Imiterere y’ibirahuri byuzuye, akenshi ishingiye kuri silica nk'igice cy'ingenzi gikora ikirahuri hamwe n’ibirahuri (nka feldspar cyangwa borax) kugira ngo igabanye ubushyuhe bwo gushonga n’ibirahuri (nk'ibirahuri by'icyuma ku mabara yihariye) ku ibara, akenshi bigorana kugera ku rwego ruhamye cyangwa rwiza rw’ibirahuri - ibibazo bigira ingaruka ku bwiza bw'ibicuruzwa no ku isoko. Izi mbogamizi si ubwiza gusa; ibirahuri bidahuje bifite uduce duto dushobora gutuma ibikoresho byo ku meza bisa nk'aho bidahuye, bigagabanya ubwiza bwabyo ku bacuruzi n'abaguzi. Isura idasobanutse muri rusange ntigaragaza ubuziranenge bwiza, ishyira ibicuruzwa mu bice bihendutse nubwo umubiri wa ceramic ubwawo waba uri ku rwego rwo hejuru. Kudahuza ni ikibazo cyane cyane ku birahuri by'imitako n'ibikoresho by'isuku, aho irangi ringana ari ingenzi ku guhuza amaso. Impamvu nyamukuru z'ibi bibazo ni nyinshi: gutandukana nabi kw'uduce duto bibaho iyo ibice by'ibirahuri bidahuye neza, bigatuma habaho uduce twinshi tw'ibirahuri cyangwa ibirahuri bishonga mu buryo butandukanye. Guhuza ibice by'ibirahuri - bikunze kugaragara ku duce duto dufite ubushyuhe bwinshi bw'ubuso - bitera uduce duto twirinda gushonga, bigasiga ahantu habi ku buso bwaka. Guhuza ibintu kutuzuye, akenshi biterwa n'ubushyuhe budahagije bwo gutwika (buri munsi y'urugero rwiza rw'ibice bya glaze) cyangwa ingano idahuye y'amazi (igabanuka cyane ku buryo ishobora gushonga cyangwa ikaba nyinshi cyane bigatuma amazi atemba cyane), bisiga silika cyangwa uduce tw'amabara tudahuye neza twinjijwe mu gice cya glaze. Utwo duce tudahuye neza duhagarika uburyo bworoshye bwo gusohora, tugakwirakwiza urumuri aho kurureka rukagira ishusho imwe, bigatuma rusa neza, rufite utudomo cyangwa rutoroshye rudashobora kugera ku bipimo by'ubuziranenge bw'inganda.

Ifu ya Kaolin ikemura ibi bibazo by'ingenzi binyuze mu miterere yayo yihariye, ihereye ku miterere yayo myiza cyane, isa n'iy'iplate, ipima hagati ya mikorometero nyinshi kugeza kuri mikorometero ntoya—irusha izindi firime nyinshi zuzuza ibara rya ceramic. Mu gihe cyo kuvanga ibara rya glaze, utwo duce tumeze nk'ibara rya plate dukora nk' "ibifasha mu gutatanya," bigatandukanya ibice nk'amabara na silika binyuze mu kwishyira hagati y'ibice. Ibi bituma buri gace ka glaze gagira imiterere ihamye, bigakuraho imifuka ikomeye itera gushonga ku buryo butaringaniye. Bitandukanye n'uduce tw'uruziga dukunda guhurira hamwe, imiterere ya kaolin itera gukwirakwira neza, ndetse no mu buryo bwo kuvanga vuba cyane bukoreshwa mu gukora ibara rya ceramic ku rwego runini. Mu gihe cyo gutwika ubushyuhe bwinshi—icyiciro cy'ingenzi aho ibara rya glaze rihinduka kuva ku gitambaro cyumye, cy'ifu kikagera ku gitambaro cyoroshye, gisa n'ikirahure—uduce tumeze nk'ibara rya kaolin twishyira hamwe ku buso bwa ceramic, bigatuma habaho matrix imwe kandi ikomeye. Uku guhuza neza gutuma ubushyuhe bukwirakwira neza binyuze mu kwemeza ko ubushyuhe bukwirakwira neza ku rundi ruhande rwa glaze, bikarinda ahantu hashyushye hatera gushonga cyane cyangwa ahantu hakonje hasiga uduce tudakora neza. Kaolin kandi ikora nk'"umuhindura imiterere y'amazi," igenzura ubukana bw'amazi yashongeshejwe kugira ngo ikwirakwire