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. Koh-i-Noor was a partner in making Jiří Barta's 2009 animated feature Toys In the Attic, and its pencils appear frequently throughout the film.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. It is also a contract manufacturer of small injection-moulded plastic products. The company has production facilities in more than 80 countries. He was declared the Entrepreneur of the Year 2014. Since 2000 the owner of the company is Vlastislav Bříza, who serves as Chairman of the Board of Directors of the company. Since 2007, it has been a member of the Czech parent company KOH-I-NOOR Holding a.s. The inspiration for the name was the famous Koh-i-Noor diamond (Persian for "Mountain of Light"), part of the Crown Jewels of the United Kingdom, and the largest diamond in the world at the time.Īfter the Second World War, Koh-i-Noor Hardtmuth was nationalized. Each pencil was encased in a yellow cedar-wood barrel. The products were given awards in many world exhibitions, including in 1855 in New York City, 1856, 19 in Paris, 1862 in London, 1882 in Vienna and 1905 in Milan.Īt the 1889 World Fair in Paris, the Hardtmuths displayed their pencils rebranded as "Koh-I-Noor Hardtmuth". In 1848, Joseph's sons, Karl and Ludwig, took over the family business, and the production was relocated to the Bohemian town of Budweis, within the current Czech Republic. In 1802, the company patented the first pencil lead made from a combination of kaolin and graphite. The company was founded in 1790 by Joseph Hardtmuth (1758–1816) of Austria. With four factories in its country of origin ( České Budějovice, Městec Králové, Broumov, and Milevsko) and one in Bulgaria, the company manufactures and commercialises a wide range of writing implements, art materials, and office products, exporting them to more than 90 countries worldwide. Having been established in 1790, it is one of the oldest stationery companies in the world. is a Czech manufacturing company of stationery products, based in České Budějovice.
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