Kev lag luam UV number case tab tom hloov pauv loj heev los ntawm kev nce qib ntawm cov qauv ib puag ncig thiab kev noj qab haus huv. Ib qho tseem ceeb uas tswj hwm kev ua lag luam yog kev txhawb nqa cov qauv "NVP-Free" thiab "NVC-Free". Tab sis vim li cas cov tuam txhab tsim number case thiaj li tsiv tawm ntawm NVP thiab NVC?
Nkag siab txog NVP thiab NVC
**NVP (N-vinyl-2-pyrrolidone)** yog ib qho tshuaj uas muaj nitrogen nrog cov mis molecular C₆H₉NO, uas muaj lub nplhaib nitrogen uas muaj pyrrolidone. Vim nws qhov viscosity qis (feem ntau txo cov kua mem viscosity rau 8–15 mPa·s) thiab muaj kev ua haujlwm siab, NVP tau siv dav hauv UV coatings thiab inks. Txawm li cas los xij, raws li BASF's Safety Data Sheets (SDS), NVP tau muab faib ua Carc. 2 (H351: xav tias yog carcinogen), STOT RE 2 (H373: kev puas tsuaj rau lub cev), thiab Acute Tox. 4 (kev lom heev). Lub Rooj Sib Tham Txog Kev Ua Haujlwm ntawm Tsoomfwv Tebchaws Asmeskas (ACGIH) tau txwv tsis pub muaj kev ua haujlwm ntau dhau rau qhov txwv tsis pub tshaj plaws (TLV) ntawm tsuas yog 0.05 ppm.
Ib yam li ntawd, **NVC (N-vinyl caprolactam)** tau siv dav hauv cov kua xim UV. Nyob ib ncig ntawm xyoo 2024, cov cai CLP ntawm European Union tau muab cov kev faib tawm tshiab txog kev phom sij H317 (kev ua rau tawv nqaij khaus) thiab H372 (kev puas tsuaj rau lub cev) rau NVC. Cov kua xim uas muaj 10 wt% lossis ntau dua NVC yuav tsum pom tseeb lub cim phom sij ntawm pob txha taub hau thiab pob txha hla, ua rau muaj kev nyuaj rau kev tsim khoom, kev thauj mus los, thiab kev nkag mus rau hauv kev lag luam. Cov hom lag luam tseem ceeb xws li NUtec thiab swissQprint tam sim no tshaj tawm "NVC-free UV inks" ntawm lawv lub vev xaib thiab cov ntaub ntawv tshaj tawm kom pom tseeb lawv cov ntaub ntawv pov thawj zoo rau ib puag ncig.
Vim li cas "Tsis Muaj NVC" thiaj li los ua ib qho chaw muag khoom?
Rau cov hom lag luam, kev siv "NVC-free" txhais tau tias muaj ntau yam txiaj ntsig zoo:
* Txo qhov kev faib tawm ntawm SDS uas muaj kev phom sij
* Kev txwv kev thauj mus los tsawg dua (tsis raug cais ua tshuaj lom 6.1 lawm)
* Ua raws li cov ntawv pov thawj qis-emission yooj yim dua, tshwj xeeb tshaj yog muaj txiaj ntsig zoo rau cov kev lag luam rhiab heev xws li kev kho mob thiab kev kawm.
Hauv ntej, kev tshem tawm NVC muab qhov sib txawv meej hauv kev lag luam, daim ntawv pov thawj ntsuab, thiab cov haujlwm sib tw.
Keeb kwm ntawm NVP thiab NVC hauv UV Inks
Txij li xyoo 1990s lig mus txog rau xyoo 2010s thaum ntxov, NVP thiab NVC yog cov tshuaj diluents uas siv tau ntau hauv cov tshuab UV number case ib txwm muaj vim lawv txo cov viscosity thiab ua haujlwm tau zoo. Cov qauv ib txwm muaj rau cov inkjet dub keeb kwm muaj 15–25 wt% NVP/NVC, thaum cov tsho tiv no flexographic muaj li ntawm 5–10 wt%.
Txawm li cas los xij, txij li thaum European Printing Ink Association (EuPIA) txwv tsis pub siv cov monomers carcinogenic thiab mutagenic, cov qauv NVP/NVC ib txwm muaj sai sai hloov los ntawm cov kev xaiv muaj kev nyab xeeb dua xws li VMOX, IBOA, thiab DPGDA. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias cov kua roj uas muaj cov kuab tshuaj lossis cov kua dej yeej tsis suav nrog NVP/NVC; cov vinyl lactams uas muaj nitrogen no tsuas pom muaj nyob rau hauv UV/EB curing systems xwb.
Haohui UV Solutions rau Cov Chaw Tsim Khoom Siv Ink
Ua ib tug thawj coj hauv kev lag luam UV curing, Haohui New Materials tau mob siab rau kev tsim cov UV inks thiab resin systems uas muaj kev nyab xeeb dua, zoo rau ib puag ncig. Peb tshwj xeeb txhawb nqa cov chaw tsim cov inks uas hloov pauv ntawm cov inks ib txwm mus rau UV los ntawm kev daws teeb meem los ntawm kev daws cov teeb meem uas tshwm sim los ntawm kev txhawb nqa kev txawj ntse. Peb cov kev pabcuam suav nrog kev taw qhia xaiv cov khoom, kev ua kom zoo dua ntawm cov mis, kev hloov kho cov txheej txheem, thiab kev cob qhia ua haujlwm, ua rau peb cov neeg siv khoom vam meej thaum muaj kev cai lij choj ib puag ncig nruj.
Yog xav paub ntxiv txog kev siv tshuab thiab cov qauv khoom, mus saib Haohui lub vev xaib official, lossis txuas nrog peb ntawm LinkedIn thiab WeChat.
Lub sijhawm tshaj tawm: Lub Xya Hli-01-2025
