| 摘要 |
A printing compound and method of producing three-dimensional signs and lettering and Braille reading materials is disclosed. The printing compound includes an ultraviolet radiation curable resin and a filler mixed with the resin to form a paste. The resin can be an acrylated urethane oligomer or an epoxidized oil. The compound is applied to a substrate manually or by a computer controlled dispensing apparatus. The compound is subjected to ultraviolet radiation to cure quickly allowing for mass production. |
