On 29/06/18 22:19, Steven Greenfield AE7HD via Groups.Io wrote:
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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.
