Ka taea te uaua intaglio aqueous mō te paraka te herekanga pai ki ngā rāngai paraka?

Te Mārama i te Tinta Tuhinga Intaglio Ā-Whānui me Tana Whakamahinga ki ngā Paraihe

He aha te whakataunga i te Tinta Tuhinga Intaglio Ā-Whānui mō te Paraihe?

Ko te tinta ā-tāpiri papatauranga mā te wai e mahi pai ana mō ngā parahi, nā te mea ka whakakīia e ia ngā rautaki wai noa ngā tikanga taunaha rerehua e hāngai ana ki ngā taipitopito makariri, roa-ora rānei ki ngā mea pūpeneoi maru pērā i te polietilene, Polipropilene rānei. Ko te mea e wehe ana i ēnei tinta mai i ngā tinta tuanui o mua ko te ara i mahi ai. Engari i te noho noa, ka tukuna ēnei tinta tru ngā siliara āhuatanga e totohu ana i te tae ki ngā kōhao iti nei ki te mata o te papamuri taupapa. Ko te hinga o ngā hua pai he nuinga o te tika o te tino āhua o te tinta. Me pātata tonu te mea e kī ana i aua wāhi mikirotahi engari me tuku anō pea ina hiahiatia. Mō te nuinga o ngā kaimātātoko matatau, ko te whakahaere i tēnei taurangi āhua ko te mea e wehe ana i ngā taupātanga pai i ngā taupātanga tino pai rawa atu i te ao mātātoko i ēnei rā.

Te hanga me ngā vanteporo taiao o ngā Tinta mā te Wai

Ko ngā tinta ā-tāpiri auau o nāianei e toru ngā wāhanga matua:

• Wai (60-75%): He kaiako waihanga matua
• Pūpahi Acrylic/polyurethane (15-25%): Whakawhanake kaha herekanga ki ngā paparanga pāpori
• Ngā taputapu māia (5-10%): Whakapai ake i te whakamarie, te horapa, me ngā āhuatanga rere

Ko ēnei tohutoro kaiteka i ngā hua takitahi takitahi (VOCs) umanga 70-90% mōhio atu ki ngā kōwhiringa UV-curable, tōpa or solvent-based (EHS Journal 2023), āwhina ai i te aronga ki ngā tikanga taiao pērā i te EPA’s Toxic Substances Control Act. Ko te uara o wai hoki e whakamāmae ana i te horoi i ngā pihini me te āwhina i ngā mahi whakamahinga anuanei i ngā whakaurunga pakihi tūmatanui.

Te aha te rerekētanga o te Tā Intaglio i ētahi atu tikanga ki ngā paparanga Polymer

Ko te tā Intaglio e wehe ana i te tā flexography me te tā pad tru ngā tikanga tuku tātata motuhake:

Ko te tikanga e whiwhi ana i te pono o te rēhita iti ake i te 0.1 mm mā te pakaru i te tā ki roto i ngā wā kua tohua—ka pai ai mō te takotoranga haumaru me ngā mutunga hiriwa ki ngā taonga pērā i ngā kāri nama. Ko ngā whanaketanga hou i te hangarau rotogravure e whakaatu ana i te 95% te ihirangi o te tā ki ngā kiri PET kua whakatika, e pānui ake ana i te ihirangi noa o te tā parainga e 65-75%.

Te Pūtaiao kei te Tīmatanga o te Tā e Pakari Ana ki ngā Mātā Papa

Te Whana i waenga i te Kaha Mata me te Tension Mata i te Hono Tā

Ko te whiwhi i te herekenga pai me te tinta intaglio ā-whānui e hāngai ana ki te whiwhi i ngā hianga o te mata i te tika, i waenganui i te mea e printia ana me te matēria anō. Ina mahi ana ki ngā pūropi (polymers) e 40 dynes per square centimeter te hianga mata, ka kitea he rereke ake te herekenga nā te iti ake o te tahumaero i te wāhi e takoto ai ngā matēria e rua. Ka pakaru haere te tinta ki runga i te mata, engari kāore i te kohikohi, i te wehe rānei. He nui te take o tēnei āhuatanga nā te pānga ki te āhua e here ana te tinta ki te papamuri, mā ngā tikanga herehere tinana hoki, mā ngā whakaritenga kimihana hoki e hua ana ki te paraka matāwai.

