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He aha ai i te Herenga o ngā Tinta Flexo Arataki ki ngā Pepa PE me OPP
Kaha Iti o te Mata me te Kore-Pūmotomoto: Te Wāwāhi Matua o te Here
Ko ngā papa PE (Polyethylene) me ngā papa OPP (oriented polypropylene) he iti noa te kaha o te mata, e 35 dynes ki te centimita neke atu rānei, ā, ko ngā molekūle kāore i te takotoranga takirua. Ko te nuinga o ngā tinta flexographic e mahi ana trū ngā hononga takirua, arā, kāore i te pai te here ki ēnei momo matērihi pātana karaihe. Mēnā kāore he whakaritenga mata, ka hua noa ngā here tinana mōrearea engari kāore i ngā hononga kimikimepihara kaha i waenganui i te tinta me te papapā. Ka puta ngā raruraru i reira e horo ana ngā hoahoa tuhituhi i te wā o te hanganga, i te wehe rānei i te wā e whakamahia ana. E wehe ana ēnei matērihi i ngā tinta flexo e turuki ana i te wai, nā rātou anō ngā āhuatanga here tangata. I te wā e maroke ana ngā kowhatu tiona, ka tīmata te totohu, ka hua ai te pēhanga ki te pito o te tutaki i waenganui i te kapua tinta me te papapā. Kia pai ai te here, me piki ake te mata ki te 38 dynes/cm e ngā tikanga ahumahi. Engari, ko te nuinga o ngā papa PE kāore i te whakarite e 31 dynes/cm noa i te ripoata mai i te Pukapuka Innovation Huinga (2023), nā reira ka hiahiatia tonu ngā whakaritenga motuhake kia pai ai te kounga tuhituhi.
Mate Mātai me te Wehe Īngoa ki te Tauira Flexo
E wāia ana ngā inka Flexo i te whakamahia ki ngā kiri pēpi e iti ana te hiko, nā te mea ko te pūtata o te mata he nui ake i te taea e te papanga i tōna pito matua. Ko te āhua ka rongo ai te tangata e mahi nei ki ēnei mea: kāore te inka e taraiwa tika ana ki runga i te mata. Engari ka hua mai te āhua e mōhiotia ana e te katoa hei te āhua karaka, kei hea ka tōkina atu te inka ki ngā karutahi iti a instead of creating that smooth even layer we want. Ki ērā tere tere whakapakanga e noho ana i ngā taiao whakaputa, ka tipu mai ngā wāhi iti i waenganui i te inka me te matāpuna ake. Ka tukuna ēnei wāwāhi i te parurenga mai i te rangi ki waho, ā, ārai pea i ngā wāhi takirua e aronga ai ngā raru pakaru ki te wā e heke mai ana. E ai ki ngā rangahau hōhonu a te tāpoi i tautangia e te Flexographic Technical Association i te 2022, ko te 60% pea o ngā raru kounga katoa e kitea ana ki ngā papanga PE me OPP ka hua mai i ēnei raru taraiwa. Kāore ngā rīpaingo inka tikanga i te whai i ngā mōhiti taraiwa, i ngā kaiwhakakapi hoki e iti ana te wāhi hurihuri riki e hiahiatia ana kia herea ki ēnei mata maroke kauae. Mā reira ka tīmata te peeling o ngā hua i mua i te wā e tae mai ai ki ngā māhinikorero pakete ki te mara umanga.
Ua Mātai: Tāwhai Whakaritenga mō te Pakihi Pai a Flexo Ink
Whakaritenga Corona: Tirohia te Taumata Dyne (38–42 dynes/cm) me ng Tepeka Herehere Matū
Ko te tikanga corona discharge he mea tino herekanga mō te wā e hiahia ana mātou kia pakari ai ngā inka flexo ki ērā anuanu PE me ngā piriata OPP. Ko te aha e pa ana ki konei ko te whakawhitinga o te mata o te piriata mā te ionatihana hiko, ka piki ake ai ngā rahi dyne ki te 38-42 dynes per cm. Ko te wāhi pai rawa tēnei hei āhua pai i ngā inka. Engari he take kei reira. Ka pakaru ngā mata kua whakarerekenga i te wā e pā ana ngā huringa o ngā karuwarewa polimeri me ngā taonga e neke haerere ana i waho mai i te mata. Ka mau pea ngā āhua pai rawa o te pakari mō te 1 ki te 8 wiki i muri i te whakarereketanga. Mead mā? Hei whakatairanga hoki i te wero me te huamata te tere ake o te prosesa pakaru. Mō ngā kaiwhakahaere pūmahara, ko te arataki i te wā i whakarerekia ai konā i te wā e hiahiatia ai te tuhinga he mea tino matua. Kērea, ka taea e rātou te pā ki ngā raru pakari utu nui i waenganui i ngā rerenga whakaputa tere.
