Yuav ua li cas thermal lamination film ua haujlwm thiab vim li cas nws tseem ceeb
Thermal laminating film yog dab tsi thiab nws ua haujlwm li cas
Daim phlob tshuab hlau muaj feem ntau yog daim polyester tsim nyog uas muaj qhov sib xyaw uas yuav ploj thaum tso tshuab nruj. Thaum siv tshuab nruj ntawm 240 mus 300 degrees Fahrenheit thiab ntxig siab me me, qhov sib xyaw no yuav ploj thiab khi nrog rau daim ntawv, daim paub xwm, thiab lwm yam khoom sib xws. Qhov kev pheej hmoo no tag nrho kuj tag ntev, feem ntau tsis ntau tshaj 20 seconds rau ib leev ntawv. Rau cov neeg ua haujlwm uas muaj ntau leev ntawv, qhov kev pheej hmoo no yooj yim dua heev kompared to cold lamination method, uas tuaj yeem nyuaj dua tshaj, tshpecially thaum ua haujlwm ntau daim ntawv ib txhis.
Daim Pheej Txog Kev Nyob Sib Txuas Los ntawm Keev Hluav taws xob Nyob Rau Hauv Qhov Chaw Luv Lashing
Yog ib txoj hauv kev los nrhiav tus ntsuas kawg qhov tseemceeb rau kev nyob zoo. Thaum sib cuag nrog qhov rooj tsim nyog ntawm 265 degrees Fahrenheit, muaj peev xeeb ntawm 5 degrees, tib yam adhesive thiaj li hlo plaws dua tas li—nyob rau hauv 2 rau 5 seconds, uas pab nws nyob nrog rau hauv qhov chaw me me rau cov khoom rough lossis porous. Siv 30 rau 50 pounds per square inch ntawm kev nyiag siab tuaj yeem pab tshem tawm cov av nyob hauv qab thiab tsim ib tug kev sib raug zoo tib si rau sab nraud. Cov kev sim los ntawm Material Science Review yog qhov tseem ceeb, uas pom tias kev sib xyaw tau txog qhov ntsuas 4 Newtons per square centimeter. Tom qab ua paub sov, tso kom coov tawm tas li feem ntau yuav nyob rau hauv 8 rau 12 seconds. Tus teeb meem uas peb tau txais yog ib yam uas nyob tau ntev tsis tuaj yeem tshav mus lawm, tshwj tsis pub rau hauv qhov chaw muaj kev nyiag siab.
Cov phiaj xwm los siv thermal laminating film rau kev tswj sau ntawv
Thaum peb hais txog kev sib xyaw rau qhov chaw sov, yog li peb tseem ceeb saib tias yuav tsum muaj zog siab los dhau qhov ua ntej los ntawm dej, dab ning, thiab kev siv hnav tag leeg. Lub zog siv sijhawm ntau yuav tsum muaj cov duab ntoo PET polymer uas pab kom pom meej vim tsis tau raug ntxig ntau, yog li yuav muaj kev nyob ntev dua. Ib co kev xam pom tias cov ntaub ntawv uas muaj kev tswj xyuas no yuav nyob ntev dua li 10 xyoo ntau dua li cov ntaub ntawv tsis muaj kev tswj xyuas. Ntawm qhov nyob ntev dua no, kuj muaj qhov zoo siab tshiab uas pab kom daim ntawv muaj qhov zoo siab dua. Yog li ntawd, cov neeg ua haujlwm feem ntau xaiv kev sib xyaw rau ib co yam tshwj xeeb xws li lub lauj kaub, lub thawv looj kab lus rau tsev pov, thiab cov ntaub ntawv sib tham rau hauv tsev kawm, yam uas tau siv ntau hnav tag leeg.