Te Pātatarenga o ngā Reanga ki ngā Rangi Taumira: Te Tūmanako ki te Whaiwāhitanga o te Tinta Ā-whānui

Kia pai ai te here, me patai ngā ina wai ki te kōnehu takotoranga i raro i te 90° kia pai ai te taraiwa. E whakaatu ana ngā rangahau mai i te Rōpū Tekinikia Flexographic mā te iti ake te whakapakari ka hua ngā herenga pērā i ngā karuika, āhuatia rawa ki ngā polyolefin iti te hiko pērā i te polyethylene. Ka whakanui ake ngā mātai mata i te pūmau, ka whakapai ake i te whiwhinga ina huinga-whai-mātauranga umanga 60-80%.

Ngā Taima Matua o Te Energi Mata kia Pai ai te Here Ina

E hiahiatia ana e te nuinga o ngā punaha intaglio wai katoa ngā papanga e pānui ake ana i te 36 dynes/cm² kia tino pakari ai te tuakiri. Nō reira he mea matua herekore te whakarerekētanga i te mata, nā te mea ko te polypropylene me te LDPE kāore i te muka e toro ana ki tēnei taumata.

Ngā Wero Whakauru ki ngā Piriti Dyne Moemoea me Te Ara Tuarangi

Ko ngā paraihe e iti ana te pūtangata o te mata (e rite ki te 34 dynes per square centimeter, i raro rānei) e hāpaitia ana e ngā tioata e pā ana ki te wai nā te mea he mea whakawhitinga wai tonu. Ina tāpirihia te mātai ahi, ka tāpiri i ngā molekīni oksikini ki te mata e hiki ai te kaha mata o ngā matēria pouropiaina ki waenganui i te 45 ki te 50 dynes per square cm i roto i te paku nei i te haurua hēkona. Mō ngā matēria e kore ai e taea te hiahia ki te wera, ko te tohatoha korona e mahi pai ana, e hāpai ana i ngā hononga e toru ngā wā ake te kaha kia kaua ai e rerekē, e pakaru rānei te āhua o te matēria. I muri i tētahi arataki mātai, ko te whakahaere i ngā mātai dyne e whai ana i te paerewa ISO 8296 hei pupuri i te kounga kia tino pai tonu ia kapuni e puta mai ana i te rārangi huringa.

Ngā Hua Tupu e Pa Ana ki te Pātai o ngā Tioata Aqueous Intaglio

Ko te herekenga angamau ka noho pātata ki ngā āhuatanga e toru e uru whenua ana: te ōrite o te papanga, te kimikimeko o te tā, me ngā āhuatanga whakamaroke. Mā ēnei katoa ka whakatauia menā ka mau tonu te takotoranga tāpihi, i te wā e pā ana te parirau, i runga rānei i te wehe.

Te Pānga o te Momo Papanga Plastik ki te Mahi Tūtahi o te Tā

Ka rerekē te nui o te energi mata o ngā paraiharai rereke, e hāngai ana ki te āhua o te kawenga o ngā pūpahi ki runga. Ko ngā matapae e whai energi teitei ana, pērā i te PET, he uara kei te 45 dyne/cm, tino pai hoki mō te whakaputa inka. Engari ko te poliparopaireni he uaua nā te mea he iti ake i te tohu 34 dyne/cm. Mō ērā e mahi ana ki ngā matapae e kore nei e mau tonu ngā takotoranga, kei te tīmata ētahi ara hei whakatika i tēnei raru. He pai ngā mātai plasma ki ngā mata paratini, e hiki ake ana i te 31 ki te tata ki te 60 dyne/cm, ā, i tā te Rōpū Pūtaiao Paraiharai i tā karapu ai i te tau 2023. Ka āwhina tēnei momo whakarerekē mata i te hononga tika i waenganui i ngā matapae.

Te Pānga o te Huihuinga Inka ki te Hononga ki ngā Tautuhinga Kāore nei i te Wātea

Ko ngā inu intaglio ā-whāngai hou e whai mātai acrylate (35-50% m te taumaha), ngā kaiwhakapai, me ngā kaiāwhina here. Ka hāere ngā tiniti resin maroke ki ngā hanganga iti o te mata, i te wā e hanga ana ngā kaiwhakapai cationic i ngā hononga electrostatic ki ngā papamuri kua whakauruhia. Ko ngā kaihanga matua e whakatika pana haumanu (8.5-9.2) me te uaua (1,200-1,800 cP) kia pai ai te rere me te kotahitanga o te kiri, ināianei kaore i te whakaroa i te pono o te tuku.

