Ukunakekela izicathulo kuyadingeka hhayi nje ukubukeka kahle, kodwa futhi nokwandisa impilo yayo yesevisi. Yingakho eminyakeni engaphezu kwamakhulu amahlanu edlule, i-ointment yezicathulo yasungulwa. Phakathi nokubusa kukaCharles II, amaFulentshi asungula izindlela ezilula zokuhlanza izicathulo, ezihlanganisa izithako ezifana neqanda, amafutha omlilo, uviniga noma ubhiya. Ithimba, yebo, laliphansi kakhulu, kepha kwakungekho mqondo okhethekile kuwo. Ngemuva kokumiswa okuphelele, le wax yaphela ukukhanya futhi ithole umthunzi we-matte. Futhi isiNgisi sezikwazi ukuthuthukisa leli thuluzi futhi zithole imiphumela engcono kakhulu futhi zikholelwa ukuthi isihloko sabafaki bemithi kumele bagcine kubo.
Njengamanje, kunabakhiqizi abaningi abakhiqiza izicathulo zesihlangu kusukela ezinhlobonhlobo ezihlukahlukene. Kodwa-ke, abalandeli bezingoma zasendulo zesiNgisi basinda, futhi kuze kube yilolu suku basebenzisa i-molasses, i-wax, i-soot soot, i-linseed, i-castor nama-turpentine amafutha, i-shellac, njll. Amafutha anjalo wokuhlanza izicathulo ngokusho zokupheka ezindala abizwa ngokuthi abakhiqizi bawo: i-Hunter's varnish, wax UNichola, izitimela zikaKelner noBruner.
Zonke izinhlobo ezahlukene ze-gutalin zanamuhla zingahle zihlukaniswe ngokusho kohlobo lwe-solvent oyinhloko, lapho indima idlala khona yi:
- Wax ngesisekelo samanzi, okuyinto ezimweni eziningi kungenasiphelo. Izindlela ezinjalo zizinakekela izicathulo ezibonakalayo kuphela, hhayi ngcono kuzo zonke izimo zayo;
- kusho ukuthi kusekelwe kumafutha we-turpentine (indebe ibizwa ngokuthi yi-turpentine) iyashisa futhi ibe nephunga elimqoka. Uma usebenzisa futhi uzigcina, kufanele uhambisane nemithetho ethile nemithetho yokuphepha. Amafutha wezicathulo zesikhumba ezisekelwe ku-turpentine ngokuvamile avame ukufakwa emathini amathini anamabhodlela afanelekile okuvimbela ukuqhuma kwe-turpentine;
- I-Gutalin esekelwe kumafutha e-mink yindlela ebiza kakhulu yokuhlanza izicathulo.
Kuze kube yimanje, kunezicucu ezenziwe ngokusebenzisa ubuchwepheshe obunobumba - isisekelo sabo ngamanzi kanye ne-turpentine.
Ungakhetha kanjani amafutha okuhlanza izicathulo?
Imakethe yezicathulo zesikhumba zanamuhla ingahlukaniswa ngokuthi:
- ukhilimu wamakhemikhali, okunconywa ukuthi usetshenziswe ngenkathi efudumele. I-Emulsion kanye ne-emulsion yamanzi esekelwe ukunakekelwa kwezicathulo cishe ayiqukethe izixazululo (ngokuvamile kuvame ukusetshenziswa kwamanzi), ngakho-ke isimo sabo sengqondo ezicathulweni siyinkimbinkimbi kakhulu. Lawa mathuluzi anconywa ukuba asetshenziswe uma unakekela izicathulo ezibiza kakhulu. Izinga lokuvikelwa emanzini emswakheni liphansi kakhulu kunamafutha amancane, noma kunjalo amalungiselelo amanzi anika isikhumba ukukhanya okukhulu futhi okucebile;
- ukhilimu omuncu, okusetshenziselwa ukunakekelwa kwezicathulo nsuku zonke ngesikhathi sekwindla nobusika. Lezi zixazululo zisekelwe ezakhiweni eziphilayo ezifana ne-wax, amafutha ezilwane, ama-colorants kanye nama-solvents. Ukuthola amafutha angcolile asemzimbeni, kufanele kukhunjulwe ukuthi unephunga elimnandi.
Ngenxa yezizathu ezithile, abathengi abadume kakhulu yizicathulo
Ukuze ukhethe ukhilimu ofanele, ngaphambi kokuthenga, kufanele ufunde ngokucophelela ukwakheka kwawo. Uma okuqukethwe okunamafutha kungaphezu kuka-40%, ukhilimu ungavikela izicathulo emanzini futhi wenze isikhumba sibe sikhulu kakhulu. Okuqukethwe okuphezulu kwe-abicah noma i-wax kubonisa ukuthi ukhilimu ukhanyisa. Izixazululo zisiza ukuqeda uthuli nokuthungwa, nokudweba - ukukhomba izindawo eziphelile.