Tumi a ɛyɛ nwonwa a rotogravure tintim tumi yɛ mfonini a emu da hɔ, ɛdɔɔso-, na ɛyɛ nea ɛkɔ so daa no ma ɛda nsow wɔ akansi a ɛfa nneɛma a wɔde kyekyere nneɛma ne nhoma tintim ho no mu. Nanso, surface treatment-adeɛ a ɛho hia nanso wɔtaa bu ani gu so ansa na{3}}press anammɔn-ho hia na ama wɔanya saa aba a mfomsoɔ biara nni mu yi.
Surface Treatment no Dwumadi Titiriw wɔ Gravure Printing mu
Wɔfrɛ ɔkwan a wɔfa so de ink fi nkwammoaa nketenkete a wɔakyerɛw wɔ cylinder mu kɔ biribi a wɔde hyɛ ase so no sɛ rotogravure printing, anaa gravure. Ahoɔden a ɛwɔ nneɛma a wɔretintim no ani no nya nkɛntɛnso kɛse wɔ sɛnea saa nneɛma a wɔde kɔ baabi foforo yi di yiye no so. Nneɛma a wɔde kyekyere nneɛma a ɛyɛ mmerɛw dodow no ara, a polyethylene (PE), polypropylene (OPP, BOPP), ne polyester (PET) ka ho, yɛ nea ɛnyɛ nsu na ɛnyɛ ngo esiane ahoɔden a ɛba fam a ɛwɔ soro nti. Eyi de nsɛm pii ba wɔ nneɛma pa ho, a nea ɛka ho ne ink a ɛnyɛ nsu ne nea ɛbata ho yiye.
Sɛ wɔansiesie nneɛma a ɛwɔ soro no yiye a, ɛma mfiri a wɔde tintim nhoma no tumi pow nneɛma a ɛkɔ soro, ɛkyɛ wɔ ne yɛ mu, na ɛma nneɛma no nkwa nna so tew. Aduru a etu mpɔn a wɔde yɛ ɔfasu a wɔde tintim gravure no sesa substrate no ani wɔ molecule level, ɛma n’ahoɔden kɔ soro na ɛma ɛyɛ mmerɛw sɛ wɔde ink, varnish, ne adhesives bɛka ho pɛpɛɛpɛ na wɔde bere tenten{1}} abɔ mu.
Gravure Printing Nsɛm a Ɛtaa Ba a Ɛfa Asase So Ahoɔden Ho
Coating a entumi nyɛ adwuma yiye ne ink a ɛnyɛ papa
Ink a ɛyɛ mmerɛw sɛ ɛbɛtwetwe, ɛpaapae, anaasɛ ɛpaapae ne sɛnkyerɛnne a ɛda adi kɛse a ɛkyerɛ sɛ wɔansiesie ne soro yiye. Wɔ afɛfɛde a ɛsɛe akyi no, saa ink a ɛbata ho a entumi nkɔ gravure tintim mu yi betumi de akwanside ahorow a ɛyɛ adwuma a ɛwɔ nnuan anaa nnuru a wɔde kyekyere nneɛma mu no ato asiane mu, na ɛde ɔhaw ahorow aba wɔ nneɛma no ahobammɔ ne asɛyɛde a ɛfa nneɛma a wɔde yɛ nneɛma ho no ho.
Mmeae a Ɛnyɛ Nsu ne Ink Repellency
Sɛ́ anka ink bɛda fam no, nea efi ahoɔden a ɛba fam a ɛwɔ soro no mu ba. Titiriw wɔ mmeae a kɔla ahorow a ɛyɛ den wɔ no, eyi da adi sɛ pinholing, retraction, anaasɛ print density a ɛnkɔ so pɛpɛɛpɛ. Ɛsɛe gravure din a ɛwɔ sɛ ɛyɛ nhoma a wɔatintim a ɛkorɔn-a ɛyɛ papa.
