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Photo life again...

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SleeperMan

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Jan 9, 2005, 5:05:19 AM1/9/05
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i just remembered about those nice little compact photo printers, like
Canon's CP series. They use some special films, which contain paper and ink.
I just wonder...how do those photos rank in durability...?
And i bet that one photo comes even more expensive...


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Arthur Entlich

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Jan 10, 2005, 9:19:17 AM1/10/05
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You are speaking about dye sublimation printers, in all probability.

Like inkjet, the answer is it depends, in terms of how fade resistant
they are.

Earlier models were terrible, in fact, they were originally used in the
industry principally for proofing with warning not to leave them exposed
to light if you wanted to use them for any color matching. The way they
work is there is a continuous roll of film, slightly larger in width
than the print width they can produce. This roll contains panels of dye
in sequences of CMY and sometimes K, and sometimes a clear topcoat.

The process they uses is each panel is set into place above a specialty
transfer paper which has a surface designed to accept sublimated dye.
Sublimation is the process of a material going directly from a solid to
gaseous state without passing through a liquid phase. Using a special
head with heating elements, similar in some ways to a thermal fax
machine head, but with usually 64/128 or 256 heat levels, the head
translates the image line by line into heat ranges which heats the dye
which is held very close to the transfer paper. The dye then is deposed
onto the receptive surface of the paper in differing densities.

This process is repeated with each dye panel, moving the paper into the
print path 3, 5 or 5 times depending upon how many panels are involved,
building up the colors, and coating.

The results, being continuos tone, are usually very smooth looking, and
the surface of the paper is usually photo-glossy.

Although costs have dropped on the consumables, it is still an expensive
printing technique. The panel set can only be used once per print, and
if you are printing one tiny dot of color in the middle of the print and
nothing more, you still use up a full panel set of dye inks or that one
print. Paper choice is usually limited to one or possibly two surfaces.

To improve permanence, many use a UV clear coat layer as the last panel
to coat the print. You see, the problem is, the very nature of dye
sublimation is the dyes are designed to with heat dissipate into a
gaseous state.

However, dye sublimation dyes have become better, and, although I would
be surprised they meet the permanence of most pigment ink sets, some
newer ones are probably good for dozens of years in dark keeping.

I think the Kodak "instant" prints they offer in those kiosks in
department stores are dye sub and they do claim fairly lengthy
permanence now. Older versions of dye sub printers, even those by Kodak
were fugitive, however.

Art

SleeperMan

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Jan 10, 2005, 11:51:24 AM1/10/05
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Thanks for this detailed info...i guess i'll just stick with normal
printers...


SleeperMan

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Jan 10, 2005, 11:52:39 AM1/10/05
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pu...@purrpurr.com wrote:
> You mean Dye Sub, well the info that was posted here was a bout 7
> Years, I have a Panasonic one and it states on the Front Label Super
> Long life prints

Jesus...if 7 years is Super Long life etc...i wonder what would they call
100 years...ultra fucking looooong extra super life...or what---?
But, to go back to the theme...not worthed...too expensive for just so short
time...


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Safetymom123

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Jan 11, 2005, 6:45:18 AM1/11/05
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If you want long lasting prints from a small printer look at the Epson
Picture Mate. Wilhelm rates the prints at over 100 years.


"SleeperMan" <Sleep...@too.sleepy> wrote in message
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Arthur Entlich

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Jan 11, 2005, 8:25:16 AM1/11/05
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Newer dye sub printers can give better results than 7 years under
similar conditions as the pigment inks are subjected. But to answer
your question... they'd probably call it "eternity print" or some such
thing... I think "century" print is already taken. ;-)

Art

SleeperMan wrote:

SleeperMan

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Jan 11, 2005, 9:27:48 AM1/11/05
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Safetymom123 wrote:
> If you want long lasting prints from a small printer look at the Epson
> Picture Mate. Wilhelm rates the prints at over 100 years.
>
>
But i guess cost is still bigger than ones from normal printer...


Arthur Entlich

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Jan 11, 2005, 12:21:50 PM1/11/05
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The Epson Picture Mate uses a version of the Ultrachrome inks, which
indeed have been rated to be quite fade resistant. They use pigment
colorants.

Art

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Safetymom123

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Jan 11, 2005, 4:36:57 PM1/11/05
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It may be a little more expensive but you have a much longer archival life.
No other printer comes with the offer to buy back the paper that I am aware
of either.


"SleeperMan" <Sleep...@too.sleepy> wrote in message

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Arthur Entlich

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Jan 12, 2005, 9:22:01 AM1/12/05
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Yes somewhat.

Epson has a program on this printer that you are guaranteed your cost
will not be beyond something like $.29 per print (my recall of the print
may be wrong). They provide you with ink and paper together in a pack,
at a cost of $.29/print inclusive, and if you run out of ink before
using up the paper, you send them back the paper you have left, and they
send you a cash refund at $.29 (?) per piece left over.

I guess they figure that's an average price for a photo print from
digital source (I find it a little high, and you have to do all the
work, buy the printer, and pay for mess-ups...) But it is convenient to
have your own photo lab at home, I guess....

Art

SleeperMan

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Jan 12, 2005, 10:13:08 AM1/12/05
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Arthur Entlich wrote:
> Yes somewhat.
>
> Epson has a program on this printer that you are guaranteed your cost
> will not be beyond something like $.29 per print (my recall of the
> print may be wrong). They provide you with ink and paper together in
> a pack, at a cost of $.29/print inclusive, and if you run out of ink
> before using up the paper, you send them back the paper you have
> left, and they send you a cash refund at $.29 (?) per piece left over.
>
> I guess they figure that's an average price for a photo print from
> digital source (I find it a little high, and you have to do all the
> work, buy the printer, and pay for mess-ups...) But it is convenient
> to have your own photo lab at home, I guess....
>
> Art

Thanks to all. It seems i must look at this model...


Bob Headrick

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Jan 12, 2005, 11:11:29 PM1/12/05
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"Arthur Entlich" <arti...@telus.net> wrote in message
news:doaFd.84881$dv1.12491@edtnps89...

> Epson has a program on this printer that you are guaranteed your cost will
> not be beyond something like $.29 per print (my recall of the print may be
> wrong). They provide you with ink and paper together in a pack, at a cost of
> $.29/print inclusive

HP has similar offerings with their "Photo Value Pack". They offer paper and
ink together for 4x6" print costs comparable to the Epson Picturemate offering.
See:
http://search.hp.com/query.html?col=alldocs&la=en&hpvc=US+-+English&qs=&nh=10&lk=1&rf=0&uf=1&st=1&qt=%2Bphoto+%2Bvalue+%2Bpacks+%2B4+%2B6&hpl=0&submitsearch.x=7&submitsearch.y=6

Regards,
Bob Headrick, not speaking for my employer HP


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