Title: Color inks for projection writing
Application Number: 85104289 Application Date: 1985.06.01
Publication Number: 1005287 Publication Date: 1986.11.26
Approval Pub. Date: Granted Pub. Date: 1990.06.27
International Classifi-cation: C09D11/16
Applicant(s) Name: National Defence Science Address:
Inventor(s) Name:
Attorney & Agent: WEN WEINENG
Abstract:
     The characteristics of this invention are the direct use of fairly water soluble acidic dyes as colorant, water is the only solvent, and a convenient amount of crosslinking agent should be added in the water solution. During the time of preparation of inks and of writing with the ink, there is no volatile toxic and harmful substance evolved. In case of writing on those materials like transparent papers on glass plates with these inks, they show characters and drewings of brilliant color, fair dispersion and of fitable speed of drying, further more, they are easy to preserve and erase.
Time: 3