Nnianim asɛm a ɛfa flexographic tintim ne pinholing ho .
Dɛn ne flexographic tintim?
Flexographic printing yɛ ɔkwan a wɔfa so tintim nhoma a agye din a wɔde di dwuma wɔ nneɛma a wɔde kyekyere nneɛma mu. Ɛde mprɛte a ɛyɛ mmerɛw a wɔde tintim nhoma di dwuma de ink gu nneɛma ahorow te sɛ krataa, plastic, ne krataa so. Wonim saa ɔkwan yi sɛ ɛyɛ nea wotumi de yɛ nneɛma pii na etumi yɛ nkyerɛwee a ɛyɛ papa ntɛmntɛm na ɛyɛ adwuma yiye.
Dɛn nti na flexographic tintim ho hia?
Wɔ nnɛyi gua a akansi wom no mu no, nneɛma a wɔde kyekyere nneɛma ho a ɛyɛ fɛ ho hia na ama wɔatumi agye adetɔfo adwene. Flexographic printing boa ma wɔyɛ nneɛma a ɛyɛ fɛ na ɛtra hɔ kyɛ a ɛda nsow wɔ sotɔɔ ahorow mu. Ɛyɛ nea eye ma nneɛma akɛse a wɔyɛ esiane ahoɔhare ne ahoɔden nti.
Dɛn ne pinholing?
Pinholing kyerɛ mmeae nketenkete a wontintimii a epue wɔ substrate no so bere a wɔretintim no. Saa nsensanee yi te sɛ ntokuru nketenkete na ɛhaw beae a wɔatintim no a ɛkɔ so no. Pinholing yɛ sintɔ a ɛtaa ba wɔ flexographic printing mu na ebetumi anya print quality so nkɛntɛnso kɛse.
Nkɛntɛnso a pinholing nya wɔ print quality so .
Pinholing nya nneɛma a wɔatintim no so nkɛntɛnso wɔ aniwa so denam nsonsonoe a ɛba wɔ mmeae a ɛyɛ kɔla a ɛyɛ den no so. Eyi betumi atew ne nyinaa so na ama nneɛma a wɔde ahyɛ mu no ayɛ sɛ nea ɛnyɛ adwumayɛfo de. Ɛyɛ nea wotumi hu titiriw wɔ kɔla ahorow a ɛyɛ den a ɛyɛ den mu na ebetumi anya adetɔfo adwene ne adetɔ ho gyinaesi ahorow so nkɛntɛnso.
Ɛho hia sɛ wodi pinholing ho dwuma .
Nneɛma a ɛde pinholing ba no ho ntease ne ne ho dwuma a wobedi no ho hia kɛse na ama wɔatumi akura print a ɛkorɔn mu. Ɛdenam saa sintɔ yi a wobehu na wɔasiesie so no, mfiri a wɔde tintim nhoma no betumi ama wɔn nneɛma no ayɛ anigye kɛse na wɔakwati bere a wɔde gyae adwuma no a ɛho ka yɛ den anaasɛ wɔbɛsan atintim.
Dɛn ne pinholing wɔ flexographic tintim mu?
Nkyerɛase ne aniwa su ahorow .
Pinholing yɛ mmeae nketenkete a wontintimii wɔ substrate no so. Saa nsensanee yi taa yɛ nea ɛnyɛ pɛpɛɛpɛ wɔ ne kɛse ne ne kɛse mu, na ɛte sɛ pinholes. Wɔsɛe beae a wɔatintim no pɛpɛɛpɛ na wotumi hu titiriw wɔ kɔla a ɛyɛ den mu.
Sɛnea pinholing nya print quality so nkɛntɛnso .
Pinholing ma nneɛma a wɔatintim no mu duru ne ne kɔla a ɛyɛ hyew no so tew. Ɛma ɛba sɛ ɛnyɛ pɛpɛɛpɛ a ebetumi ama nneɛma a wɔde ahyɛ mu no ayɛ sɛ nea ɛnyɛ adwuma. Saa sintɔ yi yɛ ɔhaw titiriw wɔ nneɛma a wɔde kyekyere nneɛma mu a wɔde nneɛma a wɔde hyɛ mu a ɛyɛ fɛ ho hia kɛse ma adetɔfo ani gye ho.
Pinholing a abu so wɔ flexographic tintim mu .
Pinholing yɛ asɛm a ɛtaa ba wɔ flexographic printing mu esiane nneɛma te sɛ ink drying ahoɔhare, substrate surface quality, ne nnwinnade nhyehyɛe nti. Ɛba bere a ink ntumi nkata ade a ɛwɔ ase no so koraa no, na ɛma ɛyɛ mmerɛw anaasɛ ntokuru nketenkete. Nsiesiei a ɛfata ne nsakrae a wɔyɛ no betumi aboa ma nea ɛba no ayɛ ketewaa bi.
