Yuav ua li cas txhim kho UV Ink Adhesion: muaj kev ua tiav cov tswv yim
May 14, 2025
1. Ua kom zoo rau kev luam ntawv rau UV number case kho
2. Corona kev kho: Txhim Kho Cov Zej Zog Nto Zog
3. UV Ink Adhesion cov kev txhawb nqa: Primers rau kev tshwj xeeb substrates
4. Txhim kho UV kho rau qhov siab tshaj plaws adhesion
5. Kev siv pretreatment pretreatment pretreatices rau cov kev tshwj xeeb substrates
6.How los txiav txim siab UV Ink Adhesion Promoter rau ib qho meej meej?
1. Ua kom zoo rau kev luam ntawv rau UV number case kho
Lub chaw luam tawm ib puag ncig ua ib lub hauv paus lub luag haujlwm hauv UV number case adhesion, tshwj xeeb tshaj kub thiab vaum tswj.
1.1 qhov kub cuam tshuam rau kev kho kev ua tau zoo
UV inks cia siab rau cov photoinitiators rau kev ua rau lub polymerization ua rau lub teeb. Ntawm qhov kub qis dua 20 degree (68 degree f), cov duab thaij duab no ua cov nquag ua haujlwm, ua rau kev ua tiav. Txawm hais tias UV mem tes zoo li "tam sim ntawd" harden, tsawg kub tuaj yeem ua rau:
Txo cov molecular hla kev sib txuas-txuas: ua rau muaj cov ntawv cog lus tsis muaj zog sib xyaw nrog lub substrate.
Ncua cov kuab tshuaj evaporation: rau hybrid UV inks, qeeb cov kuab tshuaj tawm tuaj yeem tsim cov dej noo, tsis muaj zog.
Cov kev kub siab tshaj plaws rau UV Inkjet Printing yog 25 degree (77 degree f) mus rau 30 degree ({}} degree f), qhov twg:
Polymerization cov tshuaj tiv thaiv ua tiav qhov siab tshaj plaws.
Nto nro ntawm tus mem kua matches substrate lub zog kom zoo dua.
Kev kawm los ntawm FLAAR cov ntaub ntawv pom tias luam tawm ntawm 28 qib nce adhesion los ntawm 35% ntawm PP muab rau 15 degree, hais txog qhov tseem ceeb ntawm kev tswj hwm thermal.
1.2 Avity Tswj rau Nto Wettability
Tus txheeb ze siab (Rh) tshaj 65% tuaj yeem qhia cov dej noo nto ntawm cov tsis muaj kev tiv thaiv, tsim kom muaj kev cuam tshuam ntawm number case thiab cov khoom siv. Conversely, puv hauv qab 30% tuaj yeem tsim hluav taws xob zoo li qub, ua rau lub kua dej ntws los rau repel lossis tawg. Tswj 40-60% rh rau:
Xyuas kom meej ink kis tau (hu rau kaum sab xis <30 degree).
Tiv thaiv kev txhim kho electrostatic uas cuam tshuam cov qauv luam tawm.
2. Corona kev kho: Txhim Kho Cov Zej Zog Nto Zog
Corona kev kho yog siv cov kev kho mob ua ntej los txhim kho adhesion ntawm cov qauv hluav taws xob qis los ntawm kev hloov kho lawv cov qauv molecular.
2.1 Yuav ua li cas Corona Kev Kho Mob Ua Haujlwm
Siv High-voltage (5-15 kv) hluav taws xob paug tawm hauv ib puag ncig kev tswj hwm, Corona Kev Kho Mob:
Kev rhuav cov qauv molecular: ntawm cov substrates zoo li PE (lub zog saum npoo sib xws
Nce nto sib zog: 38-42} dynes \/ cm, uas phim rau saum npoo nro ntawm feem ntau UV inks ({1}} dynes \/ cm).
Txhim kho cov wettability: tso cai rau kis tusyees thiab tsim cov zog loj thiab muaj zog van der waitals rog nrog lub substrate.
