The mainstream in the sheet-fed perfecting press industry is for short time delivery, and sales of sheet-fed perfecting presses that enable printing on both-side surfaces simultaneously are increasing rapidly. However, a problem for short time delivery is ink drying. Both-side water-based coating is a technology that may solve this problem. The establishment of this technology has enabled us to propose a printing method for short time delivery to our customers who are considering establishing their technical superiority in an effort to survive in their industry and pave the way for further expansion of sales of sheet-fed perfecting presses.