Cotton in 20: Upland vs Pima
Staple length split commodity from luxury. Keep Cotton with “Upland vs Pima” and 20 from 20. DMDHEU and kin wrinkle-finished cotton at a formaldehyde cost. GE insect resistance remade pest programmes — and controversies.
This atlas treats Cotton as a system: mill route, coatings, tests and the cavity it sits in. Conductivity note: low (textile still air). Insulation score 40/100 is relative to 32 entries — metals lose, VIPs and aerogels win. Fire letter in editorial use: combustible fibre (treatments vary). Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide.
Origin: Indus / New World domestication; mill 18th c., India / Americas / Lancashire. The process chapter follows feedstock → conversion → forming → finish → install. Uses span buildings to defence / safety. Pairings matter: polyester. Circularity mark 54/100. Ask which scrap, which certificate, which year.
Related atlas entries, a short glossary, and three threads that keep Cotton honest. The blend partner that dries faster and sheds microfibres. Protein fibre with better inherent insulation when lofted. The stronger synthetic for hosiery and cords. EN 13501-1 reaction-to-fire letter (A1–F), not a wall rating.
The label keeps Cotton, 20, and 20. “Upland vs Pima” is the condition on the figure. Keep Cotton with “Upland vs Pima” and 20 from 20. 2020
Figures to keep
- Year of the condition
- 20
- Property figure
- 20
- Material
- Cotton
- Use line
- Upland vs Pima
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