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Negative Envelopes, Conventional Style


Conventional style negative envelopes, without thumb cuts, are made from your choice of three papers, including two different MicroChamber papers. Acetic acid is a primary by-product of the deterioration of film, so the capacity of a MicroChamber paper to remove 170 times more acetic acid than a buffered-only paper is of importance for the preservation of photographic film. Our negative envelopes have side and bottom outside seams to relieve pressure on film stored within them, and all of them pass the P.A.T. They are offered in our traditional non-buffered, lignin-and sulfur-free .006 CRPP paper, in alkaline buffered MicroChamber paper, and in MicroChamber/Silversafe, a combination of the two most highly valued compositions in conservation. In the MicroChamber/Silversafe envelopes, both MicroChamber paper and Silversafe paper are integrated within one single (not laminated) sheet of paper. The patented alkaline pH 8.5 tan MicroChamber component with alkaline buffers and our proprietary hydrophobic, acid-resistant zeolite provides the finest protection available against acids, by-products of deterioration and pollutants, while the soft white Silversafe neutral pH, non-buffered cotton layer comprising the interior surface of the enclosure, provides security for those materials which may have a sensitivity to alkalinity.  Envelopes are available in units of 100 of a given size.

 

 

Item #

Paper

100 (min)

500-999

1000-2499

2500+

4 3/8 x 5 3/8

 

 

 

 

 

CNE-45-NB

Non- buffered

$22.00/C

16.50/C

15.95/C

15.10/C

CNE-45-MC

MicroChamber

$25.50/C

22.50/C

21.75/C

20.90/C

CNE-45-MCS

MicroChamber/Silversafe

$25.50/C

22.50/C

21.75/C

20.90/C

5 3/8 x 7 3/8

 

 

 

 

 

CNE-57-NB

Non-buffered

$22.00/C

18.95/C

17.95/C

16.75/C

CNE-57-MC

MicroChamber

$26.50/C

24.50/C

23.40/C

22.90/C

CNE-57-MCS

MicroChamber/Silversafe

$26.50/C

24.50/C

23.40/C

22.90/C

8 1/2 x 10 1/2

 

 

 

 

 

CNE-810-NB

Non-buffered

$38.00/C

34.95/C

33.95/C

32.50/C

CNE-810-MC

MicroChamber

$44.50/C

42.95/C

41.95/C

40.95/C

CNE-810-MCS

MicroChamber/Silversafe

$44.50/C

42.95/C

41.95/C

40.95/C