Ƙarƙashin yanayin waje, kamar haske da sinadarai, launin fari ko haske zai sami launin rawaya. Wato ake kira "Yellowing".
Bayan launin rawaya, ba wai kawai bayyanar fararen yadudduka da rinannun yadudduka sun lalace ba, har ma da saka su da amfani da rayuwa za su ragu sosai.
Menene dalilan launin rawaya na yadi?
Hoto-rawaya
Photo-yellowing yana nufin saman yellowing nayaditufafin da ke haifar da halayen ƙwayar cuta ta ƙwayoyin cuta saboda hasken rana ko hasken ultraviolet. Hoto-yellow ya zama ruwan dare a cikin tufafi masu launin haske, yadudduka masu bleaked da yadudduka masu fararen fata. Lokacin da aka kunna masana'anta, ana canza makamashin hasken wuta zuwa riniyoyin masana'anta, wanda ke haifar da rini don fashe kuma yana haifar da faɗuwar hoto. Don haka fuskar masana'anta ta bayyana rawaya. Daga cikin, hasken da ake iya gani da hasken ultraviolet bi da bi sune manyan abubuwan da ke haifar da dushewar yadudduka da rinayen azo da rinayen phthalocyanin.
Yellowing Phenolic
Fenolic yellowing gabaɗaya yana haifar da canjin lamba na NOX da mahadi na phenolic akan farfajiyar masana'anta. Babban abubuwan da ke amsawa yawanci sune antioxidants a cikin kayan tattarawa, kamar butylphenol (BHT). Bayan dogon lokaci na marufi da sufuri, BHT a cikin kayan kwalliyar za su amsa tare da NOX a cikin iska, wanda zai haifar da launin rawaya na tufafi.
Rawayen Oxidative
Oxidative yellowing yana nufin launin rawaya na masana'anta wanda iska ko wasu abubuwa ke sanyawa. Gabaɗaya, yayin aikin rini da ƙarewa, ana amfani da rini da rini da rage yawan rini ko wasu kayan taimako. Lokacin da suke hulɗa da iskar oxygen, za a sami raguwa-raguwa, wanda zai haifar da yellowing.
Wakilin Farin Rawaya
Wakilin fariyellowing yafi faruwa a haske launi yadudduka. Lokacin da saura whitening wakili a saman tufafi ya yi hijira saboda dogon lokaci ajiya, shi zai sa whitening wakili a kan wani bangare ne wuce kima. Saboda haka, tufafin za su zama rawaya.
Rawaya mai laushi
A cikin tsari na ƙarshe, za a yi amfani da softener a cikin tufafi. A cikin yanayin zafi da haske, cation a cikin softener zai sami oxidation, wanda zai haifar da masana'anta yellowing.
Yadda za a hana yellowing na yadi?
1.Lokacin masana'antu da sarrafawa, kamfanoni yakamata suyi ƙoƙarin rage yawan amfani da wakili na fata, wanda bai kamata ya wuce madaidaicin launin rawaya na wakili ba.
2. A cikingamawatsari na masana'anta, yanayin zafin jiki bai kamata ya kasance mai girma ba. Babban zafin jiki zai sa rini ko auxiliaries a kan masana'anta surface oxidize da fashe, sa'an nan ya sa masana'anta yellowing.
3.A cikin marufi, ajiya da sufuri don Allah yi amfani da kayan kunshin da ke dauke da ƙananan BHT. Da fatan za a yi ƙoƙarin kiyaye wurin ajiya da yanayin sufuri a cikin iska a yanayin zafi na yau da kullun don guje wa launin ruwan phenol.
4.In case of phenolic yellowing saboda kunshin kayan kayan yadi, don rage hasara, wani adadin rage foda za a iya warwatse a kasa na kunshin. Sannan da fatan za a rufe kwandon na tsawon kwanaki 1 ~ 2 sannan a bude shi kuma a ajiye shi na tsawon awanni 6. Bayan da wari ya bace, za a iya sake tattara kayan tufafi. Don haka ana iya canza launin rawaya zuwa matsakaicin iyaka.
5.A cikin lalacewa na yau da kullum, don Allah kula da kulawa, wanke akai-akai kuma wanke da sauƙi. Kuma don Allah kar a daɗe a fallasa rana.
Wholesale 43512 Anti-oxidation Agent Manufacturer da Supplier | Innovative (textile-chem.com)
Lokacin aikawa: Dec-31-2022