CARMAC® Unbuffered Negative & Print Envelopes – Archival Photo Storage
CARMAC® Unbuffered Negative & Print Envelopes are made for storing photographic negatives and prints in an unbuffered enclosure. The envelopes use lignin-free alpha cellulose paper with an approximate pH of 7.0 and have passed the Photographic Activity Test (P.A.T.).
The choice of an unbuffered enclosure is particularly relevant for sensitive photographic materials that should not be stored with an alkaline reserve. These envelopes use alpha cellulose paper with an approximate neutral pH of 7.0 and are lignin-free for photographic storage. Their side and bottom seam construction adds durability to the envelope, while the P.A.T. qualification provides a specific indication of their suitability for photographic materials. Each pack contains 100 envelopes, with style and dimensions selectable on the product page.
Features:
- Unbuffered, alpha cellulose paper (approx. pH 7.0)
- Lignin-free for safe photographic storage
- Passes Photographic Activity Test (P.A.T.)
- Side and bottom seam construction for durability
- Designed for negatives and photographic prints
- Pack: 100 envelopes
Ideal For:
- Photographic negatives and prints
- Archives, museums, and collections
- Long-term preservation of sensitive materials
- Collections requiring an unbuffered enclosure
Specifications:
|
Specification |
Details |
|
Product |
CARMAC® Unbuffered Negative & Print Envelopes |
|
Material |
Alpha cellulose paper |
|
Buffering |
Unbuffered |
|
Approx. pH |
7.0 |
|
Lignin |
Lignin-free |
|
Photographic testing |
Passes P.A.T. |
|
Construction |
Side and bottom seams |
|
Pack |
100 envelopes |
|
Options |
Style and dimensions |
What are these envelopes made from?
They are made from alpha cellulose paper that is lignin-free and has an approximate pH of 7.0.
Have these envelopes been tested for photographic storage?
Yes. They pass the Photographic Activity Test (P.A.T.), a specific test noted on the product page.
Can I use these envelopes for both negatives and prints?
Yes. Carr McLean specifically lists both photographic negatives and prints as intended applications.
How are the envelopes constructed?
They feature side and bottom seams, providing the envelope with a durable construction.
How many envelopes are included in a pack?
Each pack contains 100 envelopes. Style and dimensions can be selected on the product page.
| SKU | CARMAC® Unbuffered Negative and Print Envelopes |
|---|