Nco ntsoov nco ntsoov tias thaum khaws cov zaj duab xis stretch, koj yuav tsum tau them sai sai rau qhov kub thiab txias.

Thaum khaws cia cov yeeb yaj kiab stretch, peb yuav tsum tau them sai sai rau nws qhov kub thiab txias, kom tsis txhob muaj qhov kub thiab txias thiab cuam tshuam rau lub sijhawm. Cia peb kawm txog qhov kub thiab txias hloov ntawm stretch film cia:

Stretch zaj duab xis yog ib hom kev ntim khoom uas siv cov cuab yeej siv tshuab ncab lossis phau ntawv quab yuam kom ncab zaj duab xis nyob rau hauv qhov kub thiab txias los qhwv cov khoom kom nruj rau kev thauj mus los yooj yim thiab khaws cia. Nws yog ib daim ntawv ntim nrov heev hauv ntiaj teb. Txais cov khoom siv tuaj txawv teb chaws thiab cov txheej txheem ntau lawm ntawm cov yeeb yaj kiab extrusion. Nws muaj cov yam ntxwv ntawm cov khoom tensile zoo, tsim kua muag tsis kam, muaj zog tiv thaiv, siab transparency, zoo self-adhesion, siab retraction tus nqi, nruj ntim thiab tsis muaj looseness. Nws tuaj yeem siv dav hauv ib lub thawv lossis pallet ntim thiab lwm yam ntim cov khoom siv tshuaj raw khoom, chiv, khoom noj, khoom siv hluav taws xob thiab hluav taws xob, thiab cov khoom siv hluav taws xob.

Cov zaj duab xis stretch yuav tsum tau khaws cia ntawm qhov kub ntawm 15 txog 25 degrees. Yog tias nws qis dua 15 degree lossis siab dua 30 degree, viscosity yuav ua rau me ntsis zuj zus. Rau kev siv cov nyhuv ntawm cov zaj duab xis ncab, nws yuav tsum tau khaws cia ntawm qhov kub thiab txias.