Historically, old dyes weren't mixed due to limitations in understanding chemical reactions and the lack of precise control over dyeing processes. Each natural dye required specific conditions, such as pH levels and temperatures, to achieve the desired color. Mixing different dyes could result in unpredictable outcomes or inferior color quality, since the chemical constituents in one dye could react negatively with those in another, leading to dull or unexpected colors. Additionally, the art of dyeing was often a closely guarded secret, with knowledge passed down within families or guilds, which may have limited experimentation. Over time, as the science of chemistry evolved and synthetic dyes were developed, the understanding of how to mix dyes to achieve a wide palette of colors improved significantly.

Superfine yarn refers to a category of yarn characterized by its exceptionally thin threads, which are finer than what is typically found in standard yarn classifications. This fine quality allows for the creation of lightweight, densely knitted or woven fabrics ideal for luxury clothing and intricate textile projects. Superfine yarn often results from using high-quality fibers such as merino wool, silk, or synthetic blends designed to mimic these premium materials. Due to its delicate nature, it requires careful handling during the knitting or weaving process but produces garments with superior softness, drape, and detail resolution. Ideal for projects aiming for a refined finish, superfine yarn is a favorite among experienced knitters and designers seeking to elevate their work.

The "Ink & Sigil" series by Kevin Hearne is where one might confuse the title "Ink Blood Sister Scribe" as a part of. Although "Ink Blood Sister Scribe" itself does not directly appear to be a known book or series title as of my last knowledge update in 2023, it's possible that it could be a lesser-known work, a new release, or perhaps a misunderstanding of a title from a similar genre. Kevin Hearne's series, beginning with "Ink & Sigil," is known for exploring themes involving magic, ancient scripts, and the power of ink, which might lead to this association. If you're interested in themes of scribes, magic, and the mystical power of writing, "Ink & Sigil" could be a great series to start with while searching for the exact title you're asking about.