Nthawi zambiri pali4 mitundu ya filimu zokutira zomwe zimagwiritsidwa ntchitoPP matumba oluka.Mitundu ya filimu yokutira ndi katundu wake ndi zofunika zoyambirira za PP nsalu thumba.

Izi ziyenera kudziwa musanasankhe zinthu zabwino kwambiri zamakanema.

Kutengera zosowa za ogwiritsa ntchito, mitundu isanu ya filimu yokutira kapena filimu ya laminated imagwiritsa ntchitothumba la polybagkupanga.

Mafilimu omwe amagwiritsidwa ntchito kwambiri ndifilimu ya ngale, filimu ya Aluminium, filimu ya matte, ndi filimu ya BOPP.

Mitundu yosiyanasiyana yamakanema imakhala ndi mawonekedwe osiyanasiyana ndipo motero ndiyoyenera kugwiritsidwa ntchito mosiyana.

Kusiyanitsa kwazinthu zamakanemawa kumapangitsa kuti polybag yoluka ikhale yoyenera kuyika zinthu zina.

1. Kanema wa Pearl:

Ngati mukufuna thumba lomwe lili ndi zofunikira zonse za chinyezi komanso kusindikizidwa, thumba la PP lopangidwa ndi filimu ya ngale lingakhale labwino kwambiri pakati pa matumba ena onse opangidwa ndi laminated.

Apa, wosanjikiza wa polypropylene kapena filimu yolumikizidwa mbali zonse za nsalu yolukidwa ya PP, ndipo zotsatira zake zimakhala zabwino kwambiri popanga kukopa kwabwino komanso kusindikiza.Filimu ya polypropylene imatha kulumikizidwa mosavuta kunsalu yapansi ndi njira yotchedwa kutentha kutentha.Kuphimba ndi ndondomekoyi kumakhalanso kokwera mtengo kwambiri.Chovala cha filimu ya ngale ndi umboni wa chinyezi, shading, ndi anti-corrosive.

Ndicho chifukwa chake angagwiritsidwe ntchito pazinthu zingapo.Zakudya monga mpunga, ufa, kapena zinthu zina zazing'ono zimatha kusungidwa mu izithumba lokutidwa.Chikwamachi ndi chodziwikanso kwambiri ponyamula katundu waulimi, feteleza wamankhwala, ndi zakudya za nkhuku.

2. Aluminium film:

Kanema wa aluminiyumu atha kugwiritsa ntchito kumaso kapena kumbuyo kwa thumba loluka la PP.

Kupaka utoto wa aluminiyamu kumawonjezera magwiridwe antchito a chikwama cha pp.

Ubwino waukulu umachokera ku katundu wotetezera kutentha kwa zojambulazo za aluminiyumu.Chifukwa cha kuchepa kwa kutentha pang'ono, matumba oluka a PP amakhala okulirapo komanso amakhala nthawi yayitali kuposa matumba anthawi zonse.

TheAluminiyamu yokutidwa PP nsalu thumbaNdiodziwika bwino kugwiritsa ntchito zopangira zosunga madzi, zopangira zakudya, ndi zida zina zomwe zimafunikira chotchinga chokwanira.

Zinthu zokutira izi zimapangitsa kuti chikwama chamsonkhano cha pp chikhale chopambana potengera kutentha kwamphamvu.Itha kugwiritsidwa ntchito pakuyika zakudya zomwe zimasunga kutentha komwe ndikofunikira kwambiri ngati zinthu zamkaka kapena fodya.

3. Mate filimu:

Makhalidwe apadera a matumba okutira awa ali ndi magawo angapo.Thethumba lopangidwa ndi matte la PPimateteza chinyezi ndipo imatha kusungira chakudya kapena zinthu zaulimi.

The kutambasula kukana katundu wa zinthu filimuyi ndi mkulu mokwanira kuti atsogolere bwino anatambasula katundu mu zonse utali ndi yopingasa mbali.

Izi zimapangitsa kuti nsalu yoyambira ikhale yolimba komanso imapangitsa kuti chikwama choluka cha PP chizitha kunyamula.Chikwama cha matte filimu laminated ndi chodziwika bwino pakulongedza zinthu zakudya pang'ono.

Ndi chifukwa cha khalidwe labwino kwambiri la filimu yonyamula katundu.Imalimbana ndi kutentha ndipo imakhala ndi mawonekedwe onyezimira kwambiri.

Imapanganso chotchinga cha okosijeni chomwe ndi chinthu chofunikira kwambiri posungira chakudya ndi zinthu zaulimi.

4. Kanema wa OPP:

Kanema wamba omwe amagwiritsidwa ntchito popangira matumba a polyethylene ndi matumba a OPP kapena BOPP.

OPP m'malo mwa filimu ya Orientated Polypropylene.Filimuyi ili ndi zinthu zambiri zoyenera zomwe zimapangitsa kuti ikhale yabwino kunyamula zakudya.

Choyikapo chakudya chiyenera kuteteza mphamvu zopatsa thanzi mpaka zitatha kutha.

Izi zikuphatikizapo kukana kokwanira ku chinyezi, kuwala kwa dzuwa, ndi zinthu za mpweya.Filimuyi iyeneranso kukulitsa chidwi chogulitsa ndipo iyeneranso kukhala yotsika mtengo.Zofunikira zonse zitha kupezeka pogwiritsa ntchito filimu ya BOPP pa chikwama cholukidwa cha poly.

Mitundu yosiyanasiyana yamakanema imakhala ndi mawonekedwe osiyanasiyana ndipo motero ndiyoyenera kugwiritsidwa ntchito mosiyana.Kusiyanitsa kwazinthu zamakanemawa kumapangitsa kuti polybag yoluka ikhale yoyenera kuyika zinthu zina.

Matumba oluka a PP amagwiritsidwa ntchito pazifukwa zingapo, chifukwa chake zinthu zofunika pakugwiritsa ntchito kulikonse ndizosiyana.

Kwa kamphindi, athumba la chakudyandipo filimu yake yokutidwa imafunikira ziyeneretso zotere kuti athe kuteteza zinthu zopatsa thanzi.

Zomangira zopangira zinthu za granular kapena ufa zimafunikira zinthu zotere kuti zitha kuletsa kutayikira ndi kufalikira kwa granular.

Dala lamadzimadzi limafunikira kumalizidwa kosakwanira madzi kochokera kuzinthu zina zokutira.

Chifukwa cha zofunikira zosinthika zamatumba opangidwa ndi pp, zida zamakanema zomwe zimagwiritsidwa ntchito popaka ndizosiyana.

Makanema ena amagwiritsanso ntchito kuvala ndi chikwama choluka cha PP koma, ntchito yawo ndi yochepa.Mafilimu ena ndi filimu yoletsa tizilombo toyambitsa matenda, filimu yotsutsa kachilomboka, filimu ya LDPE, filimu ya MDPE,

Kanema wa HDPE, filimu ya Polystyrene, filimu yotulutsidwa ya Silicone ndi filimu yopanda nsalu ndi zina mwa izo.