配方类型：	INKS
配方说明：	flexographic Black Ink
配方组成：	Formula No. White shellac/39.5 Furnace black/12.0 Denatured alcohol, anhydrous/48.5
配制方法：	Process as above, except that 24 hour grinding time is advised. Formula No.2 Black Ink $D" Carbon black/15 Resin (polyamide)/30 Normal propanol/4 Isopropanol/51 The formulation procedure involves refluxing of the resin in solvent and adding this varnish to the pigment. The ink is then mixed by stirring or by grinding in a ball mill. After ball milling, the ink is cut to a No.2 Zahn cup viscosity of 22 sec with the same solvent used in the original varnish.

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