Polyester chips(polyethylene terephthalate) yog polymerized los ntawm refined terephthalic acid (PTA) thiab ethylene glycol.Cov tsos yog nplej granular, thiab muaj ntau ntau yam (tag nrho lub teeb, ib nrab lub teeb, loj teeb, cationic, no extinction).
Hauv kev lag luam hais txog polyester chips, koj feem ntau pom cov lus "lub teeb zoo", "semi-extinction" thiab "light", uas tau hais ntawm no rau titanium dioxide (TiO2) cov ntsiab lus hauv polyester chips, ntxiv titanium dioxide (TiO2) nyob rau hauv lub yaj yog txo cov luster ntawm fiber."Lub teeb zoo" (Yizheng chemical fiber tseem hu ua "super light") cov ntsiab lus ntawm titanium dioxide hauv polyester chips yog xoom;Cov ntsiab lus ntawm titanium dioxide nyob rau hauv "ci" polyester hlais yog hais txog 0.1%;Cov ntsiab lus ntawm titanium dioxide nyob rau hauv "semi-dull" polyester nti yog (0.32 ± 0.03)%;Cov ntsiab lus titanium dioxide nyob rau hauv "tag nrho extinction" polyester nti yog 2.4% mus rau 2.5%.
Nrog rau kev loj hlob ntawm kev lag luam thoob ntiaj teb thiab kev txhim kho ntawm tib neeg txoj kev ua neej nyob, kev lag luam textile thiab tsoos tsho tau tsim sai heev.Semi-dull polyester nti tau siv dav rau nws cov dyeability zoo heev, lub zog siab thiab ua haujlwm zoo, thiab daim ntawv thov daim teb yuav nthuav dav txhua hnub, thiab dhau los ua cov ntaub ntawv tseem ceeb rau textile fiber, polyester muaj zaj duab xis, thiab lwm yam.
Raws li kev siv cov hlais tuaj yeem muab faib ua fiber ntau qib polyester daim, lub raj mis qib polyester hlais thiab zaj duab xis qib polyester hlais peb pawg.
Fiber qib polyester chips yog siv los tsim polyester staple fiber ntau thiab polyester filament, uas yog raw cov ntaub ntawv rau kev ua fibers thiab lwm yam khoom ntawm polyester fiber qhauj.Lub raj mis qib polyester chips tau muab faib ua ob pawg ntawm copolymerization thiab homopolization, uas tuaj yeem muab faib ua cov dej ntxhia dej, lub raj mis carbonated haus, lwm cov ntim khoom noj thiab cov khoom ntim raws li kev siv sib txawv.Txij li thaum lub advent ntawm polyester zaj duab xis nyob rau hauv 1950s, vim hais tias ntawm nws cov zoo heev mechanical zog, tshuaj tiv thaiv thiab dimension stability, raws li ib tug hluav taws xob rwb thaiv tsev zaj duab xis tau tsim sai heev thiab dav siv.Nrog rau txoj kev loj hlob ntawm kev lag luam hauv tsev, kev siv cov yeeb yaj kiab polyester tuab tau nce sai heev.Nyob rau hauv xyoo tas los no, polyester zaj duab xis tau siv dav hauv cov khoom ntim, cov ntaub ntawv luam tawm, cov khoom siv hauv tsev, cov ntaub ntawv hauv chaw ua haujlwm, cov khoom siv hlau nplaum thiab cov khoom siv yees duab thiab lwm yam kev siv pej xeem, nrog rau kev txiav thiab kev ua haujlwm siab.
Tam sim no, cov tuam txhab polyester loj yog ib-kauj ruam ntau lawm, PTA thiab MEG polymerization tsis tsim cov hlais, tab sis tshem tawm qhov nruab nrab txuas ncaj qha tsim cov staple fiber ntau thiab filament.Lub semi-extinction nyob rau hauv daim ntawv nyiaj rau 60%, tab sis cov hlais spinning tsis muaj kev lag luam, tsis muaj kev sib tw, thiab kev ua lag luam yog pob tshab.Kev tsim cov dej ntxhia thiab lwm yam dej haus fwj nrog cov hlais, cov khoom siv tam sim no tau dhau lawm, qhov zoo ntawm cov tuam ntxhab tsis sib xws.Ib tuj ntawm polyester tuaj yeem ua tau ntau dua 33,000 lub raj mis.Tsis tas li ntawd, cov ntawv siv rov ua dua tshiab, uas yog, cov hnab yas pov tseg tau rov ua dua tshiab los tsim cov khoom siv fiber ntau, tus nqi qis, tus nqi qis, thiab ntxuav ib puag ncig.Tab sis kev smuggling yog qhov hnyav heev, txhawj xeeb tias ib zaug teev tseg yav tom ntej yuav cuam tshuam kev lag luam kev txiav txim.