Npaj los daws koj cov luam ntawv flexo luam ntawv thiab txhim kho cov khoom lag luam? Tshem tawm cov txheej txheem ntev tshaj plaws thiab txais tos ntau dua cov txheej txheem luam ntawv nrog peb cov duab kuaj mob thiab cov ntaub ntawv qhia daws teeb meem rau Flexo Luam Ntawv tsis xws luag.
Cov lus qhia no npog tau 15 hom flexo luam ntawv tsis xws luag, muab kev pom zoo rau koj kom tiv thaiv li cas, thiab daws cov teeb meem no ua ntej sib qhia.
Kev Lag Luam Txheej txheem cej luam
Flexo luam ntawv yog cov txheej txheem luam ntawv tseem ceeb rau kev ntim khoom, muaj nuj nqis rau ntau tshaj li 65%, muaj txiaj ntsig zoo tshaj plaws hauv 2023, tseem ceeb npaum li cas tseem ceeb rau kev lag luam siab zoo thiab ua kom muaj qhov tsis xws luag. Downtime tshwm sim los ntawm qhov tsis xws luag tuaj yeem cuam tshuam ntau yam cuam tshuam, siv cov tuam txhab luam ntawv mus txog $ 1,000 ib teev nyob rau hauv cov nyiaj tau los ploj lawm.
Yuav ua li cas siv daim ntawv qhia kev kuaj mob no
Peb yuav tshawb txog qhov tsis xws luag hauv kev luam ntawv. Rau txhua qhov tsis xws, peb yuav tham:
Cov Lus Qhia: Txheej txheem cej luam ntawm cov khoom siv flexo luam ntawv
| tsis xws luag | pom kev pom | lub ntsiab tseem | ceeb |
| Ntau dhau lawm tau txais | Dots loj dua li npaj | Tshaj dhau siab | Txo cov siab; Ntsuam xyuas Ink Viscosity |
| Iav Cim (Banding) | Hloov kev teeb thiab cov kab tsaus | Hnav Zog | Kev tu ib txwm thiab lubrication |
| Halo nyhuv | Xaub qab Ink Qhia Txog Cov Duab | Tshaj dhau siab | Kho Lub Neej Kheej - the-web ceev |
| Ua plaub | Number case kis tau dhau ntawm cov npoo | Ink Buildup | Cov ntaub qhwv huv si, kho siab |
| Pub dawb | Distorted screen dots nrog cov chaw zov me nyuam | Phaj lossis kheej kheej o | Siv cov kuab tshuaj-tiv taus Elastomer Tsho |
| Hla | Ploj lawm los yog ci ntu ntawm kev luam tawm | Xovxwm Kev Ntseeg | Tswj Ink viscosity, tshuaj xyuas xovxwm |
| Misregume | Xim thiab cov ntsiab lus yog misaligned | Phaj misalignment | Ua kom ntseeg tau tias cov duab sau npe kom raug |
| Mottled duab | Tsis xwm yeem xim ntom | Tsis zoo Ink Hloov | Huv huv anilox cov menyuam, kho cov xovtooj ntawm cov xovtooj |
| Sau rau hauv | Cov tswv yim zoo uas muaj cov number case tshaj | Cov teeb meem hloov pauv | Txo cov siab, saib xyuas kab viscosity |
| Tus phem | Cov qauv tsim txuas tau vim yog ink txeej | Kev siab siab | Lub teeb siab siab siab, kho cov kua hauv |
| Ntxias tawm | Cov me me ntawm cov pob me me ntawm lub substrate | Dirty Anilox Cov Menyuam | Ntxuav anilox cov menyuam, kho kom qhuav nrawm |
| Dirty Show | Speckles thiab av cov lus hauv number case | Tsis huv | Huv kom cov xovxwm cov xovxwm, tswj kav mem kua |
| Tsaug | Tsaus muag cov duab ua ke nrog tus thawj | Ink Tsim-Up | Cov ntaub qhwv huv si, txo cov kua txob tuab |
| Tus kab nqes | Ink smears nyob rau hauv lub substrate txoj kev taw qhia | Substrate swb | Kho Web Ntses, Txo Cov Siab |
| Voids | Unrinted gaps hauv daim duab | Number case | Tshem Tawm Pauv Cua Npaws, Huv Anilox Cov Menyuam |
15 Hom Flexo Luam Ntawv Tsis Txaus Siab
1. Kev nce toj ntau dhau
Yuav ua li cas txheeb xyuas:
cov dots hauv koj cov qauv tshwm sim loj dua li npaj, ua rau pom cov duab kom pom kev tsaus nti lossis tsawg dua.
