Tlas'a boemo ba ka ntle, e le leseli le lik'hemik'hale, 'mala o mosoeu kapa o bobebe o tla ba le mosehla o holim'a metsi. Seo se bitsoa "Yellowing".
Ka mor'a ho mosehla, ha se feela ponahalo ea masela a masoeu le masela a dailoeng a senyehileng, empa hape ho apara le ho sebelisa bophelo ba bona ho tla fokotseha haholo.
Mabaka a textile yellowing ke afe?
Senepe-sesehla
Bosehla ba lifoto bo bolela bosehla bo bokaholimo batextileliaparo tse bakoang ke molecular oxidative cracking reaction ka lebaka la khanya ea letsatsi kapa mahlaseli a ultraviolet. Bosehla ba lifoto bo atile haholo liaparong tsa 'mala o bobebe, masela a soeufalitsoeng le masela a soeufalitsoeng. Ha lesela le khantšitsoe, matla a khanyang a fetisetsoa ho lidae tsa masela, e leng se etsang hore dae conjugate e phatlohe 'me e lebisa ho photo-fading. E le hore lesela la lesela le bonahale le le mosehla. Har'a, leseli le bonahalang le leseli la ultraviolet ka ho latellana ke tsona lintlha tse ka sehloohong tse bakang ho fela ha masela a dailoeng ka lidae tsa azo le lidae tsa phthalocyanine.
Phenolic Yellowing
Phenolic yellowing hangata e bakoa ke phetisetso ea puisano ea NOX le metsoako ea phenolic holim'a lesela. Lintho tse ka sehloohong tse sebetsang hangata ke li-antioxidants linthong tsa ho paka, joalo ka butylphenol (BHT). Ka mor'a nako e telele ea liphutheloana le lipalangoang, BHT ka thepa ea ho paka e tla itšoara ka NOX moeeng, e leng se tla fella ka mosehla oa liaparo.
Oxidative Yellowing
Oxidative yellowing e bolela ho ba mosehla ha lesela le nang le oxidized ke moea kapa lintho tse ling. Ka kakaretso, nakong ea ho daea le ho phethela, masela le liaparo li sebelisoa lidae tse fokotsehileng kapa tse thusang. Ha li kopana le likhase tse nang le oxidative, ho tla ba le phokotso ea oxidation, e tla baka mosehla.
Moemeli o Mosoeu o Mosehla
Moemedi wa bosweumosehla haholo-holo le hlaha ka leseli mmala masela. Ha karolo e setseng ea ho soeufala holim'a liaparo e falla ka lebaka la ho boloka nako e telele, e tla etsa hore moemeli oa whitening ka karolo e itseng a feteletse. Ka hona, liaparo li tla fetoha mosehla.
Softener Yellowing
Nakong ea ho qeta, ho tla sebelisa softener liaparo. Boemong ba mocheso le leseli, cation in softener e tla ba le oxidation, e tla lebisa ho lesela le mosehla.
Joang ho thibela yellowing ea textile?
1.Nakong ea tlhahiso le ts'ebetso, likhoebo li lokela ho leka ho fokotsa ts'ebeliso ea li-whitening agent, tse sa lokelang ho feta ntlha e mosehla ea moemeli ea soeufatsang.
2.Ka har'afinishingts'ebetso ea lesela, mocheso oa ho beha ha oa lokela ho ba o phahameng haholo. Mocheso o phahameng o tla etsa hore li-dyes kapa lithuso holim'a lesela li oxidize le ho phunyeha, ebe li etsa hore lesela le be mosehla.
3.Ka ho paka, polokelo le lipalangoang ka kopo sebelisa thepa ea sephutheloana e nang le BHT e nyane. Ka kopo leka ho boloka tikoloho ea polokelo le ea lipalangoang e kene ka mocheso o tloaelehileng ho qoba phenol yellowing.
4.Ha ho na le mosehla oa phenolic ka lebaka la thepa ea sephutheloana ea liaparo tsa masela, e le ho fokotsa tahlehelo, palo e itseng ea phofshoana e fokolang e ka hasana ka tlaase ho sephutheloana. Ebe u tiisa lebokose ka matsatsi a 1 ~ 2 'me ue bule ebe u beha lihora tse 6. Ka mor'a hore monko o felisoe, liaparo tsa masela li ka phutheloa hape. Kahoo yellowing e ka fetoloa ho isa tekanyong e phahameng.
5.Ka ho apara letsatsi le leng le le leng, ka kopo ela hloko tlhokomelo, hlatsoa khafetsa 'me u hlatsoe habobebe. 'Me ka kopo u se ke ua pepesehela letsatsi nako e telele.
Wholesale 43512 Anti-oxidation Agent Manufacture and Supplier | E ncha (textile-chem.com)
Nako ea poso: Dec-31-2022