2.2 Substrate-cov ntawv thov tshwj xeeb
PE \/ PP Films: tseem ceeb rau cov ntawv ntim khoom; Tsis tau kho PE tuaj yeem pom 50% Ink Peel-off, thaum kho cov chaw ua tiav 95% adhesion ({} b rating).
Nylon textiles: txhim kho ink nkag mus rau hauv cov qauv sib txawv, txo kev tawg thaum lub sij hawm ncab.
Tsiaj hwj: npaj cov chaw rau vibrant, kos-resistant prints ntawm cov ntim haus.
2.3 Kev coj ua zoo tshaj plaws rau kev kho Corona
Kev sib xws yog tus yuam sij hauv 24 teev ntawm kev luam ntawv, raws li lub zog saum npoo yuav txo tau raws sijhawm vim oxidation.
Kho lub zog thiab nrawm: Lub Zog Hluav Taws Xob (15 kV) rau cov tuab tuab; Slower Conveyor Speeds ({1-3 m \/ min) rau cov ntaub ntawv muag heev kom tsis txhob muaj kev puas tsuaj saum npoo.
3. UV Ink Adhesion cov kev txhawb nqa: Primers rau kev tshwj xeeb substrates
Adhesion txhawb nqa, lossis UV primers, ua raws li tus choj nruab nrab ntawm substrates thiab number case, daws cov teeb meem tseem ceeb: kev tsis sib thooj.
3.1 Cov Txheej Txheem ntawm cov ntawv tso cai
Primers yog tus choj tseem ceeb ntawm substrate thiab UV number case, txhim kho adhesion los ntawm peb qhov tshwj xeeb thiab ua kom zoo dua qub. Ua ntej, kev tu kom huv deg tshem tawm cov khoom tsis huv uas tabkaum adhesion. Thaum lub sijhawm tsim khoom lossis chaw cia khoom, substrates feem ntau tsub roj, plua plav tawm, lossis tso tawm cov neeg sawv cev. Cov tshuaj no ua cov txheej txheem sab nraud uas tiv thaiv kev sib chwv ncaj qha ntawm tus mem kua thiab cov txheej txheem. Primers muaj cov kuab tshuaj thiab surfactants uas yaj los ntawm encapsulate cov impurities los xyuas kom meej. Piv txwv li, hauv kev luam tawm ntawm cov khoom lag luam hauv automotive, Primip tuaj yeem tshem tawm cov roj siav ntawm cov hlau, tso cai UV inks kom ncaj ncaj rau lub substrate.
Zog txhim kho kev kov yeej cov kev cov nyom ntawm cov hluav taws xob tsawg. Cov ntaub ntawv xws li polyethylene (PE) thiab polypropylene (PP) feem ntau muaj qhov nro rau UV ({1}} dynes \/ cm) mus kis thiab ua kom zoo. Primers muaj cov teeb hluav taws xob siab zog (45-50 dynes \/ cm) tsho tiv no lub substrate, hloov nws cov khoom ntiag tug. Los ntawm kev nce lub zog zoo ntawm cov txheej txheem, cov ntawv tso cai no kom ntub dej saum npoo, Txhawb Zog Lub Zog Hluav Taws Xob thiab cov tshuaj lom neeg. Cov txheej txheem no yog qhov tseem ceeb rau kev siv daim ntawv thov ntim, raws li PE Films yuav tsum muaj kev kho mob tseem ceeb thiab ntev-luam ntawv.
Cov tshuab ua lag luam siv tau siv tag nrho ntawm lub cev qauv ntawm tus thawj. Ntxeem tau los yog micro-beel primers tuaj yeem tsim cov ntawv sau ua ntej ntawm qib me me, uas yog qhov tshwj xeeb rau cov iav du li iav, hlau lossis ci ntsa iab plastics. Tom qab UV number case yog kho tau cov kab noj hniav me me thiab cov protrusions, sib sau cov interwoven network kom khov kho cov number case. Cov neeg kho mob no ua kom zoo dua cov tshuaj nplaum thiab txhim kho nws lub peev xwm los tiv thaiv, khoov lossis ib puag ncig kev ntxhov siab. Ntawm lub iav screen ntawm lub xov tooj smartphone, ib qho primer nrog nano-nplai roughness tuaj yeem txhim kho lub durability ntawm luam tawm logos thiab tiv thaiv tus mem kua los ntawm kev siv cov ntawv siv txhua hnub.
