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Auroloide And Alkaline Inks


marlinspike

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According to Richard Binder, alkaline inks damage celluloid pens. Is this also true for Auroloide, or is it sufficiently different that it doesn't have this same vulnerability?

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The modern Aurora is made of a more stable form of celluloid, cellulite acetate. While it's not completely immune from alkaline ink, it's more resistant than cellulose nitrate. However, neither material presents much of a risk in the Aurora 88 and Optima design: the barrel material never comes in contact with the ink. The pen section is made of black acrylic, so it's perfectly fine wither the ink is alkaline or acidic. As for the reservoir, the Aurora uses an inner ink chamber to hold the ink. That is, the ink never comes into contact with the outer celluloid barrel.

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The modern Aurora is made of a more stable form of celluloid, cellulite acetate. While it's not completely immune from alkaline ink, it's more resistant than cellulose nitrate. However, neither material presents much of a risk in the Aurora 88 and Optima design: the barrel material never comes in contact with the ink. The pen section is made of black acrylic, so it's perfectly fine wither the ink is alkaline or acidic. As for the reservoir, the Aurora uses an inner ink chamber to hold the ink. That is, the ink never comes into contact with the outer celluloid barrel.

 

Oh, interesting, I didn't realize it was lined like the Pelikans are. Good to know.

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I had this very question on my mind today! I want to clean out my Optima and fill it with Sailor Sky High (a fabulous vibrant blue I love.) The Sailor inks, however, tend to be pretty alkaline so I was similarly worried about whether it was a good idea or not. Thanks!

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As for the reservoir, the Aurora uses an inner ink chamber to hold the ink. That is, the ink never comes into contact with the outer celluloid barrel.

 

Hi, this is very interesting. Is there really some kind of transparant tube inside the 88s and Optimas?

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I had this very question on my mind today! I want to clean out my Optima and fill it with Sailor Sky High (a fabulous vibrant blue I love.) The Sailor inks, however, tend to be pretty alkaline so I was similarly worried about whether it was a good idea or not. Thanks!

That is a lovely ink. I use the successor ink, which Sailor calls Souten. Its not quite as vibrant, but still has a similar color. At any rate, Im not sure if it would stain the ink window or not. However, I havent noticed any staining with Sailors Souten ink. And frankly, The Optima/88 design makes it darn near impossible to clean out all of the ink from the reservoir anyway.

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Ive been so worried about using my 6 Sailor Jentle inks in my Optima Flex which is in the light blue resin. But it sounds like it would be totally safe, I didnt realize there was an inner lining in the piston chamber!

Edited by Gobblecup

Gobblecup ~

 

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The above posts refer to the currently produced Aurora Optima. But Aurora has been making pens like that since before World War II. Did the older examples also have an inner lining that prevents ink from coming in contact with the outer celluloid?

 

My own case is that I own an Aurora 88P. Those were introduced in 1958, IIRC. Should I expect that my piston-filler has an inner lining that protects the celluloid exterior from ink? How might I research this question?

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So far as I know the 88P is unlined. I have seen no sign of it. Given its celluloid is cellulose acetate, rather than Celluloid, cellulose nitrate, I am not at all worried about mine.

X

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Auroloid isn't celluloid as far as I know, so, it has different properties. It seems to be a cellulose acetate resin. But cellulose acetate resins are more vulnerable to alkaline damage than celluloid is.

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  • 4 weeks later...

So far as I know the 88P is unlined. I have seen no sign of it. Given its celluloid is cellulose acetate, rather than Celluloid, cellulose nitrate, I am not at all worried about mine.

 

 

Yes, the 88P is completely unlined. I think the lining came in some time after the introduction of the Riserva Magica system.

 

Dillon

Stolen: Aurora Optima Demonstrator Red ends Medium nib. Serial number 1216 and Aurora 98 Cartridge/Converter Black bark finish (Archivi Storici) with gold cap. Reward if found. Please contact me if you have seen these pens.

Please send vial orders and other messages to fpninkvials funny-round-mark-thing gmail strange-mark-thing com. My shop is open once again if you need help with your pen.

Will someone with the name of "Jay" who emailed me through the email system provide me an email address? There was no email address provided, so I can't write back.

Dillon

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