Kushandiswa Kwemvura-Yakavakirwa Kuchengetedzwa Kwenzvimbo Ink Muchikafu Packaging Featured Image

Kushandiswa Kwemvura-Yakavakirwa Kuchengetedzwa Kwemamiriro Ekunze Ink Muchikafu Packaging

Tsanangudzo Pfupi:

Serudzi rutsva rwekurongedza uye kudhinda zvinhu, mukana mukuru weinki yakavakirwa pamvura ndeyekuti haina kunyungudika kweorganic solvents.Kushandiswa kwaro kunoderedza huwandu hwemagetsi emagetsi emagetsi (VOCs), hakuvadze hutano hwevagadziri veinki uye vanodhinda, uye inovandudza kunaka kwenzvimbo.Nokudaro, inogona kunzi inki yezvakatipoteredza inoshamwaridzana.Hunhu hukuru hweinki yakavakirwa mumvura haina kusvibisa nharaunda, haina kukanganisa pahutano hwevanhu, haina kupisa, uye kuchengetedzwa kwakanaka.Haikwanise chete kuderedza chepfu yakasara pamusoro pezvigadzirwa zvakadhindwa, kuita kuti zvive nyore kuchenesa michina yekudhinda, asi zvakare kuderedza njodzi yemoto inokonzerwa nemagetsi emagetsi uye zvinonyungudutsa zvinopisa.Mukuwedzera kune kuchengetedzwa kwezvakatipoteredza, maitiro ekudhinda emvura-based inki zvakare akanaka.Mvura-based inki ine kushanda kwakadzikama, haiparadzi ndiro, kushanda nyore, mutengo wakaderera, kunamatira kwakanaka mushure mekudhinda, kusimba kwemvura yakasimba uye kuoma nokukurumidza.Mvura yakavakirwa ingi haingoshandiswi mu flexographic printing uye screen printing ine hukuru hwebudiriro.

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Kuvandudza Tarisiro uye Tsika yeInk Inowanikwa Mvura

Ingi yemvura inonzi water-based ink kwenguva pfupi.Iyo flexographic mvura-based inki inonziwo inki yemvura.Iyo inonyanya kugadzirwa nemvura-inonyungudika resin, organic pigment, solvent uye zvine chekuita nekuwedzera kuburikidza nekukuya musanganiswa.Aqueous resin imhando nyowani yeresin system inoshandisa mvura pachinzvimbo cheorganic solvent sedhisheni yekuparadzira.Inosanganiswa nemvura kuti iite mhinduro.Mushure mokunge mvura inoputika, resin film material inoumbwa.Mvura-based resin haisi yemvura-based resin pachayo asi firimu zvinhu zvinowanikwa mushure mekuputika kwemvura.Waterborne polyurethane, semumiriri, inogona kushandiswa zvakanyanya mukuvhara, zvinonamira, machira ejasi uye maajenti ekupedzisa, matehwe ekupedzisa maajenti, mapepa epamusoro ekurapa maajenti uye fiber pamusoro pekurapa vamiririri.Mvura yakavakirwa ingi inonyanya kukodzera chikafu, chinwiwa, mushonga, fodya, waini, matoyi evana uye zvimwe zvekurongedza uye kudhinda zvigadzirwa zvine hutsanana hwakasimba zvinodiwa, kutsiva solvent yakavakirwa zvigadzirwa munzvimbo dzakasiyana siyana.Seimwe yezvinhu zvishanu zvekudhinda, mvura-based inki inoita basa rinokosha mukudhinda uye kudhindwa kwemhando.Iyo inonzwisisika kugoverwa kweinki chinhu chakakosha chinongedzo chekuvimbisa kunaka kwezvigadzirwa zvakadhindwa.Mvura yakavakirwa inki yave ichitora chikamu chikuru mu flexographic kudhinda nekuda kwezvakanaka zvayo zvekuchengetedza kwezvakatipoteredza uye hupfumi.
Kusimukira kwakasimba kweindasitiri yegreen packaging printing kuchawedzera makwikwi mumusika weinki weoffset.Iye zvino vagadziri veinki vakatumira chiratidzo chekuti mutengo weinki mbishi zvinhu wakakwira zvakanyanya, izvo zvichawedzera kuwedzera mutengo wekugadzira uye kugadzirisa nyore.Izvi zvinonyanya kukonzerwa nekushomeka kwepasi rose kweakatevedzana emakemikari ejenti, ayo ari akakosha zvinhu mukugadzirwa kweinki.Kusvika ikozvino, kukwira kwemutengo wemafuta asina kuchena uye petrochemical derivatives ndicho chikonzero chikuru chekukwira kwemitengo yeinki.Zvisinei, kunyange kana mutengo wemafuta uchidonha, nokuti indasitiri yeinki inorohwa nekushayikwa kwemakemikari ezvigadzirwa, kunyanya zvinhu zvakadai se nitrocellulose, acrylic acid, acetic acid uye titanium dioxide, mutengo weinki ucharamba uchikwira.Parizvino, nyika dzakabudirira uye matunhu ari kuedza kugadzira uye kushandisa ingi kuti zvishoma nezvishoma kutsiva solvent based inki.Packaging printing nemvura-based inki kudhinda sechinhu chikuru chekusimudzira chakaumba maitiro munyika.

