New protective layer for cartographic production

The process of coating moistureproof poly-para-xylylene (PPX) layers by vacuum-deposition on cartographic production manufacturing on various kinds of materials (various sorts of paper, synthetic film, materials, photopaper) is developed. High protective properties of PPX-coatings from the influence of external factors (humidity, solutions of salts, acids, alkalis etc.) are marked. Physico-mechanical properties of cartographic samples on the basis of paper with PPX-coating have been investigated, their improvement in comparison with unprotected samples has been established. Investigation is carried out on the base of assortment of cartographic production of Moscow Aerogeodesic Enterprise. The conclusion is done, that the use of PPX-coating for protection of cartographic production on the basis of paper will allow to prolong essentially the time of its service both in the fields and in the room conditions and also to improve its aesthetics appearance.