Shrink daim ntawv lo yog hloov tau zoo heev, yas, hlau, iav thiab lwm cov ntim ntim tuaj yeem dai kom zoo nkauj, ntsws zaj duab xis lub tes tsho daim ntawv lo vim yog kev sib xyaw ua ke ntawm cov qauv zoo thiab cov qauv sib txawv, ntau thiab nrov hauv kev ua lag luam.Daim ntawv no piav qhia txog cov yam ntxwv thiab qhov zoo ntawm daim ntawv cog lus zaj duab xis thiab cov ntsiab lus xaiv cov khoom, cov ntsiab lus rau cov phooj ywg siv:
Shrink zaj duab xis tes tsho daim ntawv lo
Shrinkable zaj duab xis txheej ntawm daim ntawv lo yog qhov tseem ceeb ntawm cov khoom cua sov shrinkable zaj duab xis, yog ib zaj duab xis yas los yog cov ntawv sau tawm ntawm cov yeeb nkab yas, feem ntau suav nrog PE, PVC, PET, xws li hom cua sov shrinkable zaj duab xis, vim tias cov zaj duab xis shrinkable. yog ib tug stretch orientation nyob rau hauv cov txheej txheem ntau lawm, thiab nyob rau hauv tus txheej txheem ntawm kev siv tshav kub shrinkage ntawm thermoplastic yas zaj duab xis.Yog li ntawd, ua ntej tsim cov qauv saum npoo, peb yuav tsum xav txog kab rov tav thiab longitudinal shrinkage tus nqi ntawm cov khoom, nrog rau cov deformation yuam kev tso cai nyob rau hauv tag nrho cov lus qhia ntawm cov ntaub ntawv kho kom zoo nkauj tom qab contraction, thiaj li yuav xyuas kom meej qhov txo ntawm tus qauv. , ntawv thiab bar code shrunk rau lub thawv.
01 Aqhov zoo
Shrink-wrap label yog ib daim ntawv teev cov ntawv luam tawm ntawm cov yeeb yaj kiab yas lossis cov raj yas.Nws muaj cov yam ntxwv hauv qab no:
1) Shrink zaj duab xis lub tes tsho daim ntawv lo ua haujlwm yog yooj yim, ntim sealing, tiv thaiv kev ua qias tuaj, kev tiv thaiv zoo ntawm cov khoom;
2) Cov zaj duab xis npog yog nyob ze rau cov khoom, lub pob yog compact, thiab tuaj yeem pom cov khoom zoo, yog li nws yog qhov tsim nyog rau cov khoom tsis sib xws uas nyuaj rau ntim;
3) Shrink zaj duab xis lub tes tsho daim ntawv lo, tsis tas siv cov nplaum, thiab tuaj yeem tau txais cov pob tshab tib yam li iav;
4) Shrink-wrapped label tuaj yeem muab 360 ° kho kom zoo nkauj rau lub ntim ntim, thiab tuaj yeem luam tawm cov ntaub ntawv khoom xws li cov lus piav qhia ntawm daim ntawv lo, kom cov neeg siv khoom nkag siab txog cov khoom lag luam yam tsis tau qhib lub pob;
5) Kev luam ntawv ntawm daim ntawv lo ntawm lub tes tsho shrink film belongs rau kev luam ntawv hauv zaj duab xis (cov ntawv thiab cov duab nyob rau sab hauv ntawm lub tes tsho zaj duab xis), uas tuaj yeem tiv thaiv kev xav thiab muaj kev hnav zoo dua.
02 Tsim cov ntsiab lus tseem ceeb thiab cov qauv xaiv cov khoom siv
Daim ntawv lo tsim
Kev tsim cov qauv kho kom zoo nkauj ntawm zaj duab xis yuav tsum tau txiav txim siab raws li qhov tuab ntawm zaj duab xis.Thaum tsim cov qauv, nws yog ib qho tsim nyog yuav tsum tau ua kom pom tseeb ntawm qhov transverse thiab longitudinal shrinkage tus nqi ntawm zaj duab xis, nrog rau qhov tso cai shrinkage tus nqi nyob rau hauv txhua qhov kev taw qhia tom qab ntim thiab qhov tso cai deformation yuam kev ntawm cov qauv kho kom zoo nkauj tom qab shrinkage, thiaj li ua kom ntseeg tau tias tus qauv thiab cov ntawv tom qab shrinkage tuaj yeem raug rov qab los.
