Imyambarire yera yerekana agasanduku k'itabi (buri shyirahamwe ry'amasanduku 10, buri gasanduku k'ipaki 7)

Ikarito yera nubwoko bwimpapuro zibyibushye hamwe nuburemere bunini. Kuberako ubuso butagira ibara, mubisanzwe byitwa ikarito yera. Ikarito yera yubushinwa igabanijwemo ibyiciro bitatu A, B, C. Umweru wa A ntabwo uri munsi ya 92%; Urwego B ntiruri munsi ya 87%; Urwego C ntiruri munsi ya 82%.
Ibikoresho fatizo byikarito yera ni imiti 100%
Ikarito yera kumapaki y itabi isaba gukomera cyane, kumeneka kumeneka, koroshya no kwera. Impapuro zisabwa hejuru zirasa, ntamurongo, ibibanza, amenyo hamwe nibisasu, guhindagurika no guhindura umusaruro. Nka paki y itabi hamwe namakarito yera cyane ukoresheje imashini yihuta ya gravure yandika kugirango icapwe, niko ibyapa byerekana amakarito yerekana ibipimo biri hejuru. Kurwanya impagarara bizwi kandi nkimbaraga zingutu cyangwa imbaraga zingana, bivuze ko impagarike ntarengwa impapuro zishobora kwihanganira iyo zimenetse, zigaragara muri kN / m. Imashini yihuta yihuta yo gukurura imashini kugirango ikurure impapuro, icapiro ryihuse kugirango ihangane nimpagarara nini, niba ibintu byo kumena impapuro kenshi, byanze bikunze bitera umwanya muto, bikagabanya imikorere, ariko kandi bikongera igihombo cyimpapuro.
Hariho ubwoko bubiri bwikarito yera kumapaki y itabi, imwe ni FBB (ikarita yera yumuhondo yumuhondo), imwe ni SBS (ikarita yera yera), udupapuro twitabi dukoresheje FBB na SBS ni ikarito yera yuzuye ikarito yera, FBB igizwe nibice bitatu ya pulp, mu maso no mu gice cyo hasi ukoresheje sulfate yimbaho, igiti cyibanze ukoresheje imiti ya mashini yo gusya ibiti. Uruhande rwimbere (icapiro uruhande) ni igipfundikizo, gikoreshwa hamwe na bibiri cyangwa bitatu, mugihe uruhande rwinyuma rutagira igipfundikizo. Kubera ko igice cyo hagati gikozwe mubiti bya chimique na mashini byasekuwe, ifu ifite umusaruro mwinshi kubiti (85% -90%), kandi igiciro cyumusaruro ni gito, bityo igiciro cyikarito ya FBB kiri hasi.
FBB pulp ifite fibre ndende na fibre ntoya hamwe na fibre ntoya, bityo ubunini bwimpapuro zuzuye nibyiza, kandi garama imwe ya FBB ifite umubyimba mwinshi kuruta SBS, nayo ubusanzwe igizwe nibice bitatu bya pulp, urwego rwo hejuru , urwego rwibanze nu gice cyo hasi byose bikoresha sulfate yimbaho ​​yimbaho. Uruhande rwimbere (icapiro uruhande) ni igipfundikizo, gikoreshwa inshuro ebyiri cyangwa eshatu hamwe nigituba kimwe na FBB, mugihe uruhande rwinyuma rutagira igipfundikizo. Kubera ko urwego rwibanze narwo rukozwe muri sulfate ya sulfate, umweru uri hejuru, bityo bita ikarita yera yera. Mugihe kimwe, fibre fibre ni nto kandi impapuro zirakomeye, SBS rero iroroshye cyane kuruta FBB yuburemere bwa garama imwe. Kurugero, uburebure bwa 230g / m2 FBB ya Hongta Renheng ni 320 mm, naho uburebure bwa 230g / m2 SBS ni 295 mm.