Visual Secret of Glacier Blue
Glacier blue is not a single color but a gradient series from extremely light (near white) to deep (approaching Prussian blue). Glaciers appear blue because ice crystals absorb red and yellow from the spectrum, reflecting only blue — this physical color mechanism has surprising parallels with "subtractive mixing" in dyeing processes.
Aurora Print: Technical and Artistic Extreme Challenge
The aurora's colors come from atmospheric gas particles at different altitudes excited by solar wind: red at 200km, green at 100-120km, blue-violet at 80-90km. Translating this multi-layered, semi-transparent, flowing color onto printed fabric requires multi-layer overprinting + partial foiling + fluorescent inks combined. Japanese print factory Aizome Bedding has developed "aurora print fabric" that glows at night, priced at 5x regular printed fabrics.