Kev tsim thiab daim ntawv thov ntawm tus number case
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 qhia zaub mov, ntawv sau cia, hom tshwj xeeb ntawv xim luam tawm khoom, kev ua si cardand li ntawd.
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Flexographic luam ntawv yog ib qho kev luam tawm ntau tshaj plaws rau yav tom ntej, raws li ntau yam khoom siv los ntawm flexographic printing manufacturers, xws li UV (ultraviolet) kho, EB (electron beam) tua thiab kos duab thev xim tshuab.
Ua ntej, cov ntawv luam ua flexographic thiab ink
Flexographic luam ntawv yog hais txog hom ntawv luam tawm uas muaj tus cwj pwm uas kis los ntawm ib tus menyuam anilox siv lub phuab nyhuv. Lub teeb ntawm lub phaj yog tib yam li hais tias ntawm lub letterpress phaj, thiab cov duab yog ib kov saum toj no tsis yog-daim duab. Ntxiv mus, cov ntawv luam phaj nyaj kuj yog ib txoj kev siv tib lub tshuab luam ntawv uas siv cov phom rubber los yog lub plhaub taum plab thiab cov kua nplaum uas ceev ceev. Nws pom tau tias qhov kev luam ntawv nyuaj yog ib ceg ntawm cov ntawv luam ntawv, uas txawv ntawm cov ntawv luam ntawm cov ntawv luam tawm hauv cov lus sau hauv cov ntawv luam tawm, cov lus sau ntawm tus number case thiab cov txheej txheem ntawm kev ua dab tsi.
Kev hloov ntawm cov duab thaum lub sij hawm luam tawm yog ua los ntawm ib qho yees duab-chemically reactive luam phaj los yog cov qauv roj hmab qauv. Tus number case yog muab xa mus rau lub phaj luam tawm los ntawm tus lej ntawm tus lej ntawm lub npov anilox nyob rau hauv ib qho quav number case reservoir. Cov tub ntxhais hluas reticulated rho tawm ntawm cov chrome hlau thiab muaj coated nrog cov txheej txheem ceramic lossis ib qho ion sprayed ceramic coj txheej. Tus nqi ntawm tus cwj pwm muab xa tuaj yog txiav txim los ntawm tus xov tooj ntawm cov kab nyob ntawm tus neeg tshais chaw hloov tsheb. Qhov npoo ntawm cov tuab tuab ntawm cov tuab tuab kheej kheej muaj txog 120 leej kab ntiv tes, thiab cov tsho hloov tshuab rau cov qauv zoo nkauj tuaj yeem ncav cuag li 500 mus txog 900 ntim ib nti.
Flexo inks muaj ntau hom kev siv thiab ntau hom substrates, yog li muaj ntau hom flexo inks uas phim lawv. Yuav tau muab faib ua plaub pawg hauv qab no:
1. Cov Kua Haus: Cov Qoob Muaj ntau yam xyaw xim xyaw.
2. Dej cawv: nrog rau ntau hom dej cawv.
3. Aqueous: Cov hnyav siv dej yog tsis muaj dej ntau.
4, UV curing (UV) hoob kawm: Tsis zoo li zoo tib yam ntawm tus cwj pwm, nws tsis muaj cov kuab tshuaj, tsuas muaj qee cov tshuaj tsis haum. Cov yam ntxwv ntawm tus kheej tau pom muaj hauv daim duab hauv qab no.
Raws li qhov tseem ceeb ntawm cov cim feem ntau ntawm cov nyhuv flexographic, lawv muaj cov toner (pigment los yog dye), ib pob zeb (txuas cov khoom), hnyav, ib tus neeg saib xyuas kev pab thiab zoo li. Lawv feem ntau yog cov kua hauv cov phev ntau raws li cov volatilisation thiab ziab, tab sis kuj muaj ob peb qhov phom uas yog qhuav hauv daim oxidized conjunctiva, osmosis thiab cov zoo li. Vim tias cov ntawv luam tawm flexographic siv lub npov anilox rho tawm tus number case, lub viscosity ntawm cov ntawv luam theej luam yuav tsum tsis txhob siab, feem ntau ntawm 1 thiab 100 poise.
Flexographic inks yog hom hnyav hauv thev, uas yog cov kua phom leej, uas yog qhuav los ntawm cov evaporation ntawm cov kuab tshuaj. Tus lej no muab xa mus rau lub phij nyhiab los ntawm ib qho quav anilox (ib qho hlua khi ntawm cov quav rau tus kheej). Raws li nws lub cev xim, nws tuaj yeem muab faib ua peb pawg nram qab no, xws li: hom xim, xim xim, xim xim xim. Feem ntau, qhov zas xim muaj qis viscosity thiab cov xim pigment muaj viscosity ntau dua los pab txhawb qhov kev faib tawm thiab kev cia (tiv thaiv kom txhob raug phom sij). Vim cov ntaub ntawv sib txawv ntawm cov substrate, cov ntaub ntawv thiab cov hnyav hauv cov ntawv numberulation kuj muaj ntau yam, tiam sis tus cwj mem yuav tsum muaj cov haum viscosity thiab fluidity, dryness kuj yuav tsum tau, thiab tsis muaj cov ntxhiab tsw tom qab ziab. Lub adhesion ntawm qhov khoom yog qhov zoo thiab tsis ua hauj lwm hauv lub phaj.
Txoj kev loj hlob ntawm cov ntawv luam theej luam tau ceev dua thiab sai dua. Ntau dua thiab ntau tus lej ntawm cov khw muag khoom lag luam yog tsim cov kev lag luam zoo thiab cov nqi qis, tsim kom muaj ntau lub sijhawm rau kev luam ntawv. Lub tswv yim ntawm dej-raws li cov phev ntev yog qhov tseem ceeb tshaj plaws. Peb yuav tsom rau tom kawg. Piv txwv no hom ntawm tus number case.
