Thermal ink jet printer having ink nucleation control

Details Thermal ink jet printer having ink nucleation control Thermal ink jet printer having ink nucleation control

1987-09-02

1989-01-10

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

106 20, G01D 1516, C09D 1100

Patent

active

047976926

ABSTRACT:
A thermal ink jet printer uses a water-based ink containing a second liquid suspended therein which effects rapid bubble growth with lower pulse power levels. The second liquid, such as hexane, acts as a nucleation trigger for the water-based ink. To be effective in ink nucleation control, the homogeneous nucleation temperature of the second liquid suspension must be below the water-based ink's heterogeneous nucleation temperature and the suspended phase must be present in the form of small droplets with a high number density.

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patent: 4638337 (1987-01-01), Torpey et al.
patent: 4723129 (1988-02-01), Endo
R. A. MacKay et al; "Interreactions and Reactions in Microemulsions", pp. 801-816.

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