Imboni ye-inki ye-UV ibhekene noshintsho olukhulu oluqhutshwa ukukhuphuka kwamazinga emvelo kanye nempilo. Ithrendi eyodwa enkulu ebusa imakethe ukuthuthukiswa kokwakhiwa kwe-"NVP-Free" kanye "ne-NVC-Free". Kodwa kungani ngempela abakhiqizi beyinki besuka ku-NVP naku-NVC?
Ukuqonda i-NVP ne-NVC
**I-NVP (N-vinyl-2-pyrrolidone)** iyi-diluent esebenzayo equkethe i-nitrogen enefomula ye-molecular C₆H₉NO, efaka iringi ye-pyrrolidone equkethe i-nitrogen. Ngenxa ye-viscosity yayo ephansi (ngokuvamile inciphisa i-viscosity kayinki ibe ngu-8–15 mPa·s) kanye nokusebenza kabusha okuphezulu, i-NVP isetshenziswe kakhulu kuma-UV namayinki. Nokho, ngokuya nge-BASF's Safety Data Sheets (SDS), i-NVP ihlukaniswa njenge-Carc. 2 (H351: okusolwa ukuthi i-carcinogen), i-STOT RE 2 (H373: ukulimala kwesitho), kanye ne-Acute Tox. 4 (ubuthi obunamandla). I-American Conference of Governmental Industrial Hygienists (ACGIH) ikukhawulele ngokuqinile ukuchayeka emsebenzini kunani lomkhawulo (TLV) elingu-0.05 ppm nje.
Ngokufanayo, **NVC (N-vinyl caprolactam)** isetshenziswe kakhulu kumayinki e-UV. Cishe ngo-2024, imithetho ye-CLP ye-European Union yabela i-NVC izigaba zezingozi ezintsha i-H317 (ukuzwela isikhumba) kanye ne-H372 (ukulimala kwesitho). Ukwakhiwa kukayinki okuqukethe u-10 wt% noma ngaphezulu kwe-NVC kufanele kubonise ngokugqamile uphawu lwengozi yogebhezi lwekhanda namathambo, okwenza kube nzima kakhulu ukukhiqiza, ezokuthutha, nokufinyelela emakethe. Imikhiqizo evelele njenge-NUtec ne-swissQprint manje ikhangisa ngokusobala “oyinki be-UV yamahhala be-NVC” kumawebhusayithi wabo nezinto zokuphromotha ukuze bagcizelele iziqinisekiso zabo ezivumelana nemvelo.
Kungani “I-NVC-Imahhala” Iba Indawo Yokuthengisa?
Emabhrendi, ukwamukela i-"NVC-free" ihumusha ezinzuzweni ezimbalwa ezicacile:
* Kwehlisiwe ukuhlukaniswa kwezingozi ze-SDS
* Imikhawulo yezokuthutha ephansi (ayisahlukaniswa njengobuthi 6.1)
* Ukuthobelana kalula nezitifiketi zokukhishwa okuncane, okuzuzisa kakhulu emikhakheni ebucayi efana nezindawo zezokwelapha nezemfundo.
Ngamafuphi, ukususa i-NVC kunikeza iphuzu elicacile lokwehlukanisa ekukhangiseni, izitifiketi eziluhlaza, namaphrojekthi wamathenda.
Ubukhona Bomlando be-NVP ne-NVC kuma-Inks we-UV
Kusukela ngasekupheleni kwawo-1990 kuya ekuqaleni kwawo-2010, i-NVP ne-NVC kwakuyizihlambululi ezisebenzayo ezivamile kumasistimu kayinki we-UV ovamile ngenxa yokunciphisa i-viscosity esebenzayo kanye nokusebenza kabusha okuphezulu. Ukwakheka okujwayelekile koyinki omnyama ngokomlando kwakuqukethe i-15–25 wt% NVP/NVC, kuyilapho amajazi acacile e-flexographic ayenayo cishe i-5-10 wt%.
Kodwa-ke, njengoba i-European Printing Ink Association (EuPIA) yavimbela ukusetshenziswa kwe-carcinogenic kanye ne-mutagenic monomers, ukwakheka kwendabuko kwe-NVP/NVC kushintshaniswa ngokushesha ezinye izindlela eziphephile njenge-VMOX, IBOA, ne-DPGDA. Kubalulekile ukuqaphela ukuthi oyinki abancibilikisiwe noma abasuselwe emanzini abakaze bafake i-NVP/NVC; lama-lactam e-vinyl aqukethe i-nitrogen atholakala kuphela ezinhlelweni zokuphulukisa ze-UV/EB.
Izixazululo ze-Haohui UV zabakhi be-Ink
Njengomholi embonini yokwelapha ye-UV, i-Haohui New Materials izinikele ekuthuthukiseni ama-ink e-UV aphephile, alungele imvelo namasistimu e-resin. Sibasekela ngokukhethekile abakhiqizi beyinki abashintshayo besuka koyinki bendabuko baye ezixazululweni ze-UV ngokubhekana nezindawo zobuhlungu ezivamile ngosekelo lobuchwepheshe olwenziwe ngokwezifiso. Amasevisi ethu ahlanganisa isiqondiso sokukhethwa komkhiqizo, ukuthuthukiswa kokubunjwa, ukulungiswa kwenqubo, nokuqeqeshwa kochwepheshe, okuvumela amakhasimende ethu ukuthi aphumelele phakathi kokuqinisa imithetho yemvelo.
Ukuze uthole imininingwane eyengeziwe yobuchwepheshe namasampula omkhiqizo, vakashela iwebhusayithi esemthethweni ye-Haohui, noma uxhumane nathi ku-LinkedIn naku-WeChat.
Isikhathi sokuthumela: Jul-01-2025
