Some interesting results regarding 3rd party inks

This is a link to a short article with Henry Wilhelm. The tests were
obviously sponsored by Epson, so you can take them at whatever value you
wish. I would tend to think they are accurate within the context of the
inks which were selected.

The comparison was with Epson Durabrite Ultra inks. Those are pigment
inks and have been unfortunately very problematic for many people in
terms of head clogging. There is no doubt that they have very good
light and ozone stability, however.

The other ink brands are mainly not identified in terms of their
colorant base. I suspect the majority are not pigment, but dye instead.
However, one brand is identified as pigment and it fares worse than
some which are dye.

IMHO, this answers half of the question... most of those 3rd party dye
inks are not very stable, and even one claiming to be pigment is not
either, but the other part of this question is what about better quality
3rd party pigment inks?

If you are using some of the less costly "standard" inks, this article
will be revealing, and you can then decide if this lack of light
stability is significant to you or not.

Lastly, keep in mind that the type of testing Henry Wilhelm does
involves subjecting the prints to quite bright light. It may not
accurately represent long term lower light fading, and if you have
display areas which use lower lux rating, or if you use lighting with a
low UV component (like incandescent) your results will be quite different.

The article by Wayne Cosshall can be found via this link:

http://www.dimagemaker.com/specials/dimw.php


Art

Art

Arthur Entlich wrote:
> This is a link to a short article with Henry Wilhelm.
snip
>
>
> IMHO, this answers half of the question... most of those 3rd party dye
> inks are not very stable, and even one claiming to be pigment is not
> either,
snip

I think that is the crux of what Wilhelm says
>
>
> http://www.dimagemaker.com/specials/dimw.php
>
>
> Art
>
> Art

"Arthur Entlich" <e-printerhelp@mvps.org> wrote in message
news:1HZ_h.161206$aG1.24605@pd7urf3no...
> This is a link to a short article with Henry Wilhelm. The tests were
> obviously sponsored by Epson, so you can take them at whatever value you
> wish. I would tend to think they are accurate within the context of the
> inks which were selected.
>
> The comparison was with Epson Durabrite Ultra inks. Those are pigment inks
> and have been unfortunately very problematic for many people in terms of
> head clogging. There is no doubt that they have very good light and ozone
> stability, however.
>
> The other ink brands are mainly not identified in terms of their colorant
> base. I suspect the majority are not pigment, but dye instead. However,
> one brand is identified as pigment and it fares worse than some which are
> dye.
>
> IMHO, this answers half of the question... most of those 3rd party dye
> inks are not very stable, and even one claiming to be pigment is not
> either, but the other part of this question is what about better quality
> 3rd party pigment inks?
>
> If you are using some of the less costly "standard" inks, this article
> will be revealing, and you can then decide if this lack of light stability
> is significant to you or not.
>
> Lastly, keep in mind that the type of testing Henry Wilhelm does
> involves subjecting the prints to quite bright light. It may not
> accurately represent long term lower light fading, and if you have display
> areas which use lower lux rating, or if you use lighting with a low UV
> component (like incandescent) your results will be quite different.
>
> The article by Wayne Cosshall can be found via this link:
>
> http://www.dimagemaker.com/specials/dimw.php
>
>
> Art

Art - interesting article. Having nothing to do with inks, papers, and
colorfastness, however, how does this world renowned authority on
colorfastness smile with the totally off-color incisor crown that his
dentist foisted onto him. I've seen better color match with temporary
crowns! Is it possible that the dentist used aftermarket colorants in the
porcelain?

Burt wrote:

>
>
> Art - interesting article. Having nothing to do with inks, papers, and
> colorfastness, however, how does this world renowned authority on
> colorfastness smile with the totally off-color incisor crown that his
> dentist foisted onto him. I've seen better color match with temporary
> crowns! Is it possible that the dentist used aftermarket colorants in the
> porcelain?
>
>
Just hope it's not oem. :-)
Frank

Interestingly, I noticed the same thing. In fairness, the materials
have changed considerably over the years and some might have been more
porous years ago allowing for more staining. Or they may have been more
apt to darken years ago. Also, if he has ever had his teeth
brightened, the crown or filling may have been installed after a
brightening procedure, and then his teeth might have been allowed to
darken again over time. Coffee, tea, cigarettes all are bad news for
teeth in terms of staining.

Or, his dentist may be blind, who knows ;-)

Art


Burt wrote:

> "Arthur Entlich" <e-printerhelp@mvps.org> wrote in message
> news:1HZ_h.161206$aG1.24605@pd7urf3no...
>
>>This is a link to a short article with Henry Wilhelm. The tests were
>>obviously sponsored by Epson, so you can take them at whatever value you
>>wish. I would tend to think they are accurate within the context of the
>>inks which were selected.
>>
>>The comparison was with Epson Durabrite Ultra inks. Those are pigment inks
>>and have been unfortunately very problematic for many people in terms of
>>head clogging. There is no doubt that they have very good light and ozone
>>stability, however.
>>
>>The other ink brands are mainly not identified in terms of their colorant
>>base. I suspect the majority are not pigment, but dye instead. However,
>>one brand is identified as pigment and it fares worse than some which are
>>dye.
>>
>>IMHO, this answers half of the question... most of those 3rd party dye
>>inks are not very stable, and even one claiming to be pigment is not
>>either, but the other part of this question is what about better quality
>>3rd party pigment inks?
>>
>>If you are using some of the less costly "standard" inks, this article
>>will be revealing, and you can then decide if this lack of light stability
>>is significant to you or not.
>>
>>Lastly, keep in mind that the type of testing Henry Wilhelm does
>>involves subjecting the prints to quite bright light. It may not
>>accurately represent long term lower light fading, and if you have display
>>areas which use lower lux rating, or if you use lighting with a low UV
>>component (like incandescent) your results will be quite different.
>>
>>The article by Wayne Cosshall can be found via this link:
>>
>>http://www.dimagemaker.com/specials/dimw.php
>>
>>
>>Art
>
>
> Art - interesting article. Having nothing to do with inks, papers, and
> colorfastness, however, how does this world renowned authority on
> colorfastness smile with the totally off-color incisor crown that his
> dentist foisted onto him. I've seen better color match with temporary
> crowns! Is it possible that the dentist used aftermarket colorants in the
> porcelain?
>
>