual alcohol from the prewet bath that subsequently becomes a constituent of the ink stored in the foam. In addition to improving the wetting process for hydrophobic foam, the alcohol additive prevents orifice plugging within ink-jet pens by becoming a residual constituent of the ink and wetting pen parts through ink usage.

REFERENCES:
patent: 4771295 (1988-09-01), Baker et al.
patent: 4885932 (1989-12-01), Heffernan et al.
patent: 5319841 (1994-06-01), Yata et al.

Affiliated with

Also associated with

Rating

Addition of alcohol to prewet solutions to enhance and accelerat does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Addition of alcohol to prewet solutions to enhance and accelerat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Addition of alcohol to prewet solutions to enhance and accelerat will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1224220