PAPER FORMATION

Paper Formation and Printing Problems

Abstract

The paper is a material hygroscopic , consisting of fibrous raw materials predominantly vegetable, joined for feltrazione (a phenomenon which consists in the mutual firm union of the cellulose fibers from a suspension) and dried, this product also can be enriched by adhesives , fillers minerals, coloring and additives other.Although cheaper than vellum, paper remained expensive, at least in book-sized quantities, through the centuries, until the advent of steam-driven paper making machines in the 19th century, which could make paper with fibers from wood pulp. Although older machines predated it, the Fourdrinier paper making machine became the basis for most modern papermaking. There are also some problems while printing on the paper. We have discussed all the aspects related to the formation of the paper making.

Paper Formation and Printing Problems

Background History of Paper Making

It is believed that paper was invented in China around the year 200 BC. C., and certainly there are examples of paper found with wooden tablets containing that date. The first papers are silk and linen, but of poor quality for writing, and therefore were mainly used for wrapping. The invention of paper is attributed to Ts'ai Lun, in 105 a. C. At that time was the chief eunuch of the Emperor, and was in charge of supplies of the Royal House. Ts'ai Lun was the first to organize production on a large scale paper and managed to get the exclusive license to do so (Yuhara & Hasuike, 1986: 47). China at that time was already a bureaucratic society that required documents in abundance to keep records in writing. They were the bases for the development of a lighter material, easy to store and transport than the existing wooden slats or silk fabrics.

It should be mentioned the important role that the Chinese characters or ideograms played as a form of unification, for their ability to be understood by people who spoke languages ??distinas from the same China, to Korea or Japan, and whose cultures were influenced by the first: talk different languages, but everyone understood what they wrote for others. It is at that time when the paper began to be used to record the deed, and emerge as traditional methods of kozo paper manufacturing (fiber is probably the strongest and most resistant of all fibers used in handmade paper (Brendemuehl & Borchert, 1976: 79).

China in the ninth century, uses bamboo as a fiber in anticipation of the wood pulp used by paper manufacturers in Europe and in the eighteenth century. For the tenth century, already used the watermark, the use of paper as money, and printing. The manufacture of paper spread from China to Korea. In 610, the priest of Koryo Ramjing in Korea, went to Japan to provide ancillary to the production of brushes, ink and paper. This was the beginning of a serious production of paper in Japan.

Manufacturing of the paper

In summary, the manufacturing process consists in various stages leading to the formation of paper from ...