Kushandiswa kwehupfu hwediatomite mukugadzira mapepa kunoda kugadziriswa kwakanyatsogadzirwa zvinoenderana nezvinodiwa neindasitiri. Matombo ediatomite asina kucheneswa anogezwa zvakanaka kuti abvise tsvina yevhu nejecha. Zvadaro, anoomeswa zvinyoro nyoro patembiricha iri pakati pe100-120°C kuchengetedza chimiro chayo chakakosha chine maburi. Maitiro ekukuya anozoshandiswa kugadzira hupfu hune saizi yezvikamu zvinosiyana pakati pe5-30 μm. Zvikamu zvakapfava, zvinowanzova pakati pe5-15 μm, zvinoshandiswa semapigment ekuputira anoshanda zvakanyanya pamapepa ekudhinda ane gloss yakakwira, nepo zvimedu zvakakora (20-30 μm) zvinoshanda semafiller anoshanda mukunyora nekurongedza mapepa. Mamwe marudzi ehupfu hwediatomite anogadziriswa pamusoro ne cationic polymers kuti awedzere kuenderana ne cellulose fibers, zvichiita kuti kupararira kwakafanana mukati me pulp matrix.

Semuchina wekuzadza mapepa, upfu hwediatomite hunopfuura dzimwe nzira dzechinyakare dzakadai secalcium carbonate (CaCO₃) kana kaolin muzvinhu zvakawanda. Hunhu hwayo hwekupinza maburi hunogonesa kugona kukuru kwekupararira kwechiedza, zvichiwedzera zvakanyanya kupenya kwepepa pasina kuwedzera kwehuremu hwebasic pamwe chete. Mukugadzira bepa rekudhinda, kutsiva 10-15% yepulp yehuni nediatomite powder kunogona kuwedzera 10-15% muTAPPI opacity. Izvi zvinobvumira vagadziri vemapepa kuderedza kushandiswa kwepulp, nokudaro zvichibatsira mukuderedza kuparadzwa kwemasango uye kuchengetedza mari. Semuenzaniso, muchina wekugadzira mapepa wekuFinland wakashandisa 8% diatomite powder mukugadzirwa kwawo kweoffset printing paper, zvichikonzera kuwedzera kwekusapenya kubva pa88% kusvika pa96%, kudzikira kwe12% mukushandiswa kwepulp, uye kudzikira kwe18% mumitengo yezvinhu zvakabikwa. Pamusoro pezvo, kuchena kwakanyanya kweupfu hwediatomite (L* kukosha ≥92) kunoita kuti bepa rirambe richitaridzika zvakanaka, rakachena, izvo zvakakosha pakunyora nemifananidzo yepamusoro.

Upfu hweDiatomite hunobatawo dambudziko rakajairika rezvishandiso zvechinyakare zvekuzadza nekuwedzera simba remapepa. Maumbirwo aro ane maburi anoita kuti rikwanise kubatana zvakanaka pakati pemafiber ecellulose, richishanda se "mabhiriji" kana rabatanidzwa mu pulp. Kana richienzaniswa nepepa rakazadzwa neCaCO₃, upfu hwediatomite hunogona kuwedzera simba rekudhonza ne8-12% uye simba rekubvaruka ne10-15%. Hunhu uhwu hunokosha zvikuru pamapepa ekurongedza, ayo anofanira kugara achibatwa uye kutakurwa zvakasimba. Semuenzaniso, mugadziri wemapepa ekurongedza wekuChina akawana kuvandudzwa kwakakosha musimba rekuputika kubva pa2.5 kPa·m²/g kusvika pa3.2 kPa·m²/g nekuisa 12% diatomite powder muchimiro chayo chepepa rakakombama, zvichiita kuti bepa rikwanise kutsigira mitoro inorema pasina kukundikana.

Kudhindwa kwepoda yediatomite ndeimwe nzvimbo iyo upfu hwediatomite hunobudirira. Sepigment yekuputira, inogadzira pamusoro wakatsetseka, unoenderana neinonamira ingi uye kubereka madotsi. Mupepa risina huni rakaputirwa, rinowanzoshandiswa mumamagazini nemakatalogi, madotsi akavakirwa paupfu hwediatomite anoratidza roughness yepamusoro (Ra) ye0.5-0.8 μm, zvichienzaniswa ne1.0-1.2 μm yemadotsi akavakirwa pa kaolin. Nzvimbo iyi yakapfava inoita kuti madotsi akapinza ekudhinda, ingi iderere kubuda ropa, uye ruvara rwakawedzerwa. Kuedzwa kweindasitiri yekudhinda kunoratidza kuti bepa rakaputirwa nediatomite rinowana madotsi ekuwedzera e90-95%, zvichienzaniswa ne80-85% yemapepa echinyakare akaputirwa. Uyezve, chimiro chine maponzi cheupfu hwediatomite chinonwisa ingi yakawandisa, chinoderedza nguva yekuomesa ne20-25% uye nokudaro chinowedzera kushanda zvakanaka kweprinting press uye chinoderedza matambudziko ekugadzira.

