|
Inks
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. Ink can be a complex medium, composed of solvents, pigments, dyes, resins, lubricants, solubilizers, surfactants, particulate matter, fluorescents, and other materials. The components of inks serve many purposes; the ink's carrier, colorants, and other additives affect the flow and thickness of the ink and its dry appearance. In 2011, worldwide consumption of printing inks generated revenues of more than 20 billion US dollars. While demand by traditional print media (including newspapers) is shrinking; more and more printing inks are consumed for packaging. History Many ancient cultures around the world have independently discovered and formulated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reed Pen
A reed pen ( grc-gre, κάλαμοι '; singular ') is a writing implement made by cutting and shaping a single reed straw or length of bamboo. History and manufacture Reed pens with regular features such as a split nib have been found in Ancient Egyptian sites dating from the 4th century BC. Reed pens were used for writing on papyrus, and were the most common writing implement in antiquity. In Mesopotamia and Sumer, reed pens were used by pressing the tips into clay tablets to create written records, using cuneiform. To make a reed pen, scribes would take an undamaged piece of reed about 20 cm, and leave the end that would be cut into point in water for some time. This ensured that the pen would not splinter when cut. They crafted a series of cuts that would cut the nib of the pen until it was flat enough, and pointed. The pointed end was then cut off, not too far from the point, to form a squared end suitable for writing. At the end they would start the split, which would ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
