Cov ntaub ntawv zoo sib xws thiab kev txhim kho yav tom ntej ntawm cov hnab ntim khoom sib xyaw
Cov khoom ntim khoom sib xyaw yog hais txog cov khoom ntim uas nyias thiab mos cov ntaub ntawv sib xyaw ua ke los ntawm cov txheej txheem sib xyaw, tseem hu ua cov khoom ntim tau yooj yim, uas yog tsim los ntawm ntau yam khoom yas.
Feem ntau siv nyob rau hauv moisturizing face mask bag ntim, ntxhua khaub ncaws hnab, khoom noj txom ncauj hnab, ntim khaub ncaws hnab. . .
Niaj hnub no, kuv yuav tham txog cov khoom siv feem ntau siv rau cov hnab ntim khoom no:
1. Biaxially oriented polypropylene zaj duab xis (BOPP)
Nws yog tau los ntawm co-extruding polypropylene hais rau hauv nplooj ntawv, thiab ces ncab lawv nyob rau hauv ob qho tib si ntsug thiab kab rov tav cov lus qhia. Vim qhov kev taw qhia ntawm cov khoom siv stretched, cov yeeb yaj kiab no muaj kev ruaj ntseg zoo ntawm lub cev, lub zog txhua yam, huab cua nruj, siab transparency thiab gloss, toughness, thiab hnav tsis kam, thiab yog cov khoom siv dav siv ntau tshaj plaws nyob rau tam sim no. 40μm, feem ntau siv yog 20μm.
Lub ntsiab tsis zoo ntawm biaxially oriented polypropylene zaj duab xis yog qhov tsis zoo thaum tshav kub kub sealing, yog li nws feem ntau yog siv los ua cov yeeb yaj kiab sab nrauv ntawm cov yeeb yaj kiab sib xyaw. Xws li: tom qab sib xyaw nrog polyethylene zaj duab xis, noo noo tsis kam, pob tshab, lub zog, tawv tawv, thiab kev luam tawm yog qhov zoo tagnrho, haum rau tuav cov zaub mov qhuav. Vim tias qhov chaw ntawm biaxially oriented polypropylene zaj duab xis yog tsis-polar, siab nyob rau hauv crystallinity, thiab tsis tshua muaj lub zog tsis muaj zog, nws cov kev luam ntawv tsis zoo, thiab cov adhesion rau number case thiab adhesives tsis zoo. deal nrog.
2. Cam khwb cia polypropylene zaj duab xis (CPP)
Nws yog polypropylene zaj duab xis uas tsim los ntawm cov txheej txheem casting thiab tuaj yeem muab faib ua CPP zoo tib yam thiab qib CPP. Cov pob tshab zoo heev, cov tuab tuab, thiab cov khoom ntsug thiab kab rov tav feem ntau yog siv los ua cov txheej txheem sab hauv ntawm cov yeeb yaj kiab sib xyaw.
Lub thickness ntawm zoo tib yam CPP zaj duab xis yog feem ntau ntawm 25 thiab 50 μm. Tom qab sib xyaw nrog OPP, lub pob tshab yog qhov zoo, qhov chaw ci ntsa iab, thiab txhais tes xav tau ruaj khov. Cov khoom siv zoo li no yog siv rau hauv cov hnab ntim khoom plig, thiab cov yeeb yaj kiab no kuj muaj kev sib khi zoo.
Qhov tuab ntawm qib ua noj CPP zaj duab xis yog feem ntau ntawm 60 thiab 80 μm, thiab nws tuaj yeem tiv taus qhov kub thiab txias ntawm 121 ° C thiab 30 feeb. ntawm CPP zaj duab xis.
3. Tsawg-density polyethylene zaj duab xis (LDPE)
Low-density polyethylene films feem ntau yog tsim los ntawm tshuab molding thiab casting. Low-density polyethylene zaj duab xis yog ib qho translucent, glossy, mos-textured zaj duab xis nrog tshuaj lom neeg ruaj khov, kub-sealability, dej tsis kam, thiab noo noo tsis kam, khov tsis kam, thiab tuaj yeem boiled.