Thib ob, hnyav xaj xaj xaj xaj thiab kua cwj mem raws li cwj pwm haus
Kev siv phom raws qhov hnyuv siv yog feem ntau siv rau hauv cov luam tawm ntawm cov khoom uas tsis yog nqus, thiab cov luam tawm tau qhuav ntawm evaporation ntawm qhov hnyav ntawm tus cwj mem.
Raws li qhov xaiv colourant, nws yuav muab faib ua dua zas ntxiv thiab xim number case. Cov dye number muaj zoo transparency thiab luam tawm ntawm cov nplaim ntawm cov hlau substrate xws li ntawv aluminized, uas tuaj yeem muaj qhov tshwj xeeb gloss nyhuv. Xim number case, feem ntau yog siv rau nitrocellulose (NC) ua cov khoom tseem ceeb rau cov ntawv luam ntawm daim ntawv; 50% olefin resin thiab acrylic resin ua cov khoom tseem ceeb rau luam tawm nyob rau ntawm cov yas yeeb yaj kiab; siv nyob rau ntawm cov nplais ntawm cov ntawv txhuas Cov luam ntawv muaj peev xwm xaiv tau los ntawm dye number case thiab pob tshab xim kua. Xim number case yog xaiv tau los ntawm cov xim xim liab, uas ua rau tus number case muaj siab gloss, zoo transparency thiab ua hauj lwm zoo dua lub teeb ntawm lub teeb-resistant dye.
Cov cwj mem kua cwj quav yog tau los ntawm dissolving cawv-soluble resin nyob rau hauv cov ciaj ciam dej cawv, thiab ntxiv ntxiv ib qho tshuaj ester thiab cov cellosolve rau cov xim. Feem ntau ntawm cov ntawv luam tawm ntau ntawm cov yeeb yaj kiab plhaws rau kev siv ntau hom khiab mis. Cov pob zeb siv rau cov binder yog cov txiv neej raug acidic, polyamide resin, acrylic resin, epoxy resin, alkyd resin, nitrocellulose, ethyl cellulose, thiab cov zoo li. Feem ntau cov tshuaj siv yog ethanol, n-propanol, isopropanol, n-butanol, isobutanol, thiab lwm yam., Thiab tej zaum kuj yog ib qho me me ntawm cov ntxhuav thiab cov tshuaj siv roj ester. Tus lej feem ntau tsis siv nyob rau hauv ib qho hnyav, tab sis yog tov nrog ntau cov kuab tshuaj los txhim kho solubility thiab ziab khoom.
Zag peb, dlaim ntawv dlej dlej haus dej
Rau number case manufacturers, number case hauv khw flexo yog qhov muaj txiaj ntsim ua lag luam. Nws tseem yog ib qho lag luam tsim nyog muaj nqis. Hauv qhov kawg ntawm kev lag luam, number case yog siv feem ntau hauv cov ntawv luam tawm ntawv, ntawv ntim, ntawv txhuam ntawv, ntawv tsev neeg thiab cov ntawv sau ua ntej. Hauv kev ua ntawv luam, cov flexo inks yog nce. Tsis tas li ntawd, qhov ntxiv ntawm kev siv tshuab ua kua tshuab tau ua kom zoo dua qub txog cov xaim mem nyuj.
Zaj dab neeg khij nyhia qhia txog tus cwj pwm uas siv dej, haus dej cawv, cellosolve los yog zoo li qhov hnyav, thiab feem ntau yog siv los luam tawm ntawm cov ntaub ntawv zoo li substrate xws li daim ntawv, daim ntawv duab, cov ntaub ntawv, cov cement hnab, thiab cov zoo li. Nyob ntawm seb hom khoom siv uas siv, tus number case yog tsim los ntawm hom kab uas muaj alkali-soluble, hom emulsion, thiab hom dej-soluble. Cov cwj mem muaj cov yam ntxwv ntawm cov tsis muaj dej ntau heev, tsis yog-flammable, tsis ua mob rau lub chaw tsim khoom lag luam thiab tus neeg teb xov tooj luam ntawv, thiab tsis muaj kev ua qias tuaj rau qhov chaw atmospheric; number case raws li tus ntawv luam tawm tshiab, cov tshuaj lom thiab teeb meem muaj nyob hauv cov ntawv luam tawm. Tus nqi tsawg, qhov qaug rau cov khoom ntim khoom me me yog tsawg; tag nrho ib puag ncig zoo tuaj lawm.
Ib lub cim zoo kawg nkaus yuav tsum muaj cov nram qab no: tsis muaj dej ntau, zoo txaus thiab viscosity, ceev thiab kom ziab, tsis muaj feem hauv daim hlau thiab cov ntawv luam tawm, thiab yooj yim luam ntawv rau hauv xovxwm Nws yuav tsum muaj kev ruaj siab zoo thiab ntev- term cia ntawm precipitates. Nws yuav tsum yooj yim rau siv tom qab nplawm.
