Printing Industries Ass'n of Texas v. Director of the Department of Agriculture & Environment

O’QUINN, Justice.

By this lawsuit two corporations and one voluntary association, in behalf of entities engaged in commercial printing and binding in Texas, seek to enjoin directors and executive officers of more than thirty departments and agencies of the State of Texas from purchasing or using printing equipment claimed to be in derogation of Article XVI, section 21, of the Constitution and statutes enacted under authority of the Constitution.

*850The attorney general, representing the state officials who were named defendants, filed special exceptions, which the trial court sustained, based in…