Cov Ntsiab Lus Txog Zog: Siab, Zog Dhau Kev Siv, Thiab Qhov Siv
Ntsiagtxiv ntawv nplua nplai: 1.5 Mil, 3 Mil, 5 Mil, 7 Mil, thiab 10 Mil
Zib ntsuab muaj nyob rau hauv qhov loj ntawm thickness, uas raug xam nrog tshwj tsis ib cheeb. Cov txiaj ntsig tseem ceeb yog 1.5, 3, 5, 7, thiab 10 mil thickness. Cov thickness sib txawv no muaj kev pab kom zoo dua. Piv txwv li, cov 1.5 mil zoo tshaj rau cov hlo sib tw tsawg thiab tsis xav tau kev pab ntau. Ntau tus neeg pom tias cov 3 mil yog qhov tsim nyog rau cov ntaub ntawv tsha yuav tsum ruaj khov, xws li flyers lossis cov ntaub ntawv tso. Thaum sawv dhau rau cov zib ntsuab loj dua, 5 mil pab rau cov card ntaub nthuav lossis cov hu kauv muaj qhov ruaj dua. Tom qab ntawd muaj cov zib ntsuab loj dua 7 thiab 10 mil uas tseem ceeb heev rau kev siv ntau. Cov zib ntsuab loj no yog qhov yooj yooj rau cov ntaub ntawv uas siv tag nrho lub sijhawm, xws li cov ID badge rau cov neeg ua haujlwm lossis cov menu rau chaw nyob khoom. Muaj qhov sib txawv no txhooj nqa tias neeg tuaj yeem xaiv yam uas xav tau rau lawv tus kheej tsis tas tiv thaiv ntau.
Qhov loj ntawm zib ntsuab thiab qhov ruaj: Sib piv 1.5 mil rau 10 mil kev ua haujlwm
Thaum cov khoom sib txaws, lawv feem ntau nyiaj hnub ntev dua. Ib chav 1.5 mil tsis muaj kev txaus siab rau qhov twg, tsuas yog kaum rau kev siv haujlwm thiab tiv thaiv kev chaw xwb rau ib lossawv ob hnub max. Yog tias pheej 3 mil ces zoo dua, vim nws tiv thaiv kev kuaj thiab tuaj yeem siv tau ib co tsis tshaib. Thaum peb mus txog 5 mil, muaj kev pheev txwv nyob hauv qhov tsim nyog ntawm cov khoom tsim nyog dhau kev rhaub thiab lwm yam. Ib chav 7 mil sov dav dav, yog li nws tsis huv siab dua. Thiab tom qab ntawd muaj 10 mil, uas thaum ntawd txiav txim siab tiv thaiv dhau kev tsom tes thiab kev sib txawv ntawm dej thiab ntuj. Qhov teeb meem? Nws nrug ib co nyob hauv kev ua kom huv siab dua li cov kho rau tshaj.
Sib piv lub thickness ntawm daim film thiab yam neej xwm yeem: Los ntawm kev muab tso rau hauv duab los mus rau daim ntawv tso tseg
Thaum txhajkuj sau thickness, nug tseeb tias yam no yuav siv ntau npaum li cas thiab yuav tsum nyob ntev npaum li cas. Rau cov khoom uas tsuas nyob ib sijhawm, xws li cov poster liab nyob hauv kev lag luam lossis cov ntawv sau tshwj tsis txaus si, 1.5 to 3 mil films feem ntau yog tsis loj heev thiab tsis muaj ntau nqi. Cov ntawv qhia kev sib tham thiab cov ntawv qhia uas neeg siv hauv hnub no rau hnub tom, lawv feem ntau yuav tsum siv ntau heev, yog li 5 mil yog qhov zoo tshaj plaws uas tsis muaj ntau nqi. Cov ntawv tseem ceeb uas xav tias yuav tsum nyob tau ntau xyoo, tuaj yeem raug ntxuav, lossis tuaj yeem muaj kev txwv kom tsis txawj, yuav tsum siv cov thickness zoo li 7 to 10 mil. Feem ntau cov chaw ua haujlwm pom tias qhov no yog qhov yooj yim vim lawv tsis tseem ceeb nqi ntau heev rau qhov tsis tseem ceeb, tab sis lawv kuj tau tau yam uas lawv xav tau rau kev tsoj siab ntev.