Plaub, cov lus muaj pes tsawg tus ntawm tus cwj mem zauv
Colorants feem ntau yog ua los ntawm alkali-resistant pigments, xws li cov organic thiab inorganic pigments, uas yuav tsum tau zoo dispersion hauv cov tshuab aqueous, xws li cov organic thiab inorganic pigments, uas yeej tseem zoo tib yam li colorants hauv hnyav inks. Tam sim no, yuav kom tau raws li cov hniav xav tau ntawm cov ntaub ntawv ntim khoom, pigments nrog ci xim thiab muaj zog tinting zog feem ntau siv. Dyes kuj qee zaus kuj raug siv los ua kom muaj zog ntawm tus cwj mem thiab muaj peev xwm ua kom lub zog zoo dua. Txawm li cas los xij, tsis muaj teeb meem twg yog siv hom xim twg, nws zoo dua yog kho nrog anionic los yog nonionic surfactant, vim tias qhov nro ntawm qhov tob thiab polarity ntawm cov dej hauv tus cwjmem yog tus loj, thiab cov dispersion ntawm lub colorant yog cov nyuaj, xws li tsis kho . Nws yuav ua rau tsis sib npaug.
Lub binder ntawm cov cim slots yog ib qho tseem ceeb ntawm kev cuam tshuam tus zoo ntawm tus cwj pwm, tshwj xeeb tshaj yog muaj tseeb khauj xim. Muaj ntau hom, uas yuav raug xaiv raws li ntau zaus thiab siv. Nws tsis yog qhov hais ntxiv tias qhov kev tshawb nrhiav tam sim no thiab kev loj hlob ntawm tus lej hauv cov tuam txhab raug thev thij tseem yog tsom rau kev tshawb fawb ntawm cov neeg khi. Cov nram no yog ib qho kev qhia me ntsis rau cov khoom siv uas feem ntau siv cov khi.
(1) dej-soluble binders, xws li polyvinyl cawv, hydroxyethyl cellulose, thiab polyvinylpyrrolidone, thiab lwm yam., Xws li ib phau ntawv tuaj yeem yuav zwm mus los ntawm dej, thiab yog li tus cwj pwm siv nyob rau ntawd yuav raug siv qee yam kev siv. Kev txwv tsuas yog siv tau rau cov khoom uas tus cwj pwm muab luam tawm tsis pom dej.
(2) Alkali-soluble binders Tam sim no, acrylic resins feem ntau yog siv cov khi rau hauv tsev thiab txawv teb chaws.
Nyob rau hauv qhov tseeb, acrylic resins tuaj nyob rau hauv peb cov ntaub ntawv: alkali soluble, nonionic polymeric thiab acid soluble polymeric. Hauv cov cwj pwm, alkali-soluble hom yog mas siv (vim tias cov yeeb yaj kawb tsis yog-thiav yog dej hydrophilic thiab muaj cov dej tsis muaj zog; acid-soluble yam tsis muaj cov tshuaj tsis haum thiab tsis txaus). Hauv cov txheej txheem kua mis, dej ammonia, amines los yog sib xyaw ntawm nws yog siv los ua tus qauv dej-soluble amine ntsev. Tom qab luam tawm rau ntawm substrate, ammonia zaj duab xis yog evaporated, thiab tom qab tus cwj pwm zaj duab xis qhuav, nws muaj ib cov degree ntawm gloss, dej tsis kam thiab abrasion tsis kam.
(3) Lub diffusion hom phau ntawv yog ib qho zoo uas yuav tsum raug rho tawm hauv dej, thiab feem ntau yog hu ua latex. Propylene, ethylene lossis styrene-butadiene polymers feem ntau muaj nyob hauv cov pob khoom no. Cov hniav muaj qhov zoo tshaj qhov zoo dua cov yaj cov ntaub ntawv: Thawj, latex tuaj yeem muaj qhov siab thiab tsis muaj viscosity, uas tuaj yeem tsim cov khoom zoo siab tuaj; ob, latex tuaj yeem muaj feem ntau cov kabmob polymer, macromolecules Lawv yog cov uas tiv taus ntau thiab kub dua cov roj me me, thiab lawv cov adhesion zoo. Txawm hais tias cov tshuaj macromolecules feem ntau ua rau cov tawv nqaij yuav ua rau cov ntshav siab, latex tsis muaj qhov teeb meem no, uas yog cov yam ntxwv ntawm cov roj hmab. Qhov teeb meem loj tshaj plaws nrog cov phom hauv yas yog qhov uas luam ntawv nyuaj thiab tsis yooj yim rau kev ntxuav, vim hais tias thaum lub caij muaj teeb meem, nws yog ib qho khoom siv tsis zoo, vim li ntawd, yog siv xaum ntev. Tsis tas li ntawd, cov roj hmab tseem tuaj yeem tov nrog ib qho alkaline binder, uas khaws qee cov khoom tshwj xeeb rau cov roj hmab thiab muaj cov ntawv pov thawj ntawm lub khob dej alkali-soluble.
Thib tsib, cov ntsiab lus ntawm cov ntawv luam ntawm cov ntawv luam tawm ntawm lub tshuab
Dej uas yog cov dej yog ib qho ntawm cov tseem ceeb tshaj plaws uas cuam tshuam txog qhov zoo ntawm cov ntawv luam tawm flexographic. Tshwj xeeb hauv cov luam yeeb, nws yog ib qho tseem ceeb uas tsis tuaj yeem pom tsis tau. Cov nram qab no yuav tsum qhia cov xwm txheej uas yuav tsum tau ua tib zoo saib xyuas thaum siv cov cim xim luam tawm xim luam yeeb hauv luam yeeb.
Cov kev xyuam xim ua ntej luam tawm:
(1) Lub cwj mem yuav tsum muab ntim thiab muab cia rau ntawm 15 mus rau 25 ° C thiab ib tus txheeb ze ntawm 65% mus rau 70%. Tsis tas li ntawd xwb, raws li lub txee lub neej ntawm tus cwj pwm, tsim nyog yuav khoom thiab cia kua mem sau. Yog tias koj tsis muaj cov xwm txheej saum toj no, koj tuaj yeem siv txoj kev siv lub sijhawm luv luv thiab cia, thiab tso tus ntawv ntawm lub tshuab luam ntawv ua ntej peb hnub ua ntej siv mus rau qhov chaw.
