Txog kua khoom ntim thiab tshuab luam ntawv
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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Xyoo tas los no, cov mis tshiab, kua mis, thiab ntau cov kua txiv hmab txiv ntoo haus thiab cov tshuaj yob hauv cov hnab yas ntim yas yas tau tshwm sim hauv lub khw. Txij li cov mis nyuj, kua mis, dej haus, thiab lwm yam yog haus cov dej tshiab, yuav tsum ua kom huv thiab kub yog qhov nruj heev. Yog li, muaj cov kev cai tshwj xeeb rau cov luam ntawv ntawm lub hnab, uas ua rau luam ntawv ntawm mis nyuj thiab haus dej ntim films sib txawv. Lwm cov qauv nta ntaub ntawv.
Cov yeeb yam ntawm cov kua nplaum yas yas ntim zaj duab xis
Cov khoom siv yees duab siv rau cov thev naus laus zis hauv hnab yas yog cov polyethylene (PE) co-extruded zaj duab xis, uas yuav tsum ua kom tau raws li qhov yuav tsum tau ntim cov ntawv luam tawm, ua, cia thiab kev thauj mus los. Los ntawm cov tsos ntawm cov yeeb yaj duab} tau muab faib ua peb pawg: cov xim dub dawb PE film, dub thiab dawb co-extruded PE zaj duab xis, zog kub ua noj ua PE zaj duab xis.
Cov xim mos-xim dawb PE yog siv los ua cov kua dej yooj yim xws li mis, kua ntsev thiab kua txiv hmab txiv ntoo. Qhov co-extrusion cua tshuab zaj duab xis masterbatch yog li ntawm LDPE, LLDPE thiab cov khoom dawb huv. Kev ua yeeb yam ntawm cov yeeb yaj kiab kuj yog cov neeg pluag tsis zoo, qhov ntsuas ntawm qhov ntsuas tsis sov tshaj 90 ° C, lub neej txuag tsis tshua tseem ceeb; feem ntau siv nyob rau hauv phau ntawv los yog qis-puv cov khoom siv. Piv txwv, qib qis rau me nyuam, lub txee niaj hnub mus txog peb hnub, ze ntawm kev muag khoom.
Dub thiab dawb zaj duab xis yog feem ntau peb txheej, thiab qhov siab tshaj plaws yog tsib txheej. Thaum cov yeeb yaj kiab raug cua tshuab, tus txheej txheem txuas ntxiv nruab nrab yog coextruded nrog ib tus cwj pwm tswj tuav. Tus tswv tsev dub ntawm lub tshav kub-kaw hauv txheej txheej los mus thaiv lub teeb thiab thaiv ultraviolet rays. Vim yog lub hav zoov uas muaj cov kab tshuam theem nrab, nws yog tsim los ntawm masterbatch xws li E-VA thiab EVAL. Lub txee lub neej ntawm lub txheem ntev dua thiab tuaj yeem tswj tau ntau dua 30 hnub. Txawm li cas los xij, muaj qee qhov peb theem ntawm cov duab dub thiab dawb ntawm lub lag luam, thiab cov txheej nruab nrab tsis yog Nws yog tsim los ntawm tus thawj xibfwb teeb meem, yog li ntawd cov xim dub thiab dawb kuj yog nyob rau hauv thawj qeb. Ntawm peb hom kev yeeb yam, dub thiab dawb films yog cov feem ntau tsis nyiam luam tawm haujlwm. Thaum cov xim dub thiab dawb tsim, tus nqi ntawm tus neeg qis qis thiab lub ci ntsa iab yog qhov loj tshaj plaws, yog li ua kom tau raws li qhov yuav tsum tau hais tias cov xim dub thiab dawb kuj muaj me me kev txhuam coefficient rau high-speed automatic filling tshuab, thiab ntxiv oily quav tshuaj yog tsis tshua muaj disadvantageous rau xim printing txheej txheem, thiab txo qhov txo yog zoo heev txo. Adhesion zog ntawm tus number case txheej. Rau feem ntau high-speed tuaj puv cav, ib lub cev kom tsis muaj menyuam nruab nrog cov roj kub hnyiab tau muab siv rau kev siv lub thev naus laus zis. Nyob rau hauv cov ntaub ntawv no, xim yuav tsum tau them rau cov nyhuv ntawm cov kab mob sterilization rau cov ink number txheej vim hais tias qee cov pigments hauv tus cwj mem muaj oxidation tsis kam. Cov kev kuaj pom tau hais tias qhov oxidation ntawm hydrogen peroxide yog ib qho zoo tuaj nrog kev nce kub. Yog li no, xim luam ntawv yuav tsum to taub meej txog cov kev lag luam tom qab ua haujlwm ntawm cov neeg siv khoom thaum muab cov khoom ntim.
