Ink Vs Plastic

[elevennx]

I have a question for all of you out there that have sample vials of ink sitting around. My own collection was lost in a recent move, or I would check for myself.

 

In my recollection, when sloshed around in the vial, ink typically interacts with the plastic in one of three ways:

 

1 Leaves a permanent coating, or stain, on the plastic walls.

2 Leaves a temporary film of ink that gradually recedes leaving the plastic clear again

3 (Most rare) Seems to only bead up, but never leaves a coating on the plastic

 

In my experience I've only seen #3 with Sailor Kiwa-Guro. And that's what made me think of this. I'm not sure whether there's a parallel with how ink interacts with the plastic inside a pen, but since I have an interest in clear demonstrators, I'm curious to know which inks in your experience fall into the above categories.

 

I need to buy a couple of new inks to replace my lost collection, and I'd like to stick to those that fall into category 2 and 3. I hope information like this might be useful to others out there, too. I'm especially curious about any inks that fall into category 3 because I have found that to be the most attractive in a demonstrator. Are there others that behave like this?

 

And does anyone know what causes this behavior? I understand how some inks can stain, or not, but Kiwa Guro seems almost to be repelled by the plastic, like how rain beads up on a waxed surface.

 

 

[Astronymus]

Some inks contain alcohols, right? Some alcohols weaken some plastics. I guess this could be the case here.

[LizEF]

Most of my inks fall in category #3. I'm not entirely certain of #2 (I think I'd have to take notes). The #1s are easy to remember because all I have to do is look at them.

 

I don't know what causes inks to be in any given category, except that the #1s generally seem to be either a very strong color, or a permanent color.

[ac12]

It also depends on:

• The chemical make up of the plastic.
• The diameter of the cylinder. Smaller diameter (like some ink cartridges and small pens) can have surface tension effects.
• Any texturing inside the cylinder. Possible in cartridges, not likely in piston pens and converters.

[dcwaites]

It depends on the plastic the vial or bottle is made of, rarely the plastic. Noodler's Kung Te Cheng being an exception.

Most inks can't wet most plastics. Therefore they don't stick to the plastic wall.

[Noihvo]

Some inks contain alcohols, right? Some alcohols weaken some plastics. I guess this could be the case here.

 

[Astronymus]

I've read it somewhere as ink recipes. Though I don't know if it is standard for all inks as I'm not familiar with ink recipes. That's why I phrased it as a question.

[antichresis]

 

Noihvo, sorry for the segue, but what ink are you using? Bilberry?

 

As to #1 to #3 I can also say that most/all of my inks are either #2 of #3. For #3 in a vial I have seen Bad Belted Kingfisher and La Couleur Royale act as you desire. Inside a pen, Salix exhibited the same behaviour.

[Noihvo]

I've read it somewhere as ink recipes. Though I don't know if it is standard for all inks as I'm not familiar with ink recipes. That's why I phrased it as a question.

 

 

Noihvo, sorry for the segue, but what ink are you using? Bilberry?

 

As to #1 to #3 I can also say that most/all of my inks are either #2 of #3. For #3 in a vial I have seen Bad Belted Kingfisher and La Couleur Royale act as you desire. Inside a pen, Salix exhibited the same behaviour.

 

 

[Astronymus]

So no alcohol in common ink, ok. It's also possible I mixed up something. Thanks.

 

 

... Pun not intended.

Edited February 20, 2017 by Astron