Iimpawu kunye nezakhono zokuprinta ze-inki esekwe emanzini kwi-corrugated paperibhokisi yetshokholethi
I-inki esekwe emanzini yimveliso ye-inki enobuhlobo nokusingqongileyo eye yafumana ingqalelo enkulu kwiminyaka yakutshanjeibhokisi yekhekheYintoni umahluko phakathi kwe-inki esekwe emanzini kunye ne-inki yokushicilela ngokubanzi, kwaye zeziphi izinto ezifuna ukuqwalaselwa xa zisetyenziswa? Apha, iMeibang iza kukuchazela ngokweenkcukacha.
I-inki esekwe emanzini isetyenzisiwe ekuprintweni kwephepha elirhabaxa ixesha elide kwamanye amazwe kwaye kangangeminyaka engaphezu kwama-20 ekhaya. Ukuprintwa kwephepha elirhabaxa kuphuhlisiwe ukusuka ekuprintweni kwe-lead (ukuprintwa koncedo), ukuprintwa kwe-offset (ukuprintwa kwe-offset) kunye nokuprintwa kwamanzi okuhlanjwa yi-rubber plate ukuya ekuprintweni kwe-inki esekwe emanzini okuguquguqukayo namhlanje. I-inki esekwe emanzini eguquguqukayo iphuhlisiwe ukusuka kuthotho lwe-resin oluguquliweyo lwe-rosin-maleic acid (udidi oluphantsi) ukuya kuthotho lwe-acrylic resin (udidi oluphezulu). Ipleyiti yokuprinta ikwaphuhliswa ukusuka kwipleyiti yerabha ukuya kwipleyiti ye-resin. Umatshini wokuprinta uphuhlisiwe kancinci kancinci ukusuka kwiiprinta ezinombala omnye okanye ezimbini ezineeroli ezinkulu ukuya kwiiprinta ze-FLEXO ezinemibala emithathu okanye emine.
Ulwakhiwo kunye neempawu zee-inki ezisekelwe emanzini ziyafana nezo zee-inki zokuprinta ngokubanzi. Ii-inki ezisekelwe emanzini zihlala zenziwe ngezinto ezifaka imibala, izihlanganisi, izixhobo ezincedisayo kunye nezinye izinto. Izinto ezifaka imibala ziizinto ezifaka imibala kwi-inki esekwe emanzini, ezinika i-inki umbala othile. Ukuze kwenziwe umbono ukhanye kushicilelo lwe-flexographic, izinto ezifaka imibala zihlala zisebenzisa imibala enokuzinza kakuhle kweekhemikhali kunye namandla aphezulu okufaka imibala; I-binder iqulathe amanzi, i-resin, ii-amine compounds kunye nezinye izinto ezifaka imibala kwizinto eziphilayo. I-resin yeyona nto ibalulekileyo kwii-inki ezisekelwe emanzini. I-acrylic resin enyibilikayo emanzini idla ngokusetyenziswa. I-binder component ichaphazela ngokuthe ngqo umsebenzi wokunamathela, isantya sokomisa, ukusebenza okuchasene nokunamathela, njl.njl. kwe-inki, kwaye ikwachaphazela ukuhanjiswa kwe-gloss kunye ne-inki. Ii-amine compounds zigcina ixabiso le-alkaline PH ye-inki esekwe emanzini, ukuze i-acrylic resin ibonelele ngesiphumo esingcono sokuprinta. Amanzi okanye ezinye izinto ezifaka imibala kwizinto eziphilayo ikakhulu zii-resin ezinyibilikisiweyo, Lungisa i-viscosity kunye nesantya sokomisa se-inki; Iiarhente ezincedisayo ziquka ikakhulu: i-defoamer, i-blocker, i-stabilizer, i-diluent, njl.
Njengoko i-inki esekwe emanzini iyimveliso yesepha, kulula ukuvelisa amaqamza asetyenziswayo, ngoko ke ioyile ye-silicone kufuneka yongezwe njenge-defoamer ukuthintela nokususa amaqamza, kunye nokuphucula ukusebenza kokudluliselwa kwe-inki. Ii-blockers zisetyenziselwa ukuthintela isantya sokomisa i-inki esekwe emanzini, ukuthintela i-inki ukuba yome kwi-anilox roll kunye nokunciphisa i-paste. I-stabilizer inokulungisa ixabiso le-PH ye-inki, kwaye ingasetyenziswa njenge-diluent ukunciphisa i-viscosity ye-inki. I-diluent isetyenziselwa ukunciphisa umbala we-inki esekwe emanzini, kwaye ingasetyenziswa njenge-brightener ukuphucula ukukhanya kwe-inki esekwe emanzini. Ukongeza, kufuneka kongezwe i-wax kwi-inki esekwe emanzini ukwandisa ukumelana kwayo nokuguguleka.
I-inki esekwe emanzini ingaxutywa namanzi ngaphambi kokuba yome. Nje ukuba i-inki yome, ayisayi kunyibilika emanzini nakwi-inki. Ke ngoko, i-inki esekwe emanzini kufuneka ivuselelwe ngokupheleleyo ngaphambi kokuba isetyenziswe ukuze igcine ukwakheka kwe-inki kufana. Xa wongeza i-inki, ukuba i-inki eseleyo kwi-inki inezingcola, kufuneka ihluzwe kuqala, ize isetyenziswe ne-inki entsha. Xa uprinta, musa ukuvumela i-inki yome kwi-anilox roll ukuze uphephe ukuvala umngxuma we-inki. Ukuvala ukuhanjiswa kwe-inki ngobuninzi kubangela ukungazinzi kokuprinta. Ngexesha lenkqubo yokuprinta, i-flexplate kufuneka ihlale imanziswe yi-inki ukuze uphephe ukuvala ipateni yombhalo kwipleyiti yokuprinta emva kokuba i-inki yomile. Ukongeza, kufunyaniswe ukuba xa i-viscosity ye-inki esekwe emanzini iphezulu kancinci, akufanelekanga ukongeza amanzi ngokungakhathali ukuze uphephe ukuphazamisa ukuzinza kwe-inki. Ungongeza isixa esifanelekileyo se-stabilizer ukuze uyilungise.
Ixesha lokuthumela: Matshi-15-2023