Qhov thickness cuam tshuam rau kev nyiag, kev nyiag siab, thiab kev siv nrog tshuab
Yog meej li cas nyob ib puag ncig tseem muaj txawv rau qhov chaw nws tuaj yeem npaj kom zoo li cas thiab yam khoom siv los pab nws. Qhov me me li 1.5 mus rau 3 mil films feem ntau tsis tuaj yeem npaj tau, yog li ntawd neeg feem ntau tuaj yeem rov nws lossis npaj nws tsis muaj kab ntsug, tab sis lawv tsis tuaj yeem tshav tsheb zoo dua li. Qhov kawg tshiab li 5 mil muaj kev sib cuag zoo li qhov tuaj yeem npaj le, tab sis tseem muaj qhov chaw tshwj xeeb. Thaum peb tuaj yeem txog cov khoom loj dua li 7 mus rau 10 mil, cov no tuaj yeem los yog tshwj xeeb tshaib li boards uas tsis tuaj yeem npaj tau yooj yim, tab sis tuaj yeem tshaib tias yuav tsum break yog tias muab tus neeg coj mus npaj. Txog yam khoom siv, qhov thickness no tuaj yeem tshaib tias yuav tsum tau ua tiav ntau. Feem ntau cov khoom siv office laminators tuaj yeem ua haujlwm zoo nrog txog 5 mil khoom. Tab sis thaum muaj qhov loj dua li ntawd, tsuas yog cov khoom siv industrial strength thiaj tuaj yeem ua tau vim tias nws xav tau ntau tshaj plaws heat thiab pressure kom ua haujlwm zoo. Khrim siab ua qhov twg los ntawm lub laminator, yuav tsum nrhiav xyuas ntau tias nws muaj ceeb toom dab tsi kom tiv thaiv qhov paper jams lossis qhov edge tsis tshwm sim uas tsis muaj leej twg xav tau.
Kev Pab Txhim Kev Rho Tseg Thiab Kev Tiv thaiv Tsheej Xeeb rau Kev Siv Ntev
Kev tiv thaiv UV nyob rau hauv duv muaj chaw: Kawm saib xyuas li cas thiab qhov zoo
Duv muaj chaw kawm nruab heat uas tsim los tiv thaiv kev pu tsuas los ntawm UV tuaj zoo heev nyob rau kev tiv thaiv yam tsis xav tau los ntawm cov rays ultraviolet uas cuam tshuam rau kev sib txawv hla, cov teeb laug, thiab kev pu tsuas ntawm yam khoom tag nrho thaum lub sijhawm. Cov saib xyuas no muaj cov khoom sib txawv uas tso cai rau kev so thaub lossis rov qab cov sunlight ua vor thaum twg nws tuaj yeem ua rau muaj kev phem. Qhov pom tseeb? Cov lus qhia zoo uas tsis hla, thiab cov lus qhia tseem ceeb uas tsis hla thaum lub sijhawm, tsis hais txog yog tias lawv nyob ze cov duab fluorescents lossis nyob ze cov dej ntuj. Yog li ntawd cov neeg siv khoom siv cov duv muaj chaw no thaum tsim yam tshwj xeeb li cov billboard nyob nraum qaum ntuj lossis rau kev saib xyuas cov ntaub ntawv zoo li nyob rau hauv museum.
Standard vs. duv muaj chaw kawm nruab heat tiv thaiv UV rau kev siv nyob nraum qaum ntuj
Cov duab ntsuas kub tshaiv kub tuaj yeem pab tshav kub txhob puav tsaws, tab sis lawv feem ntau yuav phom kev ua haujlwm ntev thaum tshav kub rov qab ntev. Qhov zoo yog tias cov duab ntsuas muaj zav tshaiv UV tau muab ntau yam khoom siv tshiab uas pab nws nyob ntev dua ntawm kev tshaiv tshav kub. Thaum siv rau cov ntaub ntawv xov xwm, cov pa rooj tseg rau khaub ncaws lossis lwm yam uas raug tshav kub ntev, siv cov duab ntsuas muaj zav tshaiv UV no yuav pab ntau heev kom ntawv sau tuaj yeem saib pom zoo thiab lub ciam sib ntsim zoo ntev dua. Peb tau pom tias cov duab ntsuas no nyob ntev li 5 mus rau 10 zaug tshaj qhov tsim nyob ib leeg thaum tshaiv tshav kub ntev.
