Polyester filament yakhala yofunika kwambiri pamakampani opanga nsalu kwazaka zambiri. Posachedwapa, mitundu yatsopano ya polyester filament yapangidwa, yomwe imadziwika kutikuwala koyera poliyesitala trilobal zooneka filament. Filament yatsopanoyi ikupanga chidwi kwambiri pakati pa opanga ndi ogula.
Ulusi wowoneka bwino wa polyester trilobal umapangidwa kuchokera ku mtundu wa poliyesitala womwe udapangidwa mwapadera kuti upangitse mulingo wapadera wowala komanso wowala. Mawu akuti "trilobal" amatanthauza gawo limodzi la katatu la ulusi uliwonse mu ulusiwo. Kapangidwe kameneka kamapangitsa kuwala kuwonetsa mbali iliyonse ya ulusi, kupanga kuwala kowala. Mtundu wonyezimira, woyera wa ulusiwo ndi wochititsa chidwi kwambiri, chifukwa umawonjezera mawonekedwe a mawonekedwe a trilobal.
Ubwino umodzi waukulu wa kuwala koyera poliyesitala trilobal zooneka ngati ulusi ndi kusinthasintha kwake. Itha kugwiritsidwa ntchito munsalu zambiri, kuphatikiza zovala zamasewera, zosambira, ndi zida zapanyumba. Kulimba kwa ulusi, kulimba, ndi kukana makwinya kumatanthauza kuti imatha kupirira kutha kwambiri. Kuonjezera apo, kuwala kwa ulusiwo kungapangitse ngakhale nsalu yosaoneka bwino kwambiri kuti iwoneke yamphamvu komanso yowoneka bwino.
Ubwino wina wakuwala koyera poliyesitala trilobal zooneka filamentndi kukhazikika kwake. Mosiyana ndi zida zina zomwe zimagwiritsidwa ntchito popanga nsalu, poliyesitala sichitha kuwonongeka. Komabe, chithandizo chatsopano chomwe chimagwiritsidwa ntchito popanga ulusiwo chimapangitsa kuti chikhale chogwirizana kwambiri ndi chilengedwe. Njirayi imagwiritsa ntchito madzi ndi mphamvu zochepa kusiyana ndi kupanga polyester yachikhalidwe, ndipo imapanga zowonongeka pang'ono.
Opanga ndi ogula ali okondwa ndi mwayi watsopano woperekedwa ndi ulusi wowoneka bwino wa polyester trilobal. Okonza akuyesa ulusi watsopanowu kuti apange zinthu zatsopano komanso zongoganiza. Zovala zopangidwa kuchokera ku filament zimatengera chidwi ndipo zimatha kukhala gawo lazovala.
Pomaliza, akuwala koyera poliyesitala trilobal zooneka filamentndi chitukuko chosangalatsa mumakampani opanga nsalu. Makhalidwe ake apadera amapereka malire pa mitundu ina ya filament, ndipo kusinthasintha kwake kumapangitsa kuti ikhale yoyenera pazinthu zambiri. Ndi kukhazikika kwake, ndizotheka kukhala chisankho chodziwika bwino pakati pa opanga ndi ogula.