(2) Txij li cov xim hauv cov pob zeb muaj tag nrho los ntawm kev tov ob los yog ntau hom thawj xim, nws yuav tsum muaj txhua qhov xim muaj xim xim kua zis ua ntej raws li tus qauv, thiab cov xim thawj xim thiab qhov npaj xim xim kua mem raug ntsuas . Tus nqi paab thiab viscosity yog siv raws li kev ua tsis tau rau kev ntsuam xyuas.
(3) Cov phom yuav tsum tau tag nrho cov khoom ua ntej ob xuab moos ua ntej lub tshuab nyob rau, tsawg kawg yog ib nrab teev, ntsuas tus nqi paab thiab viscosity ntawm tus cwj mem, kho qhov nqi paab thiab viscosity raws li qhov chaw luam ntawv thiab lwm yam, tias tus number case kawm tau ruaj khov thiab cov nyhuv luam ntawv tiav. qib siab.
Cov cwj pwm hauv kev luam tawm: (1) Thaum twg tus ntiv tes yuav siv txhua qhov ua haujlwm, yuav tsum siv tus cwj pwm tshiab tshiab. Tom qab txog li ib teev, qhov ntawd yog, qhov kev ua haujlwm tseem ruaj khov, cov lej tom qab ntxiv yuav muab ntxiv.
(2) Vim muaj cov thixotropy loj ntawm tus cwj pwm, nws yog qhov tsim nyog los ntxiv cov khoom tsim nyog (cov stabilizers, cov retarders, cov kua pH, thiab lwm yam) ntawm cov txheej txheem kom kho. Lub sijhawm ntawm lub sijhawm thiab kev siv tshuaj yuav tsum tau txiav txim siab raws li tej yam kev mob tshwj xeeb los tswj hwm tus nqi paab thiab viscosity ntawm tus cwj mem nyob hauv kev luam ntawv kom muaj kev ua tau zoo tshaj plaws.
(3) Txij li cov xim ntawm qhov chaw xim muaj xim yuav hloov me ntsis thaum lub sijhawm ntev-ntev, tus neeg teb xov tooj yuav tsum kom zoo-khi cov cwj pwm raws li qhov txawv xim kom paub tseeb tias qhov txawv ntawm qhov txawv yog nyob rau hauv qhov kev pom zoo.
Rau, qhov kev ntsuas tswj ntawm tus number case
Duav ntsuas cov cim qhia yog xws li ua kom muaj tus kab mob, pH thiab dryness.
1. Txaus siab ntawm ntog viscosity. Ink viscosity hais txog lub peev xwm ntawm tus number case los tabkaum lub zog ntawm lwm yam khoom muaj zog hauv nws lub zog sab hauv. Qee tus lej ntawm tus cwj pwm feem ntau yog siv los ntws los ntawm cov ntsuas kub ntawm qhov ntsuas kub (feem ntau 20 ° C), thiab lub sij hawm yuav tsum tau teev cia yog ntsuas raws li qhov ua tau tawm.
Lub xauv npo ntawm tus cwj pwm yog qhov tseem ceeb tshaj plaws uas yog txiav txim siab txog kev hloov cov ntaub ntawv ntawm tus cwj pwm, qhov ruaj khov ntawm cov ntawv luam tawm, tus nqi nkag mus thiab qhov ci ntsa iab. Tus cwj mem ntawm tus cwj mem xau yog siab heev, xim xim dub, muab tus cwj mem kua muaj zog, nce zuj zus tuaj; tus viscosity tsawg dhau, cov xim hloov, thiab qhov loj me me yog loj kom ua rau txo tus nqi luam ntawv zoo.
Hauv flexographic luam ntawv, daim duab ntawm tus cwj pwm tsis yog txiav txim siab ntawm tus kheej ntawm tus cwj pwm ntawm nws tus kheej xwb, tiam sis los ntawm txhua yam uas cuam tshuam rau cov tawv nqaij ntawm tus cwj pwm, xws li daim npog anilox, duab xwm, thiab lwm yam. Qhov siv lub viscosity tau siv yuav tsum tau yooj yim mus rau lub cwj pwm los ntawm lub twj tso kua mis, thiab muab xa mus rau lub phaj luam ntawv thiab lub substrate rau tib tus nqi, yog li ntawd qhov ceev ntawm cov teeb meem luam tawm thiab cov duab dot tsis hloov tseem ceeb, thiab cov luam tawm zoo yog khaws cia. Cov cim ntawm tus cwj mem yuav tsum zoo ib yam.
Tus number case viscosity yuav tsum sib txawv thaum luam ntawv lub vijtsam version thiab daim teb version. Feem ntau, thaum lub vijtsam luam tawm, qhov yuav tsum yog qhov qis me ntsis, thiab lub tshuab luam ntawv luam ntawm lub tshuab luam ntawv tseem cuam tshuam rau cov xaim xoom xaim; thaum lub siab ceev luam ntawv siab siab, tus lej ntawm tus cwj mem xau qis dua, thiab thaum tus luam ntawv qis qis dua, tus cwj mem ntawm tus cwj pwm ntawm siab dua yog siab dua. Feem ntau, tom qab lub npov anilox thiab cov menyuam yaus hloov mus nrog tus cwj pwm, yog hais tias tus cwj pwm pliv yog muaj kev pom zoo, qhov ua kom haum yog haum; Yog hais tias tus number case nco, qhov viscosity ntawm tus number case yog loj; Yog hais tias tus dot tsis pom txhua, qhia tias cov viscosity tsawg dhau.
