{"product_id":"platinum-blue-black-ink","title":"Platinum Blue-Black Ink (Dye-Based)","description":"\u003cp\u003eFor the notebook that holds your daily lists, reading notes, and longer thoughts, \u003cstrong\u003ePlatinum Blue-Black\u003c\/strong\u003e offers a quietly shaded dark blue with some old-fashioned chemistry behind it.\u003c\/p\u003e\n\u003cp\u003eThis is Platinum’s standard \u003cstrong\u003ewater-based dye ink for fountain pens\u003c\/strong\u003e, in a large 60mL bottle. Its formula also contains iron gall: the blue dye is combined with iron compounds that oxidize after writing, leaving a darker, lasting component on the paper. That is why “dye-based” and “iron gall” both describe this ink.\u003c\/p\u003e\n\u003cp\u003eIt belongs in a regularly used fountain pen. The bottle includes an internal filling reservoir to help reach the ink as the level drops. Flush the pen before switching to another ink, and clean it before putting it away for an extended break.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e60mL glass bottle with a filling reservoir\u003c\/li\u003e\n\u003cli\u003eBlue-black color with shading\u003c\/li\u003e\n\u003cli\u003eDye-based iron gall formula; acidic\u003c\/li\u003e\n\u003cli\u003eMade in Japan\u003c\/li\u003e\n\u003cli\u003ePlatinum model INK-1200, color #3\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is the standard bottled Blue-Black, distinct from Platinum’s pigment-based Blue and Carbon Black inks.\u003c\/p\u003e","brand":"Platinum","offers":[{"title":"60mL Bottle","offer_id":67392331841764,"sku":"INK-1200-3","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/4507\/0308\/files\/platinum-blue-black-ink-60ml-bottle-box-01-fit-1000.jpg?v=1790552163","url":"https:\/\/www.bottleandplume.com\/products\/platinum-blue-black-ink","provider":"Bottle and Plume","version":"1.0","type":"link"}