WATER BASE INK COMPOSITIONS FOR NEON BOARDS

摘要

A water base ink composition for writing on neon boards comprises: (a) at least 30% by weight water; (b) 0.5-50% by weight hollow resin particles; (c) 0.5-30% by weight resin which is film-forming at room temperature; and (d) 0.5-25 % dry weight of aqueous emulsion of at least one nonvolatile or only slightly volatile liquid selected from aliphatic carboxylic acid esters, higher hydrocarbons and higher alcohols. Writings or marking formed with the ink composition on transparent panels such as of polymethyl methacrylate are intensely and vividly brightened when a side face receives light incident perpendicularly into the panel.