TY - JOUR
AU - Seath, B.
AB - Focus: B Seath Silberline Ltd, Banbeath Road, Leven, Fife KY8 5HD, United Kingdom Figure 2 Introduction Alumirdum pigments are a small, though, important section of the printing irLk industry. This class of pigment has devel oped significantly in recent years m meet the changing .r demands of the ink manufacturer and printer. Such developments include improved flake geometry, tighter pigment particle size distribution, solvent free prod uct fomls and new chemistry at the flake surface Milling process The development of the product starts with a manufacturing process that has not changed significantly since its introduc- tion almost 60 years ago. The Hall method (Figure 1) is a rel atively safe, wet milling system, producing a high quality metal flake pigment. Figure 1 Fatty acid Aluminium metal Mineral spirits -~ At this point the slurry is flushed out of the mill with more white spirit and screened to remove oversized material. A filter press then removes the solvent to produce a filter cake containing approximately 80% almninium. This is ,0m,(,) 9 ( 0m, processed in a mixer to the product form required, whether paste or granule. Paste characteristics, such as colour and opacity (hiding) are optinfised at this mixing Oversized 
TI - Aluminium pigment developments for printing inks
JF - Surface Coatings International
DO - 10.1007/BF02692648
DA - 2007-08-25
UR - https://www.deepdyve.com/lp/springer-journals/aluminium-pigment-developments-for-printing-inks-n2SPCTytO8
SP - 448
EP - 450
VL - 82
IS - 9
DP - DeepDyve
ER -