neza: ubukana bwinshi cyane butuma habaho gukwirakwira ku buryo budahuye, mu gihe ubukana buke cyane butera kwishyira hamwe ku butaka bw'ubuso buhagaze nk'amavasi cyangwa impande z'ubwogero. Uburinganire bwihariye bwa Kaolin bwo gukomera no gupfuka bugenga imiterere y'amazi, bugatuma urwego rwa glaze rugumana ubunini ku buso burambuye (nk'amasahani) n'imiterere igonze (nk'amabakure). Bitandukanye n'ibikoresho byuzuza imiterere (nk'uduce twa quartz cyangwa feldspar) bishobora gukora imiterere mibi nubwo byashongeshejwe, uduce duto twa kaolin duhuza neza na silica na fluxes, bigatuma urwego rw'ikirahure rusa neza kandi rufite ubusumbane buke. Uku kwivanga burundu gukuraho uduce tudakora neza dutera ubukana, bigatuma ubuso bworoshye bugaragaza urumuri neza kugira ngo bube bwiza kandi bwiza.

Indi nyungu y'ingenzi y'ifu ya kaolin ni ubushobozi bwayo bwo guhindurwa kugira ngo ikore urwego rutandukanye rw'urumuri, rutuma abakora ifu ya kaolin bagira ubworoherane budasanzwe bwo guhaza ibyifuzo bitandukanye by'imiterere y'ibicuruzwa bitandukanye—kuva ku bihendutse cyane kugeza ku ikoreshwa rya buri munsi. Uku guhinduka guturuka ku ngaruka za kaolin ku bushyuhe bwa glaze no guhuza uduce duto, bishobora guhindurwa neza binyuze mu guhindura ingano yayo mu buryo bwo kuyitunganya. Ku bibumbano byo mu rwego rwo hejuru (nk'amasafuriya akozwe n'intoki cyangwa ibihangano biciriritse) n'ibikoresho byo ku meza byo mu rwego rwo hejuru (nk'ibibumbano byiza bikoreshwa mu mahoteli meza cyangwa muri resitora zigezweho), abakora ifu bakoresha ingano nini ya kaolin—ubusanzwe 20% kugeza 30% by'ifu ya glaze—bivanze n'urwego rwiza rwo guhindagurika. Ibi birema ubwiza bwimbitse kandi busa n'indorerwamo butuma yongera utuntu duto: ibirango by'ubudodo bwiza byo mu Bushinwa, urugero, bakoresha iyi fu kugira ngo bakore amabara y'amababi ya zahabu agaragara ku buso bugaragara, bahindura amasahani yo kuriramo ibice bitangaje. Ifu ya plaze ishushanyijeho intoki yungukira kuri iyi fuze nziza, kuko ituma imiterere y'indabyo cyangwa imiterere y'ahantu igaragara neza binyuze mu kwerekana urumuri kugira ngo hagaragazwe imitako y'uburoso n'amabara meza. Ku rundi ruhande, igipimo gito cya kaolin (10% kugeza 15%) gitanga irangi ry'urumuri rungana neza n'urumuri rungana neza. Ibi ni byiza ku bikoresho byo ku meza bya buri munsi (nk'ibikombe by'ibinyampeke cyangwa amasahani yo ku meza akoreshwa mu ngo) bisaba ubwiza budasobanutse neza hatabayeho kugaragara nk'aho ari ibintu bisanzwe cyane. Ibikoresho by'isuku (nk'amasafuriya yo mu bwiherero cyangwa amasafuriya yo mu bwiherero) nabyo bikoresha irangi ry'urumuri rungana, kuko irangi rito rituma ubwiherero bushyuha kandi bugatuma abantu barushaho kuryoherwa, mu gihe bikomeza kugira isuku ku irangi ry'urumuri. Uku guhindurwa ni inyungu ihendutse ku bakora: irangi rimwe rya kaolin rishobora gukoreshwa mu byiciro byinshi by'ibicuruzwa, bigabanyiriza gukenera ibikoresho byihariye byo kuzuza no koroshya imicungire y'ibikoresho. Binatuma habaho ihinduka ryihuse ry'imiterere—guhindura kuva kuri irangi ryinshi ujya kuri irangi ryinshi ku murongo w'ibikoresho byo ku meza bisaba gusa guhindura ingano ya kaolin, hatabayeho kuvugurura imiterere yose ya glaze.

