Kodi Kanema Wowonjezera Wa Biaxially Oriented Polypropylene Overwrap Ndi Chiyani?

Filimu ya Biaxially oriented polypropylene (BOPP) ndi mtundu wa filimu yosinthika yosinthika. Biaxially oriented polypropylene overwrap film imatambasulidwa mumakina ndi njira zopingasa. Izi zimabweretsa mayendedwe a ma molekyulu mbali zonse ziwiri.

Mtundu uwu wa filimu yosinthika yosinthika umapangidwa kudzera munjira yopanga ma tubular. Kuwira kwa filimu yooneka ngati chubu kumatenthedwa ndikutenthedwa mpaka kufewetsa kwake (izi ndi zosiyana ndi malo osungunuka) ndipo amatambasulidwa ndi makina. Firimuyi imakhala pakati pa 300% - 400%.

Kapenanso, filimuyo imatha kutambasulidwa ndi njira yotchedwa tent-frame film production. Ndi njira iyi, ma polima amatulutsidwa pamiyala yoziziritsa (yomwe imadziwikanso kuti sheet sheet) ndikukokedwa motsatira makinawo. Kupanga filimu ya Tenter-frame kumagwiritsa ntchito mipukutu ingapo kupanga filimuyi.

Njira ya tent-frame nthawi zambiri imatambasula filimuyo 4.5: 1 kumbali ya makina ndi 8.0: 1 kumbali yopingasa. Izi zikunenedwa, ma ratios amasinthidwa kwathunthu.

Njira ya tent-frame ndiyofala kwambiri kuposa mtundu wa tubular. Amapanga filimu yonyezimira kwambiri, yomveka bwino. Kuwongolera kwa Biaxial kumawonjezera mphamvu ndipo kumabweretsa kuuma kwakukulu, kuwonekera bwino, komanso kukana kwambiri kwamafuta ndi mafuta.

Kanema wa BOPP alinso ndi zotchinga zowonjezera ku nthunzi ndi mpweya. Kukana kwamphamvu ndi kukana kwa flexcrack kuli bwino kwambiri ndi filimu ya BOPP motsutsana ndi polypropylene shrink.

Makanema a Biaxially oriented polypropylene overwrap ndi omwe amagwiritsidwa ntchito kwambiri pakuyika zakudya. Akusintha mwachangu cellophane kuti agwiritse ntchito kuphatikiza zakudya zokhwasula-khwasula komanso kunyamula fodya. Izi makamaka chifukwa cha katundu wawo wapamwamba komanso mtengo wotsika.

Makampani ambiri amasankha kugwiritsa ntchito BOPP m'malo mwa makanema ocheperako achikhalidwe chifukwa amakhala ndi zida zotsogola komanso kuthekera kopambana kwa makanema onyamula osinthika.

Tiyenera kuzindikira kuti kusindikiza kutentha kumakhala kovuta kwa mafilimu a BOPP. Komabe, izi zitha kukhala zosavuta pophimba filimuyo mutatha kukonza ndi chinthu chotsekedwa ndi kutentha kapena kugwirizanitsa ndi co-polymer musanagwiritse ntchito. Izi zidzabweretsa filimu yamitundu yambiri.