Stretch zaj duab xis yog cov khoom ntim uas muaj ntau tshaj plaws ntawm cov kab uas tsis tshua muaj polyethylene lossis LLDPE, uas yog tsim los ntawm copolymerizing ethylene nrog -olefins, feem ntau yog butene, hexene thiab octene. Kev siv cov qib siab-olefins (hexene lossis octene) tuaj yeem txhim kho cov khoom ntawm stretch films, tshwj xeeb tshaj yog nyob rau hauv cov nqe lus ntawm elongation ntawm tawg thiab puncture kuj. Lwm hom polyethylene thiab PVC kuj tseem siv tau. Ntau cov yeeb yaj kiab muaj qhov elongation ntawm kev tawg ntawm 500%, tab sis tsuas yog ncav cuag 100-300% hauv kev siv. Tom qab stretching, elastic rov qab yog siv los ua kom lub load compact.
Pawg thiab subcategories ntawm stretch wrapping ntawv:
Stretch zaj duab xis, tseem hu ua stretch zaj duab xis, ntim zaj duab xis, PE tiv thaiv zaj duab xis, tuaj yeem muab faib ua phau ntawv stretch zaj duab xis thiab tshuab ncab zaj duab xis raws li phau ntawv los yog siv tshuab.
