Ibhotile ye-shampoo ye-PET

2026-01-30

Xa sithatha ibhotile yeshampu esetyenziswa rhoqo, kuya kubakho ilebheli yePET ezantsi kwebhotile, ebonisa ukuba le mveliso yibhotile yePET. Iibhotile zePET zisetyenziswa kakhulu kushishino lokhathalelo lomntu kwaye uninzi lwazo zinkulu. Iibhotile zePET zizikhongozeli zeplastiki ezifunyanwa ngokucubungula izinto zeplastiki zePET ngeendlela zenyathelo elinye okanye ezimbini. Iplastiki yePET ineempawu zokuba ilula, icacile kakhulu, kwaye ayichaphazeleki kukuqhekeka nokuqhekeka.

I-PET, okanye i-polyethylene terephthalate, ikwaziwa ngokuba yi-polyester. Igama layo lesiNgesi yiPolyethylene Terephthalate, eveliswa yi-polymerization reaction (condensation) yezinto ezimbini zekhemikhali: i-terephthalic acid (PTA) kunye ne-ethylene glycol (EG). Ii-preforms zizinto ezibunjiweyo nge-injection. Njengemveliso ephakathi egqityiweyo yokwelula i-biaxial kunye ne-blow molding, intamo ye-preform ibunjwa ngexesha lesigaba sokubumba nge-injection, kwaye ubungakanani bayo abuyi kutshintsha ngexesha lokufudumeza kunye nokubumba nge-blow. Ubungakanani, ubunzima, kunye nobukhulu bodonga lwe-preform zizinto ekufuneka ziqwalaselwe kakhulu ngexesha lenkqubo yokubumba nge-blow yebhotile.

Xa kulungiswa iibhotile ezibunjiweyo, iitships zePET zifakwa kuqala kwi-preform. Kufuneka ukuba umlinganiselo wezinto ezisetyenzisiweyo ungabi phezulu kakhulu (ngaphantsi kwe-5%), kwaye amaxesha okuphinda kusetyenziswe akufanele adlule ezimbini. Ubunzima be-molecular kunye ne-viscosity akufuneki zibe phantsi kakhulu (ubunzima be-molecular 31,000 - 50,000, i-intrinsic viscosity 0.78 - 0.85 cm³/g). NgokoMthetho weSizwe woKhuseleko lokutya, izinto ezisetyenzisiweyo azivumelekanga ukusetyenziswa ekupakisheni ukutya kunye namayeza. Ii-preform ezibunjiweyo nge-injection kufuneka zigcinwe ngaphezulu kweeyure ezingama-24 ngaphambi kokusetyenziswa. Ii-preform ezingasetyenziswanga emva kokufudumeza kufuneka zigcinwe ngaphezulu kweeyure ezingama-48 ngaphambi kokuba zifudunyezwe. Ixesha lokugcina iibhotile akufuneki lidlule iinyanga ezintandathu. Umgangatho we-preform uxhomekeke kakhulu kumgangatho wezinto ze-PET, ngoko ke kuyimfuneko ukukhetha izinto ezilula ukuzifutha nokuyila, kunye nokuphuhlisa inkqubo yokubumba ye-preform efanelekileyo. Uvavanyo lubonisa ukuba ii-preforms ezenziwe ngezinto ezikrwada ezingeniswe kwamanye amazwe ezine-viscosity efanayo kulula ukuzivuthulula kunezo zenziwe ngezinto ezikrwada zasekhaya. Nangona kunjalo, kwi-batch efanayo yee-preforms, imihla eyahlukeneyo yemveliso inokufuna iinkqubo ezahlukeneyo zokuvuthulula. Umgangatho we-preform umisela ubunzima benkqubo yokuvuthulula. Iimfuno ze-preform kukucoceka, ukucaca, ukungabikho kokungcola, ukungabikho kombala, ubude obufanelekileyo be-injection point, kunye ne-halo ejikelezileyo.

Iibhotile zezinto zePP kunye nePE ikakhulu zinemibala eqinileyo, ngelixa izinto zePETG, PET, kunye nePVC zihlala zibonakala ngokucacileyo okanye zinombala ocacileyo onembonakalo ecacileyo nekhanyayo, kwaye imibala eqinileyo ayisetyenziswa rhoqo. Iibhotile zezinto zePET nazo zingapeyintwa ngesitshizi. Kukho indawo ecacileyo ezantsi kwebhotile ebotshelelwe ngesitshizi, ekhanya ngakumbi xa kukhanya. Umzantsi webhotile ebotshelelwe ngesitshizi unomgca wokubopha. Izixhobo eziphambili zeebhotile ezibotshelelwe ngesitshizi ziquka izithinteli zangaphakathi (ezisetyenziswa kakhulu kwizinto zePP kunye nePE), iikepusi zangaphandle (ezisetyenziswa kakhulu kwiPP, ABS, kunye ne-acrylic, kwaye zikwafumaneka kwiifinishi ezifakwe ngombane, ezifakwe ngombane, nezipeyintwe ngesitshizi, ezisetyenziswa rhoqo kwiibhotile zetoner), iikhava zentloko zepompo (ezisetyenziswa kakhulu kwi-essence kunye ne-lotion), ii-flip caps, kunye nee-snap caps (ezisetyenziswa kakhulu kwimigca yamakhemikhali yemihla ngemihla ejikeleza kakhulu).