Mapaketi a madzi oundana amakonzedwa nthawi zambiri amapangidwa ndi zinthu zingapo zofunika popereka kuperekera zinthu zabwino komanso kukhazikika kokwanira. Zida zazikulu zimaphatikizapo:
1. Zosanjikiza kunja:
-Nzake: zopepuka komanso zolimba, zomwe nthawi zambiri zimagwiritsidwa ntchito poyang'ana kunja kwa mapaketi apamwamba kwambiri. Nylon ali ndi vuto kukana ndi kusokoneza misozi.
-Oyenetse: winanso yemwe amagwiritsa ntchito zinthu zakunja, zotsika mtengo kuposa namloni, komanso zimakhalanso ndi kukhazikika kwam'misona.
-VIYL: yoyenera kugwiritsa ntchito mapulogalamu omwe amafunikira madzi osasunthika kapena osavuta kuyeretsa malo.
2. Zinthu zotsikira:
-Polwirethane chithovu: Ndi zinthu zofala kwambiri, ndipo zimagwiritsidwa ntchito kwambiri mu madzi oundana oundana chifukwa cha magwiridwe antchito abwino kwambiri.
-Polystyrene (eps) chithovu: omwe amadziwikanso kuti Strrofoam, nkhaniyi imagwiritsidwa ntchito mabokosi ozizira kwambiri komanso njira zina zosungira nthawi imodzi.
3. Zamkati zovala zamkati:
-Avulmunum zojambulajambula kapena filimu yachitsulo: yomwe nthawi zambiri imagwiritsidwa ntchito ngati zinthu zomwe zimathandizira kuwonetsa kutentha ndikukhalabe kutentha kwamkati.
-Fod kalasi ya peva (polyethylene vinyl acetate): Zinthu zopanda pake zomwe zimagwiritsidwa ntchito poizoni mkati mwa chakudya, ndipo mulibe PVC.
4. Filler:
-Geli thumba: thumba lomwe lili ndi gel yosalala, yomwe imatha kupitilirabe kuzizira kwa nthawi yayitali mutazizira. Gel nthawi zambiri imapangidwa ndi kusakaniza madzi ndi polymer (monga polyacryamide), nthawi zina zoteteza ndi antifalapy ndi zipewa zimawonjezeredwa kuti zizigwira ntchito.
-Madzi ena kapena mayankho ena: Mapaketi ena osavuta okha amatha kukhala ndi madzi amchere okha, omwe ali ndi nthawi yotsika kuposa madzi oyera ndipo amatha kupatsa nthawi yayitali yozizira panthawi ya firiji.
Mukamasankha thumba loyenerera loyenera, muyenera kuganizira ngati zida zake zikukwaniritsa zosowa zanu zenizeni, makamaka ngati chitetezero cha chakudya chimafunikira kuyeretsa kapena kugwiritsa ntchito malo ena.
Post Nthawi: Jun-20-2024