Pulp & Paper Technology  (English, Hardcover, Rao K.P.)

The operations performed on information are acquisition documentation and transfer. Hand written or printed books have been the most important way of information archival and transfer in time. The process of writing and printing involves creating a visual contrast on a substrate. This is introduced with a deliberate variation of colour or shape on the substrate. Printing involves the process of reproduction of such contrast by transferring the image from a printable surface to a substrate in multiple copies.