Muaj peev xwm cuam tshuam:
ntev dhau lawm nce rot txo luam tawm cov ntaub ntawv thiab cov duab daws teeb meem. Qhov no yog cov teeb meem tshwj xeeb tshaj yog cov ntawv sau daws teeb meem lossis cov ntsiab lus zoo. Raws li cov ntaub ntawv kev lag luam, ntau dhau lawm teev tau nyiaj rau ze li 25% ntawm Luam Cov Lus Hais Tsis Txaus Siab hauv Flexo Luam Ntawv.
Muaj peev xwm ua rau:
Kev kub siab nruab nrab ntawm lub tshuab luam ntawv thiab substrate.
O ntawm cov phiaj, feem ntau tshwm sim los ntawm kev txhoj puab heev lossis cov kuab tshuaj.
Tsis raug tshuaj enk viscosity los yog ntau heev anilox cell.
Yuav ua li cas thiaj ua kom zoo:
Txo cov tshuab luam ntawv siab rau ib qho 'nwj ' kev xav.
Hloov mus rau hauv-cov-puag ncig (itr) Elastomer Tsho kom txo qis o.
Kho anilox ntim thiab kua mem kua viscosity.
Kev Ua Haujlwm Zoo: Dot Muaj Qhov Siv Tau
| Parameter | Optimal |
| Luam ntawv siab | 'Hnia ' qhov kev xav, tsawg kawg nkaus |
| Anilox ntawm tes | Muaj pes tsawg, raws li cov number case |
| Ink viscosity | Xwm yeem thiab tsim nyog |
2. Cov iav cim (banding)
Yuav ua li cas txheeb xyuas:
Saib rau lwm txoj hlua ntawm lub teeb thiab tsaus uas khiav txiav rau lub substrate lub vev xaib.
Muaj peev xwm cuam tshuam:
cov cim iav cuam tshuam kev sib txuam ntawm cov luam tawm, ua rau nws saib tsis zoo. Lawv feem ntau audible thaum cov txheej txheem luam ntawv thiab yog qhov tseem ceeb ntawm kev pom tsis zoo, suav nyiaj rau 18% ntawm Flexo Sau tej yam tsis xws luag.
Muaj peev xwm ua rau:
Yuav ua li cas thiaj ua kom zoo:
Tsis tu ncua tshuaj xyuas thiab hloov cov zog hnav.
Xyuas kom meej lubrication kom tiv thaiv tau cov iav hnav.
Kho cov chaw siab kom tsis txhob muaj kev hnav ntau dhau ntawm cov tshuab kho tshuab.
3. Halo nyhuv
Yuav ua li cas txheeb xyuas:
Ink tshwm sim dhau ntawm cov phiaj xwm luam tawm, tsim ib qho 'halo ' nyob ib ncig ntawm tus qauv.
Muaj peev xwm cuam tshuam:
halo qhov teebmeem ua cov luam tawm zoo li plooj lossis smeared, tshwj xeeb yog ib ncig ntawm ntug. Qhov kev tsis haum no yog teeb meem tshwj xeeb hauv High-txhais Flexo Luam Ntawv.
Muaj peev xwm ua rau:
Yuav ua li cas thiaj ua kom zoo:
Txo cov tshuab luam ntawv.
Kho lub tog raj kheej-rau-web ceev kom ntseeg tau tias muaj kev tsim nyog.
Txheeb xyuas tus lej hloov chaw thiab hloov kho yog tias tsim nyog.
4. Feathering
Yuav ua li cas txheeb:
Ink kis tau dhau ntawm cov chaw luam ntawv, zoo li cov plaub hau projections ntawm ib tug noog.
Muaj peev xwm cuam tshuam:
feathering txo cov duab ua kom zoo nkauj, muab cov ntawv luam tawm ib qho tsis muaj ntsej muag. Nws yog tshwj xeeb tshaj yog nyob rau hauv kev ua haujlwm zoo lossis cov ntawv nyeem me.
Muaj peev xwm ua rau:
Ntau dhau ntawm lub tog raj kheej thiab substrate.
Ink Toolup nyob ib ncig ntawm dots.
