Nhwehwɛmu: 496 Ɔkyerɛwfo: Roman Publish Time: 2024-08-31 Mfiase: Beaeɛ
Gravure printing ne sɛ ɛbɛma printing plate no ani nyinaa ayɛ nea wɔde ink adura ho, na afei wɔde afiri soronko bi a wɔde twitwa ink no afi ink no fã a ɛda hɔ kwa no mu, sɛnea ɛbɛyɛ a ink no bɛkɔ akɔto ink no fã a ɛyɛ mfonini no mu nkotoku no mu nko, na afei wɔde ink no akɔ so no, wɔde ink no bɛkɔ substrate no ani, de ayɛ ade, de ayɛ ade. Gravure tintim yɛ tintim tẽẽ. Printing plate no fã a ɛyɛ mfonini no yɛ kɔntɔnkrɔn, na sɛnea mfonini no gyina hɔ no, ɛsono sɛnea ɛte, wɔma nhoma tintim mprɛte no fã a ɛda hɔ kwa no so, na ɛwɔ cylinder plane koro no ara mu.
Rotogravure nhyehyɛe no yɛ ɔkwan a wɔfa so de nneɛma kɔ baabi foforo tẽẽ a wɔfa so tintim wɔ nnua-pulp fiber a egyina so, nea wɔayɛ, anaa nea wɔayɛ no laminated so, a nea ɛka ho ne:
—Films te sɛ Pet, Opp, Nylon, ne PE,PVC,cellophane .
—Krataa .
—Carton Board .
—Aluminum krataa a wɔde kyerɛw nsɛm .
Rotogravure printing Esiane sɛ afiri a wɔde tintim nhoma no yɛ adwuma wɔ ɔkwan a ɛkorɔn so nti, mprɛte no su ye, na ɛnam saa kwan yi so no, ɔkwan a wɔfa so yɛ no yɛ mmerɛw sen lithographic tintim, ɛnyɛ den sɛ wobetumi ayɛ no yiye, adeyɛ no nsu no te sɛ nea edidi so yi:
Pre-printing ahosiesie → wɔ cylinder mprɛte so → Yɛ kɔla ho kyerɛwtohɔ no mu nsakrae → formal printing → post-press processing
Wɔ gravure printing no mu no, printing cylinder no di akɔneaba wɔ ink pan no mu baabi a nkwammoaa a wɔakyerɛw so no hyɛ ink ma. Bere a cylinder no di akɔneaba fi ink pan no ho no, oduruyɛfo no blade no yi ink biara a ɛboro so no fi hɔ. Nea ɛkɔ akyiri no, wɔde cylinder no ba substrate no so, na wɔde rɔba a wɔakata so impression roller no mia so.
Nhyɛso a ɛwɔ roller no mu, ne capillary draw a ɛwɔ substrate no mu no ma ink fi nkwammoaa a ɛwɔ printing cylinder no mu no kɔ substrate no ani tẽẽ. Bere a nhoma a wɔde tintim nhoma no san kɔ ink kyɛnsee no mu no, ade a wɔde kyerɛw nsɛm no fã a wɔatintim no fa dryer so kɔ nea edi hɔ a wɔde tintim nhoma no so, a mpɛn pii no ɛyɛ kɔla soronko anaasɛ ebetumi ayɛ varnish anaasɛ ade a wɔde kata so.
Color to color registration a ɛyɛ pɛpɛɛpɛ no nam automatic side ne length register control systems so na ɛba.
Sɛ wopɛ sɛ wotintim wɛb-fed a, bere a woatintim kɔla biara na wɔde biribiara a wɔde kata so ahyɛ mu akyi no, ‘wɔasan asiesie’ wɔ nhoma mmobɔwee a wɔawie mu.
Afei yɛde yɛn adwene si tintim nhyehyɛe no so betumi anya nkitahodi a ɛho hia sen biara no mu biako tintim no so nkɛntɛnso tẽẽ - kɔla a wɔde kyerɛw .
