Influence of technological descriptions of book blocks on durability of editions in binding 7 type

Abstract

In the article presented results of researches of tear-out of book’s blocks are in binding 7 type that characterizes description of durability of editions. Were analyzed modern state of problem making editions is in a cover and binding and presented requirements for providing the price – quality of book edition. Were chosen modern materials and basic formats of editions with the corresponding volume of pages in a block. As technological descriptions it is chosen thickness and length book block, thickness of binding cardboard, offset, newspaper and chalk-overlay paper of different mass. Researches of glue connections in the counterfoils of book blocks was conducted with determining description of durability through effort of tear-out of book block on binding as 7 types. Was calculated the effort of tear-out of book block from binding and specific effort of tear-out of book block from binding. The received results allowed to build the histograms of specific effort of tear-out for the different thickness of book block, area of book's spine by taking the basic formats of editions 60×901/16 and 70×1001/16. On the basis of the built histograms it is possible to affirm that does not have dependence between specific effort of tear-out of book block, his thickness and area of counterfoil. Varying technical descriptions it is impossible to build direct dependence of influence of kind and paper mass on description of durability