Zaj duab xis tshuab yog cov cuab yeej siv tshuab uas ua kom cua sov thiab yaj cov yas ua kom tawg thiab tom qab ntawd rau hauv zaj duab xis. Nws cov txheej txheem tseem ceeb suav nrog melting yas resin, extruding nws mus rau hauv molten yas raj los ntawm pwm, txias thiab ua rau nws, thiab winding nws mus rau hauv ib lub yob. Cov txheej txheem no yog hu ua zaj duab xis extrusion, uas lub hom phiaj los tsim cov yeeb yaj kiab yas nrog cov khaub noom zoo nkauj tuab thiab zoo nkauj.
Cov yeeb yaj kiab tsim los ntawm zaj duab xis tshuab yog dav siv nyob rau hauv ntau cov txiv hmab txiv ntoo, vim yog cov khoom siv kho mob, thiab cov roj ntsha, thiab roj ua kom zoo. Nyob ntawm cov khoom siv thiab cov yam ntxwv, cov naam tsim los ntawm zaj duab xis tshuab tuaj yeem faib ua ntau hom, suav nrog:
LDPE (tsawg {{- ntom polyethylene) zaj duab xis: Nws yog dav siv nyob rau hauv cov liaj teb xws li cov khoom noj khoom haus, thiab lwm yam.
HDPE (siab - ntom polyethylene) zaj duab xis: Nws muaj cov tshuaj lom neeg tsis zoo, thiab feem ntau siv hauv kev lag luam ntim hnyav thiab tsim khoom lag luam.
LLDPE (tawm tsawg - ntom polyethylene) zaj duab xis: Nws tsim nyog rau cov khoom noj uas muaj nqaij xws li nqaij thiab cheese.
PP (polypropylene) Zaj duab xis: Nws yog lub npe hu rau nws cov cua sov thiab tshuaj lom neeg thiab feem ntau yog siv hauv cov khoom noj txom ncauj, khoom qab zib, thiab lwm yam.
PVC (polyvinyl chloride) zaj duab xis: nws yog pob tshab thiab muag muag, haum rau cov ntim nqaij, cheese thiab khoom siv kho mob.
Eva (Ethylene - vinyl acetate copolymer) zaj duab xis: nws yog qhov siv tau ntawm cov khau thiab khaub ncaws, thiab lwm yam.
Tsis tas li ntawd, txhawm rau kom tau raws li cov kev xav tau ntawm cov ntaub ntawv yas tshwj xeeb ntim, xws li {}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} Excenter zaj duab xis tshuab tau tsim. Multi-layer co-extrusion film blowing machines are divided into two-layer co-extrusion film blowing machines, three-layer co-extrusion film blowing machines, five-layer co-extrusion film blowing machines, Lwm yam
