Umuyoboro w'amazi ni igice cy'ingenzi mu gupfunyika imiti buri munsi, ikoreshwa cyane mu bicuruzwa nko mu mavuta yo mu ntoki, ibikoresho byo gusukura, ibikoresho byo kwisiga izuba n'ibindi. Imitako gakondo yo gusiga hejuru y'imiyoboro ahanini ishingiye ku binyabutabire bibiri bya polyurethane. Nubwo imitako ya polyurethane ibiri ifite imikorere myiza mu bijyanye no koroshya gusiga no gucapa (bronzing), imikorere yayo igera kuri 80%. Ingano ya VOCs yavuzwe haruguru ituma ikoreshwa nabi, cyane cyane mu myaka ya vuba aha, hamwe no gukomeza gushimangira ubumenyi ku kurengera ibidukikije ku gihugu n'abaturage mu gihugu cyacu, gukora no gukoresha imitako ya VOCs nyinshi bigenzurwa cyane. Byumvikanye ko imitako ya VOCs itangiza ibidukikije ikoreshwa.gusimbuza irangi risanzwe rifite VOC nyinshi.
Kugeza ubu, irangi rizwi rirengera ibidukikije ririmo: 1. Irangi rishingiye ku mazi rifite ingano ya VOC iri munsi ya 10%; 2. Irangi rikomeye cyangwa rikomeye rifite ingano irenga 85%. Kubera ko ibikoresho by'ibanze by'umuyoboro w'amazi ari ibikoresho bya polyethylene (PE), imiterere y'ubuso buke n'ubugari buke bw'ubu bwoko bw'ibikoresho bituma irangi rishingiye ku mazi ritagira ingero zikura mu irangi ry'umuyoboro. Irangi rikomeye rivura UV (ravura UV) ryabaye amahitamo ya mbere ku irangi rirengera ibidukikije ku miyoboro muri iki cyiciro kubera ubushobozi bwaryo bwo hejuru, kuzigama ingufu, no kurinda ibidukikije. Ariko, bitewe n'imiterere y'irangi rivura UV, iyo abantu bakoresheje irangi rivura UV mu gukora ibikoresho byo gupfunyika bya buri munsi ku miyoboro, muri rusange bazahura n'ibibazo nko kudasaza neza kw'irangi, gucika umuhondo, gucika kw'irangi, kudasaza neza, gucapa bigoranye (bronzing), impumuro mbi nyuma yo gusiga irangi, nibindi.
Iyi nkuru izahera ku mahame shingiro y’imyambaro ikingira imirasire y’izuba, hamwe n’ikoreshwa ryayo nyaryo, kandi iganire ku bibazo by’ingenzi byavuzwe haruguru mu gihe cyo gusiga no gushushanya ibikoresho byo gupfunyika bikoreshwa mu miti ya buri munsi. Hashingiwe ku kunoza uburyo bwo gupfunyika, nk’uko bivugwa n’uruganda rukora ibikoresho byo gupfunyika rutanga ibisubizo byihariye kuri ibi bibazo.
Intangiriro yo gusiga irangi rya UV Curing
Gufotora ni ikoranabuhanga rishya "ry’icyatsi" riri gutera imbere vuba. Kuva mu myaka ya 1970, ikoranabuhanga ryo gufotora ryakoreshejwe cyane mu gupfuka, wino, ibikoresho bihuza ibyuma n’ubuvuzi. Muri byo, ikoranabuhanga ryo gufotora urumuri rwa ultraviolet (UV curing) ni ryo koranabuhanga rikoreshwa cyane mu gupfuka urumuri. Gupfuka UV bigizwe ahanini na fotoinitiators, resins na monomers zitarimo amazi, inyongeramusaruro zo kugenzura ubuso n’amabara n’ibirungo bikenewe. Mu rwego rwo gushushanya ubuso bw’ibikoresho bya buri munsi byo gupfuka imiti, ikoranabuhanga ryo gufotora UV rikoreshwa cyane mu gutera imiti, gucapa no mu bindi bice. Mu gupfuka ibikoresho bya buri munsi byo gupfuka imiti, gupfuka UV birangwa no gupfuka vuba, gukayangana cyane, kudasimbuka neza, no kugira ibintu bikomeye. Nk’ibikoresho byo gupfuka bishya kandi birengera ibidukikije, mu myaka ya vuba aha abantu benshi bitabira.
Ariko, kimwe n'ibindi bikoresho byose, irangi rishobora kuvurwa n'imirasire y'izuba naryo rifite ibibazo nko gucika umuhondo, gucikagurika, no kudashira neza mu gihe cyo kurikoresha. Iyi nkuru izibanda ku bibazo bitandukanye bikunze kugaragara ku irangi rikoreshwa ku miyoboro y'amazi. , uhereye ku mpamvu z'ibibazo, shyira imbere uburyo bwo gukemura ibi bibazo kuva ku gishushanyo mbonera cy'irangi kugeza ku buryo bwo kubaka irangi.
