Posted 20 January 2010 - 21:55
As was listed long ago in a post about fox red and hellbender red/devil red here and on the Noodler's web site - we NEVER were able to make the red/magenta side of the spectrum as impervious to bleach as we have with the far more durable blues/greens/yellows/blacks/grays/browns/oranges such as luxury blue, hunter green, all polar inks, blacks such as standard, anti-feather, heart of darkness, oranges such as naval, Aztec, sun never sets, and mazu...etc....russian series, india, etc...
The reds will hold up for safety purposes on a safety document as a bulletproof ink for security - as the rest of such a document is destroyed by strong bleaches, but they will NOT hold up as well as the other colors against strong bleach attacks and they never have since day one. They are the most durable reds on the market and in their color class, however...the bleach attack has always ranked them at the lowest among the colors for overall durability. You will destroy a safety check or similar document with such treatment - and the ink will remain as remnants, not as durable as the other colors - but still there and to the extent the document is no longer viable for typical forgery attempts.
Durability against bleaches would be ranked as follows - high: blacks, greens, blues, purples (La Reine), Kung Te Cheng, browns, oranges, yellows (year of the pig), blue ghost/white whale, Russia/Taiwan/China/India/Germany/Sweden/Australia/Singapore/Thailand, etc.. - just about all foreign language label inks, some UK colors (note Empire Red, Socrates, Mata Hari, and Heather have marginally less resistance to bleaches than other eternals...behaving similarly to the earlier red spectrum inks). Lower resistance vrs. strong bleach paper decomposition tests: Fox, Devil/Jinn, previously mentioned UK variants, and Hellbender.
A similar list was posted when Swisher introduced those particular colors (devil and hellbender) - all very high for UV light resistance, solvent resistance, water resistance, etc...but grades lower against the harshest tests which involved the chemical decomposition of the cellulose itself (using industrial bleaches). On that score - the reds and magentas mentioned never have equaled the durability of the other colors.
The Warden's Ink series are built like combination locks - as you tamper with them, they will show it in predictable ways...and have laser tampering resistance built into their design as well as many other factors. They are not the "usual" inks - but are made to make it as difficult as possible (virtually impossible, based upon all that we have been shown on current forgery technology and techniques...though technology can change that and we fully intend to keep ahead of the curve when such changes are discovered) for a forger to alter writing upon a numerical security line placed upon a safety featured document.
Hope this information helps (if not, I'll answer PMs as soon as I can in more detail if requested)- labels could become large texts very quickly, which has always been a "rock and hard place" situation.
"The pen is mightier than the sword."
The pen could be mightier than the thief and the gun if it is filled with a bulletproof ink too!
May be available again soon, I hope...but not at the moment:Specialty Fountain Pen Nibs - click here