Royce Colors, a division of Royce International, manufactures and sells some of the finest basic dyes and pigment dispersions in North America for shading paper. They reach out to customers not only with excellent colorants but with the support and application knowledge to make them most effective. Royce works with only a few select supplier companies to provide a holistic approach to color management in the paper industry. Contact Tim Bubniak at 518-527-6294 to discuss how they may serve you. I've been very impressed with the responsiveness of Royce Colors and with the quality of the products they sell and stand behind! - Mark D. Crable, President, CRABLE ENGINEERING LLC, The Color Solutions Company