Pilot Iroshizuku Fountain Pen Bottle Ink (Staining?)

[KenS]

Everyone seems to really like Pilot Iroshizuku Fountain Pen Ink, I'm wondering if there have been any reports of it staining pens (Think Clear Demonstrators).

Thanks for looking. Ken

[tfwall]

I've tested some of the red and orange ones in clear demonstrators. No deleterious effects observed.

 

Traditionally, reds, oranges and browns tend to be the most staining, so if they don't stain with colours it probably won't stain in others.

Edited November 19, 2009 by Chemyst

[Strang]

I'm fully convinced that any ink will, eventually, stain a demonstrator - since ink is, essentially, stain. Having said that, I have tried nine of the Iroshizuku inks and have not noted any kind of staining whatsoever. YMMV.

[Deirdre]

I've had staining that I reported before, but I don't recall which of the three I have, offhand.

[KenS]

The answers so far indicate that there "probably" isn't a problem. I'd hate to fill my Omas Olgiva-vision (or whatever it's called) with Kon-Peki and have the barrel turn a permanent blue.

Ken.

 

 

[dizzypen]

I tried Ku-Jaku in a pen and it was a bit clingy, but it did not stain. I just had to flush a little more. Same with Shin-Ryoku.

[Chris Chalmers]

I used these inks in my Pel M800 demo and had no problems apart from a bit of stubborn ink where the nib/feed screws into the section - and an overnight soak, sans nib/feed, in some diluted dish washing soapy water cured that. Nothing at all in the barrel - I think the material at those threads is different, or has a different finish.

[GreenVelvet]

Hmmm... what about celluloid? I am wondering whether or not to risk an Iroshizuku in a WWII-era Sheaffer vacuum filler, and I'm thinking no.

[tawanda]

ive never had problems with staining pens (using KuJaku, Kiri Same, Kon Peki) but they are very clingy, as one FPNer succinctly put it. Pens need to be flushed a whole lot more, and for that reason I would avoid using them in vintage pens in case they clog.

 

They also stain my bathroom sink and I have to use a spray bleach to clean it with afterwards.

[oceansportrait]

I've been using Asa-gao (a blue-ish hue) in my Sailor 1911M demonstrator, and so far I haven't had any problems with staining.

[kushbaby]

ive never had problems with staining pens (using KuJaku, Kiri Same, Kon Peki) but they are very clingy, as one FPNer succinctly put it. Pens need to be flushed a whole lot more, and for that reason I would avoid using them in vintage pens in case they clog.

 

They also stain my bathroom sink and I have to use a spray bleach to clean it with afterwards.

 

+1.

 

No actual pen staining, but hard to rinse out "clingy". Also, lots of sink staining - have to bleach it out. Because of this, I don't put it in expensive demos or very light colored pens - but I have no evidence to support this practice. Just paranoia... :embarrassed_smile:

[reprieve]

I've got a little Yama-budo stain on the section of my lavender ebonite Huron from Edison Pens--it is just a slight tinge really, and only noticeable if you know that it is there. I do not use this ink in pens with light-colored sections or in piston fillers with ink windows.

 

I haven't had any problems with Kon-peki, Tsuki-yo, Fuyu-syogun, Momiji, or Syo-ro. Some of these inks do take a bit longer to flush than others. I've had Kon-peki in a Pilot Custom 823 demonstrator (the amber version) for three or four months now. There has not been any staining at all, although it is "clingy" as others have mentioned.

[kushbaby]

I've got a little Yama-budo stain on the section of my lavender ebonite Huron from Edison Pens--it is just a slight tinge really, and only noticeable if you know that it is there. I do not use this ink in pens with light-colored sections or in piston fillers with ink windows.

 

I haven't had any problems with Kon-peki, Tsuki-yo, Fuyu-syogun, Momiji, or Syo-ro. Some of these inks do take a bit longer to flush than others. I've had Kon-peki in a Pilot Custom 823 demonstrator (the amber version) for three or four months now. There has not been any staining at all, although it is "clingy" as others have mentioned.

 

Now that you mention it, it *was* Yama-budo that caused lots of cling...

[jk0592]

I have used Asa Gao, Yama Budo, Momiji and now Ajisai. I have not had a single staining problem with any of these four. All these iroshizuku inks are beautiful.