He aha ngā inki UV e whakamāhi ana mō te whakamā printing i ngā rākau kai?

He Aha ngā Inki Tā UV Tātai e Hinga Ana i ngā Kākahu Whakamātautau

Te whāinga o te porowhenua: Me pēhea te whakamātautau o te whakamātautau o te wāhi mātua e whakamātautau ana i te whakamātautau o te whakamātautau

Ko te ara i whakamahinga ai ngā rākau kōpae i ō rātou hurihuri cellulose mātā, he mea tāwhai i a rātou i tēnei āhua o te porowhiti, ā, ko tēnei he take kia whakamātautau ai i ngā mea i te wāhanga o te whakamātautau. Ko ngā inki UV tātai mātua e tāwhai ana i ngā rākau kōpae nei i mua i te wā e whakamātautau ai i a ia hei tātai mātua. He aha te whakamātautau? Kāore ngā photoinitiators i te mata o te rākau kōpae e wāhi ana, nō reira kāore ngā inki e whakamātautau ana i te whakamātautau i te tātai mātua i te āhua e tika ana. I ngā whakamātautau i te whare pūtaiao, kua kitea ko ngā rākau kōpae kraft kāore i te whakamātautau e taea ana te whakamātautau i ngā wāhanga o te wā i te haurua herenga, i te toru waipuke ake i ngā rākau kōpae tātai mātua. Ko tēnei he take kia kāore ngā inki UV e whakamātautau ana i te tātai mātua, ā, e tāwhai ana i te mata o te rākau kōpae. I te ao whakamātau, ko tēnei he take kia wehe ai ngā āhua tātai i ngā rākau kōpae i te wā e neke mai ana ngā rākau kōpae, ā, kāore ngā tae e tāwhai ana i te wāhanga o te whakamātautau i te wāhanga o te whakamātautau. Mō ngā kamupani e hokona ana i ngā kōpae tātai, ko tēnei he mea nui, nā te mea ka whakamātautau ai ngā tāngata i te kounga i te āhua o ngā whakaahua e tāwhai ana i te wā.

Te whakamātautau o te whakamātautau: ngā pākoki me ngā wehe i te whakamātautau o te whakamātautau i te wā o te whakamātautau, i te wā o te whakamātautau, i te wā o te whakamātautau

Ko ngā inki whakamātautau UV tūturu he whakamātautau kaha, he kiko pākaha, ā, he rerekē ngā āhuatanga o te whakamātautau i ngā hāngā o ngā rākau kōpae e hāngā ana. I raro i te whakamāhi i te tauwhenua i te whakamāhinga, i te whakamāhinga, i te whakamāhinga, i te whakamāhinga:

• Ko ngā whakamātautau acrylate e rere ana i ngā wāhi whakamāhi i raro i te 8% o te whakamāhi
• Ko te rerekē o ngā whakamāhi e whakamāhi ana i te whakamāhi i te whakamāhi i waenganui i ngā kōpae me ngā inki
• Ko te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi i te whakamāhi......

Ko ngā rere kōpae e kitea ana i muri i ngā hāngā 5–10—e whakamāhi ana i te āhua o te toa me te oranga, īnā ko ngā rākau kōpae e whakamāhi ana i ngā wāhi ārai, ā, he rerekē ngā āhuatanga o te rākau kōpae i ngā wāhi ārai.

Ngā āhuatanga matua o te rākau kōpae e whakamāhi ana i te whakamātautau UV

Te taumata, te mahi o ngā kōpae, me te tāwhai o te rākau kōpae—ko ngā tohutohu e whakamāhi ana i te whakamātautau me ngā āhuatanga o te whakamātautau

E toru ngā āhuatanga o te rākau kōpae e whakamāhi ana i te whakamātautau UV i ngā rākau kōpae:

