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It was released in 1941 as "51" ink, along with the Parker 51 pen; in 1947 it was made somewhat less corrosive, and renamed "Superchrome". Parker was careful to print prominent warnings on caps, labels, and boxes that the ink could only be used in the 51 (and, later, its economy version, the 21), and would damage any other pen.
Francisco Quisumbing. Francisco Arguelles Quisumbing is said to be a Filipino botanist claimed to be the inventor of Quink ink [1] [2] used by The Parker Pen Company. He studied in the Philippines and the US, gaining a BSc from the University of the Philippines School of Agriculture, [disputed – discuss] Los Baños in 1918 and an MSc in 1921.
The ideal fountain pen ink is free-flowing, free of sediment, and non-corrosive. These qualities may be compromised in the interests of permanence, manufacturability and in order to use some widely available dyes. [4] A form of ink that predates fountain pens by centuries is iron gall ink. This blue-black ink is made from iron salts and tannic ...
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In 1894, Parker received a patent on his "Lucky Curve" fountain pen feed, [4] which was claimed to draw excess ink back into the pen barrel when the pen was not in use. The company's first successful pen, released in 1899, was the Parker Jointless. The Lucky Curve feed was used in various forms until 1928.
There were two iterations of a special ink formulated exclusively for use in the Parker 51. This initial ink was highly alkaline and while water-based, also included a substantial amount of isopropyl alcohol. It was released in 1941 as "51" ink, along with the Parker 51 pen. Parker was careful to print prominent warnings on caps, labels, and ...
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