Ngā Tikanga Tatau me te Hanganga Kiri ki ngā Pūnaha Intaglio Ā-Whāngai

Ko te parai aunoa e aukati ana i te paraihanga tūmataiti, kei te parai tere te mata ka pakaru te wai ka whakamāngere ake te here. Ko te parai tino pai ka āki ai i te 65-75°C me te huaki 40-50%, e āki ana i tētahi tikanga āhuatanga:

1. Te wehenga wai (0-90 sekene)
2. Te kuinga resin (90-180 sekene)
3. Te hononga huinga (180-300 sekene)

Ko tēnei tūtohi e tiaki ana i te hanganga katoa o te kiri, i te wā e hāpai ana i ngā roaumauma o ngā papamuri parai hekenga.

Ngā Tikanga Whakauru hei Whakanui i te Taea o ngā Parai

Ritenga Piringa Atamira mō te Whakanui ake i te Taea o te Takotoranga Aratohu

Ina tāpirihia te whakaritenga o te haora ki ngā mata o ngā pōhara, ka tino pāngia i ngā haora kua ionitia e waiho ana ngā wāhi maha e hāpai ana i ngā aronga ki te matēria. Ka piki ake te nui o te mata i tēnei tikanga, mai i raro i te 40 ki te pēnei i te 55 dynes per square centimita e ai ki te rangahau a Enercon Industries i te tau ki muri. He aha tēnei e whakaatu ana? Nō reira, e āwhina ana kia pai ake te hononga ina whakamahia ngā tinta aqueous intaglio ki ngā matēria pērā i te polyethylene, ngā kiri PET rānei. A, kei konei te mea hāpai ake i te āhua taurangi ki ngā tikanga tawhito. Ko ngā taputapu ā-tau e waiho ana he toipoto e āwhina ana i ngā raruraru ki muri. Engari me te whakaritenga plasma, kāore he aha i waiho i muri i te tikanga. Anō, e kōrerotia ana e mātou te eke ki ngā nui mata tino teitei pērā i te kōpae e 72 dynes/cm kaore he take ki ngā take taiao e tū ake ana me ngā whakaritenga ā-tau.

Te Whakarerekenga ahi me Tōna Pānga ki te Kaha o te Mata o ngā Polyolefin

Ina whakamahia e tātou te whakarerekenga ahi ki ngā matērau polyolefin, ka pūhui kia āhu mai te whakaputa i te mata, e hāngai ana ki te hanga i ngā rōpū hydroxyl me carbonyl e nui ana. Mō ngā kōpae polypropylene, āno he wā poto i waenganui i te 0.02 ki te 0.04 hēkona anake ka taea te whakapakari ake i ngā rīwhi dyne—mai i te 29 ki te 45 pea. He nui ake tēnei i te roa taumaha 38 dyne ki te centimita e hiahiatia ana mō te herekanga pai o ngā tinta pātiki ai. Ko tētahi atu aronga e tika ana kia kōrero ko te tikanga e hāngai ana ki te hanga i ētahi iti noa ngutu ki te mata o te matērau, e neke haere ana i waenganui i te 0.5 ki te 1.2 micrometers i te uara Ra. Ka āwhina tēnei ahurewa mataiti ki te whakapai ake i te herekanga mekanikē ina whakaputaina ngā piri a muri ake nei.

Corona vs. Plasma: Te Whakawhitinga i te Rawa o te Whakahohe i te Mata

I tētahi rangahau ake i ngā takotoranga mata i te 2023 ka kitea ko te HDPE i whakarerekina e te paraihe i mau tonu ai te here pene 94% i muri i ngā wā 500 o te pouri, i te tuatahi ki te 78% mō ngā tauira i whakarerekina e te corona.

