Kei te pāngia te umanga waituhi UV e tētahi panonitanga nui e te pikinga ake o ngā paerewa taiao me te hauora. Ko tētahi ia o ngā āhuatanga nui e kaha ana ki te mākete ko te whakatairanga i ngā momo waituhi "Kore-NVP" me te "Kore-NVC". Engari he aha rawa te take e neke atu ai ngā kaihanga waituhi i te NVP me te NVC?
Te Mārama ki te NVP me te NVC
Ko te **NVP (N-vinyl-2-pyrrolidone)** he wairewa tauhohe kei roto he hauota, ko tōna tauira ngota C₆H₉NO, kei roto he mowhiti pyrrolidone kei roto he hauota. Nā te iti o te matotoru (he maha ngā wā ka whakaiti i te matotoru o te waituhi ki te 8–15 mPa·s) me te kaha tauhohe, kua whakamahia whānuitia te NVP i roto i ngā paninga UV me ngā waituhi. Heoi, e ai ki ngā Pepa Raraunga Haumaru (SDS) a BASF, kua whakarōpūtia te NVP hei Carc. 2 (H351: whakapae he carcinogen), STOT RE 2 (H373: kino o te okana), me te Acute Tox. 4 (paitini nui). Kua tino whakawhāitihia e te Huihuinga Amerikana o ngā Kaihautū Hauora Ahumahi Kāwanatanga (ACGIH) te pānga mahi ki te uara paepae (TLV) o te 0.05 ppm anake.
Waihoki, kua whānuitia te whakamahinga o te **NVC (N-vinyl caprolactam)** i roto i ngā waituhi UV. I te tau 2024 pea, i whakaritea e ngā ture CLP a te Kotahitanga o Ūropi ngā whakarōpūtanga tūpono hou H317 (te whakaōrite kiri) me te H372 (te kino o te okana) ki te NVC. Ko ngā hanganga waituhi kei roto he 10 wt% neke atu rānei o te NVC me whakaatu mārama he tohu tūpono angaanga-me-ngā-iwi whakawhiti, ka tino uaua ai te hanga, te kawe, me te urunga ki te mākete. Ko ngā waitohu rongonui pēnei i a NUtec me swissQprint inaianei kua pānuitia māramatia "ngā waituhi UV kore-NVC" i runga i ā rātou paetukutuku me ngā rauemi whakatairanga hei whakanui i ō rātou tohu hoa-taiao.
He aha te take e riro ai te "NVC-Free" hei huarahi hokohoko?
Mō ngā waitohu, ko te tango i te "kore-NVC" he maha ngā painga mārama:
* Te whakaiti i te whakarōpūtanga mōrearea SDS
* Ngā here kawe iti iho (kāore i te whakarōpūtia hei paitini 6.1)
* He māmā ake te whakatutuki i ngā tiwhikete iti-tukunga, he mea tino whai hua i ngā rāngai tairongo pēnei i ngā taiao hauora me te mātauranga.
I te poto, mā te whakakore i te NVC ka kitea he rerekētanga mārama i roto i te hokohoko, te tiwhikete matomato, me ngā kaupapa tuku tono.
Te Aroaro o te NVP me te NVC i roto i ngā Waituhi UV i roto i ngā Wāhanga Hītori
Mai i te mutunga o te tekau tau atu i 1990 ki te tīmatanga o te tekau tau atu i 2010, ko te NVP me te NVC ngā mea whakaranu tauhohe noa i roto i ngā pūnaha waituhi UV tuku iho nā te mea he whai hua te whakaiti i te matotoru me te kaha tauhohe. Ko ngā whakatakotoranga noa mō ngā waituhi inkjet pango i mua he 15–25 wt% NVP/NVC, ko ngā paninga mārama flexographic he tata ki te 5–10 wt%.
Heoi, mai i te wā i aukatia ai e te European Printing Ink Association (EuPIA) te whakamahinga o ngā monomer carcinogenic me ngā mutagenic, kei te tere te whakakapia o ngā whakatakotoranga NVP/NVC tuku iho e ngā momo rongoā haumaru ake pērā i te VMOX, IBOA, me te DPGDA. He mea nui kia mōhio kāore i whakauruhia he NVP/NVC ki roto i ngā waituhi e hangai ana ki te whakarewa, ki te wai rānei; i kitea anake ēnei vinyl lactams kei roto te hauota i roto i ngā pūnaha whakamaroke UV/EB.
Ngā Otinga UV o Haohui mō ngā Kaihanga Waituhi
Hei kaiārahi i roto i te umanga whakamaroke UV, e whakapau kaha ana a Haohui New Materials ki te whakawhanake i ngā pūnaha waituhi UV me te kapia haumaru ake, e pai ana ki te taiao. E tautoko ana mātou i ngā kaihanga waituhi e neke ana mai i ngā waituhi tuku iho ki ngā otinga UV mā te aro atu ki ngā raruraru noa mā te tautoko hangarau ritenga. Kei roto i ā mātou ratonga te aratohu whiriwhiri hua, te arotautanga whakatakotoranga, ngā whakatikatika tukanga, me te whakangungu ngaio, e āhei ai ā mātou kiritaki ki te angitu i waenga i te whakakaha o ngā ture taiao.
Mō ētahi atu kōrero hangarau me ngā tauira hua, tirohia te paetukutuku mana o Haohui, whakapā mai rānei ki a mātou i runga i te LinkedIn me te WeChat.
Te wā tuku: Hōngongoi-01-2025
