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2. Hectograph - Wikipedia

   en.wikipedia.org/wiki/Hectograph

   The hectograph, gelatin duplicator or jellygraph is a printing process that involves transfer of an original, prepared with special inks, to a pan of gelatin or a gelatin pad pulled tight on a metal frame.

3. Pounce (powder) - Wikipedia

   en.wikipedia.org/wiki/Pounce_(powder)

   Pounce is gently sprinkled all over the writing on the paper. When using a quill or a steel nib, and with inks that are made up to match those typically in use during the 18th and 19th centuries, and provided the pen has been used with the fine strokes typical of handwriting of that period, the handwriting will be sufficiently dry within 10 seconds to allow the paper to be folded without blotting.

4. Trap (printing) - Wikipedia

   en.wikipedia.org/wiki/Trap_(printing)

   Thinner traps are less visible. Therefore, the trap width is set to a strict minimum, dictated by the maximum amount of misregistration of the entire workflow up to the press. When printing at 150 lpi, traps are usually between 1/150 and 1/300 inch (0.48 pt and 0.24 pt, 0.16 mm and 0.08 mm). These values are usually multiplied by 1.5 or 2 when ...

5. Pad printing - Wikipedia

   en.wikipedia.org/wiki/Pad_printing

   The transfer pad presses down onto the printing plate momentarily. As the pad is compressed, it pushes air outward and causes the ink to lift (transfer) from the etched artwork area onto the pad. As the transfer pad lifts away, the tacky ink film inside the etched artwork area is picked up on the pad. A small amount of ink remains in the ...

6. Offset printing - Wikipedia

   en.wikipedia.org/wiki/Offset_printing

   Offset printing is a common printing technique in which the inked image is transferred (or "offset") from a plate to a rubber blanket and then to the printing surface. When used in combination with the lithographic process, which is based on the repulsion of oil and water , the offset technique employs a flat ( planographic ) image carrier.

7. Ink ball - Wikipedia

   en.wikipedia.org/wiki/Ink_ball

   An ink ball, inking ball, or dabber was a tool used in printmaking and letterpress printing to apply ink to the plate or type to be printed. Ink balls had been used since the dawn of the printing press in the 15th century. In printmaking, they were used individually, to make the ink smooth and applying it. [1]