Kub Lub Ntsws Tshem Tawm: Flexographic Printing
Peb yog ib lub tuam txhab luam ntawv loj hauv Shenzhen Tuam Tshoj. Peb muaj cov phau ntawv luam tawm, phau ntawv xov xwm luam ntawv, phau ntawv luam ntawv, phau ntawv nyuaj, phau ntawv luam tawm, phau ntawv luam tawm, phau ntawv luam tawm, lub thawv ntim, daim qhia ntawv, txhua yam ntawm PVC, cov ntawv luam tawm, ntawv sau cia, hom tshwj xeeb ntawv xim luam tawm khoom, kev ua si cardand li ntawd.
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Niaj hnub no, cov ntawv luam tawm flexo fim nce kev sib tw, yog li lawv txhua tus txav mus rau hauv lub khw muag khoom muag. Lub shrink lub cim npe yog tshiab thiab muaj kev loj hlob zoo. Nws tseem txawv ntawm lub khw muag khoom, uas feem ntau kuj tsis tshua yooj yim thiab koom nrog, yog li tiv thaiv cov tuam txhab tshiab los koom nrog kev sib tw. Cov tshuab luam ntawv flexo luam tawm tau pib siv cov cuab yeej thev naus laus zis, xws li: cov khoom siv nyiaj thiab cov khoom tshiab, uas yuav tsum tuaj yeem loj hlob ntawm tus nqi ntawm xya rau kaum feem ntawm ib xyoos twg, uas yog kev dav dav rau plaub feem pua ntawm tsib feem pua. Lub lag luam siab.
Cov khoom siv thiab cov khoom siv khiab zeej yuav cia siab rau kev tsim khoom ntim cov neeg tuaj muag, uas qhib qhov rooj rau cov lag luam me me thiab nruab nrab. Kev lag luam kev noj zaub mov ntawm cov khoom noj, cov zaub mov organic, thiab cov khoom noj haus huv, thiab cov kev cai lij choj ntawm US Food and Drug Administration, tau nce kev lag luam hauv kev lag luam.
Raws li kev lag luam txheeb los ntawm Bethesda Kev Lag Luam Kev Lag Luam hauv Maryland, tag nrho cov nqi ntawm cov yeeb yaj duab siv nyob rau hauv lub zos shrink label cov lag luam nyob rau hauv 2003 yog 49 txog 53 lab (txog 300 lab Teb Chaws Asmeskas las). Gravure luam ntawv nyob hauv lub lag luam no, thiab nws tau kwv yees tias tsuas yog 15% ntawm cov ntawv lo rau shrink sau ua flexo.
Thaum twg thiaj li nkag mus rau tom khw ntawv
Patented zaub mov thiab cov khoom siv hauv cheeb tsam muaj tam sim no nce, uas ua kom muaj ntau hom kev tswj cov khoom lag luam. Qhov teebmeem tshwm sim no tau ua rau cov ntawv ntsaws npe ua haujlwm ua haujlwm nrog kev lag luam luam tawm, uas yog tseem luv luv. Qhov zoo ntawm cov luam ntawv luam tawm tsis tau zoo xwb, tab sis nws cov nqi ua ntej yuav raug nqi qis tshaj qhov kev luam ntawv, uas yog ib qho tseem ceeb tshaj plaws rau kev luam cov ntawv luam tawm nyob rau hauv lub khw muag khoom.
Yog tias koj tab tom npaj nkag mus rau lub tshav pob tom khw, thov saib cov ntaub ntawv tshawb fawb txog kev lag luam. Nws tau kwv yees tias lub ntim ntawm luam tawm yog 40 lab square inches los yog tsawg tshaj, yeej muaj kev sib tw nrog vov; yog hais tias qhov ntim ntau tshaj 40 lab square inches, nws yuav yeej nrog ib tug dav yob. (saib daim duab 1)
Yog hais tias siv 40-inch wide lus tshaj tawm, qhov nyiaj tau thiab qhov tsis zoo ntawm kev siv tshuab luam tawm dav dav thiab luam tawm gravure yog li 500,000 meters. Tus xov tooj no nyob ntawm ntau yam, nrog rau kev siv cov cuab yeej cuab tam thiab cov nqi ntawm kev hloov chaw.