Ibibazo by'ingenzi n'ibisubizo iyo irangi rikoresha imirasire ya UV rishyirwa ku bikoresho bya buri munsi byo gupfunyikaho imiyoboro y'imiti
一. Impamvu n'ibisubizo by'umuhondo
Impamvu nyamukuru ituma irangi rya UV-cured ni uko irangi rigizwe n’imiterere ya molekile ishobora kwinjiza urumuri rwa ultraviolet rw’uburebure runaka. Nyuma yo kwinjiza urumuri rwa ultraviolet rw’uburebure runaka, ibi bintu bitanga impinduka mu rwego rw’ingufu ndetse bigatera ogisijeni y’ururangi. Iyo urugero rwa ogisijeni rutari hejuru, ruzahinduka umuhondo mu buryo buzwi nka "umuhondo".
(Ifoto y'ibumoso - ikintu cy'umuhondo, ifoto y'iburyo - ibisanzwe)
Ibice by'ingenzi biri mu irangi rya UV rishobora gukurura urumuri rwa ultraviolet ni:
1. Ibisigazwa bya Photoinitiator (iki ni cyo kintu cy'ingenzi gitera umuhondo)
2. Imiterere ya molekile irimo imikorere ya UV (iki gice cy'imvange ya UV ahanini ni ikintu kirimo imiterere ya benzene ring muri resin ya UV cyangwa monomer)
3. Ibisigazwa by'ibisigazwa bitaravurwa kandi bitarangirika, hamwe n'ibindi bintu byoroshye gukaraba (nk'amatsinda ya amine, nibindi)
Impamvu n'ibisubizo by'ipfundikizo ry'imvange
Impamvu nyamukuru zituma igipfundikizo kigorama kandi kigacika: 1. Gufatana kw'igipfundikizo n'igice cy'ubutaka si byiza; 2. Uburebure bw'igipfundikizo bugabanuka nyuma yo gucika. Abantu benshi bavuga ko gukomera kw'igipfundikizo atari byiza.
Ibisubizo byo gupfuka irangi:
1. Guhera ku gishushanyo mbonera cy'imvange, tanga irangi rifite uburyo bwo gufatana neza no gukomera;
2. Mu kugenzura inzira yo gusiga, uburyo bwihariye ni ubu: 1. Gutunganya mbere y’aho substrate ikorera, nko gucana umuriro, korona n’ubundi buryo bwo kuvura kuri substrate cyangwa gutunganya mbere y’aho ikoreshwa mu gutunganya mbere, kugira ngo hongerwe polarity y’ubuso bw’aho substrate ikorera no kunoza ubwiza bw’aho substrate ikorera. 2. Mu gihe cyo gusiga, ubugari bw’aho ikoreshwa bugomba kugabanuka neza, kandi ubushyuhe bwo gusiga n’ingufu zo gusiga UV bigomba kongerwa.
Impamvu n'ibisubizo by'impumuro mbi
Umuyoboro upfundikiye uzumva impumuro mbi cyane iyo ibicuruzwa bishyizwemo, cyane cyane iyo ibicuruzwa bifunze mu gikapu cyo gupakira igihe kirekire, iyo igikapu cyo gupakira gifunguwe. Impamvu nyamukuru y’iyi mpumuro mbi ni uko ibintu bito bya molekile bishyuha cyane bisigaye mu irangi bigenda byimuka bikagera ku buso bw’igikapu uko igihe kigenda gihita, bigahinduka mu kirere, kandi bigakomeza kwirundanya mu kirere gifunze. Inkomoko y’ibi bintu bito bya molekile bishyuha cyane cyane ni ibisigazwa by’ibinyabutabire (ibinyabutabire bitahinduka burundu), ibisigazwa by’ibinyabutabire bito (impinduka zitarangiye), n’ibinyabutabire bito bya molekile bikorwa n’ibinyabutabire bya fotoinitiators n’ibicikamo (bizwi cyane nka ibisigazwa by’ibinyabutabire).
Uburyo bwo gukemura impumuro nyuma yo gukira:
1. Guhera ku gishushanyo mbonera cy’ikoreshwa ry’ibinyabutabire, koresha sisitemu ikora cyane yo gutangiza kugira ngo ugabanye ingano y’ibinyabutabire bikoreshwa; wongere ingano y’ibinyabutabire bifite imikorere myinshi muri sisitemu, kandi ukoreshe ibice bikwiye byo gushyiramo pulasitiki kugira ngo ugabanye ingano y’ibinyabutabire bito, cyane cyane ibinyabutabire bito bifite imikorere imwe. Ikoreshwa rya monomer.
2. Mu rwego rwo kugenzura uburyo bwo gusiga, kugabanya neza ubunini bw'igitambaro, kongera ubushyuhe bwo gusiga, n'ingufu zikoreshwa mu gusiga UV bishobora kugabanya impumuro mbi.
