Digital BW, The Print

John,


> Never heard of 2-prrolidone. and  Triethanolamine.

You can Google much of this and get a picture of what they are doing.

> And there is a chemical called Alkyldiol, that they describe
> as Proprietary. That sounds mysterious.  It accounts for 7.5%

All the really secret stuff is hidden from view. 

Note the small amount of carbon.  Then go and compare their color pigment MSDS.  Where is the pigment?  Hmm ...  

> wetting agent?

You don't need much wetting agent at all -- like 1%.  In my C6 formula the Photo Flo is 10%, but that's becuase it's mostly water and glycol.  It's there for the glycol as much as the weak wetting agent.

>... water making up 80% and the Carbon pigment less than 1% ...

Expensive water.

> So, if you take the HP gray dilute it with gyclol,  
> distilled water, and a wetting agent, that's it? 

I tend toward more glycerol and less glycol (like the Epson glop) -- better specific gravity and lower clogging from what I can see.

> I wonder why so much of that Alkyldiol is necessary?

I think that is a generic description and where they are hiding the color pigs as well as other components they don't want to disclose, (but it's been a while and I'm answering without going back to my notes).

Paul
www.PaulRoark.com