Archival as a marketing aspect is an interesting approach. While in the world of art there have been some practices with oil on canvas that could ensure greater longevity, there has rarely been a situation of marketing one's oil painting practices and choices based upon archival aspects. However, inkjet companies would like to promote their equipment as perceptibly better, and one way to do that is to claim some archival aspect.
This has led to Wilhelm Imaging being the largest paid testing facility. It might be interesting to know that no solvent ink, nor UV cured ink based systems have been tested there. Just to give an example, using a flatbed solvent ink based printer to print an image onto hard material (metal, glass, Lucite, et al) can create a print that could be placed outside for three to five years, hosed or wiped off whenever needed, and in full exposure to daily sun and weather, and exhibit minimal changes (3 to 5 years being the normal warranty for places that do this sort of work). So if one of my images was printed using that solvent ink method onto a stable metal, then displayed under more controlled conditions in someone's house, I would expect it and the image on it, to be around for longer than I will be alive. Interestingly enough, because Wilhelm Imaging (nor any other company) has not tested this, there is no claim of an archival nature.
The other critical aspect against Wilhelm Imaging tests has been that they have restated early tests, or changed their ratings. This affects the confidence level of their accelerated tests. Interestingly, both Fuji and Kodak claim different results than Wilhelm Imaging for their colour materials. This is basically pick your poison: if you have confidence in Wilhelm Imaging, then read their tests on your favorite printer and paper combination.
If you offer a warranty or reprint guarantee on your images, then perhaps more detailed information might be important to give to those who purchase your images. I think any artist needs to be careful of the implications in claiming archival aspects of their works. It is largely a marketing term, though it may imply a warranty.
Just a side note on this. Optical Brightening Agents. The most common is flourescence , which has no known stabilizer. It fades to yellow as it ages. Paper companies will rarely ever indicate that they use this substance, yet it is very very common.
Ciao!
Gordon Moat
A G Studio
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