Impamvu n'ibisubizo ku bijyanye no kudakora neza kw'imiyoboro ya matte
Impamvu ituma irangi ritameze neza ni uko ingaruka z'irangi ritameze neza ziterwa ahanini no kugaragara neza kw'ubuso bw'irangi ku rumuri, kandi kugaragara neza kw'ubuso bw'irangi biterwa ahanini n'ubugari bw'ubuso bw'irangi n'ubugari bw'irangi. Kudahuza kw'urwego ubwarwo biravuka. Iyo ubuso bugoye busutswe, bizana ukubiri cyane, bigatuma irangi rishobora gushwara kurusha ubuso bufite urumuri rwinshi. Byongeye kandi, ibintu by'ifu biri mu irangi ritameze neza bizasenya ubuziranenge bw'ubuso bw'irangi ku rugero runaka, ari na imwe mu mpamvu ituma irangi ritameze neza rishobora gushwara kurusha irangi ribengerana.
(Umuyoboro wa matte woroshye gukurura no guhinduka umweru iyo ukoze ku gitambaro)
Ibisubizo ku gushwanyagurika:
1. Guhera ku gishushanyo mbonera cy’ikwirakwizwa, gukoresha igice cya resin ya matte kugira ngo usimbuze ibice by’ifu biri mu irangi bishobora kugabanya ubukana bw’ubuso bw’irangi no kongera ikigereranyo cy’ibara ry’irangi mu rwego rwo kwemeza ingano ya matte y’irangi, kandi amaherezo bikagera ku kunoza uburyo ubuso bw’irangi burwanya gushwanyagurika.
2. Guhera ku kugenzura uburyo bwo gusiga, kugabanya neza ubunini bw'igitambaro, kongera ubushyuhe bwo gusiga, no gukoresha ingufu za UV bishobora kongera ubushobozi bwo gukaraba ubuso bwa matte.
Impamvu n'ibisubizo by'imikorere mibi ya hot stamp
Impamvu nyamukuru zituma habaho imikorere mibi mu gusiga irangi rishyushye ni izi zikurikira: 1. Irangi ritajyanye n'impapuro zishyushye, bigatuma irangi rishyushye ritameze neza cyangwa ritafata neza; Icya kabiri, uburyo bwo kugenzura ibikorwa mu gihe cyo gusiga irangi rishyushye ntibuhamye.
Ibisubizo ku gushyushya nabi:
1. Ukurikije uburyo bwo gukora, Weixi Chemical yinjiza mu buryo bw'ubuhanga ibintu bifite ubushobozi bwo kwitabwaho n'ubushyuhe muri iyo mvange. Ibintu nk'ibi bifite ubukana bwinshi n'ubushyuhe buke ku bushyuhe bw'icyumba, ariko iyo ubushyuhe bugeze cyangwa burenze ubushyuhe bwabwo bwo guhindura intera, Ubu bwoko bw'ibikoresho bunyura mu mpinduka y'icyiciro hamwe no kugabanuka gukabije k'ubukana hamwe no kwiyongera k'ubukana bw'ubuso. Mu gihe cyo gusiga intera ishyushye, kubera ko ubushyuhe bw'igice gishyushye cyo gusiga intera buzamuka cyane hejuru y'ubushyuhe bw'icyiciro, ubukana bw'igice gishyushye cyo gusiga intera buragabanuka cyane kandi ubukana bw'ubuso burushaho kwiyongera, bityo bikongera uburyo impapuro zishyushye zo gusiga intera n'igitambaro zikomeza gufatana no gukomera kw'igitambaro gishyushye. Iyo inzira yo gusiga intera irangiye, ubushyuhe bugabanuka munsi y'ubushyuhe bw'icyiciro kandi ubukana bw'igitambaro bugasubirana.
2. Ukurikije uburyo bwo kugenzura ibikorwa, shyira imbere guhitamo impapuro zikoresha icyuma gishyushya n'uburyo bwo gutunganya ibintu bihuye n'igitambaro, kandi wongere ubushyuhe n'imbaraga zo gukanda mu gihe cyo gukoresha icyuma gishyushya, ibyo bikaba byiza mu kunoza ubwiza n'uburyo gifata icyuma gishyushya.
Varnish yo mu bwoko bwa UV-type PE izajya isimbuza buhoro buhoro irangi rya polyurethane rifite ibice bibiri. Ni umusaruro w’umutekano w’igihugu, umusaruro usukuye, kugabanya imyuka ihumanya ikirere, no kurengera ibidukikije. Ibibazo bimwe na bimwe bivuka mu gihe cyo kubaka varnish yo mu bwoko bwa UV bishobora gukemurwa na varnish. Guhindura formula y’uruganda, guhindura inzira y’uruganda rukora ibikoresho n’uruganda rukora imiyoboro birakemurwa hamwe.
Shanghai Rainbow Industrial Co., Ltd.itanga igisubizo kimwe cyo gupakira ibintu byo kwisiga. Niba ukunda ibicuruzwa byacu, ushobora kutwandikira,
Urubuga:www.rainbow-pkg.com
Email: Bobby@rainbow-pkg.com
WhatsApp: +008615921375189
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Igihe cyo kohereza: Mutarama-06-2023