2. Kev kho ntawm number case viscosity. Kev kho thiab kev tswj ntawm lub xauv npo ntawm tus cwj pwm yuav tsum raug tswj los ntawm kev tswj cov qhov ntsuas ntawm tus cwj pwm thiab qhov ntau npaum li cas. Yuav kom paub meej tias qhov sib txig ntawm kev luam ntawv zoo, lub cev ntawm cov ink viscosity yuav tsum tau ceev cia. Lub rooj nram qab no muab qhov nyiaj ntawm kev ua haujlwm:
Raws li tuaj yeem pom los ntawm lub rooj, qhov ntsuas kub muaj qhov cawv loj rau ntawm qhov nyiaj nce ntxiv. Dilution cwjmem muaj cov nyhuv loj rau ntawm qhov kawg ntawm qhov sau. Piv txwv, qhov kub ntawm cov cwj mem ua ntej luam ntawv yog 10 ° C, tus viscosity yog 25 S, thiab tom qab lub sij hawm luv luv ntawm kev lag luam, qhov kub ntawm tus cwj mem yog tsa ceg rau 20 ° C, thiab cov viscosity yog txo qis rau 18 S. Raws li qhov tshwm sim, tus number case txheej yog diluted thiab qhov ceev yog qis dua. Yog li ntawd, nyob rau hauv cov khoom tiag, qhov kub ntawm tus cwj pwm siv yuav tsum tau stabilized ntawm qhov kub ntawm lub luam ntawv kav. Rau qhov ntsuas kub ntawm tus cwj mem los ntawm kev sib txhuam rau thaum lub sij hawm luam ntawv, qhov hloov pauv hloov, thiab nws tuaj yeem txiav txim siab yuav daws tau los ntawm qhov txias.
Ink yog tshwj xeeb yog nkag siab ntxiv rau kev ntxiv ntawm kev siv, yog li kev tu xyuas yuav tsum tau ua kom paub tseeb tias yuav tsum tau muaj kev pom zoo. Zam txhob kom ntev (tsis pub tshaj 5%) kom tsis txhob muaj tus lej xaj xaj xaj tawm tsis txhob poob siab. Vim tias qhov nruj nruj yuav tsim ua npuas, feem ntau cov dej yuav ua rau ntau npuas ntau dua li cov dej mos. Piv txwv, kom txo cov npuas, nws yog ib qho tsim nyog yuav ntxiv cov tshuaj tiv thaiv tus kab mob no. Tsis txhob siv cov tshuaj defibrillating paraffin raws li tus neeg saib xyuas, txwv tsis pub nws yuav cuam tshuam rau cov ntawv pov thawj ntawm cov ntawv luam ntawv. Tus neeg ua tawv nqaij tawv uas muaj qhov sib xyaw nrog silicon yuav tsum tau diluted nrog dej thiab ntxiv rau tus number case thaum lub sij hawm tsis tu ncua, thiab silicon-based defoaming tus neeg muaj lub siab concentration ntawm undiluted yog ntxiv rau tus number case rau pinholes hauv cov ntawv luam. Deinking tshwm sim.
3. Cov pH ntawm tus number case. Nwg feem ntau tswj cov pH ntawm li 9 thiab yog me ntsis alkaline. Yog tias tus nqi pH loj dhau lawm, nws yuav ua rau tus cwj pwm plev zis (lub ntsiab lus uas tus lej cim ua nyias thaum thau sab nraud quab yuam, thiab ib qho khoom uas rov qab los rau nws lub xeev qub tom qab sawv) . Tus number case yuav ntws rau sab hauv ntawm lub khauj khaum los yog rubber, uas ua rau tus cwj mem qhuav kom qhuav. Cov lej ntawm cov xaim anilox yog cov tsis txaus, thiab cov xim dawb los yog cov zoo li cov khoom tsim tawm thaum luam ntawv. PH tus nqi siab dhau lawm, qhov uas ua rau lub zog yog qis dua, thiab ziab qis qeeb. Txoj kev tsuas yog ntxiv cov dej me me kom txo tau cov xim ntawm tus cwj pwm xwv kom hloov tus fluidity ntawm tus cwj pwm tsis txaus siab. Vim li no, cov tshuaj lom alkaline yuav tsum tau tsim nyog ntxiv rau kho tus cwj mem. PH nqi.
4. Qhuav. Kev ziab ntawm cov zauv feem ntau yeej tsis to taub lawm. Yuav kom daws tau qhov teeb meem ntawm kev ziab khaub ncaws, yuav tsum tau kho kom haum. Piv txwv li, cov neeg tsim los ntawm tus cwj pwm ntawm comonomer, tus neeg sawv cev tsis sib haum, kev sib-sib-sib-ua thiab tus neeg saib xyuas kev pabcuam raug kuaj xyuas thiab ua haujlwm zoo dua. Lub ziab ziab ntawm tus cwj pwm yuav zoo heev tuaj kom tau raws li qhov yuav tsum tau ua ntawm qhov khoom muaj zog ntau lawm. Yog tias qhov tshuab ziab ntawm cov cuab yeej uas twb muaj lawm yuav tsum kho thiab zoo dua, qhov ziab ntawm tus cwj pwm yuav zoo tshaj qhov zoo.
