A new technique for real value representation in inversion recovery (IR) imaging is proposed. In this scheme, a new phase correction method is used to compensate the phase error of measured nuclear signal without eliminating the polarity information thereby representing the real value of physical properties of nuclei in IR imaging. By use of this scheme, a consistent IR image set as a function of several inversion times $T_I$ can be obtained. On the other hand, two kinds of pulse sequences for more efficient time multiplexing multislice IR imaging are developed. These sequences can utilize maximally the repetition time $T_R$ and the inversion time $T_I$. Some experimental results to confirm these proposed methods are presented.