Cov ntaub ntawv qias neeg duab lossis cov khib nyiab ntawm lub substrate.
Yuav ua li cas thiaj ua kom zoo:
Ntxuav cov duab cab thiab substrate tsis tu ncua.
Kho cov chaw siab kom tsis txhob cuam tshuam.
Xyuas kom meej tias ink viscosity yog kev sib npaug los tiv thaiv kev tsim.
5. DONTS
Yuav ua li cas txheeb: Tshuaj ntsuam cov:
Kev tshuaj ntsuam qoo tshwm thiab distorted, nrog seem lossis ib nrab ntawm cov chaw nruab nrab, zoo li donuts.
Muaj peev xwm cuam tshuam:
Donut-puab-puab zoo li tsis xws luag cov duab uas cuam tshuam, txo qis luam ntawv zoo. Qhov kev tsis haum no yog ntau dua yuav tshwm sim nrog cov ntxaij vab tshaus finer thiab cov ntsiab lus me.
Muaj peev xwm ua rau:
O ntawm lub tog raj kheej lossis phaj, feem ntau tshwm sim los ntawm kev txhoj puab heev thiab cov kuab tshuaj.
Inconentent Ink hloov chaw.
Yuav ua li cas thiaj ua kom zoo:
Siv cov kuab tshuaj-tiv taus Elastomer Tsho.
Kos lub tog raj kheej thiab phaj kev ncaj ncees tsis tu ncua, hloov cov khoom hnav raws li xav tau.
6. Hla
Yuav ua li cas txheeb xyuas:
Ntu ntawm cov ntawv luam tawm yog ib qho kev kaj dhau lossis ploj tag nrho.
Muaj peev xwm cuam tshuam:
hla tawm cov txiaj ntsig hauv cov luam tawm tsis tiav, uas yog tshwj xeeb tshaj yog kev puas tsuaj rau cov xim loj lossis cov qauv txuas ntxiv.
Muaj peev xwm ua rau:
Deeg lossis misalignment hauv xovxwm tshuab tshuab.
Ink viscosity los yog pH cov teeb meem.
Bent shaftts lossis sab nraud ntawm cov khoom sib tw.
Yuav ua li cas thiaj ua kom zoo:
Soj ntsuam cov tshuab tshuab thiab xyuas kom meej tag nrho cov khoom siv tau ua raws.
Saib xyuas cov memery tsis sib xws kom tsis txhob luam tawm tsis raug.
Kos rau thiab tshem tawm kev co hauv cov xovxwm.
7. MisRegub
Yuav ua li cas txheeb:
xim lossis cov qauv tsim tsis ua kom haum, ua rau plooj lossis ua kom tawg.
Muaj peev xwm cuam tshuam:
Misregistregistration yog ib qho ntawm cov kev pom zoo tshaj plaws, tshwj xeeb tshaj yog nyob rau hauv multicolor luam ntawv. Nws cuam tshuam hnyav rau qhov precision ntawm cov khoom kawg.
Muaj peev xwm ua rau:
Yuav ua li cas thiaj ua kom zoo:
Nquag ntsuas thiab kho ua ntej daim phiaj ua ntej luam ntawv.
Tswj kev ruaj ntseg web nro kom tsis txhob txav chaw thaum lub sijhawm luam tawm.
Hloov hnav cov khau thooj voos kheej lossis cov phiaj los tiv thaiv kev ua txhaum cai.
8. Mottled duab
Yuav ua li cas txheeb xyuas thaj tsam:
thaj chaw muaj xim tau pom cov kev sib txawv hauv kev luam tawm ntom ntom thiab xim xim.
Muaj peev xwm cuam tshuam:
lub ntsej muag mottled ua rau kev luam tawm saib tsis ncaj thiab tsis sib xws. Qhov tsis haum no yog ib qho twg hauv kev ntim luam ntawv, qhov twg cov thaj chaw muaj xim xim loj.
Muaj peev xwm ua rau:
Yuav ua li cas thiaj ua kom zoo:
9. Fias nyob rau hauv
Yuav ua li cas txheeb xyuas:
Cov ntsiab lus zoo tsis pub dhau cov ntawv sau ua cov mem kua, ua rau cov duab tawg dhau, cov duab tsawg.
Muaj peev xwm cuam tshuam:
sau rau hauv tuaj yeem thuam qhov zoo ntawm cov qauv kev tsim qauv lossis cov ntawv nyeem zoo, ua rau lawv nyeem tsis tau lossis tsis paub txog.
