Dyeing linings and colour fastness
Disperse dyes on polyester taffeta, acid dyes on acetate and nylon, grey scales and the tests that stop a lining from staining a shirt.
Chemical compliance for trims: REACH, OEKO-TEX, CPSIA and Prop 65
How buttons, snaps, laces and cords actually get tested for the EU and the US — content limits versus release limits, and what a CPC is for.
Lining construction and specs: T, denier, gsm, slip and tear
190T and 210T polyester taffeta, yarn denier, mass, down-proof finishes — the numbers on a lining mill ticket that are not a colour card.
Lining fibres and hand: polyester, acetate, cupro, viscose
What a lining is for — slide, hide, a little warmth — and how polyester taffeta differs from Bemberg cupro, acetate and viscose in a jacket.
Tooling a custom zinc trim
DFM for Zamak die-casting: wall thickness, draft, T0 shots and how NRE should appear on a garment-hardware quote.
Testing interlinings: peel, shrinkage and rebound
Bond strength, wash and dry-clean dimensional change, stiffness and strike-back — the lab list that belongs on a fusible, not only a hand iron.