Mprempren, mfiri dodow no ara a wɔde tintim nhoma a wɔde kyerɛw nsɛm a ɛyɛ adwuma no de kɔla a wɔde kyerɛw kɔla ahorow a wɔde kyerɛw wɔn din no bedi dwuma de akyerɛw wɔn din, a ɛma wɔn din a wɔkyerɛw no yiye ne nea wotintim no yɛ papa kɛse.
Wɔ web gravure printing afiri no so no, afiri bi a ɛyɛ adwuma ankasa wɔ hɔ a wɔde ahyɛ mu. Afiri no yɛ scanning ti, pulse generator, ɛlɛtrɔnik controller, adjusting motor, overprint adjusting roller ne nea ɛkeka ho.
Sɛ wɔde nkyerɛwde a wɔakyerɛw so a ɛwɔ krataa a wɔatintim no so denam scanning head no so a, wɔde pulse signal no bɛkɔ electronic controller no so, sɛ overprint mark no kɔla a ɛto so abien no yɛ mfomso ansa na agyiraehyɛde no kɔla a edi kan no aba anaasɛ ɛno akyi a, pulse time no a ɛbɛba no bɛyɛ nea ɛnteɛ, enti ɛlɛtrɔnik controller no afi ase ahyɛ motor no ho mmara, enti kɔla a edi kan no yɛ nea ɛyɛ frɔmfrɔm no ne nea ɛboro so no a wɔde bɛfi ase a wɔde bɛkyerɛw no afi hɔ.
Nea ɛka ho no, nneɛma a edidi so yi nso wɔ hɔ a ebetumi aka sɛnea nhoma tintim no yɛ papa na ɛyɛ adwuma yiye, nanso yebenya ano aduru a ɛfata .
a) T he ink no kɔla nyɛ pɛpɛɛpɛ .
Ink kɔla a ɛyɛ nwonwa bere ne bere mu no sesa wɔ nneɛma a wɔatintim no so. Akwan a wɔfa so yi fi hɔ no bi ne: sɛ wɔbɛteɛteɛ mprɛte a wɔde tintim nhoma no mu kurukuruwa no, sɛ wɔbɛsesa squeegee no anim ne nhyɛso anaasɛ wɔde foforo besi squeegee no ananmu.
b) Fuzzy ne Linty tintim .
Mfonini a wɔatintim ne dodow, paste, phenomenon a burrs wɔ mfonini no ano. Akwan a wɔfa so yi nneɛma fi hɔ no bi ne: anyinam ahoɔden a ɛnyɛ adwuma a wobeyi afi substrate no ani, polar solvents a wɔde bɛka ink no ho, sɛnea ɛfata ma printing pressure no akɔ soro, na wɔayɛ nsakrae wɔ squeegee no gyinabea ne nea ɛkeka ho.
c) version a wɔasiw ano .
Ink drying wɔ printing plate mesh, anaasɛ printing plate mesh tokuru no yɛ krataa ti nhwi, krataa powder phenomenon, a wɔfrɛ no blocking. Akwan a wɔfa so yi nneɛma fi hɔ ne sɛ: ma nneɛma a wɔde yɛ ink no mu nneɛma nkɔ soro, ɛtew ahoɔhare a ink no ma ɛyow so, krataa a wɔde tintim nneɛma a ɛwɔ soro a ɛma ahoɔden kɛse no so.
D) Ink a ɛregu .
Nneɛma a ɛyɛ nwonwa a ɛfa nsensanee a epue wɔ field fã a ɛwɔ print no so. Akwan a wɔfa so yi nneɛma fi hɔ no bi ne: sɛ wode ngo a ɛyɛ den a wɔde frafra mu bɛka ho, ama ink no mu nsu a ɛyɛ den no atu mpɔn. Siesie squeegee no anim, ma ahoɔhare a wode tintim nhoma no nkɔ soro, na fa mprɛte a ɛwɔ cavity a ɛnyɛ den a wɔde tintim nhoma no si mprɛte a emu dɔ no so.
e) Nkratawa a wɔde kyerɛw nsɛm .