Muaj peev xwm ua rau:
Yuav ua li cas thiaj ua kom zoo:
10. Bridging
Yuav ua li cas txheeb:
Cov ntsiab lus tsim uas yuav tsum nyob nyias sib txuas
Vim tias muaj number case dhau los, tsim kev sib txuas uas tsis tau sib txuas.
Muaj peev xwm cuam tshuam:
Bridging ua rau poob ntawm kev nthuav dav thiab tuaj yeem cuam tshuam qhov npaj tsim.
Muaj peev xwm ua rau:
Yuav ua li cas thiaj ua kom zoo:
11. Pickholing
Yuav ua li cas txheeb xyuas:
Cov me nyuam tsis raug, zoo li pinholes, tshwm sim nyob rau ntawm substrate.
Muaj peev xwm cuam tshuam:
pinholing cuam tshuam cov xim luam tawm thiab yog qhov tshwj xeeb tshaj yog pom nyob hauv cov xim loj.
Muaj peev xwm ua rau:
Yuav ua li cas thiaj ua kom zoo:
12. Datty Sau
Yuav ua li cas txheeb:
specks, av, lossis hmoov av yog embedded nyob rau hauv number case, tsim ib tug qias neeg lossis deekled tsos.
Muaj peev xwm cuam tshuam:
qias neeg luam tawm cov duab zoo thiab yog tshwj xeeb tshaj yog kev puas tsuaj hauv cov chaw siab, xws li cov khoom lag luam uas ntim khoom lossis ntim khoom.
Muaj peev xwm ua rau:
Yuav ua li cas thiaj ua kom zoo:
13. Ghostinging
Yuav ua li cas txheeb xyuas:
ib daim duab tsaus muag, theej tawm ntawm ib sab ntawm cov ntsiab lus sau.
Muaj peev xwm cuam tshuam:
gooseing tsim kev cuam tshuam, tsis muaj neeg tsis ua haujlwm, tshwj xeeb tshaj yog nyob rau hauv cov ncauj lus kom ntxaws lossis cov ntawv luam tawm los yog multicolored.
Muaj peev xwm ua rau:
Yuav ua li cas thiaj ua kom zoo:
14. Surrring
Yuav ua li cas txheeb xyuas:
number cask nqus lossis liam nyob rau hauv cov kev taw qhia ntawm substrate lub zog, tsim cov duab slurred.
Muaj peev xwm cuam tshuam:
slurrring txo cov duab pom tseeb, ua kom zoo cov lus qhia nyuaj nyeem.
Muaj peev xwm ua rau:
Yuav ua li cas thiaj ua kom zoo:
15. Voids
Yuav ua li cas txheeb xyuas:
Unprinted khoob lossis voids tshwm hauv daim duab, tsim cov ntawv luam tsis sib xws.
Muaj peev xwm cuam tshuam:
voids kev txiav txim siab ncaj ncees ntawm kev luam tawm ntawm cov luam tawm, ua kom nws tsis haum rau cov khoom lag luam kawg.
Muaj peev xwm ua rau:
Yuav ua li cas thiaj ua kom zoo:
Kev Qhia Dav Dav Rau Kev Zam Kev Luam Ntawv Tsis Txaus
Flexographic luam ntawv tsis xws tuaj yeem cuam tshuam kev tsim khoom thiab hloov kho kom zoo. Txhawm rau txo cov teeb meem no, ua raws li phau ntawv qhia no rau kev tiv thaiv cov khoom tsis xws hauv Flexo luam ntawv.
1. Tswj xyuas lub tshuab luam ntawv zoo
Vim li cas: ntau dhau ntawm cov phaj, kheej kheej, kheej kheej, thiab substrate yog ib qho ua rau muaj kev cuam tshuam zoo li dot nce, halo, thiab feathering.
Kev daws: Siv ib qho 'hnia ' cov txheej txheem ntawm cov neeg siv tau, qhov twg lub phaj maj mam hu tau lub substrate. Tsis tu ncua kuaj xyuas thiab ntsuas qhov chaw siab kom tsis txhob muaj kev xav zoo.
2. Xyuas kom ruaj khov ua paug thiab qib
Vim li cas: Ink tsis raug tshuaj particosity tuaj yeem ua rau muaj kev cuam tshuam ntau dhau, mottling, thiab pottling, thiab potting pH cov qib yuav cuam tshuam rau cov kab mob yuav cuam tshuam thiab xim sib xws.
