Tshuab-qib stretch zaj duab xis yog tsim los siv cov khoom siv polyethylene los ntawm cov txheej txheem uas muaj cov yaj extrusion, cam khwb cia molding, cua txias thiab teeb tsa, ncab, thiab winding. Vim tias lub tshuab- qib stretch zaj duab xis yuav tsum tiv taus qhov siab -kev ua haujlwm ceev ntawm cov khoom ntim khoom siv, kev tswj nruj nruj ntawm cov tuab, tensile zog, thiab tus kheej- adhesion yog qhov tseem ceeb thaum lub sij hawm tsim khoom los xyuas kom meej cov ntim zoo ib yam.
Thaum lub sijhawm npaj cov khoom siv raw, cov tuam txhab feem ntau xaiv cov kab qis- ntom polyethylene (LLDPE) ua cov khoom tseem ceeb, suav nrog cov khoom siv ntxiv xws li cov tackifiers thiab cov tshuaj tiv thaiv kab mob raws li kev ua haujlwm tshwj xeeb. Tom qab batching thiab sib tov meej, cov ntaub ntawv raw nkag mus rau hauv cov khoom siv extrusion, qhov chaw uas lawv tau melting thiab plasticization ntawm qhov kub thiab txias kom ua tiav lub xeev zoo, ruaj khov molten.
Lub molten yas yog extruded los ntawm lub tshuab thiab ib tug precision tuag los tsim ib tug nruam zaj duab xis. Qee lub tshuab ua haujlwm siab-qib stretch films siv ntau- txheej co-extrusion technology; los ntawm kev sib txuas cov khoom sib txawv, cov yeeb yaj kiab ua tiav qhov sib npaug ntawm lub zog siab, zoo toughness, thiab ruaj khov adhesion. Cov yeeb yaj kiab tsim tau txias sai heev uas siv cov tshuab cua txias kom ruaj khov nws cov qauv thiab txhim kho qhov smoothness.
Cov zaj duab xis undergoes kos duab thiab ncab, thickness tshuaj xyuas, thiab winding los tsim ib tug tswv yob, uas yog tom qab slit thiab ntim raws li cov neeg siv khoom specifications. Thoob plaws hauv kev tsim khoom, cov kev txwv xws li thickness, pob tshab, lub zog tensile, tus kheej -adhesion, thiab pom kev zoo raug saib xyuas kom ntseeg tau tias cov khoom ua tau raws li qhov yuav tsum tau ua. Los ntawm kev txhim kho cov txheej txheem tsim khoom thiab kev tswj cov cuab yeej, siab - tshuab ua haujlwm- qib stretch films haum rau cov khoom ntim khoom siv tau tuaj yeem tsim tau.