Features of application of waste paper in the composition of bag types of paper
Article is devoted to studying of properties paper for bags glued in the neutral environment at the presence of strengthening additives, made of cellulose and papers for recycling. Carried out researches have allowed to develop a way of manufacturing papers for bags with the raised physicomechanical operational properties which complex estimation was carried out on absorption of energy at break, to explosive length of samples, rigidity at break and to module Junga. It is established, that application in a composition papers of paper for recycling in a combination with cellulose in the ratio 60−40 and 40−60% accordingly, and also strengthening additive ''Melapret” in quantity of 0,8% from a. d. f. Leads to increase of durability of a paper century and allows to reach absorption of energy at break of 47,7 J/m <sup>2</sup>, explosive length of 6485 m, module Junga 3,5 GPa and rigidity at break 534,9 kN/m. The received data can be used at perfection of manufacturing techniques of packing kinds of a paper and a cardboard.