Archived from groups: comp.periphs.printers (
More info?)
One of many descriptions of glycol ethers:
Glycol Ether
Ethylene Glycol Monoethyl Ether
Ethylene Glycol Monobutyl Ether
Propylene Glycol Monomethyl Ether
Chemical Backgrounder
Description:
Glycol ethers are general solvents, also known as cellosolves, which are
used in the semiconductor industry. They are also used in surface
coatings, such as lacquers, paints, and varnishes; fingernail polishes
and removers; dyes; writing inks; cleaners; and degreasers. Three
important glycol ethers are ethylene glycol monoethyl ether (CAS
#110-80-5), ethylene glycol monobutyl ether (CAS #111-76-2), and
propylene glycol monomethyl ether (CAS #107-98-2).
Ethylene glycol monoethyl ether is used in varnish removers, lacquers,
and as a solvent for printing inks, duplicating fluids, and epoxy.
Ethylene glycol monobutyl ether is used in hydraulic fluids, as a
coupling agent for water-based coatings, in vinyl and acrylic paints and
varnishes, and as a solvent for varnishes, enamels, spray lacquers, dry
cleaning compounds, textiles, and cosmetics.
Propylene glycol monomethyl ether is primarily used in the manufacture
of lacquers and paints, as an anti-freeze in industrial engines, a
tailing agent for inks used on very high-speed presses, a coupling agent
for resins and dyes in water-based inks, and a solvent for celluloses,
acrylics, dyes, inks, and stains. It is also used in cleaning products
such as glass and rug cleaners, carbon and grease removers, and paint
and varnish removers; and in pesticide formulations as a solvent for
applications to crops and animals.
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Seems to me they are solvents... And yes, I fully understand that water
is the principal solvent used in the inkjet inks used by consumer inkjet
printers. However, the reason why ammoniated window cleaner works so
well on unclogging inkjet ink is due to both the ammonia and the glycol
solvent in the liquid.
I would agree that the polymer resin in pigment inks is a carrier rather
than a solvent.
Art
WeInk.com Technical Support wrote:
> Those items, while present in some inks do not
> constitute the base AND are soluble in the water
> NOT acting a solvent
>
> Glycol is not used as a solvent in inkjet inks, it is used
> for the many purposes you have described Art, but in the case of
> inkjet ink it is not acting as a solvent. More as a wetting agent.
>
> The polymers used to encapsulate pigments are not acting as solvents.
>
> I have the following basic information about inkjet inks that would
> most useful to everyone, posted here:
>
>
http://www.weink.com/ecom/support/technotes/tsn16.htm
>
>
http://www.weink.com/ecom/support/technotes/tsn01.htm
>
>