Discoloration thaum lub sij hawm number case drying txheej txheem
Thaum lub sij hawm luam ntawv, cov ntawv luam tawm tshiab xim yog xim dub dua piv rau cov xim number case qhuav. Tom qab ib lub sijhawm, cov xim number case yuav sib dua tom qab luam ntawv dries; Qhov no tsis yog ib qho teeb meem nrog tus number case yog resistant rau lub teeb fading los yog discoloration, tab sis feem ntau yog vim lub discoloration los ntawm kev nkag mus thiab oxidation ntawm zaj duab xis thaum lub sij hawm ziab. Relief number case feem ntau nkag mus thiab dries, thiab tus number case txheej ntawm cov khoom tsuas yog luam tawm los ntawm lub tshuab luam ntawv yog tuab heev. Lub sijhawm no, nws yuav siv qee lub sijhawm rau kev nkag mus thiab oxidation zaj duab xis kom qhuav qhov khoob.
Ink nws tus kheej tsis tiv taus lub teeb thiab ploj mus
Ink fading thiab discoloration yog inevitable thaum raug rau lub teeb, thiab tag nrho cov inks yuav muaj kev sib txawv degrees ntawm fading thiab discoloration tom qab raug rau lub teeb. Lub teeb xim number case ploj mus thiab discolors loj heev tom qab lub teeb raug rau lub teeb ntev. Daj, siv lead ua liab, thiab ntsuab yuav ploj mus sai dua, thaum cyan, xiav, thiab dub ploj zuj zus qeeb dua. Nyob rau hauv kev ua hauj lwm, thaum sib tov number case, nws yog qhov zoo tshaj plaws los xaiv tus number case nrog lub teeb pom kev zoo. Thaum kho lub teeb xim, xim yuav tsum tau them rau lub teeb tsis kam ntawm tus number case tom qab dilution. Thaum sib tov tus number case, qhov sib xws ntawm lub teeb tsis kam ntawm ob peb xim ntawm tus number case yuav tsum tau txiav txim siab.
Kev cuam tshuam ntawm acidity thiab alkalinity ntawm daim ntawv ntawm number case fading thiab discoloration
Feem ntau, daim ntawv tsis muaj zog alkaline. Qhov zoo tshaj pH tus nqi ntawm daim ntawv yog 7, uas yog nruab nrab. Vim yog qhov yuav tsum tau ntxiv cov tshuaj xws li caustic soda (NaOH), sulfides, thiab chlorine gas thaum lub sij hawm papermaking, kev kho tsis raug thaum lub sij hawm pulp thiab daim ntawv ua tej zaum yuav ua rau cov ntawv ua kua qaub los yog alkaline.
Cov alkalinity ntawm daim ntawv yog los ntawm cov txheej txheem papermaking nws tus kheej, thiab qee qhov yog tshwm sim los ntawm cov nplaum uas muaj cov tshuaj alkaline siv hauv kev tsim khoom tom qab khi. Yog tias ua npuas dej alkali thiab lwm cov alkaline adhesives raug siv, cov tshuaj alkaline yuav nkag mus rau hauv cov ntawv fibers thiab ua rau cov tshuaj lom neeg nrog rau cov number case rau ntawm daim ntawv, ua rau lawv ploj thiab tsis muaj xim. Thaum xaiv cov khoom siv raw thiab cov nplaum, nws yog qhov yuav tsum tau ua ntej txheeb xyuas lub cev thiab tshuaj lom neeg ntawm cov nplaum, ntawv, thiab qhov cuam tshuam ntawm acidity thiab alkalinity ntawm number case, ntawv, electrochemical aluminium foil, kub hmoov, nyiaj hmoov, thiab lamination.
Kub induced discoloration thiab discoloration
Qee qhov ntim khoom thiab kho kom zoo nkauj cov cim lag luam tau txuas rau lub tshuab fais fab mov, lub tshuab hluav taws xob, lub qhov cub hluav taws xob, thiab cov khoom siv hauv chav ua noj, thiab tus number case sai sai thiab tsis muaj xim nyob rau hauv qhov kub thiab txias. Qhov kub tsis kam ntawm tus number case yog nyob ib ncig ntawm 120 degrees Celsius. Offset tshuab luam ntawv thiab lwm yam tshuab luam ntawv tsis ua haujlwm ntawm kev kub ceev thaum lub sijhawm ua haujlwm, thiab tus number case thiab number case rollers, nrog rau cov number case thiab luam ntawv phaj phaj tsim hluav taws xob vim muaj kev sib txhuam ceev. Lub sijhawm no, tus cwj mem kuj ua kom sov.
Discoloration tshwm sim los ntawm cov xim tsis tsim nyog hauv kev luam ntawv
Cov xim feem ntau siv rau plaub xim monochrome tshuab yog: Y, M, C, BK. Lub tshuab plaub xim muaj cov xim thim rov qab ntawm: BK, C, M, Y, uas txiav txim siab seb tus number case yuav luam tawm ua ntej thiab tom qab ntawd, uas tuaj yeem cuam tshuam rau fading thiab discoloration ntawm luam ntawv number case.
Thaum npaj cov xim luam ntawv, xim lub teeb thiab inks uas nquag fading thiab discoloration yuav tsum tau luam ua ntej, thiab cov xim tsaus yuav tsum tau luam tawm tom qab kom tsis txhob fading thiab discoloration.
Discoloration thiab discoloration tshwm sim los ntawm kev siv tsis zoo ntawm cov roj qhuav
Tus nqi ntawm cov roj qhuav qhuav thiab cov roj ziab dawb ntxiv rau hauv tus number case yuav tsum tsis pub tshaj 5% ntawm tus number case, kwv yees li 3%. Cov roj ziab kom qhuav muaj cov nyhuv catalytic muaj zog nyob rau hauv txheej number case thiab ua kom sov. Yog tias cov roj ziab qhuav ntau dhau lawm, nws yuav ua rau tus number case ploj thiab tsis muaj xim.
Yog tias koj muaj cov kev cai ntim khoom, koj tuaj yeem tiv tauj peb. Raws li cov chaw tsim khoom lag luam hloov pauv tau ntau dua 20 xyoo, peb yuav muab koj cov kev daws teeb meem zoo raws li koj cov khoom xav tau thiab peev nyiaj.
Post lub sij hawm: Oct-14-2023