Kev daws: Kev saib xyuas ib txwm saib thiab kho cov kua mem kua viscosity thiab qib pH thaum lub sijhawm luam tawm. Siv viscosity Meters thiab kom ntseeg tau tus number case tau sib xyaw kom zoo.
3. Nquag ntxuav anilox chais
Vim li cas: qias neeg los yog txhaws cov menyuam roj av ua rau cov teeb meem hloov pauv, ua rau muaj kev hloov pauv, ua rau cov duab tsis zoo, thiab cov tshuab qias neeg.
Kev daws: Siv sijhawm tu lub sijhawm tu ib hnub no rau cov menyuam yaus lub menyuam siv cov kev daws teeb meem
4. Calibrate thiab dlej luam ntawv phaj
Vim li cas: misaligned lossis tsis zoo daim phiaj yuav ua rau kev ua tsis ncaj, plooj taub hau, thiab xim hloov.
Kev daws: Xyuas kom meej meej cov kev sib nciab thiab kev sau npe ntawm cov paib ua ntej luam ntawv. Siv cov txuj ci siab thiab cov cuab yeej muaj tseeb los lav cov kev ua kom raws li cov xim thiab tsim qauv.
5. Soj ntsuam thiab tswj lub zog thiab cov khoom siv xovxwm
Vim li cas: hnav los yog cov roj ntsha uas tsis raug cai tuaj yeem ua rau cov cim iav lossis banding, ua rau tsis muaj qhov tsis zoo.
Kev daws: Ua kev tu xyuas tsis tu ncua ntawm cov zog thiab lwm yam xovxwm yam. Ntub txav chaw, kos rau hnav, thiab hloov cov zog hnav-tawm.
6. Saib xyuas substrate zoo thiab kev nyiam huv
Vim li cas: cov hnoos qeev ntawm lub substrate, xws li plua plav lossis cov khib nyiab, tuaj yeem ua rau tsis xws luag cov ntawv luam thiab ua plaub hau.
Kev daws: Muab cov khw hauv dej huv, ib puag ncig dawb. Soj ntsuam substrates ua ntej luam ntawv thiab xyuas kom lawv tsis muaj cov khib nyiab ntawm cov chaw saum npoo.
7. Siv cov kuab tshuaj-tiv taus Elastomer Tsho
Vim li cas: o ntawm cov phaj los yog thooj voos kheej kheej vim yog raug rau inks nruj thiab cov kuab tshuaj tuaj yeem ua rau tsis xws luag thiab txhaws.
Kev daws: Hloov mus rau cov kuab tshuaj-tiv taus Elastomer Tsho, uas tsis tshua muaj txhij rau o thiab tswj qhov seem ruaj khov raws sijhawm.
8. Tswj Lub Web
Vim li cas: kev tsis txaus siab lub vev xaib yuav ua rau tsis muaj kev ua txhaum, kev iab liam, lossis hla kev puas tsuaj lossis kev cog lus tsis xwm yeem.
Kev daws: Xyuas kom meej tias lub vev xaib nruj sib xws nyob thoob plaws cov luam tawm. Siv Tension tswj cov tshuab los soj ntsuam thiab kho kom nruj npaum li xav tau.
9. Ua kom muaj qhov zoo dua kom qhuav
Vim li cas: tsis raug qhuav nrawm nrawm tuaj yeem ua rau tsis xws luag zoo li pinhoce, feathering, thiab tsis zoo nyob rau hauv mem kua adhesion.
Kev daws: kho lub ziab ceev kom phim rau hom mem kua thiab substrate. Ua kom ntseeg tau tias txoj kev ua kom zoo thiab kub kom tsis txhob muaj qhov ziab nrawm lossis ziab qeeb.
10. Siv cov xovxwm tu
Vim li cas: Flexo Presses yog cov tshuab uas yuav tsum muaj kev tu cev kom tiv thaiv cov teeb meem kev kho tshuab uas ua rau muaj qee yam.
Kev daws: Tsim cov sij hawm saib xyuas ib txwm muaj uas suav nrog lubrication, kev tu, thiab kev ntsuas kom haum thiab tiv thaiv kev xav tsis zoo.
