Lus Tshaj Tawm Txog Kev Tshaj Tawm Ntawm Cov Nqa Duav Hauv Cov Naj Nqi
Peb yog ib lub lag luam loj hauv Shenzhen Tuam Tshoj. Peb muaj cov phau ntawv luam tawm, phau ntawv nyuaj, 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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Ua ntej. Txheeb xyuas
Cov kua qaub ntawm cov xaum xoom qaum yog raug xa mus ua ib qho binder; cov khoom tivthaiv yog ib tug ximxoo (xim lossis dye) thiab ntau lub koom haum. Cov cwj mem rau tus cwj mem zis yog xub siv ua tus cab rau lub pigment, thiab cov khoom ua tau zoo xws li cov hmoov pig plua plav tov thiab tov, thiab cov khoom uas muaj xim zoo nkaus li nyob rau hauv, thiab nws yog qhov yooj yim dua thiab hauv av kom muaj ntsis fineness ntawm kev sib tsoo tshuab los ntawm virtue ntawm nws wetting kev txiav txim. Qhov thib ob, ua ib khub, qhov pigment yog tusyees qhwv los ntawm lub pob cawv thiab thaum kawg yuav raug muab tso rau saum npoo ntawm lub substrate kom ua tiav lub hom phiaj ntawm kev nthuav cov qauv; nyob rau tib lub sij hawm, cia siab rau nws qhov kev sib txuas, tus number case yuav kis tau thiab pauv mus rau lub hauv paus ntawm lub tshuab luam ntawv. Ntawm zaj duab xis lossis ntawv; Thaum kawg, ntawm cov khoom luam tawm, tus binder kuj ua raws li ib cov yeeb yaj kiab thiab nws nthuav cov lus tsim nyog, thiab txawm muaj kev tiv thaiv ntawm kev tiv thaiv cov substrate.
Nws tuaj yeem pom tias cov duab rau cov cwj mem zis yog cov cab cov xim hauv tus cwj mem, uas yog cov ntaub ntawv tseem ceeb ntawm tus cwj mem. Qhov zoo ntawm tus number case yuav ncaj qha mus rau kev ua tau zoo ntawm tus cwj mem, vim hais tias tus binder txiav txim siab tus viscosity thiab viscosity ntawm tus number case rau ntau. Dryness, fluidity thiab lwm yam khoom. Yuav kom tau cov phom sij zoo, nws yog ib qho tsim nyog yuav tau siv cov phom sij zoo rau cov tawv nqaij.
Thib ob, cov nyhuv ntawm resin rau cov lej cim
1, number case adhesion ceev nrooj
Lub qhov cim ntawm tus cwj pwm thiab cov substrate tsuas yog siv cov tshuaj quab yuam (piv txwv li, quab yuam ntawm atoms), kev sib cuam tshuam ntawm molecules (hydrogen bond force thiab van der Waals quab yuam), qhov sib txuas ntawm electrostatic attraction zog thiab cov neeg ua haujlwm dag zog. Qhov tseem ceeb ntawm cov rog no yog kev sib cuam tshuam ntawm cov phau ntawv caj dab thiab lub substrate. Rau txawv substrates, xaiv ntawm haum cob binders tau ua tus yuam sij. Feem ntau hais lus, rau cov non-ncov qaum teb substrates xws li PE thiab PP, txawm tias nrog kev kho mob saum npoo, qhov kev nruj ntawm qhov chaw tsuas tuaj txog 38 dyne. Lub non-hnyuv ntxaib ntxaib xws li siv cov chlorine polypropylene cob binder yuav tsum siv; thiab rau ib qho chaw npoo npoo av npoo av xws li tus tsiaj TSW lossis PA, siv cov ntaub nplaum polyurethane siv tau. Naj nub nuav, lub thev naj nub ntawm lub thauv poliurethane muaj peev xwm daws tau qhov teeb meem ntawm kev siv zug ntawm dlej qaum sab dauv los ntawm kev muab qee yaam ntawm kws ua rua PP hab PE, los yog siv cov chlorine polypropylene ua dlej ua ke nrog polyurethane resin. Nws tau los daws qhov teeb meem ntawm ntau yam ntawm ib phau ntawv pov thawj, thiab tib lub sij hawm daws cov teeb meem uas qhov seem ntawm toluene hnyav uas yog nws muaj tshwm sim rau cov tshuaj chlorine polypropylene li ib binder ntau heev. Nyob rau hnub no tus ntsuab kev tiv thaiv ib puag ncig, qhov kev kov yeej no tseem ceeb heev.