Zaj duab xis thickness thiab shrinkage
Cov ntaub ntawv siv rau shrinkable zaj duab xis npog daim ntawv yuav tsum tsom rau peb yam: ib puag ncig yuav tsum tau, zaj duab xis thickness thiab shrinkage kev ua tau zoo.
Lub thickness ntawm zaj duab xis yog txiav txim siab raws li daim ntawv thov thiab cov nqi ntawm daim ntawv lo.Tau kawg, tus nqi tsis yog qhov kev txiav txim siab, vim tias txhua zaj duab xis yog qhov tshwj xeeb thiab ob tus neeg siv thiab lub tshuab luam ntawv daim ntawv lo yuav tsum paub meej txog cov yeeb yaj kiab thiab cov txheej txheem zoo tshaj plaws rau cov khoom ua ntej kos npe.Tsis tas li ntawd, qhov ntsuas qhov xav tau los ntawm cov khoom siv ua haujlwm thiab lwm yam txheej txheem tseem cuam tshuam ncaj qha rau kev xaiv ntawm thickness.Feem ntau nws yog qhov yuav tsum tau ua kom cov yeeb yaj kiab tuab ntawm daim ntawv lub tes tsho yog 30-70 μm, ntawm cov uas 40μm thiab 50μm feem ntau siv.
Tsis tas li ntawd, cov yeeb yaj kiab shrinkage tus nqi muaj qee yam yuav tsum tau ua, thiab lateral (TD) shrinkage tus nqi siab tshaj qhov ntev (MD) shrinkage tus nqi.Lub transverse shrinkage ntawm cov khoom siv feem ntau yog 50% ~ 52% thiab 60% ~ 62%, thiab tuaj yeem ncav cuag 90% hauv qhov tshwj xeeb.Longitudinal shrinkage tus nqi yuav tsum tau nyob rau hauv 6% ~ 8%.Thaum ua cov ntaub ntawv lub tes tsho shrinkable, cov ntaub ntawv nrog cov me me ntev shrinkage yuav tsum tau xaiv kom deb li deb tau.
03 Cov khoom siv zaj duab xis
Cov ntaub ntawv rau kev ua daim ntawv lo ntawm shrinkage zaj duab xis npog yog PVC (PVC) zaj duab xis, tsiaj (polyester) zaj duab xis, peg (hloov polyester) zaj duab xis, ops (oriented polystyrene) zaj duab xis, thiab lwm yam. Nws kev ua tau zoo yog raws li nram no:
PVC zaj duab xis PVC
zaj duab xis yog cov khoom siv ua yeeb yaj kiab tshaj plaws tam sim no.Nws yog pheej yig, muaj qhov kub thiab txias shrinkage ntau yam thiab tsis yog qhov yuav tsum tau ua kom sov qhov chaw.Lub ntsiab ua kom sov qhov chaw yog kev sib xyaw ntawm cov cua kub, lub teeb infrared lossis ob qho tib si.Txawm li cas los xij, PVC yog qhov nyuaj rau kev rov ua dua tshiab, thaum hlawv roj, uas tsis haum rau kev tiv thaiv ib puag ncig, tau raug txwv hauv Tebchaws Europe thiab Nyij Pooj.
OPSzaj duab xis
Raws li kev hloov pauv rau PVC zaj duab xis, OPS films tau dav siv.Nws cov shrinkage kev ua tau zoo yog qhov zoo, kuj ua rau kev tiv thaiv ib puag ncig.Kev lag luam hauv tsev ntawm cov khoom no yog cov khoom tsis txaus, thiab tam sim no, cov khoom zoo OPS feem ntau yog nyob ntawm kev xa khoom, uas tau dhau los ua ib qho tseem ceeb txwv nws txoj kev loj hlob.
PETGzaj duab xis
PETG copolymer zaj duab xis tsis yog tsuas yog ua rau kev tiv thaiv ib puag ncig, tab sis kuj tuaj yeem kho tus nqi shrinkage ua ntej.Txawm li cas los xij, vim tias qhov shrinkage ntau dhau, nws kuj yuav raug txwv rau kev siv.
