Cov kev xav tau rau cov tswv rolls feem ntau suav nrog cov khoom siv raw, qhov ntev thiab qhov tshwj xeeb, cov khoom siv lub cev, thiab cov tsos zoo. Raws li ib qho tseem ceeb raw cov ntaub ntawv rau tom ntej slitting thiab ua, tus tswv yob yuav tsum muaj kev ruaj ntseg kev ua tau zoo thiab zoo processability los xyuas kom meej cov tiav zaj duab xis raws li cov kev cai ntim.
Cov khoom siv raw
Master rolls feem ntau yog tsim los siv linear low -density polyethylene (LLDPE) ua cov khoom tseem ceeb. High purity thiab ruaj khov kev ua tau zoo yog yuav tsum tau, nrog rau qhov tsim nyog ntxiv ntawm functional additives -xws li tackifiers thiab antistatic agents -raws li daim ntawv thov npaj. Cov khoom siv raw zoo cuam tshuam ncaj qha rau tus tswv yob lub zog tensile, toughness, tus kheej - adhesion, thiab kev pabcuam lub neej; Yog li ntawd, formulation ratios thiab ua tej yam kev mob yuav tsum nruj me ntsis tswj thaum lub sij hawm tsim khoom.
Dimensions thiab Specifications
Master rolls yuav tsum ua kom tau raws li cov neeg siv khoom lossis cov khoom siv ntau lawm, suav nrog cov tsis muaj xws li zaj duab xis dav, tuab, yob txoj kab uas hla, qhov ntev, qhov hnyav, thiab cov ntawv tseem ceeb. Zaj duab xis thickness yuav tsum nyob twj ywm, tsis muaj kev hloov pauv loj. Cov yob yuav tsum raug mob sib npaug thiab nruj nrog lub ntsej muag zoo nkauj, tsis muaj xoob winding, telescoping, lossis wrinkles, kom ruaj khov thaum lub sij hawm tom qab slitting.
Kev xav tau kev ua haujlwm
Master rolls yuav tsum muaj lub zog tensile siab, elongation ntawm so, tsim kua muag, thiab elastic rov qab. Cov zaj duab xis yuav tsum khaws zoo toughness tom qab stretching yam tsis yooj yim rupturing, thaum tseem tuav ruaj khov tus kheej -adhesion los xyuas kom meej cov txheej txheem stretch zaj duab xis yuav zoo qhwv thiab ruaj ntseg loads. Tsis tas li ntawd, cov khoom xws li kub tsis kam, noo noo tsis kam, thiab kev laus kuj yuav tsum tau kuaj raws li qhov chaw ua haujlwm.
Cov tsos zoo
Qhov saum npoo ntawm tus tswv yob yuav tsum du thiab huv si, tsis muaj qhov tsis xws luag xws li huab cua npuas, impurities, kev puas tsuaj, lossis cov xim tseem ceeb. Winding nro yuav tsum tsis sib xws los tiv thaiv cov teeb meem xws li ntug curling, wrinkling, los yog interlayer adhesion. Kev ua raws li cov kev cai nruj me ntsis ua kom muaj kev ruaj ntseg ntawm tus tswv yob thaum thauj, khaws cia, thiab ua tiav, thaum kawg txhim kho qhov zoo thiab kev ua haujlwm ntawm cov yeeb yaj kiab tiav.