Botolo la Shampoo PET

2026-01-30

Tikatenga botolo la shampu lomwe limagwiritsidwa ntchito kwambiri, padzakhala chizindikiro cha PET pansi pa botolo, kusonyeza kuti mankhwalawa ndi a PET. Mabotolo a PET amagwiritsidwa ntchito kwambiri mumakampani osamalira anthu ndipo nthawi zambiri amakhala ndi zinthu zambiri. Mabotolo a PET ndi ziwiya zapulasitiki zomwe zimapezeka pokonza zipangizo za pulasitiki za PET kudzera mu njira imodzi kapena ziwiri. Pulasitiki ya PET ili ndi mawonekedwe opepuka, owonekera bwino, komanso osagwedezeka ndi kusweka.

PET, kapena polyethylene terephthalate, imadziwikanso kuti polyester. Dzina lake lachingerezi ndi Polyethylene Terephthalate, yomwe imapangidwa ndi polymerization reaction (condensation) ya zinthu ziwiri zopangira mankhwala: terephthalic acid (PTA) ndi ethylene glycol (EG). Ma preform ndi zinthu zopangidwa ndi jakisoni. Monga chinthu chapakati chomalizidwa kutambasula biaxial ndi blow molding, khosi la preform limapangidwa panthawi yopangira jakisoni, ndipo kukula kwake sikudzasintha panthawi yotenthetsera ndi kutambasula/kupangira blow molding. Kukula, kulemera, ndi makulidwe a khoma la preform ndi zinthu zomwe ziyenera kusamalidwa kwambiri panthawi yopangira blow molding ya botolo.

Pokonzekera mabotolo opangidwa ndi blow-mold, ma PET chips amayamba kulowetsedwa mu preform. Pamafunika kuti chiwerengero cha zinthu zobwezerezedwanso chisakhale chokwera kwambiri (osakwana 5%), ndipo nthawi yobwezeretsanso siyenera kupitirira ziwiri. Kulemera kwa mamolekyulu ndi kukhuthala sikuyenera kukhala kotsika kwambiri (kulemera kwa mamolekyulu 31,000 - 50,000, kukhuthala kwamkati 0.78 - 0.85 cm³/g). Malinga ndi National Food Safety Law, zinthu zobwezerezedwanso siziloledwa kugwiritsidwa ntchito popaka chakudya ndi mankhwala. Ma preform opangidwa ndi jakisoni ayenera kusungidwa kwa maola opitilira 24 musanagwiritse ntchito. Ma preform osagwiritsidwa ntchito pambuyo potenthedwa ayenera kusungidwa kwa maola opitilira 48 asanatenthedwenso. Nthawi yosungira mabotolo sayenera kupitirira miyezi isanu ndi umodzi. Ubwino wa preform makamaka umadalira mtundu wa zinthu za PET, kotero ndikofunikira kusankha zinthu zosavuta kuzipaka ndi kupanga, ndikupanga njira yoyenera yopangira preform. Kuyesera kukuwonetsa kuti ma preform opangidwa kuchokera ku zipangizo zopangira zochokera kunja zomwe zili ndi kukhuthala komweko n'kosavuta kupukusa nkhungu kuposa omwe amapangidwa kuchokera ku zipangizo zopangira zapakhomo. Komabe, pa gulu lomwelo la ma preform, masiku osiyanasiyana opangira angafunike njira zosiyanasiyana zopangira nkhonya. Ubwino wa preform umatsimikizira kuuma kwa njira zopangira nkhonya. Zofunikira pa preform ndi kuyera, kuwonekera bwino, kusakhala ndi zodetsa, kusakhala ndi mtundu, kutalika koyenera kwa malo opangira nkhonya, ndi halo yozungulira.

Mabotolo a zinthu za PP ndi PE nthawi zambiri amakhala ndi mitundu yolimba, pomwe zinthu za PETG, PET, ndi PVC nthawi zambiri zimakhala zowonekera bwino kapena zamitundu yowala komanso yowala, ndipo mitundu yolimba imagwiritsidwa ntchito kawirikawiri. Mabotolo a zinthu za PET amathanso kupakidwa utoto wopopera. Pali malo ozungulira pansi pa botolo lopangidwa ndi blow-molded, lomwe limakhala lowala kwambiri pansi pa kuwala. Pansi pa botolo lopangidwa ndi injection-blow lili ndi mzere wolumikizira. Zowonjezera zazikulu za mabotolo opangidwa ndi blow-molded ndi monga zotsekera zamkati (zomwe zimagwiritsidwa ntchito kwambiri pazinthu za PP ndi PE), zipewa zakunja (zomwe zimagwiritsidwa ntchito kwambiri pa PP, ABS, ndi acrylic, komanso zimapezekanso muzomaliza za electroplated, electro-galvanized, ndi spray-painted, zomwe zimagwiritsidwa ntchito nthawi zambiri pamabotolo a toner), zophimba mutu wa pump (zomwe zimagwiritsidwa ntchito kwambiri pa essence ndi lotion), zipewa zopindika, ndi zipewa zodulidwa (zomwe zimagwiritsidwa ntchito kwambiri m'mizere yayikulu yamankhwala tsiku ndi tsiku).