Mamiriro Ekuita EIngi Inobva Mvura: Musiyano Uri Pakati PeAgent NeIngi YeOiri

Hunhu hwepolyurethane yeinki inonyanya kushandisa aliphatic polyester uye aliphatic isocyanate seyakanyanya kugadzira zvinhu mugadziriro yekugadzirira.Kana ichienzaniswa neinonhuhwirira polyurethane, iyo yekutanga ine yakanyanya kunaka kugadzikana uye firimu mushure mekuumbwa kwefirimu rine nani kutsvuka kweyero.Kune mapoka epolar akadai se carbamate, urethane, ester bond uye ether bond mu polyurethane molecular chain segment ye inki, iyo inoumba ma hydrogen bond nemapoka epolar pamusoro peakasiyana siyana polar substrates senge pet uye PA, nekudaro kugadzira mubatanidzwa ne. imwe simba rekubatanidza.Mushure mekunge iyo yakagadziridzwa polyurethane resin yagadzirwa kuita inki, inogona kudhindwa pamusoro peiyo polar plastiki substrate ine yakanaka adhesion fastness.Polyurethane resin yeinki inowanzogadzirirwa kubva kupolyester kana polyether polyol, ester ring diisocyanate uye diamine chain extender.Nekuda kwekuiswa kweurea bond mu polyurethane resin, iyo polyurethane urea resin (PUU) inoumbwa, ine yakanaka yekunyorova uye kuparadzira zvinhu kune pigment.
Polyurethane resin yeinki ine kugarisana kwakanaka nealdehyde ketone resin, chloroacetic resin, nezvimwewo inogona kunyatsowedzerwa muchimiro chemaitiro zvinoenderana nemamiriro chaiwo ekuvandudza kushanda kwakazara kweinki.Iyo polyurethane resin yeinki inogadzirirwa nekuunza urea boka mune yechinyakare polyurethane molecular segment, iyo inovandudza zvakanyanya kusimba kwekubatana uye firimu kugadzira pfuma yeresin pachayo.Traditional polyurethane resin ine huwandu hwakasiyana hwekusagadzikana ne organic solvents.Zvisinei, mukugadzira inki, kuitira kugadzirisa fluidity uye viscosity yeinki, zvakakosha kuwedzera doro organic solvents, iyo inoderedza zvikuru kugadzikana kweiyo resin system uye kukonzera turbidity, flocculent precipitation uye zvimwe zviitiko zvechinyakare. polyurethane resin.Muchikamu chemolecular cheni ye polyurethane resin yekudhinda inki, nekuda kwekuvapo kweboka re urea, iyo polyurethane resin uye doro zvinogona kunyungudika.Zvisinei, zvinofanira kucherechedzwa kuti mushonga wedoro uchiri pseudo solvent.Mumamiriro ezvinhu emicroscopic, doro rekunyungudutsa rinongovhara polyurethane resin molecule, panzvimbo yekupinza molecular polarity mumorekuru semunyungudika chaiwo, kuitira kuti inki yakagadzirwa ne polyurethane resin ine mvura yakanaka.
Musiyano mukuru pakati pemvura-based inki uye mafuta-based inki ndiyo solvent.Ingi yemvura inoshandisa mvura (45% - 50%) sechinhu chinonyungudutsa, ine zvinyorwa zvishoma zveVOC uye zvishoma kusvibiswa kwezvakatipoteredza;Ingi ine mafuta inoshandisa organic solvents (toluene, xylene, industrial alcohol, etc.) sechinhu chinonyungudutsa.Mvura-based inki inoshandisa mvura uye mvura-soluble solvent sezvikamu zvikuru zvechigadziko chemavara chakanyungudutswa;Kune zvakare ingi yedhayi uye pigment inki mumvura-based inki, uye pH kazhinji haina kwayakarerekera;Oiri zvakare ine ingi yedhayi neingi yepigment, uye pH inowanzoita acidic.Mvura yakavakirwa inki uye mafuta-based inki haigoni kusanganiswa mumusoro wakadhindwa wakafanana.
Mumvura-based inki, mvura-based resin chinhu chinokosha chemvura-based inki.Iyo inki yekubatanidza zvinhu inokanganisa zvakananga kuita kwekunamatira, kukurumidza kuomesa, anti fouling kuita uye kupisa kupisa kweinki, uye zvakare inokanganisa gloss uye inki kutamisa kuita.Nokudaro, kusarudzwa kwemvura yakakodzera-based resin ndiyo kiyi yekugadzirira mvura-based inki.Inofanira kunge iine hukama hwakanaka nemacolorants, kukurumidza kunamatira mushure mekudhinda uye kuumbwa kwefirimu, kupfeka kuramba, kuramba, kumira zvakanaka kwekupisa, kuyambuka nyore uye kugadzira firimu.Anowanzo shandiswa emvura resin anosanganisira waterborne polyurethane resin, acrylic resin, polyvinyl doro uye epoxy resin.
Mvura yepolyurethane resin inoparadzirwa mumvura nekuunza mapoka e-hydrophilic mu polyurethane molecular chain.Waterborne polyurethane resin ine zvakanakira kushandisa nyore, kuita kwakagadzikana, kunamatira kwakasimba, kupenya kwakakwira uye kunaka kwekudzivirira kupisa.Inogona kuve yakakodzera kune dzakasiyana nzira dzekudhinda, kunyanya kudhinda skrini, mabhokisi epurasitiki ekurongedza uye mafirimu akaumbwa.