5. Peb yuav mloog tag nrho cov kev xav dhau los ntawm kev siv tus number case, tshwj tsis yog rau cov hauv qab no: co tau zoo ua ntej siv los yog sampling, paub tseeb tias qhov kev xiam oob khab raws li kev sim ib yam; raws li tus qauv tsim ntawm lub phaj thiab luam ntawv Ceev, txiav txim siab rau cov xim ntawm cov dej uas muaj raws li cov dej. Thaum lub viscosity siab, nws yuav tsum tau diluted nrog dej los yog ib qho tshwj xeeb hnyav. Tshem cov xim tshwj xeeb rau cov xim uas muaj dej-raws li cov dej khov rau thaum nws raug muab ntxig.
Yog tus viscosity tsawg dhau, nws yog qhov zoo tshaj rau kev kho nrog tus thawj tus cwj mem thiab siv li tsawg lossis tsis muaj thickener li sai tau. Thaum cov xim uas muaj suab nrov siab, nws yuav tsum tau muab yaug nrog ib lub tshuaj tua tshwj xeeb txhawm rau txhim kho qhov ua kom zoo; qhov hloov ntawm qhov hloov siab tawv yog feem ntau them nyiaj rau lub sijhawm luam ntawv, thiab cov ntaub ntawv pov thawj yog khaws tseg. Nyob rau hauv tus txheej txheem ntawm kev siv, thaum muaj ntau npaus, ib qho nyiaj tsawg yuav ntxiv tau. Defoamer (feem ntau tswj tau hauv 0.2%); tom kawg ntawm kev luam ntawv, cov khoom siv dag zog yuav tsum tau muab ntxuav kom sai li sai tau; tsis tseem ceeb rau cov ntawv yuav tsum muab xa rov qab mus rau hauv av (tiam sis tsis yog tov nrog tus thawj tus cwj mem), khaws cia hauv qhov chaw txias thiab txias; Updated 10/22/07 / f.Triplett Thaum nws zoo dua los lim nrog lub mesh ntawm 90 mesh los yog siab dua, siv nws ua ntej.
Nyob rau hauv xyoo tas los no, cov pa number case muaj qhov tsis zoo ntawm kev qaug kom qhuav, pluag gloss, thiab yooj yim ntawv shrinkage. Nrog rau cov ntaub ntawv tshiab cov ntaub ntawv thiab kev txhim kho cov khoom luam ntawv thiab lwm yam kev mob, muaj kev txhim kho zoo. Daim ntawv thov ntawm lub xeev ua tus flexographic high-precision cwj mem qhia tau hais tias lub zij ziab tuaj yeem ncav cuag 200m / min thiab qhov kev daws teeb meem tau tshaj 150 tawm kab.
Xya, kev ntsuam xyuas ntawm cov ntsiab lus tseem ceeb ntawm flexo printing chaw xim xim
Qhov formulation ntawm qhov chaw muaj xim hauv xim yog hais txog qhov sib xyaw ntawm ib los sis ntau dua qhov ntxiv thiab ntxiv cov ntaub ntawv pab cuam kom haum rau tag nrho cov txheej txheem ntawm kev luam ntawv. Kev tsim tawm ntawm tus cwj pwm feem ntau yog muaj ob yam: ntawm ib sab tes, kev hloov ntawm cov ink mauv luam ntawv haum, nrog rau kev siv zog, kev nplaum, qhov dej, qhov muag, thiab lwm yam. ntawm qhov tod tes, cov xim xim ntawm tus number case, qhov kev sab laj tseem ceeb hauv ntu no yog xim xim ntawm flexo inks
Cov haujlwm nram qab no yuav tsum tau muab sau rau lub cim xim hloov xim: tus number case npaj yuav tsum tau ua raws li cov qauv teeb ci D65. Yog hais tias nws yog thaum lub sij hawm hnub, nws yuav nqa tawm nyob rau hauv lub hnub ci qaum ntuj qhov rai. Raws li tus qauv xim qauv qauv muab los ntawm tus neeg muas zaub, nws muaj ntau hom hawj thiab cov xim xim twg. Nrog rau kev siv cov xim muaj xim chromatography, cov naj npawb ntawm anilox kab yuav raug xaiv rau cov luam ntawm qhov chaw sib txawv xim kuaj yog txiav txim siab, thiab cov hom xim thawj cov xim siv rau qhov chaw xim xim, thiab dab tsi yog lub ntsiab xim thiab pab pawg xim. Raws li cov kev xav tau ntawm cov ntawv luam tawm, cov xim loj thiab ntu cov xim muaj xim zoo rau xim xim. Dispense me me ntawm cov xim muaj xim muaj xim rau cov pov thawj thiab cim qhov kev faib ua feem ntawm txhua qhov khoom. Cov xim sib txawv ntawm cov pov thawj thiab tus qauv raug ntsuas los ntawm cov xim ntsuas xim thiab qhov kawg kev hloov tau. Raws li qhov kev faib ua feem ntawm qhov kev hloov zaum kawg, ib qho nqi ntawm luam ntawv number case yog npaj. Tom qab cov kua roj vanish yog siv, lub hawj thiab ci ntsa iab yog ze li sai tau rau tus txheej txheem. Ua ib txoj haujlwm zoo ntawm cov ntaubntawv povthawj siv, thiab sau cov kev faib ua feem thiab qhov tseemceeb ntawm qhov kev hloov kho ntawm qhov chaw xim xim rau yav tom ntej.
