E nehenehe te nene'iraa i te mau hoho'a teata e faatupu i te mau fifi, e ua riro te taheraa toto ei fifi matauhia e te feia hamani buka. Te faataa ra te toparaa mǎhu i te ereraa te mǎhu i nia i te mata o te tao'a no te mau mea mai te hepohepo iti, aita i navai te rapaauraa UV, e te mau tao'a faaî i te peni. Eita te ereraa rahi o te peni neneiraa e faaino noa i te huru o te mau tao'a, tera râ, e faatupu atoa te reira i te vavahiraa i te mau pǔpǔ tao'a. I roto i teie tumu parau, E hi'opoa tatou i na tumu rahi e toru o te taheraa toto i nia i te mau hoho'a teata neneihia e e horoa tatou i te mau ravea aravihi no te faatitiaifaro i teie fifi.
1. Te hepohepo iti o te mau tao'a hoho'a teata
Te hoê o te mau tumu rahi no te mau toparaa me'ume'u i ni'a i te mau hoho'a teata tei nene'ihia, o te iti ïa o te arepurepuraa i ni'a i te hoho'a teata. I te pae rahi, te teitei o te hepohepo o te mata, te maitai a'e o te peni i muri a'e i te neneiraa. Aita e fifi i te pae no te hepohepo o te rahiraa o te mau tao'a mai te pepa, tera râ, e mea pinepine te mau tao'a mai te hoho'a teata i te ore e tano. E nehenehe teie hepohepo iti i nia i te mata e faatupu i te hoê pipiki ore o te me'ume'u, o te nehenehe e faaiti i te huru o te neneiraa e te mau topata peni. Mai te mea e, ua erehia te peni i te roaraa o te ohipa nene'iraa, E nehenehe ta outou e faaohipa i te hoê pene dyne no te hi'opoa i te faufaaraa o te mau tao'a. I te pae rahi, te mau tao'a e te hoê tension i ni'a i te fenua iti a'e i te 38 E mea pinepine te mau datones i te erehia. No te faaafaro i teie fifi, A hi'opoa i te mau faatitiaifaroraa i muri nei:
TE. Te rapaauraa i ni'a i te mata: A faaohipa i te huru rapaauraa i nia i te mata no te haamaitai i te hepohepo o te mata o te hoho'a teata. E nehenehe te rapaauraa i te corona e faatupu i te reira, te rapaauraa i te auahi aore ra te rapaauraa i te plasma, o te nehenehe e taui i te mau huru o te mata, faarahi i te wettability e faaitoito i te piriraa o te peni.
B. Te ahu matamua: Hou a nene'i ai i te hoho'a teata, a tapo'i i te hoê ahu matamua tano i ni'a i te hoho'a teata. E tauturu te mau primers i te faatupu i te hoê taairaa i rotopu i te me'a e te mata o te mau tao'a, te haamaitairaa i te piriraa o te me'a e te faaitiraa mai i te toparaa o te me'a. A ani i te taata hoo no te ma'iti i te hoê buka matamua tano o te tu'ati i te mau materia hoho'a teata e te mau hoho'a. E faaohipa atoa te tahi mau taiete neneiraa buka i te mau tao'a neneiraa PET no te neneiraa. E taui te ahu i te mau huru o te mata o te mau tao'a PET, and the performance is stable, and the firmness of the ink layer can be effectively improved.
2. Insufficient UV curing
Insufficient UV curing will also lead to ink droplets when printing film-type self-adhesive materials. Incomplete curing will result in an ink layer that does not achieve optimum hardness and adhesion, resulting in poor smearing and fastness. Incomplete curing means that the surface layer of the printing ink has been dried and cured, but the inside is not completely cured. The ink loss caused by this kind of situation mostly occurs in the printing of large area patterns. This is because large-area patterns use a large amount of ink, and the inside of the ink layer is not so easy to cure completely. No te faaafaro i teie fifi, you can refer to the following solutions:
TE. UV Intensity and Dose: Ia papu maitai e, ua haamau-maitai-hia te faanahoraa no te faaora UV e ua horo'a mai te reira i te rahi e te faito UV e navai. Hi'opo'a e taui i te faito o te UV no te farii i te rapaauraa maitai roa a'e no te mau materia taa ê e te hoho'a teata e faaohipahia ra. Moekara, E rave te mau hoho'a pouri a'e i te maramarama rahi a'e UV e e titau pinepine i te mana rahi a'e no te maro roa. A hi'o i te feia hamani peni e te mau ravea no te ite i te mau ravea faaoraraa UV.