Qhov chaw nruj thiab qhov kev xaiv rau kev saib zoo: Zoo siab vs. Hnub ci
TxoJ Jplwb Ntsej Muag nrog Lub Qhov Roog Hlub thiab Lub Qhov Roog Ua Plhaub
Thaum pib mus rau kev kuaj xyuas, cov cuab meej hlau thiab tsis muaj cuab meej hlau txhua qhov muaj lub tswv yim sib txawv. Cov cuab meej hlau tuaj yeem ua rau los pom zoo dua thiab tsim tau qhov xim hlau, zoo li qhov chaw saib tshwj xeeb rau kev sau duab thiab kev lag luam. Yog koj xav tau dab tsi tsawg dua? Cuab meej hlau yog qhov koj xav tau. Nws muaj qhov smooth, tsis ntxuav qhov chaw ntxuav, uas ua rau ntau dua nyob rau hauv ntawv sau lossis thaum sau duab. Ob qho no txhua tus tua kom ntseeg tias lawv raug sau nrog kev lag luam, tab sis qhov kuv nyiam tshaj plaws yog tias lawv pab rau tus kws tshaj lij kos duab tau kho qhov kev saib xyuas raws li yam qhov chaw xav tau. Ib qho chaw tsuas yog xav tau kev cuab meej hlau, lwm qhov chaw xav tau kev ruaj khov.
KeV xyuas cov qhov chaw poob: Qhov chaw siab thiab qhov chaw tsis siab rau kev tshawb nrhiav thiab kev siv
Yam tseem nyab no tuaj yeem pab ntxiv qhov zoo ntawm sies, thiab ntxiv qhov loj ntawm daim duab, uas saum lub ntsiag tug yuav xav li cas. Tab sis muaj ib qho kev lag luam, yog tias cov hauv paus no feem ntau yuav rov qab tshwm sim rwb thaum muaj tsis tas li ntau. Tom qab ntawd, cov hauv paus matte feem ntau yuav tshem tshaib rwb tag, vim li no tus npeej yuav tsis muaj teeb meem saib nyob rau qhov chaw muaj tsis tas li ntau. Rau cov khoom uas xav tau kom peev txheej pom nws dua, xws li cov khoom muaj caij nyoog lossis cov duab nquag, ces hu rau cov hauv paus glossy tsis txhob ncig. Tab sis yog tias yeej tseem ceeb tshaj plaws yog peev txheej saib cov ntaub ntawv ntev, ces cov hauv paus matte yuav zoo dua. Xav txog cov luv luv xyoo nyob rau hauv qhov chaw pab pawg lossis cov luv luv kauv kev nyob rau sab nraud lub tsev ua haujlwm, uas peev txheej xav tau pom meej tag nrho lub sijhawm.
Kev Tshaib Daim Duam Thiab Kev Sau Saib Rau Cov Daim Duam Siv Ntau
Zaj duab thiab zaj duab tsis muaj kab ntsug yuav tiv thaiv tau zoo li cas liag rau keeb kwm, keeb kwm tsis zoo, thiab keeb kwm leeg uas feem ntau tshwm sim tsis paub txog li cas. Cov sib luag feem ntau yooj yim dua los saib xyaw los ntawm lawv cov hniav smooth, just grab a soft cloth and it comes right off. Cov duab tsis muaj kab ntsug muaj qhov tshwm sim kom pom meej dua ntawm keeb kwm, tab sis lawv tsis tas yuav saib xyaw zoo tagnrho rau tib neeg. Thaum siv ntau yam uas tau siv tag nrho lub sijhawm, xws li cov ID badges rau tus neeg ua hauj lwm, menus rau lub chaw nyob, lossis cov huab cua sib thooj rau lub tsev ua hauj lwm uas siv ntau, ob qho no yuav pab tiv thaiv qhov kev ua leej hnub nyob zoo tagnrho.
Cov zaj duab siv theej thiab kev ua tib yam zoo tshaj
Ntawv Pov Thawj Tshwj Xeeb: Loj Kawg, Siv Rau Ntawv Pov Digital, Thiab Qhov Surface Nyiam Nyob
Zib neeg tsim lub ntoo hlau rhaub rwb thiab tshuaj lom zib rau cov hlua siv tsis tuaj yam li no. Thaum siv rau cov khoom loj li ntawm hom phau ntawv loj lossis daim duab loj, qhov ntoo hlau rhaub rwb uas muaj ntau yam ntau dua yuav pab kom tsis muaj kab ntsug lossis tso tseg. Cov ntoo hlau rhaub rwb siv rau daim duab digital tau tsim los kom tsis pub tshuaj lom dhau, yog li tshuaj lom uas sau nrog yuav nyob ib chwntxwm thiab tshwm dav dav. Tom qab ntawd muaj ib qho ntxiv yog qhov ntoo hlau rhaub rwb uas muaj kev sib thaj siab, uas pab rau ntoo hlau rhaub rwb muaj kev sib thaj zoo li ntawm qhov cua sov. Neeg nyiam siv nws rau cov khoom tseem ceeb li ntawm phau ntawv luksus, daim duab luksus, lossis rau cov khoom siv rau kev lag luam. Qhov no txhais tau tias cov neeg ua haujlwm tuaj yeem nrhiav tau qhov lawv xav tau rau kev saib xyuas rau lawv cov haujlwm, thaum kuj tseem pab kom nws zoo nkauj thiab zoo rau kev sib thaj.
