Archived from groups: comp.periphs.printers (
More info?)
I think it isn't possible someone to make a white pigmented ink for inkjet
printers. Inkjet inks normaly contains 5-10% of pigment load, this amount is
not enough to cover the paper color. Even if someone use a high load pigment
ink (e.g. 30%), things won't be better because of paper absobment. Think it
like painting a black wallpaper! It is needed a thick coat of ink to cover
the behind black color.
I have done some experiments with white ink [a 10% load, not well formulated
ink], it wasn't noticable in the black paper!!!
--
Yianni
in@mailbox9.gr (remove number nine to reply)
--
"jbuch" <jbuch@CUTHERErevealed.net> wrote in message
news:c6gli6020kl@enews2.newsguy.com...
>
> Hecate wrote:
>
> > On Sat, 24 Apr 2004 18:56:56 GMT, Colin J Denman
> > <spam@cjdenman.freeserve.co.uk> wrote:
> >
> >
> >>Curious to know if other colours of paper can be used as a base,
> >>particularly black paper to print predominantly black images, with the
> >>intention of saving ink. e.g the kind of astronomical image at the
hubble
> >>telescope site.
> >>
> >>Any experiences? What needs to be done to the image? Using an Epson
> >>durabrite CMY system.
> >
> >
> > You can't use black paper. For a start Google for additive and
> > subtractive colours and you'll see why. The *very* simple explanation
> > is this - printers use paper white as white. If you print on any
> > colour paper white will come out as whatever the base colour of the
> > paper is. Other colours will be affected as well. As for black
> > paper...just imagine what will happen when the printer is printing
> > based on white being the paper colour...
> >
> > --
> >
> > Hecate
> > Hecate@newsguy.com
> > veni, vidi, reliqui
>
> There is no "White Dye".
>
> A white "ink" requires a white pigment. The white pigment reflects the
> oncoming light of all incident light colors (wavelengths, actually)
> pretty equally and has very little color tone itself (in other words,
> white pigment is about as clear as glass... and finely ground clear
> glass powder makes a fairly good white pigment).
>
> There may well be no white pigmented inkjet inks.
>
> The market is real small compared to black or other colored dye or
> pigment based inks. So, one might go broke trying to sell "White" inkjet
> inks, especially if the pigments clogged heads in dye based printer
designs.
>
> White paint is typically fine titanium dioxide pigment in a carrier
> fluid which also contains a glue like substance to make the white
> pigment stick to what is painted.
>
> On the other hand, the wax printers may have white colored wax sticks to
> do what you want. I haven't heard that they do, but they might, or might
> not.
>
>
>
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