Konke odinga ukukwazi mayelana nokupakishwa kwe-cellulose
Uma ubukade ubheka izinto zokupakisha ezinobungane bemvelo, amathuba wezwa nge-cellulose, eyaziwa nangokuthi yi-cellophane.
I-Cellophane iyinto ecacile, enobunzima obukhona kusukela ekuqaleni kweminyaka yama-1900s. Kepha, kungakumangaza ukuthi ufunde lelo seliophane, noma ukufakwa kwefilimu kwe-cellulose, kusekelwe kwizitshalo, kuyabonakala, nomkhiqizo "oluhlaza" ngempela.
Kuyini ukupakishwa kwe-cellulose?
Kutholwe ngonyaka we-1833, iselula kuyinto etholakala ngaphakathi kwezindonga zezitshalo. Ihlanganiswe uchungechunge olude lwama-molecule kashukela, okwenza kube yi-polysaccharide (igama lesayensi le-carbohydrate).
Lapho amaketanga amaningi we-cellulose e-hydrogen bond ndawonye, akha okuthile okubizwa ngokuthi ama-microfibrils, okuyinto emangalisayo futhi anzima. Ubulukhuni bale microfibrils lwenza i-cellulose i-molecule enhle kakhulu ukuyisebenzisa ekukhiqizweni kwe-bioplastic.
Ngaphezu kwalokho, i-cellulose iyi-biopolymer enenhlamba emhlabathini wonke umhlaba, futhi izinhlayiya zayo zinemithelela emincane yezemvelo. Yize kunezindlela ezimbalwa ezahlukahlukene ze-cellulose. Ukupakishwa kokudla kwe-Cellulose kuvame ukuba yi-cellophane, okucacile, okuncane, okufana neplastiki okufana neplastiki.
Kwenziwa kanjani imikhiqizo yokupakisha ye-cellulose ifilimu?
I-Cellophane idalwe kusuka ku-cellulose ethathwe kukotini, ngokhuni, i-hemp, noma eminye imithombo yemvelo evunwa ngendlela efanele. Kuqala njenge-pulp emhlophe yokuqeda, okuyi-92% -9% cellulose. Ngemuva kwalokho, ipulpulel pullilose eluhlaza idlula kulezi zinyathelo ezine ezilandelayo okufanele ziguqulwe ibe yiselula.
1. I-cellulose ichithwa ku-alkali (usawoti oyisisekelo, oonoric wamakhemikhali wensimbi ye-alkaline) bese edala izinsuku eziningana. Le nqubo yokuqothula ibizwa ngokuthi i-merrerization.
2. Kusetshenziswa i-carbon dilevulfide ku-pulp enobuhle ukudala isisombululo esibizwa ngokuthi yi-cellulose xanthate, noma i-viscose.
3. Lesi sixazululo sengezelwe kunhlanganisela ye-sodium sulfate kanye ne-dilite sulfuric acid. Lokhu kuguqula ikhambi libuyele ku-cellulose.
4. Ngemuva kwalokho, ifilimu ye-cellulose idlula eminye imishini emithathu. Okokuqala ukususa isibabule, khona-ke ukuhlanganisa ifilimu, futhi ekugcineni ukwengeza i-glycerin ukuze ikwazi ukuqina.
Umphumela wokugcina uyi-cellophane, esetshenziswa embonini yokupakisha yokudla, ngokuyinhloko ukudala izikhwama ze-cellophane ezingathandeki noma "izikhwama ze-cello".
Yiziphi izinzuzo zemikhiqizo ye-cellulose?
Ngenkathi inqubo yokudala ukufakwa kwe-cellulose iyinkimbinkimbi, izinzuzo zicacile.
AmaMelika asebenzisa izikhwama zepulasitiki eziyizigidi eziyizinkulungwane eziyikhulu ngonyaka, edinga imiphongolo eyizigidi eziyizinkulungwane eziyishumi nantathu njalo ngonyaka owodwa. Ngaphandle kwalokhu, izilwane zasolwandle eziyi-100 000 zibulawa ngezikhwama zepulasitiki unyaka nonyaka. Kuthatha iminyaka engaphezu kwengu-20 yezikhwama zepulasitiki ezisuselwa ku-petroleum zokudicilela phansi olwandle. Lapho bekwenza, bakha amapulasitiki amancane angena ngokuqhubekayo iketanga lokudla.
Njengoba umphakathi wethu ukhula wazi ngemvelo, siyaqhubeka nokusesha ezinye izindlela ze-eco-friendly, biodegradable ezinye izindlela ezisuselwa ku-petroleum asuselwa ku-petroleum.
Ngaphandle kokuba yindlela esetshenziselwa ukufakwa kwepulasitiki, ukufakwa kwama-cellulose ifilimu kuveza izinzuzo eziningi zemvelo:
I-Sustainable & Bio-based
Ngoba i-cellophane idalwe kusuka ku-cellulose evunwa isuka ezitshalweni, kungumkhiqizo oqhubekayo otholwe kusuka kwizisetshenziswa ezisuselwa kwi-bio, ezivuselelekayo.
