Wrinkle-free shirts and permanent creases

[BrianS]

What makes “wrinkle-free” shirts and pants, wrinkle free?

And how does the manufacturer of Dockers pants create the permanent crease in their product?

[BrianS]

I think this deserves a bump.

(well, of course I do, it’s my thread)

[Waenara]

From this site:

*The wrinkle free finish ( also known as “Easy Care”, Durable Press", “Wrinkle-Resistant”, “Wash and Wear”, “No-Iron” etc. ) is obtained by cross-linking cotton. Permanent press finishes function by forming cross-links between adjacent cellulose polymer chains, these give cotton some elastic and resiliency properties. Such cross-linked cotton can recover from deformation stresses and thus wrinkles will not form. *

I also found this old thread on the subject.