Ngā Tiriti Puhiko me te Ahi hei Whakaurunga Rangatira mō ngā Tononga Korero Heru
Ki te kore e pai ana te corona treatment, ko ngā mātai aitua me te ahi hei whakauru hei kōwhiringa pai ake mō ngā mahi tuhinga flexo uaua. Ko te mātai aitua e mahi ana ma te patuki i ngā matapae ki te aitua hiko, e waihangatia ana i ngā panonitanga mata iti rawa atu me te tino ū āhua, e pupuri ai i ngā rāwekenga dyne ki runga ake i te 50 dynes per centimeter, ā, āno he āhua uaua, he āhua pīroiroi rānei ngā āhua. Ko te mātai ahi e wehe ana i tētahi ara motuhake, e whakamahi ana i te ahi kia mōhio kia horoia ētahi papanga o te matapae, nā reira he mea tino pai mō te mahi tahi ki ngā kōpae paraiharaiha taraweti me ērā anō hoki ngā wāhanga toru-āhuatanga herekore. Ko te mea e wehe nei i ēnei e rua mai i te corona treatment noa, ko te roa o te wā e mau ai mua i te hiahia ki te whakahou anō, tāpiritia atu ko te pūmahara ki ngā tikanga pērā i ngā panoni huamata me te pānga ki ngā matū a roto i te wā. E mōhiotia ana e ngā kamupene pakete i ēnei kaupapa mō ngā hua e hiahiatia ana kia pupuri tika i ngā toa hokohoko me ngā wharepukapuka, ā, ka whakamahi ngā kaihanga i ēnei mātai i ia wā e hiahiatia ana kia pupuri ngā tapanga i ngā tikanga pāpaku tino uaua i te wā o te tuku haere me te whakaputunga.
Ngā Rāpoi Tā Inuata Rangahau mō te Whai ki PE/OPP
Ngā Pūnaha Harore: Polypropylene Kaitoi (CPP), Ngā Acrylic Hurihanga, me ngā PU-Acrylic Huinga
Kua whanaketia ētahi rino motuhake kia pakari ki ērā mata maroke pakuarero e mōhiotia ana, arā e kore ngā paraihe noa i te tino mahi. Hei tauira, te poliparopaireni kiriati (CPP). Ina hoahoa, ka tapaia te anuanu o te kirihou e te kirihou, e waihangatia ana hoki ngā hononga kimikime taraweti i te rauropi molekihūla i waenganui i te CPP me ngā hua pērā i PE, OPP rānei. He mea ataahua rawa tēnā. Engari ko ngā panoni ākiriti kua whanakitia he mea atu anō, e taea ai rātou te tautohe i ngā wera e pānuitia ake nei i te 130 nekenga Celsius, nā reira ka hiahia tonu ina hangaia ngā pouaka e māia ana ki ngā tikanga whakamarumaru. Me kaua hoki mātou e wareware i ngā karapoti PU-ākiriti. Kua kumea mai ēnei takotoranga mātau ngā āhua katoa o te whaihua me te māia ki ngā kimikime nā runga i ērā hononga urethane. Kei te aroha ngā kaihanga kai ki ēnei mō te whakapakanga hua tōpuni, nā te mea ka mau tonu i ngā wāhi tōpuni-tōpuni maha kia kaua e wehe, e pārepare rānei, e ngaro rānei te kounga.
Ngā Kaipāwhara Whakauru me ngā Kaihāpai Iti-Tg: Tautoko i te Maruaroa Mārire
Ko ngā rāwekenga tinta hou ka whakauru i ngā kaiāwhina here e pā ana ki ngā mata o ngā kiriata ki te taumata molekīhia, ā, ka hanga i ngā hononga matū kaha i waenganui i ngā takotoranga tinta me ēnei mātai uaua kāore he kutikuti. Kei te maroke tonu ēnei kaiwhakamaroke iti-Tg motuhake ahakoa he aha te makariri, tae atu ki te 40 niho raro ake i te freezing point, ka arrengia ai ngā pakaru e huri haere ana ake i te wā e neke haere ana ngā hua. Ka taea te penapena i te take tinta e 90% pea ina mahi tahi ēnei wāhanga tahi, mōhio ki ngā tinta flexographic noa. Anō hoki, kei te pātaru pātaru, pāpā pāpā ngā whakaahua i te wā e taraiwa ana i ngā whakamātautau taraiwa i te rautau, e ai ki ngā rangahau i tāngia e te Flexographic Technical Association i te 2022. Ko tēnei momo mahi e nui ake ana te take ki ngā whakamahinga pouaka e hiahiatia ana te roa.
FAQ
He aha e uaua ai mō ngā tinta flexo noa ngā kiri PE me OPP?
Kei te pātata te nui o te kaha mata o ngā pirihi PE me OPP, ā, he kore-takotoranga ngā molekūle, e waihoki ana ki te herekenga o ngā tinta māmā e hāngai ana ki ngā whakawhitinga takotoranga.
He aha te wehenga o te kaha mata i ngā raru tuhinga māmā?
Ka māmā ngā raru tuhinga, pērā i te putanga 'orange peel', ina hekeke ake te kaha mata o ngā tinta māmā i te kaha o te papamuri, ka aukati i te kawenga pai o te tinta, ā, ka aronga ki te wehe haere.
Me pēhea e whakapai ai ngā wehenga mata i te herekenga o te tinta māmā?
Ka whakapai ake ngā wehenga mata pērā i te corona, plasma, me ngā wehenga ahi i ngā rahi dyne, e whakapai ake ana i te herekenga, ā, ka māwhera i ngā raru pērā i te kōpae waimanu me ngā wāhi pēhi.
He aha ngā whānuitanga kei roto i ngā rāwekenga tinta māmā?
Ko ngā rāwekenga tinta māmā ināianei kei roto he rāwekenga motuhake, kaiāwhina herekenga, me ngā kaitiepa T-koretia kia whakapai ake ai te herekenga me te maroke, ina koa ki runga i ngā papamuri iti kaha e uaua ana.