Nneɛma a ɛde pinholing ba wɔ flexographic tintim mu .
Nsɛm a ɛfa ink ho .
Fast drying speed of inks : Sɛ ink no yow ntɛmntɛm dodo a, ebia wɔrentumi nkata substrate no so koraa, na ɛde pinholing ba. Eyi betumi afi ɔhyew a ɛkɔ soro anaasɛ ink a wɔmfa nyɛ adwuma yiye mu aba.
High viscosity of inks : Inks a ɛyɛ den dodo no betumi ama coverage a ɛnyɛ pɛpɛɛpɛ na ɛnyɛ nea ɛkɔ fam yiye wɔ substrate no mu, na ɛde pinholes aba.
Efĩ anaa nneɛma nketenkete a ɛwɔ ink mu : efĩ a ɛwɔ ink no mu no betumi asɛe nhoma tintim no na ama nneɛma nketenkete a ɛwɔ beae a wɔatintim no aba.
Nsɛm a ɛfa mprɛte ho .
Nneɛma a ɛnkɔ so anaasɛ nneɛma a asɛe wɔ mprɛte no ani so : mprɛte a asɛe anaasɛ ɛnyɛ pɛpɛɛpɛ no betumi asiw ink a wɔde bɛkɔ baabi foforo no ano, na ɛde pinholing aba.
Dot depth anaa shape a ɛmfata wɔ printing mprɛte so : Ebia nsensanee a ɛnyɛ den dodo anaasɛ ɛwɔ nsusuwii a ɛnyɛ pɛpɛɛpɛ no rentumi nkura ink a ɛdɔɔso, na ɛde nkataso a enni mũ ba.
Nsɛm a ɛfa nnwinnade ho .
Nhyɛso a ɛnyɛ pɛpɛɛpɛ a ɛnyɛ pɛpɛɛpɛ : nhyɛso a ɛnhyia wɔ printing mprɛte ne substrate ntam no betumi ama mmeae bi anya ink a ɛnnɔɔso, na ɛde pinholes aba.
Nsiesiei a ɛmfata wɔ mfiri a wɔde dwira so : mfiri a wɔde ma nneɛma a ɛyɛ hyew a wɔde ahyɛ mu a ɛkorɔn dodo anaasɛ ɛba fam dodo no betumi aka ink a ɛma ɛyow na wɔde akɔ baabi foforo, na ɛde pinholing aba.
Nsɛm a ɛfa substrate ho .
Mismatch between substrate surface tension and ink : Sɛ substrate no soro nhyɛso no ne ink no nhyia a, ebia ink no rentrɛw pɛpɛɛpɛ, na ɛde pinholes ba.
Mfutuma, ngo, anaa efĩ afoforo a ɛwɔ substrate no so : efĩ a ɛwɔ substrate no so no betumi asiw ink kwan sɛ ɛbɛbata ho yiye, na ɛde voids aba baabi a wɔatintim no.
Ano aduru a wɔde yɛ pinholing wɔ flexographic tintim mu .
Ink ahoɔden a wɔde yɛ nsakrae .
Sesa ink formulations : Yɛ nsakrae wɔ ink formulations mu na ama woanya ahoɔhare a eye sen biara a ɛma ɛyow ne nsu a ɛyɛ hyew. Eyi hwɛ hu sɛ ink no kɔ baabi foforo yiye na ɛtew pinholing a ɛba no so.
Retarders anaa thinners a wode bɛka ho : Sɛ wode retarders anaasɛ thinners ka ho a, ebetumi ama ink no ayow brɛoo, na amma ayow ntɛmntɛm dodo na ama pinholes aba.
Hwɛ sɛ ink ahotew : Fa ink a ɛyɛ papa di dwuma na hwɛ hu sɛ ɛho nhia sɛ wɔde efĩ ba. Hohoro ink nsukorade ne nneɛma a wɔde kɔma no ho daa na ama ink ahotew akɔ so.
Prɛte a wɔde tintim nhoma a eye sen biara .
Hwɛ na wɔsesa mprɛte a asɛe : Hwɛ mprɛte a wɔde tintim nhoma no mu daa sɛ ebia asɛe anaasɛ nneɛma a ɛnkɔ yiye wɔ hɔ anaa. Fa mprɛte a asɛe no si ananmu na ama woatumi de ink mpo akɔ baabi foforo.
Mprɛte ho nneɛma a ɛfata a wobɛpaw : Paw mprɛte nneɛma a ɛma ink kɔ baabi pa na ɛyɛ nea ɛko tia ɔfe ne nea ɛsɛe. Susuw ho sɛ wode elastomer nsateaa a ɛko tia solvent bedi dwuma na ama woatumi ayɛ adwuma yiye.
