An alignment film material according to the present invention includes: a precursor of a first polyimide ; a second polyimide and a precursor thereof; and a vinyl-type monomer. The substrate treating apparatus includes a loadingunloading unit, a process unit in which a substrate treating process is performed, a loadlock unit disposed between the loadingunloading unit and the process unit, and a carrying member transferring a substrate between the process unit and the loadlock unit. Each prefix corresponds to an entry in the forwarding table.