Izikhwama zokupakisha zephepha le-kraft ezisekelwe ephepheni le-pulp lokhuni oluphelele. Ngakho umbala uhlukaniswe ngephepha le-kraft elimhlophe kanye nombhalo ophuzi ephepheni le-kraft.

Ifilimu ye-PP ingasetshenziswa ephepheni ukuze ilivikele emanzini. Ukuhlanganiswa kwezendlalelo, ukuphrinta kanye nokwenza izikhwama. Izindlela zokuvula nezembozo zangemuva zihlukaniswe ngokuvala ukushisa, ukugoqa iphepha kanye nokugoqa.

Uma kukhulunywa ngesikhwama sokuqala sokuthenga iphepha le-kraft, sazalwa ngo-1908 eSt. Paul, eMinnesota, e-USA. Omunye umnikazi wesitolo sokudla sendawo, uWald Duvena, useqalile ukufuna izindlela zokuvumela abathengi ukuthi bathenge okwengeziwe ngesikhathi esisodwa ukuze bathuthukise ukuthengisa. UDuvina ukholelwa ukuthi kufanele kube yisikhwama esenziwe kusengaphambili esingabizi kakhulu futhi esilula ukusisebenzisa, futhi esingathwala okungenani amakhilogremu angu-75.

Ngemva kokuhlolwa okuphindaphindiwe, wavala ukuthungwa kwalesi sikhwama ephepheni le-kraft ngoba senziwe ngama-conifers anemicu yokhuni emide, futhi waphathwa ngamakhemikhali e-caustic soda athambile kanye ne-alkali sulfide ngesikhathi senqubo yokupheka, okwenza amandla okuqala e-fiber yokhuni awonakali kangako, ngakho-ke iphepha lokugcina elikhiqizwayo lixhunywe ngokuqinile ne-fiber, futhi iphepha liqinile futhi lingamelana nokucindezelwa okukhulu ngaphandle kokuphuka.

Eminyakeni emine kamuva, kwazalwa isikhwama sokuqala sephepha lokuthenga. Ingaphansi laso liyisikwele futhi linomthamo omkhulu kunezikhwama zephepha zendabuko ezingaphansi kwe-V. Intambo idlula phansi nasemaceleni aso ukuze kwandiswe umthamo waso wokuthwala umthwalo, futhi kwakhiwa izihibe ezimbili zokudonsa engxenyeni engenhla yesikhwama sephepha ukuze kube lula ukusiphakamisa. UDuvena waqamba lesi sikhwama ngegama lakhe futhi wasiqamba njengomnikazi waso ngo-1915. Ngalesi sikhathi, inani lokuthengisa laminyaka yonke lezikhwama zokuthenga ezinjalo selidlule izigidi eziyi-100.

I-Guangdong Chuangxin Packing Group iyinhloko yamabhizinisi aphezulu embonini yezokuthutha kanye nokupakisha ngocwaningo nentuthuko, ukukhiqiza, ukuthengisa. Kunezimpawu zokuhweba zomkhiqizo ezifana ne-Yinuo, zhonglan, Huanyuan, T.uRonson,Ci-rratrusrtkanye namalungelo obunikazi okusungula izinto angaphezu kuka-30. Selokhu yasungulwa ngo-2008, umgomo wenkampani “ukwenza umhlaba ube nobungane kakhulu ngokwemvelo” futhi uzibophezele ekubeni ngumholi womhlaba wonke ekupakisheni ukuvikelwa kwemvelo—amabhizinisi angu-500 aphezulu emhlabeni.