High definition impulse ink jet in compositions
AssigneeTrident Limited
InventorsTheodore M. Cooke, Alexander J. Fekete, Jr.
Life of this patent
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Abstract
Impulse-type ink jet ink compositions are provided along with processes for recording information therewith. The ink compositions preferably comprise from about 65 to about 80 percent by weight of a low molecular weight diol, from about 15 to about 25 percent by weight of a low molecular weight diol ether, and from about 1 to about 15 percent by weight of a colorant. The ink compositions are suitable for printing clear, well-defined alphanumeric text or bar codes on porous substrates such as kraft paper corrugated cardboard.
Claims15
An ink composition for use in impulse ink jet printers, comprising:
- from about 65 to about 80 percent by weight of a low molecular weight diol;
- from about 15 to about 25 percent by weight of low molecular weight diol ether;
- and
- from about 1 to about 15 percent by weight of a colorant;
- said ink composition being substantially free of water.
An ink composition for sue in impulse ink jet printers, comprising:
- from about 65 to about 80 percent by weight of a diol having a liquid phase between about 20 and about 70.degree. C.;
- from about 15 to about 25 percent by weight of a polyoxyethylene glycol having a liquid phase between about 20 and about 70.degree. C.;
- and
- from about 1 to about 15 percent by weight of a colorant;
- said ink composition begin substantially free of water.
Dependencies are inferred from the claim text.