Discoloration panguva yekuomesa inki
Panguva yekudhinda, iyo ichangobva kudhindwa ingi ruvara rwakasvibira kana ichienzaniswa neakaomeswa ingi ruvara. Mushure menguva yakati, ruvara rweinki ruchareruka mushure mekunge dhinda raoma; Iri harisi dambudziko neinki inoshingirira kuderera kwechiedza kana kushanduka, asi zvakanyanya nekuda kwekushanduka kwemavara kunokonzerwa nekupinda uye oxidation yefirimu panguva yekuomesa. Ingi yekuyamura inonyanya kupinda nekuoma, uye inki layer yechigadzirwa ichangobva kudhindwa kubva kumuchina wekudhinda yakakora. Panguva ino, zvinotora nguva kuti firimu rekupinda uye oxidation riome isina chinhu.
Ingi pachayo haigoni kupikisa chiedza uye inopera
Ingi inopera uye kushanduka kwemavara hazvidzivisiki kana yakavhenekerwa nechiedza, uye ingi dzese dzinowana madhigirii akasiyana ekudzima nekushanduka kwemavara mushure mekuratidzwa kuchiedza. Ingi ine ruvara rwakajeka inodzima uye inochinja zvakanyanya mushure mekuratidzwa kuchiedza kwenguva refu. Yero, tsvuku tsvuku, uye girini zvinopera nekukurumidza, ukuwo cyan, bhuruu, uye dema zvinopera zvishoma nezvishoma. Mune basa rinoshanda, kana uchisanganisa inki, zviri nani kusarudza inki nekupikisa kwakanaka kwechiedza. Paunenge uchigadzirisa mavara akajeka, kutarisa kunofanira kubhadharwa kune chiedza chekudzivirira kweinki mushure mekuderedzwa. Kana uchisanganisa inki, kuwirirana kwechiedza chekudzivirira pakati pemavara akati wandei einki kunofanirawo kutariswa.
Kupesvedzera kwe acidity uye alkalinity yepepa pane inki inopera uye kushanduka
Kazhinji, bepa rine alkaline isina simba. Iyo yakakodzera pH kukosha kwepepa ndeye 7, iyo isina kwayakarerekera. Nekuda kwekudiwa kwekuwedzera makemikari akadai secaustic soda (NaOH), sulfides, uye chlorine gasi panguva yekugadzira mapepa, kurapwa kwakashata panguva yepulp uye kugadzira mapepa kunogona kuita kuti bepa rive acidic kana alkaline.
Iyo alkalinity yepepa inobva pakugadzira mapepa pachayo, uye mamwe anokonzerwa nemanamira ane alkaline zvinhu zvinoshandiswa mumashure ekusunga kugadzirwa. Kana furo alkali uye mamwe alkaline adhesives akashandiswa, alkaline zvinhu zvinopinda mumapepa faibha uye kuita kemikari nezvimedu inki pabepa pamusoro, zvichiita kuti kupera uye discolor. Pakusarudza zvigadzirwa uye zvinonamira, zvakakosha kuti utange waongorora chimiro chechimiro uye chemakemikari eadhesive, bepa, uye kukanganisa kwe acidity uye alkalinity painki, bepa, electrochemical aluminium foil, goridhe hupfu, sirivheri poda, uye lamination.
Tembiricha yakakonzera kushanduka kwemavara uye kuchinja kwemavara
Zvimwe zviratidzo zvekurongedza uye zvekushongedza zvakanamirwa kune magetsi ekubika mupunga, mabiki epressure, zvitofu zvemagetsi, uye midziyo yekubikira, uye ingi inokurumidza kupera uye kudzima pasi petembiricha yakanyanya. Kupisa kwekudzivirira kweinki kunotenderera 120 degrees Celsius. Michina yokudhinda yeoffset nemimwe michina yekuprinda haishande nekumhanya kwazvo panguva yekushanda, uye ingi neingi rollers, pamwe neingi neplate plate yekutsikirira zvinoburitsa kupisa nekuda kwekukweshera kukuru. Panguva ino, inki inoburitsawo kupisa.
Discoloration inokonzerwa nekutevedzana kwemavara kusina kunaka mukudhinda
Iwo anowanzo shandiswa kutevedzana kwemavara kune mana mavara monochrome muchina ndeaya: Y, M, C, BK. Iwo mana emavara emuchina ane reverse ruvara kutevedzana kwe: BK, C, M, Y, iyo inosarudza kuti ingi ipi yekutanga kudhindwa uyezve, izvo zvinogona kukanganisa kupera uye kushanduka kweingi inodhinda.
Pakuronga kutevedzana kweruvara rwekudhinda, mavara akareruka neingi ayo ari kuda kudzima nekushanduka ruvara anofanira kutanga adhindwa, uye mavara matema anofanira kudhindwa pave paya kudzivirira kupera uye kushanduka.
Discoloration uye kushanduka kwemavara kunokonzerwa nekushandiswa zvisina kunaka kwemafuta akaoma
Huwandu hwemafuta matsvuku ekuomesa nemafuta machena anoomeswa akawedzerwa kuingi haafanire kudarika 5% yehuwandu hweinki, inenge 3%. Kuomesa oiri kune yakasimba catalytic mhedzisiro muinki layer uye inogadzira kupisa. Kana huwandu hwekuomeswa kwemafuta hwakanyanya, huchaita kuti inki ipere uye iparare.
Kana uine chero Packaging zvinodiwa, unogona kutibata nesu. Semugadziri anochinjika wekurongedza kweanopfuura makore makumi maviri, isu tinokupa yako chaiyo yekurongedza mhinduro zvinoenderana nechigadzirwa chako chinodiwa uye bhajeti.
Nguva yekutumira: Oct-14-2023