Muaj ntau qhov yuav tsum tau muaj cov xim ntawm cov xim sib txawv. Txhua tus lej uas tau zoo nrog ib qho kev faib ua feem ntawm tus neeg sawv cev los sis cov xim dawb rau hauv cov xim thawj xim, cov xim nruab nrab, thiab cov xim xim tawv xim yog suav ua xa los ua ib lub cim uas muaj xim dawb. Cov txheej txheem sib tov ntawm tus cwj mem kua kob zas yog raws li nram no: qhov xim dawb lias xim nyob hauv tus qauv coj los soj ntsuam thiab txiav txim. Seb tus naj npawb ntawm anilox nyob rau hauv printing, qhov sib piv ntawm tus cwj mem xub thawj rau cov thinner (los yog dawb cwj mem). Ib qho me me ntawm hom xim xim kua qis ntxiv rau cov thinner. Yog hais tias tus thawj xim kua number case ntau dua ib hom, qhov nyiaj ntawm cov thawj xim yog nce ua ntej, thiab cov nyiaj ntxiv me me. Ntsuas daim duab ntawm tus cwj mem xau ntawm lub sijhawm no kom pom tias nws yog tsim rau kev luam tawm. Yog tsis tau, kho nws nrog number case ntxiv. Siv lub flexo wiper (raws li cov xov tooj ntawm cov ntawv sau anilox) kom muab cov qauv coj los sib piv thiab muab sib piv rau tus qauv xim coj mus txog rau thaum cov Hawj Hawj thiab Ntsuas Ntoo. Thaum kawg, nco ntsoov ua ib txoj haujlwm zoo ntawm kev teev cov xim ntawm no qhov xim.
Yuav tsum muab cov cim uas muaj cov ntawv tseem ceeb uas yuav tsum ua kom yooj yim. Cov phev siv nrog peb cov xim thawj sib txawv ntawm cov khoom sib thooj uas tsis muaj tus neeg thinning hu ua tsaus nti hauv plawv, thiab cov txheej txheem ua raws li nram no: qhov tsaus nti cov xim nyob hauv tus qauv coj los soj ntsuam thiab txiav txim, thiab lub vas thaum lub sij hawm luam tawm txiav txim siab. Tus nab npawb ntawm cov kab thiab kwv yees feem kwv yees ntawm txhua xim xim. Soj ntsuam qhov ci ntsa iab ntawm txoj kev xim uas siv rau qhov ntsuas nplai. Ntxiv cov xim thib ob ntxiv rau cov xim loj xim, ua ntej ntxiv ib qho loj, ces mam li ntxiv me me. Ntsuas daim duab ntawm tus cwj mem xau ntawm lub sijhawm no kom pom tias nws yog tsim rau kev luam tawm. Yog tias tsis yog, nws muaj peev xwm muab kho nrog rau number case ntxiv. Siv lub flexo wiper (raws li tus naj npawb ntawm anilox yob) kom khoov cov qauv thiab muab sib piv rau tus qauv xim qauv kom txog rau thaum lub Hawj thiab qhov ci tau zoo. Cov kev cai tib yam, thaum kawg yuav tsum tau ua nyob rau hauv qhov tshwj xeeb muaj xim muaj xim xa cov ntaub ntawv.
Rau txoj kev sib txawv ntawm cov xim ntawm cov flexo npo, thaum cov xim coj los ntawm tus neeg muas zaub yog xim xim uas yog sib txuam nrog ntau cov qauv ntawm peb lub ntsiab xim thiab tib lub sij hawm, nws yuav tsum luam tawm cov nyhuv hauv teb, nws yog qhov tsim nyog los koom nrog kev xa tawm ntawm lub network xim qauv. . Qhov tob xim ntawm cov ntawv luam tawm tau raug kho raws qhov feem pua ntawm cheeb tsam ntawm qhov chaw hauv internet, yog li qhov feem pua ntawm cov lus qhia ua ke ntawm cov xim uas nthuav los ntawm cov xim sib txawv ntawm cov chromatogram tuaj yeem siv rau tus number case blending.
Kev xyuam xim nyob rau hauv flexo dawm xim xim numbering blending: Lub compatibility ntawm lub binder zog, pigments thiab binders txiav txim siab lub stability ntawm tus number case, yog li inks ua los ntawm txawv manufacturers muaj lawv tus kheej lub neej txee. Ua ntej yuav kho tus cwj mem rov qab, ua tib zoo mloog seb tus lej puas tau tso cai thiab tsis zoo. Nws yog qhov zoo tshaj plaws los siv tib xim xim ua los ntawm tib lub khw. Hom xim thawj hom yuav tsum yog me me kom ntau li ntau tau thaum lub sijhawm sib tov, txwv tsis pub lub ci ntsa iab ntawm tus cwj pwm uas yuav tsum tau muab qis dua, qhov xim ntawm qhov xim yuav raug cuam tshuam, thiab tus cwj mem xim yuav yog grey thiab tsis meej. Thaum lub sij hawm npaj thiab luam txheej txheem, qhov yuav tsum tau ua kom pom zoo kom zoo thiab ruaj khov, vim tias hloov ntau dhau lawm yuav ua kom muaj tus cwj pwm hloov qhov tob. Thaum lub sij hawm luam ntawv, nws tseem yog ib qho tsim nyog los xyuas qhov kev hloov ntawm cov xim ntawm cov substrate. Piv txwv li, yog tias lub xaj dawb ntawm daim ntawv hloov, qhov ci ntawm qhov chaw xim yuav hloov.
