Mu gutunganya impapuro zigezweho, ibikoresho fatizo bikoreshwa cyane ni impapuro zishaje n'imyanda idafite ubuziranenge, ariko rimwe na rimwe impapuro zishaje n'imyanda idafite ubuziranenge ntibiboneka ahantu hamwe na hamwe, biragoye kubibona cyangwa birahenze cyane kubibona, muri iki gihe, umuhinzi ashobora gutekereza gukoresha ibyatsi by'ingano nk'ibikoresho fatizo mu gukora impapuro, ibyatsi by'ingano ni umusaruro usanzwe w'ubuhinzi, byoroshye kubibona, ni byinshi kandi bihendutse.
Ugereranyije n'uduti tw'ibiti, uduti tw'ingano tuba duto cyane kandi tudakomeye, ntabwo byoroshye gusiga ibara ry'umweru, bityo akenshi, uduti tw'ingano dukoreshwa cyane mu gukora impapuro zikozwe mu buryo bwa "flute" cyangwa impapuro zikozwe mu buryo bwa "corrugated", uruganda rumwe rw'impapuro rukora impapuro zivanze n'uduti tw'ingano cyangwa impapuro zikozwe mu buryo bwa "virgin pulp" cyangwa impapuro zikozwe mu buryo bwa "waste" kugira ngo hakorwe impapuro zikozwe mu buryo bwa "tissue" cyangwa impapuro zo mu biro, ariko impapuro zikozwe mu buryo bwa "flute" cyangwa impapuro zikozwe mu buryo bwa "corrugated" zifatwa nk'ibicuruzwa bikunzwe cyane, kuko inzira yo gukora isanzwe yoroshye cyane kandi ikiguzi cyo gukora ni gito.
Kugira ngo hakorwe impapuro, ubwatsi bw'ingano bugomba kubanza gucibwa, uburebure bwa mm 20-40 ni bwo bwiza, byoroshye ko ubwatsi bwimurwa cyangwa buvangwa n'imiti ikoreshwa mu guteka, imashini ikata ubwatsi bw'ingano niyo isabwa gukora akazi, ariko bitewe n'impinduka mu buhinzi bwa none, ingano zikunze gusarurwa n'imashini, muri iki gihe, imashini ikata ntifatwa nk'aho ari ngombwa. Nyuma yo gukata, ubwatsi bw'ingano buzimurwa buvangwe n'imiti ikoreshwa mu guteka, uburyo bwo guteka soda ikoreshwa cyane muri ubu buryo, kugira ngo hagabanywe ikiguzi cyo guteka, amazi y'ibumba na yo ashobora kwitabwaho. Nyuma y'uko ubwatsi bw'ingano buvanze neza n'imiti ikoreshwa mu guteka, buzimurwa bujya mu cyuma gitekesha uruziga cyangwa mu cyuzi cyo guteka munsi y'ubutaka, ku bikoresho bike byo guteka, mu cyuzi cyo guteka munsi y'ubutaka ni byiza, mu bwubatsi bw'imirimo ya leta, igiciro gito, ariko imikorere ni mike. Kugira ngo umusaruro ube mwinshi, ugomba gutekereza gukoresha cyuma gitekesha uruziga cyangwa igikoresho gitekesha hamwe, inyungu ni uguteka neza, ariko birumvikana ko igiciro cy'ibikoresho nacyo cyaba kiri hejuru. Icyobo cyo gutekesha munsi y’ubutaka cyangwa icyuma gitekesha amazi gihuzwa n’umwuka ushyushye, hamwe n’ubwiyongere bw’ubushyuhe mu gikoresho cyangwa mu gikoresho ndetse n’uburyo bwo guteka buvanze, lignin na fibre bizatandukanywa. Nyuma yo guteka, ubwatsi bw’ingano buzakurwa mu gikoresho cyo gutekesha cyangwa mu gikoresho cyo gutekeshamo cyangwa mu gikoresho cy’amazi cyiteguye gukuramo fibre, imashini ikoreshwa cyane ni imashini ikoresha bleaching, imashini imesa pulp yihuta cyangwa imashini isohora fibre, kugeza icyo gihe fibre y’ingano izaba imaze gukurwamo yose, nyuma yo kuyitunganya no kuyisuzuma, izakoreshwa mu gukora impapuro. Uretse gukora impapuro, fibre y’ingano ishobora no gukoreshwa mu gushushanya isahani y’ibiti cyangwa gushushanya isahani y’amagi.
Igihe cyo kohereza: 30 Nzeri 2022