PETzaj duab xis
PET zaj duab xis yog ib qho kev lees paub thoob ntiaj teb ib puag ncig hom thermal shrinkage zaj duab xis khoom.Nws cov kev qhia, cov khoom siv lub cev, daim ntawv thov ntau thiab cov kev siv yog ze rau PVC thermal shrinkage zaj duab xis, tab sis nws yog pheej yig dua li PETG, uas yog qhov zoo tshaj plaws unidirectional shrinkage zaj duab xis tam sim no.Nws transverse shrinkage tus nqi yog 70%, lub longitudinal shrinkage tus nqi yog tsawg dua 3%, thiab nws yog non-toxic thiab tsis muaj kuab paug, uas yog cov khoom siv zoo tshaj plaws los hloov PVC.
04 Zaj duab xis npog daim ntawv lo luam ntawv luam tawm ntawm cov yeeb yaj kiab xaiv.
Tam sim no, luam ntawv ntawm shrinkage zaj duab xis tes tsho yog tsuas yog siv nyob rau hauv gravure printing, hnyav printing number case, ua raws li los ntawm saj zawg zog printing.Nrog rau txoj kev loj hlob ntawm flexo thev naus laus zis, luam ntawv xim yog ci thiab meej, tuaj yeem sib piv nrog gravure luam ntawv, nrog cov tuab thiab siab gloss ntawm gravure.Tsis tas li ntawd, flexo ntau siv dej raws li tus cwj mem, zoo dua rau kev tiv thaiv ib puag ncig.Txiav nrog lub tshuab txiav kev ua haujlwm siab yuav raug siv los txiav cov ntawv luam tawm reel zaj duab xis cov khoom longitudinal txiav, thiab ntug ib feem ntawm zaj duab xis yuav ua tiav kom nws du, tiaj thiab tsis curly.Thaum siv lub tshuab txiav, ua tib zoo saib xyuas kom tsis txhob tshav kub ntawm cov hniav, vim tias cov hniav kub tuaj yeem ua rau cov yeeb yaj kiab raug txiav kom wrinkles.Lub suture ntawm zaj duab xis tom qab longitudinal txiav yog nqa tawm los ntawm lub tshuab suture, thiab lub raj lub qhov ncauj yog sib koom ua ke los tsim lub tes tsho membrane yuav tsum tau ntim.Cov khoom siv uas xav tau rau suture yog nyob ntawm qhov tseeb ntawm suture thiab kev txawj ntawm tus neeg teb xov tooj.Qhov siab tshaj plaws pom zoo ntawm suture yog 10 hli, feem ntau 6 hli.Transverse txiav thiab qhwv zaj duab xis npog sab nraum cov khoom, thiab txiav cov zaj duab xis horizontally raws li nws ntim loj.Ntawm qhov ntsuas kub kom tsim nyog, qhov ntev thiab qhov dav ntawm cov yeeb yaj kiab shrinkage yuav poob qis (15% ~ 60%).Feem ntau, cov yeeb yaj kiab loj yuav tsum yog li 10% loj dua qhov siab tshaj plaws ntawm cov khoom zoo li.Thaum tshav kub kub shrinkage yog rhuab los ntawm ib tug kub txoj kev, ib tug kub qhov cub, los yog ib tug kub sprayer.Nyob rau ntawm lub sijhawm no, daim ntawv shrink yuav sai sai raws li cov contour sab nrauv ntawm lub thawv, nruj nreem haum nrog lub contour sab nrauv ntawm lub thawv, tsim ib daim ntawv lo tiv thaiv txheej uas zoo ib yam nrog cov duab ntawm lub thawv.Nyob rau hauv cov txheej txheem ntawm shrinkage zaj duab xis lub tes tsho daim ntawv lo, nws yog ib qhov tsim nyog yuav tau ua nruj nreem nrhiav kom tau txhua txoj kev los ntawm ib tug tshwj xeeb nrhiav kom tau lub tshuab kom paub tseeb tias cov khoom raug.Cov kev siv ntawm cov ntawv shrinkable yog heev adaptable, yuav siv tau rau qhov chaw kho kom zoo nkauj, kho kom zoo nkauj ntawm ntoo, ntawv, hlau, iav, ceramics thiab lwm yam ntim ntim, lug siv nyob rau hauv cov khoom noj, tshuaj txhua hnub, tshuaj cov khoom ntim thiab kho kom zoo nkauj, xws li raws li ntau yam dej qab zib, tshuaj pleev ib ce, menyuam yaus cov zaub mov, kas fes thiab lwm yam.
Post lub sij hawm: Jan-07-2022