Squeegee ho nsɛm bi wɔ print no so. Akwan a wɔfa so yi nneɛma fi hɔ ne: fa ink a ɛho tew a ɛnyɛ ananafo nneɛma a wɔde afrafra wɔ tintim no mu di dwuma. Yɛ nsakrae wɔ ink no mu nsu a ɛyɛ den, ɛyɛ nwunu ne nea ɛbata ho no mu. Fa squeegee a ɛyɛ papa di dwuma, siesie anim a ɛda squeegee ne print mprɛte ntam no.
Oyang Design Engineers yɛɛ nhwehwɛmu na wɔyɛɛ mfiri no nhyehyɛe no yiye sɛnea ɔhaw ahorow a ɛtoatoa so wɔ tintim nhyehyɛe no mu te, na wɔyɛɛ Honor Sereis Els Rotog RaVure tintim afiri no fii adwene a ɛne sɛ wobesiesie ɛyaw nsɛntitiriw a ɛwɔ wɔn a wɔde di dwuma no ne nnwuma no mu no ho.
Adeyɛ no ma wotumi de ink no kɔ baabi foforo daa, wɔ densities ahorow pii mu, na wɔ ahoɔhare kɛse mu, na ɛma ɛfata sɛ wɔde di dwuma a ɛhwehwɛ sɛ wɔde mfonini a ɛkorɔn, te sɛ tintim, nneɛma a wɔde kyekyere nneɛma, nkyerɛwde a wɔde kyerɛw nneɛma, ahobammɔ tintim, ne tintim a wɔde siesie nneɛma.
Sɛnea nhoma tintim cylinders a wɔde di dwuma no yɛ nea ɛtra hɔ kyɛ no ma Gravure tintim yɛ adeyɛ a eye a wɔde tintim nhoma a ɛyɛ papa wɔ mmirikatu a ɛware yiye anaasɛ ɛkɔ so daa so, na ɛde ɛka a wɔbɔ wɔ nneɛma afoforo ho ma sen nneɛma afoforo.
Ade foforo a ɛyɛ hu, a wɔde wɔn adwene asi so sɛ ɛbɛma wɔanya mfaso ama wɔn a wɔkra nneɛma no, nneɛma a efi Oyang Rotogravure Press Making mu, wɔ mfe abiɛsa pɛ mu no Oyang Rotogravure Press akyekye din pa ne din pa wɔ China, na aman ne amantam pii wɔ wiase nyinaa a adetɔfo adwumayɛbea ahorow wɔ yɛn Honor Series Electronic Shaft Rotogravure printing presses no, na wɔyɛ adwuma wɔ ɔkwan a ɛyɛ den yiye so, na wɔyɛ adwuma wɔ ɔkwan a ɛyɛ den so.
Oyang a ɔyɛ ade foforo a ɛyɛ nwonwa saa ara no de gyinapɛn foforo asi hɔ wɔ wɛb-film gravure tintim mu wɔ mmeae a ɛyɛ den te sɛ nea wɔde kyekyere nneɛma a ɛyɛ mmerɛw a ne Honor® series Rotogravure presses . Nkyerɛwee a ɛda nsow a wonya fi nneɛma a wɔde kyekyere nneɛma a ɛyɛ fɛ a ɛyɛ mmerɛw a wɔde ayɛ nneɛma a ɛyɛ mmerɛw mu no de nsɛnnennen foforo ba gravure tintim nhyehyɛe no so, nanso mfiridwuma mu nkɔso, sɛnea ɛyɛ mmerɛw sɛ wɔde bedi dwuma, bere a wɔde dannan nneɛma ntɛmntɛm ne Oyang mfiri a wɔsɛe no a ɛso tew no ma ɛyɛ nea ɛsen biara a adetɔfo a wɔwɔ China ne wiase nyinaa paw no mu biako.