Excuse me. Do you know which paper Daniel Smith used to illustrate textured colors like the sample above?
Thank you for your enquiry.
John Cogley, the owner of Daniel Smith Artists materials, filmed with the SAA and did a fantastically informative video. The paper used for the swatches was a deckled edged 100% cotton papers Arches Watercolour paper.
A rough surface will increase the granulation qualities of a colour.