Ob qho kev lag luam
Lub lag luam shrink labeled kev lag luam yog muab faib ua ob qho kev lag luam: cov cua ntswj tub raj thiab cov kav poom. Ob leeg tau sau ua flexo thiab qhov zoo yog qhov zoo xwb.
Lub transverse shrinkage yam ntxwv ntawm zaj duab xis yog xa mus rau TD. Ua ntej, cov zaj duab xis ntsaws yog traversed hla lub dav sab ntawm lub yob los tsim ib lub puab tubular uas fits thoob lub thawv. Zaj paj huam ces heats tuaj thiab shrinks laterally, thiab cov zaj duab xis adheres rau lub thawv.
Cov yam ntxwv ntawm cov longitudinal positioning ntawm lub nplhaib-puab zaj duab xis yog hu ua MD, uas txhais tau hais tias cov zaj duab xis shrinks longitudinally thaum rhuab. Cov cua ntsawj ntshoo tshuab raj yuav tsum muaj cov txhab txiag nplaum uas yuav nqus cov ntawv lo rau cov ntawv sau rau cov khoom siv sib piv, thaum lub nplhaib-thiab-ua tshuab tsis tau.
Zaj duab xis thiab cov khoom siv casing
Feem ntau, thaum luam ntawv nrog ib zaj duab xis tsis tau muab, kev nruj tswj tsis tau zoo dua nrog lub siab ntsim siab. Qee cov tshuab luam ntawv los yog cov lag luam uas tau txiav txim siab khiav lag luam hauv kev lag luam yuav tsis hloov cov ntawv shrink.
Yuav kom sau cov ntawv sau zoo, ntxiv rau teeb meem tsis sib haum, thermal tswj kuj yog qhov tseem ceeb tshaj. Cov xov xwm luam tawm yuav tsum muaj lub siab kub dissipation muaj peev xwm tiv thaiv cov duab los ntawm shrinking thaum lub sij hawm luam ntawv. Thermal fais fab yog tus yeeb ncuab biggest yeeb yaj kiab ntawm lub yeeb yaj kiab, yog li siv tag nrho cov kev ntsuas los tiv thaiv cov duab los ntawm overheating. Lub cim tshiab ntawm kev sib sau sib tov sib xyaw cov khib nyiab rau dissipate cua sov thaum lub sij hawm luam ntawv.
Cov txheej txheem yuav tsum tau koom nrog cov khoom siv. Cov cuab yeej ua ke tuaj yeem tsim daim ntawv tais dav hlau mus rau hauv lub qhov cub thiab tom qab ntawd cov khoom ntawm qhov overlapping (tsim cov interface). Tom qab, muab lub tsho npog rov qab tso rau hauv qhov chaw.
Raug kev sib tshuam thiab kev saib xyuas kev tsim khoom yuav tsum muaj kev ua haujlwm ntau. Nyob hauv txoj kev koom txheej, yog tias cov kauj ruam tseem ceeb ua yuam kev, qhov ua yuam kev tau qeeb ntawm qhov txheej txheem tom qab. Cov feem uas yuav tsum tau koom yuav tsum tau muab ntxuav los ntawm tus number case thiab cov kab mob kom tus nplaum yuav tuaj yeem sib cog tau. Kev tsim cov txheej txheem ntawm kev sib koom tes yuav tsum tau saib xyuas txog 100% los tiv thaiv cov duab los ntawm blasting li nws shrinks ntawm lub thawv.
Cov cuab yeej ua ke ntawm 40,000 rau ntau tshaj 200,000 USD, thiab tus nqi ntau dua nrog kev tswj xyuas. Yog tias qhov ntsuas cov cuab yeej yuav tau muab cais, yuav tsum tau ntxiv 30,000 txog 50,000 tus nqi nyiaj US.
Cov khoom ua cim
Hauv txawb khoom, tus txheej txheem ntxiv rau daim ntawv luam tawm yog ntim. Txawm hais tias qee lub hnab ntim cov ntawv lag luam, tab sis feem ntau siv cov khoom cim npe tshwj xeeb cim rau daim ntawv lo ntawm cov tais diav. Cov cuab yeej siv cov cuab yeej yuav pib them mus txog $ 500,000.
