Aluminium sulfate, ine kemikari formula Al2(SO4)3, inozivikanwawo sealum, isanganiswa inonyungudika nemvura inoita basa rakakosha mukugadzira machira nekuda kwezvakasiyana siyana uye kuumbwa kwemakemikari. Imwe yemashandisirwo ayo ekutanga ndeyekudhaya uye kudhindwa kwemachira. Aluminium sulfate inoshanda se mordant, iyo inobatsira mukugadzirisa dhayi kumafibhi, nekudaro ichiwedzera kukurumidza kwemavara uye nekuvandudza huwandu hwese hwejira rakadhayiwa. Nekugadzira insoluble complexes nedhayi, alum inochengetedza kuchengetwa kwavo pamucheka, kudzivirira kubuda ropa uye kupera panguva yekugezwa kunotevera.
Uyezve, aruminiyamu sulfate inoshandiswa mukugadzira mamwe marudzi edhayi dzakaoma, seTurkey mafuta matsvuku. Aya madhayi, anozivikanwa nekusimba uye anogara kwenguva refu, anoshandiswa zvakanyanya muindasitiri yemachira pakudhaya donje uye mamwe mafizi chaiwo. Kuwedzerwa kwealum kune yekugezesa dhayi kunofambisa kusungirirwa kwemamorekuru edhayi kumucheka, zvichikonzera ruvara rweyunifomu uye nekunatsiridza kukurumidza kushambidzika.
Pamusoro pebasa rayo mukudhaya, aluminium sulfate inowana kushandiswa mukuyera machira, maitiro ane chinangwa chekusimudzira simba, kutsvedzerera, uye kubata zvimiro zveshinda nemachira. Sizing agents, kazhinji anoumbwa nestarch kana synthetic polymers, anoiswa pamusoro peshinda kuderedza kukwenya uye kutsemuka panguva yekuruka kana kurukwa. Aluminium sulfate inoshandiswa se coagulant mukugadzirira kwe starch-based sizeng formulations. Nekusimudzira kuunganidzwa kwezvimedu zve starch, alum inobatsira mukuwana yunifomu saizi yekumisikidza pajira, zvichitungamira mukuvandudzika kwekuruka uye kunaka kwemachira.
Pamusoro pezvo, aluminium sulfate inoshandiswa mukukwesha uye kugadzira machira, kunyanya machira edonje. Scouring inzira yekubvisa tsvina, senge wax, pectins, nemafuta echisikigo, kubva pamucheka wejira kufambisa zvirinani kupinda kwedhayi uye kunamatira. Aluminium sulfate, pamwe chete nealkalis kana surfactants, inobatsira mukumisa nekuparadzira tsvina iyi, zvichiita kuti ichene uye iwedzere kunyura fiber. Saizvozvo, mukugadzira, alum inobatsira mukuparara kweiyo starch-based sizing agents inoiswa panguva yekugadzira shinda, nekudaro kugadzirira jira rekuzozodhaya kana kupedza marapiro.
Pamusoro pezvo, aluminium sulfate inoshanda se coagulant mumarara ekurapa maitiro mukati mekugadzira machira. Iyo tsvina inogadzirwa kubva kwakasiyana siyana mashandiro emachira kazhinji ine yakamiswa marara, machira, uye zvimwe zvinosvibisa, zvichiunza matambudziko ezvakatipoteredza kana akadzingwa asina kurapwa. Nekuwedzera alum kumvura yetsvina, zvimedu zvakaturikwa zvinodzikiswa uye zvakabatanidzwa, zvichiita kuti kubviswa kwavo kuburikidza nesedimentation kana kusefa. Izvi zvinobatsira mukuzadzisa kutevedzera zviyero uye kuderedza kukanganiswa kwezvakatipoteredza kwezviitiko zvekugadzira machira.
Mukupedzisa, aluminium sulfate inobata basa rakasiyana-siyana muindasitiri yemachira, ichibatsira mukudhaya, saizi, kukwesha, kudhiza, uye nzira dzekuchenesa mvura. Kushanda kwayo senge mordant, coagulant, uye kugadzirisa rubatsiro kunosimbisa kukosha kwayo mumabasa ekugadzira machira.
Nguva yekutumira: Kubvumbi-26-2024