Imboni ye-inki ye-UV ibhekene noshintsho olukhulu oluqhutshwa amazinga emvelo nezempilo akhuphukayo. Umkhuba omkhulu olawula imakethe ukukhuthazwa kwezindlela "ze-NVP-Free" kanye "ne-NVC-Free". Kodwa kungani ngempela abakhiqizi be-inki besuka ku-NVP kanye ne-NVC?
Ukuqonda i-NVP ne-NVC
**I-NVP (i-N-vinyl-2-pyrrolidone)** iyisihlanzi esiphendulayo esiqukethe i-nitrogen esinefomula yama-molecule i-C₆H₉NO, equkethe indandatho ye-pyrrolidone equkethe i-nitrogen. Ngenxa ye-viscosity yayo ephansi (ngokuvamile inciphisa i-inki viscosity ibe ngu-8–15 mPa·s) kanye ne-reactivity ephezulu, i-NVP isetshenziswe kakhulu ekumbozweni kwe-UV kanye noyinki. Kodwa-ke, ngokusho kwe-BASF's Safety Data Sheets (SDS), i-NVP ihlukaniswa njenge-Carc. 2 (H351: okusolwa ukuthi ibangela umdlavuza), i-STOT RE 2 (H373: umonakalo wezitho), kanye ne-Acute Tox. 4 (ubuthi obukhulu). I-American Conference of Governmental Industrial Hygienists (ACGIH) inomkhawulo oqinile wokuvezwa emsebenzini enanini lomkhawulo womkhawulo (TLV) ongu-0.05 ppm kuphela.
Ngokufanayo, i-**NVC (i-N-vinyl caprolactam)** isetshenziswe kabanzi kuma-inki e-UV. Cishe ngo-2024, imithethonqubo ye-CLP ye-European Union yanikeza i-NVC izigaba ezintsha zezingozi i-H317 (ukuzwela kwesikhumba) kanye ne-H372 (umonakalo wezitho zomzimba). Ukwakheka kwe-inki okuqukethe i-NVC engu-10 wt% noma ngaphezulu kumele kubonise ngokusobala uphawu lwengozi ye-skull-and-crossbones, okwenza kube nzima kakhulu ukukhiqiza, ukuthutha, kanye nokufinyelela emakethe. Imikhiqizo evelele njenge-NUtec kanye ne-swissQprint manje ikhangisa ngokusobala "ama-inki e-UV angenayo i-NVC" kumawebhusayithi abo kanye nezinto zokuphromotha ukuze kugcizelelwe iziqinisekiso zabo ezinobungani nemvelo.
Kungani "i-NVC-Free" iba yindawo yokuthengisa?
Kumabhrendi, ukusebenzisa "okungena-NVC" kusho izinzuzo eziningana ezicacile:
* Ukuhlukaniswa kwezingozi ze-SDS okuncishisiwe
* Imikhawulo ephansi yezokuthutha (ayisabhekwa njengeyingozi 6.1)
* Kulula ukuthobela izitifiketi zokukhishwa komoya okuphansi, ikakhulukazi ezizuzisayo emikhakheni ebucayi njengezimo zezokwelapha nezemfundo.
Ngamafuphi, ukususa i-NVC kunikeza iphuzu elicacile lokuhlukanisa ekukhangiseni, ekuqinisekisweni okuluhlaza, kanye namaphrojekthi amathenda.
Ukuba khona Kwasemlandweni Kwe-NVP Ne-NVC Kuma-UV Inks
Kusukela ngasekupheleni kweminyaka yama-1990 kuya ekuqaleni kwawo-2010, i-NVP kanye ne-NVC kwakuyizinto ezivamile zokunciphisa ukusabela ezinhlelweni ze-inki ye-UV yendabuko ngenxa yokunciphisa kwazo i-viscosity okuphumelelayo kanye nokusebenza okuphezulu. Amafomula ajwayelekile ama-inki e-inkjet amnyama ngokomlando ayequkethe i-15-25 wt% NVP/NVC, kuyilapho ama-flexographic clear coats ayene-5-10 wt%.
Kodwa-ke, njengoba i-European Printing Ink Association (EuPIA) ivimbele ukusetshenziswa kwama-monomer abangela umdlavuza kanye nokuguqulwa kwezakhi zofuzo, amafomula endabuko e-NVP/NVC ashintshwa ngokushesha ngezinye izindlela eziphephile njenge-VMOX, i-IBOA, kanye ne-DPGDA. Kubalulekile ukuqaphela ukuthi ama-inki asekelwe ku-solvent noma asekelwe emanzini awazange afake i-NVP/NVC; lawa ma-vinyl lactam aqukethe i-nitrogen atholakale kuphela ezinhlelweni zokwelapha ze-UV/EB.
Izixazululo ze-UV ze-Haohui zabakhiqizi be-Ink
Njengomholi embonini yokwelapha i-UV, i-Haohui New Materials izinikele ekuthuthukiseni i-inki ye-UV ephephile, enobungani nemvelo kanye nezinhlelo ze-resin. Sisekela ngokukhethekile abakhiqizi be-inki abashintsha kusuka ku-inki yendabuko baye kuzixazululo ze-UV ngokubhekana nezindawo ezibuhlungu ezivamile ngokusekelwa kobuchwepheshe okwenziwe ngokwezifiso. Izinsizakalo zethu zifaka phakathi isiqondiso sokukhetha umkhiqizo, ukwenza ngcono ukwakheka, ukulungiswa kwenqubo, kanye nokuqeqeshwa kobungcweti, okuvumela amakhasimende ethu ukuthi achume phakathi kwemithethonqubo yezemvelo eqinile.
Ukuze uthole imininingwane eyengeziwe yobuchwepheshe kanye namasampula omkhiqizo, vakashela iwebhusayithi esemthethweni ye-Haohui, noma uxhumane nathi ku-LinkedIn kanye ne-WeChat.
Isikhathi sokuthunyelwe: Julayi-01-2025
