Siv kraft ntawv rau cement sacksmuaj kev sib xyaw ua ke ntawm qhov zoo thiab qhov tsis zoo ntawm ib puag ncig, uas txuas nrog rau cov khoom siv cov txheej txheem tsim khoom, durability, recyclability, thiab kawg - ntawm - kev tswj lub neej. Hauv qab no yog cov ncauj lus kom ntxaws:
Zoo Environmental Impacts:
Renewable & Biodegradable Raw Material Base
Kraft daim ntawv feem ntau yog tsim los ntawm softwood pulp (piv txwv li, ntoo thuv, spruce) tau los ntawm cov hav zoov tswj tau ruaj khov. Tsis zoo li cov hnab yas (muab los ntawm tsis yog- roj av txuas ntxiv), ntoo yog cov khoom siv txuas ntxiv dua tshiab- tsob ntoo tuaj yeem rov cog thiab rov cog qoob loo kom tswj tau qhov kaw - cov saw hlau.
Uncoated kraft ntawv yog tag nrho biodegradable thiab compostable nyob rau hauv tej yam ntuj tso tej yam kev mob, tawg mus rau hauv cov organic teeb meem yam tsis tau tawm hauv microplastic residues (qhov teeb meem loj nrog cov hnab yas cement).
Siab Recyclability & Circularity
Kraft daim ntawv muaj cov khoom siv rov ua dua tshiab: cov hnab ntim cement siv tau tuaj yeem sau tau, rub tawm, thiab rov ua dua rau hauv cov khoom siv tshiab (xws li, qis dua - ntawv qib, duab los qhia, lossis cov hnab ntawv kraft rov qab). Qhov no txo qhov kev thov rau cov ntoo nkauj xwb thiab tshem tawm cov khib nyiab los ntawm qhov chaw pov tseg.
Ntau lub tuam txhab cement tam sim no muab cov kev pab cuam rov qab rau cov khoom siv kraft, ntxiv dag zog rau cov khoom siv hauv kev tsim kho.
Tsis zoo Environmental Impacts:
Cov pa roj carbon qis dua piv rau cov kev xaiv yas
Kev tsim cov ntawv kraft feem ntau eits tsawg lub tsev cog khoom roj (GHG) dua li kev tsim cov hnab yas. Pulping thiab papermaking txheej txheem, tshwj xeeb tshaj yog thaum siv biomass zog (piv txwv li, ntoo khib nyiab rau roj), muaj cov pa roj carbon tsawg dua li cov extraction, refining, thiab extrusion roj av-raws li plastics.
Tsis tas li ntawd, cov hnab ntawv kraft muaj qhov hnyav dua rau ib chav tsev ntim ntau dua li cov hnab yas tuab, uas txo cov roj noj thiab GHG emissions thaum thauj.
Txo Plastic Pollution Risk
Cov hnab yas MAAs yog qhov ua rau tawg thaum tuav, ua rau muaj kab mob microplastic hauv cov chaw tsim kho, av, thiab dej hauv lub cev. Kraft daim ntawv hnab, los ntawm qhov sib piv, tsis txhob tso cov microplastics -txawm tias lawv tsim kua muag, cov ntawv fibers decompose ib txwm dhau sijhawm, txo qhov ntev - lub sij hawm ib puag ncig kev puas tsuaj.
Kev siv zog ntawm Pulp & Paper Production
Kraft pulping (tus txheej txheem rau kev ua cov ntawv kraft muaj zog) yog dej thiab lub zog - hnyav. Ib tuj ntawm kraft pulp yuav tsum tau ntau txhiab liters dej, thiab thaum cov mills niaj hnub siv cov txheej txheem dej feem ntau, tseem muaj kev pheej hmoo ntawm cov dej khib nyiab uas muaj cov pa phem (xws li lignin) yog tias tsis kho kom zoo.
Kev siv hluav taws xob hauv papermaking-txawm tias muaj biomass- tuaj yeem ua rau muaj kev puas tsuaj yog tias tsob ntoo tau txais txiaj ntsig tsis zoo, lossis rau GHG emissions yog siv fossil fuels los ntxiv cov kev xav tau ntawm lub zog.
Txheej -Cov Nqi Ib puag ncig
Pure kraft ntawv tsis yog dej - lossis noo noo- tiv taus, yog li cov hnab ntim cement feem ntau raug kho nrog polyethylene (PE) laminations lossis wax coatings los tiv thaiv cov cement to thiab ya raws.
Cov txheej txheej no nyuaj rau kev rov ua dua tshiab: txheej yas yuav tsum tau muab cais tawm ntawm daim ntawv fiber ntau (tus nqi kim thiab lub zog- cov txheej txheem hnyav), thiab cov hnab ntim tsis sib cais tuaj yeem mus rau hauv qhov chaw pov tseg. Wax coatings kuj tuaj yeem cuam tshuam biodegradability, raws li cov quav ciab txheej ua qhov cuam tshuam rau microbial decomposition.
Pov tseg tiam & pov tseg cov kev sib tw
Cement sacks ua hnyav heev nrog cov cement hmoov thaum siv. Cov hnab khib nyiab feem ntau tsis lees txais los ntawm cov chaw rov ua dua tshiab, vim tias cov cement seem tuaj yeem ua rau cov khoom siv pulping puas thiab txo cov ntawv zoo.
Qhov no txhais tau hais tias ntau cov kraft cement sacks xaus rau hauv qhov chaw pov tseg, qhov twg lawv cov decomposition qeeb qeeb (vim yog txheej txheej los yog kev sib kis), thiab cov cement hmoov tuaj yeem hloov cov av pH hauv zos.
Deforestation Risks (Yog tias Sourcing tsis muaj txiaj ntsig)
Thaum cov ntawv kraft cia siab rau cov ntoo txuas ntxiv, tsis muaj kev tswj hwm kev txiav ntoo rau kev tsim cov paj ntoo tuaj yeem ua rau muaj kev cuam tshuam hav zoov, qhov chaw nyob, thiab biodiversity poob qis-tshwj xeeb tshaj yog nyob rau thaj tsam uas tsis muaj kev tswj hwm hav zoov tsis muaj zog. Qhov no ua rau tsis zoo rau cov khoom siv eco-cov ntaub ntawv pov thawj tus phooj ywg tshwj tsis yog tias tau txais los ntawm cov hav zoov uas muaj ntawv pov thawj (xws li FSC lossis PEFC tau ntawv pov thawj).
