INK AND PROCESS FOR SYNCHRONOUS JET PRINTING

摘要

An ink having a resistivity in the range of 106 to 1011 ohm-centimeters and a viscosity in a range with an upper limit of about 50 centipoises synchronously is formed into a uniform succession of ink drops in response to an alternating current. A stream of the ink drops is electrostatically drawn across and deflected in a span between the ink source and a carrier for printing thereon by drop impingement. The ink is a composition having about 3 percent by weight of a dye material and the remainder a vehicle comprised of at least one alcohol of the paraffin series which has the general formula CH3(CH2)nCH2OH in which n is an integer between 12 and 16.