OCR Text |
Show 4 OLDPAPERMAKIN of pulp could not be taken from the cloth, the shee was dried on the mould and then removed. In thi earliest form of papermaling a great many mould would bave been necessary if much paper was t be produced, for it would have required at least day for each sheet to dry before it could have bee taken from the cloth covering of the moul An ancient Persian of genius conceived the ide for a mould from which the wet sheet of pape could be removed while still moist. This constituted the first real step in papermalking, as thi enabled the artisan to form sheets continually o the same mould. For this purpose the moulds ba to be constructed of a smooth and firm materia from which the moist sheet would free itself These moulds were made by placing pieces of spli bamboo or other vegetable filaments side by sid and stitching at regular intervals with sill, flax camel,, yak:, or horse-hair, The bamboo strips, a well as the stitches, left impressions in every shee of paper made on the mould. The marks left b the bamboo stickswere called "laid-lines,"and thos impressed by the stitches which held the bamboo together were known as "chain-lines." Thi manner of mould construction was the simples and best method that could have been used i forming a rigid surface that would retain the fibre and yetlet the water drain through. In early papermaking the lines impressed in the sheets did no Diital image© 2004 Marriot Libary, University o Utah. Al ighs reserved |