Nyob rau hauv cov xwm txheej sab nraud, raws li lub teeb thiab tshuaj, cov khoom siv xim dawb lossis lub teeb xim yuav muaj xim daj. Qhov no hu ua "Yllowing".
Tom qab yellowing, tsis tsuas yog cov tsos ntawm cov ntaub dawb thiab dyed fabrics puas, tab sis kuj lawv hnav thiab siv lub neej yuav txo tau heev.
Dab tsi yog vim li cas rau textile yellowing?
Yees duab-daj
Diam duab-yellowing hais txog qhov yellowing ntawmtextilekhaub ncaws los ntawm molecular oxidative cracking cov tshuaj tiv thaiv vim hnub ci los yog ultraviolet lub teeb. Diam duab-daj yog feem ntau nyob rau hauv lub teeb xim khaub ncaws, bleached fabrics thiab whitened fabrics. Thaum cov ntaub yog lighted, lub teeb lub zog yog pauv mus rau cov ntaub dyes, uas ua rau cov dye conjugate mus tawg thiab ua rau cov duab-fading. Yog li ntawd cov ntaub nto zoo li daj. Ntawm, pom lub teeb thiab ultraviolet lub teeb yog feem ntau ua rau fading ntawm fabrics dyed los ntawm azo dyes thiab phthalocyanine dyes.
Phenolic Yellowing
Phenolic yellowing feem ntau tshwm sim los ntawm kev sib cuag ntawm NOX thiab phenolic tebchaw rau ntawm daim ntaub. Cov tshuaj reactive tseem ceeb feem ntau yog cov tshuaj antioxidants hauv cov khoom ntim, xws li butylphenol (BHT). Tom qab lub sijhawm ntev ntawm kev ntim khoom thiab kev thauj mus los, BHT hauv cov khoom ntim yuav ua rau NOX nyob rau hauv huab cua, uas yuav ua rau yellowing ntawm cov khaub ncaws.
Oxidative Yellowing
Oxidative yellowing yog hais txog yellowing ntawm cov ntaub uas yog oxidized los ntawm huab cua los yog lwm yam khoom. Feem ntau, thaum lub sij hawm dyeing thiab finishing txheej txheem, textile thiab tsoos tsho yog siv txo dyes los yog auxiliaries. Thaum lawv sib cuag nrog oxidative gases, yuav tshwm sim oxidation-txo, uas yuav ua rau yellowing.
Whitening Agent Yellowing
Tus neeg sawv cev dawbyellowing feem ntau tshwm sim ntawm lub teeb xim ntaub. Thaum cov residual whitening agent rau saum npoo ntawm cov khaub ncaws migrates vim lub sij hawm ntev cia, nws yuav ua rau whitening tus neeg sawv cev ntawm ib feem yog ntau dhau. Yog li ntawd, cov khaub ncaws yuav daj.
Softener Yellowing
Hauv kev ua tiav, yuav siv softener hauv khaub ncaws. Nyob rau hauv cov xwm txheej ntawm tshav kub thiab lub teeb, cation hauv softener yuav muaj oxidation, uas yuav ua rau cov ntaub yellowing.
Yuav ua li cas tiv thaiv yellowing ntawm textile?
1.Thaum tsim khoom thiab kev ua haujlwm, cov tuam txhab yuav tsum sim txo qis kev siv cov tshuaj ntxuav hniav dawb, uas yuav tsum tsis txhob dhau qhov yellowing point ntawm whitening agent.
2.In covua tiavtxheej txheem ntawm ntaub, qhov chaw kub yuav tsum tsis txhob siab dhau. Kub kub yuav ua rau cov dyes los yog auxiliaries ntawm cov ntaub nto oxidize thiab tawg, thiab ces ua rau cov ntaub yellowing.
3.Nyob rau hauv lub ntim, cia thiab tsheb thauj mus los thov siv cov ntaub ntawv pob uas muaj tsawg BHT. Thov sim ua kom qhov chaw cia thiab kev thauj mus los hauv qhov cua ntawm qhov kub thiab txias kom tsis txhob muaj phenol yellowing.
4.Nyob rau hauv cov ntaub ntawv ntawm phenolic yellowing vim lub pob khoom ntawm textile khaub ncaws, thiaj li yuav txo tau poob, ib tug tej yam npaum li cas ntawm cov hmoov yuav tau tawg nyob rau hauv qab ntawm lub pob. Thiab tom qab ntawd thov kaw lub thawv rau 1 ~ 2 hnub thiab qhib nws thiab tso rau 6 teev. Tom qab cov ntxhiab tsw tau ploj mus, cov khaub ncaws textile tuaj yeem rov ntim dua. Yog li qhov yellowing tuaj yeem hloov kho mus rau qhov siab tshaj plaws.
5.Nyob rau hauv txhua hnub hnav, thov xyuam xim rau kev saib xyuas, ntxuav ntau zaus thiab ntxuav me ntsis. Thiab thov tsis txhob nthuav tawm rau lub hnub ntev.
Lub sij hawm xa tuaj: Dec-31-2022