Byongeye kandi, uruhare rwa kaolin mu kugaragara kw'urumuri rwongereweho n'uburyo ihura neza n'izindi nyongeramusaruro za glaze, bigatuma habaho imikoranire irushaho kunoza iherezo no kwagura amahirwe yo kuyikoresha. Iyo ihujwe n'ibintu bitanga flux isobanutse (nk'ingufu za borosilicate), kaolin ikora ku kugabanya ubukana bwa glaze ishongeshejwe neza kurusha fluxes gusa. Ubu bunini butuma glaze itembera neza ku buso bwa ceramic, yuzuza utwenge duto cyangwa inenge mu mubiri wa ceramic byashoboraga gufata umwuka bigatera utudomo twijimye. Ingaruka ni ubuso bworoshye cyane, bugaragaza cyane kandi bwujuje ibisabwa ku bicuruzwa bya ceramic. Iyo ikoreshejwe n'ibikoresha ibara (nk'icyuma oxide ku ibara ritukura, cobalt oxide ku ibara ry'ubururu cyangwa titanium dioxide ku bazungu), kaolin igira uruhare runini: ituma glaze idahungabanya ubuziranenge bw'ibara ibuza uduce tw'ibara gushonga, kandi yongera ubukana bw'ibara ikora urufatiro rworoshye kandi rugaragaza urumuri runyura mu urwego rw'ibara ry'amabara. Urugero, glaze za cobalt blue hamwe na kaolin zisa n'izimbitse kandi zuzuye kuko urumuri rugaragaza ku buso bworoshye, runyura mu urwego rw'ibara kabiri (rimwe iyo ryinjiye, rimwe iyo ryijimye) kugira ngo rwongere ibara. Ibara ry'umweru rishingiye kuri titanium dioxide hamwe na kaolini bigira umweru mwiza kandi uhwanye neza binyuze mu gukuraho utudomo twijimye duterwa no gukwirakwira kw'amabara ataringaniye. Uku guhuza ni ingenzi ku bakora ibikoresho by'amabara, kuko bituma batanga amabara meza ndetse n'ubwiza bwo hejuru - ibintu bibiri abaguzi bashyira imbere. Byongeye kandi, kaolini ihuye n'ibintu bitera imbaraga (nk'ibice bya silicate bya zirconium) birinda ko glaze ihinduka mu gihe cyo gukonja, bishobora gutuma habaho utudomo twijimye kandi dukonja twangiza ubwiza. Ibi bituma glaze igumana irangi ryayo nyuma yo gushya, bigatuma kaolini iba ingenzi mu gukora irangi ryiza kandi ryiza rijyanye n'amahame akomeye y'inganda haba ku bwiza no kuramba igihe kirekire.

