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Subject: Re: [Homebrew_PCBs] Pigment-based ink as resist?

From: "Stefan Trethan" <stefan_trethan@...>
Date: 2006-04-11

On Tue, 11 Apr 2006 00:37:00 +0200, kilocycles <kilocycles@...>
wrote:

> Group,
>
> I gave a presentation to a group on toner transfer over the weekend.
>
> One of the guys has a high-end Epson inkjet printer that uses pigment
>
> instead of dye; it's the type used for very long term archive images,
>
> and does gigle printing as well. There is a straight feed-through on
>
> his printer for up to 1/16" inch media.
>
>
> The question is, will this pigment-based inkjet ink stand up to
>
> etchant if the image is printed directly on the copper?
>
>
> Regards,
>
> Ted


The question is, can it be printed directly on copper so that it a) sticks
b) forms a continous layer and c) acts enough as a resist.

Why not try?
If copper foil is not available a piece of aluminum foil taped to a sheet
of paper should be a close enough substitute for testing a) and b).

ST