Yadda Ake Hana Sulfur Black Tender Of Cotton Fiber?

Ana amfani da rini na sulfur musamman don rina zaren auduga, haka kuma ga yadudduka da aka haɗa auduga/vinylon. An narkar da shi a cikin sodium sulfide kuma shine kyakkyawan zaɓi don samfuran duhu na fiber cellulose, musamman ga Sulfur Black 240% da Sulfur Blue 7dyeing. Iyayen rini na sulfur ba su da alaƙa da zaruruwa, kuma tsarinsa ya ƙunshi sulfur bonds (-S-), haɗin disulfide (-SS) ko haɗin haɗin polysulfide (-Sx-), waɗanda aka rage zuwa ƙungiyoyin sulfhydryl (-Sna) ƙarƙashin aikin sodium sulfide reductant.Ya zama gishiri leuco sodium mai narkewa da ruwa. Leuco yana da kyakkyawar alaƙa ga fibers cellulose saboda manyan ƙwayoyin rini, waɗanda ke samar da manyan Van der Waals da haɗin gwiwar hydrogen tare da zaruruwa. Ko da yake bakan launi na sulfur dyes bai cika ba, galibi shuɗi da baki, launin ba shi da haske, amma ƙirar sa yana da sauƙi, farashin yana da ƙasa, tsarin rini yana da sauƙi, daidaita launi yana dacewa, kuma saurin launi yana da kyau. .Ya kamata a lura, duk da haka, cewa wasu rini na sulfur, irin su sulfur baƙar fata, na iya haifar da taushi na Fiber auduga.

Ana buƙatar kulawa da taushi na fiber bayan daSulfur Black 240%ana amfani da rini don rini. Wasu dalilai na iya ƙara haɗarin ɓarnawar fiber, kamar yawan amfani da rini, wanda ba wai kawai yana ƙara haɗarin fashewa ba, har ma yana rage saurin launi kuma yana sa wankewa ya fi wahala. Bugu da ƙari, bayan yin rini, ya kamata a wanke shi sosai don hana wankewa marar tsabta, kuma launi mai yawo a kan yarn yana da sauƙi don bazuwa zuwa sulfuric acid lokacin ajiya, wanda ke sa fiber ya rushe.

Don rage ko hana ƙwayar fiber, ana iya ɗaukar matakan masu zuwa:

1. Ƙayyade adadin sulfur baƙar fata: adadin mercerizing na musamman rini mai launi na farko ba zai wuce 700 G/kunshi ba.

2. Bayan yin rini, a wanke sosai da ruwa don hana launi mai iyo daga lalacewa zuwa sulfur acid yayin ajiya.

3. A yi amfani da magungunan hana tausasawa, kamar su urea, soda ash, sodium acetate, da sauransu.

4. Matsayin laushin zaren da aka zana ruwa bai kai na zaren alkali ba.

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