Qhov kub siab ua kub ua noj PE film tsuas yog siv rau cov khoom siv mis nyuj xws li yoghurt thiab kua mis. Cov txheem yog sterilized tom qab txhaws, thiab ultra-kub kub sterilization txheej txheem yog saws. Qhov nyuaj co-extruded PE zaj duab xis yog tsim los ntawm HDPE masterbatch, thiab ib feem ntawm LDPE thiab colored colored masterbatch. Yog li no, cov PE zaj duab xis muaj qhov kub siab ua haujlwm zoo thiab tuaj yeem ua raws li qhov yuav tsum tau ua ntawm ultra-high temperature sterilization. Vim yog qhov sib txawv ntawm qhov sib txawv thaum lub cev kom tsis tuaj yeem, nws yog qhov yooj yim los tsim "lub hnab expansion". Yog li ntawd, nws yuav tsum tau kom cov PE zaj duab xis tsis tsuas muaj cua kub zoo-sealing zog, tab sis kuj tensile zog ntawm zaj duab xis zoo. Cov xim luam yeeb muag feem ntau yog siv "peb lub tsheb pov tseg" los yog "Cov neeg ruam ntawm ib kauj taw" qhov kev sim.
Naj hla luam tawm rau cov hnab yas txig yas muag yas
Cov kua dej ntim cov dej ntim xws li cov mis thiab dej haus feem ntau yog luam tawm ntawm qhov luam tawm. Feem ntau ntawm lawv yog tsim los ntawm polyamide los yog hloov kho hauv cov ntaub ntawv txuas. Cov phev yog qhov ntxov tshaj plaws nyob rau hauv Suav teb tus gravure inks, thiab cov txheej txheem ntau lawm yog tus muaj kev paub tab thiab zoo meej. Hom khaub noom no yog tsim rau cov yeeb yaj kiab thiab polypropylene. Lub adhesion ntawm tus number case txheej zoo thiab lub gloss zoo. Txawm li cas los xij, cov xaum ntawv ntawm polyamide muaj cov dej tsis haum, tsis tuaj yeem ua rau roj, thiab tsis tuaj yeem ua kom khov thiab lwm cov kev ua haujlwm tsis zoo. Hom no muaj cwj pwm luam tawm thaum lub caij ntuj sov thaum muaj kev kub ntxhov siab, uas ua rau ua rau lub cev thiab npliag. Thaum luam tawm tsawg sov nyob rau lub caij ntuj no, nws yuav khov.
Lub pob dej ua rau kub kub cev los yog cia kom khov thaum lub sij hawm xa cov txheej txheem ntawm kev sau, kev qiv thiab cia. Yog li ntawd, qhov tsis xws luag xws li polyamide ntim hauv tshuab luam tawm ntog ua tsis tau raws li cov dej ntim, thiab xim tshuab luam ntawv uas ua rau lub pob ua kua Tsis siv cov polyamide ntim hauv tshuab luam ntawv yuav tsum siv rau ntau hom kev - PE zaj duab xis. Tam sim no, cov kua dej ntim rau hauv khw feem ntau yog polyesters thiab hloov khoom, uas yog ib leeg-kua thiab ob-kua reactive. Ink.
Vim tias cov mis thiab dej haus rau cov tib neeg tau noj, ntim films, printing inks, etc. yuav tsum tau ua raws li cov cai ntawm ntim cov ntaub ntawv kev nyiam huv thiab cov khoom noj khoom haus cov cai. Yog li, cov thev rau hauv cov ntawv luam tawm yuav tsum tsis muaj tshuaj lom neeg, tsis muaj ntxhiab, thiab muaj cov kua dej tsawg dua. Tsis muaj tshuaj lom hnyav hlau thiab lwm yam uas yuav tsum muaj. Yuav kom tsis txhob muaj cov kua mis thiab dej haus, thiab ua kom raug mob rau cov neeg siv khoom noj.
Raws li cov kev cai saum toj no rau cov ntawv cim xaj, nws yog ib qho tsim nyog yuav xaiv ib tug number case uas muaj kev ua tau zoo. Feem ntau, cov ntawv luam tawm yog ob daim npog qhov ncauj luam tawm ntawm tus qauv luam yeeb, thiab kho cov kua roj vanish thaum tom qab luam ntawv number case, uas yog tus nqi siab thiab cumbersome hauv tus txheej txheem. Tam sim no, qhov dav siv thiab zoo dua yog Super Lifu 313A ntu luam tawm cim thiab lub neej Super Life 314 hom luam uas tsim los ntawm Zhejiang Tshiab Oriental Ink Group Co., uas tsis tas yuav tsum tau coated nrog varnish, tsuas hauv luam ntawv number case Muaj ntau npaum li cas ntawm cov tshuab hardener ntxiv, thiab tom qab 24 teev ntawm kev laus, nws tuaj yeem yog haus dej-resistant, resistant to hydrogen peroxide thiab raug txhuam.
