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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 ...
Oxalic acid is used widely as an acid rinse in the laundry industry due to its ability to remove rust and ink stains. Oxalic acid converts insoluble iron compounds into a soluble complex ion. It is because of this property that oxalic acid is one of the primary components in commercial solutions used to remove scale from automobile radiators. [5]
Gel pens. Compared to other inks, gel ink has higher melting point viscosity, which supports a higher proportion of pigments in the medium.The pigments are typically copper phthalocyanine, carbon black and iron oxides, and the gel is made up of water and biopolymers, such as xanthan gum and tragacanth gum, as well as some types of polyacrylate thickeners.
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Solid ink – a type of ink for use in printers; Soy ink – made from soybeans and more environmentally friendly than some other inks; Space Pen – a pen which uses pressurized ink cartridges and is able to write in zero gravity; Speedball – a manufacturer of pens and other art materials; Stark's ink – a homemade ink in the 19th century
Surfactants reduce the surface tension of the ink; distilled water has a surface tension of 72 dyn/cm (72 × 10 −3 N/m), but the desirable value for ink is between 38 and 45 dyn/cm (38 to 45 × 10 −3 N/m). If the ink's surface tension were too high, then it would not flow through the pen; if it were too low, then the ink would run out of ...
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.
Benzyl alcohol is a colorless liquid with a mild pleasant aromatic odor. It is useful as a solvent for its polarity, low toxicity, and low vapor pressure . Benzyl alcohol has moderate solubility in water (4 g/100 mL) and is miscible in alcohols and diethyl ether .