3.2 Hom Adhesion Cov Txhawb Nqa
| Substrate | Pom zoo Primer | Cov Nta Tseem Ceeb |
|---|---|---|
| Iav \/ Lub Ceramics | NATRON G1 PRIMER | Cov khoom seem ua ke; tsim cov kev sib koom ua ke nrog cov chaw so suab paj nruag; tshav kub-resistant. |
| Hlau (Al \/ Hlau) | Natron Fi Promoter | Muaj zinc phosphate rau kev tiv thaiv corrosion; Txhim kho cov nplaum ntawm coated \/ uncoated hlau. |
| Polyolefins (PE \/ PP) | Chrome-dawb primers | Siv hloov polyolefin resins kom phim substrate chemistry; ua raws li rohs. |
| Tritan \/ Acrylic | Polyurethane-Raws li cov ntawv | Saj zawg zog zaj duab xis; Tsis kam tawg ntawm bendable substrates. |
3.3 Thov Cov Lus Qhia
Nyias, uniform txheej: Siv daim ntaub khib nyiab khib, phom tsuag, lossis cov xaim xaim hluav taws xob: {{1} {1}} microns).
Lub sijhawm ziab: Tso lub sijhawm qhuav: Tso 1-5 feeb rau cov kuab tshuaj hauv cov ntawv sau ua ntej luam ntawv (dej raws cov dej (cov dej-ntsuas-raws li).
4. Txhim kho UV kho rau qhov siab tshaj plaws adhesion
Txawm tias nrog kev kho mob ua tiav, kev kho tsis tiav yuav cuam tshuam adchium. Caj dab kho cov ntsiab lus muaj xws li:
4.1 UV teeb fais fab thiab wavelength
Cov roj mercurity mercurity: tsim tawm dav-spectrum UV (200-400}}}}}}}}} saib cov khaubncaws sab nraud. Ua kom muaj zog los ntawm 80-120 w \/ cm rau ntom xim zoo li dawb lossis xim av inks.
LED UV teeb txawb: lub phiaj xwm nthwv dej (365\/395 nm), muaj zog-siv, thiab txias. Kho hwj chim siv zog rau 6-10 w \/ cm² rau kev sib txuas ntawm kev sib txuas lus zoo li PVC.
4.2 Kev Luam Ntawv Kev Luam Ntawv thiab Raug Sij Hawm
SLOWER SAU SAU EXKS CEEV (piv txwv li, 3m \/ min thiab \/ min) Tso cai UV kis tau ntev, nce lub zog nqus los ntawm {2}}%. Qhov no yog qhov tseem ceeb rau:
Ntau txheej prints: txhua txheej xav tau los kho kom txaus rau txoj kev sib khi nrog tom ntej.
High-opacity inks: Thicker tso yuav tsum muaj zog ntau (800-1200 mj \/ cmo} mj \/ cm}
4.3 Kho Lub Cev Kho Mob
Teeb pib ua ntu zus: cov teeb txawb tsis zoo ua rau kho tau tsis zoo; Txheeb xyuas nrog lub zog hluav taws xob (piv txwv li, eit UV zog puck) txhua hli.
Lim tu: Pluah ua rau cov neeg muaj kev cuam tshuam tuaj yeem txo UV tawm los ntawm 20%; Huv lim rau txhua lub limtiam nrog cawv iopropyl.
