Yuav ua li cas tiv thaiv ivory board los ntawm yellowing?

Cov thawv xim siv rau cov khoom ntim khoom thiab cov thawv ntim khoom rau ntau lub ntim khoom feem ntau yog ua los ntawmivory board . Tom qab slitting, luam ntawv thiab tom qab ua tiav, nws dhau los ua peb lub thawv ntim khoom.

Niaj hnub no, thaum cov khoom siv tau txais txiaj ntsig ntau dua, cov neeg muaj kev xav tau ntau dua thiab siab dua rau qhov zoo ntawm cov ntawv ntim khoom. Ivory board (tseem hu ua coated dawb cardboard los yogFBB ) yog cov khoom ntim qib siab, thiab nws cov tsos zoo nkauj kuj tau dhau los ua lub hom phiaj ntawm tib neeg txoj kev nrhiav. Txawm li cas los xij, qhov tshwm sim yellowing ntawm daim ntawv coated whiteboard thaum siv cuam tshuam rau cov tsos ntawm cov ntim txheej. Lub yellowing ntawm daim ntawv dawb yog hais txog qhov tshwm sim uas cov khoom dawb yuav txo qis rau qee yam tom qab qee lub sijhawm cia lossis raug tshav ntuj.
ntim cov thawv

Cov kev tshawb fawb tshiab tshaj plaws qhia tau hais tias qhov tshwm sim ntawm yellowing yog tias cov khoom siv saum npoo ntawm lub thawv folding board reacts nrog oxygen hauv huab cua, uas hloov cov qauv tshuaj ntawm cov khoom siv saum npoo av, yog li cuam tshuam rau kev pom ntawm tib neeg. Qib ntawm oxidation txiav txim siab qhov hnyav ntawm yellowing.
FBB

Yam uas cuam tshuam rau yellowing ntawmdawb cardboard Feem ntau suav nrog cov hauv qab no: coated whiteboard base paper, fluorescent whitening agent, xim pigment, txheej nplaum, thiab lwm yam. Txhim kho cov txheej txheem ntawm cov ntaub ntawv hauv paus, xaiv cov khoom zoo fluorescent whitening agents, xim pigments, kho cov tshuaj kom zoo, thiab kev tshawb fawb. txiav txim siab qhov sib xyaw ua ke zoo tshaj plaws ntawm cov nplaum, uas tuaj yeem txo qhov tshwm sim yellowing ntawm coated whiteboard ntawv; Cov khoom siv ntxiv, xws li nano-silicon-raws li oxides, cov khoom siv tshuaj xws li UV absorbers thiab antioxidants, kuj yuav txo qhov tshwm sim daj ntawm cov ntawv coated whiteboard; ntxiv dag zog rau kev tswj hwm ntawm cov ntawv whiteboard thiab kev tiv thaiv txhua yam ntawm kev ntim khoom thiab kev cia khoom kuj yog txoj hauv kev zoo los daws qhov yellowing ntawm cov ntawv dawb.

Tswj tag nrho cov txheej txheem koom nrog, ua qauv thiab ua kom yooj yim rau kev ua haujlwm, thiab qhov zoo ntawm daim npav dawb coated yuav yog thawj chav kawm.


Post lub sij hawm: Sep-05-2022