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Ink Jet Ink Testing

IP.com Disclosure Number: IPCOM000048302D
Original Publication Date: 1982-Jan-01
Included in the Prior Art Database: 2005-Feb-08
Document File: 2 page(s) / 34K

Publishing Venue

IBM

Related People

Stremel, DA: AUTHOR

Abstract

The resolubility rate of solidified ink jet ink, when placed in liquid ink, is a measure of that particular ink's propensity to undesirably crust when used in ink jet hardware. In this method a number of capillary tubes, for example, four, are partially filled with the ink, the ink is allowed to dry, and the filled ends of the tubes are then placed in a container of liquid ink. The time necessary to dissolve the dried ink is measured.

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Ink Jet Ink Testing

The resolubility rate of solidified ink jet ink, when placed in liquid ink, is a measure of that particular ink's propensity to undesirably crust when used in ink jet hardware. In this method a number of capillary tubes, for example, four, are partially filled with the ink, the ink is allowed to dry, and the filled ends of the tubes are then placed in a container of liquid ink. The time necessary to dissolve the dried ink is measured.

The capillary tubes are 1.5 to 1.8 millimeter (mm) by 90 mm glass tubes. The weight of each tube is recorded. One end of each tube is then dipped into the ink solution, and the ink is allowed to penetrate the tube from 1/4 to 3/8 inch.

The tubes 10 are then gently wiped, and placed in the curing fixture of Fig. 1. This fixture comprises a piece of card stock 11, encircled by a rubber band 12 which has been divided into compartments by metal staples 13.

The curing fixture is placed in a 90 degrees F oven with the tubes extending vertically, and with ink sample 14 disposed at the lower end of the tubes. Curing is fully accomplished in 24 hours, after which the fixture is removed and allowed to cool to ambient temperature for 1 hour.

The tubes are now reweighed, and the weight of the now-dry ink plug of each tube is calculated.

The tubes are taped to a glass slide, as shown in Fig. 2, such that the ends of the tubes containing the now-dry ink plug are about 1/4 inch apart, horizontally, end extend about 1 inch below...