Diamine Inks And Staining?

[Reygan]

I find Ochre hard to clean and prone to staining. Don't leave it in a pen to long and clean it promptly. Great color and worth the extra attention.

How long is too long to leave ink in a pen? Just want to know the amount of time it takes fr some inks to stain the inside of a pen.

[mhosea]

How does the staining process (for pens) work by the way? I imagine it doesn't simply occur immediately on contact and that there are other factors at play.

 

The way I think about it, there are a few different sorts of "stains". One is just ink getting caught up in the lubricant of a piston or plunger filler, which is not really a stain as such, but it appears that the ink cannot be washed out completely. Another sort of "stain" is a dry residue that resists rinsing but can be wiped out, which happens a lot with the cellulose-reactive inks, but I see it mostly on the nib. The third is the permanent one: molecules migrate into the plastic itself, which takes some time.

[SnorriRafn]

I've used all three with no staining in my TWSBIs. The only stains I have ever struggled with have been from Diamine Grape. Purples have been bigger problems for me than reds ever dreamed of being. I used reds between problem purples to help clean. I don't think you'll have any troubles.

 

Diamine Grape stained the sac of my Hero 612 although the plastic part of it didn't show any staining. I have used the ink in a Lamy converter and my TWSBI 580 with no troubles.

[amberleadavis]

 

Diamine Grape stained the sac of my Hero 612 although the plastic part of it didn't show any staining. I have used the ink in a Lamy converter and my TWSBI 580 with no troubles.

 

 

Hmm...in fairness, Grape didn't stain my TWSBI, just my Noodler's Ahab. (Different materials)

[welch]

I use ASA blue routinely. Nice color, well behaved. No problems. In general, Diamine makes reliable inks.

 

The others? I don't know...I'm basically a blues-man, having shifted from black to blue-black and all-the way blue.