Ibhokisi yokudlala yabantwana isutikheyisi yephepha lekhadibhodi enesiphatho

I-inki iyakhaphukhaphu- iyamelana nokuguquka kombala kunye nokuguquka kwebala

I-inki ekukhanyeni kwelanga, umbala wayo kunye nokuqaqamba ziya kwahluka ngokwemigangatho yotshintsho, ukumelana ngokupheleleyo ukukhanya kwaye ungatshintshi ithoni ye-inki ayikho, ekukhanyeni kwelanga, yonke inki umbala uya kuvelisa amanqanaba ahlukeneyo utshintsho.Kukho iindidi ezimbini zotshintsho.

I-Fade: phantsi kwesenzo sokukhanya kwe-ultraviolet ray, ukuchasana nokukhanya kwe-inki kubi, kuphulukene nombala oqaqambileyo oqaqambileyo, umbala uba ngwevu.Ingakumbi i-inki yombala okhanyayo kunye noshicilelo olunemibala emine xa imibala etyheli nebomvu imibini ngokukhawuleza, kwaye i-cyan kunye ne-inki iyancipha kancinci.

I-Discoloration: ngokuchasene nokuprintwa kwe-inki emnyama, ukutshintsha kombala phantsi kwesenzo sokukhanya kwelanga kumnyama, umbala utshintshile, abantu babiza olu tshintsho lutshintsho.

Isiphumo se-emulsification

Ipleyiti yokushicilela ye-Offsctdruckmasenten ayinakohlulwa ukumanzisa inxalenye engenanto yepleyiti, i-offscctdruckmasenten ngamanzi okuqala kwi-inki, amanzi ngokuqinisekileyo aya kubonakala emulsifying isenzeko.Umbala we-Ink emulsion uya kuthotywa, kodwa, emva kokuba ukufudumala kwamanzi kunokubuyisela umbala wokuqala, ngoko ke amanzi amaninzi, ubuninzi be-emulsion, kuya kubangela ukubola.Ngokukodwa, iqondo le-emulsification yethoni ye-inki eyahlukileyo ngokupheleleyo kunye, into eyenzeka ngokutshintsha kwemibala ibalasele ngakumbi.

Iimpawu zephepha umphezulu wephepha ukuguda

Ukuguda komphezulu wephepha kunye nekopi yokuprinta inobudlelwane obusondeleyo, hayi iphepha eligudileyo lihlala lifuna uxinzelelo olukhulu, ukwenzela ukwenza i-inki kwaye inonxibelelwano oluhle.Ezifana noshicilelo inki viscosity, liquidity, ukugcina isixa esithile inki ukutyeba bhanya, ukwanda koxinzelelo kaninzi kwenza molecularly imprinted indawo esasazwayo, kwangaxeshanye, diphu iphepha endaweni, kodwa uqhagamshelwano imbi, ezifana: iphepha ezigqunyiweyo kunye newsprint kwi. ipleyiti enye eprintiweyo iziphumo zinomehluko omkhulu, zinokuthelekisa ngokucacileyo isiphumo soshicilelo esahlukileyo.

Ukufunxwa kwephepha

Iphepha, kwakhona ubungakanani ukufunxa kunye nesiphumo uphindaphindo lunobudlelwane obuthe ngqo, ngokuqhelekileyo kumgangatho woshicilelo lwemathiriyeli ekhululekileyo amaphepha ephepha, ukuba inki liquidity, viscosity ephantsi, iphepha liya kufunxa ngakumbi umaleko inki uqhagamshelo, ukuba uboya stoma. I-diameter enkulu kunobubanzi be-pigment particles, ngoko ke, nokuba i-pigments ifakwe ngaphakathi, ukugcwala kwe-imprinting kunciphisa.Kufuneka kwandiswe umaleko we-inki ngokufanelekileyo.Nangona kunjalo, ukunyusa ubukhulu boluhlu lwe-inki, ngexesha lokufaka i-embossing kuya kubangela "ukusabalalisa", kuchaphazela umphumo wekopi yokuprinta.Ukufunxwa kwephepha elincinci, kunokwenza uninzi lwefilimu ye-inki luvele kumphezulu wephepha, ukuze umaleko we-inki oshicilelweyo ube nokuhluthwa okuhle.

Iphepha permeability iphepha permeability mkhulu, uya kwenza ubungqingqwa inki umaleko obhityileyo, imingxunya umphezulu iphepha mikhulu, kodwa kwakhona wenze inxalenye amasuntswana pigment zangeniswa kwiphepha ngaxeshanye, ngoko kukho ingqiqo umbala.Ukuza kuthi ga ngoku, ukusetyenziswa komphezulu orhabaxa, ukuthungwa okuxekethileyo kwephepha, kunye ne-inki fluidity kunye nephepha elikhulu, ukunikela ingqalelo kumbala.

