Man-made (synthetic) fibres are mainly classified based on what they are made from and how they are formed.

Quick Scoop

When textbooks or exams ask “how are man made synthetic fibers classified?”, they usually expect:

  • By chemical nature / origin of polymer
    • Fibres from natural polymers (chemically modified natural materials)
    • Fibres from synthetic polymers (fully man‑made, mostly from petroleum)
    • Fibres from inorganic materials (like glass, carbon, etc.)
  • By process / how they’re made
    • Regenerated (natural material dissolved, then re‑formed)
    • True synthetic (polymer made by chemical reactions like polymerisation)

Think of it as two very common school-level wordings:

  1. Regenerated fibres and synthetic fibres (both are man‑made).
  2. Or, more detailed: natural‑polymer fibres , synthetic‑polymer fibres , and inorganic fibres.

Simple exam-style answer

If you just need a crisp line for an answer:

Man-made (synthetic) fibres are classified according to their chemical composition into fibres made from natural polymers (regenerated fibres), synthetic polymers (true synthetic fibres), and inorganic materials.

This also matches the shorter school version:

Man-made fibres are classified as regenerated fibres (from natural sources like cellulose) and synthetic fibres (from petrochemicals such as polyester, nylon, acrylic).

Tiny breakdown (with examples)

  • Regenerated / natural‑polymer man-made fibres
    • Made from natural polymers like cellulose or protein, but chemically processed and spun again.
    • Examples: rayon, viscose, acetate, lyocell.
  • Synthetic‑polymer fibres
    • Made entirely by chemical synthesis (polymerisation) from petrochemicals.
    • Examples: polyester, nylon (polyamide), acrylic, spandex (elastane), polypropylene.
  • Inorganic man‑made fibres
    • Made from non‑organic materials.
    • Examples: glass fibre, carbon fibre, some ceramic fibres.

All of these are “man‑made”; the “synthetic” label is often used for the fully petrochemical ones (polyester, nylon, acrylic) but in many school texts, “man-made fibres” = regenerated + synthetic.

Information gathered from public forums or data available on the internet and portrayed here.