… the leatherette or whatever the covering was …
Oddly enough, Mark … I happen to know how that material is built
In the summer vacation between School and Uni. I worked at a fabric manufacturer in Lancaster; in their prototype Lab.
My major task there was preparing samples of the stuff.
I never got to see any production machines, but I presume they would just use a continuous version of the Lab process:
A synthetic Velvet is first produced, with the fibres all standing erect [none of your Arty ‘crushed velvet’ effects here] and, in the Lab, put into basically a screen-printing frame.
A polyurethane miix is then spread over it in a thin layer … which adheres to the tips of the fibres, and then sets as a skin.
It’s the fact that the portion of the fibres below the skin and above the base weave can flex which gives the finished material its drape and feel.
The better samples came very close to simulating the look & feel of soft natural leather.
MichaelG.