Ntoo hlau rhaub rwb kuaj tog rau cov khoom siv tsis txaus siab
Thermal films tsim nyog rau qhov txias hla tso caij los ntawm 180 mus 200 degrees Fahrenheit, uas ua rau lawv zoo rau cov khoom uas raug kev puas tsuaj nyob rau lub sijhawm thaub phiaj ntau. Cov films pab nyob no ua haujlwm zoo rau cov ntaub ntawv cuam tshuam, cov duab thiab ntawv xov xwm inkjet uas peb txhua tus paub, duab poj niam txiv neej uas muaj los ntawm kaum xyoo, thiab tseem yog ib qho chao synthetic paper stock. Qhov zoo tshaj plaws yog? Lawv sau nrog tag nrho yooj yim tsis tuaj yeem ua rau cov ntaub ntawv tshaib puas tsuaj. Cov neeg saib xyawj ntaub ntawv nyuj ncav nyuj qab no, thiab tseem yog cov kws tshaj lij tshaj duab thiab txhua tus neeg uas xav ruaj khov cov duab thiab ntawv uas tsis tuaj yeem tshaj tawm tau. Xav txog kev ruaj khov duab pov tseg tshaib tshiab los ntawm lub rooj vwj tshaib tshiab ntawm Niam Nkauj lossis ruaj khov cov ntaub ntawv kho mob tseem ceeb rau kaum xyoo tom ntej.
Thaum muaj kev sib thooj nrog koj lub thermal laminator model
Kev nrhiav kev pab cuam tshuaj lwm yooj yim los ntawm kev sib phim rau sab nraud uas sib xws nrog qhov koj cov khoom siv tsim kho. Muaj ntau yam yam ntxiv uas yuav tsum xav txog thaum sau ua film. Qhov kub yog ib qhov loj, vim tias ib qho twg kub tshaj qhov kub uas yuav tsum tau sib thooj, nws yuav tsis tsha tshwv txaus zoo. Ib qho twg yuav tsum tau kub dua li lwm qhov, yog li thaum siv nyob rau hauv qhov settings tsis raug, yuav ua rau kev sib thooj tsis zoo thiab yuav break los. Cov neeg tsim khoom feem ntau muab cov ntaub ntawv meej meej txog cov films sib xws, lawv qhov loj thiab cov caij nyoog sib xws. Kev xa lub sijhawm mus saib cov ntaub ntawv no yuav pab tiv thaiv cov kheej kheej kheej uas tsis zoo, tsim kev sib thooj zoo dua ntawm ib puag ncig, thiab tiv thaiv tus tshuab kom tsis txhob muaj kev puas tsuaj thaum siv ntev.
Txhob muaj cov pov, cov duab ntxoog, thiab qhov kho tawm nyob thaum siv txoj kev ntxuav
Thaum xub ntsuas, kom txoj kev tsim nyog zoo ib yam li kev siv tib yam, kom txo qhov tsis zoo. Lub paub yog tsum tau huv thiab tsis muaj dej lossis tshuab cua, thiab tseem tsum tau tshaib tag nrho rau sab nraud kom tsis muaj kab duav poob hauv. Siv cov chaw nrog lub rooj uas raug tshaj yuav pab tau, vim tias cov me me feem ntau tseem tso lub zog rau hauv qab uas teeb meem feem ntau pib. Tso tib lub zog thaum kawg ntawm qhov kev tsim. Yog tias muaj tus neeg tshaj pauv nrog, lub teeb li cas yuav tsis zoo, thiab cov hniav tsis yooj yim los nyob ib leeg. Thaum ua haujlwm nrog yam tseem ceeb, yog ib txwm daws tshuaj xyuas ntxiv rau ib qho chaw siv. Qhov no pab peb pom seb puas muaj kev txhim kho tshaj plaws rau qhov kev ua haujlwm no ua ntej mloog siv nyiaj thiab khoom siv.