Yim, ua ib qho tseem ceeb ntawm txoj kev loj hlob ntawm flexo number case
Rau number case manufacturers, number case hauv lub khw flexo yog lub khw lag luam thiab muaj kev lag luam tsim nyog. Nyob rau hauv qhov kawg khoom lag luam, tus lej feem ntau yog siv rau hauv cov ntawv luam ntawm daim ntawv, daim duab, cov ntawv sau thiab cov ntawv sau kom tiav. Hauv kev ua ntawv luam, cov flexo inks yog nce. Tsis tas li ntawd, qhov ntxiv ntawm cov tshuab ua kua tshuab tau zoo zuj zus ntxiv ntawm cov kua xaw. Txoj kev tshawb ntawm cov khoom siv ntiv ntais tshiab thiab kev siv tshuaj ntxhua khaub ncaws tau ua kom zoo dua cov ntawv luam ntawm cov laminates luam tawm. Vos lub web printers tau siv cov lej cim rau ib lub sijhawm ntev. Raws li kev tiv thaiv ib puag ncig thiab kev noj qab haus huv ntawm cov luam ntawv, hom ntawv web-based teb tshuab luam ntawv kuj yog tam sim no tseem xav pleev xim. Tab sis rau yav tom ntej tom ntej, lub web-based teb chaws luam lag luam tseem muaj kev thov kom hnyav raws li cov phev. Yam tsawg kawg hauv peb lub tswv yim, inkjet yog lawv txoj kev xaiv qhov kawg kom ua raws li V0C (Organic Volatile) cov kev tswj thiab nqis peev ntau ntawm cov khoom lag luam. Los ntawm cov seem ntawm lub thoob plaws hauv lub voj voog, yog ib qho kev sib txawv hauv qhov dav web webmuab luam ntawv luam tawm yog kev ua haujlwm rau number case printing. Niaj hnub no cov cim muaj peev xwm yuav siv rau ib tug xov tooj ntawm substrates, feem ntau polyester films thiab laminate films.
Ink manufacturers xav txog tej teeb meem ntawm tej huab cua li hauv kev tsav tsheb hauv kev hloov mus ua kua. Luam thiab ntxuav tau pom zoo rau cov V0C emissions, ib puag ncig kev nyab xeeb, kev noj qab haus huv thiab kev ruaj ntseg ntawm cov luam ntawv, thiab txo cov nqi cia thiab nqi tsheb thauj mus los ua cov khoom tsis ua kom tsis tuaj yeem. Nrog rau qhov zoo ntawm cov khoom siv tshuaj thiab cov khoom siv ntxiv, cov khoom siv ntawm cov lej hauv lub cev muaj zog yuav muaj teebmeem rau cov qauv hnyav thiab lub zog ua kom muaj zog.
Lub neej yav tom ntej yog tias zaj duab xis luam yuav nce siv inkjet flexo siv hnyav-raws li cov ntawv flexo. Cov neeg tab tom nrhiav rau pem hauv ntej kom rov tshwm sim ntawm cov dej zoo zoo raws li zaj duab xis luam hauv qab. Txawm hais tias cov txiaj ntsim ntawm tus cwj pwm yog tus phooj ywg zoo, tus cwj mem tsis zoo txhais tau hais tias cov kuab tshuaj hauv lub cev yuav tawm ntawm lub khw flexo number case. Qhov zoo tshaj plaws ntawm tus number case yog V0C volatiles tsawg tsawg, tab sis tus neeg saib xyuas kev tshawb nrhiav thiab kev loj hlob hauv qee lub tuam txhab paub zoo tias txawv teb chaws ntseeg tias kev siv cov kuab-kuab ua kuab tsis tau txo rau qhov laj thawj no.
Siv xaj kua xem los yog number case, ib qho yog qhov teeb meem them nqi. Rau qee cov tuam txhab luam ntawv, kev siv tus lej rau tej thaj chaw vim li cas yuav ua rau cov nqi qis dua. Lwm cov qauv yog saib cov cai hauv zos tiv thaiv cov V0C emissions. Solvent-based inks yog me ntsis pheej yig dua yog tias koj tsis tas yuav nrog cov neeg tawg rog.
UV (ultraviolet) thiab EB (hluav taws xob nqaj hlau) txoj kab yees txuas mus ntxiv mus rau kev ua lag luam ntawm ink industry. Cov nplaum flexo tseem nyiam cov koob tshuaj nplaum rau sab hauv. Tiag, UV / EB technology kuj yog qhov teeb meem tseem ceeb tshaj plaws rau cov flexo packers. Vos web web daim ntawv ntaus cim tau los siv cov khoom siv hauv kev kho tau zoo thiab tau txais ib txoj haujlwm zoo hauv lub luam ntawv. Rau lwm tus luam ntawv, cov tshuab luam yeeb yuav tos kom cov koob thaij-tawg taus. Tseeb, ntawm qhov kev pom zoo ntawm cov ntawv luam tawm, flexo printing siv UV inks yog qhov zoo tshaj plaws luam ntawm tag nrho cov qauv kev luam phis tawm tam sim no, thiab nws yog superior flexo printing ntawm hnyav hauv thauv sab hauv thiab cov phev.
Ib yam li lwm txoj kev luam tawm, UV / EB inks fim obstacles. Lub tshuab UV / EB nyob rau hauv lub ntim thiab luam ntawv ua luam tau ntsib ntau yam kev cov nyom. Qhov chaw khuam siab tshaj plaws yog tias UV / EB siv tshuab tsis yoog rau kev luam cov txheej txheem. Ua ntej siv cov cuab yeej UV / EB. Cov tuam txhab luam ntawv yuav tsum tsim kho khoom siv, thiab txawm hais tias lawv cov nqi poob qis, lawv tseem yog cov peev txheej. Ntxiv mus, qhov teeb meem tus nqi tseem yog ib qho tseem ceeb uas tau plagued ntxiv txoj kev loj hlob ntawm cov hluav taws xob-kis hauv cov phev. Raw cov khoom thiab khoom siv tseem kim. Raws li cov kws txawj kwv yees tau, yog tias tus nqi ntawm cov zauv muaj peev xwm nyob ze rau lwm hom phev, ces kev ceev ntawm txoj kev loj hlob yuav yog ob peb zaug sai dua lwm cov phev.