Lub tshuab ntaus cim yuav qhib cov yeeb yaj duab txuas, punctures lub qhov (yog xav tau), hla hla daim ntawv thiab muab tso rau ntawm lub khob. Thaum tshav kub kub ntawd kis los ntawm vapor, hluav taws xob los yog cov pa roj compressurized los ua kom cov yeeb yaj kiab tiv thaiv lub thawv.
Lub voj-hom zaj duab xis yog ib qho khoom siv uas muaj lub npe ntawm lub thawv. Sib txawv technologies yuav tsum tau txawv cov nplaum thiab cov thermostats. Txij li thaum lub siab ua ntawv thov rau lub nplaum ntawm zaj duab xis mus rau zaj duab xis kev sib txuas lus thaum lub sij hawm ntswj, yuav tsum tau kub qhuav nplaum (qee zaum, qhov hnyav hom nplaum yuav tsum tau). Nyob rau hauv lub dhau los, nws yog qhov zoo los siv tsawg-shrinkage UV adhesives thaum tsawg shrinkage yog xav tau, tab sis nyob deb ces muaj ob peb tus qauv zoo.
Tej zaum, tsuas yog cov substrate uas yuav siv tau raws li ib lub suab paj nruag-puab hnub no yog polypropylene. Vim yog nws qhov 20% shrinkage txwv, kub-yaj ua tau zoo, thaum hnyav raws li adhesives wrinkle polypropylene. Vim tias qhov kub siab kub ntawm polypropylene, cov roj pressurized ntsws shrinking ntsuas kub yog qhov ntsuas kub uas nws tsuas yog siv vim nws tuaj yeem ncav cuag dua kub dua li ntawm lub khob haus tshuaj.
Ntau cov duab films ntxiv mus rau hauv kev lag luam, thiab cov kab xev ua kom hnyav yuav tsum thev qhov sib zog ntawm qhov kev sib tshuam.
Cov tshuaj shrinking tshuaj
Qhov xim ntawm txoj hlua ntawm txoj hlua khauj khaum kuj yog ib qho tseem ceeb hauv daim ntawv. Qhov ua tau zoo uas lub qhov xaum xoom rau ntawm lub thawv nyob ntawm lub coefficient ntawm kev sib txhuam. Cov tshuaj qaub ncaug ob peb cuaj caum yog tsim rau kev luam cov ntawv luam tawm.
Ib puag ncig cov phooj ywg hauv cov dej muaj peev xwm ua kom muaj ntau tshaj 40%, muaj saj zawg zog, thiab raug nqi tsawg dua UV dua. Tsis tas li, feem ntau ntawm tus cwj mem ntawm tus cwj pwm tsis tshua muaj kev cuam tshuam los ntawm kev txav ntawm cov xaim hluav taws xob hauv cov tshuaj chemicals.
Cov phom sij hauv cov dej muaj ntsis zoo ib yam li cov dej uas muaj kuab zoo thiab muaj lub siab elasticity thiab ua rau ntau tshaj 40%. Lub sij hawm so qhuav yuav tsum tau hnyav rau hauv cov phom sij uas tsis tshua muaj kev cuam tshuam los ntawm cov dej noo, tab sis nws yog ib qho cuam tshuam los ntawm kev txav ntawm cov xaim hluav taws xob hauv cov tshuaj chemicals. Qhov hnyav hauv qab muaj qhov ua tau zoo tshaj plaws rau feem ntau cov yeeb yaj duab.
UV dawb radical inks kho sai, thiab cov phev uas yog inhibited ntawm cov pa tsis dua noo noo. Feem ntau, nws qhov qis yog tsawg dua 20%. Nyob hauv qee qhov substrates, qhov adhesion yog tsawg. Atomic zog hauv cov tshuaj yuav tshwm sim rau ntawm tus cwj mem. Ob tug dawb radical inks yog tam sim no muaj nyob rau hauv kev ua lag luam:
UV siv tus neeg lub siab xav kom nqus ultraviolet lub teeb kom pib qhov txheej txheem tawv ncauj.
Cov nqaj hlau electron ua rau lub polymerization uas tshem tawm cov kev siv ntawm cov neeg nti.
