EPM IMAGELINK Microfilm EPM IMAGELINK Microfilm
IMAGELINK Brown Toner for Extending Microfilm Life
- Model
- IMAGELINK Brown Toner
IMAGELINK Brown Toner converts microfilm image silver to silver sulfide to prevent redox blemishes in new and existing silver-gelatin film.
Key features
- Converts image silver to silver sulfide with high resistance to moisture and oxidants
- No loss of microfilm image quality; image areas may appear blacker or more neutral
- No effect on D-min or clear areas when properly washed
- Can be used in-line (with normal processing) or off-line in deep tank processors
- Can be used in table-top processors such as the IMAGELINK Archive Processor (Prostar)
- Used together with molecular sieves, it significantly extends film life even under adverse conditions
- Effectiveness evaluated per ISO 18915; an image with retained density of 65% or more is considered stable
Description
Some silver-gelatin microfilms develop microscopic red or yellow spots (redox blemishes) after 2 to 20 years of storage. These spots result from localized oxidation of the image silver by atmospheric oxygen, moisture and pollutants such as hydrogen peroxide, ozone, sulfur dioxide and nitrogen oxides, and once formed they cannot be reversed.
IMAGELINK Brown Toner is a chemical treatment that converts the developed silver in the film to silver sulfide, which is far more resistant to moisture and oxidants. Based on tests by Kodak and the Image Permanence Institute (IPI), it prevents the spread of redox blemishes in roll film and is effective for both freshly processed film and existing collections.
Technical specifications
| Catalog number | 140 0928 |
|---|---|
| Packaging | 1 gallon container |
| Dilution in deep tank processors | 1:100 (1 part toner to 100 parts water) |
| Dilution in table-top processors | 1:25 (1 part toner to 25 parts water) |
| Replenishment rate | 16 mm: 0.60 mL/ft, 35 mm: 1.20 mL/ft, 105 mm: 3.60 mL/ft |
| Evaluation standard | ISO 18915 |
| Temperature and time in deep tank | 90°F, dwell time about 60 seconds |
|---|---|
| Temperature and time in table-top processors | 100°F, minimum 33 seconds dwell time |
Applications
- Stabilizing freshly processed silver-gelatin microfilm
- Protecting existing microfilm collections against redox blemishes
- Archives exposed to pollutants, high humidity or poor storage conditions
Accessories
- Molecular sieve (Multisorb) in 16 mm (3.5 grams), 35 mm (7.0 grams) and 105 mm (12.5 grams) sizes; sieve size about 2% of the weight of a polyester film roll or 4% of acetate film
- Developer System Cleaner (Part No. 99 0166 in 64-oz bottle, 6 per case; Part No. 99 0117 in gallon bottle, 4 per case)
Downloads
Related products
- EPM IMAGELINK Microfilm
EPM IMAGELINK Microfilm
EPM IMAGELINK MicrofilmEastman Park MicrographicsIMAGELINK Reference Archive System
IMAGELINK Reference Archive System
Details Inquiry
EPM IMAGELINK Microfilm
Related knowledge
View all
Tech tip · Microfilm
Tech Tip 91: Choosing the Correct IMAGELINK Product
IMAGELINK camera, duplicating, Archive Writer and COM films and processing chemicals grouped by equipment and application, with catalog numbers.
Eastman Park Micrographics
Tech tip · Document Archiving
Core and Reel Cross Reference for New Imagelink Codes
Cross reference of 16mm, 35mm and 105mm plastic cores and spools with center hole configurations for the new Imagelink product codes.
Eastman Park Micrographics