5. Kev siv pretreatment pretreatment pretreatices rau cov kev tshwj xeeb substrates
Rau cov ntaub ntawv nyuaj nyuaj, ua ke ntau txoj hauv kev:
5.1 Plasma Kev Kho Mob
Zoo ib yam li Corona tab sis siv cov ntshav hluav taws xob tsawg (argon \/ helium), zoo tagnrho rau:
Nano-coatings: tsim cov txheej txheem atomic-qib ua kom txog teflon lossis silicone.
3D khoom: Kev kho mob sib xws ntawm cov geometicies zoo li qhov chaw tsheb.
5.2 kev hloov kho tshuab deg deg
Sandblasting: Rau cov hlau, tsim cov hlau, roughness (ra 0}} μm) kom txhim kho cov neeg kho tshuab adhesion.
Laser etching: ua kom nto nto qha rau cov plastics, txhim kho number case khaws cia los ntawm 20-30%.
Xaus: Ib qho tagnrho rau UV Ink Adhesion
Kev daws IV Ink Adhesion yuav tsum muaj kev sib xyaw ua ntej, ib puag ncig tswj, thiab kev kho kom zoo. Pib nrog kev ntsuas sab hauv (ntsuas hluav taws xob ntev siv DYNECH), xaiv txoj cai ua ntej (Corona, thawj hom kev kho kom haum raws li number case thiab txheej tuab. Los ntawm kev daws txhua kauj ruam hauv cov haujlwm ua haujlwm, cov tshuab luam ntawv tuaj yeem ua tiav 5b zoo sib xws, xauv cov khoom siv tshiab hauv kev ntim, tsheb, thiab kev luam ntawv.
6.How los txiav txim siab UV Ink Adhesion Promoter rau ib qho meej meej?
In-depth analysis of substrate characteristics is the key. The surface energy of the substrate is measured by a dyne pen. If the surface energy is lower than 38 dynes/cm (such as polyolefin materials such as PE and PP), a strong polar primer should be selected, such as chlorinated polypropylene (CPP) to improve surface activity; for substrates with higher surface energy (>42 DYNES \/ CM) xws li iav thiab hlau, ua kom cov neeg sawv cev lossis polyurethane Primers yog ntau dua. Nyob rau tib lub sijhawm, cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov substrate yuav tsum tau txiav txim siab. Engineering plastics (ABS, PC) haum rau Polyurethane Primed los ntawm hydrogen quab yuam, thaum hlau cov ntaub ntawv siv rau zinc phosphate lossis epoxy resin los tsim chelates. Ib qho ntxiv, lub cev qauv qauv kuj cuam tshuam rau cov kev xaiv ntawm primers. Cov ntaub ntawv ntxeem tau yuav tsum tau sau cov cim npe nkag mus rau qhov hws, thiab cov chaw ua kom du yuav tsum muaj cov ntawv tso cai ua yeeb yaj kiab kom nce rawv.
Xyuas kom meej tias tus primer yog sib xws nrog tus mem dej num. Ntau hom UV inks muaj cov kev txwv tshwj xeeb rau cov khoom sib txuas ua ntej los koom nrog cov insks tsis muaj kev cuam tshuam nrog kho kom zoo nkauj nrog kev kho kom zoo. Los ntawm kev sib xyaw ua ke, lub xeev ntawm tus thawj coj thiab number case tom qab sib tov tau pom kom tiv thaiv stratification, nag lossis daus lossis ua ntej pib ua ntej; Lub sib txawv scanning calorimeter (DSC) yog siv los xyuas kom meej tias lub ncov qhov kub thiab lub sijhawm ntawm cov primer thiab number case kom zam dhau qhov teeb meem ntawm asynchronous caping.
Finally, the simulation of the actual application environment test is the core of the verification effect. The adhesion strength is evaluated through the cross-cut test and tensile test, which requires to reach level 5B and the interface bonding strength>3MPA; Tshuaj lom neeg kuaj (xws li kev kuaj cov zaub mov tsis raug cai) thiab kev sim ua kom muaj zog (UV Laus Kev Ntsuam Xyuas (ov Laus
