The 551 Direct Print ColorPRO Series is a Phthalate Free ink to ink colour matching system for direct and transfer printing. Precise, simple to use, and easily repeated – all factors important to today’s screen printer, the 551 Direct Print ColorPRO Series produces simulated Pantone colors using 12 ink colors (including black and white and base). 551 Direct Print ColorPRO Series is a Pantone licensed system which means you will produce the most exact color. All of the colors have been mixed and test printed then transferred onto T-shirt fabrics. Simply select a color from your Pantone Color Formula Guide and find the formula in the ColorPRO Mixing Software. Formulations are based on weight and are extremely easy to follow.