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2. Iron gall ink - Wikipedia

   en.wikipedia.org/wiki/Iron_gall_ink

   Iron gall ink (also known as common ink, standard ink, oak gall ink or iron gall nut ink) is a purple-black or brown-black ink made from iron salts and tannic acids from vegetable sources. It was the standard ink formulation used in Europe for the 1400-year period between the 5th and 19th centuries, remained in widespread use well into the 20th ...

3. Isopropyl alcohol - Wikipedia

   en.wikipedia.org/wiki/Isopropyl_alcohol

   Isopropyl alcohol (IUPAC name propan-2-ol and also called isopropanol or 2-propanol) is a colorless, flammable, organic compound with a pungent alcoholic odor. [9]Isopropyl alcohol, an organic polar molecule, is miscible in water, ethanol, and chloroform, demonstrating its ability to dissolve a wide range of substances including ethyl cellulose, polyvinyl butyral, oils, alkaloids, and natural ...

4. Ink - Wikipedia

   en.wikipedia.org/wiki/Ink

   Ink is a gel, sol, or solution that contains at least one colorant, such as a dye or pigment, and is used to color a surface to produce an image, text, or design. Ink is used for drawing or writing with a pen, brush, reed pen, or quill. Thicker inks, in paste form, are used extensively in letterpress and lithographic printing.

5. Francisco Quisumbing - Wikipedia

   en.wikipedia.org/wiki/Francisco_Quisumbing

   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.

6. Quink - Wikipedia

   en.wikipedia.org/wiki/Quink

   Quink was heavily advertised, and an immediate success. According to Kenneth Parker's personal journal, Quink production began on March 17, 1931, and $89,000 worth had been shipped by October 22—more than twice the company's expectations and an excellent return on the $68,000 spent on its development. [2]

7. Check washing - Wikipedia

   en.wikipedia.org/wiki/Check_washing

   Various steps can be taken by the writer of the check to reduce the possibility of falling victim to check washing. These include mailing checks by placing them in secured mailboxes, using secure ink dispensed from a gel, rollerball, or fountain pen, filling in all lines on the check, and careful scrutiny of bank statements.