Tom qab cov xim xim ntawm cov xim dawb masterbatch sib xyaw cov xov paj tau txiav txim siab, cov xim dawb masterbatch sib npaug sib npaug hauv cov khoom siv polypropylene ua ntej spinning, uas yog tus yuam sij kom paub meej cov khoom zoo. Muaj ob txoj hauv kev tshwj xeeb hybrid. Ib qho yog txoj kev gravimetric thiab txoj kev volumetric. Tom qab cov dawb masterbatch yog yaj nyob rau hauv nruab nrab los yog rear ntawm lub extruder, nws yog txhaj rau hauv polypropylene yaj nrog ib tug me me extruder nrog zoo uniformity.
Thib ob, txhawm rau txo cov xim fiber ntau sib txawv tom qab xim sib xws, cov masterbatch dawb yuav tsum tau diluted thiab qhov sib tov sib xyaw yuav tsum tau tswj. Filament yuav tsum tsis pub tsawg tshaj 3 feem pua ~ 10 feem pua, thiab staple fiber yuav tsum tsis txhob tsawg tshaj li 1 feem pua ~ 3 feem pua. Monochromatic nthuav dav filaments yuav tsum tau spun los ntawm ib qho khoom siv peb-xim. Cov dawb masterbatch yuav tsum tau pub rau hauv lub extruder tom qab sib tov. Nyob rau tib lub sijhawm, txhawm rau txhim kho lub peev xwm sib xyaw ntawm cov yaj nws tus kheej, cov cuab yeej sib xyaw tuaj yeem muab ntxiv rau qhov extruder.
Thib peb, xaiv dawb masterbatch raws li kev xaiv ntau yam. Polypropylene masterbatch tuaj yeem muab faib ua qib zoo denier thiab ntxhib denier qib. Lub coarse denier dawb masterbatch xim tsis tuaj yeem siv rau kev sib xyaw xim zoo nkauj. Thaum sib piv cov xim, tus naj npawb ntawm spinning fiber monofilaments yuav tsum tau txiav txim siab, thiab tib qib ntawm cov dawb masterbatch yuav tsum raug xaiv.
Cov dawb masterbatch xaiv plaub yog cov khoom ntawm tib lub chaw tsim khoom, thiab high-concentration dawb masterbatch yuav tsum tau xaiv los txo cov nqi. Cov xim ntawm cov masterbatches dawb tuaj yeem muab faib ua qib siab, nruab nrab thiab qis. Thaum sib piv cov xim, cov qib sib txawv ntawm cov masterbatches dawb yuav tsum raug xaiv kom tsim nyog raws li qhov xav tau ntawm cov fiber ntau. Txhawm rau kom tsis txhob muaj qhov hloov pauv zoo ntawm cov tiav fiber ntau vim qhov sib txawv ntawm lub teeb ruaj khov thiab thermal stability ntawm cov xim, cov xim sib xws yuav tsum xaiv cov xim dawb masterbatch nrog tib lub teeb ruaj khov thiab kub tsis kam thiab ua tau raws li cov kev xav tau ntawm fiber ntau. . Qhov concentration ntawm crude fiber yog qis dua li cov fiber ntau zoo, thiab tus nqi ntawm cov dawb masterbatch yog proportional rau lub hauv paus square ntawm lub denier tooj ntawm fiber.
