Kaolin ndi mchere wosakhala wachitsulo, womwe ndi mtundu wa dongo ndi miyala yadongo yomwe imapangidwa makamaka ndi mchere wa dongo wa gulu la Kaolinite. Chifukwa cha mawonekedwe ake oyera komanso ofewa, amadziwikanso kuti nthaka ya Baiyun. Dzina lake limatengera Gaoling Village ku Jingdezhen, Chigawo cha Jiangxi.

Kaolin yake yoyera ndi yoyera, yofewa komanso yofanana ndi Mollisol, yokhala ndi pulasitiki wabwino, yolimba moto komanso zinthu zina zakuthupi ndi zamakemikolo. Kapangidwe kake ka mchere kamakhala ndi Kaolinite, halloysite, hydromica, Illite, Montmorillonite, quartz, feldspar ndi mchere wina. Kaolin imagwiritsidwa ntchito kwambiri popanga mapepala, zinthu zadothi, ndi zinthu zotsutsa, kutsatiridwa ndi zokutira, zodzaza rabara, ma glaze a enamel, ndi zinthu zopangira simenti yoyera. Kanthu kakang'ono kamagwiritsidwa ntchito mu pulasitiki, utoto, utoto, mawilo opukutira, mapensulo, zodzoladzola za tsiku ndi tsiku, sopo, mankhwala ophera tizilombo, mankhwala, nsalu, mafuta, mankhwala, zipangizo zomangira, chitetezo cha dziko, ndi mafakitale ena.
Kaolin yakhala chinthu chofunikira kwambiri m'mafakitale ambiri monga kupanga mapepala, zoumba, rabala, uinjiniya wa mankhwala, zokutira, mankhwala, ndi chitetezo cha dziko.

Makampani opanga zinthu zoumba ndi makampani oyamba komanso ogwiritsidwa ntchito kwambiri pakugwiritsa ntchito kaolin. Mlingo wamba ndi 20% mpaka 30% ya fomula. Ntchito ya kaolin mu zinthu zoumba ndi kuyambitsa Al2O3, yomwe ndi yothandiza popanga mullite, kukonza kukhazikika kwa mankhwala ake komanso mphamvu yake youmba. Pa nthawi youmba, kaolin imawola kuti ipange mullite, ndikupanga chimango chachikulu cha mphamvu ya thupi. Izi zitha kuletsa kusintha kwa chinthucho, kukulitsa kutentha kwa moto, komanso kupatsa thupi kuyera pang'ono. Nthawi yomweyo, kaolin ili ndi pulasitiki, mgwirizano, kuyimitsidwa ndi kuthekera kolumikizana, komwe kumapangitsa dongo la porcelain ndi glaze kukhala ndi mawonekedwe abwino, zomwe zimapangitsa kuti thupi la dongo la porcelain likhale loyenera kutembenuza, kupukuta ndi kupanga. Ngati igwiritsidwa ntchito mu mawaya, imatha kuwonjezera kutenthetsa ndikuchepetsa kutayika kwa dielectric.

Zadothi sizimangokhala ndi zofunikira zokhazikika pa pulasitiki, kumatira, kuuma, mphamvu youma, kuuma, mphamvu zouma, kuuma, kukana moto, komanso kuyera kwa kaolin pambuyo poyaka moto, komanso zimakhudzanso mphamvu za mankhwala, makamaka kupezeka kwa zinthu monga chitsulo, titaniyamu, mkuwa, chromium, ndi manganese, zomwe zimachepetsa kuyera pambuyo poyaka moto ndikupanga mawanga.
Chofunika kwambiri pa kukula kwa tinthu ta kaolin nthawi zambiri chimakhala chakuti tinthu tating'onoting'ono ta kaolin timakhala tabwino kwambiri, kuti matope a porcelain akhale ndi pulasitiki wabwino komanso mphamvu youma. Komabe, pa njira zopangira zinthu zomwe zimafuna kupopera mwachangu, liwiro la grouting lofulumira, komanso liwiro la kusowa madzi m'thupi, ndikofunikira kuwonjezera kukula kwa tinthu tating'onoting'ono ta zosakaniza. Kuphatikiza apo, kusiyana kwa kristalo wa Kaolinite mu kaolin kudzakhudzanso kwambiri magwiridwe antchito aukadaulo a thupi la ceramic. Ndi kristalo wabwino, pulasitiki ndi mphamvu yolumikizira zidzakhala zochepa, kuphwanyika kouma kudzakhala kochepa, kutentha kwa sintering kudzakhala kwakukulu, ndipo kuchuluka kwa zodetsa kudzachepetsedwanso; M'malo mwake, pulasitiki yake ndi yayikulu, kuphwanyika kouma ndi kwakukulu, kutentha kwa sintering ndi kochepa, ndipo kuchuluka kwa zodetsa kofanana nako ndikokwera.