Digital BW, The Print

I've noticed the hinge outline popping up too lately with the Lineco 
gummed archival hinging tape. I don't think it has so much to do with 
the hinging method used (well...unless you were using a really thin 
tissue), but more to do with the really powerful spring clips that come 
with the Nielsen frames I buy. They put a lot of pressure on the 
mat/photo/glass sandwich. Maybe I just need to be buying frames with a 
deeper channel--or switch to wood, which is more of a pain IMO?

Doug

> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, James Irelan
>> I mounted with archival cotton hinges once, but the outline of the
>> hinge was noticable through the paper.  Maybe I used too heavy a 
>> hinge,
>> or got it too moist or something.
>>
>> James
>
> Interesting, I have not heard about that problem before. Since my
> photographs are not exactly priceless works of art, I do not use the
> wheat or rice starch adhesives. Instead, I use Lineco
> (http://www.lineco.com) Self Adhesive tissue. It is just like using
> regular tape except you have to peal a backing off. It is
> acid/lignin-free and very convenient. I have been thinking about
> offering it is an accessory for my frames.
>
> Mark Rogers

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Doug I.
<puzzolente@s...> wrote:
> I've noticed the hinge outline popping up too lately with the
Lineco 
> gummed archival hinging tape. I don't think it has so much to do
with 
> the hinging method used (well...unless you were using a really thin 
> tissue), but more to do with the really powerful spring clips that
come 
> with the Nielsen frames I buy. They put a lot of pressure on the 
> mat/photo/glass sandwich.

I doubt that that this can explain the "outline" problem--which I
haven't (yet) encountered with my Lineco hinging tape. The Nielsen
springs do exert a lot of pressure, but it's concentrated at the
extreme edge of the sandwich. With the usual cardboard backing, this
pressure will likely be very much diminished within the window area of
the mat (unless your mats have _very_ narrow borders). However I
wonder if the outline problem might be due to your method of hinging:
do you use a "T-hinge" or a "V-hinge" method?  With the "T" method the
hinge is taped to the backing board well _above_ the print (under the
mat border) so that only a relatively short, single layer of tape is
under the print. But in the "V" method, the hinge is _folded_ and so
several layers of tape lie beneath the print, and this could increase
the possibility of a visible outline.

Another possible explanation for development of a tape outline could
be if there's any differential swelling/shrinking between the print
and tape. For example the print paper might undergo a slight overall
expansion due to humidity changes, but this change might be prevented
within
the small area(s) that are tightly glued to the hinge tape. This then
might
produce an outline of the hinge--especially if the glue (gum) dries
down to a rigid, glassy substance (gelatin glues do this). Of course
the liklihood of humidity-induced dimension change depends very much
on the paper type.

Phil

First of all, bend those clips so they don't apply so much pressure -
just flatten them out a bit until they fit with a lot less pressure.
And don't use more than one for every 6 or 8 inches of frame length or
less, depending on the stiffness of your backer. Eventually, you'll
have a nice collection of the excess shiny metal spring clips that the
frame makers include with all frame sizes, no matter how small; with
luck they might one day become collector's items!

I've noticed the impressions of the glued linen tape on my recent
Ilford Smooth Pearl prints, but not on older EEM or Museo papers,
maybe due to ISP's sort of glossy surface. The ISP dents show up even
with the relatively lower pressure, unbent, clips I've been using for
years, but I think it is really due to the wetness of the tape when it
goes on, which might be causing softening and expanding the paper,
because I found it on prints that had not been framed yet, they were
lying on my mat table for a few days with only the weight of one sheet
of 1/8 foam core on top.

I have had to resort to using an "Artist's" tape for mounting that
paper instead of the more archival linen.

Frank


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Doug I.
<puzzolente@s...> wrote:
> I've noticed the hinge outline popping up too lately with the
Lineco 
> gummed archival hinging tape. I don't think it has so much to do
with 
> the hinging method used (well...unless you were using a really thin 
> tissue), but more to do with the really powerful spring clips that
come 
> with the Nielsen frames I buy. They put a lot of pressure on the 
> mat/photo/glass sandwich. Maybe I just need to be buying frames
with a 

> deeper channel--or switch to wood, which is more of a pain IMO?
> 
> Doug
>

They don't put any pressure on the print unless you matte so that is touches the glass.

Have you tried self adhesive tape.  Don't know if it would help, but might.  Or use heavier 
paper?

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Doug I. <puzzolente@s...> wrote:

> I've noticed the hinge outline popping up too lately with the Lineco 
> gummed archival hinging tape. I don't think it has so much to do with 
> the hinging method used (well...unless you were using a really thin 
> tissue), but more to do with the really powerful spring clips that come 
> with the Nielsen frames I buy. They put a lot of pressure on the 
> mat/photo/glass sandwich. Maybe I just need to be buying frames with a 
> deeper channel--or switch to wood, which is more of a pain IMO?
> 
> Doug
> 
> > --- In DigitalBlackandWhiteThePrint@yahoogroups.com, James Irelan
> >> I mounted with archival cotton hinges once, but the outline of the
> >> hinge was noticable through the paper.  Maybe I used too heavy a