Dab tsi yog qhov txawv ntawm cov cwj mem dej, cov cwj mem dej thiab cov cwj mem dej-soluble thiab cov cwj mem roj?
Dej cwj mem: Qhov no yog lub npe nrov ntawm cov pej xeem. Qee tus neeg hu ua tus cwj mem dej kos npe, qee tus neeg hu ua roj-raws li cwj mem dej, thiab qee tus neeg hu ua tus cwj mem dej. Txawm li cas los xij, cov neeg uas muaj tus cwj mem siv los hu nws tus cwj mem dej, yog li lub npe zoo li no tsis muaj dab tsi. Professional reference.
Cia peb pib nrog qeb ntawm cov cim / cov cim los sau cov ntsiab lus.
Dej-raws li cwj mem: Cov khoom xyaw tseem ceeb yog dej thiab dej-resistant pigments. Nws yuav tsis yaj los yog smudge thaum raug dej. Feem ntau, kos duab kos duab thiab kos duab kab yog siv rau ntau lub hom phiaj. Nws yog tus cwj pwm los ntawm tsis muaj smudging ntawm daim ntawv thiab tsis muaj ntxhiab tsw. Nws sawv cev rau cov khoom xws li cherry blossom water-based koob. Cwj mem, Mitsubishi's water-based marker cwj mem. tuaj yeem tshem tawm nrog cov kuab tshuaj organic;
Dej-soluble cwj mem: Cov khoom tseem ceeb yog dej, dyes thiab resins. Feem ntau siv rau kev lag luam cim, tus number case yog hydrophilic thiab yuav yaj nyob rau hauv muaj dej. Hauv cov txheej txheem kev lag luam dav dav, cov cim yuav tsum tau muab tshem tawm tau yooj yim, yog li xaiv cov cwj mem dej-soluble. Marker cwj mem, yog li nws tseem hu ua ntub lwv cwj mem. (Whiteboard cwj mem feem ntau hu ua qhuav lwv cwj mem);
Roj-raws li cwjmem: feem ntau yog organic solvent formulations, xws li cawv (xws li ethanol), ketones (xws li acetone), benzenes (xws li xylene. Cov cwj mem no feem ntau yog siv rau kev lag luam cim, muaj ntxhiab tsw loj, cov kuab tshuaj sib txawv. Kev sau ntawv ruaj khov, tsis hnov tsw thiab ua kom qhuav sai ntawm cov mis yog txawv, cov yam ntxwv yog tias tus number case yog waterproof, ruaj thiab tsis yooj yim rau ploj, thiab xim yog ci, tab sis cov ntawv sau yuav smudged.
