On 29/06/18 22:19, Steven Greenfield AE7HD via Groups.Io wrote:
...
> Regular inkjet transparency films are not necessarily the best for this.
> In the screenprint trade, inkjets are used to make transparencies as the
> screens are coated with a UV exposeable coating. There are
> transparencies made specifically for this that are made to accept a very
> heavy ink load. They are not the standard overhead projector
> transparency, these look like vellum.

The UV films with a slightly tacky surface are gelatine coated.

The gelatine only absorbs dye ink, because the dye ink has no solid
particles in it. The pigment ink *has* got particles, and will not dry.

I'm using an Epson Artisan 1430 which uses dye ink.
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I just made a new double-sided pcb yesterday and can start testing the
circuit today.

So china doesn't solve everything.