①Cov ntaub ntawv sib xyaw ua ke ntawv-yas. Daim ntawv muaj kev ua tau zoo ntawm kev luam ntawv, kev nkag tau zoo ntawm huab cua, tsis tiv taus dej, thiab tsis yooj yim hloov pauv thaum sib cuag nrog dej; zaj duab xis yas muaj kev tiv taus dej thiab huab cua nruj zoo, tab sis luam tawm tsis zoo. Tom qab ob qho sib xyaw ua ke, cov ntaub ntawv sib xyaw xws li yas-ntawv (zaj duab xis yas ua cov khoom siv saum npoo), ntawv-yas (ntawv ua cov khoom siv saum npoo), thiab yas-ntawv-yas raug tsim. Cov ntaub ntawv sib xyaw ua ke ntawv-yas tuaj yeem txhim kho kev tiv taus dej noo ntawm daim ntawv, thiab tib lub sijhawm muaj qee qhov kev kaw cua sov. Nws tuaj yeem sib xyaw ua ke los ntawm cov txheej txheem sib xyaw qhuav, cov txheej txheem sib xyaw ntub thiab cov txheej txheem sib xyaw extrusion.

②Cov khoom siv yas sib xyaw. Cov khoom siv yas-yas sib xyaw yog cov khoom siv sib xyaw feem ntau. Ntau yam yas zaj duab xis muaj lawv tus kheej qhov zoo thiab qhov tsis zoo. Tom qab sib xyaw ua ke, cov khoom tshiab muaj cov yam ntxwv zoo heev xws li tsis kam roj, tsis kam noo noo, thiab kub sealing. Tom qab sib xyaw ua ke yas-yas, ob txheej, peb txheej, plaub txheej thiab lwm yam khoom siv sib xyaw tuaj yeem tsim, xws li: OPP-PE BOPET - PP, PE, PT PE-evoh-PE.

③Cov khoom siv sib xyaw ua ke ntawm txhuas thiab yas. Cov ntawv ci txhuas muaj cua nruj thiab cov khoom thaiv zoo dua li cov yas zaj duab xis, yog li qee zaum cov yas-txhuas-yas sib xyaw, xws li PET-Al-PE, siv.

④Cov khoom siv sib xyaw ua los ntawm ntawv-txhuas-yas. Cov khoom siv sib xyaw ua los ntawm ntawv-txhuas-yas siv cov ntawv luam tawm zoo, cov txhuas tiv taus dej noo thiab thermal conductivity zoo, thiab qee cov yeeb yaj kiab kaw tau zoo thaum tshav kub. Kev sib xyaw ua ke tuaj yeem tau txais cov khoom sib xyaw tshiab. Xws li ntawv-txhuas-polyethylene.

Tshuab FexoTxawm yog hom khoom sib xyaw ua ke twg los xij, nws yuav tsum tau kom txheej sab nraud muaj cov ntawv luam tawm zoo thiab cov khoom siv kho tshuab, txheej sab hauv muaj cov khoom nplaum zoo rau kev kub-sealing, thiab txheej nruab nrab muaj cov khoom uas cov ntsiab lus xav tau, xws li thaiv lub teeb, thaiv dej noo thiab lwm yam.