Irangi zo ku meza zongereweho ifu ya kaolin zitanga irangi ryiza rituma habaho ubwiza n'imikorere myiza, bigatuma ziba ingenzi mu ngo no mu bucuruzi. Mu buryo bwiza, ubuso bworoshye kandi burabagirana buhindura ibikoresho bisanzwe byo ku meza mo ibice birushaho kunoza imiterere y'ibiryo—ikintu cy'ingenzi ku maresitora, abagaburira ndetse n'abarya mu rugo. Amasahani yo ku meza afite irangi rya kaolin atuma inyama zokejwe zisa neza cyane binyuze mu kwerekana urumuri kugira ngo zigaragaze caramelize, mu gihe amasahani afite irangi ryiza atuma salade n'imbuto bisa neza binyuze mu gushyira amabara meza. Mu buryo bwiza, irangi rya kaolin rikora ubuso butagira imyenge burwanya irangi ry'ibiryo kandi bworoshya isuku—ni ingenzi ku ikoreshwa rya buri munsi. Isosi y'inyanya, curry cyangwa divayi itukura (ibintu bisanzwe bisiga irangi) ntibishobora kwinjira mu rubaraza rworoshye, bigahanagurwa byoroshye n'isabune yoroheje n'amazi. Uku kuramba gufite agaciro cyane cyane mu bucuruzi nka resitora, aho ibikoresho byo ku meza bisukurwa kenshi mu byuma byoza amasahani; irangi ryongereweho kaolin rigumana irangi ryaryo kandi ridashobora kwangirika nubwo nyuma y'amasaha amagana yo gukaraba. Ibikoresho byo ku meza bigezweho nk'Ubushinwa bwiza byishingikiriza ku gishushanyo cya kaolin kugira ngo bizamure ibintu by'imitako: imiterere y'amababi ya zahabu, imiterere y'indabyo zashushanyijwe n'intoki cyangwa amashusho akomeye yo kohereza agaragara neza ku buso bugaragara, bigatuma buri gice kiba icyakusanyirizo. Ndetse n'ibikoresho byo ku meza bya buri munsi bihendutse bigira akamaro ku gishushanyo cya kaolin, kuko byongera ubuziranenge bw'ibintu bizwi ko ari byiza—abaguzi bakunze guhuza irangi ribengerana no kuramba, bigatuma ibi bice birushaho kuba byiza kuruta ibindi bidasanzwe. Urugero, ibikombe bihendutse bya ceramic bifite glaze za kaolin zumva ari byiza cyane mu ntoki, bifite ubuso bworoshye burwanya gushwanyagurika kw'ibikoresho kandi bigakomeza kuba byiza mu gihe cy'imyaka myinshi.

Ibikoresho by'isuku—harimo amasafuriya, ubwiherero, ubwogero n'aho kwiyuhagirira—bishingira cyane ku mabaraza yongereweho kaolini kugira ngo haboneke irangi ryiza kandi risukuye rihuye n'amahame akomeye yo gukoreshwa mu ngo no mu bucuruzi. Isuku ni ingenzi cyane muri ubu buryo, kandi irangi ryiza rya kaolini rituma ubuso butagira imyenge, butoshye kandi burwanya umwanda, umwanda n'ubwirunde bwa bagiteri. Bitandukanye n'ubuso bufite imyenge cyangwa butoshye bufata bagiteri (bigatera imyuka n'ibihumyo), irangi ryiza rya kaolini rituma amazi atemba, rigatwara umwanda. Ibi bituma isuku yihuta kandi ikora neza: amasafuriya yo mu bwiherero afite irangi rya kaolini ashobora guhanagurwa n'igitambaro gitose, bigatuma hadakenerwa ko yoza cyane cyangwa isuku ya shimi. Amasafuriya afite irangi ryiza rya kaolini arwanya ibura ry'isabune, ikibazo gikunze kugaragara mu bwiherero, kuko ubuso bwiza bubuza ibisigazwa by'isabune gufatana. Ku bibanza by'ubucuruzi nka hoteli cyangwa ubwiherero rusange—aho abantu benshi bahurira n'abantu benshi kandi bagasukura kenshi ari byo bisanzwe—kuramba kwa kaolini ni ingenzi: igumana imiterere myiza kandi isuku ndetse no nyuma yo guhura n'imiti isukura buri munsi no kuyikoresha cyane. Abakora ibikoresho by'isuku nabo baha agaciro ubushobozi bwa kaolin bwo gukora irangi ringana ku buso bunini kandi bugoye: imbere mu bwogero, bufite imiterere yabwo igoramye n'ingano nini, bisaba irangi ritemba neza kugira ngo hirindwe utudomo duto dukurura umwanda. Imiterere ya Kaolin yo guhindura amazi ituma habaho urumuri ruhoraho kuva hejuru kugeza hasi mu bwogero, bigatuma habaho ubwumvikane. Byongeye kandi, irangi ribengerana riva muri kaolin ryongera ibara mu bikoresho by'isuku by'umweru - ibipimo ngenderwaho mu nganda kugira ngo umuntu arebe isuku. Kaolin irinda irangi ryera guhindagurika cyangwa kudahinduka umuhondo uko igihe kigenda gihita, bigatuma amasafuriya n'ubwiherero bisa neza kandi bishya mu myaka ibarirwa muri za mirongo, ndetse no mu bice by'amazi akomeye aho amabuye y'agaciro ashobora guhindura irangi rito.

