No idea what it is like in a wash, but glad my abstract stick drawings with it are safe! It is great for experiments and sploshing ink around in paintings, as long as you don’t mind the weird texture. The white part was me not letting it dry – it takes hours to dry as well. I included it for a laugh as I had a bottle…only to find it is fine! Classmates is the cheapest gunkiest smelliest drawing ink – you can get it at educational places by the bucket load in all it’s brown-black gungy glory. The Jackson’s ink was another unknown – way cheaper than W&N and others, it is well worth getting. All aced this test.īTW the lighter bit on the Jackson’s is the paper not being straight while scannned, it hasn’t faded. it has tiny suspended bits of carbon in it – were real unknowns as was the Koh-i-noor Document ink and Classmates. But the likes of Hero 234 ink – a really cheap Chinese nanoparticle ink – i.e. Most of the inks did great in the test, and put my mind at rest – I was sure that the ISO-rated lightfast inks like R&K Dokumentus would ace it, as would probably FW, Sketchink and traditional indian inks. I guess this is also now a dampness test – and that some inks also have a problem with damp. Luckily I checked it last year and can confirm the results are the same. That worked well until the damp got to the July one – the windows get damp here in winter – and slightly opened it, as you can see. This was on 170gsm cartridge paper from Artway, and I folded it over with cardboard between and sealed the covered part with tape sandwiched between that and another piece of cardboard! I didn’t have space to test that in the Classmates ink. I did a wash of each ink in case that affected the results – sometimes dilution can affect lightfastness, at least in watercolours so I wanted to test that in each ink. So here are the results – the left side was exposed to light for 5-6 months and the right side folded and covered. Left side exposed, right side covered.įrom top to bottom: R&K Sketchink ‘Marianne’, R&K Dokument, Classmates Drawing Ink, R&K Salix, Daler FW ink black Left side exposed, right side covered.įrom top to bottom: Hero 234, Jackson’s Indian Ink, R&K Sketchink Lotte, W&N Liquid Indian, W&N Indian Ink, R&K Scabiosa, Diamine Registrar, Koh-I-Noor Black, Koh-I-Noor Blue Ink Lightfastness Test – 8th July 2020 – 8th Jan 2021. Ink Lightfastness Test – mid June 2020 – 8th Jan 2021. Daler FW Black – acrylic ink – – waterproof.Winsor & Newton Indian Ink – waterproof.Winsor & Newton Liquid Indian – non waterproof.Rohrer & Klingner Salix – iron gall inkĭrawing inks tested for lightfastness – not for fountain pen use, for dip pens, brushes etc.Diamine Blue Black Registrar – iron gall ink. ![]() Rohrer & Klingner Dokumentus Black – ISO rated – waterproof.Rohrer & Klingner Sketchink ‘Lotte’ – nanoparticle ink – waterproof.Rohrer & Klingner Sketchink ‘Marianne’ – nanoparticle ink – waterproof.Rohrer & Klingner Scabiosa – iron gall ink.Hero 234 – nanoparticle ink – waterproof.Fountain pen inks tested for lightfastness : It seems price isn’t always an indicator. I threw in a few cheap wildcards as well, and was surprised. And how many now-famous artists in the past skimped on materials because ‘who cares, I’m not famous’ and now their work is falling apart and is a nightmare to conserve? Quite a few. Very rude and really misguided, and unless you know your work will forever live in the dark, like in a sketchbook it is always at risk of fading. I do hope their commisions they are selling in lockdown aren’t using the fugitive watercolours I warned them about, although that would be sweet karmic revenge for such toxic bitchiness. ![]() *Although I have had a salty artist claim that only people whose work is not worth preserving care about this issue! Grr. The ones I am testing here are the permanent, mostly waterproof, supposedly archival, document/registry inks such as recommended for legal signatures – but as we find that doesn’t necessarily mean lightfast. Most artists* in watercolour and oils are aware of this, but it seems less known in the fountain pen (FP) world, where ink-painting in non-lightfast inks are currently vogue.įor the record most FP inks are not lightfast as they are dye-based, and are meant to stay in a notebook, they are usually not permanent or waterproof either. Lightfastness is the way pigments and dyes react to UV light – if they aren’t lightfast they fade or shift in colour – really not great if you want to sell pieces or want them to last. Weird to be presenting lightfast tests in the darkest time of the year but since last summer I have been testing the various inks I use for lightfastness, and here are the results.
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