Silk in 1930s: Nylon threat
Read the condition on Silk before the nickname. Year 1930s, line “Nylon threat,” figure 1930. Circularity mark 50/100 — editorial, route-specific. A material is what it is made of, the condition it survives, and where it goes afterward. Silk under “Nylon threat” in 1930s should say which, with 1930 tied to the condition. A figure with no condition is a boast. Readers meet the name on the back of a product, so the code and the history should not share one sentence.
Scores compare Silk with the rest of the atlas on strength, heat, fire behaviour, insulation, workability and circularity. They are editorial, not certificates. Seven chapters follow. Fire and insulation claims name test families (Euroclass, ASTM E84, ISO 5660, KS F) rather than inventing a single safety number.
Silk (fibroin + sericin) is a family of grades whose density ~1.34 g/cm³, heat band degrades; no thermoplastic melt, and fire letter combustible protein. Silk is sold as grades, not as a single substance. Chemistry fibroin + sericin, density ~1.34 g/cm³, heat band degrades; no thermoplastic melt.
This atlas treats Silk as a system: mill route, coatings, tests and the cavity it sits in. Conductivity note: low. Insulation score 34/100 is relative to 32 entries — metals lose, VIPs and aerogels win. Fire letter in editorial use: combustible protein. Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide.
The label keeps Silk, 1930s, and 1930. “Nylon threat” is the condition on the figure.1930s
Figures to keep
- Year of the condition
- 1930s
- Property figure
- 1930
- Material
- Silk
- Use line
- Nylon threat
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