Siv tau cov txheej ntawm cov xim muaj hlau CMC

Siv tau cov txheej ntawm cov xim muaj hlau CMC
Sodium carboxymethyl cellulose mus tau lug ua ntawv thov cov ntawv xim coated thiab tswj, xws li bar txheej, huab cua riam txheej, txheej hniav, zaj duab xis txheej los like txheej metering cov khoom xyaw. CMC tug tswj, kev cai txheej rheology, dej nyob tus, lub lag luam txheej ntawm txoj hauj lwm thiab raws li lwm txhawb lub luag hauj lwm, lwm yam tseem ceeb heev.
Ib, CMC los nyob rau hauv cov xim txheej ntawm nws qhov kev siv:
1, lug txhim khu cov stability ntawm txheej;
2, tswj xim tuav dej;
3, kho cov cov viscosity ntawm tus txheej;
4, ntshav nplaum efficiency, CMC xwb yog ib cov ntawv;
5, ib dispersant, ib tug dispersion zoo, ib tis ntau yam txog cov txheej;
6, brighteners muaj, kho qhov muag brighteners muaj ib feem kev kub ceev;
7, roj nplua nyeem scraper.
Stability
Tom qab koj siv nws kim heev ntawm ib tug hniav coater, cov coater ua tau lub tsheb ceev, stability thiab runnability yuav tsum xim muaj hlau los si, CMC yuav tau txhim kho lub tshuaj thiab txhua yam stability, uas ob qho yuav cuam tshuam ntawm qhov teeb meem no txheej tshuab.
Dej cia
Xim dej cia feem ntau yog hais txog ib txheej thov daim ntawv uas muaj peev xwm ua kom muaj dej dawb tsis khiav tawm mus. Xim dej cia yog ib tug tseem ceeb heev qhov zus tau tej cov zoo ntawv coated thiab paperboard, yog tus yuam sij rau kev txhim kho lub efficiency thiab zoo tshaj ntawm lub txheej. Ntawv yog ib yam khoom siv rau muaj txoj, kom tus ntawv yuav nqus tau tej dej uas teev ntawm cov nplaum txheej muaj solubility, dua dej cia xim, tseem tsawg rau muaj txoj ntawv, migration nplaum tsawg: yog ntau dhau dej nyob qis, yuav muaj hauv cov teeb meem: tus txheej ib txoj kab, nplaum migration, xim phem rheology tswj, ua tus zaus ntawm qhov so ntawv.
Rheological zog
Txheej muaj CMC pseudoplastic (shear thinning), uas yog tsim rau txheej hniav high-speed yuav tsum hais no, muaj kwm dej cia rau hauv lub tshuab txheej uas muaj kev kawm zoo. Thiab tus rheology ntawm looj yog feem ntau tsis cuam tshuam dab tsi tus zoo thiab tus nqi ntawm cov kev kawm. Thaum lub CMC ntau thiab tus nqi ntawm qhov kev hloov uas yuav tiv thaiv thiab kho cov viscosity ntawm cov xim muaj hlau.
Ob tug, CMC sawv cov xim coated
1, ua lub zog ntawm cov ntawv, zoo kuj coj ntawm daim ntawv, txo kev ntsuam linting ntawm txoj kev luam ntawv;
tus neeg saib xyuas 2, tiv sizing (rosin, AKD, etc.), uas rau sizing tus neeg saib xyuas yuav tau uniformly heev thiab zoo muab theej thiab faib rau fiber ntau;
3, muaj cov nyhuv uas tuav tus neeg saib xyuas, thiab cov fibers thiab cov fillers muaj affinity sis;
4, los ua kom cov pa permeability ntawm cov ntawv thiab cov tswj lub curl;
5, kom brightness thiab gloss ntawv;
6, kom tuav ntawm cov roj thiab number case.