What “the material” actually is
ポリエステル is sold as grades, not as a single substance. Chemistry (C10H8O4)n PET, density ~1.38 g/cm³, heat band ~250–260 °C.
This atlas treats ポリエステル as a system: mill route, coatings, tests and the cavity it sits in.
基本データ
PETResin
~255 °CTm
Melt-dripFire
Dacron / TeryleneIcon
MicrofibresIssue
textilesFamily
ポリエステル is one of 32 materials in this atlas, grouped under textiles: history, structure, measured properties, process routes, uses, safety and market — not a product catalogue.
Scores compare ポリエステル 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.
深く読む
Deep dive: ポリエステル
ポリエステル ((C10H8O4)n PET) is a family of grades whose density ~1.38 g/cm³, heat band ~250–260 °C, and fire letter melts and drips unless FR.
Heat, fire and insulation
Conductivity note: low solid; fabrics trap air. Insulation score 50/100 is relative to 32 entries — metals lose, VIPs and aerogels win.
Fire letter in editorial use: melts and drips unless FR. Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide.
How it is made and used
Origin: Whinfield & Dickson 1941 / DuPont Dacron, United Kingdom / US. The process chapter follows feedstock → conversion → forming → finish → install.
Uses span buildings to defence / safety. Pairings matter: nylon.
Market and circularity
Producers below are landmarks, not an endorsement ranking. Prices are bands, not live quotes.
Circularity mark 34/100. Ask which scrap, which certificate, which year.
プロファイル
強度
58
耐熱
42
火災性能
24
断熱
50
加工性
88
循環性
34
七つの章
よくある質問
Is ポリエステル non-combustible?
Declared reaction class in this atlas: melts and drips unless FR. Assemblies still need resistance tests.
Does ポリエステル insulate?
Thermal mark 50/100 versus the atlas. Conductivity note: low solid; fabrics trap air.
What is the density band?
~1.38 g/cm³
How is it made?
Origin story: Whinfield & Dickson 1941 / DuPont Dacron (United Kingdom / US).
Can it be recycled?
Circularity mark 34/100 — editorial, route-specific.
Typical melting or failure heat?
~250–260 °C
What should it be paired with?
nylon: The polyamide rival: tougher wet, different dye class.
Where is it specified?
Buildings, transport, energy and consumer goods — see the uses chapter.
アイコン
Terylene
United Kingdom · 1941–
Terylene is a reference point in the public image of ポリエステル.
Dacron sailcloth
United States · 1950s–
Dacron sailcloth is a reference point in the public image of ポリエステル.
Polar fleece
United States · 1980s–
Polar fleece is a reference point in the public image of ポリエステル.
PET bottle
United States · 1973–
PET bottle is a reference point in the public image of ポリエステル.
Suiting blend
Global · 1960s–
Suiting blend is a reference point in the public image of ポリエステル.
Seat belt HT
Global · 1960s–
Seat belt HT is a reference point in the public image of ポリエステル.
Geotextile
Global · 1970s–
Geotextile is a reference point in the public image of ポリエステル.
rPET jersey
Global · 2000s–
rPET jersey is a reference point in the public image of ポリエステル.
アイコンのオンオフで、棒が選択内の首位に合わせて再スケールされる。
5 / 8
対戦
同じ家族、違う点数 — 一戦を選ぶ。
近い素材
六軸で最も近い隣人 — 強度、耐熱、火災、断熱、加工性、循環性。