Ink washing is diluting your ink drawing by dragging a puddle of h2o through the page, just like watercolour painting techniques. The higher the focus of ink, the denser your shadowing. For artists who would like to generate ink washes with India ink, watercolour paper is the best option https://ink-pen-drawing-technique00976.blogchaat.com/34971400/5-tips-about-ink-pen-drawing-techniques-you-can-use-today