Patent ID: 6106600
Filing Date: 2000-08-22
Classification: C09D

Abstract:
An ink jet ink comprising a binder, a colourant, a conductivity controller and a liquid vehicle in which at least the binder and colourant are soluble, in which the binder consists of a nitrocellulose having a viscosity of 15 centipoise or less; or a weight average molecular weight of not more than 25,000;and the nitrocellulose has a nitrogen content of at least 9.5% by weight as measured by the method of ASTM D 301-72;and in that the ink has a viscosity of 1.6 to 4 centipoise at 25.degree. C. using a Brookfield DV-11+ viscometer with a number 00 spindle at 60 r.p.m.