Ibumba ry'imitako—rikubiyemo amasafuriya, amatafari yo ku nkuta, amashusho, ibyapa by'ubuhanzi n'imiterere y'ubwubatsi—rikoresha ifu ya kaolin mu birahuri kugira ngo rigere ku bwiza butangaje kandi buhamye butuma ubuhanzi burushaho gukurura n'agaciro ku isoko. Abahanzi n'abakora ibumba ryishingikiriza ku bushobozi bwa kaolin bwo gukora ubuso bworoshye kandi bugaragaza urumuri bunoze ubuhanga butandukanye bwo gushushanya, kuva ku gushushanya no gushushanya intoki kugeza ku mashusho no gushushanya mu kirere. Ibumba ryigishijwe irangi n'intoki ni urugero rwiza: ibumba ryigishijwe irangi rya kaolin ritanga ibara ryoroheje rituma abahanzi bashobora gushyiramo irangi ryoroheje kandi risobanutse neza, kandi irangi ryimbitse ryongera ubushyuhe bw'amabara. Imiterere y'indabyo ifite amabara yoroheje isa n'aho yoroshye, mu gihe imiterere y'inyuma irushaho kwiyongera uko urumuri rugaragaza ubuso bw'irangi, rugaragaza itandukaniro riri hagati y'amabara. Imiterere y'ibumba—imitako y'ibumba izamuka iva ku buso bw'ibumba—yungukira ku kirahuri cya kaolin kugira ngo irusheho gushimangira imiterere: ibishushanyo by'indabyo biri hejuru ku birahuri bitanga igicucu gito ku mpande zigaragaza urumuri, bigatuma ibisobanuro birushaho kugaragara kandi bikagira imiterere itatu. Amatafari yo ku nkuta akoreshwa nk'imitako mu gikoni, mu bwiherero cyangwa mu byumba byo kubamo yishingikiriza ku kirahuri cya kaolin kugira ngo akore ingaruka nziza ku buryo bugaragara. Ibikoresho binini (nk'ibirahuri byo mu gikoni cyangwa ubwiherero bifite inkuta) bisaba amatafari afite urwego rumwe rw'urumuri kugira ngo hirindwe ahantu hatandukanye habangamira imiterere; kaolin ituma buri tafari igira ubushobozi bwo kugaragara neza, ndetse no mu byiciro bitandukanye by'umusaruro. Ubu buryo ni ingenzi ku birango by'amatafari meza bitanga imishinga yo gushushanya imbere mu nzu. Ibishushanyo bito—byaba imiterere y'abantu bakusanyije, ibishushanyo by'inyamaswa cyangwa ibikoresho by'idini—bikoresha ubwiza bwa kaolin kugira ngo byongeremo utuntu duto: imiterere yo mu maso nk'amaso n'inseko isa n'aho igaragara cyane, mu gihe imyenda cyangwa imiterere y'ubwoya irushaho kuba miremire. Studio z'ubukorikori zikoresha glaze za kaolin nyinshi ku bice bidasanzwe, kuko ubwiza buhindura imiterere y'ibumba yoroshye mo ibihangano byiza bihenda cyane. Ndetse n'ibikoresho by'imitako bikozwe mu bwinshi nk'ibikoresho by'amatafari bya kaolin cyangwa inkono z'ibimera bigira inyungu ku bwiza bwa kaolin, kuko byongera isura yabyo kuva ku bisanzwe bikajya ku isura nziza, bigatuma birushaho gukurura abaguzi bashaka kunoza imitako yo mu rugo.