FAQ
Cov rooj khib nyiab tsim nyog yog tsim los ntawm dab tsi?
Cov rooj khib nyiab tsim nyog feem ntau muaj ib thaj chaw polyester uas muaj zog thiab muaj ib chaw siv khwv uas tshaj tawm thaum muaj dej ntsuab.
Yog vim li cas tus ntau ntawm lub film lamination siv tau ntev?
Cov films ntau dua muaj kev siv tau ntev dua, tso kom zoo dua rau kev tig ntim thiab tig kub, thaum cov films me dua yog meej thaiv ntim kub.
Cov thermal lamination film tuaj yeem tshav tawm rau cov ntaub ntawv tsis pub los lawm?
Yog, tshpecially cov thermal lamination films uas muaj UV-resistant uas tsim los rau kev tshav tawm rau cov rays UV thiab tshav tawm rau kev los lawm.
Koj yuav xav pom tias yuav tsum muaj ntau npaum li cas rau cov ntaub ntawv uas neeg siv tas li tas sux xws li cov ID cards?
Rau cov ntaub ntawv uas neeg siv tas li tas sux, cov ntaub ntawv ntau xws li 7 mus rau 10 mil yog qhov xav pom los rau kev siv tas li thiab tig ntim.
Cov glossy lamination films yog tshaj tshav tawm rau cov fingerprints?
Cov glossy films feem ntau tshav tawm fingerprints nyau dua matte films thiab feem ntau yooj yim dua los saib xyuas.
Kuv yuav tsum xav txog dab tsi thaum xaiv thermal lamination film rau kuv laminator?
Xaiv lub film hliav, ntau, thiab lub teb nthuav duab uas xav tau los daws kom muaj kev raug rau rau kuv model laminator los tshavoid jams thiab seals tsis raug.
Daim Ntawv Qhia
- Yuav ua li cas thermal lamination film ua haujlwm thiab vim li cas nws tseem ceeb
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Cov Ntsiab Lus Txog Zog: Siab, Zog Dhau Kev Siv, Thiab Qhov Siv
- Ntsiagtxiv ntawv nplua nplai: 1.5 Mil, 3 Mil, 5 Mil, 7 Mil, thiab 10 Mil
- Qhov loj ntawm zib ntsuab thiab qhov ruaj: Sib piv 1.5 mil rau 10 mil kev ua haujlwm
- Sib piv lub thickness ntawm daim film thiab yam neej xwm yeem: Los ntawm kev muab tso rau hauv duab los mus rau daim ntawv tso tseg
- Qhov thickness cuam tshuam rau kev nyiag, kev nyiag siab, thiab kev siv nrog tshuab
- Kev Pab Txhim Kev Rho Tseg Thiab Kev Tiv thaiv Tsheej Xeeb rau Kev Siv Ntev
- Qhov chaw nruj thiab qhov kev xaiv rau kev saib zoo: Zoo siab vs. Hnub ci
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Cov zaj duab siv theej thiab kev ua tib yam zoo tshaj
- Ntawv Pov Thawj Tshwj Xeeb: Loj Kawg, Siv Rau Ntawv Pov Digital, Thiab Qhov Surface Nyiam Nyob
- Ntoo hlau rhaub rwb kuaj tog rau cov khoom siv tsis txaus siab
- Thaum muaj kev sib thooj nrog koj lub thermal laminator model
- Txhob muaj cov pov, cov duab ntxoog, thiab qhov kho tawm nyob thaum siv txoj kev ntxuav
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FAQ
- Cov rooj khib nyiab tsim nyog yog tsim los ntawm dab tsi?
- Yog vim li cas tus ntau ntawm lub film lamination siv tau ntev?
- Cov thermal lamination film tuaj yeem tshav tawm rau cov ntaub ntawv tsis pub los lawm?
- Koj yuav xav pom tias yuav tsum muaj ntau npaum li cas rau cov ntaub ntawv uas neeg siv tas li tas sux xws li cov ID cards?
- Cov glossy lamination films yog tshaj tshav tawm rau cov fingerprints?
- Kuv yuav tsum xav txog dab tsi thaum xaiv thermal lamination film rau kuv laminator?