Nws muaj peev xwm pom tau tias cov phau ntawv pov thawj raws li ib qho kev sib faib thiab ntxais nruab nrab ntawm cov cwj pwm kuj tseem muab cov kab mob tseem ceeb thiab tseem ceeb ua rau ntawm tus cwj mem thiab lub substrate, thiab yog ib qho ntawm cov cim tseem ceeb ntawm tus cwj mem.
2, lub plhaub tinting ntawm tus number case
Organic pigments yog cov ntaub ntawv yooj yim tshaj plaws rau cov xim thaij, tab sis raws li cov plhom tawm mus rau saum npoo ntawm cov substrate, cov xim uas pom tau rau tus neeg tau txais kev pab cuam yuav txawv dua los ntawm cov xim ntawm nws tus kheej. Yog vim li cas yog vim mus rau qhov tseeb uas nyob rau hauv tus number case, cov xim feem ntau tsis tuaj yeem nyias tab sis cov dispersed nyob hauv nruab nrab ntawm tus khawm. Qhov me me, qhov zoo tshaj plaws wetting thiab dispersing lub xeev ntawm ib cov xim pigment yog kiag li encapsulated hauv lub bass resin thiab adhered rau ntawm lub substrate. Cov xim tshwm sim yog qhov kaj yog teeb meem ntawm qhov npoo ntawm qhwv xim los ntawm cov duab zaj duab xis txheej thiab xa mus rau tus neeg siv khoom lub qhov muag los ntawm kev xav. Lub laj kab ntawm daim tawv nqaij yog qhov zoo los sis qhov phem, thiab qhov loj ntawm cov xim tsuas yog cuam tshuam cov xim ntawm cov xim txawv xim. Nyob rau tib lub sij hawm, qhov txaus ntawm cov duab ua rau ntub thiab kis cov pigment ncaj qha mus cuam tshuam lub uniform encapsulation ntawm tus cob rau ntawm cov pigment, thiab kuj cuam tshuam cov hue ntawm tus number case xwb.
3, kev tshem tawm tawm
Anti-stickiness yog ib qho tseem ceeb qhia lub cev ntawm cov ntawv luam tawm hauv qab. Gravure luam ntawv yog ib txoj kev luam tawm xov xwm uas muaj cov khoom ntim khoom nruab nrab, zoo nkauj dua qub, thiab ceev ntawv ceev ceev. Feem ntau ntawm cov phev hom tshuaj siv yog hom hnyav rau hauv tshuab raj ua kom qhuav. Tom qab tus cwj mem muab xa mus rau lub tshuab luam ntawv los ntawm lub tshuab luam ntawv, tus cwj mem yog kis los ntawm qhov ziab qhov quav, thiab cov organic hnyav tau sai sai thiab ua kom qhuav. Nws yog qhov paub zoo tias thaum naam yog raug mob los ntawm kev kub siab ziab, qhov kub thiab txias ntawm cov luam ntawv yog feem ntau ntawm 40 ° C thiab 60 ° C. Tib lub sijhawm, yog tsis zoo vim yog lub siab poob siab, loj winding yog tshwm sim. Cov xwm txheej ua tau zoo ua rau cov neeg tsis muaj nyiaj txiag poob qis rau cov neeg siv khoom.
