| 摘要 |
A marking liquid composition for use in carbonless record material to produce high intensity marks includes an alkylated biphenyl solvent having a specific amount of colorless chromogenic material and a larger amount of alkylated dodecyl benzene to yield a blue mark of high intensity, and a specific amount of colorless chromogenic material and a lesser amount of alkylated dodecyl benzene to yield a black mark of high print intensity. |