Ɔhaw ahorow a ɛfa Efĩ ne Nneɛma a Ɛkɔ So Daa Ho
Efĩ a aniwa nhu a efi nea wɔyɛ ne nea wɔde di dwuma mu, te sɛ nneɛma a wɔde yi fi mu, ngo, anaa mfutuma betumi aba nneɛma a wɔde hyɛ ase no mu. Eyinom siw ayaresa a etu mpɔn no kwan. Bio nso, wɔ longgravure tintim akwan horow mu no, ayaresa dodow a enhyia wɔ nhoma mmobɔwee mu anaa akuw ntam no ma nsonsonoe a ɛyɛ abasamtu ba tintim su mu.
Nsɛm a ɛfa Static Electricity ne Web Processing ho
Polymer films pii wɔ su a ɛma ɛyɛ static charge, a ɛtwetwe mfutuma, ɛde ɔhaw ahorow ba wɛb dwumadie te sɛ misfeeds, na mpo ɛtumi yɛ asiane wɔ solvent-based gravure settings mu. Ɛwom sɛ ɛyɛ anyinam ahoɔden ho haw titiriw de, nanso mpɛn pii no, akwan a wɔfa so sa yare wɔ asase ani no fa ho.
Cutting-Edge Surface Treatment Options ma Nnɛyi Gravure Printing
Nnwumakuw no de mfiridwuma a wɔasɔ ahwɛ na ɛrenya nkɔso a ɛma substrate activation a ɛyɛ den na wotumi de ho to so di dwuma de di nsɛm a ɛtaa ba yi ho dwuma wɔ gravure akwan horow mu.
Corona ne Plasma a Wɔsa: Nnwumayɛbea Gyinapɛn
Ɔkwan a agye din sen biara a wɔfa so ma ink a ɛbata ho kɛse wɔ gravure tintim mu no da so ara yɛ corona discharge treatment. Ɛma substrate no nya anyinam ahoɔden a ɛkɔ soro-voltage, high-frequency bere a ɛde fa roller a ɛwɔ fam so. Eyi ma ade no ahoɔden kɔ soro na ɛhyɛ nkitahodi ho nkuran denam mframa a atwa ho ahyia no a ɛma ɛyɛ ion na ɛma plasma a ɛma ade no ani yɛ oxidize no so.
Mfasoɔ no bi ne in-line tumi, ahotosoɔ a wɔada no adi, ne tumi a ɛkorɔn ma polyolefins dodoɔ no ara.
Fa no sɛ ayaresa no dodow betumi asɛe bere a bere kɔ so (shelf-nkwa) na ebia ɛho behia sɛ wɔhwɛ so yiye na wɔasiw ayaresa a ɛboro so ano, a ebetumi asɛe sini ahorow bi.
Esiane sɛ ɔhyew ntumi nkɔ wim nti, wim plasma a wɔde sa yare no yɛ ano aduru a ɛyɛ nwonwa kɛse a ɛma nsakrae a ɛyɛ pɛpɛɛpɛ, ɛkɔ so daa, na ahoɔden wom kɛse wɔ soro. Ɛreyɛ agye din kɛse ama substrates a ɛyɛ mmerɛw ne applications a ɛyɛ den.
Ogya a Wɔde Sa Nneɛma a Wɔde Yɛ Nneɛma Pɔtee
Ogya ayaresa, a wɔde di dwuma kɛse wɔ nkuku a ɛyɛ den, abiɛsa{0}}afã anaa sini pɔtee bi so no, de mframa a ɛtumi hyew ogyaframa a wɔahyɛ so na ɛma ɔfasuo no yɛ oxidize. Ɛwom sɛ wɔntaa mfa nyɛ nneɛma a ɛyɛ tratraa wɔ wɛb gravure mu de, nanso ne nyinaa akyi no, ɛyɛ adwinnade a mfaso wɔ so ma nneɛma bi a ɛfa gravure tintim nneɛma ho.
Coating Adhesion Promoters ne Nnuru Primers
Ɛtɔ da bi a wɔde nsuo primer anaa adhesion booster ka ho ansa na wɔatintim, titire wɔ substrates a ahoɔden sua koraa -ahyɛ mu. Wɔyɛ mfinimfini fã a ɛyɛ mmuae esiane eyi nti. Sɛ wɔde toto ayaresa a ɛyɛ dry te sɛ corona ho a, saa kwan yi yɛ nea ɛyɛ den, ne bo yɛ den, na ebetumi ama nneɛma a ɛyɛ hyew (VOCs) afi mu aba, ɛmfa ho sɛ etu mpɔn no.