Tus cwj mem tawm rov qab ntawm tus cwj mem los ntawm cov cwj mem rov qab yog zoo thiab tsis zoo, thiab nws yog ncaj qha ntsig txog cov yeeb yaj kiab uas muaj cov kab thaij thiab cov khoom siv ntawm cov duab ntxaum, ntxiv rau qhov meej tom qab evaporation ntawm qhov hnyav thaum lub sijhawm luam ntawv. Cov duab thaij duab zoo nkauj ua tau zoo tshaj plaws rau cov cwj pwm, thiab tom qab qhov hnyav yog volatilized thiab zoo qhuav, tus zaj yeeb yaj kiab tsim kom txhij txhua, thiab cov khoom thaiv thaiv tsis zoo tom qab winding.
4, resolubility
Hauv cov ntawv nyeem gravure, number case resolubility kuj yog ib qho tseem ceeb qhia txog kev txiav txim xyuas cov xaum ua haujlwm. Qhov tshwj xeeb tshaj yog nyob rau hauv cov xim muaj xim luam tawm, tus qauv tsim muaj peev xwm tsis tsuas yog ua kom cov xim xim txaus, tab sis kuj daws tau qhov teeb meem ntawm lub thaiv phaj thiab cov xim ntawm cov ntawv luam ntawm lub luam ntawv.
Hauv cov txheej txheem ntawm cov xim xim luam ntawv, raws li cov tseev kom muaj xim tone, tob ntawm tus number case ntawm tes ntawm lub phaj luam tawm txawv, tus nqi ntawm number case muab xa mus rau saum npoo ntawm lub substrate kuj txawv, ntim ntawm tus number case qhov loj, thiab tus nqi ntawm cov ntawv sau txog tus txheej txheem luam ntawv yog loj. Lub thickness ntawm zaj duab xis txheej pauv mus rau lub substrate yog me me; qhov ntim ntawm tus cwj pwm taub hau me me, tus nqi ntawm tus number case yog me me, thiab zaj duab xis txheej pauv mus rau lub substrate yog nyias. Yog li, ib daim duab tuab, muaj yeeb yuj, thiab muaj yeeb yuj thaij yog tsim los ntawm daim ntawv lo. Nyob rau hauv tus number case uas tsis muaj resolubility, cov kua residual residue tsis yooj yim rov yaj los ntawm tus number case nyob rau hauv tus number case tank vim muaj lub siab ceev rotation ntawm lub nruas tank, thiab tus number case ntau thiab ntau ntiav, uas nws thiaj li ua rau kev sib tsoo ntawm kev sib cav. Rau re-solubility inks, cov ntawv luam tawm tus cwj mem yog yooj yim neej los ntawm tus xaj xaim rau hauv cov ntawv phom sij thaum lub txheej txheem overprinting, uas ua rau cov teeb meem kev cim khaub lig-xim.
5, cia ruaj ntseg
Tom qab tus cwj mem muab cia rau ib lub sijhawm, lub sab nrig ntawm lub thawv yog nyias, qhov tsis muaj zog, thiab cov xim thiab cov concentration kuj tsis zoo; qhov qis dua yog tuab, cov viscosity loj, thiab cov xim thiab cov concentration kuj zoo. Gravure printing inks yog cov kua dej khov thiab khov dej vim cov ploog tsis zoo ntawm cov pigments hauv cov khob; qhov ceev ntawm pigments lossis fillers loj dhau lawm; nag lossis daus yog nplaim nag hlob hauv lub sijhawm ntev. Tag nrho cov teeb meem no muaj peev xwm cuam tshuam kev ua tau zoo ntawm tus number case. Txawm tias tom qab siab tag, lub xeev ntawm tus cwj pwm yuav tsis muab kev xav tsis zoo rau tus qhua, thiab tib lub sij hawm nce lub nra ntawm tus neeg ua haujlwm, tsis cuam tshuam qhov kev siv ntawm kev siv.