Nws lub ntsiab tsis zoo yog tias nws muaj cov khoom tsis zoo rau cov pa oxygen. Nws yog feem ntau siv rau hauv cov yeeb yaj kiab sab hauv ntawm cov khoom ntim cov khoom sib xyaw ua ke, thiab nws kuj yog siv ntau tshaj plaws thiab feem ntau siv cov yas ntim zaj duab xis, suav txog li 40 feem pua ntawm kev noj cov yas ntim zaj duab xis ...
Vim hais tias polyethylene molecules tsis muaj pawg polar thiab muaj crystallinity siab thiab tsis tshua muaj lub zog tsis muaj zog, zaj duab xis muaj kev luam ntawv tsis zoo thiab tsis zoo rau cov inks thiab adhesives. Kev kho saum npoo.
4. Polyester zaj duab xis (PET)
Polyester zaj duab xis yog ua los ntawm polyethylene terephthalate li raw khoom, ua rau hauv ib daim ntawv tuab los ntawm txoj kev extrusion, thiab tom qab ntawd ua rau hauv cov khoom siv los ntawm biaxial stretching.
Nws yog cov xim tsis muaj xim, pob tshab, thiab glossy zaj duab xis nrog cov khoom siv zoo heev, siab rigidity, hardness thiab toughness, puncture kuj, kev sib txhuam tsis kam, kub thiab kub tsis kam, tshuaj tsis kam, roj tsis kam, airtightness, thiab tshuaj tsw qab tuav. Zoo, nws yog ib qho ntawm feem ntau siv teeb meem rau kev sib xyaw zaj duab xis substrates. Txawm li cas los xij, tus nqi ntawm polyester zaj duab xis yog qhov siab, thiab dav dav yog 12 μm.
5. Nylon zaj duab xis (PA)
Nylon zaj duab xis yog ib zaj duab xis tawv heev nrog pob tshab, zoo gloss, siab tensile zog thiab tensile zog, thiab zoo kub kuj, txias kuj, roj kuj, thiab organic hnyav kuj. Nws muaj qhov zoo ntawm kev ua haujlwm zoo thiab kev ua haujlwm tsis zoo thiab yog qhov muag muag, thiab muaj cov pa oxygen barrier zoo heev, tab sis muaj cov dej vapor barrier tsis zoo, kev nqus dej siab, noo noo permeability, thiab tsis zoo thaum tshav kub kub sealing zog. Nws yog tsim rau ntim cov khoom nyuaj, xws li cov khoom noj greasy, cov khoom noj nqaij, cov khoom noj kib, cov khoom noj khoom haus ntim, cov khoom noj rov qab, thiab lwm yam.
6. Aluminized zaj duab xis - polyester aluminized zaj duab xis (VMPET) thiab CPP aluminized zaj duab xis (VMCPP)
Tam sim no, feem ntau siv aluminized films yog polyester aluminized zaj duab xis (VMPET) thiab CPP aluminized zaj duab xis (VMCPP). Aluminized zaj duab xis muaj ob qho tib si cov yam ntxwv ntawm cov yas zaj duab xis thiab cov yam ntxwv ntawm cov hlau. Kev ua haujlwm ntawm aluminium plating rau ntawm qhov chaw ntawm zaj duab xis yog los thaiv lub teeb thiab tiv thaiv ultraviolet hluav taws xob, uas tsis yog tsuas yog ncua lub txee lub neej ntawm cov ntsiab lus tab sis kuj txhim kho qhov ci ntawm zaj duab xis. Nws hloov aluminium foil rau qee yam. Nws kuj muaj cov khoom thaiv zoo dua. Aluminized films yog siv dav hauv kev ntim khoom.
Niaj hnub no cov khoom siv rau cov hnab ntim txhua hnub tau sib koom, thiab tag kis peb yuav qhia txog kev txhim kho yav tom ntej ntawm cov hnab no!
