Imifuka yo gupfunyikamo impapuro z’ibiti bya kraft ishingiye ku mpapuro z’ibiti byose. Bityo ibara rigabanyijemo impapuro z’umweru z’ibiti n’iz’umuhondo ku mpapuro z’ibiti bya kraft.

Filimi ya PP ishobora gushyirwa ku mpapuro kugira ngo irinde amazi. Gushyiramo ibice, gucapa no gukora imifuka. Uburyo bwo gufungura no gupfuka inyuma bugabanyijemo ibice bibiri: gufunga ubushyuhe, gupfunyika no gufunga impapuro.

Ku bijyanye n'isakoshi ya mbere yo guhaha impapuro z'ubudodo, yavutse mu 1908 i St. Paul, muri Minnesota, muri Amerika. Umwe mu banyaduka bo muri ako gace, Wald Duvena, yatangiye gushaka uburyo bwo kwemerera abaguzi kugura byinshi icyarimwe kugira ngo bongere ibicuruzwa. Duvina yizera ko ikwiye kuba isakoshi yakozwe mbere kandi ihendutse kandi yoroshye kuyikoresha, kandi ishobora gutwara nibura ibiro bigera kuri 75.

Nyuma yo kugerageza kenshi, yafungiye imiterere y'iyi sakoshi ku mpapuro za kraft kuko yakozwe mu biti by'imiti birebire, kandi yavuwe na soda yoroshye na sulfide ya alkali mu gihe cyo guteka, bituma imbaraga z'umwimerere z'imiti zidashira, bityo impapuro za nyuma zakozwe ziba zifatanye neza na fibre, kandi impapuro zirakomeye kandi zishobora kwihanganira gukururwa gukomeye n'igitutu bidacitse.

Nyuma y'imyaka ine, havutse ishashi ya mbere y'impapuro zo guhaha. Hasi yayo ni urukiramende kandi ifite ingano nini kurusha ishashi gakondo z'impapuro zo hasi za V. Umugozi unyura hasi no ku mpande zayo kugira ngo wongere ubushobozi bwo gutwara imizigo, kandi hakorwa imigozi ibiri yo gukurura ku mpera yo hejuru y'ishashi y'impapuro kugira ngo byoroshye kuyiterura. Duvena yayise ishashi yo guhaha mu izina rye bwite kandi ayiha uburenganzira bwo kuyigura mu 1915. Muri iki gihe, ingano y'ibiciro by'ishashi nk'izo zo guhaha ku mwaka irenga miliyoni 100.

Guangdong Chuangxin Packing Group niyo iri ku isonga mu bigo bikora ibijyanye n'ikoranabuhanga rigezweho mu bijyanye n'ibikoresho n'ubuhanga, ubushakashatsi n'iterambere, umusaruro, n'ubucuruzi. Hari ibirango by'ubucuruzi nka Yinuo, zhonglan, Huanyuan, T.ronson,Crratrusrtn'amapatanti arenga 30 y'ubuvumbuzi. Kuva yashingwa mu 2008, intego y'ibigo ni "gutuma isi irushaho kuba nziza ku bidukikije no ku bucuti" kandi byiyemeje kuba intangarugero ku isi mu bijyanye no kubungabunga ibidukikije - ibigo 500 bya mbere ku isi.