UV cationic inks tsim ua tiav rau ntau yam ntawm cov substrates, nrog rau cov nqi sib zog ntau tshaj 40%. Qhov no tus cwj pwm mob nyhav dua. Ntxiv mus, tus number case hardens yuav luag instantly, thiab atomic zog ntawm cov tshuaj molecules tsawg dua, tab sis tus nqi tseem kim tshaj UV radical inks.
Cov tswv yim tsim qauv
Tus qauv tsim ntawm daim ntawv lo shrink yuav tsum coj mus rau hauv tus account lub duab ntawm lub thawv. Sim tsis txhob muab cov duab tseem ceeb tso rau hauv ib qho chaw uas muaj kev txav siab. Lwm txoj hauv kev xav txog yog qhov uas yuav tso qhov barcode. Bar codes feem ntau luam tau vertically los tiv thaiv cov duab distortion thiab cuam tshuam cov sketching.
Cov kev pabcuam hauv computer tuaj yeem txhais cov duab thim rov qab, tab sis nco ntsoov tias qee qhov xwm txheej (tshwj xeeb tshaj yog qis qis luam ntawv), cov duab thuam cov duab tsis zoo.
Txog shrink zaj duab xis
Raug zaj duab xis thicknesses yog hauv qab tsib caug microns (ib txhiab ib nti). Hauv ob peb lub xyoo dhau los no, ib tug thinner shrink film ntawm tsuas yog 40-45 microns tau pib. Cov ntawv sau ntawm cov khoom siv los ntawm lub chaw ua haujlwm ntawm lub tuam txhab txiav txim siab seb puas muaj laj thawj txaus siab ua kom pom tau. Feem ntau, daim ntawv qhia tuam txhab uas muag yuav cia siab tias yuav tsum tau qis qis qis hauv cov yeeb yaj duab ntawm cov nqi ntau dua.
Txawm hais tias tus ntsws zaj duab xis yog tsim los ntsws nyob rau hauv ib qho kev taw qhia tshwj xeeb, muaj me ntsis shrinkage nyob rau hauv lub rov qab coj. Txij thaum lub tshuab zaj duab xis yog rhiab kom sov, kev tu xyuas yuav tsum tau ceev kom qhov kub ntawm cov kauj ruam khaws cia, khaws cia, thiab thauj. Feem ntau cov yeeb yaj duab ua lag luam xav tias zaj yeeb yaj kiab tau muab khaws cia hauv cheeb tsam tswj, kwv yees li ntawm 75- 85 degrees Fahrenheit, kom txog thaum nws xav tau lo rau ntawm lub khob.
Qhov kev pab cuam zauv yog siv los txiav txim seb qhov qis qis qis npaum li cas yuav tsum tau muaj rau ib lub thauv ntim. Cov txiaj ntsim tau los yog siv los txiav txim tias qhov yuav tsum tau ua kom tiav rau zaj duab xis. Lub shrinkage ntawm zaj duab xis yuav tsum tsis txhob qis dua tus nqi no. Yog hais tias lub cheeb ntawm ib lub taub ntim zeeg hloov, qhov xav tau rau lub substrate nrog lub siab shrinkage quab yuam yog heev nce.
Los xam lub dav yuav tsum tau luam tawm daim ntawv lo, ntxiv qhov dav ntawm txoj hauj lwm overlapping ntawm lub khob rau lub dav ntawm lub overlapping interface ob zaug; lub tes tsho ntxiv 4 millimeters kom pub lub tes tsho xaub hla lub khob.
PVC (polyvinyl chloride) - Ob feem peb (kwv yees li 34 lab phaus) ntawm lub yeeb yaj kiab siv niaj hnub no yog ib qho PVC ua yeeb yaj kiab. PVC yog muaj zog hauv kev lag luam. Lub shrinkage ntawm PVC shrink zaj duab xis yog khaws cia ntawm 40% mus tshaj 60%. Tus nqi pheej yig yog siab thiab qhov nqi tsawg tsawg. Nws yog cov kev xaiv ntawm ntau lub tuam txhab hauv Tebchaws Meskas. Lub zog ntawm PVC ua rau nws haum rau ntau lub ntim thiab tiv thaiv tub sab ntaus strips.