B. Te taime e te anuvera: A faataa i te taime no te faaora e te anuvera no te haapapû e, ua navai te iteraa e no te haapapû e, ua ora roa te ahu peni. A hi'o i te mau aratairaa a te taata hamani mǎhu no te mau ravea faaora e a taui i te mau huru neneiraa e te mau mauhaa i faaohipahia.
C. Te oraraa o te mau mori UV: I teie nei, te oraraa o te mau mori UV i ni'a i te mau rave'a nene'iraa buka i rotopu 800 e 1000 hora. If the lamps have not been replaced when the rated life is exceeded, it is easy to cause the ink to dry out. Āre'a, when replacing the UV lamp tube, it is necessary to make detailed records, and when the UV lamp tube reaches the service life, it must be replaced in time.
3. Excessive ink additives
The presence of excessive ink additives will cause ink drops when printing film-type self-adhesive materials. I roto i te ohipa neneiraa, the printing ink often encounters the problems of thickening, high viscosity and poor inking. Āre'a, many operators will choose to add varnish to improve the fluidity of printing ink. Āre'a, if the amount of varnish is used improperly, it is very easy to affect the ink viscosity, surface tension and adhesion performance, resulting in ink drop. Please consider the following solutions to resolve this issue:
TE. Ink Formulations: Hi'opo'a e hi'opo'a i te mau rave'a no te faaiti i te faaohiparaa rahi i te mau tao'a tahi. No te mea ho'i e, eita te mau tao'a atoa e nehenehe e faaau maitai i te mau melo, E noaa maitai a'e ia ite i te me'ame'a ti'a na roto i te rave-amui-raa i te ohipa e te taata hoo memeta no te hamani i te hoê faanahoraa me'ame'a matauhia o te faaafaro i te mau huru me'ame'a e o te faaiti i te atâtaraa ia topa te me'a.
B. Te hi'opo'araa i te tu'atiraa: A tono i te mau materia i te taata hoo mǎhu no te hi'opoaraa no te haapapu e te tuea ra anei te mǎhu i faaohipahia i te mau materia hoho'a teata e te huru neneiraa. No te ite i te mau taairaa aore ra te mau taa ore o te nehenehe e faatupu i te mau toparaa pape, e ravehia te mau hi'opoaraa i rotopu i te mau hoho'a teata e te mau hoho'a teata. A tamata i te mau ravea neneiraa e rave rau e a taui i te mau faito taa ê no te ite i te hoê amuiraa maitai roa ' ' e o te horoa mai i te piriraa maitai ma te faaiti i te toparaa toto.
Tā'ei
E mea titauhia te hoê rave'a huru rau no te faatitiaifaro i te mau fifi o te nene'iraa i te mau hoho'a teata. Na roto i te faaafaroraa i te mau tumu o te hepohepo iti, aita i navai te rapaauraa UV e te rahiraa o te mau tao'a tahi, E nehenehe te mau ravea neneiraa e haamaitai rahi i te piriraa o te peni e e fana'o i te huru neneiraa maitai a'e. No te haamaitai i te hepohepo, a faaohipa i te mau ravea rapaauraa aore ra te mau ahu matamua, A faanaho i te mau rave'a UV no te farii i te rapaauraa taatoa, e te mau rave'a no te faaiti i te faaohiparaa i te mau tao'a tahi. Na roto i te fariiraa i teie mau faatitiaifaroraa, E nehenehe ta te feia hamani hoho'a e upooti'a i ni'a i te mau fifi o te toparaa peni e e hamani i te mau hoho'a maitai roa i ni'a i te mau hoho'a teata.