Biodegradable
Ukupakishwa kwefilimu ye-Cellulose kuyinto biodebradable. Ukuhlolwa kukhombisile ukuthi i-cellulose Packang BiodeGrades ezinsukwini ezingama-28-60 uma umkhiqizo ungamiswa futhi izinsuku ezingama-80-120 uma uhlanganiswe. Kuphinde kwangilimaza emanzini ngezinsuku eziyi-10 uma kungagunyaziwe futhi cishe ngenyanga uma ihlanganiswa.
-Nobuthenti
I-Cellophane futhi kuphephile ukubeka inqwaba yomquba ekhaya, futhi akudingi indawo yokuthengisa yokuhlanganisa.
Izinzuzo Zokupakisha Zokudla:
Izindleko eziphansi
Ukuhlanganiswa kwe-Cellulose sekudlule kusukela ngo-1912, futhi kungukuphuma komkhakha wamaphepha. Qhathanisa nezinye ezinye izindlela zepulasitiki ze-eco-friendly, i-cellophane inezindleko eziphansi.
Ukumelana nomswakama
Izikhwama ze-Biodegradable Cellophane zimelana nomswakama kanye nomphunga wamanzi, ukuzenza ukukhetha okuhle kakhulu kokubonisa nokugcina izinto zokudla.
Ukumelana Kafutha
Ngokwemvelo zimelana namafutha namafutha, ngakho-ke izikhwama ze-cellophane zilungele izimpahla ezibhakiwe, amantongomane, nokunye ukudla okunamafutha.
Ukushisa kuthambisa
I-Cellophane idla ukushisa. Ngamathuluzi afanele, ungashisa ngokushesha futhi kalula uVale futhi uvikele imikhiqizo yokudla egcinwe ezikhwameni ze-cellophane.
Liyini Ikusasa Le-Cellulose Packal?
Ikusasa leifilimu ye-celluloseUkupakishwa kubukeka kukhanya. Umbiko wemakethe yesikhathi esizayo Ubikezela ukufakwa kwe-cellulose kuzoba nesilinganiso sokukhula sonyaka esingu-4,9% phakathi konyaka we-2018 no-2028.
Amaphesenti angamashumi ayisikhombisa alokho kukhula kulindeleke ukuba kwenzeke emkhakheni wokudla kanye nophuzo. I-Biodegradable Cellophane Packang Film kanye nezikhwama eziba yisigaba esiphezulu sokukhula okulindelekile.
I-Cellophane nokupakishwa kokudla akuzona ukuphela kwezimboni ze-cellulose ezisetshenziswayo. I-Cellulose ivunyelwe yi-FDA ukuze isetshenziswe ku:
Izithasiselo Zokudla
Izinyembezi zokufakelwa
I-filler yezidakamizwa
Izilonda zokwelashwa
UCellophane ubonakala kaningi emkhakheni wokudla kanye nophuzo, ama-Pharmaceuticals, ukunakekelwa komuntu siqu, ukunakekelwa kwasekhaya, kanye nemikhakha yezitolo.
Ingabe imikhiqizo yokupakisha ye-cellulose ilungele ibhizinisi lami?
Uma njengamanje usebenzisa izikhwama zepulasitiki zamaswidi, amantongomane, izimpahla ezibhakiwe, njll. Kwenziwe kusuka ku-resin ebizwa nge-Medanflex ™ eyenziwe nge-cellulose ethathwe kusuka epulpini lezinkuni, izikhwama zethu ziqinile, zicacile futhi ziqinisekisiwe.
Sinikeza izitayela ezimbili zezikhwama ze-modergradable cell kusayizi ahlukahlukene:
Izikhwama ze-Cellophane Flat
Izikhwama ze-cessete ezihleliwe
Siphinde futhi sinikeze umgcini wesandla, ngakho-ke ungashisa ngokushesha uphawu lwezikhwama zakho ze-cellophane.
Ekuqaleni kokuqala, sizibophezele ekuhlinzekeni izikhwama ezisezingeni eliphakeme, ezinobungane be-cellophane kanye nokupakishwa okukhohlisayo. Uma unesifiso sokufunda kabanzi mayelana nokupakishwa kwethu kwefilimu yethu noma eminye imikhiqizo yethu, sicela uxhumane nathi namuhla
I-PS qiniseka ukuthi uthenge izikhwama zakho ze-cello kusuka kubathengisi abadumile njengokupakishwa okuhle kokuqala. Amabhizinisi amaningi emakethe "eluhlaza" ama-cello izikhwama ezenziwe ngePolypropylene Plastic.
Get free sample by williamchan@yitolibrary.com.
Imikhiqizo ehlobene
Isikhathi Seposi: Meyi-28-2022