Digital BW, The Print

The only prints for which I even consider buffered are b&w silver prints.  The typical reason for the buffering is to overcome residual acid, which should not be present in any of inkjet prints, platinum-palladium, chromogenic, etc.  Buffering, in fact, can damage chromogenic prints (according to Light Impressions).  It seems to me that I would follow the advice of the person working there.  Hope this helps.  Jim

  ----- Original Message ----- 
  From: brucercohio 
  To: DigitalBlackandWhiteThePrint@yahoogroups.com 
  Sent: Friday, January 06, 2006 3:10 PM
  Subject: [Digital BW] Buffered or Unbuffered Matt Board


  Hi all

  Does anyone have guidance on when to use a "buffered" or "unbufferd" 
  matt board?

  Today a person at "Light Impressions" told me to use a "Non Buffered" 
  matt board for both digital pigment or dye ink prints.  In one of 
  their catalogue advertisements on page 10 they say to use a non 
  buffered board for albumen, dye transfer or chromogenic prints yet 
  other advertisements in their literature shows color prints in a 
  buffered matt board.

  Any help would be appreciated

  Bruce 





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[Non-text portions of this message have been removed]

Do you consider pigments to be acidic? 

If one is using acid-free paper and pigment ink, I'd stick to a 
BUFFERED board and mat.

Below was taken from the Light Impressions website and describes when 
and why a NON-BUFFERED should be used.


"When you're matting certain types of photographs, such as albumen, 
dye transfers, or chromogenic prints, and textiles, like silk and 
wool, use non-buffered board. Putting a buffered mat next to the 
acidic dyes in these materials could cause a color shift. It's 
manufactured with a pH value of 7.5 +/- .5, and because it is not 
buffered, the pH value will drop when exposed to normal atmospheric 
conditions." 

http://www.lightimpressionsdirect.com/servlet/OnlineShopping?
Dsp=20300&PCR=30000:230000:232000:232100:232110

I've used nothing but and acid-free, 100% rag buffered board for 
silver gelatin and pigment on paper prints and have never had any 
problems.


Scott

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Platinum Jim" 
<platinumjstrain@a...> wrote:
>
> The only prints for which I even consider buffered are b&w silver 
prints.  The typical reason for the buffering is to overcome residual 
acid, which should not be present in any of inkjet prints, platinum-
palladium, chromogenic, etc.  Buffering, in fact, can damage 
chromogenic prints (according to Light Impressions).  It seems to me 
that I would follow the advice of the person working there.  Hope 
this helps.  Jim
>   ----- Original Message ----- 
>   From: brucercohio 
>   To: DigitalBlackandWhiteThePrint@yahoogroups.com 
>   Sent: Friday, January 06, 2006 3:10 PM
>   Subject: [Digital BW] Buffered or Unbuffered Matt Board
> 
> 
>   Hi all
> 
>   Does anyone have guidance on when to use a "buffered" 
or "unbufferd" 
>   matt board?
> 
>   Today a person at "Light Impressions" told me to use a "Non 
Buffered" 
>   matt board for both digital pigment or dye ink prints.  In one of 
>   their catalogue advertisements on page 10 they say to use a non 
>   buffered board for albumen, dye transfer or chromogenic prints 
yet 
>   other advertisements in their literature shows color prints in a 
>   buffered matt board.
> 
>   Any help would be appreciated
> 
>   Bruce 
> 
> 
> 
> 
> 
>   Please visit the Group Homepage to check the Files, and other 
resources as they are often being updated.
> 
>   http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint
> 
>   If you wish to receive no emails or just a daily digest, or you 
wish to unsubscribe, please edit your Membership preferences by 
visiting this same page.
> 
>   Please follow these basic guidelines:
>   - As threads develop, trim off excess portions of earlier 
messages to keep them short.
>   - Good manners are required at all time. No personal attacks or 
flames. Hostile, aggressive or argumentative users may be removed 
from the membership without notice.
>   - Keep your posts and threads related to the group topic of 
digital B&W printing. Users who persistently make off-topic posts may 
be removed from the membership.
>   - By posting on this forum you agree to abide by the group rules 
and guidelines, and to abide by the actions and decisions of the 
group Owner and Moderators. See "Group Topic, Rules and Guidelines" 
in the Files section:
>   http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/
> 
>   BY PARTICIPATING IN AND/OR POSTING MESSAGES TO THE DIGITAL BW, 
THE PRINT YAHOO! GROUP YOU EXPRESSLY UNDERSTAND AND AGREE THAT 
THE "OWNER" AND "MODERATORS" OF DIGITAL BW, THE PRINT YAHOO GROUP 
SHALL NOT BE LIABLE TO YOU FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
SPECIAL, CONSEQUENTIAL OR EXEMPLARY DAMAGES, INCLUDING BUT NOT 
LIMITED TO, DAMAGES FOR LOSS OF PROFITS, GOODWILL, USE, DATA OR OTHER 
INTANGIBLE LOSSES (EVEN IF THE  "OWNER" AND "MODERATORS" OF DIGITAL 
BW, THE PRINT YAHOO GROUP HAVE BEEN ADVISED OF THE POSSIBILITY OF 
SUCH DAMAGES), RESULTING FROM: (i) THE USE OR THE INABILITY TO USE 
THE DIGITAL BW, THE PRINT YAHOO GROUP; (ii) UNAUTHORIZED ACCESS TO OR 
ALTERATION OF YOUR TRANSMISSIONS OR DATA; (iii) STATEMENTS OR CONDUCT 
OF ANY THIRD PARTY ON THE DIGITAL BW, THE PRINT YAHOO GROUP; OR (iv) 
ANY OTHER MATTER RELATING TO THE DIGITAL BW, THE PRINT YAHOO GROUP.
> 
> 
> 
> 
> --------------------------------------------------------------------
----------
>   YAHOO! GROUPS LINKS 
> 
>     a..  Visit your group "DigitalBlackandWhiteThePrint" on the web.
>       
>     b..  To unsubscribe from this group, send an email to:
>      DigitalBlackandWhiteThePrint-unsubscribe@yahoogroups.com
>       
>     c..  Your use of Yahoo! Groups is subject to the Yahoo! Terms 
of Service. 
> 
> 
> --------------------------------------------------------------------
----------

> 
> 
> 
> [Non-text portions of this message have been removed]
>

Just a note, take a look at the pH of some of the fine art type 
papers. Many of the Hanhemuhle papers are listed as being slightly 
basic. And if the inks the Epson uses really do contain ammonia, then 
they are also probably slightly basic.

> 
> Just a note, take a look at the pH of some of the fine art type
> papers. Many of the Hanhemuhle papers are listed as being slightly
> basic.

All the good matte inkjet papers are buffered.  

> And if the inks the Epson uses really do contain ammonia, then
> they are also probably slightly basic.

Ammonia is a gas, so I doubt it's in the paper.  I've used ammonia to
neutralize silver prints that became acidic due to atmospheric pollutants.
A cap of household ammonia liquid (water with ammonia gas dissolved in it)
in a bag with an acidic paper gets the acids out in just a matter of minutes
-- even EEM.  Of course, if it's EEM or a similar paper with an acid
reservoir like lignin in it, the paper once again becomes acidic.  The
silver prints I've de-acidified this way seem to stay neutral after the
treatment -- at least until the airborne acids get to them again.

Paul
www.PaulRoark.com