Tag
Flexographic kev luam ntawv tsis xws luag, tab sis nrog ceev faj kev soj ntsuam thiab kev saib xyuas ua haujlwm, feem ntau cov teeb meem tuaj yeem tiv thaiv lossis raug kho. Los ntawm kev nkag siab no 15 hom flexo luam ntawv tsis xws luag, lawv tuaj yeem txhim kho cov luam ntawv zoo, txo qis qis, thiab txhim kho kev tsim khoom.
Muaj kev nyuaj los yog daws teeb meem ntawm flexo luam ntawv tsis xws luag? Peb nyob ntawm no pab. Peb cov kws tshaj lij yog npaj tau muab cov lus qhia thiab txhawb nqa koj txhua lub sijhawm. Tiv tauj peb kom tau txais kev txhawb nqa kev tshaj lij thiab ua tiav!
:
1. Dab tsi ua rau muaj kev cuam tshuam ntau dhau hauv Flexo Luam Ntawv?
Qhov ntau dhau lawm nce tau feem ntau tshwm sim los ntawm ntau dhau ntawm lub tshuab luam ntawv thiab lub substrate. Lwm yam tseem ceeb suav nrog ink tsis muaj kuab, cov phiaj o, thiab muaj lub zog anilox. Txo qhov siab thiab saib xyuas number case sib xws tuaj yeem pab tswj cov lus tau nce.
2. Kuv tuaj yeem kho cov iav iav li cas lossis banding ntawm kuv cov ntawv luam?
Cov cim iav (banding) feem ntau yog qhov tshwm sim los ntawm cov khoom hnav lossis hnav tsis zoo. Kev tu ncua, tsim nyog lubrication, thiab kho tshuab luam ntawv siab tuaj yeem txo qhov tshwm sim ntawm cov tsis xws luag. Soj ntsuam lub zog rau hnav thiab hloov lawv thaum tsim nyog kuj tseem ceeb.
3. Dab tsi yog qhov ua rau muaj lub Halo nyhuv rau hauv Flexo Luam Ntawv?
Lub Halo nyhuv feem ntau tshwm sim los ntawm ntau dhau ntawm lub tshuab luam ntawv lub tog raj kheej, ua rau tsis muaj qhov sib kis dhau ntawm kev tsim qauv. Txo lub siab thiab ua kom zoo rau lub tog raj kheej-rau-web ceev cov txheej txheem yuav feem ntau daws cov teebmeem no.
4. Kuv yuav ua li cas tiv thaiv tsis tau tus phooj ywg ua rau kuv luam tawm?
Feathering tshwm sim thaum number case kis dhau ntawm thaj chaw uas tau npaj tseg, feem ntau vim yog ntau dhau los yog cov dej qias neeg. Txhawm rau tiv thaiv qhov no, kho lub siab, ntxuav cov duab cab, thiab xyuas kom meej tias lub substrate yog pub dawb los ntawm cov khib nyiab.
5. Dab tsi tuaj yeem ua rau kev ua tsis ncaj rau hauv Flexo Luam Ntawv?
MISREGITUULT yog tshwm sim los ntawm kev ua raws li kev luam ntawv ntawm cov ntawv luam tawm, tsis sib haum lub vev xaib nruj, lossis hnav rau cov thooj voos kheej kheej. Txhawm rau txhim kho qhov no, daim paib recantibrate, xyuas kom tsim nyog rau lub vev xaib kom zoo, thiab hloov khaub ncaws zoo nkauj rau thooj voos kheej lossis cov phiaj.
6. Kuv tuaj yeem tshem tawm cov kev puas tsuaj pinholing rau kuv cov luam tawm li cas?
Pinholing yog feem ntau tshwm sim los ntawm cov menyuam anilox qias neeg lossis kua mem kom qhuav sai sai. Ntxuav lub anilox chais huv si, kho cov kua paug viscosity, thiab maj nrawm ziab kom txhim kho Ink hloov mus thiab tshem tawm pinholes.
7. Cov kauj ruam twg kuv tuaj yeem ua rau txo cov ntawv luam tawm qias neeg hauv Flexo Luam Ntawv?
Cov ntawv luam tawm tsis huv feem ntau yog los ntawm kev paug ib yam li hmoov av, av, lossis ziab khaub ncaws taub hau. Nquag ntxuav cov xovxwm cov khoom siv, tswj hluav taws xob zoo, thiab khaws cov chav huv si hauv chav kom tsis txhob muaj qhov xwm txheej no.
