Cov Khoom Siv Thiab Tsim Cov Txheej Txheem Ntawm Cov Tshuaj Txhuam Hniav Lub raj mis

The main body of sunscreen bottles is typically made of polypropylene (PP), a thermoplastic resin known for its high temperature resistance, strong chemical stability, and low density, making it suitable for long-term contact with cosmetic ingredients. Cov txheej txheem molding yog tshuab molding, qhov twg molten PP granules raug txhaj rau hauv pwm, thiab siab - cov pa roj yog siv los ua kom lub tshuab ua ntej mus rau qhov xav tau, tsim lub thawv hollow. Qhov zoo ntawm tshuab moulding muaj xws li kev ua haujlwm siab, lub raj mis phab ntsa tuab, thiab muaj peev xwm ua tiav cov qauv tsim lub raj mis, xws li square / round fwj thiab lub raj mis tsis tu ncua.

Txhawm rau txhim kho qhov ua tau zoo thiab zoo nkauj ntawm lub raj mis tshuaj pleev thaiv hnub, cov txheej txheem kho saum npoo muaj xws li tshuaj tsuag pleev xim, tshuaj ntsuam luam ntawv, kub stamping (kub / nyiaj), thiab frosting. Kev pleev xim pleev xim tso cai rau ib qho -xim lossis ntau- xim xim kom tau raws li hom kev xav pom; tshuaj ntsuam luam ntawv hloov pauv cov qauv lossis cov ntawv rau lub raj mis lub cev siv lub vijtsam, muab kev hnav tsis kam; kub stamping (kub / nyiaj) siv cov kub kub los hloov cov ntawv hlau rau saum npoo, tsim kom muaj glossy tiav; frosting siv tshuaj los yog lub cev txoj kev los muab lub raj mis ib tug matte kev ntxhib los mos, txhim khu kev tuav thiab plam tsis kam. Cov txheej txheem no tuaj yeem siv tus kheej lossis ua ke; Piv txwv li, tshuaj tsuag pleev xim tuaj yeem siv los ua txheej txheej, ua raws li kev tshuaj ntsuam - luam ntawv logos thiab kub stamping ciam teb.