• Te taumata (g/m²) e whakamārama i te wāhi o te whakamātau: ngā wāhi i raro i te 25 g/m² ka pāpā ake te whāia o te ink kia whakamātau, i te wāhi i tēnei, ko ngā wāhi ≥30 g/m² he tautua mō te whakamātau o te ink i te wāhi e tika ana.
• Te matatau o ngā kōwhai e whakamārama i te āhua o te mata o te whāriki—ko ngā whāriki mātātū e whakamārama i ngā wāhi o te whakamātau e rerekē ana, ā, he whāia o te whakamātau; ko ngā whāriki kaha ake he whāia o te whakamātau kia rite tonu, ā, he kaha ake te tūāpapa o te whāriki.
• Te Rawa o te Rahi , e whakamārama mai ana i ngā whakamātau o roto o te whāriki, e whakamārama ana i te hāere o te ink. Ko te iti o ngā whakamātau he whāia o te hāere o te ink i te 1.5× (Ponemon 2023), ā, he whāia o te whakamātau o ngā photoinitiators e hiahiatia ana mō te whakamātau kaha.

Ko ēnei āhuatanga katoa e whakamārama ana i te 63% o ngā hapa o te whakamātau i ngā kōwhai whakamātau—ā, he pai ake te whakamātau i tēnei i tahi, kāore i tēnei i tēnā.

Me whakamātautau ngā tohunga tāwhai i ngā whāriki e whai ana i ngā wāhanga taumata >30 g/m², te whakamātautau tata o ngā kōrero, me ngā whāinga o ngā whāinga kua whakamātautau—ko ēnei ngā take mātua mō te whakamātautau pūmau me te tāwhai i te wā roa.

Ngā whāinga tāwhai UV kua whakamātautau mō ngā whāriki cellulose kua whakamātautau

Tāwhai UV cationic: Te whakamātautau pai ake i ngā kākahu kraft kāore i te whakamātautau (kua whakamātautau i ISO 9211-3)

Ko ngā tinta UV tāwhai i te katiōnā e whakamāna ana i ngā raru maha e pā ana ki ngā pūnaha hāngā kore-kiri, ina he wāhi porowhita ngā kōpae, i te mea he āhua o te āhua o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamātau i te pūtake o te whakamā......

Tinta whakamātautau UV acrylate-epoxy hibarī: Whakawhitinga i te mātātoko, te hāere o te whakamātautau, me te whakamātau ki ngā whakaheke

Inā mātua kōrero mātou i ngā inki UV mō te whakamātautau i ngā ākari hibarī i te acrylate me te epoxy, ko ngā ākari e tātai ana he whakauru i ngā pūnaha o te whakamātautau tawhito o ngā acrylate me ngā pūnaha hāngā o ngā epoxy. Ko tēnei whakauru he whakamātautau i ngā ākari e tātai ana i ngā āhuatanga o te tere me te tāwhai. Ko te wāhanga o te epoxy he mea nui hoki—ka whakamātua i ngā raru o te whakamātautau i ngā wāhanga iti o te ākari i te whakamātautau, ā, ākine anō he whakamātautau i te ākari i te whakamātautau i te 200% i mua i te pakaru. Arā, kāore he pākū i te whakamātautau i ngā whakamātautau i te whakamātautau i te whakamātautau i te whakamātautau. Ko ngā inki nei e whakamātautau tonu ana i te 0.3 sekone i te whakamātautau i te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te āhua o te......

Tāruatanga o te Whakamātautau Āhua Whānui mō ngā Inki UV mō ngā Tāwhai Papaperi

Ko te whiriwhiri i te inkī UV tika mō ngā tāwhai papaperi kāore he whakamātautau noa—he whakaaro pūmau hoki ngā rongoā me ō rātou mahinga. Timata mai i ngā whakamātautau matua i mua. Whakamātauhia te hāere ake o te wai i te rākau tāwhai i runga i ngā whakamātautau ISO 535, ā, whakamātauhia hoki kia mātua te pāpā o te papaperi—ko te 40 gram i te mita tapawhā te iti i te tāpiri hei whakamāramatanga kia kore ai ngā inki e rere mai i te wāhi kē. I ngā tāwhai kraft tāwhai kāore i te whakamāhinga, whakamātauhia ngā inki cationic, nā rātou nei e tū maumahara ake i te nuinga o ngā inki, me te whāinga i te 4 newton i te sentimita hei tohu o te tāwhai i runga i ngā whakamātautau ISO 2409. Ki ngā tāwhai e hiahiatia ana kia mahi i ngā kōpae tāwhai iti i reira he maha ngā tāwhai, tātai ngā inki pūtea motuhake e whai ana i ngā uara o ngā acrylate me ngā epoxy. Me whakamātautau kia taea ai ngā inki nei te whānui kia taea ai te whakamārama i ngā whānuitanga, ā, ko te 15% te iti i te whānuitanga i mua i te pakaru, e whakamātautau ana i runga i ngā whakamātautau ASTM D638.

