Instant Imprints, a company that offers screen printing, embroidery, signage and promotion productions under one roof, is planning to open six new franchise retail centers in the Rockdale, Newton and Walton county area. The San Diego-based company is making an aggressive push to expand the number of stores throughout the country, and Jay Holguin, vice president of marketing, said the Atlanta market is a focus area. Holguin said Instant Imprints wants to open 500 stores during the next five years.