1. Tsis sib xws ink cover (patchy prints)
Screen mesh suav ntau dhau → tus cwj pwm tsis zoo
Photosensitive zaj duab xis tuab heev
Kev puas tsuaj squeegee ntug
Tsis txaus los yog tsis sib xws squeegee siab
Qhov sib txawv ntawm qhov screen thiab substrate loj heev
Ink viscosity siab dhau lawm
Uneven ink rov pub
Kev luam ntawv nrawm dhau → cov khoom tsis sib xws
Tus cwj mem me dhau ntawm qhov screen
Lub rooj luam ntawv tsis sib xws
2. Tsis zoo tus cwj mem adhesion
Ink adhesion inherently qaug zog → hloov tus cwj mem hom
Tsis ncaj ncees lawm dilution hnyav
Daim ntawv tas sij hawm
Mesh nrug loj heev
Tsis raug additive ratios
3. Kev thaiv qhov screen
Substrate shedding hmoov los yog fibers
Oversized pigment hais nyob rau hauv number case
Cov kuab tshuaj evaporating sai heev (siab temp) los yog number case thickening (tsawg temp)
Plua plav rau ntawm phaj tom qab khaws cia
Qhov screen qhov sib txawv me me dhau → phaj sticks rau substrate
Dab dluab ntawm lub phaj
4. Jagged los yog burred npoo
Tsawg photosensitive kua nplaum daws teeb meem
Underexposure los yog overexposure thaum lub sij hawm ua phaj
Tsis sib xws printing nto → number case overflow
Pov thawj zaj duab xis zoo
Lub kaum sab xis tsis raug
Mesh suav tsawg dhau
5. Ink los ntshav thiab qhov muag plooj
Hnav squeegee ntug
Scraping lub kaum sab xis heev → tshaj - khoom
Ink viscosity tsawg dhau
Ink thiab hnyav tsis sib tov sib npaug
Residual solvent tom qab ntxuav lub phaj
Screen thiab substrate misaligned
Ink zoo heev rau kev suav mesh
Nruab nrab- luam ntawv nres lossis ob npaug - txhuam
Ntxim qab heev ink rov stroke
6. Npuas nyob rau hauv tus cwj mem kho
Squeegee ceev dhau los yog ziab sai heev
Npuas nyob rau hauv tus number case los yog tsis txaus stirring
Cov tshuaj tiv thaiv kab mob
qias neeg los yog oily substrate nto
7. Ink txheej tuab heev
Mesh suav tsawg dhau
Squeegee heev mos los yog ntug dhau lawm
Scraping lub kaum sab xis heev
Ntau tus lej ntawm qhov screen
Tsis ncaj squeegee siab
Phaj tuab heev
Kev luam ntawv qeeb dhau
8. Ink kis
Ink viscosity tsawg dhau
Ink dej dhau lawm
Screen nro tsis txaus
Squeegee siab dhau heev lawm
9. Cov cim ntawm cov ntawv luam tawm
Ua rau:Ink dries sai heev, fluidity tsawg dhau.
Kho:Siv ntau dua -fluidity number case nrog kev ziab kom qeeb qeeb. Ntxiv high -efficiency retarder. Siv ib qho -filament screen nrog thinner hlau txoj kab uas hla thaum lub phaj ua.
