1. *** Dab tsi yog cov ntaub ntawv nyoos ntawm niaj hnub papermaking? ***
A: Cov ntawv sau niaj hnub siv ntau yam khoom siv raw, xws li cov ntoo, cov pob zeb, xalsicties (og Tam sim no, sau ntawv, luam ntawv, thiab ntim ntaub ntawv ntim khoom tseem ceeb rau cov nroj tsuag uas yog cov khoom siv thawj.
2. *** Cov ntsiab lus ntawm papermaking muaj fiber ntau cov ntaub ntawv? ***
A: Cog cov ntaub ntawv raw rau daim ntawv kev lag luam tuaj yeem faib ua ob pawg tseem ceeb:
- ** Wood Fiber Raw Khoom **: Faib ncaj qha tawm los ntawm cov ntoo.
- ** Cov ntaub ntawv tsis muaj roj rau **: Cov no suav nrog Nyom Fibers, Cov Khoom Siv Cuam Tshuam Cov Khaub Ncaws, thiab cov noob plaub hau.
3. *** Dab tsi yog cov muaj pes tsawg leeg thiab ua haujlwm ntawm cov ntawv sau ntxiv? ***
A: Cov ntxiv hauv ntawv ntau lawm xa mus rau ntau tus neeg saib xyuas cov khoom siv los txhim kho cov ntawv sau cov khoom tshwj xeeb. Cov no suav nrog cov sau ua haujlwm, khi, dyes, thiab lwm yam tshuaj sib ntxiv. Fillers txhim kho daim ntawv smoothness thiab opacity; binders txhim kho dej tsis kam; dyes nce ntawv dawb; Thiab lwm yam tshuaj nyias ntxiv hloov cov ntawv cim rau cov ntawv thov tshwj xeeb.
4. *** Lub luag haujlwm ntawm cov roj hmab hauv cov ntawv ntau lawm? ***
A: Daim ntawv ua los ntawm cov ntoo cog muaj ntau cov cortry thiab hydrophilic hydroxyl nyob rau hauv cellulose, ua kom nws nqus dej lossis lwm yam kua. Txhawm rau tiv thaiv kua infiltration, hydrophobic colloidal lossis zaj duab xis-tsim cov tshuaj, xws li cov ntaub ntawv roj hmab, ntxiv rau txheej txheem cov txheej txheem sizing. Qhov no ua kom cov ntaub ntawv tiv thaiv mus ua kua nkag thiab diffusion.
5. *** Cov hau kev ntawm sizing hauv cov ntawv lag luam? ***
A: Sizing cov hau kev tau faib raws lawv cov teebmeem rau hauv sab hauv sizing thiab nto sizing. Sab hauv sizing yuav ntxiv hydrophobic tshuaj rau lub sam thiaj ua ntej daim ntawv tsim, feem ntau yog siv cov roj hmab lossis hluavtaws cov roj hmab cov ntaub ntawv. Deg sizing siv ib txheej txheej nplaum ntawm cov ntawv nplaum rau ntawm daim ntawv saum npoo av, feem ntau siv cov hmoov txhuv nplej siab, lossis cov khoom siv roj hmab. Nto sizing yog feem ntau tau thov rau daim ntawv sau ua haujlwm, sau ntawv, thiab qhwv cov ntawv sau ua kua-pleev xim rau cov khoom noj.
6. *** Qhov cuam tshuam dab tsi ntawm qhov chaw sizing ntawm cov luam ntawv kev kawm? ***
A: ① Ua rau cov dej tsis kam thiab nto lub zog ntawm daim ntawv, txo cov fiber ntau thaum lub sijhawm tsis luam ntawv;
② Ua rau txhim kho cov tshuab sib npaug los ntawm kev sib npaug hauv kev nqus dej-ntau dhau los tuaj yeem ua kom ntub dej, thaum tsis txaus cov txiaj ntsig hauv kev xav tsis txaus;
③ Pab txhim kho erasability los ntawm kev txo qis hauv qhov chaw nkag, txhim kho daim ntawv anti-franti-txhuam cov khoom;
④ Npaj rau cov ntawv cov khoom siv neeg kho tshuab, xws li kua muag tsis kam, quav tiv taus, thiab lub zog tensile;
Recuces txo cov ntawv curling thiab deformation.
7. *** Lub luag haujlwm ntawm Taters hauv ntawv ntau lawm? ***
A: Fitters tau ntxiv rau impart cov khoom tshwj xeeb rau ntawv, xws li whiteness, opacity, thiab smoress. Lawv kuj txo qis voids, txhim kho ink nqus cov kev sib haum xeeb. Feem ntau siv insoluble lossis me ntsis soluble cov zaub mov muaj kwv yees li 10% -25% ntawm cov ntawv luam ntawv nyob ntawm cov ntawv.
8. *** Dab tsi yog tus yam ntxwv yuav tsum luam ntawv daim ntawv sau ua ke? ***
A: Sau cov ntawv sau ua ke yuav tsum tau ua kom pom kev zoo zoo, cov dej siab ua haujlwm loj, qis solubility, tsis muaj zog me, thiab tshuaj lom neeg kom zoo. Tsis tas li ntawd, lawv yuav tsum muaj ntau yam nyob rau hauv cov peev txheej thiab raug nqi.
9. *** Dab tsi yog cov neeg siv ua ke rau luam ntawv? ***
A: Feem ntau cov neeg siv hluav taws xob nquag siv suav nrog Talc, av nplaum, Titanium Dioxide, thiab calcium carbonate. Titanium Dioxide yog ib tug kim tab sis high-zoo muab tub lim, thaum cov khoom siv hluav taws xob organic muaj cov tshuaj pleev cov tshuaj.
10. *** Dab tsi yog qhov cuam tshuam ntawm kev sau ua ke ntawm kev ua tau zoo ntawm cov ntawv luam tawm? ***
A: Ntxiv cov foob rau luam ntawv txhim kho nws cov ntawv luam tawm los ntawm kev txhim kho kev ntxuav dawb, opacity, thiab txhav. Nws kuj tseem txhim kho cov ntawv affinity, mos muag, thiab muaj kev ruaj khov nrog cov number case, pab txhawb kom zoo dua luam tawm zoo. Txawm li cas los xij, kev muab ua haujlwm ntau dhau yuav tsis muaj zog ntawm daim ntawv, txo cov teeb meem zoo li hmoov, thiab phaj kom paug rau thaum lub tshuab luam ntawv. Siv cov calcium carbonate (PCC) raws li ib tug muab tub lim minimizes phaj hnav.