Raws li kev paub txog ib puag ncig tau nce ntxiv hauv cov pej xeem kev nco qab, cov khoom siv polyester tau maj mam tshwm sim los ua cov lus nrov hauv cov khaub ncaws thiab tsev textile industries, nkag mus rau pej xeem qhov muag nyob rau hauv cov chij ntawm "tig pov tseg rau hauv cov khoom muaj nqis" thiab "eco- phooj ywg, qis- carbon" ntau lawm. Txawm li cas los xij, qhov kev tsis sib haum xeeb nyob ib puag ncig nws tseem tsis tau tso tseg: Puas yog siv polyester ua tau zoo dua li polyester nkauj xwb? Qee tus hais tias nws txuag lub zog thiab txo cov pa roj carbon emissions, thaum lwm tus thuam nws rau kev tso tawm ntau dua ntawm microplastics. Niaj hnub no, ua raws li cov kws paub txog kev paub ntawm textile fabrics, peb yuav qhia meej txog qhov sib txawv ntawm ob qho tib si thiab debunk cov kev xav tsis zoo ib zaug thiab rau tag nrho.
Ua ntej, cia peb tsim cov ntsiab lus xaus: Recycled polyester tsis inherently * ntau * teeb meem; es, nws cov pros thiab cons tsuas yog ntau pronounced. Cov xwm txheej tshwj xeeb ntawm kev pheej hmoo cuam tshuam nrog txhua yam khoom sib txawv- txhais tau tias tsis yog "tshem tawm ntau" dua li lwm yam -tsis tau qhov zoo ntawm ib puag ncig ntawm cov khoom siv polyester tau maj mam raug cuam tshuam los ntawm nws tus kheej cov kev txwv.
Lub ntsiab kom zoo dua ntawm cov khoom siv polyester yog nyob rau hauv nws "subtractive" nyhuv ntawm ib puag ncig. Nws yog tsim los siv cov ntaub ntawv pov tseg-xws li pov tseg PET lub raj mis yas thiab siv cov khoom siv textiles- ua tiav los ntawm theem ntawm kev sib cais, kom tsis muaj menyuam, thiab yaj- spinning. Cov txheej txheem no tshem tawm qhov yuav tsum tau cia siab rau fossil fuels xws li roj av, ua rau muaj zog ntau dua - voj voog ntau lawm. Raws li kev tshawb fawb cov ntaub ntawv, rau txhua 100 kilograms ntawm recycled polyester tsim, lub ntiaj teb no warming peev xwm yog txo los ntawm 32.09 kilograms ( ntsuas nyob rau hauv CO₂ sib npaug) piv rau nkauj xwb polyester; Tsis tas li ntawd, nws cov txiaj ntsig rau acidification kuj tseem qis dua. Qhov no yog qhov laj thawj tseem ceeb vim li cas nws thiaj li tau txais kev sib tw ua "eco- phooj ywg ntaub."
Txawm li cas los xij, qhov tseem ceeb ntawm qhov kev tsis sib haum xeeb nyob rau hauv qhov tseeb no: Recycled polyester * puas * tseeb tso tawm ntau microplastics dua nkauj xwb polyester. Thaum lub sij hawm rov ua dua txheej txheem, cov neeg kho tshuab shredding thiab yaj-spinning tuaj yeem ua rau cov qauv fiber ntau puas, uas ua rau cov fibers tsis muaj zog uas muaj feem ntau tawg. Yog li ntawd, thaum muaj kev sib txhuam ntawm kev hnav niaj hnub thiab kev ntxhov siab ntawm kev ntxuav, cov fibers no tau ntim ntau dua ntawm microplastics. Cov kev tshawb fawb qhia tau hais tias, qhov nruab nrab, cov khoom siv rov ua dua polyester tso tawm 55% ntau microplastics thaum ntxuav dua li polyester nkauj xwb. Ntxiv mus, cov khoom no zoo li me me, ua rau lawv muaj peev xwm hla cov dej khib nyiab pov tseg thiab nkag mus rau hauv dej thiab av, yog li tsim lub voj voog ntawm cov pa phem los ntawm cov khoom noj.
Cov txiaj ntsig ib puag ncig ntawm cov khoom siv polyester rov ua dua tshiab yog, hauv qhov tseem ceeb, tsis tu ncua eroded los ntawm nws tus kheej cov kev txwv. Ntawm ib sab, nws qhov kev rov ua dua tshiab yog txwv; fiber ntau lub zog txo qis nrog txhua lub voj voog rov ua dua, ua rau cov khoom siv tsis zoo tom qab ntau qhov sib tw. Yog li ntawd, feem ntau ntawm cov khoom siv rov ua dua polyester thaum kawg xaus rau hauv qhov chaw pov tseg lossis qhov cub. Ntawm qhov tod tes, thoob ntiaj teb kev tsim cov hluavtaws fibers txuas ntxiv nce. Txawm hais tias kev siv cov polyester rov ua dua tshiab, qhov kev loj hlob ntawm nkauj xwb polyester tseem nrawm dua; qhov sib txawv ntawm ob qhov txuas ntxiv nthuav dav, yog li cuam tshuam rau tag nrho cov txiaj ntsig ib puag ncig.
Ntau tus neeg txhawj xeeb tias microplastics ua rau muaj kev hem thawj rau tib neeg kev noj qab haus huv; txawm li cas los xij, tsis tas yuav muaj lub tswb ntau dhau. The human epidermis acts as a dense barrier, and the microplastic particles generated by the abrasion of polyester fibers are significantly larger than skin pores. Tsis tas li ntawd, qhov concentration ntawm microplastics tau ntsib hauv cov xwm txheej niaj hnub hnav tau poob qis dua qhov kev nyab xeeb. Hauv kev sib piv, qhov kev txhawj xeeb ntau dua yog qhov muaj cov tshuaj lom neeg nyob hauv cov neeg ua haujlwm - xws li formaldehyde- pom hauv cov ntaub tsis zoo -.
Thaum kawg, qhov kev sib cav no taw qhia rau qhov tseeb tseem ceeb: ib puag ncig kev ruaj ntseg hauv kev lag luam zam tsis tuaj yeem daws tau los ntawm "cov khoom hloov pauv." Recycled polyester ua haujlwm tsuas yog txhais tau tias "txo cov pa phem," tsis yog "kev kho kom zoo." Tshwj tsis yog tias tag nrho cov khoom tsim tawm ntawm cov hluavtaws fibers raug txo qis, tsuas yog hloov cov ntaub ntawv nkauj xwb nrog cov khoom siv rov ua dua tshiab yuav ua tsis tiav los daws cov teeb meem ib puag ncig xws li cov pa phem yas thiab cov peev txheej depletion.
Rau cov neeg siv khoom nruab nrab, tsis tas yuav txhob txwm tshaj tawm cov ntaub uas ua los ntawm cov khoom siv polyester, thiab nws tsis tsim nyog los fetishize lawv eco-tus cwj pwm zoo. Los ntawm kev xaiv cov npe nrov thiab cov khoom lag luam uas tau lees paub los ntawm Lub Ntiaj Teb Recycled Standard (GRS), thiab los ntawm kev txo qhov zaus ntawm kev ntxhua khaub ncaws thaum siv txhua hnub, cov neeg siv khoom tuaj yeem txo qis microplastic shedding thiab ua kom muaj txiaj ntsig zoo rau kev tiv thaiv ib puag ncig.