I-pigment ayimelani nobushushu

I-inki kwinkqubo yokomisa, ukukhanya ngokukhawuleza - ukomisa inki yoshicilelo lwerabha ikakhulu i-conjunctiva - ukomisa nge-oxidation.Ukomiswa kwe-inki yoshicilelo ye-offset phambi kokuba kubekho isigaba esimiselweyo, i-inki ye-oxidation ye-polymerization yi-exothermic reaction, ukomisa ngokukhawuleza kuya kunika ubushushu obuninzi, ukuba ubushushu bukhutshwa ngokucothayo, abuyi kwenza umbala we-pigment yobushushu.Umzekelo: i-inki yombala wegolide iba mnyama kwaye ilahlekelwe ukubengezela kwayo kwasekuqaleni.

Ngexesha loshicilelo, amaphepha oshicilelo afunjwe abe yimfumba, ngenxa yokuba afunjwe kakhulu, indawo ephakathi yoshicilelo lwe-inki oxidation yepolymerization exothermic reaction, ubushushu akulula ukuthumela ngaphandle, ubushushu obuphezulu kakhulu kwinxalenye ephakathi ye-discoloration ngakumbi. .

Ioli eyomileyo inefuthe elikhanyayo

I-inki yombala yeyethoni epholileyo, i-emerald eluhlaza, i-emerald eluhlaza, i-emerald eluhlaza kunye nezinye i-inki yombala, ungasebenzisi ioli ebomvu yokoma, kuba ioli ebomvu yokoma ngokwayo kunye nemfusa enzulu, iya kuchaphazela umbala we-inki yokukhanya.

Ioli eyomileyo emhlophe ibonakala imhlophe, kodwa i-conjunctiva inombala omdaka emva kwe-oxidation.Ukuba ubungakanani beoli emhlophe yomile kakhulu, ushicilelo luya kuba lutyheli-ntsundu xa lomile, ngelixa umbala we-inki emnyama njengoluhlaza, omnyama kunye nomfusa kunye neoli ebomvu eyomileyo ayiyi kuchaphazeleka kakhulu.

I-inki ayinayo ialkali - iyaxhathisa

Iphepha lokushicilela ixabiso le-PH = 7, iphepha elingathathi hlangothi lelona lifanelekileyo, i-pigments jikelele ye-inorganic eveliswa yi-ink acid, i-alkaline ihluphekile, i-asidi ye-organic pigments, i-alkaline ingcono, ngakumbi i-blue blue, i-inki emnyama emnyama iya kuphelelwa ngealkali.Ialkali ephakathi emthubi ngombala ukuya kobomvu, i-electrochemical aluminium foil stamping, iIndiya iya kuba yigolide yakudala etyheli kwizinto zealkali, akukho gloss, iphepha lealkaline elibuthathaka ngakumbi, lihlala lidibana nokushicilela ukubopha emva kokuveliswa kuqulethe izinto zokuncamathelisa zealkali, ukuba ukupakisha ukuprinta Imveliso yinto yealkaline efana nesepha, isepha, umgubo wokuvasa njalo njalo, bonke bafuna ukuqwalasela ukuxhathisa kwealkali, ukuxhathisa kwi-saponification yokusebenza kweinki.

Impembelelo yendawo yokugcina

Uninzi lweemveliso zokushicilela ukugcinwa kwexesha elide, ngokuqinisekileyo ziya kubonisa into etyheli, izizathu zezi nkalo zilandelayo.

Ifiber yephepha iqulethe i-lignin kunye nokuguqulwa kombala.Amaphephandaba ashicilelwe kushicilelo lweendaba adla ngokujika abe tyheli kwaye abe brittle.

I-offset yoshicilelo olunemibala emine ye-dot overprinter color printing products, ininzi ekukhanyeni kwelanga, imozulu, umoya kunye nemvula, ukhukuliseko lwangaphandle lobushushu obuphezulu, njalo njalo, ngenxa yokuba i-pigment ayikwazi ukumelana nokukhanya, ukumelana nobushushu, kunye nombala okanye ukucima.

Izinto zokutshintsha kombala kwizinto eziprintiweyo ziyahlukahluka kwaye akukho mveliso inokwenza yonke into.Kanye njengale sutikheyisi yephepha, umbala wayo unokutshintsha ngokuhamba kwexesha.Kodwa noko intle xa siyisebenzisa.