Cov phaw thib ob yog cov tshwj xeeb luam hauv qab tsim los rau cov kua mis thiab haus dej ntim films, thiab muaj zoo affinity nrog polyethylene zaj duab xis, zoo gloss ntawm number case txheej, siab adhesion ceev, kub kub, roj thiab ua haujlwm. Dej raws cov khoom muaj kuj zoo heev; nws yog qhov zoo rau cov dej ntim ntim zaj duab xis hauv xws li mis haus thiab dej haus. Lub neej Super Life 313A yog tus cwj mem kua-tshuaj kua roj naj npawb uas muaj peev xwm tiv tau npau npau 100 ° C thiab tuaj yeem tiv thaiv tau 60% los yog tsawg dua ntawm cov tshuaj hydrogen peroxide. Chaolifu 314 npoo luam tawm number case yog ob-kua kua tshuaj feem ntau ntawm cov roj pleev hloov uas muaj peev xwm tuaj yeem tiv thaiv sterilisation ntawm 121 ° C / 40 feeb, thiab tuaj yeem txheem hydrogen peroxide sterilization ntawm 80 ° C thiab cov concentration ntawm 35%. Raws li oxidation kuj sim ntawm Chaolifu 314 ob hom kua tshuaj kua mem kua, cov duab luam tawm tom qab laus 24 lub sij hawm raug raus hauv hydrogen peroxide ntawm qhov kub ntawm 45 ° C txog 50 ° C thiab ib qho concentration ntawm 35% rau li 15 nas this , thiab tom qab ntawd coj tawm thiab kuaj pom. Cov cwj mem xaj muaj kev nplua zoo thiab yeej tsis muaj xim txawv, thiab tuaj yeem ua tau raws li cov qauv ntawm cov dej ntim xws li mis haus thiab dej haus.
(2) Kev tswj thiab kev tswj ntawm tus number case ua
1. Pom zoo ntawm tus cwj mem
Viscosity yog qhov tseem ceeb tshaj plaws ntawm kev tswj nyob rau hauv daim ntawv thov number case. Nws ncaj qha rau txoj kev hloov cov ntaub ntawv ntawm tus lej thiab qhov zoo ntawm cov teeb meem luam tawm. Vim li no, tus tswj ntawm tus lej viscosity thaum luam ntawv tseem ceeb heev, feem ntau tswj tau ntawm 15-20 vib nas this. Tus cwj mem ntawm tus cwj pwm xiam hoob khov kuj tsis tshua muaj siab, uas yog yooj yim ua rau lub hauv siab, kev khaus thiab khov xaj nthuav tawm hauv duab nraaj. Conversely, yog hais tias tus viscosity siab dhau, kev ua tau zoo ntawm tus number case yog pluag, thiab nws yog ib qho yooj yim los tsim tshuaj ntsuab, phaj qhuav phenomenon thiab tsis muaj cwj mem tsis xyaw rau ntawm thaj chaw loj. Faults xws li tawg kab nyias.
2. Txhuav ntawm tus cwj mem
Kev ua kom zis ntawm tus cwj mem qhuav tseem yog ib qho tseem ceeb ntsuas los ntsuas qhov zoo thiab ua tau ntawm tus cwj mem. Tswj kev ziab tus qauv ntawm tus cwj pwm yog qhov tsim nyog yuav tau txais cov ntawv luam tawm zoo. Qhov ziab ziab ntawm tus cwj pwm zis yog ceev dhau, thiab lub phuam ntim tsis ua hauj lwm yuav tsum muaj tshwm sim, tab sis qhov ziab zis ntawm tus cwj mem qis qeeb heev, thiab qaum ntawm cov ntawv tseem ceeb yog qias neeg. Lub hauv paus ntsiab lus ntawm kev xaiv qhov ziab ceev ntawm tus cwj pwm yog tias nyob rau hauv cov kab mob ntawm cov ntawv luam tawm, tus cwj mem yuav tsum txaus ua ntej nkag mus rau tom ntej printing xim thiab ua ntej rewinding, tab sis nws tsis tuaj ziab ntawm lub phaj ntawv. Cov cwj mem muab luam tawm rau hauv cov ntawv ntim zaj duab xis yog cov cwj mem xees hnyav, nyob rau hauv cov cuab yeej ziab no feem ntau yog nyob ntawm qhov kev ceev ceev ntawm qhov hnyav. Vim li no, hauv qhov ntau lawm, qhov sib ntxiv ntawm cov tshuaj hnyav yuav tsum tau nruj nruj, thiab ib qho tsim nyog ntawm qeeb-ziab tuaj yeem muab ntxiv rau tus cwj pwm raws li tej yam kev mob. Qhov hnyav los sis qhov hnyav ceev ziab los kho qhov ceev kom qhuav ntawm tus number case kom paub tseeb tias tus cwj mem yog qhuav qhuav kom tsis txhob muaj "tsis muaj tseeb" tshwm sim. Feem ntau, thaum luam ntawv nrog Super Lifu 314 ob-hom tshuaj kua mem kua, number case viscosity feem ntau tswj tau li ntawm 15 vib nas this nyob rau hauv ib txwm muaj kev mob ntawm kev luam ntawv ceev txog 80/00. Raws li kev xyaum, qhov yooj yim piv ntawm cov sib xyaw xyaw siv yog: Butanone: Toluene: Butyl ester = 4: 3.5: 2.5, uas ua kom zoo dua zoo luam.