GS PLUS inks simulate process colors for vivid, accurate colors. GS means "graphic standard" -- setting the industry standard for color gamut and easy calibration. PLUS means fast print-to-lamination time - - you can produce more work in less time at a better profit margin. With its fast print-to-lamination time and outstanding color range, GS+ is ideally suited for a wide range of applications including photo enlargements, museum and fine art prints, and indoor posters, signs, and banners.