Nnwinnade a Wosiesie ne Nsakrae a Wɔyɛ .
Nhwehwɛmu ne calibrating impression pressure : daa hwɛ na hwɛ impression pressure a ɛda printing plate ne substrate ntam no so. Hwɛ hu sɛ nhyɛso a ɛkɔ so daa ma ink a wɔde bɛkɔ baabi foforo a eye sen biara.
Adjusting Drying Equipment Settings : Yɛ nsakrae wɔ drying equipment nhyehyɛe mu ma ɛne ink drying ahwehwɛde ahorow hyia. Kwati nhyehyɛe ahorow a ɛkɔ soro dodo anaasɛ ɛba fam dodo, a ebetumi aka ink a ɛyow na ayɛ foforo.
Substrate ansa na wɔreyɛ aduru .
Surface treatments a wɔde di dwuma : Fa surface treatments te sɛ corona anaa ogya aduru di substrates ho dwuma na ama wettability ayɛ kɛse na ama ink a ɛbata ho no atu mpɔn.
Hwɛ a wobɛhwɛ sɛ substrates ho tew : Hohoro nsu ase yiye ansa na woatintim na woayi mfutuma, ngo, ne nneɛma afoforo a ɛde efĩ ba a ebetumi ama woanya pinholing no afi hɔ.
Nneɛma a atwa yɛn ho ahyia ho nhyehyɛe .
Ɔhyew ne ɔhyew a wɔde hwɛ so : Kɔ so yɛ hyew ne ɔhyew a ɛfata wɔ baabi a wotintim no mu na amma ink anyow ntɛmntɛm dodo anaasɛ ɛbɛyɛ nea ɛyɛ nwene dodo.
Ɛlektrik a ɛnyɛ adwuma a ɛbɛtew so : Tew anyinam ahoɔden a ɛnyɛ adwuma so wɔ baabi a wotintim no na amma mfutuma atwetwe, na ebetumi ama pinholing aba. Fa mfiri a ɛko tia static di dwuma na hwɛ ma nsu a ɛyɛ nwini no kɔ so yiye.
Awiei: Flexographic printing a ɛyɛ papa a wɔbɛma ayɛ yiye denam pinholing a wosiw ano so .
Nneɛma atitiriw a ɛde pinholing ba ne ano aduru ho nsɛm tiawa .
Pinholing yɛ sintɔ a ɛtaa ba wɔ flexographic printing mu a ɛba bere a ink ntumi nkata substrate no so koraa, na ɛma mmeae nketenkete a wontintim a ɛte sɛ pinholes no. Nneɛma titiriw a ɛde pinholing ba no bi ne:
Ink-related issues : ahoɔhare a ɛma ɛyow ntɛmntɛm, nsu a ɛyɛ hyew kɛse, anaa efĩ a ɛwɔ ink no mu.
Nsɛm a ɛfa mprɛte ho : mprɛte a asɛe anaasɛ ɛnyɛ nea ɛkɔ so daa.
Nsɛm a ɛfa nnwinnade ho : impression pressure pressure anaasɛ drying equipment settings a ɛmfata.
Nsɛm a ɛfa substrate ho : Mismatched surface tension anaa efĩ a ɛwɔ substrate no so.
Ɛho hia sɛ wɔde proactive pinholing siw ano .
Pinholing a wɔde bedi dwuma wɔ ɔkwan a ɛyɛ nnam so no ho hia kɛse na ama wɔatumi akura print a ɛkorɔn mu na wɔatew bere a wɔde yɛ adwuma no so. Nsiesiei a wɔyɛ no daa, ink a wɔde yɛ no yiye, ne substrate a wɔde di kan yɛ no betumi aboa ma wɔasiw saa sintɔ yi ano na ama aba no ayɛ nea ɛkɔ so daa.
Nsusuwii a ɛfa nkɔso a aba wɔ flexographic printing technology mu ho .
Nkɔso a aba wɔ flexographic printing technology mu no kɔ so ma nea ɛyɛ papa no tu mpɔn. Nneɛma foforo a wɔayɛ wɔ ink a wɔyɛ, mprɛte a wɔde tintim nhoma, ne nnwinnade a wɔde yɛ nneɛma ho nhyehyɛe mu no reboa nhoma tintimfo ma wɔanya nea eye sen biara a sintɔ kakraa bi na ɛwɔ mu. Ɛdenam nkɔso ahorow yi a wɔbɛkɔ so ayɛ no foforo so no, printa ahorow betumi ama wɔn nhyehyɛe ahorow no ayɛ kɛse na wɔde nneɛma a wɔde kyekyere nneɛma ho ano aduru a ɛkorɔn ama.
