Cov txheej txheem ntau lawm ntawm Masterbatches

Cov txheej txheem ntau lawm ntawm masterbatches yog nruj heev, thiab cov txheej txheem ntub dej feem ntau tau txais. Masterbatch cov ntaub ntawv yog tsim los ntawm aqueous theem sib tsoo, theem tig, ntxuav, ziab thiab granulation, tsuas yog nyob rau hauv no txoj kev yuav khoom zoo guaranteed.
Tsis tas li ntawd, thaum sib tsoo cov xim, yuav tsum tau ua ntau yam kev ntsuam xyuas, xws li kev txiav txim siab qhov zoo ntawm cov tshuaj khib nyiab slurry, txiav txim siab qhov kev ua tau zoo ntawm cov tshuaj khib nyiab slurry, txiav txim siab cov ntsiab lus ntawm cov mortar slurry thiab ntsuas qhov fineness ntawm cov mortar slurry. xim muab tshuaj txhuam.
Muaj plaub txoj kev ntawm masterbatch ntau lawm:
(1) Ink method: Raws li lub npe implies, nws yog ib tug ntau lawm txoj kev ntawm number case muab tshuaj txhuam nyob rau hauv zus tau tej cov masterbatches, uas yog, los ntawm peb-cov menyuam sib tsoo, ib tug tsawg-molecular tiv thaiv txheej yog coated rau saum npoo ntawm cov xim. Cov xim pleev xim zoo nkauj tom qab sib tsoo yog tom qab sib xyaw nrog cov khoom thauj khoom, tom qab ntawd yas los ntawm ob-yob yas zeb (tseem hu ua ob-yob zeb), thiab thaum kawg granulated los ntawm ib tus ntsia hlau los yog ntxaib ntsia hlau extruder.
Cov txheej txheem yog raws li nram no:
Cov khoom xyaw: nplawm, coarse xim muab tshuaj, peb-cov menyuam sib tsoo, zoo xim muab tshuaj, ob-cov menyuam yas refining, extrusion thiab granulation
(2) Txoj kev rinsing: cov xim, dej thiab dispersant yog sanded kom cov pigment particles tsawg tshaj li 1μm, thiab los ntawm cov theem hloov txoj kev, cov xim yog pauv mus rau theem roj, thiab ces qhuav kom tau masterbatches. Cov kuab tshuaj organic yuav tsum tau rau theem hloov dua siab tshiab, nrog rau cov khoom siv hnyav rov qab. Lub flow yog raws li nram no:
Fine xim muab tshuaj yaug, evaporation concentrate kom qhuav, ntxiv cov cab kuj extrusion granulation
(3) Kneading raws cai: Tom qab sib tov cov xim thiab cov roj-raws li cov cab kuj, cov xim yog flushed los ntawm aqueous theem mus rau theem roj los ntawm kneading. Nyob rau tib lub sijhawm, lub ntsej muag ntawm cov xim yog coated los ntawm cov roj-raws li cov cab kuj kom stabilize cov xim dispersion thiab tiv thaiv cov xim ntawm agglomeration.
(4) Hlau xab npum txoj kev: yog cov xim tom qab sib tsoo particle loj li ntawm 1μm, thiab nyob rau hauv ib tug tej yam kub rau ntxiv xab npum kua, kom lub nto txheej ntawm txhua pigment particle yog tusyees wetted los ntawm xab npum kua, ua ib txheej ntawm saponification. kua, thaum cov hlau ntsev tov ntxiv thiab cov saponification txheej nyob rau saum npoo ntawm cov tshuaj tiv thaiv pigment los tsim ib tug tiv thaiv txheej ntawm hlau xab npum (magnesium stearate), thiaj li hais tias cov finely av pigment hais yuav tsis ua flocculation, tab sis tiv thaiv ib tug tej yam. kev zoo.