METHOD OF FORMING LINE OF INK

摘要

PURPOSE:To provide a method of forming a line of ink whereby the formation of the line of ink can be accomplished without staining hands or clothes and the newest line of ink, if reformed, can easily be discriminated from the former one, and the formation of a line of ink on a finished surface is possible. CONSTITUTION:A line of ink is formed on a concrete surface by using an ink containing a colorant which can react with hydrated cement changing in color from colorlessness to a some color, can discolor after the lapse of time after coloration and then can fade after the lapse of a certain time.