Te Ngaengae i ngā Taumata Dyne i muri i te Whakarereketanga hei Whakapono i te Here o te Pene

Ka taea te whakamātau i te wehenga o te mata tūmatanui ka tūpono i roto i te 30 ki te 60 dynes ia rākau. Ina mahi ana me ngā tioata huinga-wai, ko te whāinga mō te nuinga o ngā kaitūhono he iti noa rānei i te 42 dynes/cm ki ngā mata polyolefin, ā, he pērā anō i te 50 dynes/cm, teitei ake rānei mō ngā matapae pērā i te PEEK me ētahi atu paraihe hinu pūtaiao. Kua kawea e te hangarau hou te karu whakaata UV Mārohirohi ki ngā ratonga whakaputa, e āwhina ai i ngā kaihanga ki te whai mōhio i ngā taumata o te hau ki ngā mata i te wā o te whakaputa. Ko ngā panonitanga e herea ana i waenganui i te 15% ki te 22% te ihirangi hau ki te katoa. Ka āwhina tēnei momo whai mōhio i te tīmata tonu i ngā raruraru e puta ana i muri i te tīmata o te tā.

Te Whakatinana i te Ao Tūmatanui me ngā Rautaki Whakapaipai

Ko te tinta mātāmira ā-whaihu e pakari ana ki ngā mata papakupenga ina rite te whakaritenga o te mata ki ngā ītao o te matērihi. I kitea tātou i tēnei me ngā kiri PET i pāngia e te hau puipui noho-i-te-tai. Kua pupuri aua tauira i te 95% o te uaua o te tinta i muri i te whakamahi, i te wā e kore pea ngā karaehe e hiahiatia anō mō te whakamātau mā te tape. Ka tūruroa tēnei aronga ki ngā kōpae polypropylene hoki. Mēnā kāore he whakaritenga tika, ka wehe tonu te tinta i roto i tētahi rā nō te mea kāore i taea e ia te whakamarie i te mata.

Whakapumautia e ngā whakamātautau roa te marino o te punaha: kua pupuri te polyethylene i te 85% o te angaimārama o te tinta i muri i ngā 1,000 wāhanga takotoranga (40°C / 90% RH) ā, kua tutuki i ngā paerewa ASTM D5264 mō te manawaroa ki te parurenga. Ko ngā tikanga matua hei whakapai ake:

• Te rite o te kaha o te mata : Whai 40-50 dynes/cm mō ngā polyolefin mā te ahi, mā te hau puipui rānei
• Ngā whakarerekenga mō te rheology : Tiakina te pātata o te tioata i waenganui i te 12-18 Pa·s mō te rere taurite me te hanga kiri
• Ngā tikanga horapa : Whakamahia te horapa maha-wā inarārawera ki te 60-80°C hei aukati i ngā wāpū

Mō te whakapūmau kounga, kei te hono atu ngā kaihanga increasingly i te whakamātau huinga-huinga (ISO 2409) ki ngā taputapu matātoko matihiko kia taea ai te ine i te kaha o te hononga. Kua whakaatuia ko ēnei takotoranga kotahi he iti ake te paraikete e 34% i ngā hua e hiahiatia ana nui mō te whakaputa pakitara.

Ngā Pātai e Patai Pūnoa Ana

He aha ngā vantunenga taiao o te whakamahi i ngā tioata intaglio aqueous?

Ka whakaroa ngā tioata intaglio aqueous i ngā karaihe organik epeketia (VOCs) 70-90% mō te tioata tuuruhi kua nohoika. E pai ana tēnei mō te kōwhiringa taiao, ā, e tautokona ana i te arataki e pā ana ki ngā tikanga EPA Toxic Substances Control Act.

Pēnāhea ka pā te mātai mata ki te herekōtahi o te tioata?

Ko te whakaritenga mata he wāhi matua nui ki te whakapai ake i te here o te tioata, āhuareka rawa atu mō ngā parahihe e iti ana te kaha mata. Ko ngā tikanga pērā i te ahi me te mātā rewharewha e whakapaua ai te kaha mata, ka taea ai te here pai ake o te tioata.

He aha te take e nui ana te uaua i te tuhinga intaglio?

Ko te uaua he mea matua nui i te tuhinga intaglio nā te mea ka whakaponoia kua rite te putu kia pakaru ai ngā wāhi iti nei ki te papamuri tuhinga engari anō hoki kia rere ke te waiho i te wāhi. Ka taea e te tika o te uaua te wehe i ngā tuhinga hou mai i ngā tuhinga noa.