I-Artwork Conservation iyinqubo ebucayi futhi eyinkimbinkimbi edinga ukukhethwa ngokucophelela kwezinto zokwakha ukuze kuqinisekiswe ukulondolozwa kanye nobuqotho bezingcezu zobuciko. I-Cellulose Tashers, iqembu lamakhompiyutha lisuselwa ku-cellulose, lithole izicelo ezimbonini ezahlukahlukene zezakhiwo zazo ezihlukile, kufaka phakathi ukuqina, ukuzinza, nokugcinwa kwamanzi. Endaweni yokulondolozwa kobuciko, ukuphepha kweI-Cellulose Afersukucatshangelwa okubucayi. Lesi sibukezo esibanzi sihlola izici zokuphepha ze-cellulose afers, ezigxile ezinhlotsheni ezifana ne-hydroxypropyll methylcellulose (HPMC), ne-ethyl hydroxyethyls celtulose (eHEC), kanye ne-carboxymethyl cellulose (CMC).
1. I-Hydroxypropyl methylcellulose (HPMC)
a. Ukusetshenziswa Okujwayelekile
I-HPMC ivame ukuqashwa ngokulondolozwa kwezindawo zayo zokugcina amanzi. Imvelo yayo eguquguqukayo yenza ilungele ukudala izinamathela kanye nokuhlanganisa ekubuyiselweni kobuciko bephepha.
b. Ukucatshangelwa Kwezokuphepha
I-HPMC imvamisa ibhekwa njengokuphephile kokulondolozwa kobuciko lapho isetshenziswa ukwahlulela. Ukuhambisana kwaso okuhlukahlukene okuhlukahlukene kanye nokusebenza kwayo ekugcinweni kwayo ukuthembeka kwesakhiwo sephepha lobuciko bephepha kufaka isandla ekwamukelweni kwalo enkombeni yokongiwa kwemvelo.
2. I-Ethyl Hydroxyyethyl cellulose (EHEC)
a. Ukusetshenziswa Okujwayelekile
I-EHEC ingenye i-ether ye-cellulose esetshenziswe ngokulondolozwa kwezakhiwo zayo zokuqina nokuzinza. Ingaqashwa ekwakhiweni okuhlukahlukene ukufeza izici ezifiselekayo.
b. Ukucatshangelwa Kwezokuphepha
Ifana ne-HPMC, i-Ehec ibhekwa njengephephile kwizicelo ezithile zokonga. Ukusetshenziswa kwayo kufanele kuhambisane nezidingo ezithile zomsebenzi wobuciko futhi kungaphansi kokuhlolwa okuphelele ukuze kuqinisekiswe ukuhambisana.
3. I-Carboxymethyl cellulose (CMC)
a. Ukusetshenziswa Okujwayelekile
I-CMC, ngezindawo zayo ezikhulisa kanye nokuzinza, uthola uhlelo lokusebenza ezimbonini ezahlukahlukene, kufaka phakathi ukongiwa. Kukhethwa kususelwa kwikhono layo lokuguqula ukubonwa kwezixazululo.
b. Ukucatshangelwa Kwezokuphepha
I-CMC ngokuvamile ibhekwa njengephephile ngezinhloso ezithile zokonga. Iphrofayili yayo yokuphepha yenza ukuthi ilungele ukusetshenziswa ekwakhiweni okuhloselwe ukuzinza nokuvikela ubuciko, ikakhulukazi ezindaweni ezilawulwayo.
I-4. Ukulondolozwa okuhle kakhulu
a. Ukuhlola
Ngaphambi kokufaka noma iyiphi i-cellulose ether ku-Archwork yobuciko, abasebenzi bagcizelela ukubaluleka kokwenza ukuhlolwa okuphelele endaweni encane, engabonakali. Lesi sinyathelo siqinisekisa ukuthi lokho okuqukethwe kuyahambisana nobuciko futhi akunamiphumela emibi.
b. Ukuxoxisana
Ama-Art Conservators kanye nabaqeqeshiwe abadlala indima ebaluleke kakhulu ekunqumeni izinto ezifanele nezindlela ezifanele kakhulu ukongiwa. Ubuchwepheshe babo buqondisa ukukhethwa kwezithambekela ze-cellulose nezinye izinto ukufezekisa imiphumela efiselekayo yokongiwa.
I-5. Ukulandela umthetho wokulawula
a. Ukubambelela kumazinga
Izenzo zokongiwa kwemvelo zivumelanisa namazinga athile nemihlahlandlela yokuqinisekisa izinga eliphakeme kakhulu lokunakekelwa kwezobuciko. Ukubambelela Kulawa Mazinga kubalulekile ukuze kugcinwe ukuphepha nobuqotho benqubo yokulondolozwa.
6.Conclusion
I-Cellulose Tashers efana ne-HPMC, i-Ehec, ne-CMC ingabhekwa iphephile ngokulondolozwa kobuciko lapho isetshenziswa ngokuya ngemikhuba emihle kakhulu. Ukuhlolwa ngokuphelele, ukubonisana nabasebenzi be-Conservation, kanye nokubambelela kumazinga kubaluleke kakhulu ekuqinisekiseni ukuphepha kanye nokusebenza kahle kwe-cellulose afesser ukongiwa kwezobuciko. Njengoba insimu yokongiwa ivela, ucwaningo oluqhubekayo kanye nokubambisana phakathi kochwepheshe banikela ekuhlazisweni kwemikhuba, abahlinzeki abaculi kanye namathuluzi athembekile wokulondolozwa kwamagugu ethu amasiko.
Isikhathi sePosi: Nov-22-2023