PAPER SUPPLIES

Greymouth Evening Star, 18 April 1939, Page 3

PAPER SUPPLIES

SEARCH FOR RAW MATERIALS. LONDON, March 13. To keep pace with the recent advances in pulp and paper-testing, which have- led to the development of new apparatus and an improved technique, important additions have been) made io rhe equipment of the laboratories al the imperial Institute devoted to examination of paper-making materials. A considerable amount of valuable j.ieliminary work on the paper-mak-ing properties of Umpire raw materials has already been carried out, but heavier programme is expected in the future. U ver-in er easing pressure ■cn existing sources of the- worlds paper pul)> must, gradually but inevitably. direct attention to the possitrili-’ ties of developing new sources ot. supply and new raw materials in man.t Paris of the British Umpire hithcrl'. 1 untapped, it is anticipated, there fore, that the institute will be called

i]i in fuiurcjo carry-out inn anti reliable. investigations of many forms if Empire raw materials in order to ,esi. their suitability for paper-making. Die institute is now in a position to make comprehensive tests of papermaking materials in accordance with he most modern laboratory methods. I’lie new equipment consists of the following: —ill A British standard sheer machine; (2) a. Lampen mill; (3) a- constant temperature-constant humidity room: i-l.‘ paper-testing apparatus. The purpose of the new apparatus is to enable sheets of paper to he made from a small quantity of any type of paper pulp, the paper being made under rigidly standardised conditions so that rhe standard sheets obtained are strictly uniform ami capable of comparative tests, ii is. therefore, possible by tin- use of the standard sheet machine, in conjitticiiim -with the pa|.'cr-testiiig equipment, to determine the strength and other properties of pulps obtained from any new raw materials and to assess their value and uses in comparison with commercial pulps. In view of the constant growth in the world’s demands for paper, these developments are probably only runners of large expansion in the D; ture.