Txawm li cas los xij, PVC tseem tsim teeb meem ib puag ncig. Cov thawv rau khoom siv yas thim xa tawm kom tshem tawm PVC thaum siv txheej txheem rov qab, tshwj xeeb tshaj yog cais tawm ntawm PETG (polyester) ntim. Txawm li cas los xij, vim tias cov kev faib ua feem ntawm PVC thiab PETG yog ze rau 1.33, nrog rau kev siv cuab yeej hnub no, nws tsis tuaj yeem cais ob qhov hauv kev rov ua dua.
PETG (polyester zaj duab xis) muaj ib tug nqi kwv yees li ntawm 78%, uas yog yav dhau los yog ib qho kev hloov rau PVC. Txoj kev ua lag luam ntawm polyester film yog li ntawm 15 mus rau 20 feem pua. PETG kev lag luam yog nce, tab sis PVC lag luam tsis yog. PETG muaj ib qho kev nqus ntawm 1.28, ua rau nws piv rau PVC. Txawm li cas los xij, vim tias cov nqi raw cov nqi ntawm PETG, nws hinders nws txoj kev lag luam loj, tshwj xeeb tshaj yog cov khoom kho tshiab thiab ntau cov khoom sib tw hauv lub khw.
OPS (polystyrene movie) - kuj tshiab nyob rau hauv Teb Chaws Asmeskas lag luam, tab sis kuj yog ib yam khoom siv rau ntau tus neeg thoob ntiaj teb. OPS yog tus phooj ywg zoo tshaj li PVC thiab nws yog qhov pheej yig dua PETG. OPS tam sim no muaj 5 feem pua ntawm kev lag luam hauv Teb Chaws Asmeskas, thiab nws txoj kev loj hlob tseem ceeb yog nyob ze ntawm lub ces kaum.
Vim tias OPS ua kom tsawg dua li ntawm rau caum-tsib feem pua, nws sib zog ua rau lwm cov khoom qis. OPS muaj lub zog nqus ntawm 1.025 thiab ib qho kev muaj nqis ntawm 20% siab dua PVC thiab PETG. Lwm cov txiaj ntsim ntawm kev siv OPS yog tias nws ua kom tsawg zog los yog tsis nyob hauv kev coj ua.
OPP (polyvinyl chloride), txawm hais tias tsis shrinkable, muaj ib feem ntawm lub nplhaib-puab shrink zaj duab xis, nrog ib tug ua lag luam sib qhia ntawm 18 mus rau 20. OPP yog haum rau ntim uas yuav tsum tau qis shrinkage thiab ze cylindrical. Qhov feem cuam ntawm OPP yog 0.90, tus nqi yog sib tw, thiab cov zis yog ntau dhau, uas hinders lwm cov ntawv luam tawm los ntawm kev nkag mus rau hauv lub lag luam no.
Luam tawm rau ntawm OPP nto dawb yuav tsum muaj ib zaj duab xis kom tawv tiv thaiv. OPP sib txawv los ntawm lwm cov substrates uas tau hais los saum toj no uas nws yog tsim rau cov ntawv thov ntiv nplhaib-thiab-loop.
Tom ntej zaj duab xis
Hnub no, ntau lub tuam txhab muaj kev kawm txog cov peev xwm ntawm non-petrochemical environmentally friendly films. Qhov yeeb yaj kiab no txawm siv los ua cov khoom siv rau cov thawv. Cov khoom siv no yog PLA (tshuaj ntsuab) thiab siv tag nrho ua ib lub lwg thiab biodegradable. Vim tias cov nqi pheej yig ntawm cov khoom petrochemical uas cov kev lag luam cia siab rau, PLA substrate yog lawm lwm txoj kev xaiv. Txawm hais tias hom luam ntawv no kuj nce mentsis ultra-modern, nws yuav tsum tau nkag mus rau kev ua lag luam dhau qhov xav pom.
Nws yog tsim nyog yuav tsum tau nkag mus rau lub lag luam ua yeeb yaj kiab lag luam hauv lub sijhawm, thiab nws yuav siv sij hawm. Nyob rau hauv ntev khiav, peev nyob rau hauv lub lag luam no yuav tsum muaj txiaj ntsig. Txawm li cas los xij, cov teeb meem tseem ceeb yuav daws tsis tau ntawm nws tus kheej, yog li koj pawg neeg yuav tsum muaj cov tshuab luam ntawv manufacturers, ink thiab cov yeeb yaj duab.