• Te whakamārama o te whakamātautau whakamātua te whakamātautau i te hāngā o te rama (rama mercury-arc, anō rānei he rama LED) hei tātai i te rōpū whakamātautau o te inki (i te wāhi i te 320–390 nm), me te hiranga o te hiko i tukuna ≥300 mJ/cm² hei whakamārama i te whakamātautau o te whakamātautau o te whakamātautau.
• Te whakamātautau o ngā mahi whakamātua ngā whakamātautau ISO 2836:2021 mo te pākaha o te whakamātautau, me ngā whakamātautau TAPPI T456 mo te pākaha o te wai, i raro i ngā āhuatanga e whakamāhi ana i ngā kaha o te whakamātautau i te ao pūnaha—kāore i ngā whakamātautau tuwhera o te whare whakamātautau anake.
• Te whakamātautau o ngā ture mō ngā whakamāhi i te kai, whakamātua te whakamātautau ki te FDA 21 CFR §175.300, anō rānei ki te Rārangi Ture o te EU 10/2011—e rere ana ēnei i ngā kaiwhakamahi inki rangatira hei whakamārama i te haumaru o te whakamāhi kai.

Ko ngā kaiwhakāpānui o te ao tāpiri e tuku ana i ngā whakamātautau mātua mō ngā wāhi rerekē, tae atu hoki ki ngā rāngi uku mai i te 500 ki te 1,500 cP i te hāngā o te rūma, ngā rāngi tohua o ngā pūrere anilox mai i te 4.0 ki te 7.0 BCM, me ngā kōrero mō te āhua o te whakamātau o ngā kōpae i ngā roa tatau rerekē. He mea tino pūmau te whakamātau i te ao pūhanga anō. Me whakamātau ngā tauira tāpihi i ngā whakamātau āhua pūhanga anō i ngā taupāpā kaha, i te 70°C me te 65% o te hukapapa, i te toru ra tonu. Ko tēnei hei āki kia kitea ai mēnā he pūmau ngā tae i te wā, te pūmau o ngā hononga, me te pūmau i ngā whakamātau āhua pūhanga anō i ngā wāhi katoa i tātou whakamātau i ngā wā o te mahi tūmatanui. I tēnei ara tāwhai ake, he iti ake ngā raruraru pērā i te whakawhitinga, te pakaru, me te whakamātao o ngā tāpihi. Ko tēnei hei whakamārama kia pai ngā āhua, me te tika o ngā mahi, ahakoa ngā paparanga pāpā kaha rawa atu i ngā pepa e whakamātautau ana i te inki nui.

Ngā Pātai Tāpiri

He aha te take i tāwhai ai te inki tā UV tāwhai i ngā kōpae?

Kāore ngā tinta whakamātautau UV mātua e anga ana, nā te whakamātautau kaha o ngā rākau kōpū i te whakamātautau i ngā tinta ki roto i te kōpū i mua i tana whakamātautau pūmau ki te whāriki.

He aha te mea i wāia ai ngā tinta whakamātautau UV cationic mō ngā rākau kōpū?

Ko ngā tinta whakamātautau UV cationic he huarahi whakamātautau i te pō i whakamātautau ai i ngā whakarewa kimikahī ā, ā, he whakamātautau hoki i ngā hononga i muri i te whakamātautau, ā, he pai rawa ānei mō ngā kōpū porowhita pērā i ngā rākau kōpū.

Me pēhea ngā tinta acrylate-epoxy pūhoro i te whakamātautau UV i ngā kōpū whakamātautau?

Ko ngā tinta acrylate-epoxy pūhoro he whakamātautau tawhito o ngā acrylate me te whakamātautau o ngā epoxy, ā, he whakamātautau hoki i te whakamātautau kaha o ngā rākau kōpū, ā, he whakamātautau hoki i te whakamātautau o te kōpū i te whakamātautau kore.