Ɔkwan a Wɔfa so Yɛ no Nkɔanim: Nhwehwɛmu ne Nneɛma a Ɛyɛ Paara
Mfiridwuma ho nimdeɛ a wɔde bedi dwuma no yɛ ɔko no fã pɛ. Nneɛma a wɔyɛ no sohwɛ a emu yɛ den ho hia na ama wɔanya nea efi mu ba a ɛkɔ so daa.
Dyne Sɔhwɛ: Wɔ ayaresa akyi pɛɛ ne ansa na wɔatintim no, ɛsɛ sɛ wɔde dyne sɔhwɛ kyerɛwdua anaa ano aduru hwɛ ahoɔden a ɛwɔ soro no daa.
In-line Monitoring: Sɛnea ɛbɛyɛ a wɔbɛma ayaresa a ɛyɛ pɛ wɔ wɛb no trɛw ne ne tenten nyinaa mu no, nnɛyi nhyehyɛe ahorow de bere ankasa -ahwɛfo ka ho.
Nneɛma a Wɔde Di Dwuma: Sɛnea ɛbɛyɛ a wɔbɛkwati sɛ wɔbɛsan de efĩ agu nneɛma a wɔayɛ no adwuma so no, ɛho hia sɛ wɔkyekyere no yiye, wɔkora so, na ɛho tew wɔ ayaresa ne tintimbea no ntam.
Sustainability ne Pɛpɛɛpɛyɛ wɔ Gravure Surface Treatment’s Daakye
Nneɛma a wɔhwehwɛ sɛ wɔyɛ wɔ asase ani aduruyɛ ho no sesa bere a gravure tintim adwuma no sesa no. Nhyehyɛe ahorow a ahoɔden a wɔde di dwuma yiye, ozone a wɔyɛ no sua, na ɛne nneɛma a ɛyɛ nnansa yi ara, a ɛtra hɔ daa-te sɛ mono-material films ne bio-based plastics-hyia no reyɛ nea agye din kɛse. Bio nso, ɛho behia sɛ wɔde ayaresa mfiridwuma a ɛyɛ pɛpɛɛpɛ, ɛyɛ kɛse, na ɛkɔ so daa mpo, te sɛ awo ntoatoaso a edi hɔ-awo ntoatoaso a wɔde plasma nhyehyɛe di dwuma esiane ɔpɛ a wɔde tintim nhoma a ɛkorɔn-a ɛkorɔn- ne ink a ɛyɛ adwuma ne nea ɛma nsu fa mu a wɔde bɛka abom nti.
Awiei: Anamɔn a Edi Kan a Ɛkɔ Gravure Excellence Ho
Sɛ yɛde rewie a, ɛsɛ sɛ ahyehyɛde biara a ɛde rotogravure tintim di dwuma no di nsɛm a ɛfa sɛnea wɔyɛ nneɛma a ɛwɔ soro no ho dwuma sɛ ɔkwan a ɛho hia sen sɛ ɛbɛyɛ mfiridwuma mu de ara kwa. Converters betumi de gravure kwan no adi dwuma koraa denam sika a wɔde bɛto soro ayaresa ano aduru a ɛfata mu na wɔate ɔhaw ahorow a ɛtaa ba a ɛne ink a ɛnyɛ papa a ɛbata ho no ase. Ɛnyɛ sɛ eyi ma awerɛhyem sɛ nea ebefi mu aba a ɛyɛ fɛ nko na mmom ɛma nneɛma a wɔde kyekyere nneɛma a ɛyɛ den, ɛtra hɔ kyɛ-a ɛkura ahyɛnsode no mudi mu kura mu na ɛdi adwumayɛ ho ahwehwɛde a ɛyɛ den ho dwuma wɔ adwumayɛ a ɛtwa menewa mu nso. Akyinnye biara nni ho sɛ ɔfasu a wɔasiesie no yiye ne anammɔn a edi kan a ɛkɔ gravure tintim su a edi mũ mu.