Cotton in 1764: Spinning Jenny
Declared reaction class in this atlas: combustible fibre (treatments vary). Assemblies still need resistance tests. Keep Cotton with “Spinning Jenny” and 79 from 1764. Thermal mark 40/100 versus the atlas. Conductivity note: low (textile still air).
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, 1764, and 79. “Spinning Jenny” is the condition on the figure. Keep Cotton with “Spinning Jenny” and 79 from 1764. 791764
Figures to keep
- Year of the condition
- 1764
- Property figure
- 79
- Material
- Cotton
- Use line
- Spinning Jenny
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