Zvakanakira zveupfu hwediatomite mukugadzira mapepa zvakakosha. Nekuderedza zvinodiwa zvepulp, zvinoderedza kushandiswa kwesimba uye kuburitswa kwemhepo inopisa pasi pamwe nekugadzirwa kwepulp, izvo zvinosanganisira kutemwa kwematanda zvakanyanya, kutakurwa, uye kugadziriswa kwemakemikari. Mafekitori emapepa ane upfu hwediatomite hwe10% anotaura kudzikira kweCO₂ kuburitswa. Kusiyana nezvinozadza zvekugadzira zvinogona kuburitsa microplastics munzvimbo, upfu hwediatomite hunoora uye hahuna chepfu. Kurapa mvura yakasviba kunorerutswawo mumafekitori uchishandisa upfu hwediatomite, sezvo upfu hunogona kubviswa kuburikidza nekusenda uye kushandiswazve muzvigadzirwa zvepepa zvemhando yepasi, zvichideredza kugadzirwa kwemarara.

Mukushandiswa kwemapepa emhando yepamusoro, upfu hwediatomite hunoita kuti pave nemabasa akasiyana. Mumapepa ekurongedza asingapindi mafuta, anowanzo shandiswa pakudya kwekukurumidza uye zvekudya zvechikafu, chimiro chayo chine maburi chinoita kuti pave nekudzivirira mafuta, zvichipa imwe nzira yekuchengetedza machira ekugadzira akadai sepolyethylene (PE). Chikafu chekukurumidza chekuJapan chakashuma kuti chave ne40% mukudzivirira mafuta mushure mekushandura kuenda kumapepa asingapindi mafuta akagadziriswa neupfu hwediatomite, ukuwo chichichengetedza hunyoro hwepepa. Mumapepa ekupisa, anoshandiswa pamarisiti uye mazita, upfu hwediatomite hunoshanda semuchina wekupisa, huchiwedzera kunzwisiswa kwekudhinda uye kuderedza kushandiswa kwesimba, nokudaro huchiwedzera hupenyu hwemisoro yekudhinda inopisa.

Pakugadzira bepa neupfu hwediatomite, zvinhu zvakawanda zvinofanirwa kufungwa nezvazvo, zvinosanganisira kuenderana kwepH, kupararira, uye mazinga ekutakura. Upfu hweDiatomite hunoratidza kugadzikana mukati mehuwandu hwepH husina kusimba kusvika kune alkaline zvishoma (6.5-8.0) hunowanzoitwa mukugadzira mapepa emazuva ano, zvichidzivirira kuora kwefiber inokonzerwa neacid. Kupararira kwakakodzera, kunowanikwa kuburikidza nekushandisa mahydropulpers kana disperser, kwakakosha kudzivirira kuungana kweparticle, izvo zvinogona kutungamira kune zvikanganiso zvepepa zvakaita semavanga kana maburi. Matanho ekutakura anosiyana zvichienderana nekushandiswa: 5-10% yekudhinda nekunyora bepa, 10-15% yepepa rekurongedza, uye 15-20% yepepa rehunyanzvi. Kupfuura 20% kunogona kukanganisa kuchinjika kwebepa, zvichiita kuti pave nekugadzirisa musanganiswa wefiber.

Mukupedzisa, upfu hwediatomite hwakachinja indasitiri yekugadzira mapepa, zvichipa kufambira mberi kukuru mukupenya, simba, kudhindwa, uye kugara kwenguva refu. Kugona kwayo kuderedza kushandiswa kwepulp, kuderedza mitengo, uye kuwedzera mashandiro emapepa kunoiisa sechinhu chinosarudzwa kune mafekitori anogadzira zvigadzirwa zvepepa zvakasiyana-siyana. Sezvo indasitiri ichiramba ichikoshesa kutarisirwa kwezvakatipoteredza uye kunaka kwezvigadzirwa, kudiwa kwepasi rose kweupfu hwediatomite hwemhando yekugadzira mapepa kwagadzirira kukura zvakanyanya. Maitiro aya anosimbisa basa guru rezvinhu izvi mukuumba ramangwana rekugadzira mapepa anogara kwenguva refu, kutungamira hunyanzvi, uye kusangana nezvinodiwa nevatengi nemaindasitiri zvakafanana. Kubatanidzwa kweupfu hwediatomite mumaitiro ekugadzira mapepa kunomiririra danho rakakosha mukutsvaga kugadzirwa kwemapepa anoshanda zviri nani, ane hushamwari kune zvakatipoteredza, uye anoshanda zvakanyanya.